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Sample records for camara pulpar apos

  1. Interface for the Construction of the CMS Detector (IC''3MS); Interfaz para la Construccion de Camaras CMS (IC''3MS)

    Energy Technology Data Exchange (ETDEWEB)

    Ballador Ferreras, A.; Gonzalez Giralda, C. [Ciemat. Madrid (Spain)

    2001-07-01

    This Technical Report shows a computer System named: Interface for the Control of CMS Detector (IC''3MS), whose main objective is to provide a design and advice tool which can be used for the assembly of super layers for the Compacts Muon Solenoid. This computer application is divided up into three independent modules that maintain a proper connection between them. These modules correspond to the three principal actors that control the assembly we said before. These actors are the analysts, that determine the control routines, the engineers, that specify the control details and finally the workers who use the control routines. This application has been developed as a collaboration between the Experimental Physic of Particles; which belongs to the Fusion and Elementary particles department and the Special Project Group, belonging to the Information Technologies Department, both them from the CIEMAT (Author)

  2. Study in vitro of dental enamel irradiated with a high power diode laser operating at 960 nm: morphological analysis of post-irradiation dental surface and thermal effect analysis in pulp chamber due to laser application; Estudo in vitro do esmalte dental irradiado com laser de diodo de alta potencia em 960 nm: analise morfologica da superficie dental pos-irradiada e analise do comportamento termico na camara pulpar devido a aplicacao laser

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    Quinto Junior, Jose

    2001-07-01

    Objectives: This study examines the structural and thermal modifications induced in dental enamel under dye assisted diode laser irradiation. The aim of this study is to verify if this laser-assisted treatment is capable to modify the enamel surface by causing fusion of the enamel surface layer. At the same time, the pulpal temperature rise must be kept low enough in order not to cause pulpar necrosis. To achieve this target, it is necessary to determine suitable laser parameters. As is known, fusion of the enamel surface followed by re-solidification produce a more acid resistant layer. This surface treatment is being researched as a new method for caries prevention. Method and Materials: A series of fourteen identically prepared enamel samples of human teeth were irradiated with a high power diode laser operating at 960 nm and using fiber delivery. Prior to irradiation, a fine layer of cromophorous ink was applied to the enamel surface. In the first part of the experiment the best parameter for pulse duration was determined. In the second part of the experimental phase the same energy density was used but with different repetition rates. During irradiation we monitored the temperature rise in the pulpal cavity. The morphology of the treated samples was analysed under SEM. Results: The morphology of the treated samples showed a homogeneously re-solidified enamel layer. The results of the temperature analysis showed a decrease of the pulpal temperature rise with decreasing repetition rate. Conclusion: With the diode laser it is possible to cause morphological alterations of the enamel surface, which is known to increase the enamel resistance against acid attack, and still maintain the temperature rise in the pulpar chamber below damage threshold. (author)

  3. Evaluation of temperature variation in pulp chamber after high power diode laser irradiation ({lambda}=830 nm) on dental enamel: 'in vitro' study; Avaliacao da variacao da temperatura na camara pulpar apos a irradiacao de diodo laser de alta potencia de 830 nanometros em esmalte dental: estudo 'in vitro'

    Energy Technology Data Exchange (ETDEWEB)

    Macri, Rodrigo Teixeira

    2001-07-01

    The aim of this study was to observe the variation of temperature in the pulp chamber caused by irradiation of a commercial diode laser operating in continuous wave with wavelength 830 nm over the dental enamel. In the first part of this study, two types of tooth models were tested: 3,5 mm slice and whole tooth. In the second part, we irradiated the buccal si de of the enamel in 2 primary lower incisors from cattle with Opus 10 diode laser for 10 s with power levels of 1 W and 2 W, always using an absorber. Two thermocouples were used. The first one was inserted in the dentin wall closest to the irradiation site, while the second was inserted in the middle of the pulp chamber. It was observed that the thermocouples registered different temperatures. Always, the dentin thermocouple registered higher temperatures. Considering the dentin records, the irradiation of 1 W for 10 s can be safe for the pulp. Further studies must be developed related to the correct positioning of the thermocouples inside the pulp chamber. This was a first step of using diode laser in enamel, and in this study, we concluded that the Opus 10 diode laser shown to be safe for this use, with 1 W power for 10 S. (author)

  4. In vivo toxicity study of Lantana camara

    Institute of Scientific and Technical Information of China (English)

    Badakhshan Mahdi Pour; Sreenivasan Sasidharan

    2011-01-01

    Objective: To investigate the toxicity of methanol extract of various parts (Root, Stem, Leaf, Flower and Fruit) of Lantana camara(L. Camara) in Artemia salina. Methods: The methanol extracts of L. camara were tested for in vivo brine shrimp lethality assay. Results: All the tested extract exhibited very low toxicity on brine shrimp larva. The results showed that the root extract was the most toxic part of L. camara and may have potential as anticancer agent. Conclusions:Methanolic extract of L. camara is relatively safe on short-term exposure.

  5. Effects of Corynespora cassiicola on Lantana camara Efeitos de Corynespora cassiicola sobre Lantana camara

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    J.L. Passos

    2010-06-01

    Full Text Available The present study combines the examination of toxins produced by C. cassiicola and the effects of the fungus colonization on L. camara. C. cassiicola was cultivated on solid media and the crude extracts CAE and CE were produced. Both extracts were submitted to a seed germination and growth assay utilizing Physalis ixocarpa, Trifolium alexandrinum, Lolium multiflorum and Amaranthus hypochodriacus. The effect of the extracts on the ATP-synthesis in isolated spinach chloroplasts was also tested. Bioassay guided chromatographic fractionation identified the most active extract (CAE. From this extract ergosta-4,6,8(14,22-tetraen-3-one (C1 and fatty acids were isolated. The C1 compound reduce ATP synthesis in isolated spinach chloroplasts. The interference of fatty acids with ATP synthesis and also with weed growth provides one explanation of the phytogrowth-inhibitory properties of such fungal extracts. Histological observations involving fungus-plant interaction were made on L. camara plants inoculated with C. cassiicola conidia suspension. After inoculations, fragments of the leaf blades were prepared for observation by light and scanning electron microscopy. Fungal colonization of Lantana camara was typical of a necrotroph and penetration initiated a hypersensitive response. L. camara reacted to the pathogen penetration through thickening of the epidermis walls, cytoplasm granulation and a cicatrisation tissue.O presente estudo combina a investigação de toxinas produzidas por C. cassiicola e os efeitos da colonização do fungo sobre L. camara. C. cassiicola foi cultivado em meio sólido do qual se obtiveram os extratos brutos CAE e CE. Ambos os extratos foram submetidos aos testes de germinação e crescimento utilizando Physalis ixocarpa, Trifolium alexandrinum, Lolium multiflorum e Amaranthus hypochodriacus e sobre a síntese de ATP em cloroplastos isolados de espinafre. Os bioensaios direcionaram o fracionamento cromatográfico permitindo a

  6. Procesos pulpares y periapicales agudos como urgencias estomatológicas. Holguín 2009

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    Carmen Graña Dorta

    2009-01-01

    Full Text Available Aborda un estudio observacional descriptivo de corte transversal en días comprendidos en Mayo y Junio del 2009. Se desarrolló en las consultas de urgencias de las clínicas ¨Manuel Angulo Farrán¨ y ¨Mario Pozo Ochoa¨ de la Provincia Holguín. La muestra estuvo constituida por 70 pacientes que presentaron patologías pulpares y periapicales agudas. Se Planteó como objetivo determinar las patologías más frecuente según grupos de edad y sexo, identificar las causas principales de estas afecciones y evaluar la conducta diagnóstica y terapéutica inmediata en las consultas de urgencia. Como resultado arrojó una mayor afectación por patologías pulpares y periapicales agudas en el sexo femenino y en el grupo de edad de 35 a 59 años. La pulpitis reversible fue la patología pulpar más frecuente. La causa principal de afecciones fue la caries dental. Se evaluó de regular la conducta diagnóstica y terapéutica en las consultas de urgencias objeto de estudio.

  7. Inducción del cierre apical en el diente con necrosis pulpar y el ápice no formado

    OpenAIRE

    Canalda Sahli, Carlos

    1988-01-01

    Se efectúa una revisión del proceso de apicoformación en dientes con necrosis pulpar y ápice no formado, analizando el mecanismo de cierre apical inducido por el hidróxido de calcio y otras substancias, así como la histopatología del mismo.

  8. Lantana Camara and Butterfly Abundance in an Urban Landscape: Benefits for Conservation or Species Invasion?

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    Mukherjee Swarnali

    2015-12-01

    Full Text Available Urban landscapes host a range of diverse plants that, in turn, facilitate maintenance of different species of pollinators, including butterflies. In this context, the importance of Lantana camara, an invasive plant species, was assessed highlighting its role in maintenance of butterfly diversity, using Kolkata, India as a study area. Initial study revealed consistent presence of L. camara in both urban and rural sites with at least 25 different butterfly species association. The proportional relative load and the preferences of butterfly species for the each plant species were inclined towards L. camara. Irrespective of the sites, the diurnal and seasonal variations in the butterfly species abundance varied with the flowering pattern of L. camara. A positive correlation of different butterfly species with the flowering time and number of L. camara was for all the sites. The segregation of the L. camara associated butterfly species was made following discriminant function analysis using the extent of flower density of L. camara as explanatory variable. Despite being an invasive species, it is apparent that L. camara can be a prospective host plant that facilitates sustenance of butterflies in both urban and rural sites. Thus, existence of L. camara in urban gardens and forests may prove beneficial in sustenance of the butterflies.

  9. LANTANA CAMARA: OVERVIEW ON TOXIC TO POTENT MEDICINAL PROPERTIES

    OpenAIRE

    Dr. Milindmitra K Lonare et al

    2012-01-01

    Lantana camara is more popular as toxic weed rather than medicinal plant in most of the countries responsible for infesting pastures, grazing lands, orchards and crops like, tea, coffee, oil palm, coconut and cotton, and reduces the economic viability of the crops. This plant can grow in even in extreme harsh climatic conditions of tropical and sub-tropical areas and has become naturalized worldwide as an ornamental plant including India. The stem, root and leaves contain many of the bioactiv...

  10. LANTANA CAMARA: OVERVIEW ON TOXIC TO POTENT MEDICINAL PROPERTIES

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    Dr. Milindmitra K Lonare et al

    2012-09-01

    Full Text Available Lantana camara is more popular as toxic weed rather than medicinal plant in most of the countries responsible for infesting pastures, grazing lands, orchards and crops like, tea, coffee, oil palm, coconut and cotton, and reduces the economic viability of the crops. This plant can grow in even in extreme harsh climatic conditions of tropical and sub-tropical areas and has become naturalized worldwide as an ornamental plant including India. The stem, root and leaves contain many of the bioactive compounds responsible for various therapeutic applications such as cancers, chicken pox, measles, asthma, ulcers, swellings, eczema, tumors, high blood pressure, bilious fevers, catarrhal infections, tetanus, rheumatism, malaria, antiseptic, antispasmodic, carminative and diaphoretic. Besides this, it has some toxic effect by accidental ingestion among the livestock. Best alternate uses of West Indian Lantana started by the people, as it is difficult to eradicate such as household furniture like tables, chairs etc. are made from the stalks.. Present review indicating that Lantana camara is a versatile ornamental plant species having economic importance and can be promoted for diversified applications like medicinal and other potential uses.

  11. Antioxidant activity of methanol extracts of different parts of Lantana camara

    Institute of Scientific and Technical Information of China (English)

    Badakhshan Mahdi-Pour; Subramanion L Jothy; Lachimanan Yoga Latha; Yeng Chen; Sreenivasan Sasidharan

    2012-01-01

    Objective: To investigate the antioxidant activity of methanolic extracts of Lantana camara (L. camara) various parts and the determination of their total phenolics content. Methods:The extract was screened for possible antioxidant activities by free radical scavenging activity(DPPH), xanthine oxidase inhibition activity and Griess-Ilosvay method. Results:The results showed that all the plant parts possessed antioxidant properties including radical scavenging, xanthine oxidase inhibition and nitrites scavenging activities. The antioxidative activities were correlated with the total phenol. The leaves extract of L. camara was more effective than that of other parts. Conclusions: This study suggests that L. camara extracts exhibit great potential for antioxidant activity and may be useful for their nutritional and medicinal functions.

  12. Global Invasion of Lantana camara: Has the Climatic Niche Been Conserved across Continents?

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    Estefany Goncalves; Ileana Herrera; Milén Duarte; Bustamante, Ramiro O.; Margarita Lampo; Grisel Velásquez; Sharma, Gyan P.; Shaenandhoa García-Rangel

    2014-01-01

    Lantana camara, a native plant from tropical America, is considered one of the most harmful invasive species worldwide. Several studies have identified potentially invasible areas under scenarios of global change, on the assumption that niche is conserved during the invasion process. Recent studies, however, suggest that many invasive plants do not conserve their niches. Using Principal Components Analyses (PCA), we tested the hypothesis of niche conservatism for L. camara by comparing its na...

  13. Microbiología pulpar de dientes íntegros con lesiones apicales de origen idiopático

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    Patricia Rodríguez

    2008-03-01

    Full Text Available Introducción: Los cambios periapicales denominados lesiones, en dientes con integridad coronal completa y sin antecedentes de trauma, no presentan una etiología clara. Objetivo: Determinar la presencia de microorganismos en el tejido pulpar clarifica las causas de su muerte y el consiguiente daño a los tejidos periodontalesMateriales y métodos: Se seleccionaron 23 dientes, en personas con rangos de edad entre 10 y 39 años. Las muestras se tomaron con puntas de papel y limas Nº 0.8 (estériles, se transportaron en VMGA III, se procesaron en las siguientes 24 horas de tomada la muestra y se sembraron en agar brucella. Resultados: Los dientes más afectados fueron los centrales superiores 43.8%. De los 23 dientes estudiados, en 20 se observó crecimiento microbiológico. Se identificaron los siguientes microorganismos: Fusobacterium spp., 25%; Eubacte-rium spp., 15%; Peptostreptococcus spp., 10%; Campylobacter spp., 10%; bacilos entéricos gram negativos, 10%; Porphyromonas gingivalis, 10%; Prevotella intermedia, 5%; Eikenellia corrodens, 5%; Dialister pneumosintes, 5%; y levaduras en 5%. No hubo evidencias de crecimiento de Actinomyces actinomycetemcomitans, Tanerella forsythensis ni de estreptococo b hemolítico.Discusión y conclusiones: El tejido pulpar sano es estéril, la lesión sobre él causa inflamación degeneración, muerte pulpar y contaminación bacteriana. Los resultados en el presente estudio determinaron claramente la presencia de micro-organismos en lesiones apicales cerradas de origen endodóntico. De igual forma se evidencia que gran parte de los microorganismos que se encontraron son considerados periodontopatógenos lo que puede igualmente sugerir manejo compartido entre tratamiento endodóntico, periodontal y farmacológico.

  14. El Surco Palato Radicular: Su relación con patología pulpar y/o periodontal

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    R.M. Pulgar Encinas; B. Noguerol Rodriguez

    2000-01-01

    La presencia de anomalías morfológicas radiculares pueden actuar como factor predisponente para el acúmulo de placa y el desarrollo de patología periodontal y/o pulpar. Presentamos un caso clínico de surco palatoradicular en el 21, donde la presencia del surco ha sido el factor causal de una bolsa periodontal con defecto óseo aislado que finalmente condujo a la pérdida del diente. Se analiza la prevalencia, localizaciones, patogenia y la actitud terapéutica correcta ante la presencia de este ...

  15. Microbiología pulpar de dientes íntegros con lesiones apicales de origen idiopático

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    Patricia Rodríguez; Jesús Alberto Calero

    2008-01-01

    Introducción: Los cambios periapicales denominados lesiones, en dientes con integridad coronal completa y sin antecedentes de trauma, no presentan una etiología clara. Objetivo: Determinar la presencia de microorganismos en el tejido pulpar clarifica las causas de su muerte y el consiguiente daño a los tejidos periodontalesMateriales y métodos: Se seleccionaron 23 dientes, en personas con rangos de edad entre 10 y 39 años. Las muestras se tomaron con puntas de papel y limas Nº 0.8 (estériles)...

  16. Characterization of patient’s inflammatory pulpal diseases. Caracterización de pacientes con afecciones pulpares inflamatorias

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    Ana Isabel Palenque Guillemí

    2008-06-01

    Full Text Available Background: Pulpal diseases are the most common entities in the dentist emergency consultation. For a correct indication of the treatment, it is very important to establish an accurate diagnosis. Objective: to characterize carrier patients with inflammatory pulpal disease. Methods: a descriptive, prospective cases series study which included 222 patients who came to the dentistry emergency consultation in Area I health policlinic. Age, type of disease, cause, more implicated teeth in the disease, visits, and previous treatments were the variables included. Results: there was no difference at all regarding sex. The most affected group of age was from 35 to 59 years old. The inferior molars were the most affected teeth. The main cause was dental cavities. Obturation was the previous treatment more presented. 46% of the patients attended the dentist in more than one occasion with the same process. Acute irreversible pulpitis was the most predominant pulpal disease. Conclusions: The most common pulpal diseases in our milieu was the acute irreversible pulpitis among the ages 35 and 59 years old.
    Fundamento: Las afecciones pulpares son las enfermedades que más llevan a los pacientes a una consulta de urgencia estomatológica. En estos casos, para una correcta indicación de tratamiento, es de suma importancia el establecimiento de un diagnóstico preciso. Objetivo: Caracterizar pacientes portadores de afectaciones pulpares inflamatorias. Métodos: Estudio descriptivo, prospectivo de serie de casos que incluyó 222 pacientes que asistieron a consulta de urgencia estomatológica en la policlínica del Área 1. Se incluyeron las siguientes variables: edad, tipo de afectación, causa, dientes más afectados, visitas y tratamientos previos. Resultados: No hubo diferencias en cuanto al sexo, el

  17. Conservación de la vitalidad pulpar en un diente con pulpa expuesta por más de tres días

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    Elva Zayas Sánchez

    2014-08-01

    Full Text Available Se describe la importancia del correcto tratamiento de dientes traumatizados para conservar la vitalidad pulpar y lograr el cierre apical. La paciente de 8 años acudió a consulta con fractura complicada de corona del 21 a nivel cervical, la pulpa había estado expuesta por más de tres días también presentaba fractura no complicada de corona en el 11. Los Rx mostraron formación apical incompleta y ápices abierto en ambos dientes. Se realizó una técnica de amputación pulpar y reconstrucción del diente con un pin y resina fotopolimerizable en el 21 y recubrimiento pulpar indirecto en el 11. Después de un año de realizado el tratamiento se corroboró la conservación de la vitalidad pulpar y cierre apical en ambos dientes

  18. El Surco Palato Radicular: Su relación con patología pulpar y/o periodontal

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    R.M. Pulgar Encinas

    2000-09-01

    Full Text Available La presencia de anomalías morfológicas radiculares pueden actuar como factor predisponente para el acúmulo de placa y el desarrollo de patología periodontal y/o pulpar. Presentamos un caso clínico de surco palatoradicular en el 21, donde la presencia del surco ha sido el factor causal de una bolsa periodontal con defecto óseo aislado que finalmente condujo a la pérdida del diente. Se analiza la prevalencia, localizaciones, patogenia y la actitud terapéutica correcta ante la presencia de este tipo de anomalías, en base a los datos recogidos de la literatura.The presence of radicular anomalies may act as a predisposing factor for the accumulation of bacterial plaque and the development of local periodontal or pulpal disease. We present a case of palato-radicular groove in tooth Nº.21 that caused periodontal pocket and localized bone defect leading to loss of the tooth. We review the prevalence, localizations and pathogenesis of this dental abnormality as well as therapeutic approaches reported in the literature. The palato-radicular groove:relationship with pulpar and/or periodontal desease.

  19. Chemical Characterization and Trypanocidal, Leishmanicidal and Cytotoxicity Potential of Lantana camara L. (Verbenaceae Essential Oil

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    Luiz Marivando Barros

    2016-02-01

    Full Text Available Drug resistance in the treatment of neglected parasitic diseases, such as leishmaniasis and trypanosomiasis, has led to the search and development of alternative drugs from plant origins. In this context, the essential oil extracted by hydro-distillation from Lantana camara leaves was tested against Leishmania braziliensis and Trypanosoma cruzi. The results demonstrated that L. camara essential oil inhibited T. cruzi and L. braziliensis with IC50 of 201.94 μg/mL and 72.31 μg/mL, respectively. L. camara essential oil was found to be toxic to NCTC929 fibroblasts at 500 μg/mL (IC50 = 301.42 μg/mL. The composition of L. camara essential oil analyzed by gas chromatography–mass spectrometry (GC/MS revealed large amounts of (E-caryophyllene (23.75%, biciclogermacrene (15.80%, germacrene D (11.73%, terpinolene (6.1%, and sabinene (5.92%, which might be, at least in part, responsible for its activity. Taken together, our results suggest that L. camara essential oil may be an important source of therapeutic agents for the development of alternative drugs against parasitic diseases.

  20. Uso de novos materiais para o capeamento pulpar (hidroxiapatita - HAp e fosfato tricálcico - β-TCP) The use of new materials for pulp capping (hydroxyapatite - HAp and tricalcium phosphate - β-TCP)

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    C. S. Delfino; Ribeiro, C.; G. F. Vieira; A. H. A. Bressiani; M. L. Turbino

    2010-01-01

    O capeamento pulpar é uma medida importante e muito usada no cotidiano da prática odontológica e, quando realizado de forma consciente, baseado em um bom diagnóstico da condição pulpar no momento da exposição, pode prevenir o dente de sofrer uma intervenção endodôntica. Além do hidróxido de cálcio, outros materiais vêm sendo testados quanto a sua ação em promover o reparo pulpar pela formação de ponte de dentina, após capeamento pulpar direto. Uma das alternativas de materiais viáveis para o ...

  1. Phytochemical screening and antimicrobial activities of plant extract of Lantana camara.

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    Pradeep, B Vishwanath; Tejaswini, M; Nishal, P; Pardhu, G; Shylaja, S; Kumar, Kranthi Ch

    2013-05-01

    Natural products continue to play an important role in the discovery and development of new pharmaceuticals. Several chemical compounds have been extracted and identified from its species known as Lantana camara (L .camara). The present study was designed for phytochemical analysis of L. camara and extraction of bioactive compound by HPLC. This also included the antimicrobial activity of the bioactive compound obtained by crude extract and the column extract. The study showed the presence of the bioactive component parthenin extracted from the HPLC analysis at a peak height of 10.3807 and it was showing antimicrobial activity against E. coli, P. aeruginosa, B. subtilis and E. fecalis, crude (6.8 to 8.1 mm ) and column (4.0 to 6.2 mm) zone of inhibition. PMID:24617153

  2. The Chemical Diversity of Lantana camara: Analyses of Essential Oil Samples from Cuba, Nepal, and Yemen.

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    Satyal, Prabodh; Crouch, Rebecca A; Monzote, Lianet; Cos, Paul; Awadh Ali, Nasser A; Alhaj, Mehdi A; Setzer, William N

    2016-03-01

    The aerial parts of Lantana camara L. were collected from three different geographical locations: Artemisa (Cuba), Biratnagar (Nepal), and Sana'a (Yemen). The essential oils were obtained by hydrodistillation and analyzed by gas chromatography/mass spectrometry. A cluster analysis of 39 L. camara essential oil compositions revealed eight major chemotypes: β-caryophyllene, germacrene D, ar-curcumene/zingiberene, γ-curcumen-15-al/epi-β-bisabolol, (E)-nerolidol, davanone, eugenol/alloaromadendrene, and carvone. The sample from Cuba falls into the group dominated by (E)-nerolidol, the sample from Nepal is a davanone chemotype, and the sample from Yemen belongs to the β-caryophyllene chemotype. The chemical composition of L. camara oil plays a role in the biological activity; the β-caryophyllene and (E)-nerolidol chemotypes showed antimicrobial and cytotoxic activities. PMID:26917060

  3. Climate Warming May Facilitate Invasion of the Exotic Shrub Lantana camara

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    Zhang, Qiaoying; Zhang, Yunchun; Peng, Shaolin; Zobel, Kristjan

    2014-01-01

    Plant species show different responses to the elevated temperatures that are resulting from global climate change, depending on their ecological and physiological characteristics. The highly invasive shrub Lantana camara occurs between the latitudes of 35°N and 35°S. According to current and future climate scenarios predicted by the CLIMEX model, climatically suitable areas for L. camara are projected to contract globally, despite expansions in some areas. The objective of this study was to test those predictions, using a pot experiment in which branch cuttings were grown at three different temperatures (22°C, 26°C and 30°C). We hypothesized that warming would facilitate the invasiveness of L. camara. In response to rising temperatures, the total biomass of L. camara did increase. Plants allocated more biomass to stems and enlarged their leaves more at 26°C and 30°C, which promoted light capture and assimilation. They did not appear to be stressed by higher temperatures, in fact photosynthesis and assimilation were enhanced. Using lettuce (Lactuca sativa) as a receptor plant in a bioassay experiment, we also tested the phytotoxicity of L. camara leachate at different temperatures. All aqueous extracts from fresh leaves significantly inhibited the germination and seedling growth of lettuce, and the allelopathic effects became stronger with increasing temperature. Our results provide key evidence that elevated temperature led to significant increases in growth along with physiological and allelopathic effects, which together indicate that global warming facilitates the invasion of L. camara. PMID:25184224

  4. Climate warming may facilitate invasion of the exotic shrub Lantana camara.

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    Qiaoying Zhang

    Full Text Available Plant species show different responses to the elevated temperatures that are resulting from global climate change, depending on their ecological and physiological characteristics. The highly invasive shrub Lantana camara occurs between the latitudes of 35 °N and 35 °S. According to current and future climate scenarios predicted by the CLIMEX model, climatically suitable areas for L. camara are projected to contract globally, despite expansions in some areas. The objective of this study was to test those predictions, using a pot experiment in which branch cuttings were grown at three different temperatures (22 °C, 26 °C and 30 °C. We hypothesized that warming would facilitate the invasiveness of L. camara. In response to rising temperatures, the total biomass of L. camara did increase. Plants allocated more biomass to stems and enlarged their leaves more at 26 °C and 30 °C, which promoted light capture and assimilation. They did not appear to be stressed by higher temperatures, in fact photosynthesis and assimilation were enhanced. Using lettuce (Lactuca sativa as a receptor plant in a bioassay experiment, we also tested the phytotoxicity of L. camara leachate at different temperatures. All aqueous extracts from fresh leaves significantly inhibited the germination and seedling growth of lettuce, and the allelopathic effects became stronger with increasing temperature. Our results provide key evidence that elevated temperature led to significant increases in growth along with physiological and allelopathic effects, which together indicate that global warming facilitates the invasion of L. camara.

  5. Lantana camara berry for the synthesis of silver nanoparticles

    Institute of Scientific and Technical Information of China (English)

    Brajesh; Kumar; Kumari; Smita; Luis; Cumbal; Alexis; Debut

    2015-01-01

    Objective:To synthesize the silver nunoparticles(AgNPs) by reduction of silver ions into nano silver,using ripened berry extract of Lantana camara and evaluate its antioxidant activity against 1.1-diphenyl-2- picrylhydrazyl.Methods:The prepared AgNPs were characterized by visual,UV-visible spectrophotometer.dynamic light scattering and transmission electron microscopy with selected area electron diffraction.Results:Transmission electron microscopy and dynamic light scattering analysis confirmed the AgNPs are spherical and 75.2 nm average sized.Selected area electron diffraction analysis supports that the obtained nanoparticles were in crystalline form.In addition,the antioxidant efficacy of prepared AgNPs was found to be higher than berry extract against 1.1-diphenyl-2-picrylhydrazyl.Conclusions:From the results obtained it is suggested that surface modified AgNPs at lower concentration,showed higher antioxidant activity than berry extract against 1,1-diphenyl-2-picrylhydrazyl and could be used effectively in future ethno pharmacological concerns.

  6. Bioactivity of Lantana camara L. essential oil against Callosobruchus maculatus (Fabricius Bioactividad de aceite esencial de Lantana camara L. contra Callosobruchus maculatus (Fabricius

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    Nooshin Zandi-Sohani

    2012-12-01

    Full Text Available Lantana camara L. is a widespread plant species mostly native to subtropical and tropical regions of the world. In this study, insecticidal and repellent activities of L. camara essential oil were evaluated against Callosobruchus maculatus (Fabricius (Col: Bruchidae. Analysis of chemical composition by gas chromatography/mass spectrometry (GC/MS showed high amounts of sesquiterpenes, mainly α-humelene (23.3% and cis-caryophyllene (16.2%. The results showed that the essential oil of L. camara has strong repellent activity against adults of C. maculatus at all tested concentrations. After 2 and 4 h, 97.4 and 100% repellency was seen at highest concentrations of 0.4 μL cm-2, respectively. Moreover, the oil was found to be toxic to adults when applied by fumigation. Responses varied with the gender of insect and exposure time. The LC50 values were 282.7 and 187.9 μL L-1 for females and males, respectively. An increase in the exposure time from 3 to 24 h caused increasing in mortality from 23.6 to 100% in males and from 14.1 to 97.1% in females, at highest concentration (1160 μL L-1. According to these results, L. camara essential oil may be useful as an alternative for bean protection against C. maculatus.Lantana camara L. es una especie vegetal nativa de las regiones subtropicales y tropicales del mundo. En este estudio se evaluaron las actividades insecticida y repelente del aceite esencial de L. camara contra Callosobruchus maculatus (Fabricius. El análisis de la composición volátil de este aceite esencial mediante cromatografía de gas/ espectrometría de masa (GC/MS demostró la presencia de elevadas cantidades de sesquiterpenos, principalmente α-humuleno (23.3% y ci's-cariofileno (16.2%. Los resultados obtenidos demostraron que el aceite esencial de L. camara tiene una elevada actividad repelente contra los adultos de C. maculatus a todas las concentraciones ensayadas. Después de 2 y 4 h la concentración de 0.4 μL cm-2 causó 97

  7. Climate change and the potential distribution of an invasive shrub, Lantana camara L.

    Directory of Open Access Journals (Sweden)

    Subhashni Taylor

    Full Text Available The threat posed by invasive species, in particular weeds, to biodiversity may be exacerbated by climate change. Lantana camara L. (lantana is a woody shrub that is highly invasive in many countries of the world. It has a profound economic and environmental impact worldwide, including Australia. Knowledge of the likely potential distribution of this invasive species under current and future climate will be useful in planning better strategies to manage the invasion. A process-oriented niche model of L. camara was developed using CLIMEX to estimate its potential distribution under current and future climate scenarios. The model was calibrated using data from several knowledge domains, including phenological observations and geographic distribution records. The potential distribution of lantana under historical climate exceeded the current distribution in some areas of the world, notably Africa and Asia. Under future scenarios, the climatically suitable areas for L. camara globally were projected to contract. However, some areas were identified in North Africa, Europe and Australia that may become climatically suitable under future climates. In South Africa and China, its potential distribution could expand further inland. These results can inform strategic planning by biosecurity agencies, identifying areas to target for eradication or containment. Distribution maps of risk of potential invasion can be useful tools in public awareness campaigns, especially in countries that have been identified as becoming climatically suitable for L. camara under the future climate scenarios.

  8. Revisión de los factores de riesgo de afectación pulpar con la utilización del instrumental rotatorio

    OpenAIRE

    Giner Tarrida, Lluís; Gallego, B.; Cortada Colomer, Miquel; Llombart Jaques, Daniel

    1992-01-01

    En esta comunicación se efectúa una revisión de la bibliografía acerca de los factores que influyen en la respuesta pulpar en los tratamientos odontológicos que conllevan la utilización de instrumental rotatorio diamantado así como una experiencia de laboratorio comparando la eficacia del refrigerante de spray aire-agua y el de aire solo.

  9. Green synthesis and characterization of silver nanoparticles using Lantana camara leaf extract

    Energy Technology Data Exchange (ETDEWEB)

    Ajitha, B., E-mail: ajithabondu@gmail.com [Department of Physics, Sri Venkateswara University, Tirupati 517502 (India); Ashok Kumar Reddy, Y. [Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, 335 Gwahangno, Yuseong-gu, Daejeon 305-701 (Korea, Republic of); Sreedhara Reddy, P. [Department of Physics, Sri Venkateswara University, Tirupati 517502 (India)

    2015-04-01

    In this work, we have investigated on Lantana camara mediated silver nanoparticles (AgNPs) with different leaf extract (LE) quantity for the evaluation of efficient bactericidal activity. The AgNPs were prepared by simple, capable, eco-friendly and biosynthesis method using L. camara LE. This method allowed the synthesis of crystalline nanoparticles, which was confirmed by X-ray diffraction (XRD) and selected area electron diffraction (SAED) patterns. The X-ray photoelectron spectroscopy (XPS) analysis confirmed the formation of metallic silver and elucidates the surface state composition of AgNPs. UV–vis spectra of AgNPs and visual perception of brownish yellow color from colorless reaction mixture confirmed the AgNP formation. Involvement of functional groups of L. camara leaf extract in the reduction and capping process of nanoparticles was well displayed in Fourier transform infrared spectroscopy (FTIR). Decrement of particle size with an increment of leaf extract volume was evident in AFM, TEM images and also through a blue shift in the UV–vis spectra. The rate of formation and size of AgNPs were dependent on LE quantity. Meanwhile, these AgNPs exhibited effective antibacterial activity with the decrement of particle size against all tested bacterial cultures. - Highlights: • Monodispersed AgNPs are synthesized using L. camara leaf extract. • The higher the L. camara content, the smaller the particle size. • Green synthesized AgNPs are found to be photoluminescent. • Size dependence of antibacterial activity is reported. • The nanoparticle stability is improved by leaf extract quantity.

  10. MTA and calcium hydroxide for pulp capping MTA e hidróxido de cálcio para proteção pulpar direta

    Directory of Open Access Journals (Sweden)

    Alexandra Mussolino de Queiroz

    2005-06-01

    Full Text Available This study evaluated the biocompatibility of mineral trioxide aggregate (MTA after direct capping of exposed pulp tissue in dog's teeth. Class I cavities were prepared in 26 teeth from 3 adult dogs. MTA was applied over the exposed pulp in 13 teeth and paste of calcium hydroxide plus distilled water (control was applied in the remaining 13 teeth. After 90 days, the animals were killed; the maxilla and mandible were dissected and sectioned to obtain individual roots. The samples were processed histologically. The pulp and periapical response observed with the use of MTA was similar to that of calcium hydroxide paste. In all specimens, there was a dentin bridge obliterating the exposure, an intact odontoblastic layer, no inflammatory cells, normal connective pulp tissue, normal apical and periapical regions and no bone tissue changes. Similar to calcium hydroxide, MTA presented excellent response when used for direct pulp capping.O objetivo deste trabalho foi avaliar a biocompatibilidade do agregado de trióxido mineral (MTA, após proteção pulpar direta em dentes de cães. Foram preparadas cavidades de Classe I, em 26 dentes de 3 cães adultos. O MTA foi aplicado sobre 13 dentes e a pasta de hidróxido de cálcio (grupo controle foi aplicada sobre os 13 dentes remanescentes. Após 90 dias, os animais foram mortos, a maxila e a mandíbula foram dissecadas e os dentes foram seccionados para obtenção de raízes individualizadas. Os espécimes foram processados histologicamente. A resposta do tecido pulpar e periapical foi semelhante para o MTA e o hidróxido de cálcio. Em todos os espécimes havia ponte de dentina obliterando o local da exposição pulpar, camada odontoblástica íntegra, ausência de células inflamatórias, tecido pulpar normal, e ausência de alterações na região periapical e óssea. Da mesma maneira que o hidróxido de cálcio, o MTA apresentou excelente biocompatibilidade quando usado para proteção pulpar direta.

  11. Evaluation of the temperature rise in pulp chamber during class V preparation with Er:YAG laser; Avaliacao da temperatura na camara pulpar durante preparo classe V com laser de Erbio:YAG

    Energy Technology Data Exchange (ETDEWEB)

    Picinini, Leonardo Santos

    2001-07-01

    One of the major concerns regarding laser irradiation in the dentistry field is the overheating in dental tissue, specially pulpal tissue. A temperature raise over 5.5 deg C is considered to be harmful to its vitality. The current study evaluated the temperature increase in the pulp chamber, during class V preparation, performed with the laser Er:YAG in 36 bovine incisive extracted teeth. The samples were eroded on the outer side of the vestibular wall to obtain the dentinal thickness of 2.0 mm (group I), 1.0 mm (group II) and 0.5 mm (group III). Thermocouples were fixed to the inner part of the vestibular wall using thermal paste, through the palatine opening of the samples. Class V cavities were prepared in the vestibular side only in 1 mm{sup 2} thick dentins. Irradiation parameters used were: 500 mJ/10 Hz, 850 mJ/10 Hz and 1 000 mJ/10 Hz for all the groups. The results were processed by a microcomputer. This study showed that the temperature increased into the pulpal cavity reached around 3 deg C for the groups I (2,0 mm thick dentine) and II (1.0 mm thick dentine). In the group III (0.5 mm thick) temperature was around 5.5 deg C. Thus, the parameters used for cavity preparation, using Er:YAG laser, were safe in relation to the temperature raise for dentinal thickness of 1,0 and 2,0 mm; in 0.5 mm thick dentins, temperature increase reached 5.5 deg C and an appropriate correction in the laser parameters was necessary. (author)

  12. Evaluation in vitro of pulpal chamber temperature of deciduous teeth during Er:YAG laser application; Avaliacao in vitro da temperatura na camara pulpar de dentes deciduos durante aplicacao do laser de Er:YAG

    Energy Technology Data Exchange (ETDEWEB)

    Sznajder, Alexandre Joseph

    2001-07-01

    The Er:YAG laser technology has been thoroughly studied, since its invention, and has been increasingly recommended in Dentistry. However, its use in deciduous teeth has not been deserving the equivalent attention to its counterpart in permanent teeth, despite of the deciduous teething occur in a phase of life in which it has a far more importance than its substitutes. For that reason, this study aims to identify the suitable parameters to the clinic procedures in deciduous teeth, using the already established protocols in permanent teeth. The study was lead in a way to resemble the most the conditions of the clinical use of the laser. Five groups were analyzed using different energy densities and repetition rates. Each group was composed of 10 first superior right deciduous molars randomly selected. The energy densities and repetition rates used for each group were: 60 mJ 15 Hz, 250 mJ 2 Hz, 250 mJ 15 Hz, 400 mJ 6 Hz and 500 mJ 2 Hz. The results obtained allowed us to conclude that the use of the Er:YAG laser in Odontopediatrics is effective, safe and secure and the main reason for its recommendation is the low transfer of heat to the adjacent tissues of the applied surfaces. (author)

  13. Vitalidade pulpar em dentes portadores de brackets ortodônticos: apresentação de uma técnica = Pulp vitality test on teeth having orthodontics brackets: technique presentation

    Directory of Open Access Journals (Sweden)

    Barletta, Fernando Branco

    2007-01-01

    Full Text Available O presente trabalho teve como objetivo avaliar a confiabilidade do teste de vitalidade pulpar com o gás refrigerante tetrafluoretano (CS 68 em dentes portadores de brackets ortodônticos. Foram selecionados 37 pacientes de clínica privada, com faixa etária entre 12 e 60 anos de idade. O teste de vitalidade pulpar foi realizado na face palatina ou lingual, na região de terço médio dos dentes, abaixo do cíngulo, nos grupos dentários dos incisivos, caninos e pré-molares superiores e inferiores, totalizando 402 dentes. Quando a resposta de sensibilidade pulpar era negativa ao teste, o mesmo era repetido; confirmando-se o resultado como negativo, realizavase uma tomada radiográfica pela técnica periapical do dente em questão. Os resultados evidenciaram 4 elementos dentários com resposta negativa ao teste de vitalidade pulpar, sendo 3 pré-molares e um incisivo central. A resposta dos demais foi positiva ao teste. Diante dos resultados, verificou-se que a aplicação do teste de vitalidade pulpar pela face palatina em pacientes portadores de brackets ortodônticos constitui-se em uma alternativa segura e confiável

  14. Estudio sobre diferentes protocolos de irrigación y medicación intraconducto para la revascularización pulpar en dientes inmaduros y necróticos de perros beagle

    OpenAIRE

    Rodríguez Benítez, María Soledad

    2015-01-01

    La Endodoncia una de las técnicas más utilizadas en el día a día de la clínica dental, que consiste en la remoción del tejido pulpar inflamado y/o necrótico, la instrumentación mecánica, desinfección química del sistema de conductos radiculares, y su posterior obturación y sellado. La eliminación del tejido pulpar conlleva, pérdida de la sensibilidad pulpar, anulación de la capacidad de producir dentina y detención del desarrollo radicular. Por ello, se deben realizar todos los esfuerzo...

  15. Anxiolytic potential of ursolic acid derivative-a stearoyl glucoside isolated from Lantana camara L. (verbanaceae)

    Institute of Scientific and Technical Information of China (English)

    Imran Kazmi; Muhammad Afzal; Babar Ali; Zoheir A Damanhouri; Aftab Ahmaol; Firoz Anwar

    2013-01-01

    Objective: To investigate the anxiolytic activity of newly isolated compound by our lab called ursolic acid stearoyl glucoside (UASG) from the leaves of Lantana camara (L. camara). Methods:Column chromatography was used to isolate UASG. Anxiolytic potential was experimentally proved and demonstrated through Elevated plus-maze, Open field and light and dark test.Results:The UASG showed marked increased in time spent (%) and number of frequent movements made by animals in open arm of elevated plus-maze apparatus. In light and dark model, UASG produced marked increase in time spent by animal, number of crossing and reduced duration of immobility in light box. Conclusions: UASG showed significant increase in number of rearing, assisted rearing and number of square crossed in open field established test model. UASG showed its anxiolytic effect in dose dependent manner.

  16. Investigation of wound healing activity of Lantana camara L. in Sprague dawley rats using a burn wound model

    Directory of Open Access Journals (Sweden)

    B S Nayak

    2008-03-01

    Full Text Available Summary: Lantana camara is used in herbal medicine for the treatment of skin itches, as an antiseptic for wounds, and externally for leprosy and scabies. The objective of our study is to investigate burn wound healing activity of the leaf extract of L.camara in rats. The animals were divided into two groups of 6 each. The test group animals were treated with the ethanol extract of L. camara (100 mg kg-1 day-1 topically and the control group animals were left untreated. Healing was assessed by the rate of wound contraction, period of epithelialization. Antimicrobial activities of the extract against the specific microorganisms were assessed. The extract showed antimicrobial activity against Staphylococcus aureus, Klebsiella Pneumoniae and E.coli. Extract treated wounds were healed in about 21 days which is not distinct from the controls. Our data suggest that L.camara has antimicrobial activity but not wound healing promoting activity on burn wound.   Industrial relevance: Extensive work has been done on the L. camara and demonstrated the antimicrobial and fungicidal activity of its chemical constituents. Lantana oil is used for the treatment of skin itches and as an antiseptic for wounds. It has been used in folk medicine for the treatment of cancers, chicken pox, measles, ulcers, swellings, eczema. Our earlier work showed the healing activity on excision wound model. However, there is no data to support the wound healing activity of L. camara on burn wound. Hence, we have conducted the present study to explore the wound healing activity and the antimicrobial activities of L. camara against the specific microorganisms which generally infect burn wound.

  17. Endodoncia regenerativa: utilización de fibrina rica en plaquetas autóloga en dientes permanentes vitales con patología pulpar. Revisión narrativa de la literatura*

    OpenAIRE

    Tatiana Ramírez Giraldo; Henry Sossa Rojas

    2014-01-01

    Actualmente una de las mayores controversias en el tratamiento de dientes permanentes con diagnóstico de pulpitis está en la decisión de realizar una Terapia Pulpar Vital (TPV) o un tratamiento convencional de conductos. Diferentes estudios han reportado que se pueden obtener resultados previsibles mediante la realización de una TPV. El éxito del tratamiento dependerá de una adecuada comprensión de la  biología pulpar, un estricto protocolo de tratamiento y una adecuada selección del caso. Co...

  18. Uso de novos materiais para o capeamento pulpar (hidroxiapatita - HAp e fosfato tricálcico - β-TCP The use of new materials for pulp capping (hydroxyapatite - HAp and tricalcium phosphate - β-TCP

    Directory of Open Access Journals (Sweden)

    C. S. Delfino

    2010-12-01

    Full Text Available O capeamento pulpar é uma medida importante e muito usada no cotidiano da prática odontológica e, quando realizado de forma consciente, baseado em um bom diagnóstico da condição pulpar no momento da exposição, pode prevenir o dente de sofrer uma intervenção endodôntica. Além do hidróxido de cálcio, outros materiais vêm sendo testados quanto a sua ação em promover o reparo pulpar pela formação de ponte de dentina, após capeamento pulpar direto. Uma das alternativas de materiais viáveis para o capeamento pulpar são as cerâmicas à base de fosfatos de cálcio, destacando-se a hidroxiapatita (HAp e o fosfato tricálcico (β-TCP. Estes materiais não promovem a formação de área necrótica, característica da utilização do hidróxido de cálcio, são biocompatíveis e favorecem o reparo do tecido pulpar. Para avaliar os efeitos desses materiais no capeamento pulpar foi realizada esta revisão de literatura, abordando desde a resposta do tecido pulpar, até o protocolo para o uso clínico.Pulp capping is an important measure and one with a high rate of use in daily dental practice, and when it is conscientiously performed, based on good diagnosis of the pulp condition at the time of its exposure, it may prevent the tooth from requiring endodontic intervention. In addition to calcium hydroxide, other materials have been tested with regard to their action in promoting pulp repair by the formation of a dentin bridge after direct pulp capping. Some of the feasible alternative materials for pulp capping are calcium phosphate-based ceramics, with hydroxyapatite (HAp and tricalcium phosphate (β-TCP being outstanding. These materials do not promote formation of a necrotic area, characteristic of the use of calcium hydroxide, are biocompatible and favor pulp tissue repair. To evaluate the effects of these materials on pulp capping, this literature review was conducted, the approach being wide ranging in scope, from pulp response

  19. Phytochemical Characterization and in-vivo Anti-Malaria Activity of Lantana camara Leaf Extract

    Directory of Open Access Journals (Sweden)

    Gabi Baba

    2011-12-01

    Full Text Available The characteristic multi-drug resistant strains of Plasmodium to the existing anti-malaria has increase the global threat of malaria, couple with the wide medicinal application of Lantana camara in different countries and the literature of its use as anti-microbial, antifungal and insecticidal agents, and the quest for alternative anti-malaria this work look into the phytochemical screening, characterization and the In-vivo anti-malaria activity of the Lantana camara leaf extracts. The leaf extracts from plant were screened for phytochemicals and further FTIR characterized to correlate the routine qualitative phytochemical screening. In-vivo anti-plasmodia screening was carried out using 24 Swiss albino mice under laboratory conditions. The effectiveness of the aqueous and ethanolic extracts from the plant (L. camara was compared with standard drug Chloroquine. The result indicated the presence of Alkaloids, Cardiac glycosides and Saponins in the Petroleum ether, aqueous and ethanolic extracts. Carbohydrate in both aqueous and ethanolic extracts, while Flavonoids and steroids in petroleum ether and ethanolic extracts. Tannins and terpenoids were present in aqueous and ethanolic extracts respectively. The identified phytochemicals correlate with FTIR spectral analysis from the identified characteristic functional groups. In-vivo study showed that Chloroquine was 83% effective in clearing the parasites, while aqueous and ethanolic extracts were 38 and 76% effective respectively. The curative capacity indicated possible concentration and time-dependency. The ethanolic extract showed higher level of anti-malaria potential and has indicated some level of protection.

  20. Valoración histológica de la respuesta pulpar y hepática del formocresol y el hueso liofilizado en dientes de rata.

    OpenAIRE

    Alcaina Lorente, Maria Antonia

    2003-01-01

    Son varios los agentes que se han utilizado para las pulpotomías en dientes primarios, siendo el formocresol el más difundido. El objetivo de este estudio fue evaluar la respuesta pulpar en dientes de rata cuando el hueso liofilizado es usado como agente de pulpotomía y analizar los cambios histológicos del tejido hepático. La muestra de este estudio estaba formada por 60 ratas de raza Sprague-Dawley. El tratamiento se realizó en los primeros molares superiores, siendo un total de 120 d...

  1. Regulating mineralization rates of Tithonia diversifolia and Lantana camara prunings to improve phosphorus availability in calcareous soils

    OpenAIRE

    Y. Nuraini; N. Sukmawatie

    2014-01-01

    The effect of mixing of Tithonia diversifolia and Lantana camara prunings to improve synchronization between P released from the prunings with crop demand for P was studied in a laboratory and in a glasshouse. Tithonia diversifolia prunings (Td), Lantana camara prunings (Lc), and farmyard manure (Pk) were thoroughly mixed with the proportion (% of dry weight) of; 25Td +75 Lc ; 50Td +50 Lc ; 75Td +25 Lc ; 90Lc +10 Pk ; 45Td +45 +10 Lc Pk ; 100Td and 100Lc, and then mixed with 100 g of air-drie...

  2. Chemical Characterization of Volatile Compounds of Lantana camara L. and L. radula Sw. and Their Antifungal Activity

    OpenAIRE

    Juliana Lanna Passos; Luiz Claudio de Almeida Barbosa; Antonio Jacinto Demuner; Elson Santiago de Alvarenga; Cleiton Moreira da Silva; Robert Weingart Barreto

    2012-01-01

    A comparative study of the chemical composition of essential oils of two very similar species of the Verbenaceae family (Lantana camara and L. radula) revealed that the main components of essential oil of L. camara were germacrene-D (19.8%) and E-caryophyllene (19.7%), while those of L. radula were E-caryophyllene (25.3%), phytol (29.2%) and E-nerolidol (19.0%). We have hypothesized that the observed differences could contribute to the differentiated reaction of the two species of Lantana to ...

  3. Variation in antioxidant and antimicrobial activities in Lantana camara L. flowers in relation to extrac- tion methods

    Directory of Open Access Journals (Sweden)

    Madiha Manzoor

    2013-09-01

    Full Text Available Background. The present work was designed to appraise how different extraction solvents and techniques affect the extractability of antioxidant and antimicrobial components from Lantana camara (L. camard flowers. Material and methods. Four extraction solvents including 100% methanol, 80% methanol, 100% ethanol and 80% ethanol coupled with three extraction techniques namely stirring, microwave-assisted stirring and ultrasonic-assisted stirring employed to isolate extractable components from the flowers of L. camara. The extracts produced were evaluated for their antioxidant and antimicrobial attributes. Results and discussion. The yield of extractable components varied over a wide range 4.87-30.00% in relation to extraction solvent and techniques. The extracts produced contained considerable amounts of total phenolics (8.28-52.34 mg GAE/100 g DW and total flavonoids (1.24-7.88 mg CE/100 g DW. Furthermore, a promising antioxidant activity in terms of DPPH° scavenging, inhibition of linoleic acid peroxidation and reducing power, as well as antimicrobial potential of the extracts were recorded against the selected bacterial and fungal strains. Conclusions. It was concluded that both extraction solvent and techniques employed affected the antioxidant and antimicrobial attributes of the extracts from L. camara flowers. With few exceptions, overall methanolic extracts produced by ultrasonic-assisted stirring offered superior activities followed by the microwave-as- sisted stirring and then stirring. The results advocate the use of appropriate extraction strategies to recover potent antioxidant and antimicrobial agents from the flowers of L. camara for nutraceutical and therapeutic.

  4. WIND DIRECTION, pH and other data from ALMIRANTE CAMARA and ALMIRANTE SALDANHA from 1979-01-07 to 1979-12-11 (NODC Accession 8100468)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water depth and other station data collected from ALMIRANTE CAMARA, ALMIRANTE SALDANHA and other Platforms for one year. The data was collected between January 7,...

  5. Allelopathic Effect of Lantana camara L. Leaf Powder on Germination and Growth Behaviour of Maize, Zea mays Linn. and Wheat, Triticum turgidum Linn. Cultivars

    OpenAIRE

    Abiyu Enyew; Nagappan Raja

    2015-01-01

    Aim of the present study was to evaluate allelopathic effect of Lantana camara leaf powder on germination and growth behaviour of Zea mays and Triticum turgidum. The pot culture experiments were conducted at Botany laboratory, Tewodros campus, University of Gondar, Ethiopia from November 2012 to April 2013. The experimental design was Completely Randomized Block Design (CRBD) with three treatments and one control. The soil without adding L. camara leaf powder was considered as control (T0) an...

  6. Endodoncia regenerativa: utilización de fibrina rica en plaquetas autóloga en dientes permanentes vitales con patología pulpar. Revisión narrativa de la literatura*

    Directory of Open Access Journals (Sweden)

    Tatiana Ramírez Giraldo

    2014-07-01

    Full Text Available Actualmente una de las mayores controversias en el tratamiento de dientes permanentes con diagnóstico de pulpitis está en la decisión de realizar una Terapia Pulpar Vital (TPV o un tratamiento convencional de conductos. Diferentes estudios han reportado que se pueden obtener resultados previsibles mediante la realización de una TPV. El éxito del tratamiento dependerá de una adecuada comprensión de la  biología pulpar, un estricto protocolo de tratamiento y una adecuada selección del caso. Con este fin, diferentes materiales han sido sugeridos. Recientemente se ha utilizado la Fibrina Rica en Plaquetas, biomaterial que cumple con propiedades biológicas para lograr una mayor rapidez y adecuada cicatrizacion del tejido. Es necesario desarrollar tratamientos dirigidos a preservar la vitalidad de la pulpa, evitando recurrir como primera opción al tratamiento convencional de conductos, teniendo como objetivo conservar o regenerar el complejo dentino pulpar.

  7. Long-Term Environmental Correlates of Invasion by Lantana camara (Verbenaceae) in a Seasonally Dry Tropical Forest

    OpenAIRE

    Ramaswami, Geetha; Sukumar, Raman

    2013-01-01

    Invasive species, local plant communities and invaded ecosystems change over space and time. Quantifying this change may lead to a better understanding of the ecology and the effective management of invasive species. We used data on density of the highly invasive shrub Lantana camara (lantana) for the period 1990–2008 from a 50 ha permanent plot in a seasonally dry tropical forest of Mudumalai in southern India. We used a cumulative link mixed-effects regression approach to model the transiti...

  8. Variation in antioxidant and antimicrobial activities in Lantana camara L. flowers in relation to extrac- tion methods

    OpenAIRE

    Madiha Manzoor; Farooq Anwar; Bushra Sultana; Muhammad Mushtaq

    2013-01-01

    Background. The present work was designed to appraise how different extraction solvents and techniques affect the extractability of antioxidant and antimicrobial components from Lantana camara (L. camard) flowers. Material and methods. Four extraction solvents including 100% methanol, 80% methanol, 100% ethanol and 80% ethanol coupled with three extraction techniques namely stirring, microwave-assisted stirring and ultrasonic-assisted stirring employed to isolate extractable components from t...

  9. Regulating mineralization rates of Tithonia diversifolia and Lantana camara prunings to improve phosphorus availability in calcareous soils

    Directory of Open Access Journals (Sweden)

    Y. Nuraini

    2014-01-01

    Full Text Available The effect of mixing of Tithonia diversifolia and Lantana camara prunings to improve synchronization between P released from the prunings with crop demand for P was studied in a laboratory and in a glasshouse. Tithonia diversifolia prunings (Td, Lantana camara prunings (Lc, and farmyard manure (Pk were thoroughly mixed with the proportion (% of dry weight of; 25Td +75 Lc ; 50Td +50 Lc ; 75Td +25 Lc ; 90Lc +10 Pk ; 45Td +45 +10 Lc Pk ; 100Td and 100Lc, and then mixed with 100 g of air-dried soil with a rate equivalent to 100 kg P / ha. Results of the study showed that the pruning mixtures decomposed and mineralized faster than that of Lantana camara pruning only, but slower than that of Tithonia diversifolia pruning only. The amount of P released from the pruning mixtures increased with increasing proportion of Tithonia diversifolia pruning in the mixtures. Increasing proportion of Tithonia diversifolia pruning in the mixture applied to the soil increased the amount of P taken up by maize.

  10. In vitro antioxidant and DNA damage inhibition activity of aqueous extract of Lantana camara L. (Verbenaceae) leaves

    Institute of Scientific and Technical Information of China (English)

    Kokati Venkata Bhaskara Rao

    2012-01-01

    Objective: To investigate the in vitro antioxidant and DNA damage inhibition potential of aqueous extract of Lantana camara leaves. Methods: Antioxidant activity of the aqueous extract of L. camara was estimated by 2, 2-diphenyl-1-picrylhydrazyl radical scavenging assay, metal chelating activity and reducing power assay. DNA damage inhibition was performed by photolysing H2O2 by UV radiation in the presence of pBR322 and extract. Estimation of phenolic content was carried out by Folin-Ciocalteau assay. Results: Extract exhibited high antioxidant activity in DPPH radical scavenng assay (IC50= 42.66 μg/ml), metal chelating activity (IC50= 1036.4μg/ml) and reducing power assay. Extract also exhibited the complete protection of pBR322 plasmid DNA during DNA damage inhibition assay. Extract showed high phenolic content which justified the antioxidant and DNA damage inhibition properties of the plant. Conclusions:These observations emphasize that aqueous extract of L. camara possess high antioxidant and DNA damage inhibition potential, thus, the plant can be used to develop natural antioxidant compounds for therapeutic use.

  11. Factors influencing the local scale colonisation and change in density of a widespread invasive plant species, Lantana camara, in South India

    Directory of Open Access Journals (Sweden)

    Bharath Sundaram

    2015-04-01

    Full Text Available Identifying factors that underlie invasive species colonisation and change in density could provide valuable insights into the mechanisms of biological invasions and for invasive species management. We examined a suite of factors potentially influencing the landscape-level invasion of Lantana camara L., one of the most ubiquitous invasive species in South Asia. These factors included disturbance factors like forest fires, historical habitat modification, and edge effects, in addition to factors like propagule pressure and habitat suitability. We examined the relative importance of these factors on the colonisation and change in density of L. camara in the Biligiri Rangaswamy Temple Tiger Reserve, Western Ghats, India. We used extensive (1997–2008 datasets tracking the presence and abundance of L. camara and combined these with corresponding data on disturbances, propagule pressure, and habitat suitability. We used an information-theoretic model selection approach to determine the relative importance of each factor on the colonisation and change in density of L. camara. Colonisation was mainly a function of proximity to already established populations (i.e. propagule pressure, whereas increase in L. camara density appeared to be constrained by high fire frequency. Research and management efforts need to recognize the multi-dimensional nature of mechanisms underlying L. camara’s success during different invasion phases when strategizing interventions to mitigate its effects.

  12. Revascularización pulpar en dientes permanentes con ápice abierto por medio de la utilización de plasma rico en plaquetas en combinación con soportes de colágeno tipo I. : estudio descriptivo

    OpenAIRE

    Bustos Orozco, Ingrid Lorena

    2014-01-01

    La revascularización pulpar es el procedimiento enmarcado dentro de la endodoncia regenerativa, con el fin de lograr el cierre apical, engrosamiento de las paredes dentinales y la resolución apical producto de una patología pulpar y/o periapical en dientes inmaduros. La endodoncia regenerativa busca regenerar y no reparar, está basada en tres componentes principales: las células madre, que pueden diferenciarse en células implicadas en el desarrollo radicular; los factores de cr...

  13. Sensitivity analysis of CLIMEX parameters in modelling potential distribution of Lantana camara L.

    Directory of Open Access Journals (Sweden)

    Subhashni Taylor

    Full Text Available A process-based niche model of L. camara L. (lantana, a highly invasive shrub species, was developed to estimate its potential distribution using CLIMEX. Model development was carried out using its native and invasive distribution and validation was carried out with the extensive Australian distribution. A good fit was observed, with 86.7% of herbarium specimens collected in Australia occurring within the suitable and highly suitable categories. A sensitivity analysis was conducted to identify the model parameters that had the most influence on lantana distribution. The changes in suitability were assessed by mapping the regions where the distribution changed with each parameter alteration. This allowed an assessment of where, within Australia, the modification of each parameter was having the most impact, particularly in terms of the suitable and highly suitable locations. The sensitivity of various parameters was also evaluated by calculating the changes in area within the suitable and highly suitable categories. The limiting low temperature (DV0, limiting high temperature (DV3 and limiting low soil moisture (SM0 showed highest sensitivity to change. The other model parameters were relatively insensitive to change. Highly sensitive parameters require extensive research and data collection to be fitted accurately in species distribution models. The results from this study can inform more cost effective development of species distribution models for lantana. Such models form an integral part of the management of invasive species and the results can be used to streamline data collection requirements for potential distribution modelling.

  14. Lantana camara L. (Verbenaceae) invasion along streams in a heterogeneous landscape

    Indian Academy of Sciences (India)

    Geetha Ramaswami; Raman Sukumar

    2014-09-01

    Streams are periodically disturbed due to flooding, act as edges between habitats and also facilitate the dispersal of propagules, thus being potentially more vulnerable to invasions than adjoining regions. We used a landscape-wide transect-based sampling strategy and a mixed effects modelling approach to understand the effects of distance from stream, a rainfall gradient, light availability and fire history on the distribution of the invasive shrub Lantana camara L.(lantana) in the tropical dry forests of Mudumalai in southern India. The area occupied by lantana thickets and lantana stem abundance were both found to be highest closest to streams across this landscape with a rainfall gradient. There was no advantage in terms of increased abundance or area occupied by lantana when it grew closer to streams in drier areas as compared to moister areas. On an average, the area covered by lantana increased with increasing annual rainfall. Areas that experienced greater number of fires during 1989–2010 had lower lantana stem abundance irrespective of distance from streams. In this landscape, total light availability did not affect lantana abundance. Understanding the spatially variable environmental factors in a heterogeneous landscape influencing the distribution of lantana would aid in making informed management decisions at this scale.

  15. Endodoncia preventiva: Protección pulpar mediante la técnica de eliminación de la caries en etapas (stepwise excavation) Preventive endodontics: pulp protection using stepwise caries removal procedure

    OpenAIRE

    L. Castellanos-Cosano; J. Martín-González; C. Calvo-Monroy; F.J. López-Frías; E. Velasco-Ortega; J.M. Llamas-Carreras; J.J. Segura-Egea

    2011-01-01

    El tratamiento de la caries dentinaria profunda en dientes permanentes se ha venido realizando, generalmente, mediante la remoción completa y en una sola sesión de la dentina cariada, incluyendo la dentina blanda desmineralizada, sin tener en cuenta el potencial regenerador de la pulpa dental. Una complicación frecuentemente ligada a esta actitud es la exposición pulpar intraoperatoria que, en muchos casos, termina en tratamiento de conductos. Varios estudios han demostrado que la eliminación...

  16. Batch, Kinetic and Equilibrium Studies of Chromium (Vi From Aqueous Phase Using Activated Carbon Derived From Lantana Camara Fruit

    Directory of Open Access Journals (Sweden)

    K. Nithya

    2015-12-01

    Full Text Available Batch experiments have been conducted to determine the maximum adsorption capacity of activated carbon derived from Lantana camara fruit to remove hexavalent chromium from aqueous solution. The removal efficiency and uptake capacity of the biosorbent were determined by varying several batch level parameters. Highest removal efficiency of the biosorbent was found to be almost 99% under optimal conditions. Maximum monolayer adsorption capacity was determined to be 86 mg/g. The experimental data best fitted with Langmuir adsorption isotherm and pseudo second order model. These findings conclude that the selected biosorbent has more promising features in binding hexavalent chromium in aqueous media.

  17. Ventajas del mineral trióxido agregado y del hidróxido de calcio frente a patologías pulpares de tipo degenerativo

    Directory of Open Access Journals (Sweden)

    Edison Gabriel Quintero Ricardo

    2014-06-01

    Full Text Available ResumenEl agregado de trióxido mineral (MTA es un material desarrollado para endodoncia. Las principales indicaciones del MTA, son el tratamiento pulpar en dientes vitales (pulpotomias, recubrimiento pulpar directo, apicoformaciones (barrera apical, cirugía endodóncica, reparación de perforaciones furcales, laterales y las provocadas por las reabsorciones. El MTA favorece la formación de hueso y cemento, y puede facilitar la regeneración del ligamento periodontal sin provocar inflamación; como un coadyuvante del MTA en los procesos de reparación tenemos el hidróxido de calcio que es un potente agente bacteriostático y bactericida que se utiliza para el control de microorganismos cuando es empleado como medicamento intraconducto, igualmente actúa como agente catalizador en la modificación del pH en los tejidos periapicales con el fin de favorecer el proceso de cicatrización, presenta excelentes propiedades higroscópica en cuanto al control del exudado en conductos radiculares de dientes con lesiones periapicales grandes los cuales muchas veces presentan humedad persistente en los canales radiculares asimismo actúa en la prevención o detención de procesos resortivos ejerciendo efectos moduladores en la actividad clástica. Por tales propiedades el artículo tiene como fin mostrar los efectos a corto plazo que ocurren en una reabsorción interna y lesión apical al momento de utilizar mineral trióxido agregado (MTA e hidróxido de calcio como material intracanal. (Duazary 2009-II 141-146AbstractMineral trioxide aggregate (MTA is a new material developed for endodontics. The principal indications of MTA are vital pulp therapy (pulpotomy, direct pulp capping, apexification (apical plug, endodontic surgery, and lateral, furcal and resorption perforations repair. The MTA induce the formation of cementum and bone, and it may facilitate the regeneration of the periodontal ligament without causing any inflammation; as a helping of the

  18. Merger of aspects of the 'Programa Luz para Todos' in the regulation of ANEEL; Incorporacao de aspectos do Programa Luz para Todos na regulacao da ANEEL

    Energy Technology Data Exchange (ETDEWEB)

    Camargo, Ednaldo Jose Silva de [Universidade de Sao Paulo (IEE/USP), SP (Brazil). Inst. de Eletrotecnica e Energia; Ribeiro, Fernando Selles [Universidade de Sao Paulo (USP), SP (Brazil). Escola Politecnica

    2009-07-01

    This study aims to examine the relationship between concessionaire and requesting public service of electric energy from the changes brought about by the 'Programa Luz para Todos', for residents of rural areas. The concept of access to electricity as a right for all Brazilians and as an essential right of citizenship, also studying processing of legislation in order to accomplish this right. Examines the advances offered by the 'Programa Luz para Todos' - both in terms of social inclusion which provides, as the increase in energy demand and consequent increase of the distribution market - which regulation is based on document entitled 'Manual de Operationalizacao' and was formally accepted by utilities to distribute power and cooperatives in rural electrification. Presents a discussion about the same subject under the 'Poder Legislativo', in a bill in the 'Camara Federal' procedure. Demonstrates the existence of a desire for maintaining the progress achieved in various spheres of government. Proposes ANEEL's incorporation of some aspects of the modern setting, in particular with regard to the concept of the 'Ponto de Entrega' as defined in Article 9 of Resolution 456/00. (author)

  19. Effect of Collection Time on Essential Oil Composition of Lantana camara Linn (Verbenaceae Growing in Brazil Northeastern

    Directory of Open Access Journals (Sweden)

    Erlânio O. Sousa

    2010-01-01

    Full Text Available To verify the composition variation of its essential oil along 24 hours, leaves of Lantana camara Linn. of medicinal plant collection of the Department of Chemical Biology of URCA-Crato–CE, were collected every three hours during one day (of the 07:00 to 19:00 h in April, 2008. The leaves had its oil extracted by hydro-distillation in Clevenger apparatus during three hours with two repetitions. The chemical composition analysis of the extracted essential oils was carried out in gas chromatography/mass spectroscopy. The phytochemical profile of the essential oils presented significant difference in function of the harvest. The seven most abundant were: germacrene D (24.50-6.15%, biciclogermacrene (33.32-14.27%, spathulenol (25.04-1.06%, eremophilene (20.64-1.93%, valecene (33.70-0.84%, viridiflorene (19.46% and 1,10-di-epi-cubenol (27.93-21.32. The different result found here indicates the existence of different chemotypes of L. camara

  20. Prestaciones del Detector Central de Muones del Experimento CMS: las Camaras de Deriva y su Sistema de Trigger (Performance of the Central Muon Detector of the Experiment CMS: the Drift Tube Chambers and its Trigger System)

    CERN Document Server

    Muñoz, Carlos Villanueva

    2007-01-01

    Prestaciones del Detector Central de Muones del Experimento CMS: las Camaras de Deriva y su Sistema de Trigger (Performance of the Central Muon Detector of the Experiment CMS: the Drift Tube Chambers and its Trigger System)

  1. Blasting forward in underground work; Voladuras de camara de la mina de Aguas Tenidas

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Maneiro, C. H.; Maqueda Jimenez, S.; Pazos Perez, L.; Carnero Ortiz, F.

    2012-11-01

    This paper explains the drilling and blasting techniques of stopes in Aguas Tenidas Mine (Huelva, Spain), including slot raises and slots. Highights are: application of electronic detonators and a 30'' hole in slot raise blasts, ANFO uphole chrging of 89 mm holes and high productive fan drillin, in order to maintain stoping production of 150.000 t/month. (Author)

  2. Lantana camara Linn leaf extract mediated green synthesis of gold nanoparticles and study of its catalytic activity

    Science.gov (United States)

    Dash, Shib Shankar; Bag, Braja Gopal; Hota, Poulami

    2015-03-01

    A facile one-step green synthesis of stable gold nanoparticles (AuNPs) has been described using chloroauric acid (HAuCl4) and the leaf extract of Lantana camara Linn (Verbenaceae family) at room temperature. The leaf extract enriched in various types of plant secondary metabolites is highly efficient for the reduction of chloroaurate ions into metallic gold and stabilizes the synthesized AuNPs without any additional stabilizing or capping agents. Detailed characterizations of the synthesized gold nanoparticles were carried out by surface plasmon resonance spectroscopy, transmission electron microscopy, dynamic light scattering, Zeta potential, X-ray diffraction and Fourier transform-infrared spectroscopy studies. The synthesized AuNPs have been utilized as a catalyst for the sodium borohydride reduction of 4-nitrophenol to 4-aminophenol in water at room temperature under mild reaction condition. The kinetics of the reduction reaction has been studied spectrophotometrically.

  3. Pulp tissue dissolution when the use of sodium hypochlorite and EDTA alone or associated = Dissolução do tecido pulpar quando do uso do hipoclorito de sódio e EDTA isoladamente ou associados

    OpenAIRE

    Só, Marcus Vinicius Reis

    2011-01-01

    Objetivo: O objetivo do presente estudo foi avaliar a capacidade de dissolução tecidual de várias concentrações de hipoclorito de sódio, isoladamente ou em combinação com o EDTA 17%. Metodologia: Oitenta fragmentos de polpa bovina foram preparados e seus pesos foram determinados através de uma balança de precisão. Cada fragmento pulpar foi imerso por 2 horas em cada uma das soluções/misturas e formaram os seguintes grupos: G1- Solução salina; G2- NaOCl 0,5%; G3- NaOCl 1%; G4- NaOCl 2,5%; G...

  4. Endodoncia preventiva: Protección pulpar mediante la técnica de eliminación de la caries en etapas (stepwise excavation Preventive endodontics: pulp protection using stepwise caries removal procedure

    Directory of Open Access Journals (Sweden)

    L. Castellanos-Cosano

    2011-10-01

    Full Text Available El tratamiento de la caries dentinaria profunda en dientes permanentes se ha venido realizando, generalmente, mediante la remoción completa y en una sola sesión de la dentina cariada, incluyendo la dentina blanda desmineralizada, sin tener en cuenta el potencial regenerador de la pulpa dental. Una complicación frecuentemente ligada a esta actitud es la exposición pulpar intraoperatoria que, en muchos casos, termina en tratamiento de conductos. Varios estudios han demostrado que la eliminación de la caries dentinaria profunda por etapas, en dos visitas con varios meses de diferencia, protege a la pulpa, disminuyendo la frecuencia de exposiciones pulpares, a la vez que permite la formación de dentina terciaria, con la consiguiente disminución del porcentaje de casos que requieren tratamiento endodóncico. En este artículo se analiza el estado del conocimiento y la evidencia científica sobre este tema.The treatment of deep dentine carious lesions in permanent teeth has included, generally, complete removal of affected dentin in a single session, including soft demineralized dentin, regardless of the regenerative potential of dental pulp. One complication often linked to this attitude is the pulp exposure, in many cases ending in root canal treatment. Several studies have shown that the elimination of deep dentine caries in stages, in two visits to several months apart, protects the pulp, reducing the frequency of pulp exposures, while allowing the development of tertiary dentin, with the consequent decrease in the percentage of cases requiring endodontic treatment. This article discusses the state of knowledge and scientific evidence on this topic.

  5. Creams Formulated with Ocimum gratissimum L. and Lantana camara L. Crude Extracts and Fractions as Mosquito Repellents Against Aedes aegypti L. (Diptera: Culicidae)

    OpenAIRE

    Keziah, Ezeike Amarachi; Nukenine, Elias Nchiwan; Danga, Simon Pierre Yinyang; Younoussa, Lame; Esimone, Charles Okechukwu

    2015-01-01

    Mosquitoes are the most deadly vectors of parasites that cause diseases such as malaria, yellow fever, and filariasis. In view of the recent increased interest in developing plant origin insecticides as an alternative to chemical insecticides, the objective of this study was to determine the repellent activity of creams formulated with methanol crude extract (MCE), hexane fraction (HF), and ethyl acetate fractions (EAFs) of Ocimum gratissimum and Lantana camara leaves in single and combined a...

  6. Avaliação em MEV da fenda resultante da contração de polimerização da resina composta aplicada sobre diferentes materiais protetores pulpares = A sem evaluation of the gap resulting from the polymerization shrinkage of composite resins applied to different pulp protective materials

    OpenAIRE

    Unfer, Daniele Taís

    2006-01-01

    Introdução: A resina composta sofre contração como resultado da reação de polimerização que pode deslocar os materiais protetores pulpares, caso estes apresentem deficiente ou nenhuma adesão a dentina. Objetivo: avaliar o comportamento de dois materiais de proteção pulpar (CIV e CaOH2 cement) em relação presença de fenda, quando submetidos a estresse de contração da resina composta e avaliar a fenda resultante da contração de polimerização entre dentina e resina composta. Metodologia: Foram c...

  7. Allelopathic Effect of Lantana camara L. Leaf Powder on Germination and Growth Behaviour of Maize, Zea mays Linn. and Wheat, Triticum turgidum Linn. Cultivars

    Directory of Open Access Journals (Sweden)

    Abiyu Enyew

    2015-01-01

    Full Text Available Aim of the present study was to evaluate allelopathic effect of Lantana camara leaf powder on germination and growth behaviour of Zea mays and Triticum turgidum. The pot culture experiments were conducted at Botany laboratory, Tewodros campus, University of Gondar, Ethiopia from November 2012 to April 2013. The experimental design was Completely Randomized Block Design (CRBD with three treatments and one control. The soil without adding L. camara leaf powder was considered as control (T0 and (T1, (T2 were mixed with 25, 50 and 75 g of L. camara leaf powder, respectively. The percentage of germination, root and shoot length, stem thickness and biomass were recorded from three replicates. Maximum germination percentage of wheat (96.60% and maize (53.33% was recorded at T1 and it was minimum (70% in wheat and maize (43.33% at 3 compared to control (100%. The germination index of wheat and maize was 5 cm and 1.9 cm, respectively at T1. The shoot and root length variation observed in wheat and maize was statistically significant (p<0.05 compared to control. The percentage root inhibition of wheat and maize was 62.1 and 39.4%, respectively at 3 T3 compared to control. The stem thickness variation among the treatment and control was statistically significant (p<0.05 in both the experimental plants. Maximum fresh weight and dry weight of wheat was 1.3 g and 0.4 g, respectively at T0 and minimum was 0.8 and 0.1 g, respectively at 3. In maize, maximum fresh weight and dry weight was 8.5 g and 1.5 g, respectively at T0 and minimum 3.9 and 0.4 g, respectively at 3. The biomass variation of wheat and maize results were statistically significant (p<0.05. In conclusion, L. camara leaf powder significantly inhibits seed germination, speed of germination, shoot and root length, stem thickness and biomass of wheat and maize. By keeping the L. camara plants around agricultural field may affect growth parameter of wheat and maize. Further studies on

  8. Oil protection action &apos;&apos;Green Aalesund&apos;&apos;; Oljevernaksjonen &apos;&apos;Green Aalesund&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    This report describes the actions taken after the refrigerator ship &apos;&apos;Green Aalesund&apos;&apos; ran aground north of Haugesund, Norway, on December 12, 2000. The report was worked out by the National State Pollution Control Authority (SFT). It is based on logs and other written documentation. The clean-up was carried out competently and successfully and the environmental damage was small.

  9. Experimental and theoretical investigations of Lantana camara oil diffusion from polyacrylonitrile membrane for pulsatile drug delivery system

    International Nuclear Information System (INIS)

    Porous composite membrane of polyacrylonitrile (PAN) and Lantana camara essential oil was synthesized by solvent casting method. Stability of oil in PAN solution was measured by XiGo nano tool indicating constant relaxation time of 1487 time/s. Pore size of few microns confirmed by electron microscopy was supported by atomic force microscopy indicating roughness factor of 0.9 nm. Contact angle of 2° inveterates superhydrophilicity of the composite membrane. Membrane showed excellent antibacterial activity against both Gram-positive Bacillus subtilis and Gram-negative Escherichia coli with a 7–10 mm zone of inhibition. In vitro release of Lantana oil from the composite membrane was carried out in isotonic phosphate buffer solution (pH = 7.4). Lantana oil was released for 9 h, lag time of 3 h with constant 33% release confirmed PAN membranes as potential system for pulsatile drug delivery applications. Diffusion of E-caryophyllene (antibacterial component of oil) which was studied through molecular simulation using Material Studio software ensued diffusion coefficient value of 1.11 ∗ 10−9 m2/s. Biocompatibility of the composite membrane was assessed by mouse embryonic fibroblast cell line (NIH 3T3) through MTT assay indicating more than 91% viable cell even at 200 μg/mL concentration. Such membranes can be efficiently used in biomedical applications as antibacterial and antifungal agent. - Highlights: • Pulsatile release • Lantana oil–PAN composite membrane as antibacterial material • Enhanced bactericidal activity of the membrane

  10. Chemical composition and antibacterial properties of the essential oil and extracts of Lantana camara Linn. from Uttarakhand (India)

    Institute of Scientific and Technical Information of China (English)

    Richa Seth; Manindra Mohan; Prashant Singh; Syed Zafar Haider; Sanjay Gupta; Irshita Bajpai; Deepak Singh; Rajendra Dobhal

    2012-01-01

    Objective: The purpose of this study was to evaluate the essential oil composition as well as antibacterial activities of essential oil and leaves extracts of Lantana camara against five bacterial strains. Methods: Essential oil was obtained by hydro-distillation from the leaves and analyzed by GC and GC-MS. The antibacterial activities of essential oil and the leaves extracts were tested by using disk diffusion method against five bacterial strains. Results: Thirty seven compounds were identified representing 98.11% of the total oil, of which trans-caryophyllene (13.95%), bicyclogermacrene (9.77%), α-curcumene (8.57%), sabinene (8.28%), (E)-citral (6.90%), 1,8 cineole (5.06%), α-pinene (4.03%), γ-terpinene (3.83%) and germacrene D (3.13%) were detected as major components. In respect to the antibacterial activities, essential oil showed the high degree of sensitivity against Micrococcus luteus, Escherichia coli, Staphylococcus aureus and Bacillus cereus except Pseudomonas aeruginosa while extracts of leaves obtained through petroleum ether, benzene, methanol and water exhibited good to moderate antimicrobial activity against all tested bacterial strains. Conclusions: The present study suggested that M. luteus showed best zone of inhibition for the essential oil as well as aqueous extract among all the tested bacterial strains. The most active extract can be subjected to isolation of the therapeutic antimicrobials to carry out further pharmacological evaluation.

  11. Vermicomposting eliminates the toxicity of Lantana (Lantana camara) and turns it into a plant friendly organic fertilizer.

    Science.gov (United States)

    Hussain, N; Abbasi, Tasneem; Abbasi, S A

    2015-11-15

    In evidently the first study of its kind, vermicompost derived solely from a weed known to possess plant and animal toxicity was used to assess its impact on the germination and early growth of several plant species. No pre-composting or supplementation of animal manure was done to generate the vermicompost in order to ensure that the impact is clearly attributable to the weed. Whereas the weed used in this study, Lantana (Lantana camara), is known to possess strong negative allelopathy, besides plant/animal toxicity in other forms, its vermicompost was seen to be a good organic fertilizer as it increased germination success and encouraged growth of all the three botanical species explored by the authors - green gram (Vigna radiata), ladies finger (Abelmoschus esculentus) and cucumber (Cucumis sativus). In terms of several physical, chemical and biochemical attributes that were studied, the vermicompost appeared plant-friendly, giving best results in general when employed at concentrations of 1.5% in soil (w/w). Fourier transform infrared spectrometry revealed that the phenols and the sesquiterpene lactones that are responsible for the allelopathic impact of Lantana were largely destroyed in the course of vermicomposting. There is also an indication that lignin content of Lantana was reduced during its vermicomposting. The findings open up the possibility that the billions of tons of phytomass that is generated annually by Lantana and other invasives can be gainfully utilized in generating organic fertilizer via vermicomposting. PMID:26073377

  12. Evaluation of differential antitermitic activities of Lantana camara oven-dried tissues against Reticufitermes virginicus (Isoptera: Rhinotermitidae)

    Institute of Scientific and Technical Information of China (English)

    Zhonglin Yuan; Xingl Ping Hu

    2011-01-01

    Chemical-treated soil or physical barriers have been the most commonly used approach for termite management.We hypothesized that a barrier of soil incorporated with oven-dried Lantana camara L.tissues could prevent termite infestation.We first examined the antitermitic effects of the dried tissues from two cultivars (‘Mozelle’ and ‘New Gold’)on the subterranean termite,Reticulitermes virginicus (Banks) (Isoptera:Rhinotermitidae).Results show that all of the tissues of Mozelle had greater antitermic activity than corresponding tissues of New Gold,and leaves had greater termiticidal effects than flowers and stems.When termites were exposed to the test materials in a no-choice bioassay,the 24-day test resulted in a significant reduction of survival (52.5%-88.6%),running speed (18.2%-37.3%),live weight (21.8%-53.5%) and body water content (33.2%-56.2%) compared to the control.The consumption of leaves and flowers was exiguous.When used as 25% tissue mulch-barrier,the oven-dried lantana tissues decreased termite tunneling and wood consumption and increased termite mortality.The decreased survival,vigor,and low consumption indicate a toxic and anti-feeding property of the materials tested.The results therefore support our hypothesis that the dried lantana tissues possess antitermitic activities.

  13. Experimental and theoretical investigations of Lantana camara oil diffusion from polyacrylonitrile membrane for pulsatile drug delivery system.

    Science.gov (United States)

    Verma, Vivek; Balasubramanian, K

    2014-08-01

    Porous composite membrane of polyacrylonitrile (PAN) and Lantana camara essential oil was synthesized by solvent casting method. Stability of oil in PAN solution was measured by XiGo nano tool indicating constant relaxation time of 1487 time/s. Pore size of few microns confirmed by electron microscopy was supported by atomic force microscopy indicating roughness factor of 0.9 nm. Contact angle of 2° inveterates superhydrophilicity of the composite membrane. Membrane showed excellent antibacterial activity against both Gram-positive Bacillus subtilis and Gram-negative Escherichia coli with a 7-10mm zone of inhibition. In vitro release of Lantana oil from the composite membrane was carried out in isotonic phosphate buffer solution (pH=7.4). Lantana oil was released for 9h, lag time of 3h with constant 33% release confirmed PAN membranes as potential system for pulsatile drug delivery applications. Diffusion of E-caryophyllene (antibacterial component of oil) which was studied through molecular simulation using Material Studio software ensued diffusion coefficient value of 1.11∗10(-9) m(2)/s. Biocompatibility of the composite membrane was assessed by mouse embryonic fibroblast cell line (NIH 3T3) through MTT assay indicating more than 91% viable cell even at 200 μg/mL concentration. Such membranes can be efficiently used in biomedical applications as antibacterial and antifungal agent. PMID:24907763

  14. Effect of essential oils from leaves of Ageratum conyzoides, Lantana camara and Chromolaena odorata on the mortality of Sitophilus zeamais (Coleoptera, Curculionidae).

    Science.gov (United States)

    Bouda; Tapondjou; Fontem; Gumedzoe

    2001-04-01

    Ageratum conyzoides, Chromolaena odorata, and Lantana camara, are common weed species in Cameroon. Essential oil extracts from their leaves were tested for efficacy on the morality of the maize grain weevil, Sitophilus zeamais (Coleoptera, Curculionidae). Concentrations of the essential oils relative to the maize grains of 0.013, 0.025, 0.05 and 0.1% (v/w) were used for A. conyzoides and 0.063, 0.125, 0.25 and 0.50% (v/w) for C. odorata and L. camara. Twenty 7-day old adult weevils were fed on maize grains treated with the above concentrations of the essential oils in Petri dishes. Control dishes contained insects and maize grains without essential oils. The experiment was repeated three times. Dishes were incubated in the laboratory for 7 days at 26 degrees C and 75-85% relative humidity. Insect mortality was recorded every 24 h. Graphs of percentage mortality versus the duration of exposure were constructed and the LD(50) was computed for each oil. Significant insect mortality was obtained with all the essential oils used. The mortality of S. zeamais increased with the concentration of the essential oils of the three plants and the duration of exposure of the weevils on the treated substrates. The essential oil extract of Ageratum conyzoides was the most effective insecticide (LD(50)=0.09% in 24 h), followed by that of L. camara (LD(50)=0.16%) and C. odorata (LD(50)=6.78%). These results show that the essential oils of the leaves of some of these weed species may be exploited for insect control in stored products. PMID:11124374

  15. The strategic &apos;'pull'&apos; and operational &apos;'push'&apos; of total quality management in UK regional electricity service companies

    Energy Technology Data Exchange (ETDEWEB)

    McAdam, R.; McLean, J.; Henderson, J.

    2003-04-30

    The aim of this paper is to evaluate whether the UK regional electricity companies (RECs) has used total quality management (TQM) as a &apos;'push'&apos; or as a &apos;'pull'&apos; change methodology. &apos;'Push'&apos; is the operational improvement role of TQM; &apos;'pull'&apos; is the strategic or direction giving, improvement role of TQM. Following the onset of privatisation in 1990 there has been evidence of the RECs adopting TQM in both &apos;'push'&apos; and &apos;'pull'&apos; methodologies with varying degrees of success. An evaluation of the change processes involved will enable improved change models to be developed leading to increased business effectiveness in this 30 billion pounds sterling industry. Other possible benefits include the possible generalisations to other utilities such as water, roads, gas and telecoms. The research methodology includes a comparative case study analysis of five RECs, which have used TQM as their overarching approach to change. One of the cases is analysed to a more in-depth level based on the multiple case findings. The findings indicate that the &apos;'push-pull'&apos; analysis enables the full range of TQM activities to be evaluated in the RECs studied. Overall, there is a need to have a balanced portfolio of operational or &apos;'push'&apos;-based TQM activity that is driven by strategic or &apos;'pull'&apos; based TQM planning and activity. (author)

  16. Long-term environmental correlates of invasion by Lantana camara (Verbenaceae) in a seasonally dry tropical forest.

    Science.gov (United States)

    Ramaswami, Geetha; Sukumar, Raman

    2013-01-01

    Invasive species, local plant communities and invaded ecosystems change over space and time. Quantifying this change may lead to a better understanding of the ecology and the effective management of invasive species. We used data on density of the highly invasive shrub Lantana camara (lantana) for the period 1990-2008 from a 50 ha permanent plot in a seasonally dry tropical forest of Mudumalai in southern India. We used a cumulative link mixed-effects regression approach to model the transition of lantana from one qualitative density state to another as a function of biotic factors such as indicators of competition from local species (lantana itself, perennial grasses, invasive Chromolaena odorata, the native shrub Helicteres isora and basal area of native trees) and abiotic factors such as fire frequency, inter-annual variability of rainfall and relative soil moisture. The density of lantana increased substantially during the study period. Lantana density was negatively associated with the density of H. isora, positively associated with basal area of native trees, but not affected by the presence of grasses or other invasive species. In the absence of fire, lantana density increased with increasing rainfall. When fires occurred, transitions to higher densities occurred at low rainfall values. In drier regions, lantana changed from low to high density as rainfall increased while in wetter regions of the plot, lantana persisted in the dense category irrespective of rainfall. Lantana seems to effectively utilize resources distributed in space and time to its advantage, thus outcompeting local species and maintaining a population that is not yet self-limiting. High-risk areas and years could potentially be identified based on inferences from this study for facilitating management of lantana in tropical dry forests. PMID:24167555

  17. Long-term environmental correlates of invasion by Lantana camara (Verbenaceae in a seasonally dry tropical forest.

    Directory of Open Access Journals (Sweden)

    Geetha Ramaswami

    Full Text Available Invasive species, local plant communities and invaded ecosystems change over space and time. Quantifying this change may lead to a better understanding of the ecology and the effective management of invasive species. We used data on density of the highly invasive shrub Lantana camara (lantana for the period 1990-2008 from a 50 ha permanent plot in a seasonally dry tropical forest of Mudumalai in southern India. We used a cumulative link mixed-effects regression approach to model the transition of lantana from one qualitative density state to another as a function of biotic factors such as indicators of competition from local species (lantana itself, perennial grasses, invasive Chromolaena odorata, the native shrub Helicteres isora and basal area of native trees and abiotic factors such as fire frequency, inter-annual variability of rainfall and relative soil moisture. The density of lantana increased substantially during the study period. Lantana density was negatively associated with the density of H. isora, positively associated with basal area of native trees, but not affected by the presence of grasses or other invasive species. In the absence of fire, lantana density increased with increasing rainfall. When fires occurred, transitions to higher densities occurred at low rainfall values. In drier regions, lantana changed from low to high density as rainfall increased while in wetter regions of the plot, lantana persisted in the dense category irrespective of rainfall. Lantana seems to effectively utilize resources distributed in space and time to its advantage, thus outcompeting local species and maintaining a population that is not yet self-limiting. High-risk areas and years could potentially be identified based on inferences from this study for facilitating management of lantana in tropical dry forests.

  18. Vermicomposting eliminates the toxicity of Lantana (Lantana camara) and turns it into a plant friendly organic fertilizer

    Energy Technology Data Exchange (ETDEWEB)

    Hussain, N.; Abbasi, Tasneem; Abbasi, S.A., E-mail: prof.s.a.abbasi@gmail.com

    2015-11-15

    Highlights: • It is shown for the first time that Lantana can lose its toxicity when vermicomposted. • The Lantana vermicompost is shown to be a good organic fertilizer. • FTIR studies identified Lantana’s toxic constituents destroyed by vermicomposting. • The findings have far-reaching implications in the gainful use of harmful weeds. - Abstract: In evidently the first study of its kind, vermicompost derived solely from a weed known to possess plant and animal toxicity was used to assess its impact on the germination and early growth of several plant species. No pre-composting or supplementation of animal manure was done to generate the vermicompost in order to ensure that the impact is clearly attributable to the weed. Whereas the weed used in this study, Lantana (Lantana camara), is known to possess strong negative allelopathy, besides plant/animal toxicity in other forms, its vermicompost was seen to be a good organic fertilizer as it increased germination success and encouraged growth of all the three botanical species explored by the authors – green gram (Vigna radiata), ladies finger (Abelmoschus esculentus) and cucumber (Cucumis sativus). In terms of several physical, chemical and biochemical attributes that were studied, the vermicompost appeared plant-friendly, giving best results in general when employed at concentrations of 1.5% in soil (w/w). Fourier transform infrared spectrometry revealed that the phenols and the sesquiterpene lactones that are responsible for the allelopathic impact of Lantana were largely destroyed in the course of vermicomposting. There is also an indication that lignin content of Lantana was reduced during its vermicomposting. The findings open up the possibility that the billions of tons of phytomass that is generated annually by Lantana and other invasives can be gainfully utilized in generating organic fertilizer via vermicomposting.

  19. Experimental and theoretical investigations of Lantana camara oil diffusion from polyacrylonitrile membrane for pulsatile drug delivery system

    Energy Technology Data Exchange (ETDEWEB)

    Verma, Vivek [Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008 (India); Balasubramanian, K., E-mail: meetkbs@gmail.com [Department of Materials Engineering, Defence Institute of Advance Technology (DIAT), Ministry of Defence, Girinagar, Pune 411025 (India)

    2014-08-01

    Porous composite membrane of polyacrylonitrile (PAN) and Lantana camara essential oil was synthesized by solvent casting method. Stability of oil in PAN solution was measured by XiGo nano tool indicating constant relaxation time of 1487 time/s. Pore size of few microns confirmed by electron microscopy was supported by atomic force microscopy indicating roughness factor of 0.9 nm. Contact angle of 2° inveterates superhydrophilicity of the composite membrane. Membrane showed excellent antibacterial activity against both Gram-positive Bacillus subtilis and Gram-negative Escherichia coli with a 7–10 mm zone of inhibition. In vitro release of Lantana oil from the composite membrane was carried out in isotonic phosphate buffer solution (pH = 7.4). Lantana oil was released for 9 h, lag time of 3 h with constant 33% release confirmed PAN membranes as potential system for pulsatile drug delivery applications. Diffusion of E-caryophyllene (antibacterial component of oil) which was studied through molecular simulation using Material Studio software ensued diffusion coefficient value of 1.11 ∗ 10{sup −9} m{sup 2}/s. Biocompatibility of the composite membrane was assessed by mouse embryonic fibroblast cell line (NIH 3T3) through MTT assay indicating more than 91% viable cell even at 200 μg/mL concentration. Such membranes can be efficiently used in biomedical applications as antibacterial and antifungal agent. - Highlights: • Pulsatile release • Lantana oil–PAN composite membrane as antibacterial material • Enhanced bactericidal activity of the membrane.

  20. Vermicomposting eliminates the toxicity of Lantana (Lantana camara) and turns it into a plant friendly organic fertilizer

    International Nuclear Information System (INIS)

    Highlights: • It is shown for the first time that Lantana can lose its toxicity when vermicomposted. • The Lantana vermicompost is shown to be a good organic fertilizer. • FTIR studies identified Lantana’s toxic constituents destroyed by vermicomposting. • The findings have far-reaching implications in the gainful use of harmful weeds. - Abstract: In evidently the first study of its kind, vermicompost derived solely from a weed known to possess plant and animal toxicity was used to assess its impact on the germination and early growth of several plant species. No pre-composting or supplementation of animal manure was done to generate the vermicompost in order to ensure that the impact is clearly attributable to the weed. Whereas the weed used in this study, Lantana (Lantana camara), is known to possess strong negative allelopathy, besides plant/animal toxicity in other forms, its vermicompost was seen to be a good organic fertilizer as it increased germination success and encouraged growth of all the three botanical species explored by the authors – green gram (Vigna radiata), ladies finger (Abelmoschus esculentus) and cucumber (Cucumis sativus). In terms of several physical, chemical and biochemical attributes that were studied, the vermicompost appeared plant-friendly, giving best results in general when employed at concentrations of 1.5% in soil (w/w). Fourier transform infrared spectrometry revealed that the phenols and the sesquiterpene lactones that are responsible for the allelopathic impact of Lantana were largely destroyed in the course of vermicomposting. There is also an indication that lignin content of Lantana was reduced during its vermicomposting. The findings open up the possibility that the billions of tons of phytomass that is generated annually by Lantana and other invasives can be gainfully utilized in generating organic fertilizer via vermicomposting

  1. In Vitro Pharmacological Activities and GC-MS Analysis of Different Solvent Extracts of Lantana camara Leaves Collected from Tropical Region of Malaysia

    Directory of Open Access Journals (Sweden)

    Mallappa Kumara Swamy

    2015-01-01

    Full Text Available We investigated the effect of different solvents (ethyl acetate, methanol, acetone, and chloroform on the extraction of phytoconstituents from Lantana camara leaves and their antioxidant and antibacterial activities. Further, GC-MS analysis was carried out to identify the bioactive chemical constituents occurring in the active extract. The results revealed the presence of various phytocompounds in the extracts. The methanol solvent recovered higher extractable compounds (14.4% of yield and contained the highest phenolic (92.8 mg GAE/g and flavonoid (26.5 mg RE/g content. DPPH radical scavenging assay showed the IC50 value of 165, 200, 245, and 440 μg/mL for methanol, ethyl acetate, acetone, and chloroform extracts, respectively. The hydroxyl scavenging activity test showed the IC50 value of 110, 240, 300, and 510 μg/mL for methanol, ethyl acetate, acetone, and chloroform extracts, respectively. Gram negative bacterial pathogens (E. coli and K. pneumoniae were more susceptible to all extracts compared to Gram positive bacteria (M. luteus, B. subtilis, and S. aureus. Methanol extract had the highest inhibition activity against all the tested microbes. Moreover, methanolic extract of L. camara contained 32 bioactive components as revealed by GC-MS study. The identified major compounds included hexadecanoic acid (5.197%, phytol (4.528%, caryophyllene oxide (4.605%, and 9,12,15-octadecatrienoic acid, methyl ester, (Z,Z,Z- (3.751%.

  2. High energy X-ray laboratory &apos;'HEXYLab'&apos;. The new facility &apos;'HEXYTech'&apos;; Hochenergie-Roentgen-Labor &apos;'HEXYLab'&apos;. Die neue Anlage &apos;'HEXYTech'&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Redmer, Bernhard; Hohendorf, Stefan; Kolkoori, Sanjeevareddy; Wrobel, Norma; Ewert, Uwe [BAM Bundesanstalt fuer Materialforschung und -pruefung, Berlin (Germany)

    2015-07-01

    High-energy radiography is used traditionally for the detection of defects in the thick-walled, bulky components. It is also used for testing the integrity of components for civil and security related applications (containers). The combination of high-energy emitters with digital detector arrays or line cameras allows test procedures in a shorter time compared to film or higher contrast sensitivity. The high-energy X-ray laboratory HEXYLab BAM is a joint laboratory in which future users, manufacturers and scientists can initiate and develop joint development projects. The new universal manipulation system HEXYTech forms the engineering and technical base for the most diverse requirements in HEXYLab (High Energy X-raY Lab.). With a total of 13 rotary and linear axes the diverse trajectories for tube, object and detector can be programmed. So large objects with complex geometries can be examined. 2D and 3D images can be measured by simple radiography, and laminography and computed tomography. The general rules for the application of high energy radiography with digital detectors (imaging plates, Digital detector arrays) were determined within the framework of the European project &apos;'HEDRad'&apos; (High Energy Digital Radiography) and included in the standard DIN EN ISO 17636-2. This article gives an overview of the testing technology and presents the possible applications on the basis of images and experiments. (PowerPoint slides). [German] Hochenergie-Radiographie wird traditionell fuer die Detektion von Defekten in dickwandigen, sperrigen Komponenten angewendet. Sie wird auch genutzt fuer die Pruefung der Komponentenintegritaet bei zivilen und sicherheitsrelevanten Anwendungen (Container). Die Kombination von Hochenergie- Strahlern mit digitalen Detektorarrays oder Zeilenkameras ermoeglicht die Pruefungsdurchfuehrung in kuerzerer Zeit im Vergleich zum Film oder mit hoeherer Kontrastempfindlichkeit. Das Hochenergie-Roentgen-Labor &apos;'HEXYLab'&apos

  3. Avaliação em MEV da fenda resultante da contração de polimerização da resina composta aplicada sobre diferentes materiais protetores pulpares = A sem evaluation of the gap resulting from the polymerization shrinkage of composite resins applied to different pulp protective materials

    Directory of Open Access Journals (Sweden)

    Unfer, Daniele Taís

    2006-01-01

    Full Text Available Introdução: A resina composta sofre contração como resultado da reação de polimerização que pode deslocar os materiais protetores pulpares, caso estes apresentem deficiente ou nenhuma adesão a dentina. Objetivo: avaliar o comportamento de dois materiais de proteção pulpar (CIV e CaOH2 cement em relação presença de fenda, quando submetidos a estresse de contração da resina composta e avaliar a fenda resultante da contração de polimerização entre dentina e resina composta. Metodologia: Foram confeccionados preparos classe V nas faces vestibular e lingual de 12 dentes molares humanos os quais foram divididos em quatro grupos de estudo, conforme a técnica restauradora e os materiais utilizados: G1 (SA + RC; G2 (HC + SA + RC; G3 (CIV + SA + RC e G4 (HC + CIV + SA + RC. Os corpos de prova foram avaliados em MEV e os dados obtidos foram submetidos análise não-paramétrica. Resultados: Os resultados obtidos mostram que os materiais de proteção pulpar utilizados são deslocados pela contração gerada pela polimerização da resina composta. Os melhores resultados (não presença de fenda foram demonstrados no grupo em que o sistema adesivo foi o único material entre a dentina e a resina composta. Quando do uso do CIV e do HC, associados ou não, foi encontrado o maior percentual de fendas. Conclusão: Os materiais de proteção pulpar continuarão a ser deslocados pela contração de polimerização das resinas compostas enquanto sua união à estrutura dental não apresentar suficiente resistência ou não se evitar a contração da resina composta

  4. 入侵植物马缨丹对4种农作物的化感作用%Allelopathy of Invasive Plant Lantana camara on four Receiver Plants

    Institute of Scientific and Technical Information of China (English)

    卢向荣; 谭忠奇; 林益明; 柴纬明; 周海超

    2013-01-01

    Lantana camara , Verbenaceae family, is one of the invasive alien plants. Previous study about the allelopathy of L. camara mainly focused on exudates from stem and leaf,however,few study analysed the allelopathy of root exudates. At present,with the increasing of L. camara invasion expands scales,the plant has been expanded into farmland gradually. The aims of this study is to determine the allelopathy of different concentrations of water extracts from L. camara leaf and root on the germination and seedling growth of Vigna radiata ,Brassica campestris , Triticum aestivum and Oryza sativa. Different parts and concentrations of water extracts from L. camara had different allelopathic effects on four receiver plants. Except the lowest concentration (2 mg/mL) had slight facilitation effects,other higher concentrations (20,50,100,200 mg/mL)showed significant inhibition effects and the inhibition increased with concentrations. The sensitivity of water extracts from L. camara was different among four tested species,B. campestris was sensitive to allelopathy of L. camara,while O. sativa was not. This study gave theoretical support for improving the competitiveness of crops aroud L. camara,and also provide a scientific foundation for control of current invasions and prevention of future invasions.%马缨丹(Lantana camara)是马鞭草科中一种入侵性极强的外来植物,为了明确马缨丹对入侵地农作物的化感作用,研究了不同浓度马缨丹叶片及根系水浸液对绿豆(Vigna radiata)、油菜(Brassica campestris)、小麦(Triticum aestivum)和水稻(Oryza sativa)种子萌发和幼苗生长的影响.结果表明,马缨丹不同部位及不同浓度水浸液对4种农作物化感效应不同,马缨丹水浸液对4种农作物的种子萌发及幼苗生长具有低质量浓度(2 mg/mL)轻微促进、中高质量浓度(20,50,100和200 mg/mL)较强烈的抑制作用,且随着水浸液浓度的升高其抑制效应不断增强.不同作物对马缨丹

  5. Oil protection &apos;&apos;John R&apos;&apos;; Oljevernaksjon &apos;&apos;John R&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    The report briefly reviews the emergency actions after the bulk ship &apos;&apos;John R&apos;&apos; ran aground off Troms on December 15, 2002. The report was worked out by the contingency and control division at the National State Pollution Control Authority (SFT). SFT mobilized their own action organization to attend to the oil pollution preparedness around the disabled ship. The Norwegian Directorate of Shipping and Navigation (SD) mobilized in order to attend to a possible emergency discharging of the ship. In the opening phase, the situation was handled by Defence Command North Norway. The report is built on logs and other written documentation from the Coast Guard and from SFT. Material from several other participants are also included. The harmful effects on the environment were kept to a minimum. Altogether oil damage was observed on 1300 - 1800 sea birds. Only minor shores in three areas were affected.

  6. Histopathological study of the effects of low-intensity laser irradiation ({lambda}=650 nm) on dental pulp tissue after cavity preparation; Estudo histopatologico dos efeitos da irradiacao laser em baixa intensidade ({lambda}=650nm) em tecido pulpar apos preparo cavitario

    Energy Technology Data Exchange (ETDEWEB)

    Bertella, Claudio

    2001-07-01

    The purpose of this study was to evaluate (in vivo) the effects of low-intensity Arsenide Gallium Aluminium laser application post-cavity preparation class 1. Six patients with bilateral pre-molars and molars indicated to extraction for orthodontics aim were selected. Four samples of these teeth underwent cavity preparation with deep from medium to high and two samples underwent cavity preparation from high to pulp expositions. The samples were constituted of two teeth of the same patient and received different treatments. One of the teeth underwent laser exposition and the other one was maintained as control, before restorative procedure with polycarboxylate cement. A diode laser ({lambda}=650 nm), output power 30 mW and fluencies of 1,8 J/cm{sup 2} and 2,7 J/cm{sup 2} in pre-molars and molars, respectively, was used for irradiation with repetition rate of 18 Hz in interrupted continuous wave mode. After seven days, the teeth were extracted and processed histologically with HE to verify morphological changes in the pulpy tissue. The four samples, which cavity preparation and restorative material were not in contact with the pulp, did not show histological differences between irradiated and non-irradiated teeth. Both of them presented the same characteristics of normality. The two samples with exposed pulpy tissue showed different results. The irradiated teeth presented no or slight inflammatory signs when compared to the control samples, which showed abscess in the coronary pulp interior and intense inflammatory infiltrated. These results suggest that the laser irradiation can be used as a therapeutic modality in clinical trials, in the conditions employed in this study. (author)

  7. Creams formulated with Ocimum gratissimum L. and Lantana camara L. crude extracts and fractions as mosquito repellents against Aedes aegypti L. (Diptera: Culicidae).

    Science.gov (United States)

    Keziah, Ezeike Amarachi; Nukenine, Elias Nchiwan; Danga, Simon Pierre Yinyang; Younoussa, Lame; Esimone, Charles Okechukwu

    2015-01-01

    Mosquitoes are the most deadly vectors of parasites that cause diseases such as malaria, yellow fever, and filariasis. In view of the recent increased interest in developing plant origin insecticides as an alternative to chemical insecticides, the objective of this study was to determine the repellent activity of creams formulated with methanol crude extract (MCE), hexane fraction (HF), and ethyl acetate fractions (EAFs) of Ocimum gratissimum and Lantana camara leaves in single and combined actions against female Aedes aegypti. Evaluation was carried out in the net cages (30 by 30 by 30 cm) containing 60 blood-starved female mosquitoes each and were assayed in the laboratory condition following World Health Organization 2009 protocol. All formulations (single and mixture) were applied at 2, 4, 6, and 8 mg/cm(2) in the exposed area of human hands. Only acetone + white soft paraffin served as negative control and odomos (12% DEET) as positive control. All the formulations presented good protection against mosquito bites without any allergic reaction by the human volunteers. The repellent activity was dependent on the strength of the extracts and fractions. Among the tested formulations, the maximum protection time was observed in MCE (120 min) and EAF (150 min) of O. gratissimum; MCE:MCE (150 min) and HF:HF (120 min) mixtures of both plants. In addition, MCE:MCE and HF:HF mixtures from both plants showed possible synergistic effect. From the results, the combination of O. gratissimum and L. camara to formulate natural mosquito repellent using small amount of extracts can be encouraging to be an alternative to conventional DEET. PMID:25881633

  8. Country report: Lithuania. &apos;&apos;Best practice&apos;&apos; projects and measures in Lithuania

    Energy Technology Data Exchange (ETDEWEB)

    Kazakevicius, E. [Housing and Urban Development Foundation (Lithuania); Jarasunas, V. [Energy Efficiency Center (Lithuania); Skema, R. [Lithuanian Energy Inst. (Lithuania)

    2002-11-01

    The authors report on selected &apos;&apos;best practice&apos;&apos; energy efficiency and renewable energy projects and measures in Lithuania: thermal energy conservation in the building sector, energy audits in industry, biomass utilization. (uke)

  9. The &apos;'invisible'&apos; radioactive scale

    Energy Technology Data Exchange (ETDEWEB)

    Bjoernstad, T.; Ramsoey, T

    1999-04-01

    Production and up-concentration of naturally occurring radioactive material (NORM) in the petroleum industry has attracted steadily increasing attention during the last 15 years. Most production engineers today associate this radioactivity with precipitates (scales) and sludges in production tubing, pumps, valves, separators, settling tanks etc., wherever water is being transported or treated. {sup 226}Ra and {sup 228}Ra are the most well known radioactive constituents in scale. Surprisingly little known is the radioactive contamination by {sup 210}Pb and progeny {sup 210}Bi and {sup 210}Po. These are found in combination with {sup 226}Ra in ordinary scale, often in layer of non-radioactive metallic lead in water transportation systems, but also in pure gas and condensate handling systems &apos;'unsupported'&apos; by {sup 226}Ra, but due to transportation and decay of the noble gas {sup 222}Rn in NG/LNG. This latter contamination may be rather thin, in some cases virtually invisible. When, in addition, the radiation energies are low enough for not being detectable on the equipment outer surface, its existence has for most people in the industry been a secret. The report discusses transportation and deposition mechanisms, detection methods and provides some examples of measured results from the North Sea on equipment sent for maintenance. It is concluded that a regular measurement program for this type of contamination should be mandatory under all dismantling processes of transportation and fluid handling equipment for fluids and gases offshore and onshore.

  10. Development and deployment of a novel &apos;'yellow'&apos; demulsifier for the gullfaks &apos;'A'&apos; platform

    Energy Technology Data Exchange (ETDEWEB)

    Jackson, S.J.; Ingebrigtsen, T.; Breen, P.J.; Waage, J.; Thorstenson, T.; Melby, S.

    2006-03-15

    Oil producers are increasingly under pressure to produce their product in an environmentally sound manner. Releases to the environment are undesirable and, where permitted to make such releases, oil producers should minimise their environmental impact. The bulk of treatment chemicals designed to improve separation and provide clean water for disposal can themselves be harmful to the environment and must conform to very stringent rules to be considered environmentally acceptable, or &apos;'green'&apos;. Here we present data on the development of a green demulsifier for Statoil&apos;s Gullfaks &apos;'A'&apos; platform, which not only meets the very stringent regulations but also exhibits a significant improvement in product performance. While the&apos;&apos;bottle test&apos;&apos; remains the industry standard method for selecting demulsifiers, in recent years the &apos;&apos;mini trial&apos;&apos; method for product selection has gained favour. We describe using a combination of both methods for the development of the novel demulsifier technology described here. (Author) (tk)

  11. &apos;Side-by-side&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2010-07-01

    France is a nuclear power nation. And this is not going to change. However, at the same time, the country is also pursuing massive investments in the expansion of renewable energies. According to France&apos;s President Nicolas Sarkozy, the motto should be: &apos;side-by-side&apos; rather than &apos;one or the other&apos;. For the PV sector, whose success was unbroken during the crisis in 2009, the signal is positive and could mean sustained growth. (orig.)

  12. BLOWIN&apos; IN THE WIND: BOTH &apos;'NEGATIVE'&apos; AND &apos;'POSITIVE'&apos; FEEDBACK IN AN OBSCURED HIGH-z QUASAR

    Energy Technology Data Exchange (ETDEWEB)

    Cresci, G.; Mannucci, F. [INAF-Osservatorio Astrofisco di Arcetri, largo E. Fermi 5, I-50127, Firenze (Italy); Mainieri, V. [European Southern Observatory, Karl-Schwarzschild-strasse 2, D-85748 Garching bei München (Germany); Brusa, M.; Perna, M.; Lanzuisi, G. [Dipartimento di Fisica e Astronomia, Università di Bologna, viale Berti Pichat 6/2, I-40127 Bologna (Italy); Marconi, A. [Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, via G. Sansone 1, I-50019 Sesto F.no, Firenze (Italy); Piconcelli, E.; Feruglio, C.; Fiore, F.; Bongiorno, A. [INAF-Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monteporzio Catone (Italy); Maiolino, R. [Cavendish Laboratory, University of Cambridge, 19 J. J. Thomson Avenue, Cambridge (United Kingdom); Merloni, A [Max Planck Institut für Extraterrestrische Physik, Giessenbachstrasse 1, D-85748 Garching bei München (Germany); Schramm, M.; Silverman, J. D. [Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, the University of Tokyo, Kashiwanoha 5-1-5, Kashiwa-shi, Chiba 277-8568 (Japan); Civano, F., E-mail: gcresci@arcetri.astro.it [Department of Physics and Yale Center for Astronomy and Astrophysics, Yale University, PO Box 208121, New Haven, CT 06520-8121 (United States)

    2015-01-20

    Quasar feedback in the form of powerful outflows is invoked as a key mechanism to quench star formation in galaxies, preventing massive galaxies to overgrow and producing the red colors of ellipticals. On the other hand, some models are also requiring &apos;'positive'&apos; active galactic nucleus feedback, inducing star formation in the host galaxy through enhanced gas pressure in the interstellar medium. However, finding observational evidence of the effects of both types of feedback is still one of the main challenges of extragalactic astronomy, as few observations of energetic and extended radiatively driven winds are available. Here we present SINFONI near infrared integral field spectroscopy of XID2028, an obscured, radio-quiet z = 1.59 QSO detected in the XMM-COSMOS survey, in which we clearly resolve a fast (1500 km s{sup –1}) and extended (up to 13 kpc from the black hole) outflow in the [O III] lines emitting gas, whose large velocity and outflow rate are not sustainable by star formation only. The narrow component of Hα emission and the rest frame U-band flux from Hubble Space Telescope/Advanced Camera for Surveys imaging enable to map the current star formation in the host galaxy: both tracers independently show that the outflow position lies in the center of an empty cavity surrounded by star forming regions on its edge. The outflow is therefore removing the gas from the host galaxy (&apos;&apos;negative feedback&apos;&apos;), but also triggering star formation by outflow induced pressure at the edges (&apos;&apos;positive feedback&apos;&apos;). XID2028 represents the first example of a host galaxy showing both types of feedback simultaneously at work.

  13. "!Luces, Camara, Accion!": A Classroom Teacher Research Analysis of Dual Language Students Translanguaging through One-Act Plays

    Science.gov (United States)

    Escalante, Lora Beth

    2012-01-01

    The study investigates how language is used among 17 children in a dual language classroom as they create academic-based one-act plays in conjunction with social studies instruction. Examining over 20 hours of video, the teacher researcher analyzes students&apos; use of translanguaging during cooperative groupings in order to co-accomplish an…

  14. ApoE polymorphisms in narcolepsy

    Directory of Open Access Journals (Sweden)

    Kasten Meike

    2001-08-01

    Full Text Available Summary Background Narcolepsy is a common neuropsychiatric disorder characterized by increased daytime sleepiness, cataplexy and hypnagogic hallucinations. Deficiency of the hypocretin neurotransmitter system was shown to be involved in the pathogenesis of narcolepsy in animals and men. There are several hints that neurodegeneration of hypocretin producing neurons in the hypothalamus is the pathological correlate of narcolepsy. The ApoE4 allele is a major contributing factor to early-onset neuronal degeneration in Alzheimer disease and other neurodegenerative diseases as well. Methods To clarify whether the ApoE4 phenotype predisposes to narcolepsy or associates with an earlier disease onset, we have genotyped the ApoE gene in 103 patients with narcolepsy and 101 healthy controls. Results The frequency of the E4 allele of the ApoE gene was 11% in the patient and 15% in the control groups. Furthermore, the mean age of onset did not differ between the ApoE4+ and ApoE4- patient groups. Conclusion Our results exclude the ApoE4 allele as a major risk factor for narcolepsy.

  15. Pulpal response of dogs primary teeth to an adhesive system or to a calcium hydroxide cement Resposta pulpar de dentes decíduos de cães a um sistema adesivo ou ao cimento de hidróxido de cálcio

    Directory of Open Access Journals (Sweden)

    Rosângela Almeida RIBEIRO

    2000-03-01

    Full Text Available The aim of this study was to evaluate the pulpal response of dogs primary teeth to an adhesive system or to a calcium hidroxide cement after mechanic exposure of the pulp. Three mongrel dogs were used and ten class V cavities were prepared on their teeth. A mechanic pulp exposure was produced with a sterile exploratory probe in the central portion of each cavity and bleeding was controlled with dry sterile cotton pellets. Enamel, dentin and the site of the pulp exposure of five teeth were etched with 35% phosphoric acid followed by the application of an adhesive system (Scotchbond Multi-Purpose - 3M. In the other five teeth, calcium hydroxide cement (Hydro C - Dentsply was applied on the site of the pulp exposition before application of the adhesive system (Scotchbond Multi-Purpose - 3M. All teeth were restored with a resin composite (Z-100 - 3M. After 7, 30 or 45 days the dogs were anesthetized and perfused with saline followed by a solution of neutral buffered formalin. Maxilla and mandible were sectioned into three parts and placed in a solution for demineralization. Following bone demineralization, all teeth were cut, trimmed, embedded in paraffin and longitudinally cut. Then, the teeth were stained with hematoxilin and eosin and observed under a light microscope. The results obtained with the treatments proposed in this study showed the presence and persistence of an inflammatory response of different intensities at the three experimental periods. There was no variation in the inflammatory response regarding the different treatments performed.O objetivo deste estudo foi de avaliar a resposta pulpar de dentes decíduos de cães à um sistema adesivo ou a um cimento de hidróxido de cálcio após exposição mecânica da polpa. Foram utilizados três cães sem raça definida, e nestes foram realizados dez preparos cavitários classe V. Uma exposição pulpar mecânica foi produzida com uma sonda exploradora esterilizada, na porção central

  16. Korea&apos;s 1-watt plan &apos;&apos;Standby Korea 2010&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Yungrae

    2010-09-15

    Korea announced standby power of all electronics shall be reduced to below 1W by 2010. Ministry of Knowledge Economy (MKE, Korean government) and Korea Energy Management Corporation (KEMCO) established &apos;&apos;Standby Korea 2010&apos;&apos; which is a roadmap to limit standby power below 1W by 2010. Korea implemented mandatory program over a relatively short period of time, incorporating the better elements from the more established national program and adding new initiatives, such as the threat of using mandatory warning label for products that fail to meet standby power targets.

  17. &apos;&apos;When Cost Measures Contradict&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Montgomery, W. D.; Smith, A. E.; Biggar, S. L.; Bernstein, P. M.

    2003-05-09

    When regulators put forward new economic or regulatory policies, there is a need to compare the costs and benefits of these new policies to existing policies and other alternatives to determine which policy is most cost-effective. For command and control policies, it is quite difficult to compute costs, but for more market-based policies, economists have had a great deal of success employing general equilibrium models to assess a policy&apos;s costs. Not all cost measures, however, arrive at the same ranking. Furthermore, cost measures can produce contradictory results for a specific policy. These problems make it difficult for a policy-maker to determine the best policy. For a cost measures to be of value, one would like to be confident of two things. First one wants to be sure whether the policy is a winner or loser. Second, one wants to be confident that a measure produces the correct policy ranking. That is, one wants to have confidence in a policy measure&apos;s ability to correctly rank policies from most beneficial to most harmful. This paper analyzes empirically these two properties of different costs measures as they pertain to assessing the costs of the carbon abatement policies, especially the Kyoto Protocol, under alternative assumptions about implementation.

  18. Software in the DOE: The Hidden Overhead of&apos;&apos;The Build&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Kumfert, G; Epperly, T

    2002-02-28

    &apos;&apos;The Build&apos;&apos; is the infrastructure needed to convert software from source code to usable form. It is intimately tied to the software it supports, knowing about every file and automating every transformation needed to produce a working program. Every developer knows that a project spends some labor overhead on &apos;&apos;the build.&apos;&apos; How big is this hidden overhead? According to 34 scientific software developers we surveyed at Lawrence Livermore National Labs, among colleagues at other DOE labs, and a handful of academics the &apos;'perceived'&apos; overhead averages around 12%. Individual cases of 20% to 30% were not uncommon. In one project claiming a 20% overhead, we found supporting evidence by combing through their CVS repository.

  19. A &apos;'LIGHT'&apos;, CENTRALLY CONCENTRATED MILKY WAY HALO?

    Energy Technology Data Exchange (ETDEWEB)

    Rashkov, Valery; Pillepich, Annalisa; Deason, Alis J.; Madau, Piero [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States); Rockosi, Constance M. [Department of Astronomy and Astrophysics, UCO/Lock Observatory, University of California, Santa Cruz, CA 95064 (United States); Guedes, Javiera [Institute for Astronomy, ETH Zurich, 8093 Zurich (Switzerland); Mayer, Lucio [Institute of Theoretical Physics, University of Zurich, CH-9057 Zurich (Switzerland)

    2013-08-20

    We discuss a novel approach to &apos;'weighing'&apos; the Milky Way (MW) dark matter halo, one that combines the latest samples of halo stars selected from the Sloan Digital Sky Survey (SDSS) with state of the art numerical simulations of MW analogs. The fully cosmological runs employed in the present study include &apos;'Eris'&apos;, one of the highest resolution hydrodynamical simulations of the formation of a M{sub vir} = 8 Multiplication-Sign 10{sup 11} M{sub Sun} late-type spiral, and the dark-matter-only M{sub vir} = 1.7 Multiplication-Sign 10{sup 12} M{sub Sun} &apos;&apos;Via Lactea II&apos;&apos; (VLII) simulation. Eris provides an excellent laboratory for creating mock SDSS samples of tracer halo stars, and we successfully compare their density, velocity anisotropy, and radial velocity dispersion profiles with the observational data. Most mock SDSS realizations show the same &apos;&apos;cold veil&apos;&apos; recently observed in the distant stellar halo of the MW, with tracers as cold as {sigma}{sub los} Almost-Equal-To 50 km s{sup -1} between 100 and 150 kpc. Controlled experiments based on the integration of the spherical Jeans equation as well as a particle tagging technique applied to VLII show that a &apos;'heavy'&apos; M{sub vir} Almost-Equal-To 2 Multiplication-Sign 10{sup 12} M{sub Sun} realistic host produces a poor fit to the kinematic SDSS data. We argue that these results offer added evidence for a &apos;'light'&apos;, centrally concentrated MW halo.

  20. AREVA &apos;&apos;Sustainable Cycle Solutions&apos;&apos;

    International Nuclear Information System (INIS)

    Almost three years after the Fukushima events, the nuclear industry has shown its capacity to respond to first additional safety requirements and continues working closely with the regulators and involved stakeholders for further improvements. Continued growth is still anticipated and several international organizations have confirmed 2035 scenarios close to or above 600 GWe of installed nuclear capacity. Securing and optimizing the fuel cycle is crucial to ensure the sustainability of such a nuclear program in the medium term. Rethinking fuel cycle schemes is also decisive to prepare long term transitions to next generations of reactors. R&D and Innovation shall remain a cornerstone of this sustainable development. Countries with significant or growing nuclear fleets have confirmed their commitment or plans to recycle. This is notably the case in China, France, India, Japan, the Netherlands, South Korea, and the Russian federation. Most of other nuclear countries are currently rethinking their used fuel management, taking into account; the geopolitical context and the international framework, including multilateral agreements, the legacy of their past fuel cycle policies,the cornerstones of energy policies&apos; evolution such as the targets set for energy independence, as well as the level of their ambition in terms of nuclear park evolution, the involvement of concerned stakeholders in the decision making process, the regulatory and legal frameworks evolutions, the operational challenges that the nuclear actors are currently facing, in particular the increasing Constraints related to reactor pool storage, or to very long term dry storage. With the foreseen nuclear development, the used fuel backlog will continue to grow for several decades. Bolstered by a 40 years experience, recycling has been contributing to further increase safety while offering main operational, environmental, global acceptance benefits, among others However even though recycling

  1. Rapporteurs&apos; Report

    Energy Technology Data Exchange (ETDEWEB)

    Isaacs, T H

    2004-02-11

    This Third FSC workshop focused on, &apos;&apos;Understanding the factors that influence public perception and confidence in the area of radioactive waste management...&apos;&apos; The workshop was held in Finland in close cooperation with Finnish stakeholders. This was most appropriate because of the recent successes in achieving positive decisions at the municipal, governmental, and Parliamentary levels, allowing the Finnish high-level radioactive waste repository program to proceed, including the identification of a proposed site. The workshop objective was to gain insight in answering the question, &apos;&apos;How did this political and societal decision come about?&apos;&apos;

  2. Effect of vermicast generated from an allelopathic weed lantana (Lantana camara) on seed germination, plant growth, and yield of cluster bean (Cyamopsis tetragonoloba).

    Science.gov (United States)

    Karthikeyan, M; Hussain, N; Gajalakshmi, S; Abbasi, S A

    2014-11-01

    In perhaps the first-ever study of its kind, the effect of vermicompost, derived solely from an allelopathic weed, on the germination, growth, and yield of a botanical species, has been carried out. In test plots, the soil was treated with the vermicompost of lantana (Lantana camara) at the rates of 5, 7.5, and 10 t ha(-1), and cluster bean (Cyamopsis tetragonoloba) was grown on it. The performance of these systems was compared with the systems in which the soil was fortified with inorganic fertilizers (IFs) in concentrations equivalent to those present in the respective vermicompost (VC) treatments. Additionally, a set of control was studied in which the soil was used without fortification by either VC or IF. It was seen that up to 51.5 % greater germination success occurred in the VC treatments compared to controls. VC also supported better plant growth in terms of stem diameter, shoot length, shoot mass, number of leaves, and leaf pigments. The positive impact extended up to fruit yield. In addition, vermicast application enhanced root nodule formation, reduced disease incidence, and allowed for a smaller number of stunted plants. The results indicate that allelopathic ingredients of lantana seem to have been totally eliminated during the course of its vermicomposting and that lantana vermicompost has the potential to support germination, growth, and fruit yield better than equivalent quantities of IFs. PMID:24946699

  3. Effect of vermicast generated from an allelopathic weed lantana (Lantana camara) on seed germination, plant growth, and yield of cluster bean (Cyamopsis tetragonoloba).

    Science.gov (United States)

    Karthikeyan, M; Hussain, N; Gajalakshmi, S; Abbasi, S A

    2014-11-01

    In perhaps the first-ever study of its kind, the effect of vermicompost, derived solely from an allelopathic weed, on the germination, growth, and yield of a botanical species, has been carried out. In test plots, the soil was treated with the vermicompost of lantana (Lantana camara) at the rates of 5, 7.5, and 10 t ha(-1), and cluster bean (Cyamopsis tetragonoloba) was grown on it. The performance of these systems was compared with the systems in which the soil was fortified with inorganic fertilizers (IFs) in concentrations equivalent to those present in the respective vermicompost (VC) treatments. Additionally, a set of control was studied in which the soil was used without fortification by either VC or IF. It was seen that up to 51.5 % greater germination success occurred in the VC treatments compared to controls. VC also supported better plant growth in terms of stem diameter, shoot length, shoot mass, number of leaves, and leaf pigments. The positive impact extended up to fruit yield. In addition, vermicast application enhanced root nodule formation, reduced disease incidence, and allowed for a smaller number of stunted plants. The results indicate that allelopathic ingredients of lantana seem to have been totally eliminated during the course of its vermicomposting and that lantana vermicompost has the potential to support germination, growth, and fruit yield better than equivalent quantities of IFs.

  4. Science closes in on the &apos;&apos;Holy Grail&apos;&apos; of solar energy

    Energy Technology Data Exchange (ETDEWEB)

    One of nature&apos;s best kept secrets &apos;&apos;how green plants and algae turn sunlight into useful energy&apos;&apos; is discussed. The work of Arizona State University chemists Devens Gust and Thomas Moore in the area of photosynthesis is described. The ultimate photochemical battery may be years away, but it was only seven years ago that these two scientists began working on a model that will someday make it possible.

  5. X-ray fluorescence analysis of the Venus rocks by the &apos;&apos;Venera-13&apos; and &apos;&apos;Venera-14&apos;&apos; space probes

    Energy Technology Data Exchange (ETDEWEB)

    Surkov, Yu.A.; Shcheglov, O.P.; Moskaleva, L.P.; Kirichenko, V.S.; Dudin, A.D.; Gimadov, V.L.; Kurochkin, S.S.; Rasputnyj, V.N. (AN SSSR, Moscow. Inst. Geokhimii i Analiticheskoj Khimii)

    1982-08-01

    The device and X-ray measurement technique, used for the elemental analysis of Venerus&apos; rocks by the &apos;&apos;Venera-13&apos;&apos; and &apos;&apos;Venera-14&apos;&apos; space probes, are described. The X-ray fluorescence spectrometer device, characteristics of Fe/sup 55/ and Pu/sup 238/ radioisotope sources, used in the device, the proportional counter and the structural flowsheet of the pulse amplitude analyzer, is briefly represented. Venerus&apos; rock is sampled by a special coring tool, transported through the sluice port into the lander and irradiated by radioisotope sources. The excited fluorescence is recorded by a 256-channel spectrometer. The information is transmitted to the Earth telemetrically. The devices of both landers operate reliably. The chemical composition of the rock samples is determined as a result of these experiments.

  6. &apos;&apos;Social capitalism&apos;&apos; in renewable energy generation: China and California comparisons

    Energy Technology Data Exchange (ETDEWEB)

    Clark, Woodrow W. II.; Li, Xing [Clark Strategic Partners, PO Box 17975, Beverly Hills, CA 90210 (United States)

    2010-03-15

    With a population of over 1.3 billion people, demand for renewable energy is expected to grow to a USD $12 billion market in the near term. Under Renewable Energy Law (REL) in February 2005 in the People&apos;s Republic of China (PRC) passed by the National Congress, renewable energy projects will be able to receive a range of financial incentives starting in 2006, which will more than double the PRC current renewable energy generation from 7% to 15% by 2020. Most of the increase will be in hydroelectric generated power. Nonetheless, the nation and especially the provinces are moving rapidly to develop a wide range of renewable energy generation including solar, wind, geothermal and run of the river. Because China practices &apos;&apos;social capitalism&apos;&apos; as expressed in it&apos;s recurrent Five Year National Plans since 1999, the national government and all the provinces have programs, unlike many western and industrialized nations, to &apos;'plan'&apos; and provide for infrastructures. This paper concerns only the energy infrastructure sector and renewable energy generation in particular. The planning process includes financial incentives and investments which are a major part of the Chinese law focused on &apos;&apos;encouraging foreign investment industries&apos;&apos;. The key part of the law is to guarantee long-term power purchase agreements with state owned and controlled &apos;'utilities'&apos;. In short, China may have gotten the economics of the energy sector correct in its concern for planning and finance. The paper develops these energy infrastructure ideas along with the legal and financial requirements as &apos;'lessons'&apos; learned from the USA and especially California. These lessons now apply to China and allow it to learn from the American mistakes. Empirical data will be drawn from work done in China that examine the renewable energy generation and infrastructures and hence allow the RPC and its

  7. Utilization of demolished composition materials of &apos;'ClimateHouses'&apos;; Verwertung des Abbruchmaterials von &apos;'KlimaHaeusern'&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Knappe, Florian; Diebel, Anton; Reinhardt, Joachim; Theis, Stefanie [ifeu-Institut fuer Energie- und Umweltforschung GmbH, Heidelberg (Germany); Leiter, Elisabeth; Rosanelli, Rupert; Vieider, Andreas [Syneco, Bolzano (Italy); Feess, Walter [Firma Feess Erdbau, Kirchheim/Teck (Germany); Bonadio, Martina

    2012-09-15

    In the year 1992, an innovative concept of energy conservation was developed in order to improve the energy standards of new buildings as well as existing buildings. The model &apos;ClimateHouse&apos; has to reduce significantly the energy demand in the area of needs building and living as well as the use of fossil resources and negative impacts on the climate. First of all the authors of the contribution under consideration report on and balance the situation in the province South Tyrol with respect to the design of &apos;ClimateHouses&apos; and the use of construction materials for &apos;ClimateHouses&apos;. This also is valid for solar panels. Within a second step the authors report on how the waste management has to be arranged to other waste mass flows and waste compositions.

  8. Report of working committee 4 &apos;&apos;transmission of gases&apos;&apos;; Rapport de la commission 4 &apos;&apos;transport des gaz&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Volskij, E.

    2000-07-01

    Report of the WOC 4 Transmission contains the results of works carried out during 1998-2000 by the Committee members and the three study groups. The most important is: - review of actual situation and prospects for the gas pipeline transmission system development; - report of SG-4.1 &apos;Pipeline Ageing and Rehabilitation&apos;, including analysis of pipeline steels, welding and insulation, methods of rehabilitation, the program of pipeline reconstruction; - report of SG-4.2 &apos;Emission monitoring&apos; including appraisal of gas losses and methods of lowering of methane and other emissions of the gas units in different countries; - report of SG-4.3 &apos;Pipelines Integrity Management and Safety&apos; including basic information on gas pipeline failure intensity, key elements of the Integrity Management System of the gas transmission, methods of risk evaluation and the effectiveness of the approach. (authors)

  9. &apos;&apos;Substantial Margin of Safety&apos;&apos;: A New Approach to HLW Disposition

    Energy Technology Data Exchange (ETDEWEB)

    Power, M. S.

    2002-02-28

    In the Spring of 2001, the National Research Council published &apos;&apos;Disposition of High-Level Waste and Spent Nuclear Fuel: The Continuing Societal and Technical Challenges.&apos;&apos; (1) While finding the technical case for deep geologic disposal of high-level waste and spent fuel robust, the report focused new attention on societal issues and decision-making. The report appeared against a backdrop of heightened controversy about the development of a geologic repository at Yucca Mountain, Nevada. This paper identifies three principal reasons for the National Research Council committee&apos;s finding that &apos;&apos;Difficulties in achieving public support have been seriously underestimated in the past, and opportunities to gain public trust have been missed.&apos;&apos;

  10. Technologies for the treatment of the sulfur dioxide and nitrogen oxides generated by the combustion in open chamber; Tecnologias para el tratamiento de dioxido de azufre y oxidos de nitrogeno generados por la combustion en camara abierta

    Energy Technology Data Exchange (ETDEWEB)

    Salazar Villalpando, Maria Dolores [Instituto Mexicano del Petroleo, Mexico, D. F. (Mexico)

    1992-12-31

    In general terms, there are only three ways of avoiding the sulfur dioxide and the nitrogen oxides, generated by the combustion in open chamber, from contaminating the air; the first one is utilizing low sulfur and nitrogen content fuels, the second one is by controlling the parameters that affect the combustion and the third one to treat and/or clean the gases before exhausting them to the air. In this document, some of the treatments for diminishing the pollutant emissions generated by the combustion in open chamber, are presented. [Espanol] En terminos generales, solo existen 3 maneras de evitar que el dioxido de azufre y oxidos de nitrogeno generados por la combustion en camara abierta sigan contaminando el aire, la primera es utilizar un combustible de bajo contenido de azufre y nitrogeno, la segunda es controlar los parametros que afectan la combustion, y la tercera es tratar y/o limpiar los gases antes de emitirlos a la atmosfera. En este documento se presentan algunos tratamientos para disminuir las emisiones de contaminantes generados por la combustion en camara abierta.

  11. &apos;et&apos; special: &apos;&apos;E-world of energy&apos;&apos;; &apos;et&apos;-special: &apos;&apos;E-world of energy&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2001-02-01

    The &apos;et&apos; special on the conference &apos;E-world of energy&apos;, held from February 13 - 15, 2001 in Essen (Germany) presents contributions of experts who offer solutions to issues and many topical questions arising in the business of traders and utilities as participants of (international) energy markets at various stages of transition towards workable competition. The translated titles of the 15 contributions reproduced in this &apos;et&apos; special indicate the major contents of the conference papers: 1. Internet-based wholesale power trading as a competitive option to the power exchange. 2. Forward graphs in European electricity markets. 3. Portfolio management in energy trading. 4. Risk management concepts in energy trading. 5. E-commerce as a driving force of a change in the energy markets. 6. eHuman resources management - a vital aspect of corporate success. 7. A brand policy for electricity? 8. Is it really only the price that counts for the customers? 9. The City Power network: an example of successful customer loyalty strategy for local and regional utilities. 10. The Call Center, an important instrument for customer loyalty programmes. 11. eCommerce or eLlusion? 12. eBusiness as a corporate strategy. 13. Meeting the challenges of increasing IT requirements. 14. IT solutions for transmission and distribution network management. 15. Target costing - pinpointed cost planning and control for the energy supply industry. (orig./CB) [German] In dem &apos;et&apos;-Special zur Konferenz &apos;E-world of energy&apos;, die vom 13.- 15. Februar 2001 in Essen stattfand, bieten Experten Loesungsvorschlaege fuer die aktuellen Fragen und Probleme an, die sich auf dem Weg zu liberalisierten Energiemaerkten stellen. Die folgenden Titel der 15 Beitraege geben eine Uebersicht ueber den Inhalt der Konferenzbeitraege. Themen: 1. Internetbasierte Grosshandelsmaerkte als Konkurrenz zu Energieboersen 2. Forward-Kurven in europaeischen Strommaerkten 3

  12. Safety of the &apos;'man-machine-environment'&apos; system during well drilling

    Energy Technology Data Exchange (ETDEWEB)

    Fedorenko, V.I.; Fedorov, V.A.; Loginovskiy, V.I.; Nugayev, R.Ya.

    1982-01-01

    A review is given of safety of the oil and gas well drilling process, which depends on the correspondence and organization of the interaction of all components of the &apos;'man-machine-environment'&apos; system. The reasons for accidents, dangerous situations and emergencies are analyzed. An examination is made of the ergonomic characteristics of the system, questions of the study and development of ergonomic requirements for work site design at a drilling rig, and possible ways of improving these indices. Certain equipment is described that ensures safety of the &apos;'man-machine-environment'&apos; system during well drilling, improves the microclimatic working conditions, and eliminates shortcomings in equipment design.

  13. Cloning and Expression of Apolipoprotein E3 and Its Variant apoE2 and apoE4

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    In order to obtain three isoforms of apolipoprotein E (apoE), the cDNA encoding apoE3 was obtained by RT-PCR from normal human liver tissue. Site-directed mutagenesis was used to obtain the cDNAs encoding apoE2 and apoE4 isoforms. The 3 cDNAs were subcloned into vector pGEM-3Z and verified by DNA sequencing. The expression recombinant which can express the target protein as a (His) 6-tagged fusion was constructed by subcloning apoE cDNA into vector pT7-PL. The purified proteins were gained by Ni-NTA column. The SDS-PAGE results revealed the 6 His fusion proteins (apoE2, apoE3 and apoE4) were correctly expressed and purified successfully.

  14. Radiologically visible fecal gas patterns in &apos;'normal'&apos; newborns and young infants

    Energy Technology Data Exchange (ETDEWEB)

    Patriquin, H.B.; Fisch, C.; Bureau, M.; Black, R.

    1984-02-01

    A prospective study of abdominal and chest films of 212 babies without symptoms of intra-abdominal disease, aged 1 day-12 weeks, showed that the bubbly &apos;&apos;fecal pattern&apos;&apos; normally seen in older children is rare in young premature babies in the first two weeks of life. When it is seen, it may represent intramural air bubbles and signal the presence of necrotizing enterocolitis.

  15. Role of glaciers in watershed hydrology: &apos;&apos;Himalayan catchment&apos;&apos; perspective

    OpenAIRE

    R. J. Thayyen; J. T. Gergan

    2009-01-01

    A large number of Himalayan glacier catchments are under the influence of humid climate with snowfall in winter (November–April) and South-West monsoon in summer (June–September) dominating the regional hydrology. Such catchments are defined as &apos;&apos;Himalayan catchment&apos;&apos;, where the glacier melt water contributes to the river flow during the period of annual high flows produced by the monsoon. Other two major glacio-hydrological regimes of the Himalaya are winter snow do...

  16. Moessbauer spectroscopic and electrochemical studies on 1&apos;, 1&apos;'&apos;-dihalobiferrocenes

    Energy Technology Data Exchange (ETDEWEB)

    Motoyama, Izumi; Suto, Kyoko; Katada, Motomi; Sano, Hirotoshi (Tokyo Metropolitan Univ. (Japan). Faculty of Science)

    1983-08-01

    In the Mossbauer spectroscopic studies on the triiodide salts of a series of 1&apos;,1&apos;'&apos;-dihalobiferrocenes, it has been found that the monocations of diiodo- and dibromobiferrocene show averaged valence states of iron atoms, while the monocation salt of dichlorobiferrocene shows a trapped valence state of iron atoms. On the other hand, no difference has been found in the half-wave potentials of the halobiferrocenes.

  17. Development of an object oriented lattice QCD code &apos;'Bridge++'&apos;

    International Nuclear Information System (INIS)

    We are developing a new lattice QCD code set &apos;'Bridge++'&apos; aiming at extensible, readable, and portable workbench for QCD simulations, while keeping a high performance at the same time. Bridge++ covers conventional lattice actions and numerical algorithms. The code set is constructed in C++ with an object oriented programming. In this paper we describe fundamental ingredients of the code and the current status of development

  18. Control of releases of radioactive aerosols from object &apos;'Ukryttya'&apos; in 2014

    International Nuclear Information System (INIS)

    The results of control of radioactive particulate emission are presented from the object &apos;'Ukryttya'&apos; in 2014. The maximal rate of unorganized releases of beta-radiating products of Chernobyl accident was in winter period and reached 3.6 MBq/day. The concentration of long-lived beta-radiating aerosols released in atmosphere from system &apos;'Bypass'&apos; was within the range 0.3 - 5 Bq/m3 (maximal concentration was 14 Bq/m3). Them carriers were particles with active median aerodynamic diameter (AMAD) 0.6 - 6 μm. Mean ratio of concentrations were: 137Cs/241Am = 97 i 241Am/154Eu = 6.2. The concentration of 212Pb - daughter products of thoron consisted as a rule 0.8 - 4 Bq/m3. Maximal concentration of 212Pb aerosols was 9 Bq/m3. The relation of concentrations of daughter products of radon and thoron and 212Pb were about 4. They have AMAD 0.06 - 0.3 μm. A volume activity and dispersity of radioactive aerosols in releases from object &apos;'Ukryttya'&apos; remain constant the last ten years

  19. The atmospheric cycling of radiomethane and the &apos;&apos;fossil fraction&apos;&apos; of the methane source

    OpenAIRE

    K. R. Lassey; Lowe, D. C.; Smith, A M

    2006-01-01

    The cycling of 14CH4 (&apos;'radiomethane'&apos;) through the atmosphere has been strongly perturbed in the industrial era by the release of 14C-free methane from geologic reservoirs (&apos;&apos;fossil methane&apos;&apos; emissions), and in the nuclear era, especially since ca 1970, by the direct release of nucleogenic radiomethane from nuclear power facilities. Contemporary measurements of atmospheric radiomethan...

  20. &apos;&apos;Activity based costing&apos;&apos; in radiology; &apos;&apos;Activity based costing&apos;&apos; in der Radiologie

    Energy Technology Data Exchange (ETDEWEB)

    Klose, K.J. [Klinik fuer Strahlendiagnostik, Medizinisches Zentrum fuer Radiologie, Philipps-Universitaet, Marburg (Germany); Boettcher, J. [pphc GmbH, Ammersbeck (Germany)

    2002-05-01

    Background: The introduction of diagnosis related groups for reimbursement of hospital services in Germany (g-drg) demands for a reconsideration of utilization of radiological products and costs related to them. Methods: Traditional cost accounting as approach to internal, department related budgets are compared with the accounting method of activity based costing (ABC). The steps, which are necessary to implement ABC in radiology are developed.Conclusions: The introduction of a process-oriented cost analysis is feasible for radiology departments. ABC plays a central role in the set-up of decentralized controlling functions within this institutions. The implementation seems to be a strategic challenge for department managers to get more appropriate data for adequate enterprise decisions. The necessary steps of process analysis can be used for other purposes (Certification, digital migration) as well. (orig.) [German] Hintergrund. Die Oekonomisierung der Medizin in Deutschland, die in der beabsichtigten Einfuehrung der kostenhomogenen Verguetungsklassen nach den &apos;&apos;diagnosis related groups - DRG&apos;s'&apos; ihren vorlaeufigen Hoehepunkt finden soll, erfordert eine Neuorientierung im Einsatz und in der Beurteilung der Wirtschaftlichkeit radiologischer Verfahren.Methode. Traditionelle Kostenrechnungen bzw. Verfahren zur internen Budgetierung werden der Prozesskostenbetrachtung (&apos;&apos;activity based costing&apos;&apos; - ABC) gegenuebergestellt, deren auf radiologische Belange zugeschnittene Methodik Schritt fuer Schritt entwickelt wird.Ergebnisse. Die Betrachtung radiologischer Arbeitsprozesse auf der Basis des ABC gestattet anhand der bisher publizierten Ergebnisse eine bessere Einschaetzung von Steuerungsimpulsen, die zu einer Effizienzsteigerung in radiologischen Prozessen fuehren koennen.Schlussfolgerungen. Die Einfuehrung einer prozessorientierten Kostenanalyse ist fuer vielfaeltige Belange einer Radiologieabteilung moeglich. Sie stellt

  1. The German &apos;'Energiewende'&apos;. Evaluation after the Paris-agreement; Die Deutsche Energiewende. Bewertung nach dem Klima-Abkommen von Paris

    Energy Technology Data Exchange (ETDEWEB)

    Roth, Eike

    2016-08-01

    The World-Climate-Summit 2016 in Paris agreed to exacerbated goals for climate protection. This paper will scrutinize whether Germany can comply with its Paris-obligations by continuing the ongoing German &apos;'Energiewende'&apos;. The result is clear-cut: The German &apos;'Energiewende'&apos; is inadequate. Due to the cap-and-trade system of the EU the &apos;''Energiewende'&apos;.

  2. Importance of critical evaluation in quality control of scintillation cameras;Importancia da avaliacao criteriosa no controle de qualidade de camaras de cintilacao

    Energy Technology Data Exchange (ETDEWEB)

    Menezes, V.O.; Machado, M.A.D.; Sampaio, L.J.L.; Silva, D.C. [Hospital Sao Rafael, Salvador, BR (Brazil)

    2009-07-01

    The evaluation of quality control results in nuclear medicine must be performed with a critical view over the conditions the tests are executed. This paper is a result of observations in the routine quality control where we set up didactic &apos;findings&apos; to show the importance of evaluating critical situations while executing the procedures. (author)

  3. European day &apos;&apos;in town, without my car&apos;&apos;; Journee europeen &apos;&apos;en ville, sans ma voiture&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-10-01

    70 million inhabitants took part in the day &apos;&apos;In town, without my car&apos;&apos; on 22 September of this year. It is a great success for this European first. The objective of Energie-Cites association being to promote sustainable local energy policies, that is to say policies aimed at improving energy efficiency, increasing the use of renewable energy sources and limiting nuisance and pollution linked to energy consumption, the association is pleased that this event helped focus public attention on transport. It is indeed in this sector that uncontrolled upswings in energy consumption and greenhouse gas emissions are the most important. This report presents the evaluation of this European initiative and details the actions in some towns. (A.L.B.)

  4. ECU tendon &apos;'dislocation'&apos; in asymptomatic volunteers

    Energy Technology Data Exchange (ETDEWEB)

    Petchprapa, Catherine N. [New York University Langone Medical Center, Hospital for Joint Diseases, Department of Radiology, New York, NY (United States); Meraj, Seema [Zwanger-Pesiri Radiology Group, Lindenhurst, NY (United States); Jain, Nidhi [New York University School of Medicine, New York University Langone Medical Center, Department of Radiology, New York, NY (United States)

    2016-06-15

    Assess extensor carpi ulnaris (ECU) tendon position in the ulnar groove, determine the frequency of tendon &apos;'dislocation'&apos; with the forearm prone, neutral, and supine, and determine if an association exists between ulnar groove morphology and tendon position in asymptomatic volunteers. Axial proton density-weighted MR was performed through the distal radioulnar joint with the forearm prone, neutral, and supine in 38 asymptomatic wrists. The percentage of the tendon located beyond the ulnar-most border of the ulnar groove was recorded. Ulnar groove depth and length was measured and ECU tendon signal was assessed. 15.8 % of tendons remained within the groove in all forearm positions. In 76.3 %, the tendon translated medially from prone to supine. The tendon &apos;'dislocated'&apos; in 0, 10.5, and 39.5 % with the forearm prone, neutral and supine, respectively. In 7.9 % prone, 5.3 % neutral, and 10.5 % supine exams, the tendon was 51-99 % beyond the ulnar border of the ulnar groove. Mean ulnar groove depth and length were 1.6 and 7.7 mm, respectively, with an overall trend towards greater degrees of tendon translation in shorter, shallower ulnar grooves. The ECU tendon shifts in a medial direction when the forearm is supine; however, tendon &apos;'dislocation'&apos; has not been previously documented in asymptomatic volunteers. The ECU tendon medially translated or frankly dislocated from the ulnar groove in the majority of our asymptomatic volunteers, particularly when the forearm is supine. Overall greater degrees of tendon translation were observed in shorter and shallower ulnar grooves. (orig.)

  5. Students&apos;, Guardians&apos;, and Teachers&apos; Perceptions of Student-Led Conferences

    Science.gov (United States)

    Orso, Charlotte Lindsey

    2013-01-01

    The purpose of the study was to examine the ELL and non-ELL students&apos;, guardians&apos;, and the English as a second language (ESL) teachers&apos; perceptions of student-led conferences. Specifically, the study examined if ELL students&apos; and guardians&apos; preferences were similar to non-ELL students&apos; and guardians&apos; preferences…

  6. Nuclear waste disposal. A wicked and highly conflict bearing societal problem; Nukleare Entsorgung. Ein &apos;'wicked'&apos; und hoechst konfliktbehaftetes Gesellschaftsproblem

    Energy Technology Data Exchange (ETDEWEB)

    Brunnengraeber, Achim; Mez, Lutz [Freie Univ. Berlin (Germany). Forschungszentrum fuer Umweltpolitik; Di Nucci, Maria Rosaria; Schreuers, Miranda [Freie Univ. Berlin (Germany)

    2012-12-15

    The final disposal of nuclear wastes is called &apos;'messy'&apos; or &apos;'wicked'&apos; in the political science literature. The highly complicated problems are characterized by a number of features such as intra- and inter-generational aspects and ethical questions. In the case of stakeholders the differences concern ideologies, interests, merits and preferences that cause conflicts. The search for solutions is complicated due to interacting political, social, ecologic, economic and technical aspects. The concepts &apos;&apos;wicked problems&apos;&apos; and &apos;'multi-level-governance'&apos; are promising approaches to solve the complicated situation.

  7. Nuclear scanning in necrotizing progressive &apos;'malignant'&apos; external otitis

    Energy Technology Data Exchange (ETDEWEB)

    Parisier, S.C.; Lucente, F.E.; Som, P.M.; Hirschman, S.Z.; Arnold, L.M.; Roffman, J.D.

    1982-09-01

    The usefulness of radionuclear scanning in the treatment of 18 patients with necrotizing progressive &apos;'malignant'&apos; external otitis is discussed. A Tc 99-m bone scan, a valuable test since results are positive in early cases of osteomyelitis of the temporal bone and base of skull, showed increased uptake in all 18 patients. In 6 patients, Ga-67 citrate scans were obtained at the start of therapy and at 5-6 week intervals thereafter. The serial gallium scans were useful in evaluating the effectiveness of therapy since the uptake decrease with control of infection.

  8. Role of glaciers in watershed hydrology: &apos;&apos;Himalayan catchment&apos;&apos; perspective

    Directory of Open Access Journals (Sweden)

    R. J. Thayyen

    2009-07-01

    Full Text Available A large number of Himalayan glacier catchments are under the influence of humid climate with snowfall in winter (November–April and South-West monsoon in summer (June–September dominating the regional hydrology. Such catchments are defined as &apos;&apos;Himalayan catchment&apos;&apos;, where the glacier melt water contributes to the river flow during the period of annual high flows produced by the monsoon. Other two major glacio-hydrological regimes of the Himalaya are winter snow dominated Alpine catchments of the Kashmir and Karakoram region and cold-arid regions of the Ladakh mountain range. Factors influencing the river flow variations in a &apos;&apos;Himalayan catchment&apos;&apos; were studied in a micro scale glacier catchment in the Garhwal Himalaya, covering an area of 77.8 km2. Discharge data generated from three hydrometric stations established at different altitudes of the Din Gad stream during the summer ablation period of 1998, 1999, 2000, 2001, 2003 and 2004. These data has been analysed along with winter/summer precipitation, temperature and mass balance data of the Dokriani glacier to study the role of the glacier and precipitation in determining the runoff variations along the stream continuum from the glacier snout to 2360 m a.s.l. Study shows that the inter-annual runoff variations in a &apos;&apos;Himalayan glacier catchment&apos;&apos; is directly linked with the precipitation rather than mass balance changes of the glacier. Study suggest that warming induced initial increase of glacier degraded runoff and subsequent decline is a glaciers mass balance response and cannot be translated as river flow response in a &apos;&apos;Himalayan catchment&apos;&apos; as suggested by the IPCC, 2007. Study also suggest that the glacier runoff critically influence the headwater river flows during the years of low summer discharge and proposes that the Himalayan catchment could experience higher river flows and positive

  9. &apos;&apos;True believers&apos;&apos; or numerical terrorism at the nuclear power plant

    Energy Technology Data Exchange (ETDEWEB)

    Kraemer, Walter [Technical Univ. Dortmund (Germany). Faculty of Statistics; Arminger, Gerhard [Bergische Univ. Wuppertal (Germany). Schumpeter School of Business and Economics

    2010-09-15

    For decades, there has been a heated debate about whether or not nuclear power plants contribute to childhood cancer in their respective neighbourhoods, with statisticians testifying on both sides. The present paper points to some flaws in the pro-arguments, taking a recent study prepared for the political party &apos;&apos;Buendnis 90 / Gruene&apos;&apos; as a specimen. Typical mistakes include an understatement of the size of tests of significance, disregard of important covariates and extreme reliance on very few selected data points.

  10. The &apos;&apos;Kinetic Stabilizer&apos;&apos;: A Simpler Tandem Mirror Confinement?

    Energy Technology Data Exchange (ETDEWEB)

    Post, R.F.

    2000-06-15

    In the search for better approaches to magnetic fusion it is important to keep in mind the lessons learned in the 50 years that fusion plasma confinement has been studied. One of the lessons learned is that &apos;'closed'&apos; and &apos;'open'&apos; fusion devices differ fundamentally with respect to an important property of their confinement, as follows: Without known exception closed systems such as the tokamak, the stellarator, or the reversed-field pinch, have been found to have their confinement times limited by non-classical, i.e., turbulence-related, processes, leading to the requirement that such systems must be scaled-up in dimensions to sizes much larger than would be the case in the absence of turbulence. By contrast, from the earliest days of fusion research, it has been demonstrated that open magnetic systems of the mirror variety can achieve confinement times close to that associated with classical, i.e., collisional, processes. While these good results have been obtained in both axially symmetric fields and in non-axisymmetric fields, the clearest cases have been those in which the confining fields are solenoidal and axially symmetric. These observations, i.e., of confinement not enhanced by turbulence, can be traced theoretically to such factors as the absence of parallel currents in the plasma, and to the constraints on particle drifts imposed by the adiabatic invariants governing particle confinement in axisymmetric open systems. In the past the MHD instability of axially symmetric open systems has been seen as a barrier to their use. However, theory predicts MHD-stable confinement is achievable if sufficient plasma is present in the &apos;&apos;good curvature&apos;&apos; regions outside the mirrors. This theory has been confirmed by experiments on the Gas Dynamic Trap mirror-based experiment at Novosibirsk, In this paper a new way of exploiting this stabilizing principle, involving creating a localized &apos;&apos

  11. The human apoE7 and apoE4 transgenic mice models

    Institute of Scientific and Technical Information of China (English)

    孙明增; 琦祖和

    2001-01-01

    To scrutinize the disorders caused by human mutant apoE7/apoE4, human apoE4 and E7 transgenic mice were established with microinjection technique to examine molecular genetic phenomena in vivo. The integration and expression of h-apoE mutant genes in transgenic mice were determined with Southern blot, Northern blot and ELISA. The current studies indicated that the transgenes and the phenotypes regarding expression of transgenes could be transmitted stably in transgenic lines. The levels of serum lipid in transgenic mice showed the characteristics of hyperlipidemia. Besides, behavior tests demonstrated the degeneration of learning and memory in transgenic mice. Short life span was observed in 2 transgenic lines. After fed with high lipid food high serum lipid was found both in normal and transgenic mice, but their mechanism regulating lipid metabolism was different. It was also verified that the human apoE mutants located at either N-terminal or C-terminal had the same pathogenesis regarding disorders of lipid metabolism in murine.

  12. Improved Security Via &apos;&apos;Town Crier&apos;&apos; Monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Johnston, R. G.; Garcia, A. R. E.; Pacheco, A. N.

    2003-02-26

    Waste managers are increasingly expected to provide good security for the hazardous materials they marshal. Good security requires, among other things, effective tamper and intrusion detection. We have developed and demonstrated a new method for tamper and intrusion detection which we call the &apos;&apos;town crier method&apos;&apos;. It avoids many of the problems and vulnerabilities associated with traditional approaches, and has significant advantages for hazardous waste transport. We constructed two rudimentary town crier prototype systems, and tested them for monitoring cargo inside a truck. Preliminary results are encouraging.

  13. Implications of effects &apos;&apos;adaptive response&apos;&apos;, &apos;&apos;low-dose hypersensitivity&apos;&apos; und &apos;&apos;bystander effect&apos;&apos; for cancer risk at low doses and low dose rates; Implikationen der Effekte &apos;&apos;adaptive response&apos;&apos;, &apos;&apos;low-dose hypersensitivity&apos;&apos; und &apos;&apos;bystander effect&apos;&apos; fuer das Krebsrisiko bei niedrigen Dosen und Dosenraten

    Energy Technology Data Exchange (ETDEWEB)

    Jacob, P (comp.)

    2006-07-01

    A model for carcinogenesis (the TSCE model) was applied in order to examine the effects of &apos;&apos;Low-dose hypersensitivity (LDH)&apos;&apos; and the &apos;&apos;Bystander effect (BE)&apos;&apos; on the derivation of radiation related cancer mortality risks. LDH has been discovered to occur in the inactivation of cells after acute exposure to low LET radiation. A corresponding version of the TSCE model was applied to the mortality data on the Abomb survivors from Hiroshima and Nagasaki. The BE has been mainly observed in cells after exposure to high LET radiation. A Version of the TSCE model which included the BE was applied to the data on lung cancer mortality from the workers at the Mayak nuclear facilities who were exposed to Plutonium. In general an equally good description of the A-bomb survivor mortality data (for all solid, stomach and lung tumours) was found for the TSCE model and the (conventional) empirical models but fewer parameters were necessary for the TSCE model. The TSCE model which included the effects of radiation induced cell killing resulted in non-linear dose response curves with excess relative risks after exposure at young ages that were generally lower than in the models without cell killing. The main results from TSCE models which included cell killing described by either conventional survival curves or LDH were very similar. A sub multiplicative effect from the interaction of smoking and exposure to plutonium was found to result from the analysis of the Mayak lung cancer mortality data. All models examined resulted in the predominant number of Mayak lung cancer deaths being ascribed to smoking. The interaction between smoking and plutonium exposures was found to be the second largest effect. The TSCE model resulted in lower estimates for the lung cancer excess relative risk per unit plutonium dose than the empirical risk model, but this difference was not found to be statistically significant. The excess relative risk dose responses

  14. Do we need a &apos;&apos;green medicine&apos;&apos;?; Brauchen wir &apos;&apos;Gruene Medizin?&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Bauer, M.; Daschner, F.; Scherrer, M. [Universitaetsklinikum Freiburg (Germany)

    2006-07-01

    Spontaneously, we do associate &apos;&apos;green medicine&apos;&apos; with terms like naturopathy, natural healing substances, herbal active agents, homeopathy, healthy food, preventive medicine and similar things, and finally we think of ecology. This is the focus of the following article. First of all, the following question arises: Are there any environment-friendly and cost-saving alternatives to the present medicine? There is an increasing number of environment-caused diseases. Therefore, a medicine not coping with the environment is not credible. In today&apos;s medicine, for example, there are too many persistent detergents, water-polluting disinfectants, and many disposable materials. Too much water ist consumed, whereas the use of renewable energies is only limited. And too little natural healing methods are applied in diagnostics and therapy. Presently, in Germany, 16,7 million in-patients are treated in Germany, 1,16 million out-patients have surgeries in 2166 hospitals by ca. 1,1 million medical staff. All this work needs energy and materials which bring various risks to environment and the patients. During the last two decades, however, many efforts were made in the field of environment protection in medicine. There is hardly a hospital left which has not taken measures of protecting the environment. In the branch-specific quality management system KTQ (=cooperation for transparency and quality in the health system). environment protection measures are interrogated and systematically assessed.

  15. The &apos;mini&apos; and &apos;micro&apos; energy sources and their limitations; Les &apos;'minis'&apos; et &apos;'micros'&apos; sources d&apos;energie et leurs limites

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2004-03-01

    The &apos;Science and defense 2003&apos; colloquium took place in Paris on December 2 and 3. It was organized by the general delegation of armament (DGA), the French atomic energy commission (CEA) with the participation of the national center of scientific research (CNRS) and the French ministry of research and new technologies. The main topic was the needs and the solutions implemented in the domain of energy sources both for civil and military portable applications. This article make a general summary of the content of this colloquium only in the domain of small power energy sources: emergence of new miniaturized portable devices (phones, computers, cameras, autonomous medical systems, wireless communication systems, soldiers equipments, drones etc..), improvement of batteries energy density and price, new needs linked with new functionalities, technological challenges (energy generation and recovery systems, miniaturized fuel-cells, use of recoverable energy sources, implantation of power sources in the human body etc..), new technological files (new electrode materials, micron- or sub-micron scale mechanical and electronic components, sensors, micro-motors, transfer of microelectronics technologies, hybrid systems..), international competition. (J.S.)

  16. &apos;&apos;Measuring the Costs of Climate Change Policies&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Montgomery, W. D.; Smith, A. E.; Biggar, S. L.; Bernstein, P.M.

    2003-05-09

    Studies of the costs of climate change policies have utilized a variety of measures or metrics for summarizing costs. The leading economic models have utilized GNP, GDP, the &apos;&apos;area under a marginal cost curve,&apos;&apos; the discounted present value of consumption, and a welfare measure taken directly from the utility function of the model&apos;s representative agent (the &apos;&apos;Equivalent Variation&apos;&apos;). Even when calculated using a single model, these metrics do not necessarily give similar magnitudes of costs or even rank policies consistently. This paper discusses in non-technical terms the economic concepts lying behind each concept, the theoretical basis for expecting each measure to provide a consistent ranking of policies, and the reasons why different measures provide different rankings. It identifies a method of calculating the &apos;&apos;Equivalent Variation&apos;&apos; as theoretically superior to the other cost metrics in ranking policies. When regulators put forward new economic or regulatory policies, there is a need to compare the costs and benefits of these new policies to existing policies and other alternatives to determine which policy is most cost-effective. For command and control policies, it is quite difficult to compute costs, but for more market-based policies, economists have had a great deal of success employing general equilibrium models to assess a policy&apos;s costs. Not all cost measures, however, arrive at the same ranking. Furthermore, cost measures can produce contradictory results for a specific policy. These problems make it difficult for a policy-maker to determine the best policy. For a cost measures to be of value, one would like to be confident of two things. First one wants to be sure whether the policy is a winner or loser. Second, one wants to be confident that a measure produces the correct policy ranking. That is, one wants to have confidence in a policy measure&apos;s ability to correctly rank

  17. Role of the &apos;&apos;fountain effect&apos;&apos; in the equatorial ionosphere in the prolonged retention of radioactive products of the &apos;'Starfish'&apos; explosion at F-region altitudes

    Energy Technology Data Exchange (ETDEWEB)

    Bolyunova, A.D.

    1975-01-01

    The effect of prolonged retention of radioactive products (fission fragments) following the &apos;'Starfish'&apos; thermonuclear explosion at F-region altitudes of the ionosphere of lower and middle latitudes discovered on the Kosmos 3, Kosmos 5, and Kosmos 6 satellites is analyzed from the point of view of concepts concerning ion transport processes in the equatorial ionosphere. A qualitative explanation for this phenomenon based on the &apos;&apos;fountain effect&apos;&apos; in the equatorial ionosphere is proposed which is in satisfactory agreement with experiment.

  18. &apos;Teleparallel&apos; dark energy

    Energy Technology Data Exchange (ETDEWEB)

    Geng, Chao-Qiang, E-mail: geng@phys.nthu.edu.tw [Department of Physics, National Tsing Hua University, Hsinchu 300, Taiwan (China); National Center for Theoretical Sciences, Hsinchu 300, Taiwan (China); Lee, Chung-Chi, E-mail: g9522545@oz.nthu.edu.tw [Department of Physics, National Tsing Hua University, Hsinchu 300, Taiwan (China); Saridakis, Emmanuel N., E-mail: Emmanuel_Saridakis@baylor.edu [CASPER, Physics Department, Baylor University, Waco, TX 76798-7310 (United States); National Center for Theoretical Sciences, Hsinchu 300, Taiwan (China); Wu, Yi-Peng, E-mail: s9822508@m98.nthu.edu.tw [Department of Physics, National Tsing Hua University, Hsinchu 300, Taiwan (China)

    2011-10-25

    Using the &apos;teleparallel&apos; equivalent of General Relativity as the gravitational sector, which is based on torsion instead of curvature, we add a canonical scalar field, allowing for a nonminimal coupling with gravity. Although the minimal case is completely equivalent to standard quintessence, the nonminimal scenario has a richer structure, exhibiting quintessence-like or phantom-like behavior, or experiencing the phantom-divide crossing. The richer structure is manifested in the absence of a conformal transformation to an equivalent minimally-coupled model.

  19. Novel action of apolipoprotein E (ApoE: ApoE isoform specifically inhibits lipid-particle-mediated cholesterol release from neurons

    Directory of Open Access Journals (Sweden)

    Fujita Shinobu C

    2007-05-01

    Full Text Available Abstract Background Since the majority of apolipoprotein E (apoE existing in the cerebrospinal fluid is associated with high-density lipoprotein (HDL, one should focus on the role of the apoE-HDL complex rather than on that of free apoE in cholesterol metabolism in the central nervous system. However, the apoE-isoform-specific effect of apoE-HDL on cholesterol transport remains unclarified. Results Here we show that apoE3-HDL induced a marked cholesterol release from neurons, while apoE4-HDL induced little. To elucidate the mechanism underlying this phenomenon, we used a complex of lipid emulsion (EM with recombinant apoE3 or apoE4 (apoE-EM at various apoE concentrations. When a small number of apoE molecules were associated with EM, apoE3- and apoE4-EM, induced a marked cholesterol release to a level similar to that induced by EM alone. However, when apoE at given concentrations was incubated with EM, apoE3-EM induced a marked cholesterol release, while apoE4-EM induced little. Under these conditions, a greater number of apoE4 molecules were associated with EM than apoE3 molecules. When an increasing number of apoE molecules were associated with EM, both apoE3-EM and apoE4-EM induced little cholesterol release. Preincubation with β-mercaptoethanol increased the number of apoE3 molecules associated with EM similar to that of apoE4 molecules, indicating that the presence (apoE3 or absence (apoE4 of intermolecular disulfide bond formation is responsible for the association of a greater number of apoE4 molecules to EM than apoE3 molecules. Conclusion These results suggest that although apoE and a lipid particle are lipid acceptors, when apoE and a lipid particle form a complex, apoE on the particle surface inhibits the lipid particle-mediated cholesterol release from cells in an apoE-concentration-dependent manner.

  20. Preparation of data relevant to &apos;&apos;Equivalent Uniform Burnup&apos;&apos; and Equivalent Initial Enrichment&apos;&apos; for burnup credit evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Nomura, Yasushi; Okuno, Hiroshi [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment; Murazaki, Minoru [Tokyo Nuclear Service Inc., Tokyo (Japan)

    2001-11-01

    Based on the PWR spent fuel composition data measured at JAERI, two kinds of simplified methods such as &apos;&apos;Equivalent Uniform Burnup&apos;&apos; and &apos;&apos;Equivalent Initial Enrichment&apos;&apos; have been introduced. And relevant evaluation curves have been prepared for criticality safety evaluation of spent fuel storage pool and transport casks, taking burnup of spent fuel into consideration. These simplified methods can be used to obtain an effective neutron multiplication factor for a spent fuel storage/transportation system by using the ORIGEN2.1 burnup code and the KENO-Va criticality code without considering axial burnup profile in spent fuel and other various factors introducing calculated errors. &apos;&apos;Equivalent Uniform Burnup&apos;&apos; is set up for its criticality analysis to be reactivity equivalent with the detailed analysis, in which the experimentally obtained isotopic composition together with a typical axial burnup profile and various factors such as irradiation history are considered on the conservative side. On the other hand, Equivalent Initial Enrichment&apos;&apos; is set up for its criticality analysis to be reactivity equivalent with the detailed analysis such as above when it is used in the so called fresh fuel assumption. (author)

  1. &apos;'VaneCAM'&apos; - the third generation of camshaft adjustment systems; &apos;'VaneCAM'&apos; - Nockenwellenversteller der dritten Generation

    Energy Technology Data Exchange (ETDEWEB)

    Knecht, A. [Hydraulik-Ring GmbH, Nuertingen (Germany). Entwicklung Motorentechnik; Stephan, W. [Hydraulik-Ring GmbH, Nuertingen (Germany); Hannibal, W. [Fachhochschule Suedwestfalen, Iserlohn (Germany). Labor fuer Konstruktion und CAE-Anwendungen

    2002-04-01

    Continuously variable camphasers are now well established for modern spark-ignition engines in high-volume production. With the latest generation of camshaft adjustment systems using the vane-type actuator principle, it is possible to move rapidly and reliably through a large adjustment angle. The layout of these adjusting systems is very simple. The production costs are low in comparison to the first generation of camphasers using spur/helical gears to vary the valve timing. The new-generation systems are mechatronic, with the function depending on the coordination and tuning of hydraulic actuation and engine electronics. The term &apos;VaneCAM&apos; is used for the continuously variable systems of this new generation supplied by Hydraulik-Ring in Nuertingen, Germany. (orig.) [German] Stufenlos wirkende Nockenwellenversteller haben sich an modernen Ottomotoren in den letzten Jahren in der Grossserie etabliert. Mit der neuesten Generation von Nockenwellenverstellern, die nach dem Schwenkmotor-Prinzip aufgebaut sind, lassen sich grosse Verdrehwinkel sehr schnell und betriebssicher verstellen. Der Aufbau dieser Versteller ist einfach, und die Herstellkosten sind gering im Vergleich zur ersten Generation von Verstellern. Bei den Systemen der neuen Generation handelt es sich um mechatronische Systeme, deren Funktion von dem Zusammenspiel und der Abstimmung von hydraulischer Ansteuerung und Motorelektronik abhaengt. Mit dem Begriff &apos;VaneCAM&apos; werden die stufenlos wirkenden Systeme dieser neuen Generation von Hydraulik-Ring aus Nuertingen bezeichnet. (orig.)

  2. Variação térmica da câmara pulpar e do gel clareador bloqueador de infravermelho ativado com lâmpada halógena = Temperature changes of pulpal chamber and infrared-blocking bleaching gel activated with halogen light

    Directory of Open Access Journals (Sweden)

    Torres, Carlos Rocha Gomes

    2008-01-01

    Full Text Available Objetivo: Avaliar a temperatura da câmara pulpar (CP e do gel clareador bloqueador de infravermelho na superfície dental (SUP, durante a ativação com fotopolimerizadores com lâmpadas halógenas que emitem radiação na faixa do infravermelho (IV. Metodologia: Os géis clareadores Whiteness HP Maxx (com bloqueador de IV – MX e Whiteness HP (controle – CON foram aplicados em 10 incisivos centrais superiores. A ativação com luz foi realizada com os fotopolimerizadores (FP Optilight (600mW/cm2, OP e Jet Lite (1200mW/cm2, JL, sendo quatro ativações de 40s, sem intervalo (total de 3min e 20s. As temperaturas foram aferidas a cada 40s com um termômetro digital com dois termopares tipo K, um no interior da CP e outro na superfície dental (SUP. Os dados foram analisados com ANOVA a 3 fatores (tipo de gel – TG, FP e tempo de ativação e teste de Tukey. Resultados: Houve efeito significativo de TG e FP e para a interação FP/TG. As médias (DP (em graus Celsius foram: PC:[GT={MX-6,38(3,25a, CON-7,70(2,91b}, FC={OP- 5,51(2,54a, JL-8,56(2,93b}]; SUR: [GT={CON-9,85(3,89a, MX-14,21(7,76b}, FC={OP-7,32(2,50a, JL-16,74(5,82b}]. Conclusões: O gel bloqueador de IV resultou em menor aquecimento da CP e maior aquecimento do gel que o controle. O FP Jet Lite promoveu maior aquecimento que o Optilight

  3. Orbit as a Mirror of Systemic Disease; &apos;&apos; Epidemiologic, Clinical and Imaging &apos;&apos;

    Directory of Open Access Journals (Sweden)

    Aliakbar Ameri

    2009-01-01

    Full Text Available   "n1- Infectious: toxoplasmosis , toxocariasis ,TB , syphilis , leprosy , HIV , CMV. "n2- Non infectous: endocrine, diabetes, thyroid, connective tissue disease &apos;&apos;RA, SLE, wegeners, PAN, systemic sclerosis&apos;&apos;, vasculitides, GCA&apos;&apos;, sarcoidosis, behcet&apos;s disease, vogt koyangi harada syndrome, phakomatoses. "nAll diseases should be demonstrated by clinical images and imaging slides. "n-imaging "nX-RAY, high frequency US and color doppler, 2D and 3D X-RAY CT, MRI: "n1- X-RAY: in fractures, foreign bodies, skull combined anomalies and few other cases. "n2-High-frequency ultrasound for posterior chamber and ciliary body micro-anatomic changes &apos;&apos; tumors granulations&apos;&apos;. "nColor Doppler study for vascular lesions, central retin artery, tumors in the globe and retrobulbar region. "n3- X-RAY CT for tumors, 2D and 3D for fractures, 3D for bone anatomy, foreign body &apos;&apos; modality of choice is 2directional 2D CT scan &apos;&apos;, sino-nasal diseases, CT-angiography or phlebography in large vessel evaluation, DSA for small vessel anatomy. "n4- MRI for tumors and infection also granulation process. "nMRI and MRV in large vessel anatomy, functional – MRI for the visual pathway, tractography. "nConclusion : "nModality of choice : "n1- CT for foreign bodies &apos;&apos; MRI is contra-indicated in the first step specially in metallic fragments &apos;&apos;. CT for micro-calcification &apos;&apos; retinoblastoma &apos;&apos;,CT for fractures. "n2- MRI for tumors, biometry, soft tissue disease and functional imaging. "n3- DSA for vascular disease of the eye. "n4- U.S for biometery, posterior Chamber, iris and ciliary body lesions. 5- Fluorescein angiography for the retina.  

  4. What do we mean by the word &apos;'Shock'&apos;?

    International Nuclear Information System (INIS)

    From one vantage point, a shock is a continuous but drastic change in state variables that occurs over very small time and length scales. These scales and associated changes in state variables can be measured experimentally. From another vantage point, a shock is a mathematical singularity consisting of instantaneous changes in state variables. This more mathematical view gives rise to analytical solutions to idealized problems. And from a third vantage point, a shock is a structure in a hydrocode prediction. Its width depends on the simulation&apos;s grid resolution and artificial viscosity. These three vantage points can be in conflict when ideas from the associated fields are combined, and yet combining them is an important goal of an integrated modeling program. This presentation explores an example of how models for real materials in the presence of real shocks react to a hydrocode&apos;s numerical shocks of finite width. The presentation will include an introduction to plasticity for the novice, an historical view of plasticity algorithms, a demonstration of how pursuing the meaning of &apos;'shock'&apos; has resulted in hydrocode improvements, and will conclude by answering some of the questions that arise from that pursuit. After the technical part of the presentation, a few slides advertising LANL&apos;s Computational Physics Student Summer Workshop will be shown.

  5. Sustainable Agriculture: enhancing the &apos;neem cake&apos;

    International Nuclear Information System (INIS)

    The &apos;neem cake&apos; is the scrap processing of the industrial chain producing neem oil and azadirachtin. The ENEA Technical Unit Environment and Sustainable Development Innovation the Agro-Industrial System, developed a promising experiment to promote the use of &apos;neem cake&apos; as an insecticide, and fertilizer of low cost in sustainable agriculture.

  6. &apos;Portico&apos; in the Munich MP-tandem

    Energy Technology Data Exchange (ETDEWEB)

    Muenzer, H.; Carli, W.; Hartung, P.; Rohrer, L.; Schnitter, H.; Assmann, W.

    1986-02-15

    A &apos;'portico'&apos; was installed with the aim of preventing spark damage to column components and of increasing the terminal voltage. First experiences: no spark damage is observed, especially deconditioning of accelerating tubes by the sparks has disappeared. No significant increase in terminal voltage due to axial effects has been attained. (orig.).

  7. Parents&apos; Views of Schools&apos; Involvement Efforts

    Science.gov (United States)

    Rodriguez, Raymond J.; Blatz, Erin T.; Elbaum, Batya

    2014-01-01

    Individual and focus group interviews were conducted with 96 parents of students with disabilities in 18 schools to explore parents&apos; views of schools&apos; efforts to engage them in their child&apos;s education. A mixed-methods approach was used to identify and evaluate the relative importance of eight themes related to schools&apos; efforts…

  8. Mechanical behavior of PMMA due to artificial aging by means of a xenon-test chamber; Comportamiento mecanico del polimetilmetacrilato sometido a envejecimiento artificial mediante camara xenotest

    Energy Technology Data Exchange (ETDEWEB)

    Colom, X.; Nogues, F.; Valldeperas, J.; Carrillo, F.; Gordillo, A.

    2001-07-01

    In this investigation, the mechanical behavior of poly(methylmethacrylate) due to aging in Xenon test chamber, using a xenon-arch lamp as alight radiation to simulate natural sun light has been studied. This work studies the mechanical properties (elongation at break, Young&apos;s modules, tensile strength and toughness) of PMMA samples exposed to different aging conditions (until 1560 h xenotest that correspond to 750 days exposure at natural light). The evolution of different mechanical properties characterizes the PMMA&apos;s process of degradation. (Author) 10 refs.

  9. Comparison of the half-value layer: ionization chambers vs solid-state meters; Comparacao entre medidas de camada semirredutora: camara de ionizacao vs medidores de estado solido

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, L.C.S.; Navarro, V.C.C.; Navarro, M.V.T.; Macedo, E.M., E-mail: larapereira@ifba.edu.br [Instituto Federal da Bahia (LABPROSAUD/IFBA), Salvador, BA (Brazil). Laboratorio de Produtos para a Saude

    2015-07-01

    Generally, the half value layer (HVL) is determined by using ionization chambers and aluminum filters. However, some solid-state dosimeters allow simultaneous measurements of X-ray&apos;s parameters, among which the HVL. The main objective of this study was to compare the HVL&apos;s values indicated by four different solid-state dosimeters, whose values were measured by ionization chambers. The maximum difference found between the two methods was 11.42%, one the solid-state dosimeters, showing that the use these instruments to determine CSR in industrial X-ray should be subject to a more thorough evaluation. (author)

  10. Overview of &apos;&apos;Red Oil&apos;&apos; Frequency Analyses for F-Canyon

    Energy Technology Data Exchange (ETDEWEB)

    Lux, C.R.

    2000-07-19

    A very small potential exists in the Savannah River Site (SRS) separations operations for an uncontrolled reaction between tri-n-butyl phosphate (TBP) and nitric acid that could result in unacceptable damage to separations facilities and a significant release of radioactive materials. The recent &apos;&apos;red oil&apos;&apos; (TBP and nitric acid) accident in Tomsk, Russia, resulted in considerable damage and radioactive release. Explosions have also occurred at SRS during the early years of operations. While the SRS separations facilities have operated without incident for many years, it is prudent to revisit the SRS defense-in-depth approach to preventing such an accident and to upgrade preventive procedures and hardware as appropriate.

  11. &apos;'Beaded'&apos; osteoid osteoma: a possible transition between solitary and multicentric tumor

    Energy Technology Data Exchange (ETDEWEB)

    Chiou, Yi-You [Department of Radiology, Taipei Veterans General Hospital, 201 Sec. 2 Shih-Pai Road, 11217, Taipei (Taiwan); Rosenthal, Daniel I. [Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 (United States); Rosenberg, Andrew E. [Department of Pathology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 (United States)

    2003-07-01

    An extremely rare example of an elongated (3 cm) osteoid osteoma is presented. The tumor demonstrated three focal enlargements connected by narrow areas, suggesting a &apos;&apos;string of beads&apos;&apos; in appearance. The elongated shape suggested the possibility that lesional tissue was stretched in a longitudinal fashion as a result of the rapid skeletal growth. The tumor closest to the growth plate was densely ossified, while the furthest lesion was almost completely lytic, suggesting that the tumor enlarged in a centripetal direction. This case is believed to illustrate a continuum from solitary to multicentric osteoid osteoma. The tumor was treated successfully with three separate percutaneous radiofrequency ablations during a single session. (orig.)

  12. THE FIRST &apos;&apos;WATER FOUNTAIN&apos;&apos; COLLIMATED OUTFLOW IN A PLANETARY NEBULA

    Energy Technology Data Exchange (ETDEWEB)

    Gómez, José F.; Miranda, Luis F.; Guerrero, Martín A. [Instituto de Astrofísica de Andalucía, CSIC, Glorieta de la Astronomía s/n, E-18008 Granada (Spain); Suárez, Olga; Bendjoya, Philippe; Lagadec, Eric [Laboratoire Lagrange, UMR 7293, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d' Azur, F-06304 Nice (France); Rizzo, J. Ricardo; García-García, Enrique [Centro de Astrobiología (INTA-CSIC), Ctra. M-108, km. 4, E-28850 Torrejón de Ardoz (Spain); Green, James A. [CSIRO Astronomy and Space Science, Australia Telescope National Facility, P.O. Box 76, Epping, NSW 1710 (Australia); Uscanga, Lucero [Institute of Astronomy, Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens, 15236 Athens (Greece); Ramos-Larios, Gerardo [Instituto de Astronomía y Meteorología, Av. Vallarta No. 2602, Col. Arcos Vallarta, C.P. 44130 Guadalajara, Jalisco (Mexico)

    2015-02-01

    &apos;&apos;Water fountains&apos;&apos; (WFs) are evolved objects showing high-velocity, collimated jets traced by water maser emission. Most of them are in the post-asymptotic giant branch (post-AGB) and they may represent one of the first manifestations of collimated mass loss in evolved stars. We present water maser, carbon monoxide, and mid-infrared spectroscopic data (obtained with the Australia Telescope Compact Array, Herschel Space Observatory, and the Very Large Telescope, respectively) toward IRAS 15103–5754, a possible planetary nebula (PN) with WF characteristics. Carbon monoxide observations show that IRAS 15103–5754 is an evolved object, while the mid-IR spectrum displays unambiguous [Ne II] emission, indicating that photoionization has started and thus, its nature as a PN is confirmed. Water maser spectra show several components spreading over a large velocity range (≅ 75 km s{sup –1}) and tracing a collimated jet. This indicates that the object is a WF, the first WF known that has already entered the PN phase. However, the spatial and kinematical distribution of the maser emission in this object are significantly different from those in other WFs. Moreover, the velocity distribution of the maser emission shows a &apos;'Hubble-like'&apos; flow (higher velocities at larger distances from the central star), consistent with a short-lived, explosive mass-loss event. This velocity pattern is not seen in other WFs (which are presumably in earlier evolutionary stages). We therefore suggest that we are witnessing a fundamental change of mass-loss processes in WFs, with water masers being pumped by steady jets in post-AGB stars, but tracing explosive/ballistic events as the object enters the PN phase.

  13. Trends in Energy. &apos;The consumer decides&apos;; Trends in Energy. &apos;De consument bepaalt&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Brzezowsky-Ruys, Y.; Van der Zalm, M.; Van Zutphen, M. (eds.)

    2012-03-15

    A report is given of the Capgemini organised congress &apos;Trends in Energy 2011&apos; which has the Dutch subtitle &apos;De consument bepaalt&apos; (The consumer decides&apos;. The focus of the articles, interviews, debates and presentations is on the role of the consumer in the supply of and demand for energy. Parts of the report are in Dutch and English [Dutch] Dit rapport bestaat uit een verslag van het congres &apos;Trends in Energy 2011. De consument bepaalt&apos; en een aantal artikelen met achtergrondinformatie over onder meer de rol van de consument in vraag en aanbod van energie.

  14. Molecules with &apos;'wheels'&apos; on a metal surface

    Energy Technology Data Exchange (ETDEWEB)

    Villagomez, Carlos; Grill, Leonhard [Institut fuer Experimentalphysik, Freie Universitaet Berlin (Germany); Sasaki, Takashi; Tour, James M. [Chemistry Department, Rice University, Houston, TX (United States)

    2009-07-01

    The design and creation of molecular nanostructures with specific mechanical functions is one of the fundamental issues in nanotechnology. In this context, wheels are an interesting component for the molecular motion, because they are expected to alter the diffusion properties on surfaces, for instance by allowing only directed motion. In the presented work, we show the absorption of functional molecules studied by scanning tunneling microscopy under ultrahigh vacuum at low temperatures of about 7 K. The molecules consist of a phenyl chain, equipped with carborane side groups that represent the molecular &apos;'wheels'&apos;. Additionally, bromine atoms are attached to the terminal groups of the molecules, which should allow the covalent connection of individual molecules, according to our recently presented oen-surface-synthesis&apos;&apos; method. The high mobility of the molecules during deposition, at room temperature, enables them to form molecular nanostructures. Characteristic appearances of the molecules, due to different molecular configurations, are found. Furthermore, lateral manipulation was used to displace molecules and to probe their intermolecular interactions.

  15. Hydra phantom applicability for carrying out tests of field uniformity in gamma cameras; Aplicabilidade do fantoma hydra para realizacao dos testes de uniformidade de campo em gama camaras

    Energy Technology Data Exchange (ETDEWEB)

    Aragao Filho, Geraldo L., E-mail: geraldo_lemos10@hotmail.com [Centro de Medicina Nuclear de Pernambuco (CEMUPE), Recife, PE (Brazil); Oliveira, Alex C.H., E-mail: oliveira_ach@yahoo.com [Universidade Federal de Pernambuco (DEN/UFPE), Recife, PE (Brazil). Dept. de Energia Nuclear; Lopes Filho, Ferdinand J.; Vieira, Jose W., E-mail: ferdinand.lopes@oi.com.br, E-mail: jose-wilson59@live.com [Instituto Federal de Pernambuco (IFPE), Recife, PE (Brazil)

    2014-07-01

    Nuclear Medicine is a medical modality that makes use of radioactive material &apos;in vivo&apos; in humans, making them a temporary radioactive source. The radiation emitted by the patient&apos;s body is detected by a specific equipment, called a gamma camera, creates an image showing the spatial and temporal biodistribution of radioactive material administered to the patient. Therefore, it&apos;s of fundamental importance a number of specific measures to make sure that procedure be satisfactory, called quality control. To Nuclear Medicine, quality control of gamma camera has the purpose of ensuring accurate scintillographic imaging, truthful and reliable for the diagnosis, guaranteeing visibility and clarity of details of structures, and also to determine the frequency and the need for preventive maintenance of equipment. To ensure the quality control of the gamma camera it&apos;s necessary to use some simulators, called phantom, used in Nuclear Medicine to evaluate system performance, system calibration and simulation of injuries. The goal of this study was to validate a new simulator for nuclear medicine, the Hydra phantom. The phantom was initially built for construction of calibration curves used in radiotherapy planning and quality control in CT. It has similar characteristics to specific phantoms in nuclear medicine, containing inserts and water area. Those inserts are regionally sourced materials, many of them are already used in the literature and based on information about density and interaction of radiation with matter. To verify its efficiency in quality control in Nuclear Medicine, was performed a test for uniformity field, one of the main tests performed daily, so we can verify the ability of the gamma camera to reproduce a uniform distribution of the administered activity in the phantom, been analysed qualitatively, through the image, and quantitatively, through values established for Central Field Of View (CFOV) and Useful Field Of View (UFOV

  16. Solid state laser technology for inertial confinement fusion: A collection of articles from &apos;&apos;Energy and Technology Review&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    1988-06-01

    This paper contains reprinted articles that record several milestones in laser research at LLNL. &apos;&apos;Neodymium-Glass Laser Research and Development at LLNL&apos;&apos; recounts the history of the Laser Program and our work on neodymium-glass lasers. &apos;&apos;Nova Laser Technology&apos;&apos; describes the capabilities of the Nova laser and some of its uses. &apos;&apos;Building Nova: Industry Relations and Technology Transfer&apos;&apos; illustrates the Laboratory&apos;s commitment to work with US industry in technology development. &apos;&apos;Managing the Nova Laser Project&apos;&apos; details the organization and close monitoring of costs and schedules during the construction of the Nova laser facility. The article &apos;&apos;Optical Coatings by the Sol-Gel Process,&apos;&apos; describes our chemical process for making the damage-resistant, antireflective silica coatings used on the Nova laser glass. The technical challenges in designing and fabricating the KDP crystal arrays used to convert the light wave frequency of the Nova lasers are reported in &apos;&apos;Frequency Conversion of the Nova Laser.&apos;&apos; Two articles, &apos;&apos;Eliminating Platinum Inclusions in Laser Glass&apos;&apos; and &apos;&apos;Detecting Microscopic Inclusions in Optical Glass,&apos;&apos; describe how we dealt with the problem of damaging metal inclusions in the Nova laser glass. The last article reprinted here, &apos;&apos;Auxilliary Target Chamber for Nova,&apos;&apos; discusses the diversion of two of Nova&apos;s ten beamlines into a secondary chamber for the purpose of increasing our capacity for experimentation.

  17. Simulation and analysis of the tangential flow in the combustion chamber of a steam generator; Simulacion y analisis del flujo tangencial en la camara de combustion de un generador de vapor

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez Ramirez, Isaias

    1997-06-01

    supplying ducts, were obtained, with a maximum discrepancy of 5.5 m/s between the data published by McKenty and Gravel (1997) and this analysis, for the case of combustion gases in the interior of the furnace. Temperature profiles were obtained, which were overestimated in the order of 417 Celsius degrees for the case of the temperature of gases in the center of the combustion chamber, when comparing them with the corresponding ones obtained by McKenty and Gravel (1997). It is speculated that this discrepancy must to be due to the omission of the connection of the radiation model to the global computational model and; the contours of concentration of species for the combustion products in the chamber were considered (carbon dioxide, oxygen and nitrogen), obtaining only the qualitative behavior of these. It is proposed as conclusion that the computational model developed in this thesis work can be used for the estimation of flow of fluids patterns, heat transference and transference of mass of a steam generator VU-60 of the tangential type and similar to the one taken as a base for this analysis. One improvement to the computational model developed could be achieved including the radiation effect, which requires a larger memory capacity of the computer hardware than the one available during the elaboration of this thesis. [Espanol] El presente trabajo de tesis describe la simulacion y analisis de la camara de combustion de un generador de vapor VU-60 del tipo tangencial, el cual esta basado en la solucion de la ecuacion generalizada de transporte, empleando modelos matematicos desarrollados para la caracterizacion de fenomenos fisicos para cerrar los sistemas de ecuaciones gobernantes. Para la solucion de los modelos matematicos y ecuaciones gobernantes se empleo el metodo de volumen finito, el cual se basa en el concepto de volumen de control. Se desarrollo un modelo computacional tridimensional por medio del cual se estimaron los perfiles de velocidad, presion, temperatura

  18. Effects of holmium laser on dental structure in vivo: thermal evaluation and histological analysis on pulpal tissue; Efeitos in vivo do laser de holmio em estrutura dental: monitoracao termica e analise histologica do tecido pulpar

    Energy Technology Data Exchange (ETDEWEB)

    Strefezza, Claudia

    2001-07-01

    Previous in vitro studies have demonstrated that Ho:YLF laser is capable of inducing physical and chemical changes on dental surfaces treated for caries prevention. The temperature in the pulp chamber was in vitro evaluated to as a function of the power and frequency of the laser irradiation. The purpose of this work is to verify the occurrence of pulp inflammation after Ho:YLF laser irradiation using different parameters in rabbits&apos; teeth. The premolars and molars of ten rabbits (NZB) were divided in two groups according to the irradiation energy values of a Ho:YLF laser prototype operating at 2.065{mu}m wave length, frequency of O,5Hz and pulse length of 250{mu}s. An group A teeth were irradiated with using ten pulses of 334mJ/pulse of a Ho:YLF laser prototype operating at O.5Hz, and group B, with 512mJ/pulse. Animals were killed by transcardiac perfusion and the samples were prepared for histopathological analysis. The in vitro temperature monitoring revealed an increase of 1 deg C for the 334mJ/pulse energy and 4.5 deg C for the 512mJ/pulse energy. SEM observations showed the occurrence of melting and resolidification in dental surface. From the in vivo analysis it can be concluded that both employed laser parameters did not induce to any inflammatory response from the pulp. (author)

  19. ApoE isoform-dependent changes in hippocampal synaptic function

    Directory of Open Access Journals (Sweden)

    Sullivan Patrick M

    2009-05-01

    Full Text Available Abstract The lipoprotein receptor system in the hippocampus is intimately involved in the modulation of synaptic transmission and plasticity. The association of specific apoE isoform expression with human neurodegenerative disorders has focused attention on the role of these apoE isoforms in lipoprotein receptor-dependent synaptic modulation. In the present study, we used the apoE2, apoE3 and apoE4 targeted replacement (TR mice along with recombinant human apoE isoforms to determine the role of apoE isoforms in hippocampus area CA1 synaptic function. While synaptic transmission is unaffected by apoE isoform, long-term potentiation (LTP is significantly enhanced in apoE4 TR mice versus apoE2 TR mice. ApoE isoform-dependent differences in LTP induction require NMDA-receptor function, and apoE isoform expression alters activation of both ERK and JNK signal transduction. Acute application of specific apoE isoforms also alters LTP induction while decreasing NMDA-receptor mediated field potentials. Furthermore, acute apoE isoform application does not have the same effects on ERK and JNK activation. These findings demonstrate specific, isoform-dependent effects of human apoE isoforms on adult hippocampus synaptic plasticity and highlight mechanistic differences between chronic apoE isoform expression and acute apoE isoform exposure.

  20. Pressure effects on the intervalence-transfer band of salts of mixed-valence 1&apos;,1&apos;'&apos;-disubstituted biferrocenium cations

    Energy Technology Data Exchange (ETDEWEB)

    Sinha, U.; Lowery, M.D.; Ley, W.W.; Drickamer, H.G.; Hendrickson, D.N.

    1988-04-13

    The pressure dependence of the intervalence-transfer (IT) electronic absorption band has been determined for the mixed-valence biferrocenium and 1&apos;,1&apos;'&apos;-diethylbiferrocenium cations intercalated into a clay and for the following eight microcrystalline compounds: biferrocenium triiodide (1); biferrocenium hexafluorophosphate (2); 1&apos;,1&apos;'&apos;-diiodobiferrocenium triiodide (3); 1&apos;,1&apos;'&apos;-diiodobiferrocenium dibromoiodate (4); 1&apos;,1&apos;'&apos;-dibromobiferrocenium triiodide (5); 1&apos;,1&apos;'&apos;-dichlorobiferrocenium triiodide hemiiodine (6); 1&apos;,1&apos;'&apos;-diethylbiferrocenium triiodide (7); 1&apos;,1&apos;'&apos;-di-n-butylbiferrocenium triiodide (8). Basically three different types of pressure dependencies of the energy of the IT band are seen. Compounds 3-5, which have a solid-state packing arrangement consisting of alternating stacks of cations and anions, exhibit one type of behavior. For these three compounds the IT band shifts blue initially with pressure, and above approx. 80 kbar there is the onset of a rather abrupt reversal where the IT band shifts red with increasing pressure.

  1. &apos;&apos;Black Bone&apos;&apos; MRI: a potential alternative to CT with three-dimensional reconstruction of the craniofacial skeleton in the diagnosis of craniosynostosis

    Energy Technology Data Exchange (ETDEWEB)

    Eley, Karen A. [University of Oxford, John Radcliffe Hospital, Nuffield Department of Surgical Sciences, Oxford (United Kingdom); University of Cambridge, Addenbrookes Hospital, Department of Radiology, Cambridge (United Kingdom); Watt-Smith, Stephen R. [University of Oxford, John Radcliffe Hospital, Nuffield Department of Surgical Sciences, Oxford (United Kingdom); University College London, Eastman Dental Institute, London (United Kingdom); Sheerin, Fintan [University of Oxford, John Radcliffe Hospital, Nuffield Department of Surgical Sciences, Oxford (United Kingdom); Oxford University Hospitals NHS Trust, Oxford (United Kingdom); Golding, Stephen J. [University of Oxford, John Radcliffe Hospital, Nuffield Department of Surgical Sciences, Oxford (United Kingdom)

    2014-10-15

    To determine the potential of novel gradient echo parameters, &apos;&apos;Black Bone&apos;&apos; MRI as an alternative to CT in the identification of normal and prematurely fused cranial sutures both in 2D and 3D imaging. Thirteen children with a clinical diagnosis of craniosynostosis underwent &apos;&apos;Black Bone&apos;&apos; MRI in addition to routine cranial CT. &apos;&apos;Black Bone&apos;&apos; datasets were compared to CT and clinical findings. &apos;&apos;Black Bone&apos;&apos; imaging was subsequently used to develop 3D reformats of the craniofacial skeleton to enhance further visualisation of the cranial sutures. Patent cranial sutures were consistently identified on &apos;&apos;Black Bone&apos;&apos; MRI as areas of increased signal intensity. In children with craniosynostosis the affected suture was absent, whilst the remaining patent sutures could be visualised, consistent with CT and clinical findings. Segmentation of the &apos;&apos;Black Bone&apos;&apos; MRI datasets was successful with both threshold and volume rendering techniques. The cranial sutures, where patent, could be visualised throughout their path. Patent cranial sutures appear as areas of increased signal intensity on &apos;&apos;Black Bone&apos;&apos; MRI distinct from the cranial bone, demonstrating considerable clinical potential as a non-ionising alternative to CT in the diagnosis of craniosynostosis. (orig.)

  2. Changes in the internal resistance of a single chamber microbial fuel cell associated with architectural changes and inoculation; Cambios en la resistencia interna de una celda de combustible microbiana de una camara asociados a cambios de arquitectura y tipo de inoculo

    Energy Technology Data Exchange (ETDEWEB)

    Vazquez Larios, A.L.; Vazquez-Huerta, G.; Esparza-Garcia, F.; Solorza-Feria, O.; Poggi Varaldo, H.M. [Centro de Investigacion y de Estudios Avanzados del IPN, Mexico D.F. (Mexico)]. E-mail: hectorpoggi2001@gmail.com; linevazquez@yahoo.com.mx

    2009-09-15

    The objective of this work was to electrochemically characterize a new type of microbial fuel cell (MFC-A) and evaluate the effect of three inoculated types on internal resistance (Ir). The results were compared with those from a standard fuel cell (MFC-B). The MFC-A consisted of a horizontal acrylate cylinder equipped with two sandwiched electrode systems (each with a anode proton exchange membrane-cathode) at each end of the chamber. The MFC-B consisted of an anode and cathode each placed at opposing faces of the chamber, separated by 78 mm. The Ir of the cells were determined using a polarization curve. The inoculates were from continuous complete-mix reactors, biomass in suspension, at the laboratory scale. The inoculate with the lowest Ir value (1 200 and 3900 {Omega}) was sulfate reduction (SR-In). The second corresponded to methanogen inoculated cells (M-In) with Ir of 5300 and 7500 {Omega}. Aerobic inoculated cells (A-IN) had extremely high Ir values, 100000 and 130000 {Omega} for MFC-A and MFC-B, respectively. The Ir for all the inoculates was the lowest in the MFC-A, attributed to the change in the cell&apos;s architecture and the design of the electrodes. These results are encouraging since a decrease in Ir is required to increase the power and efficiency of a microbial fuel cell. [Spanish] El objetivo de este trabajo fue caracterizar electroquimicamente una celda de combustible microbiana de nuevo tipo (CCM-A), y evaluar el efecto de tres tipos de inoculos sobre la resistencia interna (R{sub i}). Los resultados fueron comparados con los de una celda de combustible estandar (CCM-B). La CCM-A consistio de un cilindro horizontal de acrilato, equipado con dos sistemas de electrodos emparedados (cada uno con catodo/membrana de intercambio protonico/anodo) en cada uno de los extremos de la camara. La CCM-B consistio de un anodo y un catodo colocados cada uno en las caras opuestas de la celda, separados por 78 mm. Las Ri de las celdas fueron determinadas por

  3. Capacidade de abaixamento de temperatura da superfície interna da câmara pulpar após a aplicação do gás refrigerante à base de tetrafluoretano em dente extraído hígido e restaurado = Ability to decrease the temperature in the pulp chamber’s internal surface after the application of tetrafluorethane freezing gas on sound and restored extracted tooth

    Directory of Open Access Journals (Sweden)

    Irala, Luis Eduardo Duarte

    2007-01-01

    Full Text Available O sucesso do tratamento endodôntico está relacionado diretamente a um correto diagnóstico. Entre os recursos semiotécnicos empregados em Endodontia, o teste de vitalidade pulpar com gás refrigerante constitui auxílio clínico destinado a despertar resposta da polpa. Existem dificuldades de interpretação das respostas sensoriais em dentes portadores de restaurações, que podem agir como condutoras ou isolantes térmicos, diminuindo a acurácia do teste semiotécnico. Por isso, este estudo teve como intuito avaliar em um dente canino superior humano extraído a capacidade de abaixamento de temperatura da superfície interna da câmara pulpar após a aplicação do gás refrigerante à base de tetrafluoretano em três diferentes situações clínicas. No dente inicialmente hígido, posteriormente quando restaurado com amálgama e, finalmente, quando removida a restauração de amálgama e restaurado com resina composta. Quando o teste envolveu o dente restaurado com amálgama, o grau de abaixamento de temperatura foi maior, estatisticamente significativo, em relação às outras duas situações. No que concerne ao do tempo necessário para atingir a temperatura mínima, não existiram diferenças estatísticas significantes entre o dente hígido e o dente com amálgama, também não houve diferenças estatísticas entre o dente hígido e o dente com resina. Entretanto, o dente restaurado com resina e o dente restaurado com amálgama são diferentes estatisticamente. O amálgama foi o material que oportunizou o menor tempo para chegar à temperatura mais baixa. Ao executar um teste semiotécnico com spray refrigerante, o tempo e a intensidade das respostas dolorosas podem variar quando existe algum material a ser transposto na superfície dentária

  4. Response of &apos;Nagpur&apos; mandarin, &apos;Mosambi&apos; sweet orange and &apos;Kagzi&apos; acid lime to gamma radiation

    Energy Technology Data Exchange (ETDEWEB)

    Ladaniya, M.S. E-mail: mslngp@nagpur.dot.net.in; Singh, Shyam; Wadhawan, A.K

    2003-07-01

    The effects of irradiation dose and refrigerated storage conditions on &apos;Nagpur&apos; mandarin (Citrus reticulata Blanco), &apos;Mosambi&apos; sweet orange (Citrus sinensis Osbeck) and &apos;Kagzi&apos; acid lime (Citrus aurantifolia Swingle) were investigated. Mature fruits of these three species were treated with 0, 0.25, 0.5, 1 and 1.5 kGy radiation. &apos;Nagpur&apos; mandarin and &apos;Mosambi&apos; sweet oranges were stored at 6-7 deg. C and 90-95% r.h. for 75 and 90 days, respectively, while &apos;Kagzi&apos; acid limes were stored at 8{+-}1 deg. C and 90-95% r.h. for 90 days. Physico-chemical parameters, sensory attributes and respiration rate were measured besides losses and disorders. In &apos;Nagpur&apos; mandarin, radiation dose upto 1.5 kGy did not cause any rind disorder. Radiation treatments did not reduce the extent of decay. Penicillium rot was delayed in fruit treated with 1.5 kGy, while it appeared early in 0 kGy. Irradiation doses were ineffective to control rots due to Botryodiplodia theobromae and Alternaria citri. Doses upto 1.5 kGy did not cause any significant effect on fruit firmness and juice content; however, total soluble solids increased, while titratable acidity and vitamin &apos;C&apos; content decreased. Texture and flavour scores as recorded after a week, were not affected by irradiation except in 1.5 kGy. In &apos;Mosambi&apos; sweet orange, radiation treatments caused peel disorder in the form of brown sunken areas after 90 days and reduced fruit firmness, acidity and vitamin C content. The TSS content was higher in treated fruit. Flavour and texture were not affected by the doses of irradiation used. In treated acid limes (mature yellow), weight loss and decay were higher than untreated fruit (0 kGy) although difference was non-significant. Juice, TSS, titratable acidity and vitamin C contents were significantly less in treated fruit than in 0 kGy. Texture and flavour scores were also less in treated fruit than in 0 kGy. The

  5. Phospholipid dysregulation contributes to ApoE4-associated cognitive deficits in Alzheimer's disease pathogenesis.

    Science.gov (United States)

    Zhu, Li; Zhong, Minghao; Elder, Gregory A; Sano, Mary; Holtzman, David M; Gandy, Sam; Cardozo, Christopher; Haroutunian, Vahram; Robakis, Nikolaos K; Cai, Dongming

    2015-09-22

    The apolipoprotein E4 (ApoE4) allele is the strongest genetic risk factor for developing sporadic Alzheimer's disease (AD). However, the mechanisms underlying the pathogenic nature of ApoE4 are not well understood. In this study, we have found that ApoE proteins are critical determinants of brain phospholipid homeostasis and that the ApoE4 isoform is dysfunctional in this process. We have found that the levels of phosphoinositol biphosphate (PIP2) are reduced in postmortem human brain tissues of ApoE4 carriers, in the brains of ApoE4 knock-in (KI) mice, and in primary neurons expressing ApoE4 alleles compared with those levels in ApoE3 counterparts. These changes are secondary to increased expression of a PIP2-degrading enzyme, the phosphoinositol phosphatase synaptojanin 1 (synj1), in ApoE4 carriers. Genetic reduction of synj1 in ApoE4 KI mouse models restores PIP2 levels and, more important, rescues AD-related cognitive deficits in these mice. Further studies indicate that ApoE4 behaves similar to ApoE null conditions, which fails to degrade synj1 mRNA efficiently, unlike ApoE3 does. These data suggest a loss of function of ApoE4 genotype. Together, our data uncover a previously unidentified mechanism that links ApoE4-induced phospholipid changes to the pathogenic nature of ApoE4 in AD.

  6. Optimal &apos;'image-based'&apos; weighting for energy-resolved CT

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, Taly Gilat [Department of Biomedical Engineering, Marquette University, Milwaukee, Wisconsin 53201 (United States)

    2009-07-15

    This paper investigates a method of reconstructing images from energy-resolved CT data with negligible beam-hardening artifacts and improved contrast-to-nosie ratio (CNR) compared to conventional energy-weighting methods. Conceptually, the investigated method first reconstructs separate images from each energy bin. The final image is a linear combination of the energy-bin images, with the weights chosen to maximize the CNR in the final image. The optimal weight of a particular energy-bin image is derived to be proportional to the contrast-to-noise-variance ratio in that image. The investigated weighting method is referred to as &apos;'image-based'&apos; weighting, although, as will be described, the weights can be calculated and the energy-bin data combined prior to reconstruction. The performance of optimal image-based energy weighting with respect to CNR and beam-hardening artifacts was investigated through simulations and compared to that of energy integrating, photon counting, and previously studied optimal &apos;'projection-based'&apos; energy weighting. Two acquisitions were simulated: dedicated breast CT and a conventional thorax scan. The energy-resolving detector was simulated with five energy bins. Four methods of estimating the optimal weights were investigated, including task-specific and task-independent methods and methods that require a single reconstruction versus multiple reconstructions. Results demonstrated that optimal image-based weighting improved the CNR compared to energy-integrating weighting by factors of 1.15-1.6 depending on the task. Compared to photon-counting weighting, the CNR improvement ranged from 1.0 to 1.3. The CNR improvement factors were comparable to those of projection-based optimal energy weighting. The beam-hardening cupping artifact increased from 5.2% for energy-integrating weighting to 12.8% for optimal projection-based weighting, while optimal image-based weighting reduced the cupping to 0

  7. The &apos;lamellated&apos; skull in. beta. -thalassaemia

    Energy Technology Data Exchange (ETDEWEB)

    Orzincolo, C. (St. Anna Hospital, Ferrara (Italy). Dept. of Radiology); Castaldi, G. (St. Maria delle Croci Hospital, Ravenna (Italy). Dept. of Medicine); Scutellari, P.N. (Ferrara Univ. (Italy). Inst. of Radiology); Franceschini, F. (Ferrara Univ. (Italy). Inst. of Medical Semeiotica)

    1989-08-01

    The skull in homozygous {beta}-thalassaemia may present several abnormalities, such as osteopenia, widening of the diploic space, and a &apos;hair-on-end&apos; appearance. In some cases it presents also a particular stratified appearance caused by a variable number of osseous lamellae, parallel with the inner table. This &apos;lamellated skull&apos; was observed in 16 out of 150 patients affected by the disease (10.6%). (orig./GDG).

  8. The best selled car. &apos;'Twizy'&apos; leads the sales statistics of electrically powered vehicles - a test report; Der Meistverkaufte. Renaults &apos;'Twizy'&apos; fuehrt die E-Mobil-Verkaufsstatistik an - ein Fahrbericht

    Energy Technology Data Exchange (ETDEWEB)

    Welter, Philippe

    2013-02-15

    Four wheels, two seats, one steering wheel: What does it require more for a small, electrically powered city car? Nothing, says the manufacturer. Two side windows, that is our opinion. With a maximum speed of 80 kilometers per hour and a range of 100 kilometers, the vehicle is certainly ideal for many applications over short distances in the city. PHOTON now uses the &apos;'Twizy'&apos; for almost a year, and gained consistently good experiences.

  9. Roles of apolipoprotein E4 (ApoE4) in the pathogenesis of Alzheimer's disease: lessons from ApoE mouse models.

    Science.gov (United States)

    Huang, Yadong

    2011-08-01

    ApoE4 (apolipoprotein E4) is the major known genetic risk factor for AD (Alzheimer's disease). In most clinical studies, apoE4 carriers account for 65-80% of all AD cases, highlighting the importance of apoE4 in AD pathogenesis. Emerging data suggest that apoE4, with its multiple cellular origins and multiple structural and biophysical properties, contributes to AD in multiple ways either independently or in combination with other factors, such as Aβ (amyloid β-peptide) and tau. Many apoE mouse models have been established to study the mechanisms underlying the pathogenic actions of apoE4. These include transgenic mice expressing different apoE isoforms in neurons or astrocytes, those expressing neurotoxic apoE4 fragments in neurons and human apoE isoform knock-in mice. Since apoE is expressed in different types of cells, including astrocytes and neurons, and in brains under diverse physiological and/or pathophysiological conditions, these apoE mouse models provide unique tools to study the cellular source-dependent roles of apoE isoforms in neurobiology and in the pathogenesis of AD. They also provide useful tools for discovery and development of drugs targeting apoE4's detrimental effects.

  10. Estimation of absorbed dose with CBCT in studies of prostate measured with TLD&apos;s pen and camera; Estimacion de dosis absorbida con CBCT en estuidos de prostata medida con camara lapiz y TLDs

    Energy Technology Data Exchange (ETDEWEB)

    Alonso Iracheta, L.; Capuz Suarez, B.; Cordoba Gomez, D.; Gomez Martin, C.; Miravilla Limorte, M.; Bejar Navarro, M. J.; Colmenares fernandez, R.; Moris Pablos, R.; Rot Sanjuan, M. J.

    2011-07-01

    The Cone Beam CT (CBCT) is an imaging system composed of an X-ray tube facing a flat panel built into the gas detection. Allows for Image Guided Radiation Therapy 3D (3D IGRT) by volumetric reconstructions of the patient in the treatment unit and overlay them with the reference CT to verify and / or correct the position of the tumor and / or organs at risk in the area treatment.

  11. Proceedings of the DGMK-conference &apos;Synthesis gas chemistry&apos;. Authors&apos; manuscripts

    Energy Technology Data Exchange (ETDEWEB)

    Hoenicke, D.; Kohlpaintner, C.; Luecke, B.; Reschetilowski, W. [eds.

    2000-07-01

    The main topics of the DGMK-Conference &apos;&apos;Synthesis Gas Chemistry&apos;&apos; were: production of synthesis gas from several educts, new catalysts, Fischer-Tropsch synthesis, hydroformylation, steam reforming and carbonylation.

  12. &apos;Renewable energy potentials of the coal mining sector&apos;; &apos;Regenerative Energiepotenziale des Steinkohlebergbaus&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Eikhoff, Juergen [RAG Aktiengesellschaft, Herne (Germany)

    2012-07-15

    The contribution outlines the &apos;green activities and plans&apos; of the RAG. This may be surprising in a coal mining company but perspectives must be found beyond 2018, when coal production will phase out. (orig./AKB)

  13. Progress Report: DE-FG03-97ER20274, &apos;&apos;Microbial Production of Isoprene&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Ray Fall

    2002-03-13

    We have discovered that microorganisms produce and emit the hydrocarbon isoprene (2-methyl-1,3-butadiene), and have suggested that if isoprene-producing enzymes and their genes can be harnessed, useful hydrocarbon-producing systems might be constructed. The main goal of the proposed work is to establish the biochemical mechanism and regulation of isoprene formation in the bacterial system, Bacillus subtilis. Specific objectives of the proposed work are the following: (A) to characterize the physiological regulation of isoprene formation in B. subtilis; (B) to characterize mutations in B. subtilis 168 that suppress isoprene formation, clone these genes, and determine how isoprene and isoprenoid carbon flow are regulated; and (C) to test &apos;'overflow'&apos; and &apos;'signaling'&apos; models for Bacillus isoprene formation. We are also pursuing the isolation and cloning of B. subtilis isoprene synthase, which we believe may be a regulatory enzyme.

  14. Design and implementation of a &apos;'cheese'&apos; phantom-based Tomotherapy TLD dose intercomparison

    Energy Technology Data Exchange (ETDEWEB)

    Schiefer, Hans; Buchauer, Konrad; Heinze, Simon [Medical Physics Group, Department of Radiation Oncology, St. Gallen (Switzerland); Henke, Guido; Plasswilm, Ludwig [Department of Radiation Oncology, St. Gallen (Switzerland)

    2015-11-15

    The unique beam-delivery technique of Tomotherapy machines (Accuray Inc., Sunnyvale, Calif.) necessitates tailored quality assurance. This requirement also applies to external dose intercomparisons. Therefore, the aim of the 2014 SSRMP (Swiss Society of Radiobiology and Medical Physics) dosimetry intercomparison was to compare two set-ups with different phantoms. A small cylindrical Perspex phantom, which is similar to the IROC phantom (Imaging and Radiation Oncology Core, Houston, Tex.), and the &apos;'cheese'&apos; phantom, which is provided by the Tomotherapy manufacturer to all institutions, were used. The standard calibration plans for the TomoHelical and TomoDirect irradiation techniques were applied. These plans are routinely used for dose output calibration in Tomotherapy institutions. We tested 20 Tomotherapy machines in Germany and Switzerland. The ratio of the measured (D{sub m}) to the calculated (D{sub c}) dose was assessed for both phantoms and irradiation techniques. The D{sub m}/D{sub c} distributions were determined to compare the suitability of the measurement set-ups investigated. The standard deviations of the TLD-measured (thermoluminescent dosimetry) D{sub m}/D{sub c} ratios for the &apos;'cheese'&apos; phantom were 1.9 % for the TomoHelical (19 measurements) and 1.2 % (11 measurements) for the TomoDirect irradiation techniques. The corresponding ratios for the Perspex phantom were 2.8 % (18 measurements) and 1.8 % (11 measurements). Compared with the Perspex phantom-based set-up, the &apos;'cheese'&apos; phantom-based set-up without individual planning was demonstrated to be more suitable for Tomotherapy dose checks. Future SSRMP dosimetry intercomparisons for Tomotherapy machines will therefore be based on the &apos;'cheese'&apos; phantom set-up. (orig.) [German] Die einzigartige Bestrahlungstechnik mit Tomotherapie-Bestrahlungsgeraeten (Accuray Inc., Sunnyvale, CA, USA) erfordert spezifische

  15. &apos;Minergie&apos; as an opportunity for trade; &apos;Minergie&apos; als Chance fuer das Gewerbe

    Energy Technology Data Exchange (ETDEWEB)

    Graf, R.; Buergi, H.; Hotz, R.

    2000-07-01

    This collection of short articles is dedicated to the promotion of the Swiss &apos;Minergie&apos; building standard, covering the following points: &apos;Minergie&apos; - a standard for the future; well-insulated and air-tight - two of the three main &apos;Minergie&apos; requirements; solar collectors as a &apos;Minergie&apos; component; radiators for low-energy-consumption buildings; hot water from the sun on six out of seven days; the &apos;Minergie&apos; module as a factor for success; the &apos;Habitus&apos; ventilation unit - a new Swiss product. The first contribution introduces the &apos;Minergie&apos; Standard. Its application in the building and building technical services trades offers from considerable advantages and opportunities for profit. The Standard, which aims to increase the comfort and reduce the energy consumption of buildings, is introduced and the basic principles involved, including energy usage figures, are discussed. A second contribution describes two of the three main requirements for reaching the &apos;Minergie&apos; Standard, air-tightness and good thermal insulation. The main advantage of the standard - a higher level of comfort - is emphasised and an example is given. The third short article takes a look at the use of thermal solar collectors as a source of heat in &apos;Minergie&apos; buildings. A solution involving a combined solar heating and hot-water supply is discussed. The fourth contribution discusses the use of low-temperature radiators in &apos;Minergie&apos; buildings. Examples are given of heat requirements calculation and the factors involved in dimensioning the radiators are discussed. A fifth article describes a commercially available compact solar hot-water system and discusses questions of solar fraction. Returning to basic aspects, the sixth contribution introduces a labelling system for the various components of a &apos;Minergie&apos; building - such as ventilation units, insulation material, radiators, boilers etc

  16. Absorption-line &apos;'forest'&apos; in quasar spectra, and the structure of the universe

    Energy Technology Data Exchange (ETDEWEB)

    Doroshkevich, A.G.; Muket, J.P.

    1985-05-01

    The &apos;'forest'&apos; of absorption lines observed in the spectrum of distant quasars is interpreted in light of the adiabatic (pancake) theory for the origin and evolution of structure in the universe. The hidden mass might reside in neutrino-like particles (perhaps unstable) having a rest mass of about 60--100 eV. Opportunities for testing the hypothesis observationally are discussed.

  17. Small angle neutron scattering experiments on &apos;&apos;side-on fixed&apos;&apos; liquid crystal polyacrylates

    Energy Technology Data Exchange (ETDEWEB)

    Leroux, N. (Centre de Recherche Paul Pascal, Bordeaux-1 Univ., 33 - Pessac (France)); Keller, P. (Lab. Leon Brillouin, CEA-CNRS/CE Saclay, 91 - Gif-sur-Yvette (France)); Achard, M.F. (Centre de Recherche Paul Pascal, Bordeaux-1 Univ., 33 -Pessac (France)); Noirez, L. (Lab. Leon Brillouin, CEA-CNRS/CE Saclay, 91 -Gif-sur-Yvette (France)); Hardouin, F. (Centre de Recherche Paul Pascal, Bordeaux-1 Univ., 33 - Pessac (France))

    1993-08-01

    Small Angle Neutron Scattering experiments were carried out on liquid crystalline &apos;&apos;side-on fixed&apos;&apos; polyacrylates: we observe that the polymer backbone adopts a prolate conformation in the nematic phase. Such anisotropy of the global backbone is larger for smaller spacer lenght. In every case we measure at low temperatures a large chain extension as previously described in polysiloxanes. (orig.).

  18. 4He2+ and H2+ ion beam separation on &apos;'Sokol'&apos; IBA facility

    International Nuclear Information System (INIS)

    Two separation methods of 4He2+ and H2+ ion beams have been tested on &apos;'Sokol'&apos; IBA facility of NSC KIPT: use of existing beam-bending magnet and electrostatic analyzer, dissociation of H2+ ions when the beam passes through the carbon film. It is shown that these methods allow to decrease essentially the H2+ ion content in the 4He2+ beam.

  19. The solar boat &apos;Midnight sun&apos;; Solelbaaten &apos;Midnight sun&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Kohlstroem, Richard; Fiedler, Frank

    2010-12-15

    The solar boat &apos;Midnight sun&apos; has during the project period been presented and demonstrated at many different events in Sweden. The focus has been on exhibitions for boats, energy and education. There was a great response from visitors but also from various media such as newspapers, radio and television which reported about the solar boat. Solar driven vehicles are a great way to create interest for solar technology. Due to the increased demand for technical improvements and financial efforts we refrained from participating at the solar boat race &apos;Frisian Solar Challenge&apos; in 2010 in Holland. Instead a solar boat for tourist trade at Fraemby Udde in Falun has been designed and built. The boat will be rented to visitors during the summer period. The electrical components are designed for short trips with a travel time between 3-4 hours. The solar boat at Fraemby Udde shows that it is relatively simple to convert an existing boat to a solar driven boat. Fraemby Udde receives many visitors, so the solar boat will be shown and used by a large number of tourists from Sweden and abroad

  20. OBJECTIVE BAYESIAN ANALYSIS OF &apos;'ON/OFF'&apos; MEASUREMENTS

    Energy Technology Data Exchange (ETDEWEB)

    Casadei, Diego, E-mail: diego.casadei@fhnw.ch [Visiting Scientist, Department of Physics and Astronomy, UCL, Gower Street, London WC1E 6BT (United Kingdom)

    2015-01-01

    In high-energy astrophysics, it is common practice to account for the background overlaid with counts from the source of interest with the help of auxiliary measurements carried out by pointing off-source. In this &apos;'on/off'&apos; measurement, one knows the number of photons detected while pointing toward the source, the number of photons collected while pointing away from the source, and how to estimate the background counts in the source region from the flux observed in the auxiliary measurements. For very faint sources, the number of photons detected is so low that the approximations that hold asymptotically are not valid. On the other hand, an analytical solution exists for the Bayesian statistical inference, which is valid at low and high counts. Here we illustrate the objective Bayesian solution based on the reference posterior and compare the result with the approach very recently proposed by Knoetig, and discuss its most delicate points. In addition, we propose to compute the significance of the excess with respect to the background-only expectation with a method that is able to account for any uncertainty on the background and is valid for any photon count. This method is compared to the widely used significance formula by Li and Ma, which is based on asymptotic properties.

  1. Effects of inhomogeneities on apparent cosmological observables: &apos;'fake'&apos; evolving dark energy

    Energy Technology Data Exchange (ETDEWEB)

    Romano, Antonio Enea [Kyoto University, Yukawa Institute for Theoretical Physics, Kyoto (Japan); Universidad de Antioquia, Instituto de Fisica, Medellin (Colombia); National Taiwan University, Leung Center for Cosmology and Particle Astrophysics, Taipei, Taiwan (China); The University of Tokyo, Research Centre for the Early Universe (RESCEU), Graduate School of Science, Tokyo (Japan); Starobinsky, Alexei A. [L. D. Landau Institute for Theoretical Physics, Moscow (Russian Federation); The University of Tokyo, Research Centre for the Early Universe (RESCEU), Graduate School of Science, Tokyo (Japan); Sasaki, Misao [Kyoto University, Yukawa Institute for Theoretical Physics, Kyoto (Japan)

    2012-12-15

    Using the exact Lemaitre-Bondi-Tolman solution with a non-vanishing cosmological constant {Lambda}, we investigate how the presence of a local spherically symmetric inhomogeneity can affect apparent cosmological observables, such as the deceleration parameter or the effective equation of state of dark energy (DE), derived from the luminosity distance under the assumption that the real space-time is exactly homogeneous and isotropic. The presence of a local underdensity is found to produce apparent phantom behavior of DE, while a locally overdense region leads to apparent quintessence behavior. We consider relatively small large scale inhomogeneities which today are not linear and could be seeded by primordial curvature perturbations compatible with CMB bounds. Our study shows how observations in an inhomogeneous {Lambda}CDM universe with initial conditions compatible with the inflationary beginning, if interpreted under the wrong assumption of homogeneity, can lead to the wrong conclusion about the presence of &apos;'fake'&apos; evolving dark energy instead of {Lambda}. (orig.)

  2. Formation and characterisation of solution processed &apos;'pseudo-bilayer'&apos; organic solar cells

    Energy Technology Data Exchange (ETDEWEB)

    Heinemann, Marc Daniel; Ananthanarayanan, Krishnamoorthy; Thummalakunta, L.N.S.A.; Yong, Chian Haw; Luther, Joachim [Singapore National Univ. (SG). Solar Energy Research Inst. of Singapore (SERIS)

    2011-07-01

    The current state of the art solution processed organic photovoltaic (OPV) cells are based on the bulk heterojunction (BHJ) architecture, consisting of an active layer, in which the donor and the acceptor material are dissolved in a common solvent. In this report, we show that by sequential processing of the active components and by subsequent annealing a &apos;'pseudo-bilayer'&apos; can be formed which results in an enhanced nanomorphology for efficient charge generation and extraction. The enhanced nanomorphology arises from the inter-diffusion of the PCBM nanoparticles into a layer of pre-organised polymer P3HT instead of a phase separation that happens at the time of spin-coating and annealing in the case of conventional BHJ devices. To get a further insight into the inter-diffusion process, TOF-SIMS depth profiling and XPS measurements were carried out for different thermal annealing treatments of these pseudo-bilayer devices, which show full inter-diffusion after only seconds of annealing at 140 C. The optimised photovoltaic devices that were fabricated showed an efficiency of 4.1%. (orig.)

  3. &apos;&apos;1/f noise&apos;&apos; in music: Music from 1/f noise

    Energy Technology Data Exchange (ETDEWEB)

    Voss, R.F.; Clarke, J.

    1978-01-01

    The spectral density of fluctuations in the audio power of many musical selections and of English speech varies approximately as 1/f (f is the frequency) down to a frequency of 5 x 10/sup -4/ Hz. This result implies that the audio-power fluctuations are correlated over all times in the same manner as &apos;&apos;1/f noise&apos;&apos; in electronic components. The frequency fluctuations of music also have a 1/f spectral density at frequencies down to the inverse of the length of the piece of music. The frequency fluctuations of English speech have a quite different behavior, with a single characteristic time of about 0.1 s, the average length of a syllable. The observations on music suggest that 1/f noise is a good choice for stochastic composition. Compositions in which the frequency and duration of each note were determined by 1/f noise sources sounded pleasing. Those generated by white-noise sources sounded too random, while those generated by 1/f/sup 2/ noise sounded too correlated.

  4. In vivo imaging of &apos;'neuroinflammation'&apos;. Principles and applications; In-vivo-Darstellung &apos;'neuroinflammatorischer'&apos; Veraenderungen mit [{sup 11}C] PK11195-PET. Grundlagen und Anwendung

    Energy Technology Data Exchange (ETDEWEB)

    Gerhard, A.; Banati, R.B. [MRC Clinical Sciences Centre and Div. of Neuroscience, Faculty of Medicine, Imperial Coll., London (United Kingdom)

    2002-09-01

    Microglia are the brains&apos; resident immunocompetent cells that can be activated by acute as well as chronic pathological stimuli. When activated they express the peripheral benzodiazepine binding site to which the isoquinolin PK11195 binds with high specificity. Labelled with [{sup 11}C], the R-enatiomer [{sup 11}C] PK1195 has been used for positron emission tomography (PET) studies to demonstrate neuroinflammatory changes in vivo. [{sup 11}C](R) PK11195-PET has been successfully used to show in vivo microglial activation in ischemic (stroke), inflammatory (multiple sclerosis) and degenerative (Alzheimer&apos;s and Parkinson&apos;s disease). Longitudinal studies are in progress to help to clarify the relationship between localisation and extent of microglial activation and the clinical presentations in these disorders. This will help to determine the role of [{sup 11}C](R) PK11195 PET as a diagnostic tool and a surrogate marker of &apos;'neuroinflammation'&apos; in therapeutic trials. (orig.) [German] Mikroglia sind residente immunkompetente Zellen des Gehirns, die durch akute, aber auch langsam voranschreitende, chronische Schaedigungprozesse aktiviert werden. Im aktivierten Zustand exprimieren sie den peripheren Benzodiazepinrezeptor, an den das Isoquinolin PK11195 spezifisch bindet. Radioaktiv markiert kann das R-Enantiomer [{sup 11}C] PK11195 als Ligand in der Positronenemissionstomographie (PET) genutzt werden und ermoeglicht so die In-vivo-Darstellung aktiver &apos;'neuroinflammatorischer'&apos;, d.h. die Mikroglia aktivierender, Veraenderungen. Mit der [{sup 11}C](R) PK11195-PET konnte bisher In-vivo-Mikrogliaaktivierung bei ischaemischen (Schlaganfall), entzuendlichen (multiple Sklerose) und degenerativen (Morbus Alzheimer- und Parkinson-Erkrankung) demonstriert werden. Laufende longitudinale Studien werden dazu beitragen, die Beziehung zwischen Lokalisation und Ausmass der Mikrogliaaktivierung und klinischer Krankheitsauspraegung

  5. Internet of &apos;'printed'&apos; Things: low-cost fabrication of autonomous sensing nodes by inkjet printing

    International Nuclear Information System (INIS)

    &apos;&apos;What if electronics devices are printed using an inkjet printer even at home?&apos;&apos; &apos;&apos;What if those devices no longer need a battery?&apos;&apos; I will introduce two enabling technologies for the Internet of Things concept. 1. Instant Inkjet Circuits: A low cost, fast and accessible technology to support the rapid prototyping of electronic devices. We demonstrated that &apos;'sintering-free'&apos; silver nano particle ink with a commodity inkjet printer can be used to fabricate printed circuit board and high-frequency applications such as antennas and sensors. The technology is now commercialized by AgIC, Inc. 2. Wireless Power: Although large amounts of data can be exchanged over a wireless communication link, mobile devices are still tethered by power cables. We are trying to solve this problem by two different approaches: energy harvesting. A simple circuitry comprised of diodes and capacitor can convert ambient radio signals into DC current. Our research revealed the signals from TV tower located 6.5km apart could be used to feed 100 microwatts to power microcontrollers

  6. The atmospheric cycling of radiomethane and the &apos;&apos;fossil fraction&apos;&apos; of the methane source

    Directory of Open Access Journals (Sweden)

    K. R. Lassey

    2006-06-01

    Full Text Available The cycling of 14CH4 (&apos;'radiomethane'&apos; through the atmosphere has been strongly perturbed in the industrial era by the release of 14C-free methane from geologic reservoirs (&apos;&apos;fossil methane&apos;&apos; emissions, and in the nuclear era, especially since ca 1970, by the direct release of nucleogenic radiomethane from nuclear power facilities. Contemporary measurements of atmospheric radiomethane have been used to estimate the proportion of fossil methane in the global methane source (the &apos;&apos;fossil fraction&apos;&apos;, but such estimates carry high uncertainty due to the ill-determined nuclear-power source. We exploit an analysis in a companion paper of the global radiomethane budget through the nuclear era, using contemporary measurements of atmospheric radiomethane since 1986 to quantify both the fossil fraction and the strength of the nuclear power source. We deduce that 28.6±1.9% (1 s.d. of the global methane source has fossil origin, a fraction which may include some 14C-depleted refractory carbon fraction such as in aged peat deposits. The co-estimated strength of the global nuclear-power source of radiomethane is consistent with values inferred independently from local nuclear facilities.

  7. Study and designing of the &apos;'caliprax'&apos; measurement bench; Etude et realisation du banc &apos;'caliprax'&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Barriere, J.Ch

    2001-09-01

    Probing the matter in order to check its elementary constituents, that is the goal of the particle physic. In this field, the experiments consist in colliding highly energetic particle beams and observing the new born particles. These observations are based on big particle detectors whose running is dependant on the precise knowledge of their geometry (position of the detection chambers). To achieve this, the detectors are equipped with alignment sensors, which have to be calibrated before. This document describes the study and the making of a calibration bench for the &apos;Praxial&apos; (PRoximity AXIAL) type sensors, and other works related to these sensors. In a first part, we determine and apply a method to set the tools used to fix the sensor stands on the detection chambers. These settings are made with the use of a tridimensional measuring machine. Then, we study the stands themselves. These investigations concern mechanics: positioning quality of the sensors in their stands, bending of the supports due to the tightening. In this part too, the studies are in the field of dimensional metrology. After this, the works are reoriented toward the bench, with the choice of the displacement sensors among two different technologies: optical, with the Rasnik system, and mechanical, with linear probes as LVDT (Linear Variable Differential Transformer). Following the discovery of an ambiguity on the Rasnik system, we go on the tests to understand its behaviour. We introduce the theory of the alignment sensors calibration, which is based on a minimization calculation. The computer programs are explained in a chapter, and in an other, the implementation of the quality assurance procedures. An other part describes the mechanical studies and the problems they cause. Because of a delay onset of the project, we make a model of the bench. This dummy allows us to test every single function of the final bench. With this device, we record manually the first calibration data and

  8. Sex Differences in Presynaptic Density and Neurogenesis in Middle-Aged ApoE4 and ApoE Knockout Mice

    Directory of Open Access Journals (Sweden)

    A. Rijpma

    2013-01-01

    Full Text Available Atherosclerosis and apolipoprotein E ε4 (APOE4 genotype are risk factors for Alzheimer’s disease (AD and cardiovascular disease (CVD. Sex differences exist in prevalence and manifestation of both diseases. We investigated sex differences respective to aging, focusing on cognitive parameters in apoE4 and apoE knockout (ko mouse models of AD and CVD. Presynaptic density and neurogenesis were investigated immunohistochemically in male and female apoE4, apoE ko, and wild-type mice. Middle-aged female apoE4 mice showed decreased presynaptic density in the inner molecular layer of the dentate gyrus of the hippocampus. Middle-aged female apoE ko mice showed a trend towards increased neurogenesis in the hippocampus compared with wild-type mice. No differences in these parameters could be observed in middle-aged male mice. Specific harmful interactions between apoE4 and estrogen could be responsible for decreased presynaptic density in female apoE4 mice. The trend of increased neurogenesis found in female apoE ko mice supports previous studies suggesting that temporarily increased amount of synaptic contacts and/or neurogenesis is a compensatory mechanism for synaptic failure. To our knowledge, no other studies investigating presynaptic density in aging female apoE4 or apoE ko mice are available. Sex-specific differences between APOE genotypes could account for some sex differences in AD and CVD.

  9. VEGF Mediates ApoE4-Induced Neovascularization and Synaptic Pathology in the Choroid and Retina.

    Science.gov (United States)

    Antes, Ran; Salomon-Zimri, Shiran; Beck, Susanne C; Garcia Garrido, Marina; Livnat, Tami; Maharshak, Idit; Kadar, Tamar; Seeliger, Mathias; Weinberger, Dov; Michaelson, Daniel M

    2015-01-01

    Apolipoprotein E4 (apoE4), the most prevalent genetic risk factor for Alzheimer's disease (AD), is associated with neuronal and vascular impairments. Recent findings suggest that retina of apoE4 mice have synaptic and functional impairments. We presently investigated the effects of apoE4 on retinal and choroidal vasculature and the possible role of VEGF in these effects. There were no histological differences between the retinal and choroidal vasculatures of naïve apoE3 and apoE4 mice. In contrast, laserdriven choroidal injury induced higher levels of choroidal neovascularization (CNV) in apoE4 than in apoE3 mice. These effects were associated with an inflammatory response and with activation of the Muller cells and asrocytic markers gluthatione synthetase and GFAP, all of which were more pronounced in the apoE4 mice. CNV also induced a transient increase in the levels of the synaptic markers synaptophysin and PSD95 which were however similar in the apoE4 and apoE3 naive mice. Retinal and choroidal VEGF and apoE levels were lower in naïve apoE4 than in corresponding apoE3 mice. In contrast, VEGF and apoE levels rose more pronouncedly following laser injury in the apoE4 than in apoE3 mice. Taken together, these findings suggest that the apoE4-induced retinal impairments, under basal conditions, may be related to reduced VEGF levels in the eyes of these mice. The hyper-neovascularization in the apoE4 mice might be driven by increased inflammation and the associated surge in VEGF following injury. Retinal and choroidal VEGF and apoE levels were lower in naïve apoE4 than in corresponding apoE3 mice. In contrast, VEGF and apoE levels rose more pronouncedly following laser injury in the apoE4 than in apoE3 mice. Taken together, these findings suggest that the apoE4-induced retinal impairments, under basal conditions, may be related to reduced VEGF levels in the eyes of these mice. The hyper-neovascularization in the apoE4 mice might be driven by increased inflammation

  10. &apos;&apos;Whither Deterrence?&apos;&apos; A Brief Synopsis May, 2002

    Energy Technology Data Exchange (ETDEWEB)

    Poppe, C; Vergino, E; Barker, R; Brown, P; Gilmartin, T J; Nach, M; Sloss, L

    2002-05-29

    To most audiences, deterrence has been interconnected with nuclear weapons whose purpose had been to deter a Soviet attack. But, the Soviet Union has been gone for almost a decade. President George W. Bush has stated that Russia is not an enemy of the US and the numbers of nuclear weapons can be dramatically reduced. It is important to note that deterrence has always transcended nuclear weapons. The US&apos; first line of deterrence has been its formidable conventional warfare capability, designed to prevent conflict and win wars if necessary. The role of nuclear weapons has been to deter the,use of nuclear weapons and other weapons of mass destruction against U.S. interests during the conduct of conventional warfare and to ensure our ability to inflict massive destruction on any who would use nuclear weapons, or other weapons of mass destruction, against us. With regard to the Soviet Union, the threat of the use of nuclear weapons was a critical component of our deterrent to prevent massive Soviet conventional attack against our allies in Europe. However, the events of September 11, 2001 make clear that we have not convinced all who seek to harm us that we will be able to respond in a manner to make them wish they had not even tried. The September 11 attacks, as well as other past conflicts, do not mean that deterrence has failed-it remains effective against the threats for which it was designed. We have known there are other threats for which we did not have a credible deterrent. The challenge is to sustain deterrence against the classic threats as they evolve in technical sophistication while remaining alert to the need to evaluate continuously our ability to deter previously unforeseen challenges. How then should we be looking at deterrence as we consider fifteen or so years in the future, say to about 2015? What will be the role of nuclear weapons and other instruments of mass destruction in the future? What should the US be doing to prepare for the future? In

  11. &apos;'Routine'&apos; brain CT in psychiatric patients - does it make sense?; &apos;'Routine'&apos;-Schaedel-CT in der psychiatrischen Diagnostik

    Energy Technology Data Exchange (ETDEWEB)

    Pickuth, D.; Heywang-Koebrunner, S.H.; Spielmann, R.P. [Martin-Luther-Universitaet Halle-Wittenberg, Halle (Germany). Klinik und Poliklinik fuer Diagnostische Radiologie

    1999-11-01

    Purpose: To prospectively assess the spectrum of brain CT findings in psychiatric patients and to determine the number of patients that had an underlying cause for the symptoms. Patients and methods: Over a period of six months, 142 patients (78 males, 64 females; median age 61 [18-91] years) were referred for CT brain scans. Their scans were reviewed, along with the clinical information that was provided in the request form. All the hard copies were reviewed to assess areas of ischaemia, infarction, atrophy, tumours, and haematomas. The majority of requests were to exclude vascular event or space-occupying lesions. Clinical indications included mood disorders (depression, mania), schizophrenic disorders, dementia, personality and behavioural disorders. Results: 31 (22%) were normal. 111 (78%) had varying degrees of ischaemia, infarction and cerebral/cerebellar atrophy. 7 (4.9%) had space-occupying lesions which included two gliomas and five meningiomas. There were two chronic subdural haematomas and one arteriovenous malformation. Conclusion: 1. In our series, pathologic findings in &apos;routine&apos; brain CT&apos;s were encountered in 78%. 2. The incidence of brain tumours was 4.9%, compared with 0.00005% of the general population. 3. CT scanning in psychiatric patients is cost-effective and especially indicated when there is an atypical presentation, or inadequate response to standard treatment. (orig.) [German] Hintergrund: Bei psychiatrischen Patienten wird vielerorts routinemaessig eine kraniale Computertomographie (CCT) durchgefuehrt. Ob der Nutzen die Kosten rechtfertigt, wurde im Rahmen einer Prospektivstudie untersucht. Patienten und Methode: In einem Zeitraum von 6 Monaten wurde bei 142 psychiatrischen Patienten (78 Maenner, 64 Frauen, 18-91 Jahre, Median 61 Jahre) ein CCT angefertigt. Die Untersuchung erfolgt nativ in 5-mm-Schichtdicke, bei klinischem Verdacht auf eine intrakraniale Raumforderung auch kontrastverstaerkt. Ueberweisungsdiagnosen waren v

  12. The effect of a high-fat diet on brain plasticity, inflammation and cognition in female ApoE4-knockin and ApoE-knockout mice

    NARCIS (Netherlands)

    C.I.F. Janssen (Carola); D. Jansen (Diane); M.P.C. Mutsaers (Martina); J. Dederen (Jos); B. Geenen (Bram); M. Mulder (Monique); A.J. Kiliaan Kiliaan (Amanda J.)

    2016-01-01

    textabstractApolipoprotein E4 (ApoE4), one of three common isoforms of ApoE, is a major risk factor for late-onset Alzheimer disease (AD). ApoE-deficient mice, as well as mice expressing human ApoE4, display impaired learning and memory functions and signs of neurodegeneration. Moreover, ApoE protec

  13. Extracellular proteolysis of apolipoprotein E (apoE by secreted serine neuronal protease.

    Directory of Open Access Journals (Sweden)

    Irfan Y Tamboli

    Full Text Available Under normal conditions, brain apolipoprotein E (apoE is secreted and lipidated by astrocytes, then taken up by neurons via receptor mediated endocytosis. Free apoE is either degraded in intraneuronal lysosomal compartments or released. Here we identified a novel way by which apoE undergoes proteolysis in the extracellular space via a secreted neuronal protease. We show that apoE is cleaved in neuronal conditioned media by a secreted serine protease. This apoE cleavage was inhibited by PMSF and α1-antichymotrypsin, but not neuroserpin-1 or inhibitors of thrombin and cathepsin G, supporting its identity as a chymotrypsin like protease. In addition, apoE incubation with purified chymotrypsin produced a similar pattern of apoE fragments. Analysis of apoE fragments by mass spectrometry showed cleavages occurring at the C-terminal side of apoE tryptophan residues, further supporting our identification of cleavage by chymotrypsin like protease. Hippocampal neurons were more efficient in mediating this apoE cleavage than cortical neurons. Proteolysis of apoE4 generated higher levels of low molecular weight fragments compared to apoE3. Primary glial cultures released an inhibitor of this proteolytic activity. Together, these studies reveal novel mechanism by which apoE can be regulated and therefore could be useful in designing apoE directed AD therapeutic approaches.

  14. SHORT GAMMA-RAY BURSTS IN THE &apos;'TIME-REVERSAL'&apos; SCENARIO

    Energy Technology Data Exchange (ETDEWEB)

    Ciolfi, Riccardo [Physics Department, University of Trento, Via Sommarive 14, I-38123 Trento (Italy); Siegel, Daniel M., E-mail: riccardo.ciolfi@unitn.it, E-mail: daniel.siegel@aei.mpg.de [Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Mühlenberg 1, D-14476 Potsdam-Golm (Germany)

    2015-01-10

    Short gamma-ray bursts (SGRBs) are among the most luminous explosions in the universe and their origin still remains uncertain. Observational evidence favors the association with binary neutron star or neutron star-black hole (NS-BH) binary mergers. Leading models relate SGRBs to a relativistic jet launched by the BH-torus system resulting from the merger. However, recent observations have revealed a large fraction of SGRB events accompanied by X-ray afterglows with durations ∼10{sup 2}-10{sup 5} s, suggesting continuous energy injection from a long-lived central engine, which is incompatible with the short (≲ 1 s) accretion timescale of a BH-torus system. The formation of a supramassive NS, resisting the collapse on much longer spin-down timescales, can explain these afterglow durations, but leaves serious doubts on whether a relativistic jet can be launched at the merger. Here we present a novel scenario accommodating both aspects, where the SGRB is produced after the collapse of a supramassive NS. Early differential rotation and subsequent spin-down emission generate an optically thick environment around the NS consisting of a photon-pair nebula and an outer shell of baryon-loaded ejecta. While the jet easily drills through this environment, spin-down radiation diffuses outward on much longer timescales and accumulates a delay that allows the SGRB to be observed before (part of) the long-lasting X-ray signal. By analyzing diffusion timescales for a wide range of physical parameters, we find delays that can generally reach ∼10{sup 5} s, compatible with observations. The success of this fundamental test makes this &apos;'time-reversal'&apos; scenario an attractive alternative to current SGRB models.

  15. The trochlear cleft: the &apos;&apos;black line&apos;&apos; of the trochlear trough

    Energy Technology Data Exchange (ETDEWEB)

    Wissman, Robert D.; Nepute, Joshua; Fischer, Nathaniel von; Radhakrishnan, Rupa; Hendry, Daniel [University of Cincinnati Medical Center, Department of Radiology, Cincinnati, OH (United States); Ingalls, Jerrell [Desert Radiologists, Las Vegas, NV (United States); Kenter, Keith [University of Cincinnati Medical Center, Department of Orthopaedic Surgery, Cincinnati, OH (United States)

    2012-09-15

    The &apos;&apos;cartilage black line sign&apos;&apos; is a recently described T2 dark cartilage lesion that we have identified appearing as a cleft in the trochlear trough. The purpose of our study was to define the MR imaging characteristics of a trochlear cleft, determine its incidence, and correlate the MR findings with arthroscopy. A total of 1,300 consecutive MR examinations of the knee were retrospectively reviewed by consensus of two fellowship-trained musculoskeletal radiologists. The MR imaging characteristics and location of a trochlear cleft were determined. Imaging results were compared to arthroscopy when available. Patient age and gender were compared to 25 randomly selected control patients without trochlear clefts. A total of 25 (1.9%) individuals (11 females and 14 males; age range 19-45 years; mean age 28 years) were diagnosed with a trochlear cleft. The control group consisted of 11 females and 14 males; age range 19-83 years; mean age 46 years. Mean cleft length was 7 mm (range 6-12 mm); cleft location was consistently in the lower trochlear trough. No full-thickness cartilage defects were identified in the eight individuals in whom arthroscopic correlation was available. A grade 2 cartilage lesion was identified in a single individual; another progressed from grade 0 to a full-thickness trochlear lesion over an 8-month interval. Eight individuals were athletes. No significant difference in gender was noted between the two groups, however, the study group was significantly younger p < 0.0001. A trochlear cleft is a rare finding in young active individuals. It most likely indicates an incomplete cartilage fissure which may rarely progress to a full-thickness defect. (orig.)

  16. &apos;&apos;Atomic Optics&apos;&apos;: Nonimaging Optics on the Nanoscale

    Energy Technology Data Exchange (ETDEWEB)

    Roland Winston Joseph O' Gallagher

    2005-01-15

    This is the final report for a one year close out extension of our basic research program that was established at the University of Chicago more than sixteen years ago to explore and develop the optical sub-discipline that has come to be known as &apos;&apos;nonimaging optics&apos;&apos;. This program has been extremely fruitful, having both broadened the range of formalism available for workers in this field and led to the discovery of many new families of optical devices. These devices and techniques have applications wherever the efficient transport and transformation of light distributions are important, in particular in illumination, fiber optics, collection and concentration of sunlight, and the detection of faint light signals in physics and astrophysics. Over the past thirty years, Nonimaging Optics (Welford and Winston, 1989) has brought a fresh approach to the analysis of many problems in classical macro-scale optics. Through the application of phase-space concepts, statistical methods, thermodynamic arguments, etc., many previously established performance limits were able to be broken and many technical surprises with exciting practical applications were discovered. The most recent three-year phase of our long-term continuing program ended in late 2002 and emphasized extending our work in geometrical optics and expanding it to include some interesting questions in physical optics as well as in the new field of statistical optics. This report presents a survey of the basic history and concepts of nonimaging optics and reviews highlights and significant accomplishments over the past fifteen years. This is followed by a more detailed summary of recent research directions and accomplishments during the last three years. This most recent phase was marked by the broadening in scope to include a separate project involving a collaboration with an industrial partner, Science Applications International Corporation (SAIC). This effort was proposed and approved in

  17. The adductor magnus &apos;'mini-hamstring'&apos;: MRI appearance and potential pitfalls

    Energy Technology Data Exchange (ETDEWEB)

    Broski, Stephen M.; Murthy, Naveen S.; Collins, Mark S. [Department of Radiology, Mayo Clinic, Rochester, MN (United States); Krych, Aaron J. [Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN (United States); Obey, Mitchel R. [Mayo School of Graduate Medical Education, Rochester, MN (United States)

    2016-02-15

    To examine the anatomic MRI characteristics of the adductor magnus mini hamstring (AMMH) and explore its involvement in cases of hamstring avulsion. An IRB-approved retrospective review of patients undergoing &apos;&apos;hamstring protocol&apos;&apos; MRI between March 2009 and June 2014 was performed. Two musculoskeletal radiologists recorded multiple AMMH anatomic characteristics and involvement in cases of hamstring avulsion. Seventy-six AMMHs were analyzed in 66 patients [35 females and 31 males, mean age 49.3 ± 15.2 years (range 17-81)]. Eleven percent of AMMHs were poorly visualized, 51 % visualized, and 37 % well visualized. Seven percent demonstrated round, 73 % ovoid, and 21 % flat/lenticular tendon morphologies. Most (88 %) demonstrated typical origins. Average cross-sectional area (CSA) was 22.4 ± 10.6 mm{sup 2} (range 6-56), diameter was 7.2 ± 2.5 mm (range 2.9-15), medial distance from the semimembranosus tendon was 7.5 ± 2.5 mm (range 3-14), and tendon length was 6.8 ± 3.3 cm (range 1.2-14.1). There was no gender difference in AMMH anatomic measurements or correlation between age and CSA or diameter. Of 17 complete hamstring avulsion cases, the AMMH was intact in 13, partially torn in 3, and completely torn in 1. The AMMH is a constant finding with variable anatomic characteristics. It is visualized or well visualized by MRI in 88 % of cases and is a sizable tendon located in close proximity to the semimembranosus tendon. Because it is uncommonly completely torn (6 %) in cases of complete hamstring avulsion, radiologists should be aware of its presence and appearance to avoid diagnostic confusion. (orig.)

  18. Report of working committee 3 &apos;&apos;liquefied gases&apos;&apos;; Rapport du comite de travail 3 &apos;&apos;gaz liquefies&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Baudino, M.

    2000-07-01

    Working Committee 3&apos;s report concerns the evolution of the liquefied gas industry: both liquefied natural gas (LNG) and liquefied petroleum gases (LPG). Given the current state of the LNG market the Committee decided to concentrate on this area in particular. A number of aspects have been identified which the Committee has been looking at, while others have been given to Study Groups set up specifically for the purpose. The first aspects regard: - the development of LNG and LPG, new installations, future chains and relevant statistical data; - the role of LNG and LPG in starting up a gas industry; - operating and technological improvements in the LNG industry; - energy savings, cold utilization and reduction of CO{sub 2} emissions. The Study Groups which were set up dealt with the following subjects: Technological and Economical Developments for cost Reduction of LNG/LPG Facilities. Small Scale LNG Projects and Modular Systems. LNG/LPG Peak Shaving and Satellite Plants. LNG versus Pipeline Infrastructure. (author)

  19. &apos;Fail-to-safety&apos; methane drainage system

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-01-01

    Queensland-based Capricorn Coal Management and SMC Pneumatics (Australia) have developed a new methane drainage system incorporating a pneumatically controlled &apos;automatic shut down system&apos; (ASDS) that, in an emergency situation, automatically terminates the flow of gas at the source with automatic shut-off valves. The air supply unit incorporates two air compressors operating in a rotating cycle to ensure continuous supply with pressure and flow measurement sensors and solenoid valves configured to &apos;fail-to-safety&apos; in the event of power failure. The SMC-Capcoal system has been operating successfully for two years at Capcoal&apos;s Central colliery, Queensland&apos;s first longwall mine. It can shut off methane flows within 90 seconds. 3 photos.

  20. The &apos;Instrumental&apos; Reality of Phlogiston

    Directory of Open Access Journals (Sweden)

    Mi Gyung Kim

    2008-07-01

    Full Text Available The stability of phlogiston in eighteenth-century French chemistry depended not on its role as a comprehensive theory, but on its operational (instrumental, theoretical, and philosophical (speculative identities that were forged in different contexts, yet were interwoven to designate a single substance. It was as &apos;real&apos; as any other chemical substance to the degree that it was obtained through material operations, occupied a place in the theoretical edifice of the affinity table, and was endowed with a corpuscular ontology. Lavoisier labeled it as an &apos;imaginary&apos; substance because it offered a unique resistance to his vision of the new chemistry based on &apos;metric&apos; measurements and algebraic representations.

  1. &apos;Action 2016&apos;: AREVA&apos;s strategic action plan; AREVA presente son Plan d&apos;Actions Strategique &apos;Action 2016&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Marie, Patricia; Briand, Pauline; Floquet-Daubigeon, Fleur; Michaut, Maxime; De Scorbiac, Marie; Du Repaire, Philippine

    2011-12-13

    On December 13, 2011, Luc Oursel, CEO, and Pierre Aubouin, Chief Financial Officer presented the group&apos;s strategic plan for the period 2012-2016. The plan has been drawn up collectively and is based on a thorough-going analysis and a realistic assessment of perspectives for all group activities and associated resources. Development of nuclear and renewable energies: the fundamentals are unchanged. In this context, the German decision remains an isolated case and the great majority of nuclear programs around the world have been confirmed. More conservative in its projections than the International Energy Agency, the group expects growth of 2.2% annually, reaching 583 GW of installed nuclear capacity by 2030, against 378 GW today. However, the Fukushima accident will lead to delays in launching new programs. &apos;Action 2016&apos; plan aims to consolidate AREVA&apos;s leadership in nuclear energy and become a leading player in renewable energy. The group&apos;s strategic action plan &apos;Action 2016&apos; is based on the following strategic choices: - commercial priority given to value creation, - selectivity in investments, - strengthening of the financial structure. These demand an improvement in the group&apos;s performance by 2015. This plan makes nuclear safety a strategic priority for the industrial and commercial performance of the group. This ambitious performance plan for the period 2012-2016 will give the group the wherewithal to withstand a temporary slowdown in the market resulting from the Fukushima accident and to deliver safe and sustainable growth of the business. The plan sets out the strategic direction for the group&apos;s employees for the years ahead: taking advantage of the expected growth in nuclear and renewable energies, targeted investment programs, and return to self-financing as of 2014

  2. &apos;&apos;Rueckbau 2014&apos;&apos;. KWS Congress regarding decommissioning and dismantling at Zwentendorf nuclear training power plant; &apos;&apos;Rueckbau 2014&apos;&apos;. KWS-Rueckbau-Fachtagung im Schulungskernkraftwerk Zwentendorf

    Energy Technology Data Exchange (ETDEWEB)

    Maassen, Herbert [KRAFTWERKSSCHULE E.V. (KWS), Essen (Germany)

    2015-06-01

    From September 24 to 25, 2014, KRAFTWERKS-SCHULE E.V. (KWS) held the congress &apos;&apos;Rueckbau 2014&apos;&apos;.This first congress about nuclear power plant decommissioning was combined with an exhibition in the fully equipped Zwentendorf nuclear training power plant. The exhibitors had the opportunity to present and test their products in the ambience of a real nuclear power plant, close to original plant components. The visitors got a general overview of the on-site conditions. During the lectures the process of decommissioning and dismantling of a nuclear power plant were described, problems within this process were discussed, and possible solutions were recommended.

  3. Quantifying the &apos;naturalness&apos; of the curvaton model

    Energy Technology Data Exchange (ETDEWEB)

    Lerner, Rose N. [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Helsinki Institute of Physics (Finland); Melville, Scott [Helsinki Institute of Physics (Finland)

    2014-02-15

    We investigate the probability of obtaining an observable curvature perturbation, using as an example the minimal curvaton-Higgs (MCH) model. We determine &apos;probably observable&apos; and &apos;probably excluded&apos; regions of parameter space assuming generic initial conditions and applying a stochastic approach for the curvaton&apos;s evolution during inflation. Inflation is assumed to last longer than the N{sub obs}≅55 observable e-folds, and the total number of e-folds of inflation determines the particular ranges of parameters that are probable. For the MCH model, these &apos;probably observable&apos; regions always lie within the range 8 x 10{sup 4} GeV≤m{sub σ}≤2 x 10{sup 7} GeV, where m{sub σ} is the curvaton mass, and the Hubble scale at horizon exit is chosen as H{sub *}=10{sup 10} GeV. Because the &apos;probably observable&apos; region depends on the total duration of inflation, information on parameters in the Lagrangian from particle physics and from precision CMB observables can therefore provide information about the total duration of inflation, not just the last N{sub obs} e-folds. This method could also be applied to any model that contains additional scalar fields to determine the probability that these scalar fields contribute to the curvature perturbation.

  4. Chemical composition of Lantana camara L. leaf essential oil and its biological activity to three insect pests%马缨丹叶片精油化学成分及其对三种害虫的生物活性

    Institute of Scientific and Technical Information of China (English)

    韩萌; 罗兰; 袁忠林; Ahn Young-Joon

    2016-01-01

    【目的】为探讨马缨丹Lantana camara L.叶片精油化学成分以及其对3种害虫的生物活性,以应用于生物防治。【方法】马缨丹叶片经水蒸气蒸馏法提取精油,产率为0.21%。经过气-质联用仪(GC-MS)分析,从马缨丹叶片精油中检测出主要的26种化合物,其中α-姜黄烯(α-curcumene,32.76%),β-石竹烯(β-caryophyllene,16.36%),石竹烯氧化物(Caryophyllene oxide,12.22%),桉油烯醇(Spathulenol,10.48%)含量较高,并对3种不同害虫进行生物活性测定。【结果】生物测定结果表明,马缨丹精油对米象Sitophilus oryzae成虫和Ⅳ龄埃及伊蚊Aedes aegypti幼虫的触杀效果显著,LC50分别为0.92 mg/cm2和32.33μg/mL。随着浓度的升高,对白蚁驱避作用增强,白蚁死亡率增加;高浓度精油对白蚁有触杀作用,但较低浓度对白蚁无显著影响。【结论】本研究证明马缨丹叶片精油对3种害虫有良好防治的效果。%[Objectives] To investigate the chemical composition of Lantana camara L.leaf essential oil, its biological activity to 3 insect pests, and its potential as a means of controlling insect pests. [Methods] L. camara leaf essential oil was extracted using the steam distillation method which gave a yield of 0.21%. The essential oil was examined using an Agilent GC-MS (gas chromatograph-mass spectrometer-computer) system. 26 major constituents were identified, but the major constituents wereα-curcumene (32.76%),β-caryophyllene (16.36%), caryophyllene oxide (12.22%) and spathulenol (10.48%). After analysis of the chemical composition of this essential oil, its biological activity to 3 insect pests was determined. [Results] The contact toxicity and repellent effect of L.camara leaf essential oil were tested on Sitophilus oryzae adults, fourth instar larvae of Aedes aegypti, and Reticulitermes flavipes worker. These bioassays showed that the essential oil had significant

  5. An Anti-apoE4 Specific Monoclonal Antibody Counteracts the Pathological Effects of apoE4 In Vivo.

    Science.gov (United States)

    Luz, Ishai; Liraz, Ori; Michaelson, Daniel M

    2016-06-01

    ApolipoproteinE4 (apoE4) is the most prevalent genetic risk factor for Alzheimer's disease (AD) and as such is a promising therapeutic target. This study examined the extent to which the pathological effects of apoE4 can be counteracted in vivo utilizing an immunological approach in which anti-apoE4 antibodies are applied peripherally by i.p. injections into apoE4-targeted replacement mice. Prerequisites for the successful pursuit of this objective are the availability of antibodies that specifically bind brain apoE4 and not apoE3, and demonstrating that direct application of these antibodies into the brain can counteract the effects of apoE4. Accordingly, it was shown that the antiapoE4 monoclonal antibody (mAb) 9D11 binds specifically to brain apoE4 and not apoE3. Direct i.c.v. application of mAb 9D11 prevented the apoE4-driven accumulation of Aβ in hippocampal neurons following activation of the amyloid cascade by inhibiting the Aβ-degrading enzyme neprilysin. These findings provide a proof-of-concept that anti-apoE4 mAb 9D11, when introduced into the brain, can counteract the apoE4 effects in vivo. Subsequent experiments, utilizing repeated i.p. injections of mAb 9D11, resulted in the formation of apoE/IgG complexes specifically in apoE4 mice. This was associated with reversal of the cognitive impairments of apoE4 in the Morris water maze and the novel object recognition test as well as with reversal of key apoE4-driven pathologies including the hyperphosphorylated tau and the reduced levels of the apoER2 receptor. These results indicate that anti-apoE4 immunotherapy counteracts the cognitive and brain pathological effects of apoE4, and suggest that such an approach could also benefit human apoE4 carriers.

  6. Maintain levels of nicotine but reduce other smoke constituents: a formula for &apos;'less-hazardous'&apos; cigarettes

    Energy Technology Data Exchange (ETDEWEB)

    Robinson, J.C.; Young, J.C.; Rickert, W.S.

    1984-09-01

    Twenty-two volunteers who smoked more than 20 cigarettes with &apos;'high'&apos; nicotine yields (0.8 to 1.2 mg) per day participated in an 8-week study designed to test the hypothesis that smoking cigarettes with a constant level of nicotine but reduced deliveries of tar, carbon monoxide, and hydrogen cyanide leads to a decrease in smoke absorption. All subjects smoked their usual high-nicotine brand for the first 3 weeks (P1), and the absorption of smoke constituents was determined from levels of thiocyanate and cotinine in saliva and serum, levels of carbon monoxide in expired air, and levels of carboxyhemoglobin in the blood. During the final 5 weeks (P2), the treatment group (16 subjects) switched to the &apos;'light'&apos; version of their usual brands (similar yields of nicotine but with reduced yields of tar, carbon monoxide, and hydrogen cyanide); the control group (6 subjects) smoked their usual brands for the duration of the study. Average levels of cotinine for the subjects who switched during P2 were not significantly different from those of the control group as was expected. Slight reductions were noted in average expired-air carbon monoxide levels, blood carboxyhemoglobin, and saliva thiocyanate, but these reductions were smaller than anticipated based on brand characteristics. The results suggest that the ratio of smoke constituents is different when individuals, rather than machines, smoke cigarettes. Yields determined under subject-defined conditions are necessary in order to properly evaluate the role of nicotine in the design of &apos;'less-hazardous'&apos; cigarettes.

  7. Electrolyzed-water generator &apos;SaniBoy&apos;; Eisei jokinsuik kyokyu sochi &apos;SaniBoy&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Inoue, M.; Kakiuchi, H.; Muto, K. [Fuji Electric Co. Ltd., Tokyo (Japan)

    2000-03-10

    In the food industry, injuries due to food poisoning have been increasing. Especially the mass outbreak of food poisoning by Escherichia coli such as O-157 in 1996 gave warning on the importance of food sanitation management. Public efforts such as the Hazard Analysis and Critical Control Point (HACCP) system have been made to prevent food poisoning. Recently, disinfection made by electrolyzing water with some salt added has attracted attention. Fuji Electric has developed the generator &apos;SaniBoy&apos; that produces weak alkaline electrolyzed water without wasting water. The environment-friendly &apos;SaniBoy&apos; will contribute to sanitation in various fields. (author)

  8. &apos;'Key'&apos; sectors in final energy consumption: an input-output application to the Spanish case

    Energy Technology Data Exchange (ETDEWEB)

    Alcantara, V.; Padilla, E. [Universitat Autonoma de Barcelona, Bellaterra (Spain). Dept. d' Economia Aplicada

    2003-12-01

    In this paper we analyze the determination of &apos;'key'&apos; sectors in the final energy consumption. We approach this issue from an input-output perspective and we design a methodology based on the elasticities of the demands of final energy consumption. As an exercise, we apply the proposed methodology to the Spanish economy. The analysis allows us to indicate the greater or lesser relevance of the different sectors in the consumption of final energy, pointing out which sectors deserve greater,attention in the Spanish case and showing the implications for energy policy. (author)

  9. Marketing manufactured housing under the &apos;&apos;Super Good Cents&apos;&apos; Program

    Energy Technology Data Exchange (ETDEWEB)

    Mohler, B.L.; Smith, S.A.

    1986-01-01

    The objective of this study is to propose a strategy for including manufactured housing (MH) in Bonneville Power Administration&apos;s Super Good Cents (SGC) Program. This report presents information on the site-built SGC program, the characterization of MH consumers, the options for including MH in the SGC program, and the recommendations for including MHs in the SGC program. The purposed strategy for including MHs in the SGC program is designed to reduce risks to manufacturers and dealers, stimulate demand, and allow for maximum flexibility.

  10. Radiobiological study of the radioprotective activity of a natural Iranian compound, &apos;'Shir-Khecht'&apos;; Etude radiobiologique de l&apos;activite radioprotectrice d&apos;un compose naturel Iranien: le &apos;'Shir-Khecht'&apos;

    Energy Technology Data Exchange (ETDEWEB)

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

    1968-01-01

    After reviewing the primary mechanisms of the action of ionizing radiation, the possible mechanisms of the action of radioprotective substances, the various chemical structures having a protective effect and the methods for studying chemical radioprotection, the author presents the results he has obtained with natural Iranian product: &apos;'Shir-Khecht'&apos;. Tests with this product at lethal and sublethal doses have been carried out on the rat using various means of introduction. The effect of radiation, both with and without protection, has been studied using histological and biochemical methods. The product examined has, in effect, a protective action; it is, furthermore, non-toxic and active when taken orally. (author) [French] Apres avoir rappele les mecanismes primaires de l&apos;action des rayonnements ionisants, les mecanismes possibles de l&apos;action des substances radioprotectrices, les diverses structures chimiques possedant un effet protecteur et les methodes d&apos;etude de la radioprotection chimique, l&apos;auteur presente les resultats qu&apos;il a obtenus en utilisant un compose naturel iranien: le &apos;'Shir-Khecht'&apos;. Des essais de ce produit, chez le rat, par diverses voies d&apos;introduction, a dose letale et subletale ont ete effectues. L&apos;effet des radiations, avec et sans protection, a ete etudie a l&apos;aide de methodes histologiques et biochimiques. Le compose essaye possede un pouvoir protecteur; il est, de plus, non toxique et actif par voie orale. (auteur)

  11. Under-Threes&apos; Mathematical Learning--Teachers&apos; Perspectives

    Science.gov (United States)

    Franzén, Karin

    2014-01-01

    This project highlights preschool teachers&apos; views of toddlers&apos; learning in mathematics. The Swedish national curriculum covers even the youngest children who are 1-3?years old. Interesting questions are thus: what should mathematics be for this age group and how should preschool teachers work with maths to achieve the curriculum…

  12. Development and utilization of a mechanical barrier for large-calibre cavern necks. The &apos;&apos;Spider Plug&apos;&apos;; Entwicklung und Einsatz einer mechanischen Absperrung fuer grosskalibrige Kavernenhaelse. Der &apos;&apos;Spider Plug&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Pfeifer, K.; Maut, D. [UGS GmbH, Mittenwalde (Germany)

    2013-08-01

    An hydraulic separation of a well and the cavern can be necessary for different workover applications, e.g. casing milling or underreaming. The separation is needed to ensure a mud circulation during such operations. In that case a barrier is set after flooding the cavern, which will then be used as a mechanical abutment for the cement bridge. If the diameter of the cavern neck has been enlarged due to e.g. unwanted leaching processes or unstabilized underreaming processes, it might get impossible to set a standard plug with the available technologies into those diameters. Therefore UGS GmbH has developed a mechanical plug, which is set hydraulically. The so called &apos;Spider Plug&apos; is used as basis for a cement bridge and can be removed by drilling after the workover has been done. Depending on the dimension of the setting tool a cavern neck up to 50&apos;&apos; diameter can be plugged by the &apos;Spider Plug&apos;. Up to now a number of successful operations on different locations has shown, that the &apos;Spider Plug&apos; is a practicable and cost-efficient solution for a mechanical abutment of large cavern necks. (orig.)

  13. Expression of the human apoE2 isoform in adipocytes: altered cellular processing and impaired adipocyte lipogenesis

    OpenAIRE

    Huang, Zhi H.; Maeda, Nobuyo; Mazzone, Theodore

    2011-01-01

    Expression of apoE in adipocytes has been shown to have an important role in modulating adipocyte triglyceride (TG) metabolism and gene expression that is independent of circulating and extracellular apoE. The impact of adipocyte expression of common human apoE isoforms was evaluated using adipocytes harvested from human apoE2, -3, and -4 knock-in mice. Expression of the apoE2 isoform was associated with an increase in adipocyte apoE gene expression and apoE synthesis. Newly synthesized apoE2...

  14. Comment on &apos;&apos;Teleportation of two-mode squeezed states&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    He Guangqiang; Zhang Jingtao [State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030 (China)

    2011-10-15

    We investigate the teleportation scheme of two-mode squeezed states proposed by Adhikari et al.[S. Adhikari et al., Phys. Rev. A 77, 012337 (2008)]. It uses four-mode entangled states to teleport two-mode squeezed states. The fidelity between the original two-mode squeezed states and teleported ones is calculated. The maximal fidelity value of Adhikari&apos;s protocol is 0.38, which is incompatible with the fidelity definition with the maximal value 1. In our opinion, one reason is that they calculate the fidelity for multimodes Gaussian states using the fidelity formula for single-mode ones. Another reason is that the covariance matrix of output states should be what is obtained after applying the linear unitary Bogoliubov operations (two cascaded Fourier transformations) on the covariance matrix given in Eq. (12) in their paper. These two reasons result in the incomparable results. In addition, Adhikari&apos;s protocol can be simplified to be easily implemented.

  15. Technology &apos;90

    Energy Technology Data Exchange (ETDEWEB)

    1991-01-01

    The US Department of Energy (DOE) laboratories have a long history of excellence in performing research and development in a number of areas, including the basic sciences, applied-energy technology, and weapons-related technology. Although technology transfer has always been an element of DOE and laboratory activities, it has received increasing emphasis in recent years as US industrial competitiveness has eroded and efforts have increased to better utilize the research and development resources the laboratories provide. This document, Technology &apos;90, is the latest in a series that is intended to communicate some of the many opportunities available for US industry and universities to work with the DOE and its laboratories in the vital activity of improving technology transfer to meet national needs. Technology &apos;90 is divided into three sections: Overview, Technologies, and Laboratories. The Overview section describes the activities and accomplishments of the DOE research and development program offices. The Technologies section provides descriptions of new technologies developed at the DOE laboratories. The Laboratories section presents information on the missions, programs, and facilities of each laboratory, along with a name and telephone number of a technology transfer contact for additional information. Separate papers were prepared for appropriate sections of this report.

  16. Finding the object&apos;&apos; proceedings addendum

    Energy Technology Data Exchange (ETDEWEB)

    Whiting, M.A.; Devaney, D.M.

    1990-10-01

    The purpose of this workshop was to discuss finding the object -- that is, how software engineers imagine, invent, design, or recycle objects and their behaviors for object-oriented software engineering. The workshop organizers (and, as we subsequently discovered, several of the workshop participants) felt that this issue is crucial to successful object-oriented software engineering (after all, finding objects is what the projects is all about, isn&apos;t it ). Unfortunately, when previous workshops have had the opportunity to review and discuss techniques practitioners use to find objects, too often the results were heated debates on what is an object &apos;&apos; which becomes all consuming. We believed that, given appropriate control over the question of which kind of object&apos;&apos; is being discussed (which meant tell us what object you are trying to find, then tell us your method), a workshop to concentrate on techniques for finding objects would be quite appropriate. 8 refs., 2 figs.

  17. &apos;Green Isle&apos; on the &apos;Red Isle&apos;. The gasometer in Berlin becomes a centre of the &apos;European Energy Forum&apos;; &apos;Gruene Insel&apos; auf der &apos;Roten Insel&apos;. Der Berliner Gasometer wird zum Zentrum des &apos;Europaeischen Energie Forums&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Meyer, Ulf

    2013-06-01

    If the ARD political talk show with Guenther Jauch starts on Sunday night after the crime thriller, only few viewers know that they are tele-guests on the former gasometer site in Berlin-Schoeneberg. Currently, this site is being transformed into an environmentally friendly campus called the &apos;European Energy Forum&apos; (EUREF). According to the will of the owner and architect Reinhard Mueller, the campus will become the largest CO{sub 2} neutral office and business location in Europe. Totally 600 million Euro will be invested. All new buildings should be ecological &apos;green buildings&apos; and received the LEED Gold certification.

  18. CONSTRAINING THE EVOLUTIONARY FATE OF CENTRAL COMPACT OBJECTS: &apos;'OLD'&apos; RADIO PULSARS IN SUPERNOVA REMNANTS

    International Nuclear Information System (INIS)

    Central compact objects (CCOs) constitute a population of radio-quiet, slowly spinning (≥100 ms) young neutron stars with anomalously high thermal X-ray luminosities. Their spin-down properties imply weak dipole magnetic fields (∼1010-11 G) and characteristic ages much greater than the ages of their host supernova remnants (SNRs). However, CCOs may posses strong &apos;'hidden'&apos; internal magnetic fields that may re-emerge on timescales of ≳10 kyr, with the neutron star possibly activating as a radio pulsar in the process. This suggests that the immediate descendants of CCOs may be masquerading as slowly spinning &apos;'old'&apos; radio pulsars. We present an X-ray survey of all ordinary radio pulsars within 6 kpc that are positionally coincident with Galactic SNRs in order to test the possible connection between the supposedly old but possibly very young pulsars and the SNRs. None of the targets exhibit anomalously high thermal X-ray luminosities, suggesting that they are genuine old ordinary pulsars unrelated to the superposed SNRs. This implies that CCOs are either latent radio pulsars that activate long after their SNRs dissipate or they remain permanently radio-quiet. The true descendants of CCOs remain at large

  19. &apos;&apos;Dural tail&apos;&apos; adjacent to acoustic neuroma on MRI: a case report

    Energy Technology Data Exchange (ETDEWEB)

    Lunardi, P. (Dept. of Neurological Sciences-Neurosurgery, Univ. ' ' La Sapienza' ' , Rome (Italy)); Mastronardi, L. (Dept. of Neurological Sciences-Neurosurgery, Univ. ' ' La Sapienza' ' , Rome (Italy)); Nardacci, B. (Dept. of Neurological Sciences-Neurosurgery, Univ. ' ' La Sapienza' ' , Rome (Italy)); Acqui, M. (Dept. of Neurological Sciences-Neurosurgery, Univ. ' ' La Sapienza' ' , Rome (Italy)); Fortuna, A. (Dept. of Neurological Sciences-Neurosurgery, Univ. ' ' La Sapienza' ' , Rome (Italy))

    1993-04-01

    A &apos;dural tail&apos; on Gd-DTPA-enhanced MRI has been often observed adjacent to meningiomas and considered to be useful in distinguishing meningioma of the cerebellopontine angle from acoustic neuroma. However, demonstration of a dural tail adjacent to an acoustic neuroma indicates that this sign is not specific. (orig.)

  20. Possibilities for a sustainable development. Muligheter for en baerekraftig utvikling; Analyser paa &apos;&apos;World Model&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Bjerkholt, O.; Johnsen, T.; Thonstad, K.

    1993-01-01

    This report is the final report of a project that the Central Bureau of Statistics of Norway has carried out. The report present analyses of the relations between economic development, energy consumption and emission of pollutants to air in a global perspective. The analyses are based on the &apos;&apos;World Model&apos;&apos;, that has been developed at the Institute for Economic Analysis at New York University. The analyses show that it will be very difficult to obtain a global stabilization of the CO[sub 2] emission on the 1990 level. In the reference scenario of the United Nations report &apos;&apos;Our Common Future&apos;&apos;, the increase of CO[sub 2] emissions from 1990 to 2020 was 73%. Even in the scenario with the most drastic measures, the emissions in 2020 will be about 43% above the 1990 level, according to the present report. A stabilization of the global emissions at the 1990 level will require strong measures beyond those assumed in the model calculations, or a considerable breakthrough in energy technology. 17 refs., 5 figs., 21 tabs.

  1. Cerebral Hemorrhage and APOE genotype

    Institute of Scientific and Technical Information of China (English)

    Sun xiaojiang; Wu ping; Zhang jing; Lu shanqing; Li bing

    2000-01-01

    Background and Purpose: Current evidence Suggests that the apolipoprotein E (APOE)ε 4 allele predisposes to cerebral amyloid angiopathy (CAA) whereas ε 2 is associated with CAA-zelated hemorrhage. In this study we examined potential clinical risk factors inpatients with cerebral hemorrhage and assessed these with respect to APOE genotype. Methoeds: 146 patinas with cerebral hemorrhage and 70 normal controls were investigated. APOE genotypes were determined with use of polymerase Chain reaction techniques.Results: The frequency of allele gene ( 0.180 ) and the percentage of the APOE ε 4 genotype in the cerebral hemorrhage group were Significantly higher as compared with the e 4 prequency ( O.O72 ) in the control group respectively ( p=O.O389 ) .Conelusious: APOE ε 4 :allele is a risk gene for cerebral hemorrhage.

  2. Results of the Danish &apos;&apos;high efficiency motors campaign&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Malmose, K.

    2000-07-01

    In Denmark energy consultancy (demand side management activities (DSM)) took its first steps in the middle of the 80&apos;ies. The energy consultancy was built up around the Danish electric utilities on which the Danish government imposed the implementation of energy savings for funds collected through the electricity bill (approx. 0.0006 DKK/kWh corresponding to approx. 0.001 ECU). The electric utilities trained energy consultants who specialised in visiting industrial enterprises and counselling on energy consumption, primarily focusing on auxiliary systems like lighting, compressed air, ventilation and heating. Within these areas large savings could be obtained because each company was focusing on the actual production but also because the cost of energy was a fraction of the total costs. (orig.)

  3. Stratospheric sulfate from the Gareloi eruption, 1980: Contribution to the &apos;'ambient'&apos; aerosol by a poorly documented volcanic eruption

    Energy Technology Data Exchange (ETDEWEB)

    Sedlacek, W.A.; Mroz, E.J.; Heiken, G.

    1981-07-01

    While sampling stratospheric aerosols during July--August 1980 a plume of &apos;'fresh'&apos; volcanic debris was observed in the Northern hemisphere. The origin of this material seems to be a poorly documented explosive eruption of Gareloi valcano in the Aleutian Islands. The debris was sampled at an altitude of 19.2 km: almost twice the height of observed eruption clouds. Such remote, unobserved or poorly documented eruptions may be a source that helps maintain the &apos;'ambient'&apos; stratospheric aerosol background.

  4. Vertiefungskurs 2014. Safety margins in nuclear power plants. Identify, quantify and extend; Vertiefungskurs 2014 zum Thema &apos;&apos;Sicherheitsmargen in Kernkraftwerken. Identifizieren, quantifizieren, erweitern&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Rey, Matthias

    2015-02-15

    Fifteen speakers dealt with the topic safety margins in nuclear power plants from different points of view at the &apos;&apos;Vertiefungskurs 2014&apos;&apos; of the Nuklearforum Schweiz in Olten, 4 and 5 November 2014. In the context of the &apos;&apos;Vertiefungskurs 2014&apos;&apos; the safety margins in power plants were considered and quantified and possible extensions have been discussed. The conference started with an in-depth introduction of the basis design of existing nuclear power plants. Thereafter speakers told about the main topics emergency preparedness, knowledge management and safety retrofit of nuclear power plants in operation.

  5. EUGRIS: &apos;&apos;European Substainable Land and Groundwater Management Information System&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Frauenstein, J. [Federal Environmental Agency (UBA), Berlin (Germany)

    2003-07-01

    The presentation outlines and Accompanying Measure with the FP 5 to develop an web based EUropean Sustainable Land and GRoundwater Management Information System information system (EUGRIS). The management of contaminated land and groundwater requires an interdisciplinary approach and a considerable amount of supporting technical information and knowledge. EUGRIS will provide a generally available comprehensive and overarching information and innovation resource, to support both research and practical contaminated land and groundwater management. EUGRI is a gateway to provide a &apos;one stop shop&apos; for information provided by research projects, legislation, standards, best practice and other technical guidance and policy/regulatory publications from the EC, participating Member and Accession States and from various international networks dealing with groundwater and land management issues. Different types of user can access information through different windows according to their needs. EUGRIS will provide its visitors with summary information (digests) and links to sources of more detailed and/or original information in a scaleable holistic and contexturally meaningful way. EUGRIS is being built in three stages: the design of the information system, the development of its software implementation, and the population of the system with information. The presentation is focussed on the concept of the development of the information system with the individual work packages. In the second part of the lecture in particular the work procedures are presented for the content wise replenishment by EUGRIS. The data collation for the proven pilot countries and the production of a European research data base, which opens contents and results of European-wide locked and current projects, form the emphasis thereby. (orig.)

  6. &apos;Action 2016&apos;: AREVA&apos;s strategic action plan to improve performance; &apos;Action 2016&apos;: le plan d&apos;actions strategique d&apos;AREVA pour ameliorer sa performance

    Energy Technology Data Exchange (ETDEWEB)

    Marie, Patricia; Floquet-Daubigeon, Fleur; Michaut, Maxime; De Scorbiac, Marie; Du Repaire, Philippine

    2011-12-12

    On December 12, 2011, Luc Oursel, Executive Officer of AREVA, and Pierre Aubouin, Chief Financial Executive Officer, presented the group&apos;s &apos;Action 2016&apos; strategic action plan based on an in-depth analysis of the market&apos;s outlook. This document makes, first, a Detailed presentation of the &apos;Action 2016&apos; plan and then presents the group&apos;s financial outlook: - Full-year 2011 immediate accounting consequences of the new market environment: operating losses expected in 2011; - 2012-2013 transition period Objective: self-finance capex in cumulative terms; - 2014-2016: safe growth and cash generation, free operating cash flow at break-even beginning in 2013, above euro 1 bn per year beginning in 2015

  7. Estimation of doses to patients from &apos;'complex'&apos; conventional X-ray examinations

    Energy Technology Data Exchange (ETDEWEB)

    Calzado, A.; Vano, E.; Moran, P.; Ruiz, S.; Gonzalez, L. (Universidad Complutense de Madrid (Spain). Catedra de Fisica Medica); Castellote, C. (Hospital Militar Central ' ' Gomez Ulla' ' , Madrid (Spain). Dept. de Radiologia)

    1991-06-01

    A numerical method has been developed to estimate organ doses and effective dose-equivalent for patients undergoing three &apos;complex&apos; examinations (barium meal, barium enema and intravenous urography). The separation of radiological procedures into a set of standard numerical views is based on the use of Monte Carlo conversion factors and measurements within a Remab phantom. Radiation doses measured in a phantom for such examinations were compared with predictions of the &apos;'numerical'&apos; method. Dosimetric measurements with thermoluminescent dosemeters attached to the patient&apos;s skin along with measurements of the dose-area product during the examination have enabled the derivation of organ doses and to estimate effective dose-equivalent. Mean frequency weighted values of dose-area product, energy imparted to the patient, doses to a set of organs and effective dose-equivalent in the area of Madrid are reported. Comparisons of results with those from similar surveys in other countries were made. (author).

  8. Documentation to the workshop &apos;Cluster in the environmental protection economy&apos;; Dokumentation zum Workshop &apos;&apos;Cluster in der Umweltschutzwirtschaft&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2009-12-11

    Within the workshop &apos;Cluster in the environmental protection economy&apos; at the Umweltbundesamt (Dessau-Rosslau, Federal Republic of Germany) at 27th November, 2008, the following lectures were held: (a) Which contribution can cluster and cluster politics contribute to the promotion of the environmental protection economy? (Harald Legler); (b) Cluster in the environmental protection economy: Targets and expectations (Dieter Rehfeld); (c) Demands at the management of clusters (Karin Hoerhan); (d) Demands at the cluster politics in the environmental protection economy (Bernhard Hausberg); (e) Photovoltaics in Eastern Germany (Johann Wackenbauer); (f) Automotive industry in Bergisches Land (Thomas Lemken); (g) Competence centre environment Augsburg-Schwaben (Egon Beckord).

  9. ApoE4 induces synaptic and ERG impairments in the retina of young targeted replacement apoE4 mice.

    Directory of Open Access Journals (Sweden)

    Ran Antes

    Full Text Available The vertebrate retina, which is part of the central nervous system, is a window into the brain. The present study investigated the extent to which the retina can be used as a model for studying the pathological effects of apolipoprotein E4 (apoE4, the most prevalent genetic risk factor for Alzheimer's disease (AD. Immunohistochemical studies of retinas from young (4 months old apoE4-targeted replacement mice and from corresponding mice which express the AD benign apoE3 allele, revealed that the density of the perikarya of the different classes of retinal neurons was not affected by apoE4. In contrast, the synaptic density of the retinal synaptic layers, which was assessed immunohistochemically and by immunoblot experiments, was significantly lower in the apoE4 than in the apoE3 mice. This was associated with reduced levels of the presynaptic vesicular glutamatergic transporter, VGluT1, but not of either the GABAergic vesicular transporter, VGaT, or the cholinergic vesicular transporter, VAChT, suggesting that the glutamatergic nerve terminals are preferentially affected by apoE4. In contrast, the post synaptic scaffold proteins PSD-95 and Gephyrin, which reside in excitatory and inhibitory synapses, respectively, were both elevated, and their ratio was not affected by apoE4. Electroretinogram (ERG recordings revealed significant attenuation of mixed rod-cone responses in dark-adapted eyes of apoE4 mice. These findings suggest that the reduced ERG response in the apoE4 mice may be related to the observed decrease in the retinal nerve terminals and that the retina could be used as a novel model for non-invasive monitoring of the effects of apoE4 on the CNS.

  10. Magnetooptical measurements of {beta}&apos;&apos;-(BEDT-TTF)(TCNQ)

    Energy Technology Data Exchange (ETDEWEB)

    Kimata, M.; Oshima, Y.; Ohta, H.; Koyama, K.; Motokawa, M.; Yamamoto, H.M.; Kato, R

    2004-04-30

    Magnetooptical measurements have been performed on {beta}&apos;&apos;-(BEDT-TTF)(TCNQ) using the cavity perturbation techniques. {beta}&apos;&apos;-(BEDT-TTF)(TCNQ) has very exotic Fermi surface (FS). Several harmonic resonances were observed at various angles. We consider these resonances as q1D-periodic orbit resonance. The obtained Fermi velocity and the scattering time are 4.4x10{sup 4} m/s and 2.1x10{sup -11} s, respectively. When the magnetic field was rotated in the b{sup *}a-plane, the similar resonances are observed. According to these results, the FS topology of the system at low temperature is discussed.

  11. SOLAR MAGNETIZED &apos;TORNADOES&apos;: RELATION TO FILAMENTS

    Energy Technology Data Exchange (ETDEWEB)

    Su Yang; Veronig, Astrid; Temmer, Manuela [IGAM-Kanzelhoehe Observatory, Institute of Physics, University of Graz, Universitaetsplatz 5, A-8010 Graz (Austria); Wang Tongjiang [Department of Physics, Catholic University of America, Washington, DC 20064 (United States); Gan Weiqun, E-mail: yang.su@uni-graz.at [Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 (China)

    2012-09-10

    Solar magnetized &apos;tornadoes&apos;, a phenomenon discovered in the solar atmosphere, appear as tornado-like structures in the corona but are rooted in the photosphere. Like other solar phenomena, solar tornadoes are a feature of magnetized plasma and therefore differ distinctly from terrestrial tornadoes. Here we report the first analysis of solar &apos;tornadoes&apos; (two papers which focused on different aspects of solar tornadoes were published in the Astrophysical Journal Letters and Nature, respectively, during the revision of this Letter). A detailed case study of two events indicates that they are rotating vertical magnetic structures probably driven by underlying vortex flows in the photosphere. They usually exist as a group and are related to filaments/prominences, another important solar phenomenon whose formation and eruption are still mysteries. Solar tornadoes may play a distinct role in the supply of mass and twists to filaments. These findings could lead to a new explanation of filament formation and eruption.

  12. Characterisation of epeiric &apos;'layer-cake'&apos; carbonate reservoirs: Upper Muschelkalk (Middle Triassic), the Netherlands

    Energy Technology Data Exchange (ETDEWEB)

    Borkhataria, R.; Aigner, T.; Poeppelreiter, M.C.; Pipping, J.C.P. [Shell International Exploration and Production Inc., Houston, TX (United States)

    2005-04-01

    Upper Muschelkalk (Middle Triassic) carbonates produce natural gas at Coevorden field in the NE Netherlands. This is currently the only field that produces gas from this succession although several other prospects have been identified nearby. In order to help develop these hydrocarbons, this study proposes a facies and reservoir model of the Upper Muschelkalk in the NE Netherlands together with a regional framework intended to assist in further evaluation. Distribution of facies and reservoir properties of the Upper Muschelkalk carbonates in the NE Netherlands indicate deposition on a storm-dominated epeiric ramp with a very low gradient. The predominantly muddy and marly lithofacies types in proximal and distal parts of the ramp gradually interfinger with a shoreline-detached &apos;'shoal'&apos;-like ooidal grainstone complex. The best reservoir quality (permeability up to 60 mD) is recognised within dolomitised peloid ooid grainstones. These are interpreted as high-energy backshoal deposits. Reservoir quality decreases in the limestone-dominated &apos;'shoal'&apos; facies and the muddier foreshoal facies. A four-fold hierarchy of depositional cycles describes the systematic and thus predictable vertical variation in reservoir quality (permeability) and quantity (net-to-gross). High-resolution correlation suggests that medium-scale cycles (5 to 15 metres thick) can be traced for hundreds of kilometres. Small-scale cycles (1 to 3 metres thick) are persistent for several tens of kilometres and have sheet-like geometries. Individual reservoir units (several decimetres thick) appear to be laterally continuous over a maximum of a few kilometres although internal flow barriers might be expected. Mapping of Upper Muschelkalk thickness and facies has clearly defined backshoal, &apos;'shoal'&apos; and foreshoal facies belts with distinctly different reservoir characteristics. Typically, reservoir quality and quantity decrease with increasing

  13. Swiss &apos;Electricity&apos; Research Programme 2004-2007; Konzept des Forschungsprogramms &apos;Elektrizitaet&apos; 2004 - 2007

    Energy Technology Data Exchange (ETDEWEB)

    Brueniger, R.

    2004-07-01

    This report issued by the Swiss Federal Office of Energy (SFOE) provides details on Swiss research in the electricity area that is foreseen for the period 2004-2007. The report discusses the current state of electricity research and the strategic goals for the period and presents the organisations involved and their previous work. The general main areas of interest addressed by the programme are noted, such as the storage and transport of electricity as well as its use in communication technologies, motors, domestic appliances and industrial applications. Figures are presented on the programme&apos;s finances and the concept of &apos;trend-watching&apos; groups is briefly addressed.

  14. Folate targeted polymeric &apos;green&apos; nanotherapy for cancer

    Energy Technology Data Exchange (ETDEWEB)

    Narayanan, Sreeja; Binulal, N S; Mony, Ullas; Manzoor, Koyakutty; Nair, Shantikumar; Menon, Deepthy, E-mail: deepthymenon@aims.amrita.edu [Amrita Center for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi-682 041, Kerala (India)

    2010-07-16

    The concept of &apos;green&apos; chemotherapy by employing targeted nanoparticle mediated delivery to enhance the efficacy of phytomedicines is reported. Poly (lactide-co-glycolide) (PLGA) nanoparticles encapsulating a well known nutraceutical namely, grape seed extract (GSE)-&apos;NanoGSE&apos;-was prepared by a nanoprecipitation technique. The drug-loaded nanoparticles of size {approx} 100 nm exhibited high colloidal stability at physiological pH. Molecular receptor targeting of this nanophytomedicine against folate receptor over-expressing cancers was demonstrated in vitro by conjugation with a potential cancer targeting ligand, folic acid (FA). Fluorescence microscopy and flow cytometry data showed highly specific cellular uptake of FA conjugated NanoGSE on folate receptor positive cancer cells. Studies were also conducted to investigate the efficiency of targeted (FA conjugated) versus non-targeted (non-FA conjugated) nanoformulations in causing cancer cell death. The IC{sub 50} values were lowered by a factor of {approx} 3 for FA-NanoGSE compared to the free drug, indicating substantially enhanced bioavailability to the tumor cells, sparing the normal ones. Receptor targeting of FA-NanoGSE resulted in a significant increase in apoptotic index, which was also quantified by flow cytometry and fluorescence microscopy. This in vitro study provides a basis for the use of nanoparticle mediated delivery of anticancer nutraceuticals to enhance bioavailability and effectively target cancer by a &apos;green&apos; approach.

  15. Reversal of ApoE4-Driven Brain Pathology by Vascular Endothelial Growth Factor Treatment.

    Science.gov (United States)

    Salomon-Zimri, Shiran; Glat, Micaela Johanna; Barhum, Yael; Luz, Ishai; Boehm-Cagan, Anat; Liraz, Ori; Ben-Zur, Tali; Offen, Daniel; Michaelson, Daniel M

    2016-06-30

    Apolipoprotein E4 (ApoE4), the most prevalent genetic risk factor for Alzheimer's disease (AD), is associated with increased neurodegeneration and vascular impairments. Vascular endothelial growth factor (VEGF), originally described as a key angiogenic factor, has recently been shown to play a crucial role in the nervous system. The objective of this research is to examine the role of VEGF in mediating the apoE4-driven pathologies. We show that hippocampal VEGF levels are lower in apoE4 targeted replacement mice compared to the corresponding apoE3 mice. This effect was accompanied by a specific decrease in both VEGF receptor-2 and HIF1-α. We next set to examine whether upregulation of VEGF can reverse apoE4-driven pathologies, namely the accumulation of hyperphosphorylated tau (AT8) and Aβ42, and reduced levels of the pre-synaptic marker, VGluT1, and of the ApoE receptor, ApoER2. This was first performed utilizing intra-hippocampal injection of VEGF-expressing-lentivirus (LV-VEGF). This revealed that LV-VEGF treatment reversed the apoE4-driven cognitive deficits and synaptic pathologies. The levels of Aβ42 and AT8, however, were increased in apoE3 mice, masking any potential effects of this treatment on the apoE4 mice. Follow-up experiments utilizing VEGF-expressing adeno-associated-virus (AAV-VEGF), which expresses VEGF specifically under the GFAP astrocytic promoter, prevented this effects on apoE3 mice, and reversed the apoE4-related increase in Aβ42 and AT8. Taken together, these results suggest that apoE4-driven pathologies are mediated by a VEGF-dependent pathway, resulting in cognitive impairments and brain pathology. These animal model findings suggest that the VEGF system is a promising target for the treatment of apoE4 carriers in AD.

  16. Deep-sea drilling. Practical aspects of 4D seismic: what an engineer needs to know. Developments in Iran: &apos;SIRRI&apos; of the Total company and &apos;DOROOD&apos; of the Elf company. The &apos;DOROOD&apos; operating plan. The &apos;SIRRI&apos; operating plan; Le forage en eau profonde. Aspects pratiques de la sismique 4D: ce qu&apos;un ingenieur doit savoir. Developpements en Iran: &apos;SIRRI&apos; de Total et &apos;DOROOD&apos; d&apos;Elf. Le projet &apos;DOROOD&apos;. Le projet &apos;SIRRI&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Claverie, P. [Schlumberger Sedco Forex, 92 - Montrouge (France); Bauquis, P.R. [Association Francaise des Techniciens et Professionnels du Petrole, AFTP, 92 - Paris-la-Defense (France); Seiller, B.; Geronimi, X. [Elf France, (France); Barthe, D. [Total Fina, 92 - La Defense (France)

    1999-08-01

    In this &apos;Drilling-Production&apos; section, in which 7 papers are gathered, 3 main topics are developed: (1)the deep-sea drilling (2)the practical aspects of 4D seismic (3)the &apos;SIRRI&apos; and &apos;DOROOD&apos; operating plans in Iran. Concerning the first point, it can be noticed that nowadays, mobile platforms are located in great offshore where water depths are of about 2400 m. In the second point is particularly detailed what 4D is, what it can do, what the primary conditions for it works are and how it costs. The third point is the more particularly detailed in this section (15 pages). At first an introduction indicates why Iran has to call to international petroleum investors, what the current problems of Iran are, what Iran has to do to attract foreign investment and technology and what the challenges to foreign companies are. Then the two operating plans: &apos;SIRRI&apos; and &apos;DOROOD&apos; are exposed into details. A synthesis of these plans, called of &apos;Buy Back&apos;, (production, investment, refund) is given as well as their advantages and disadvantages. (O.M.)

  17. Calculation of LDL apoB

    NARCIS (Netherlands)

    Sniderman, A.D.; Tremblay, A.J.; Graaf, J. de; Couture, P.

    2014-01-01

    OBJECTIVES: This study tests the validity of the Hattori formula to calculate LDL apoB based on plasma lipids and total apoB. METHODS: In 2178 patients in a tertiary care lipid clinic, LDL apoB calculated as suggested by Hattori et al. was compared to directly measured LDL apoB isolated by ultracent

  18. &apos;&apos;{sup local}Renewables model communities network&apos;&apos;. An international initiative by ICLEI

    Energy Technology Data Exchange (ETDEWEB)

    Kumar, Emani [ICLEI South Asia Secretariat, Noida (India); Macedo, Laura Valente de [ICLEI Latin America and Caribbean Secretariat, Buenos Aires, DF (Argentina); Staden, Maryke van [ICLEI European Secretariat, Freiburg (Germany)

    2008-07-01

    Local governments (LGs) play a crucial role in implementing local energy policies, ensuring effective regulations, managing assets and providing a wide range of services that impact energy consumption. It is clear that they must also be key players in the transformation to sustainable energy in their communities. The &apos;&apos;{sup local}Renewables Model Communities Network&apos;&apos; (LR), an initiative of ICLEI - Local Governments for Sustainability, to build an international network of communities committed to sustainable energy. The participating cities and towns from developing and developed countries act as role models, and encourage others. LR network communities share information on aspects of sustainable energy, experiences and expertise, from policies to technologies, from stakeholder involvement to implementation processes. LGs around the globe have to become active in the field of sustainable energy. The also require support from various actors, including international cooperation and exchange to support their transition towards sustainable energy solutions. (orig.)

  19. The &apos;Transnuklear affair&apos; and its consequences. Die &apos;Transnuklear-Affaere&apos; und ihre Auswirkungen

    Energy Technology Data Exchange (ETDEWEB)

    Brinkert, M.

    1992-03-01

    The &apos;Bribe&apos; and &apos;Drum&apos; Affairs and suspected proliferation in connection with Transnuklear GmbH public around the turn of 1987/88. Many members of the press wished them to speed up the process of opting out of nuclear power. However, none of the accusations specifically related to nuclear power leveled at that time turned out to be tenable. Instead, all violations of the law which had been detected could have been punished in the same way as in any other branch of industry. As a consequence, the impacts arising to regulatory structures in the nuclear sector, especially the measures taken by the Federal Government, may be considered to have been unjustified in scope. The TN Affair and the associated litigation has caused a great deal of confidence in nuclear power to be lost, which now has to be reclaimed by purposeful public relations efforts. (orig.).

  20. Prospects for neutron star equation of state constraints using &apos;'recycled'&apos; millisecond pulsars

    Energy Technology Data Exchange (ETDEWEB)

    Bogdanov, Slavko [Columbia University, Columbia Astrophysics Laboratory, New York, NY (United States)

    2016-02-15

    &apos;'Recycled'&apos; millisecond pulsars are a variety of rapidly spinning neutron stars that typically show thermal X-ray radiation due to the heated surface of their magnetic polar caps. Detailed numerical modeling of the rotation-induced thermal X-ray pulsations observed from recycled millisecond pulsars, including all relevant relativistic and stellar atmospheric effects, has been identified as a promising approach towards an astrophysical determination of the true neutron star mass-radius relation, and by extension the state of cold matter at densities exceeding those of atomic nuclei. Herein, I review the basic model and methodology commonly used to extract information regarding neutron star structure from the pulsed X-ray radiation observed from millisecond pulsars. I also summarize the results of past X-ray observations of these objects and the prospects for precision neutron star mass-radius measurements with the upcoming Neutron Star Interior Composition Explorer (NICER) X-ray timing mission. (orig.)

  1. The generation and function of soluble apoE receptors in the CNS

    Directory of Open Access Journals (Sweden)

    Rebeck G William

    2006-10-01

    Full Text Available Abstract More than a decade has passed since apolipoprotein E4 (APOE-ε4 was identified as a primary risk factor for Alzheimer 's disease (AD, yet researchers are even now struggling to understand how the apolipoprotein system integrates into the puzzle of AD etiology. The specific pathological actions of apoE4, methods of modulating apolipoprotein E4-associated risk, and possible roles of apoE in normal synaptic function are still being debated. These critical questions will never be fully answered without a complete understanding of the life cycle of the apolipoprotein receptors that mediate the uptake, signaling, and degradation of apoE. The present review will focus on apoE receptors as modulators of apoE actions and, in particular, explore the functions of soluble apoE receptors, a field almost entirely overlooked until now.

  2. Hawai&apos;i&apos;s EVolution: Hawai&apos;i Powered. Technology Driven. (Brochure)

    Energy Technology Data Exchange (ETDEWEB)

    2013-05-01

    This Hawaii Clean Energy Initiative (HCEI) brochure outlines Hawaii&apos;s energy and transportation goals and the implementation of electric vehicles (EV) and electric vehicle infrastructure since HCEI began in 2008. It includes information about Hawaii&apos;s role in leading the nation in available EV charging infrastructure per capita; challenges for continuing to implement EV technology; features on various successful EV users, including the Hawaiian Electric Company, Enterprise Rent-A-Car, and Senator Mike Gabbard; how EVs can integrate into and help propel Hawaii&apos;s evolving smart grid; and much more.

  3. &apos;'Accelerated'&apos; filling of the Inden mine&apos;s residual lake from the Rur river; Die &apos;'beschleunigte'&apos; Befuellung des Tagebaurestsees Inden aus der Rur

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, Andreas [RWE Power AG, Koeln (Germany); Koenzen, Uwe [Planungsbuero Koenzen - Wasser + Landschaft, Hilden (Germany); Lohr, Hubert [SYDRO Consult GmbH, Darmstadt (Germany); Hemmann, Regina; Mueller, Vera [Bezirksregierung Koeln, Koeln (Germany); Lange, Joachim [Wasserverband Eifel-Rur, Dueren (Germany)

    2013-03-01

    The Inden opencast lignite mine is located some 20 km to the north-east of Aachen in Germany&apos;s Rhineland. After the end of lignite mining around the year 2030, a lake measuring some 11.8 km{sup 2} is planned to be created. It will mainly be filled with water from the river Rur flowing past in the immediate vicinity of the opencast mine. Filling the lake volume of some 800 million m{sup 3} will take 20 to 25 years. During the past ten years, the basic water management questions arising in connection with the creation of the In den mine&apos;s residual lake were settled within the scope of the state-planning approval procedure.lt could be demonstrated by means of a numeric river catchment model that the envisaged withdrawal of water from the Rur is feasible and compatible with the water body&apos;s ecological and hydromorphological targets as well as its industrial use. (orig.)

  4. Retro-odontoid &apos;'ghost'&apos; pseudotumours in atlanto-axial instability caused by rheumatoid arthritis

    Energy Technology Data Exchange (ETDEWEB)

    Kenez, J. (Dept. of Neurology, Semmelweis Medical Univ., Budapest (Hungary)); Turoczy, L. (Dept. of Neurosurgery, National Inst. of Traumatology, Budapest (Hungary)); Barsi, P. (Dept. of Neurology, Semmelweis Medical Univ., Budapest (Hungary)); Veres, R. (Dept. of Neurosurgery, National Inst. of Traumatology, Budapest (Hungary))

    1993-05-01

    Among 27 cases of marked atlanto-axial instability investigated in the last 10 years we found three with reducible dislocation, in which a cystic &apos;ghost&apos; pseudo-tumours appeared behind the odontoid, maintaining cord compression even in the reduced position, thus influencing the strategy of operative treatment. The cervical spine and the craniocervical region were examined by conventional tomogrpaphy, myelotomography, CT, CT myelography (following melography), and recently in some cases with MRI. (orig./UWA)

  5. Iran&apos;s &apos;Risk-Taking&apos; in Perspective

    Energy Technology Data Exchange (ETDEWEB)

    Shahram, Chubin

    2008-07-01

    Assessing any state&apos;s intentions is a difficult undertaking - especially at a specific moment in time. When a state is considered hostile, its behaviour erratic, and its system opaque, what is difficult under normal circumstances becomes nearly impossible. It may thus often seem prudent to attribute the worst of intentions to such states, but this can create a self-fulfilling prophecy. Iran with its revolutionary pretensions, fiery rhetoric and nuclear ambitions, is a case in point, since it is particularly difficult to &apos;read&apos;. Located in the centre of a geo-politically sensitive and conflict-driven area, Iran is in a position to influence - positively or otherwise - the Persian Gulf, the Caucasus, the Middle East and South Asia. This influence may furthermore be expanding as a result of the weakening of Iraq and Lebanon, divisions among the Palestinians, and the more general rise of the Shi&apos;i across the broader region. Add to this the ambiguous aims of Iran&apos;s nuclear programme and the shadow this has already thrown across the region, and the need to assess Iran&apos;s intentions accurately appears crucial. Here, Iran&apos;s past behavior may provide some help, especially when it comes to Iran&apos;s proclivity for risk taking - provided the acquisition of a nuclear capability does not alter Iran&apos;s intentions or behavior so as to make the past irrelevant. Some commentators believe that Iran&apos;s ideology and past behaviour suggest that a nuclear-capable Iran will be inclined to take on a high level of risk, without concern for the potential costs of this recklessness, and that Iran may perhaps even welcome the risks involved. By contrast, the recent National Intelligence Estimate (NIE), a composite of US intelligence agency estimates, has concluded that Iran&apos;s &apos;decisions are guided by a cost-benefit approach&apos; and therefore &apos;may be more vulnerable to influence&apos; than they had previously (i.e.2005) judged. These

  6. Altered neurotransmission in the lateral amygdala in aged human apoE4 targeted replacement mice.

    Science.gov (United States)

    Klein, Rebecca C; Acheson, Shawn K; Mace, Brian E; Sullivan, Patrick M; Moore, Scott D

    2014-09-01

    The human APOE4 allele is associated with an early age of onset and increased risk of Alzheimer's disease (AD). Apolipoprotein E is secreted as part of a high-density lipoprotein-like particle by glial cells in the brain for the primary purpose of transport of lipophilic compounds involved in the maintenance of synapses. Previous studies examining synaptic integrity in the amygdala of human apoE targeted replacement (TR) mice showed a decrease in spontaneous excitatory synaptic activity, dendritic arbor, and spine density associated with apoE4 compared with apoE3 and apoE2 in adult male mice. In the present study, we assessed how APOE genotype affects synaptic integrity of amygdala neurons by comparing electrophysiological and morphometric properties in human apoE3, E4, and E2/4 TR mice at the age of 18-20 months. In contrast to adult mice, we found that aged apoE4 TR mice exhibited the highest level of excitatory synaptic activity compared with other cohorts. Additionally, apoE4 mice had significantly greater spontaneous inhibitory activity than all other cohorts. Taken together, there was a significant interaction between genotypes when comparing inhibition relative to excitation; there was a simple main effect of frequency type with an imbalance toward inhibition in apoE4 mice but not in apoE3 or apoE2/4 mice. These results suggest that apoE isoforms differentially influence synaptic transmission throughout the life span, where aging coupled with apoE4 expression, results in an imbalance in maintaining integrity of synaptic transmission.

  7. Impressive Offshore Rig Built &apos;&apos;in the Woods&apos;&apos;. Bentec launched new 2500 hp drilling rig for the Mittelplate field development

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2005-06-01

    In May international rig design and manufacturer Bentec Drilling and Oilfield Systems, a wholly-owned subsidiary of Abbot Group plc, unveiled the new 2500 hp rig T-150 it has been building for the Mittelplate Consortium (RWE Dea AG as operator/Wintershall AG) at Bentec&apos;s manufacturing facility &apos;&apos;in the woods&apos;&apos; of Bad Bentheim, Germany. (orig.)

  8. Why Germany&apos;s &apos;Messy&apos; energy transition should be a lesson to other nations

    Energy Technology Data Exchange (ETDEWEB)

    Shepherd, John [nuclear 24, Brighton (United Kingdom)

    2015-03-15

    Germany&apos;s so-called &apos;&apos;energy transition&apos;&apos; (&apos;'Energiewende'&apos;) is increasingly drawing the intention of the international community - but it seems for all the wrong reasons. US Senator Lamar Alexander said recently that German energy policy is one of the reasons the US should not abandon nuclear, but actually encourage increased investment in nuclear power plants. Alexander&apos;s remarks were made in an article published by the US Nuclear Energy Institute, in which he outlined his reasons why the US should not follow Germany&apos;s lead. Alexander rightly pointed out that the cost of attempting to replace nuclear power with wind, solar, and accompanying infrastructure is estimated by the German government at some 1.2 trillion US dollars (about 1 trillion Euros). The senator also made the point that Germany &apos;&apos;does not produce enough reliable, baseload energy for an important manufacturing economy&apos;&apos;. He also expressed concern at Germany&apos;s reliance on buying natural gas from Russia. While Germany has been forcing the closure of nuclear power plants others, including the oil-rich United Arab Emirates (UAE), have been investing in new nuclear, Alexander said. Judging from Alexander&apos;s remarks, it seems that Germany&apos;s energy transition experience will, after all, have a long-lasting legacy. That legacy will be a valuable lesson to other major industrialised nations in why they should not follow Germany&apos;s lead in abandoning a sensible energy mix, if they wish to maintain and develop economic and industrial productivity while keeping to international commitments to tackle climate change.

  9. 7th CNS int&apos;l steam generators to controls conference - a compliment to the remarkable CNS &apos;OM+DM utility engagement initiative&apos;

    International Nuclear Information System (INIS)

    We learned from CANDU Maintenance-Conference of December 2011, that it is our own &apos;ways-of-working&apos; as service-providers for everything from plant-architecture to operational-support, that is holding back &apos;new-build&apos; as well as &apos;re-build&apos;. CMC2011 addressed that by focusing on &apos;Needs-and-Interests of the Operating-Utilities&apos;. SGC 2012 extends that by focusing firstly on &apos;Issue-Identification&apos; to isolate &apos;items-needing-attention&apos;; then on &apos;Issue-Definition&apos; to define the &apos;work&apos; required for &apos;Issue-Resolution&apos;. It also pursues &apos;Task Leadership&apos; as a competence, essential for ... &apos;making things happen&apos;. These events and the CNS &apos;OM+DM [Operations&Maintenance and Design&Materials Divisions] Utility Engagement Initiative&apos; are seen as complimentary initiatives toward such &apos;ways-of-working-improvement&apos; objectives. (author)

  10. The synchro crusher: a new type of impact?; Le &apos;'synchro-concasseur'&apos;: du nouveau dans l&apos;impact?

    Energy Technology Data Exchange (ETDEWEB)

    Van der Zanden, H.; Valenchon, P.

    1999-10-01

    The seminar organized by &apos;Quarry Management&apos; on the occasion of the Hillhead 99 workshop provided the Dutch company VanderZanden with the opportunity to present its research work on the development of a new concept of crushing called &apos;SynchroCrusher&apos;. Its principle uses the &apos;relative movement&apos; linked with &apos;synchronization&apos;. Each particle is uniformly and precisely crushed by a double impact, the second impact being only generated by the residual (free) energy and occurring at a greater speed. An optimal direct impact is obtained thanks to a perfect control of the impact angle (between 75 and 85 deg.) and of the particle trajectories with no interference between particles. This system allows to reduce both the energy consumption and the wear of crushers. This paper presents the concept of the SynchroCrusher, its comparison with other classical impact crushers and the R and D work carried out to analyze the movement of particles, the capacity of the crusher with respect to the orientation of blades, the directional changes of particles inside the crusher and the synchronization of particle trajectories. (J.S.)

  11. The Effect of a High-Fat Diet on Brain Plasticity, Inflammation and Cognition in Female ApoE4-Knockin and ApoE-Knockout Mice.

    Science.gov (United States)

    Janssen, Carola I F; Jansen, Diane; Mutsaers, Martina P C; Dederen, Pieter J W C; Geenen, Bram; Mulder, Monique T; Kiliaan, Amanda J

    2016-01-01

    Apolipoprotein E4 (ApoE4), one of three common isoforms of ApoE, is a major risk factor for late-onset Alzheimer disease (AD). ApoE-deficient mice, as well as mice expressing human ApoE4, display impaired learning and memory functions and signs of neurodegeneration. Moreover, ApoE protects against high-fat (HF) diet induced neurodegeneration by its role in the maintenance of the integrity of the blood-brain barrier. The influence of a HF diet on the progression of AD-like cognitive and neuropathological changes was assessed in wild-type (WT), human ApoE4 and ApoE-knockout (ApoE-/-) mice to evaluate the modulatory role of ApoE in this process. From 12 months of age, female WT, ApoE4, and ApoE-/- mice were fed either a standard or a HF diet (19% butter, 0.5% cholate, 1.25% cholesterol) throughout life. At 15 months of age mice performed the Morris water maze, evaluating spatial learning and memory. ApoE-/- showed increased spatial learning compared to WT mice (p = 0.009). HF diet improved spatial learning in WT mice (p = 0.045), but did not affect ApoE4 and ApoE-/- mice. Immunohistochemical analyses of the hippocampus demonstrated increased neuroinflammation (CD68) in the cornu ammonis 1 (CA1) region in ApoE4 (p = 0.001) and in ApoE-/- (p = 0.032) mice on standard diet. HF diet tended to increase CD68 in the CA1 in WT mice (p = 0.052), while it decreased in ApoE4 (p = 0.009), but ApoE-/- remained unaffected. A trend towards increased neurogenesis (DCX) was found in both ApoE4 (p = 0.052) and ApoE-/- mice (p = 0.068). In conclusion, these data suggest that HF intake induces different effects in WT mice compared to ApoE4 and ApoE-/- with respect to markers for cognition and neurodegeneration. We propose that HF intake inhibits the compensatory mechanisms of neuroinflammation and neurogenesis in aged female ApoE4 and ApoE-/- mice. PMID:27171180

  12. The Effect of a High-Fat Diet on Brain Plasticity, Inflammation and Cognition in Female ApoE4-Knockin and ApoE-Knockout Mice.

    Directory of Open Access Journals (Sweden)

    Carola I F Janssen

    Full Text Available Apolipoprotein E4 (ApoE4, one of three common isoforms of ApoE, is a major risk factor for late-onset Alzheimer disease (AD. ApoE-deficient mice, as well as mice expressing human ApoE4, display impaired learning and memory functions and signs of neurodegeneration. Moreover, ApoE protects against high-fat (HF diet induced neurodegeneration by its role in the maintenance of the integrity of the blood-brain barrier. The influence of a HF diet on the progression of AD-like cognitive and neuropathological changes was assessed in wild-type (WT, human ApoE4 and ApoE-knockout (ApoE-/- mice to evaluate the modulatory role of ApoE in this process. From 12 months of age, female WT, ApoE4, and ApoE-/- mice were fed either a standard or a HF diet (19% butter, 0.5% cholate, 1.25% cholesterol throughout life. At 15 months of age mice performed the Morris water maze, evaluating spatial learning and memory. ApoE-/- showed increased spatial learning compared to WT mice (p = 0.009. HF diet improved spatial learning in WT mice (p = 0.045, but did not affect ApoE4 and ApoE-/- mice. Immunohistochemical analyses of the hippocampus demonstrated increased neuroinflammation (CD68 in the cornu ammonis 1 (CA1 region in ApoE4 (p = 0.001 and in ApoE-/- (p = 0.032 mice on standard diet. HF diet tended to increase CD68 in the CA1 in WT mice (p = 0.052, while it decreased in ApoE4 (p = 0.009, but ApoE-/- remained unaffected. A trend towards increased neurogenesis (DCX was found in both ApoE4 (p = 0.052 and ApoE-/- mice (p = 0.068. In conclusion, these data suggest that HF intake induces different effects in WT mice compared to ApoE4 and ApoE-/- with respect to markers for cognition and neurodegeneration. We propose that HF intake inhibits the compensatory mechanisms of neuroinflammation and neurogenesis in aged female ApoE4 and ApoE-/- mice.

  13. The &apos;night sensitive&apos; vehicle; Das &apos;nachtsensitive&apos; Fahrzeug

    Energy Technology Data Exchange (ETDEWEB)

    Egelhaaf, J.C.; Knoll, P.M. [Robert Bosch GmbH, Leonberg (Germany)

    2003-07-01

    Driver assistance systems help to reduce the number of accidents. In particular, night vision improvement systems can help to come closer to the goal of collision mitigation since 40% of all fatal accidents occur at night while only 20% of traffic happens at night. (Situation in Germany). Besides weather condition, limited vision at night is mainly caused by the light of oncoming vehicles. To overcome this problem, different developments have been made and are going on. Decades ago, an approach using polarized light has been tested but was not pursued longer due to the huge losses of light caused by the polarizers. Adaptive curve light has been introduced in the 1960&apos;s and intelligent headlight systems, adapting the beams of the headlights to specific traffic situations, are under development. A FIR based night vision improvement system is offered as an option in Cadillac cars, and has good market acceptance. The sensor detects the Far Infrared radiation of objects in front of the vehicle and shows them as a Video picture projected on the windscreen with a HUD. At Robert Bosch a NIR based system is currently under development. It uses Near Infrared radiation from the modified halogen headlight. The picture is detected with a Video camera with an imager with high dynamic range, being currently under development. The range of the system is in the range beyond 100 m at good sight (no fog or heavy rain). The advantage of this combination is on the one hand a better performance compared to the FIR system because road limit lines are seen clearly at a wide range and thus a differentiation of objects within or outside the lane can be made. On the other hand the video camera being used for night vision improvement purposes can be used during day time as well, and has a high potential for other vision based safety and comfort functions like lane departure warning (day and night), ACC Stop and Go and others. (orig.)

  14. A Survey of Open Clusters in the u&apos;g'r'i'z&apos; Filter System. 3. Results for the Cluster NGC 188

    Energy Technology Data Exchange (ETDEWEB)

    Fornal, Bartosz; Tucker, Douglas L.; Smith, J.Allyn; Allam, Sahar S.; Rider, Cristin J.; Sung, Hwankyung; /Jagiellonian U. /Fermilab /Austin Peay State U. /Wyoming U. /Johns Hopkins U. /Sejong U.

    2006-11-01

    The authors continue the series of papers describing the results of a photometric survey of open star clusters, primarily in the southern hemisphere, taken in the u&apos;g'r'i'z&apos; filter system. The entire observed sample covered more than 100 clusters, but here they present data only on NGC 188, which is one of the oldest open clusters known in the Milky Way. They fit the Padova theoretical isochrones to the data. Assuming a solar metallicity for NGC 188, they find a distance of 1700 {+-} 100 pc, an age of 7.5 {+-} 0.7 Gyr, and a reddening E(B-V) of 0.025 {+-} 0.005. This yields a distance modulus of 11.23 {+-} 0.14.

  15. The state and means for developing efforts to regulate drilling mud types at the &apos;'Permneft''&apos; union

    Energy Technology Data Exchange (ETDEWEB)

    Krysin, N.I.; Minaeva, R.M.; Sukhikh, U.M.

    1979-01-01

    Service water has been most widely used as a drilling mud at the &apos;'Permneft''&apos; union. Emulsion mud and emulsion mud-carbonated drilling mud are also widely used. In unstable rock areas, flushing is conducted using calcium chloride mud drilling solutions and mud drilling solutions with natural subsalt mineralization. The use of various types of drilling muds is analyzed. The following were the primary indicators in the analysis: the specific weight of the expenditures on drilling solution materials in the overall cost of borehole construction and the expenses on materials for 1 meter of drilling. The types of drilling solutions recommended for use in different fields in specific geological conditions are determined. The drilling solution standards are compared based on the results of an analysis and the reference materials of the All-Union Scientific Research Institute on Comprehensive Oil Solutions. An examination proceedure is described, together with the regulation acceptances and directions for improving them.

  16. The effects of the apoE4 genotype on the developing mouse retina.

    Science.gov (United States)

    Maharshak, Idit; Salomon-Zimri, Shiran; Antes, Ran; Liraz, Ori; Nisgav, Yael; Livnat, Tami; Weinberger, Dov; Colton, Carol A; Solomon, Arieh S; Michaelson, Daniel M

    2016-04-01

    Apolipoprotein E4 (apoE4), the most prevalent genetic risk factor for Alzheimer's disease (AD), is associated with neuronal and vascular impairments. The retina, which is as an extension of the central nervous system (CNS), is a particularly suitable model for studying developmental and functional aspects of the neuronal and vascular systems. This study investigates the apoE4-dependent developmental effects on the retinal vasculature and neuronal systems and on the levels of apoE and the vascular endothelial growth factor (VEGF) in the retina. This was performed utilizing retinas of 4, 7, 12, and of 120-day-old human-apoE4-targeted replacement mice and of corresponding mice that express the AD benign isoform, apoE3. The results obtained revealed retinal vascular pathology in the apoE4 mice, which started on the early post-natal days. This includes transient increase in vascular branching, and vascular buds which are round vascular elements representing sprouting or retracting vessels. These effects peaked and ended during the neonatal period. Examination of the synaptic system utilizing the pre-synaptic marker synaptophysin revealed a significant decrease of retinal synaptic density in the apoE4 mice, which was detectable by post-natal day 12 (P12). These morphological changes are associated with neonatal age-dependent elevation in the apoE levels in both apoE3 and apoE4 retinas which is more profound in the apoE4 mice and a corresponding increase in VEGF levels, which is less profound in the apoE4 mice. Additionally, we observed lower levels of retinal VEGF in the apoE4 mice compared to the apoE3 mice retinas on P12. These results show that apoE4 has a transient vascular effect during retinal development that ends in the neonatal period, which is accompanied by a synaptic effect that begins at the end of the neonatal period. These findings show that the apoE4 genotype can have distinct developmental effects on both the retinal vasculature and on neurons and

  17. ApoE4-specific Misfolded Intermediate Identified by Molecular Dynamics Simulations.

    Directory of Open Access Journals (Sweden)

    Benfeard Williams

    2015-10-01

    Full Text Available The increased risk of developing Alzheimer's disease (AD is associated with the APOE gene, which encodes for three variants of Apolipoprotein E, namely E2, E3, E4, differing only by two amino acids at positions 112 and 158. ApoE4 is known to be the strongest risk factor for AD onset, while ApoE3 and ApoE2 are considered to be the AD-neutral and AD-protective isoforms, respectively. It has been hypothesized that the ApoE isoforms may contribute to the development of AD by modifying the homeostasis of ApoE physiological partners and AD-related proteins in an isoform-specific fashion. Here we find that, despite the high sequence similarity among the three ApoE variants, only ApoE4 exhibits a misfolded intermediate state characterized by isoform-specific domain-domain interactions in molecular dynamics simulations. The existence of an ApoE4-specific intermediate state can contribute to the onset of AD by altering multiple cellular pathways involved in ApoE-dependent lipid transport efficiency or in AD-related protein aggregation and clearance. We present what we believe to be the first structural model of an ApoE4 misfolded intermediate state, which may serve to elucidate the molecular mechanism underlying the role of ApoE4 in AD pathogenesis. The knowledge of the structure for the ApoE4 folding intermediate provides a new platform for the rational design of alternative therapeutic strategies to fight AD.

  18. ApoE4-specific Misfolded Intermediate Identified by Molecular Dynamics Simulations.

    Science.gov (United States)

    Williams, Benfeard; Convertino, Marino; Das, Jhuma; Dokholyan, Nikolay V

    2015-10-01

    The increased risk of developing Alzheimer's disease (AD) is associated with the APOE gene, which encodes for three variants of Apolipoprotein E, namely E2, E3, E4, differing only by two amino acids at positions 112 and 158. ApoE4 is known to be the strongest risk factor for AD onset, while ApoE3 and ApoE2 are considered to be the AD-neutral and AD-protective isoforms, respectively. It has been hypothesized that the ApoE isoforms may contribute to the development of AD by modifying the homeostasis of ApoE physiological partners and AD-related proteins in an isoform-specific fashion. Here we find that, despite the high sequence similarity among the three ApoE variants, only ApoE4 exhibits a misfolded intermediate state characterized by isoform-specific domain-domain interactions in molecular dynamics simulations. The existence of an ApoE4-specific intermediate state can contribute to the onset of AD by altering multiple cellular pathways involved in ApoE-dependent lipid transport efficiency or in AD-related protein aggregation and clearance. We present what we believe to be the first structural model of an ApoE4 misfolded intermediate state, which may serve to elucidate the molecular mechanism underlying the role of ApoE4 in AD pathogenesis. The knowledge of the structure for the ApoE4 folding intermediate provides a new platform for the rational design of alternative therapeutic strategies to fight AD.

  19. Reflection group on &apos;Expert Culture&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Eggermont, G

    2000-07-01

    As part of SCK-CEN&apos;s social sciences and humanities programme, a reflection group on &apos;Expert Culture&apos; was established. The objectives of the reflection group are: (1) to clarify the role of SCK-CEN experts; (2) to clarify the new role of expertise in the evolving context of risk society; (3) to confront external views and internal SCK-CEN experiences on expert culture; (4) to improve trust building of experts and credibility of SCK-CEN as a nuclear actor in society; (5) to develop a draft for a deontological code; (6) to integrate the approach in training on assertivity and communication; (7) to create an output for a topical day on the subject of expert culture. The programme, achievements and perspectives of the refection group are summarised.

  20. Outline of year-round ski facility &apos;LALAPORT SKI DOME &apos;SSAWS'&apos;. Lalaport ski dome &apos;SSAWS&apos; no keikaku gaiyo

    Energy Technology Data Exchange (ETDEWEB)

    Kayo, M. (Kajima Corp., Tokyo (Japan)); Suzuki, T. (NKK Corp., Tokyo (Japan))

    1994-03-31

    This paper introduces the world&apos;s first indoor snow-fall type artificial ski facility &apos;SSAWS&apos;. Skiing can be enjoyed throughout a year by virtue of artificial snow making machines. Snow quality control requires that the temperature in the ski slope be kept below the freezing point at all times. Means to achieve the requirement included reducing outer wall load by using heat insulation, recovering waste heat from the ski slope by using heat pipes, preventing cold air from leaking and outside air from entering, and adopting a cogeneration system. The cold heat source is a warm water absorbing freezer utilizing waste heat from a gas engine for the cogeneration. The cogeneration system has saved more than 60% of the air conditioning and hot water supplying energy, reducing the annual expense by 15%. The snow making system has a nozzle jet out very highly homogeneous and microfine water droplets with compressed air, and freeze them at -5[degree]C utilizing adiabatic expansion into snow to fall on the slope. The system can control the snow quality as required. The floor of the ski slope is in contact with atmosphere, where snow melting progresses from the lower part as a result of temperature gradient. Therefore, neither special heat source is required, nor a work to scrape and remove the snow that has been stained. 4 refs., 11 figs.

  1. The role of APOE in cerebrovascular dysfunction.

    Science.gov (United States)

    Tai, Leon M; Thomas, Riya; Marottoli, Felecia M; Koster, Kevin P; Kanekiyo, Takahisa; Morris, Alan W J; Bu, Guojun

    2016-05-01

    The ε4 allele of the apolipoprotein E gene (APOE4) is associated with cognitive decline during aging, is the greatest genetic risk factor for Alzheimer's disease and has links to other neurodegenerative conditions that affect cognition. Increasing evidence indicates that APOE genotypes differentially modulate the function of the cerebrovasculature (CV), with apoE and its receptors expressed by different cell types at the CV interface (astrocytes, pericytes, smooth muscle cells, brain endothelial cells). However, research on the role of apoE in CV dysfunction has not advanced as quickly as other apoE-modulated pathways. This review will assess what aspects of the CV are modulated by APOE genotypes during aging and under disease states, discuss potential mechanisms, and summarize the therapeutic significance of the topic. We propose that APOE4 induces CV dysfunction through direct signaling at the CV, and indirectly via modulation of peripheral and central pathways. Further, that APOE4 predisposes the CV to damage by, and exacerbates the effects of, additional risk factors (such as sex, hypertension, and diabetes). ApoE4-induced detrimental CV changes include reduced cerebral blood flow (CBF), modified neuron-CBF coupling, increased blood-brain barrier leakiness, cerebral amyloid angiopathy, hemorrhages and disrupted transport of nutrients and toxins. The apoE4-induced detrimental changes may be linked to pericyte migration/activation, astrocyte activation, smooth muscle cell damage, basement membrane degradation and alterations in brain endothelial cells. PMID:26884068

  2. A model for economical integration of &apos;&apos;Green power&apos;&apos; into the grid. VDE-Study &apos;Smart Distribution 2020&apos;; Ein Modell fuer die wirtschaftliche Integration von Oekostrom ins Netz. VDE-Studie &apos;Smart Distribution 2020&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Jopp, Klaus

    2008-07-01

    The model of this study motivates &apos;'green'&apos; power generation due to the demand in the frame of virtual power plants, therefore the connection of green power generators regulated consumers and power storage. Conditions for virtual power plants is an &apos;&apos;Apollo program&apos;&apos; for an armament to the grids by information- and communication technologies as investigation on advanced storage engineering. With special efforts Germany should be able to play a leading role on intelligent grid management, which may be developed as an import hit. (GL)

  3. ApoE Isoform-Dependent Deficits in Extinction of Contextual Fear Conditioning

    OpenAIRE

    Olsen, Reid H. J.; Agam, Mati; Davis, Matthew James; Raber, Jacob

    2012-01-01

    The three major human apoE isoforms (apoE2, apoE3, and apoE4) are encoded by distinct alleles (ε2, ε3, and ε4). Compared to ε3, ε4 is associated with increased risk to develop Alzheimer’s disease (AD), cognitive impairments in Parkinson’s disease (PD), and other conditions. In contrast, a recent study indicated an increased susceptibility to the recurring and re-experiencing symptom cluster of Post Traumatic Stress Disorder (PTSD), as well as related memory impairments, in patients carrying a...

  4. &apos;&apos;Rio+20 on site&apos;&apos;. Communities on their way to sustainability. Examples from Germany; &apos;&apos;Rio+20 vor Ort&apos;&apos;. Kommunen auf dem Weg zur Nachhaltigkeit. Beispiele aus Deutschland

    Energy Technology Data Exchange (ETDEWEB)

    Nolting, Katrin; Goell, Edgar

    2012-03-15

    20 years ago, the international community adopted the concept of &apos;sustainable development&apos; as a model for the 21st century adopted in order to meet the growing challenges facing the mankind. With Agenda 21, the UN presented a global action plan for the implementation of such a sustainable development. This brochure provides an insight into sustainability activities at local level in Germany. It is shown how such activities result in future-oriented and exemplary developments in some areas and selected areas of action.

  5. &apos;Biomoleculas&apos;: cellular metabolism didactic software

    Energy Technology Data Exchange (ETDEWEB)

    Menghi, M L [Chair of Physiology and Biophysics, Facultad de Ingenieria, Universidad Nacional de Entre Rios, CC 57 Suc 3, Parana 3100, Entre Rios (Argentina); Novella, L P [Chair of Physiology and Biophysics, Facultad de Ingenieria, Universidad Nacional de Entre Rios, CC 57 Suc 3, Parana 3100, Entre Rios (Argentina); Siebenlist, M R [Chair of Physiology and Biophysics, Facultad de Ingenieria, Universidad Nacional de Entre Rios, CC 57 Suc 3, Parana 3100, Entre Rios (Argentina)

    2007-11-15

    &apos;Biomoleculas&apos; is a software that deals with topics such as the digestion, cellular metabolism and excretion of nutrients. It is a pleasant, simple and didactic guide, made by and for students. In this program, each biomolecule (carbohydrates, lipids and proteins) is accompanied until its degradation and assimilation by crossing and interrelating the different metabolic channels to finally show the destination of the different metabolites formed and the way in which these are excreted. It is used at present as a teaching-learning process tool by the chair of Physiology and Biophysics at the Facultad de Ingenieria - Universidad Nacional de Entre Rios.

  6. Optimisation of biological reactors using the &apos;biological resonance&apos; phenomenon; Ansatz zur Optimierung biologischer Reinigungsstufen durch das Phaenomen der &apos;&apos;Biologischen Resonanz&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Schmid, A.

    2003-07-01

    The microbial catabolic activity of biological reactors can be increased by up to 75% through external stimulation with intermittent stress loads at intervals of several minutes. Under these process conditions, the &apos;&apos;biological resonance&apos;&apos; phenomenon determines the system and leads to an increased synthesis of enzymes. In addition to computer simulations, experiments with activated sludge were carried out in a 10-litre bioreactor. By modulating the stress intervals, a permanent increase in catabolic activity of about 60% was achieved during these experiments. By relying on the &apos;&apos;biological resonance&apos;&apos; phenomenon, the required reaction volume of biological treatment units can probably be reduced by up to 40%. (orig.)

  7. Cuts in energy and operating cost with the Swiss system &apos;Energie in ARA&apos; - practical experience in Germany; Energie- und Betriebskosteneinsparungen nach dem schweizerischen System &apos;&apos;Energie in ARA&apos;&apos; - Praxiserfahrungen in Deutschland

    Energy Technology Data Exchange (ETDEWEB)

    Christmann, B. [UmBAUwelt Partnerschaft Architekten und Ingenieure, Riedstadt (Germany)

    1999-07-01

    German sewage treatment plants, too, have potential for saving energy cost and cutting down on their operating expenditure. Following the systematy developed by the &apos;Energie in ARA&apos; concept, this potential can be harnessed. (orig.) [German] Potential fuer Energiekosteneinsparungen und dadurch initiierte Betriebskosteneinsparungen ist auch bei deutschen Klaeranlagen vorhanden. Die Systematik &apos;Energie in ARA&apos; kann fuer die Erschliessung der Einsparpotentiale verwendet werden. (orig.)

  8. ApoE mimetic peptide decreases Aβ production in vitro and in vivo

    Directory of Open Access Journals (Sweden)

    Pak Daniel TS

    2010-04-01

    Full Text Available Abstract Background Apolipoprotein E (apoE is postulated to affect brain Aβ levels through multiple mechanisms--by altering amyloid precursor protein (APP processing, Aβ degradation, and Aβ clearance. We previously showed that an apoE-derived peptide containing a double repeat of the receptor-binding region was similarly effective in increasing APP processing in vivo. Here, we further examined whether peptides containing tandem repeats of the apoE receptor-binding region (amino acids 141-149 affected APP trafficking, APP processing, and Aβ production. Results We found that peptides containing a double or triple tandem repeat of the apoE receptor-binding region, LRKLRKRLL, increased cell surface APP and decreased Aβ levels in PS1-overexpressing PS70 cells and in primary neurons. This effect was potentiated by a sequential increase in the number of apoE receptor-binding domain repeats (trimer > dimer > monomer. We previously showed that the apoE dimer increased APP CTF in vivo; to determine whether the dimer also affected secreted APP or Aβ levels, we performed a single hippocampal injection of the apoE dimer in wild-type mice and analyzed its effect on APP processing. We found increased sAPPα and decreased Aβ levels at 24 hrs after treatment, suggesting that the apoE dimer may increase α-secretase cleavage. Conclusions These data suggest that small peptides consisting of tandem repeats of the apoE receptor-binding region are sufficient to alter APP trafficking and processing. The potency of these peptides increased with increasing repeats of the receptor binding domain of apoE. In addition, in vivo administration of the apoE peptide (dimer increased sAPPα and decreased Aβ levels in wild-type mice. Overall, these findings contribute to our understanding of the effects of apoE on APP processing and Aβ production both in vitro and in vivo.

  9. 2001-2003 &apos;&apos;public utility&apos;&apos; contract between the French government and Gaz de France; Contrat de &apos;&apos;service public&apos;&apos; 2001-2003 entre l&apos;etat et Gaz de France

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    The &apos;&apos;public utility&apos;&apos; contract aims at specifying the actions of Gaz de France (GdF), the French gas utility, in terms of national development and public utility presence at the local scale. It extends and completes the &apos;contract of group&apos; established between the government and GdF in the domain of quality of the services offered to clients, development of gas infrastructures and extension of gas supplies, and sustainable development. (J.S.)

  10. OPEC&apos;s strategies

    Energy Technology Data Exchange (ETDEWEB)

    Wirl, Franz [Vienna Univ. (Austria). Faculty of Business, Economics and Statistics

    2012-09-15

    This paper investigates rationale explanations of OPEC&apos;s strategies. Accounting for market characteristics in particular the sluggishness of demand and supply allows to explain price jumps as rational OPEC strategies from a narrow economic perspective (up and down) as well as from political objectives (at least up) due to the political payoff from standing up against the &apos;West&apos;. Although the temptation to accrue this political payoff was and remains high, the narrow economic profit motive coupled with an imperfect cooperation among OPEC members explains past price volatility and high prices much better than the usual reference to political events. A more specific prediction is that OPEC will switch back to setting prices since the current quantity strategy encourages oil importing countries to appropriate rents in particular in connection with the need to mitigate global warming. (orig.)

  11. Vertigo Imaging; Clinical Radiology&apos;

    Directory of Open Access Journals (Sweden)

    Jalal Jalal Shokouhi

    2009-01-01

    Full Text Available   "n- Dizziness that patients complain from are rotational vertigo, sense of instability, ataxia of gait, disturbance of vision, loss of contact with surroundings, nausea, loss of memory, loss of confidence, epileptic convulsion and dizziness that is considered by medical staff are: "n1- Vertigo as a sense of feeling the environment moving when it does not persist in all positions, aggravated by head movement. "n2- Disequilibrium as a feeling of unsteadiness or insecurity without rotation, standing and walking are difficult. "n3- Light headedness as swimming, floating, giddy or swaying sensation in the head or in the room. "nTaking the history from a vertigo patient:* "n            What the patient means by vertigo?- "n- Time of onset "n-Temporal pattern "n-Associated signs and symptoms &apos;&apos; tinnitus, hearing loss, headache, double vision, numbness and difficulty in swallowing &apos;&apos;. "n- Precipitating, aggravating and relieving factors. "n- If episodic: sequence of events, activity at onset, aura, severity and amnesia. "n*Examination of the vertigo patient checking: "nSpontaneous nystagmus, positional nystagmus, optokinetic nystagmus, posture and balance control like romberg&apos;s test, blind walking, untenberger and barany&apos;s test, stimulation of labyrinth, caloric test &apos;&apos; cold, warm water &apos;&apos; and the rotational test. "nEtiology : "n*Spontaneous nystagmus: "nPosture and balance control is positive with nausea , vomiting , sweating and anxiety : harmonic vestibular sy with loss of hearing , tinnitus , vestibular neuronitis , meniere disease and with otologic origin and dysharmmonic vestibular sy , with numbness , double vision , dysarthria in brain stem infarct and with a neurological origin. "nNonspontaneous nystagmus :Posture and balance negative with nausea, vomiting in GI disorders and internal medicine , sweating and trachycardia by chest pain in angina , M.I &apos;&apos; cardiology &apos;&apos

  12. Cash management system &apos;CEREUS-SM&apos;; Supermarket muke kinsen shoriki &apos;CEREUS-SM&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Niizuma, N.; Fukushima, Y.; Kinoshita, S. [Fuji Electric Co. Ltd., Tokyo (Japan)

    2000-03-10

    The adjustment system with change in coin has reduced cashier work in supermarkets, and has spread as the standard peripheral equipment of the point of sales (POS) system. Recently, there have been customer needs for a type with change in bill and coin. Fuji Electric has developed cash management system &apos;CEREUS-SM&apos; which is as small as the current system only with change in coin and can be handled by anyone, including a part-timer or a student worker. (author)

  13. Crisis - Weisskopf&apos;s view

    International Nuclear Information System (INIS)

    &apos;We are facing a crisis, not only in particle physics but in the whole of fundamental science&apos;, said Victor Weisskopf, doyen of quantum physics, during his traditional summer CERN stopover. &apos;Basic science - science for its own sake - and especially high energy physics, is really in danger.&apos; As well as explaining how this has come about, the former CERN Director General (1961-5) proposed action to reverse the trend. Rather than dividing science into the conventional &apos;big&apos; and &apos;small&apos; camps, he slices across another axis. On one hand there is obviously applicable &apos;terrestrial science&apos; - biology, medicine, solid state, much of the nuclear sector, nonlinear behaviour, chaos,....all directly connected with processes that happen on Earth. On the other there is &apos;cosmic science&apos; - astronomy, astrophysics, particle physics and some of the nuclear sector - addressing deeper issues, not attainable naturally on this planet at all, and where applications are less immediately obvious. (This classification is not completely watertight - even cosmic science can, and does, foster immediate spinoff, Weisskopf points out, citing Georges Charpak&apos;s detector work.) Tracing the evolution of science in this century, Weisskopf sees the rapid evolution of American influence in the 1930s as a turning point. Before then, the United States had not been in the front line, and it had been important for US researchers to spend some time in Europe

  14. The role of the &apos;&apos;Neutral Service Provider&apos;&apos; in the liberalised gas market; Die Rolle des &apos;&apos;Neutral Service Provider&apos;&apos; im liberalisierten Erdgasmarkt

    Energy Technology Data Exchange (ETDEWEB)

    Peper, F.; Greverath, I. [Viavera GmbH Dortmund (Germany)

    2002-07-01

    The ongoing liberalisation of European gas markets forces network operators as well as retail companies to implement new processes. This article focuses on the challenges for network operators. In this context the potential for &apos;Neutral Service Providers (NSP)&apos; is discussed. Based on sample TPA processes the interaction between the NSP and the network operator is explored. The authors conclude that for many market participants the outsourcing of TPA processes to a specialized service provider has the potential to deliver significant benefits. (orig.) [German] Die fortschreitende Liberalisierung der europaeischen Erdgasmaerkte stellt die Netz- sowie die Vertriebsgesellschaften vor staendig wachsende Anforderungen. Dabei wird in diesem Artikel der Schwerpunkt auf die Komplexitaet der Aufgaben insbesondere fuer Netzbetreiber gelegt. In diesem Zusammenhang werden die hieraus resultierenden Marktchancen fuer neue Dienstleistungsunternehmen, die sogenannten &apos;Neutral Service Provider&apos; (NSP) eroertert. Anhand eines Prozessbeispiels wird die Interaktion zwischen NSP und den von ihm betreuten Netzbetreibern diskutiert. Die Autoren kommen zu dem Schluss, dass fuer viele Marktteilnehmer die Auslagerung bestimmter Unternehmensaktivitaeten im Zusammenhang mit der Bewaeltigung des Netzzugangs Dritter an einen spezialisierten Dienstleister mit erheblichen Vorteilen verbunden ist. (orig.)

  15. &apos;Blueprint&apos; your pulverizer for improved performance

    Energy Technology Data Exchange (ETDEWEB)

    Storm, R.F. [Storm Technologies Inc. (United States)

    2009-03-15

    Pulverizer throughput is determined by the coal fineness desired for a given coal. However, compromising on coal fineness when your pulverizer isn&apos;t up to scratch can increase NOx and cause many furnace problems. Your least costly option for increasing pulverizer capacity is to pay careful attention to key dimensions and critical tolerances during your next overhaul. 11 figs.

  16. Scenarios for the popular initiatives &apos;Strom ohne Atom&apos; (Electricity without nuclear power) and &apos;Moratorium Plus&apos;; Szenarien zu den Initiativen &apos;Strom ohne Atom&apos; sowie &apos;MoratoriumPlus&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Eckerle, K.; Haker, K.; Hofer, P

    2001-07-01

    This report for the Swiss Federal Office of Energy (SFOE) presents the results of a study made on the possible effects of two Swiss Popular Initiatives which called for the shutdown of nuclear power stations in Switzerland (&apos;Strom ohne Atom&apos;), the restriction of their operating life and the abstention from building new atomic power stations (&apos;Moratorium Plus&apos;). The report examines the energetic and financial consequences of the initiatives. The approaches used for the analysis are described and the energy policy actions required to avoid gaps in the supply of power after the possible closure of the power stations are discussed. Apart from a reference scenario (long-term utilisation of nuclear energy), scenarios for power generation using co-generation are presented. The problems posed by the resulting CO{sub 2} and NO{sub x} emissions are discussed. Further scenarios review the contribution to be made by renewable sources of energy and increasing energy-conservation efforts. The costs of the shutdown of nuclear power stations are discussed and the results of a sensitivity analysis are presented.

  17. Effects of nocturnal aircraft noise on sleep: results from the &apos;&apos;quiet air traffic&apos;&apos; project; Wirkungen des Nachtfluglaerms auf den Schlaf: Ergebnisse aus dem Projekt &apos;&apos;Leiser Flugverkehr&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Samel, A.; Basner, M.; Maass, H.; Mueller, U.; Quehl, J.; Wenzel, J. [Deutsches Zentrum fuer Luft- und Raumfahrt (DLR) in der Helmholtz-Gemeinschaft (HGF), Inst. fuer Luft- und Raumfahrtmedizin, Koeln (Germany)

    2005-07-01

    In 192 sleep-healthy subjects (18 to 65 y) effects of nocturnal aircraft noise on sleep, stress, performance and subjective factors were investigated in 2240 nights under laboratory and field conditions. In the sleep lab, 112 volunteers were subjected to aircraft noise events by varying numbers and noise levels during 9 nights within a period of 13 nights. 16 further subjects served as control group (i.e. without any noise). 64 subjects were studied in the vicinity of Cologne-Bonn airport during 9 nights. Polysomnographical and acoustical recordings, determination of excretion rates of stress hormones from night urines, performance tests and questionnaires were conducted during all days for the assessment of nocturnal aircraft noise effects. By simultaneous recording of electrophysiological and acoustical data the probability of noise induced awakenings was estimated. Performance and most of psychological parameters did not show significant dose-effect relationships, whereas annoyance did. Epinephrine and norepinephrine did not change under aircraft noise, cortisol did change only in the lab. In the lab, a comparison between all noisy nights and noise-free baseline nights exhibited a non-significant 2-min. reduction of sleep and a 4-min. decrease of slow-wave sleep. In the field, awakenings caused by aircraft noise were detected above a threshold of 33 dB(A) &apos;&apos;at the sleeper&apos;s ear&apos;&apos;. All effects were much less pronounced in the field than in the lab. For the first time, precise dose-effect curves between maximum aircraft noise event levels and electrophysiologically detectable awakenings, and a threshold were empirically established. The results of these studies broadens the knowledge on aircraft noise induced sleep disturbances and immediate consequences for the next day. (orig.)

  18. The effects of apoA-I/C-III/A-IV, apoE and apoB polymorphisms on carotid artery intima-media thickness.

    Science.gov (United States)

    Nieminen, Tuomo; Kähönen, Mika; Lehtimäki, Terho

    2006-03-01

    Different apolipoprotein combinations explain most of the functional differences between plasma lipoproteins. This emphasizes the pivotal role of apolipoproteins in the homeostasis and physiological control of lipid metabolism. Genetic polymorphisms of apolipoprotein (apo)A-I/C-III/A-IV, apoE and apoB have been suggested to modulate plasma lipid levels as well as the risk of coronary artery disease and stroke. Carotid artery intima-media thickness has been shown to represent preclinical atherosclerosis and has, therefore, been used as a surrogate in quantifying the early stages of atherosclerosis. The effects of the polymorphisms in apoA-I/C-III/A-IV and apoB on carotid intima-media thickness are poorly known. The corresponding influence of apoE polymorphisms has been studied more extensively, but the results are not yet conclusive. In this review, these results are presented in detail and the potential reasons and mechanisms for the discrepancies are discussed. PMID:19804074

  19. Conference: &apos;Heating with Wood&apos;. An alternative to fossil fuels? Status and perspectives. Documentation; Tagung: &apos;Heizen mit Holz&apos;. Eine Alternative zur fossilen Energie? Stand der Technik und neue Perspektiven. Dokumentation

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    Main topics of the meeting &apos;&apos;Heating with wood&apos;&apos; were: resource assessment, economical aspects, logistics, cogeneration, district heating, plantation and harvesting of fast growing trees, new heating systems.(uke)

  20. Introducing Human APOE into Aβ Transgenic Mouse Models

    Directory of Open Access Journals (Sweden)

    Leon M. Tai

    2011-01-01

    Full Text Available Apolipoprotein E (apoE and apoE/amyloid-β (Aβ transgenic (Tg mouse models are critical to understanding apoE-isoform effects on Alzheimer's disease risk. Compared to wild type, apoE−/− mice exhibit neuronal deficits, similar to apoE4-Tg compared to apoE3-Tg mice, providing a model for Aβ-independent apoE effects on neurodegeneration. To determine the effects of apoE on Aβ-induced neuropathology, apoE−/− mice were crossed with Aβ-Tg mice, resulting in a significant delay in plaque deposition. Surprisingly, crossing human-apoE-Tg mice with apoE−/−/Aβ-Tg mice further delayed plaque deposition, which eventually developed in apoE4/Aβ-Tg mice prior to apoE3/Aβ-Tg. One approach to address hAPOE-induced temporal delay in Aβ pathology is an additional insult, like head injury. Another is crossing human-apoE-Tg mice with Aβ-Tg mice that have rapid-onset Aβ pathology. For example, because 5xFAD mice develop plaques by 2 months, the prediction is that human-apoE/5xFAD-Tg mice develop plaques around 6 months and 12 months before other human-apoE/Aβ-Tg mice. Thus, tractable models for human-apoE/Aβ-Tg mice continue to evolve.

  1. Solar tank. &apos;Solar ship&apos; and solar development project at Freiburg; Sonne im Tank. &apos;Sonnenschiff&apos; und Solarsiedlung in Freiburg

    Energy Technology Data Exchange (ETDEWEB)

    Alle, N.

    2007-05-15

    In the &apos;Vauban&apos; district of the German city of Freiburg, 59 plusenergy terrace houses and one block of offices and shops were constructed during the past five years. The latter is named &apos;solar ship&apos; and has nine penthouses on its roof which generate more power than they consume. The building is 125 m long and is both a building and a power station. (orig.)

  2. Inorganic profile of some Brazilian medicinal plants obtained from ethanolic extract and &apos;&apos;in natura&apos;&apos; samples

    Energy Technology Data Exchange (ETDEWEB)

    Ferreira, M.O.M.; de Sousa, P.T.; Salvador, V.L.R.; Sato, I.M.

    2004-10-03

    The Anadenathera macrocarpa, Schinus molle, Hymenaea courbaril, Cariniana legalis, Solidago microglossa and Stryphnodendron barbatiman, were collected &apos;&apos;in natura&apos;&apos; samples (leaves, flowers, barks and seeds) from different commercial suppliers. The pharmaco-active compounds in ethanolic extracts had been made by the Mato Grosso Federal University (UFMT). The energy-dispersive x-ray fluorescence (ED-XRF) spectrometry was used for the elemental analysis in different parts of the plants and respective ethanolic extracts. The Ca, Cl, Cu, Fe, K, Mg, Mn, Na, Ni, P, Rb, S, Sr and Zn concentrations were determined by the fundamental parameters method. Some specimens showed a similar inorganic profile for &apos;&apos;in natura&apos;&apos; and ethanolic extract samples and some ones showed a distinct inorganic profile. For example, the Anadenathera macrocarpa showed a similar concentration in Mg, P, Cu, Zn and Rb elements in &apos;&apos;in natura&apos;&apos; and ethanolic extract samples; however very different concentration in Na, S, Cl, K , Ca, Mn, Fe and Sr was observed in distinctive samples. The Solidago microglossa showed the K, Ca, Cl, S, Mg, P and Fe elements as major constituents in both samples, suggesting that the extraction process did not affect in a considerable way the &apos;&apos;in natura&apos;&apos; inorganic composition. The elemental composition of the different parts of the plants (leaves, flowers, barks and seeds) has been also determined. For example, the Schinus molle specimen showed P, K, Cl and Ca elements as major constituents in the seeds, Mg, K and Sr in the barks and Mg, S, Cl and Mn in the leaves, demonstrating a differentiated elementary distribution. These inorganic profiles will contribute to evaluate the quality control of the Brazilian herbaceous trade and also will assist to identify which parts of the medicinal plants has greater therapeutic effect.

  3. Proposal of a simple screening method for a rapid preliminary evaluation of &apos;&apos;heavy metals&apos;&apos; mobility in soils of contaminated sites

    Energy Technology Data Exchange (ETDEWEB)

    Pinto, Valentina; Chiusolo, Francesca; Cremisini, Carlo [ENEA - Italian Agency for New Technologies, Energy and Environment, Rome (Italy). Section PROTCHIM

    2010-09-15

    Risks associated to &apos;&apos;heavy metals&apos;&apos; (HM) soil contamination depend not only on their total content but, mostly, on their mobility. Many extraction procedures have been developed to evaluate HM mobility in contaminated soils, but they are generally time consuming (especially the sequential extraction procedures (SEPs)) and consequently applicable on a limited number of samples. For this reason, a simple screening method, applicable even &apos;&apos;in field&apos;&apos;, has been proposed in order to obtain a rapid evaluation of HM mobility in polluted soils, mainly focused on the fraction associated to Fe and Mn oxide/hydroxides. A buffer solution of trisodium citrate and hydroxylamine hydrochloride was used as extractant for a single-step leaching test. The choice of this buffered solution was strictly related to the possibility of directly determining, via titration with dithizone (DZ), the content of Zn, Cu, Pb and Cd, which are among the most representative contaminants in highly mineralised soils. Moreover, the extraction solution is similar, aside from for the pH value, which is the one used in the BCR SEP second step. The analysis of bivalents ions through DZ titration was exploited in order to further simplify and quicken the whole procedure. The proposed method generically measures, in few minutes, the concentration of total extractable &apos;&apos;heavy metals&apos;&apos; expressed as molL{sup -1} without distinguishing between elements. The proposed screening method has been developed and applied on soil samples collected from rural, urban and mining areas, representing different situation of soil contamination. Results were compared with data obtained from the BCR procedure. The screening method demonstrated to be a reliable tool for a rapid evaluation of metals mobility. Therefore, it could be very useful, even &apos;&apos;in field&apos;&apos;, both to guide the sampling activity on site and to monitor the efficacy of the subsequent

  4. Re-evaluation of the criticality experiments of the &apos;&apos;Otto Hahn Nuclear Ship&apos;&apos; reactor

    Energy Technology Data Exchange (ETDEWEB)

    Lengar, I.; Snoj, L.; Rogan, P.; Ravnik, M. [Jozef Stefan Institute, Ljubljana (Slovenia)

    2008-11-15

    Several series of experiments with a FDR reactor (advanced pressurized light water reactor) were performed in 1972 in the Geesthacht critical facility ANEX. The experiments were performed to test the core prior to its usage for the propulsion of the first German nuclear merchant ship &apos;'Otto-Hahn'&apos;. In the present paper a calculational re-evaluation of the experiments is described with the use of the up-to date computer codes (Monte-Carlo code MCNP5) and nuclear data (ENDF/B-VI release 6). It is focused on the determination of uncertainties in the benchmark model of the experimental set-up, originating mainly from the limited set of information still available about the experiments. Effects of the identified uncertainties on the multiplication factor were studied. The sensitivity studies include parametric variation of material composition and geometry. The combined total uncertainty being found 0.0050 in k{sub eff}, the experiments are qualified as criticality safety benchmark experiments. (orig.)

  5. Final Report on Project 01-ERD-017 &apos;&apos;Smart Nanostructures From Computer Simulations&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Grossman, J C; Williamson, A J

    2004-02-13

    This project had two main objectives. The first major goal was to develop new, powerful computational simulation capabilities. It was important that these tools have the combination of the accuracy needed to describe the quantum mechanical nature of nanoscale systems and the efficiency required to be applied to realistic, experimentally derived materials. The second major goal was to apply these computational methods to calculate and predict the properties of quantum dots--initially composed of silicon, but then of other elements--which could be used to build novel nanotechnology devices. The driving factor of our purpose has been that, through the development and successful application of these tools, we would generate a new capability at LLNL that could be used to make nanostructured materials &apos;'smarter'&apos;, e.g., by selectively predicting how to engineering specific, desired properties. To carry out the necessary work to successfully complete this project and deliver on our goals, we established a two-pronged effort from the beginning: (1) to work on developing new, more efficient algorithms and quantum simulation tools, and (2) to solve problems and make predictions regarding properties of quantum dots which were being studied experimentally here at Livermore.

  6. Aerosol activity distribution on aerodynamic diameter inside the object &apos;'Shelter'&apos;: physical and dosimetric aspects

    Energy Technology Data Exchange (ETDEWEB)

    Bondarenko, O.A.; Aryasov, P.B.; Medvedev, S.Yu.; Nesmiyan, I.M. [Radiation Protection Inst., Kiev (Ukraine); Zhidkov, A.V. [ISTC ' ' Shelter' ' , Chernobyl, Kiev (Ukraine)

    2001-07-01

    Experimental results of the aerosol size distribution inside the Object &apos;'Shelter'&apos; are evaluated in the work. The results show a consistent and significant contribution of sub-micron fraction to the total aerosol activity. Different methods of interpretation of impactor data series are evaluated in terms of adequate assessment of the separate sub-micron aerosol fraction. The contribution of the sub-micron component to the total aerosol activity was found to be about 35%. Results of this research were also compared to those of other authors conducted with by using identical impactor equipment, e.g. results of aerosol sampling at a Czech NPP Dukovany. It is demonstrated in the work that observation of such a significant contribution of the sub-micron fraction for the Shelter aerosol can be hardly explained by systematic failure of the sampling equipment. Also physical mechanisms and corresponding observations of sub-micron aerosol generation inside the Shelter as well as subsequent dosimetric aspects are discussed. (orig.)

  7. &apos;'Green'&apos; Biopolymers for Improved Decontamination of Metals from Surfaces: Sorptive Characterization and Coating Properties

    Energy Technology Data Exchange (ETDEWEB)

    Davison, Brian H.; Kuritz, Tanya

    2000-06-01

    The proposed research aims to develop a fundamental understanding of important biological and physical chemical parameters for effective decontamination of metal surfaces using environmentally benign aqueous-based biopolymer solutions. Understanding how heavy metal-chelating biopolymers coat and interact with contaminated surfaces will benefit the development of novel, safe, easy-to-apply decontamination methodologies for removal of radionuclides and heavy metals. The benefits of these methodologies will include the following: (1) decreased exposure hazards for workers; (2) decreased secondary waste generation; (3) increased efficiency of decontamination; (4) positive public appeal and development of novel, nature-friendly business opportunities; and (5) lower cost of cleanup to the government. We propose to use aqueous biopolymer solutions to coat a contaminated metal surface (i.e., steel), solubilize the heavy metals (e.g., uranium) from the surface, and bind the heavy metals into the biopolymer. The biopolymer coating (containing the immobilized hazardous metal contaminants) will then be removed as a viscous film, as a dry powder, or by washing. This &apos;&apos;apply, wait, and remove&apos;&apos; procedure will reduce the amount of worker time spent in decontamination activities.

  8. &apos;'Green'&apos; Biopolymers for Improved Decontamination of Metals from Surfaces: Sorptive Characterization and Coating Properties

    Energy Technology Data Exchange (ETDEWEB)

    Davison, Brian H.; Kurtiz,Tanya

    1999-06-01

    The proposed research aims to develop a fundamental understanding of important biological and physical chemical parameters for effective decontamination of metal surfaces using environmentally benign aqueous-based biopolymer solutions. Understanding how heavy metal-chelating biopolymers coat and interact with contaminated surfaces will benefit the development of novel, safe, easy-to-apply decontamination methodologies for removal of radionuclides and heavy metals. The benefits of these methodologies will include the following: (1) decreased exposure hazards for workers; (2) decreased secondary waste generation; (3) increased efficiency of decontamination; (4) positive public appeal and development of novel, nature-friendly business opportunities; and (5) lower cost of cleanup to the government. We propose to use aqueous biopolymer solutions to coat a contaminated metal surface (i.e., steel), solubilize the heavy metals (e.g., uranium) from the surface, and bind the heavy metals into the biopolymer. The biopolymer coating (containing the immobilized hazardous metal contaminants) will then be removed as a viscous film, as a dry powder, or by washing. This &apos;&apos;apply, wait, and remove&apos;&apos; procedure will reduce the amount of worker time spent in decontamination activities.

  9. &apos;'Green'&apos; Biopolymers for Improved Decontamination of Metals from Surfaces: Sorptive Characterization and Coating Properties

    Energy Technology Data Exchange (ETDEWEB)

    Davison, Brian H.

    2002-04-30

    The proposed research aimed to develop a fundamental understanding of important biological and physical chemical parameters for effective decontamination of metal surfaces using environmentally benign aqueous-based biopolymer solutions. Understanding how heavy metal-chelating biopolymers coat and interact with contaminated surfaces will benefit the development of novel, safe, easy-to-apply decontamination methodologies for removal of radionuclides and heavy metals. The benefits of these methodologies include the following: decreased exposure hazards for workers; decreased secondary waste generation; increased efficiency of decontamination; positive public appeal and development of novel, nature-friendly business opportunities; and lower cost of cleanup to the government. We proposed to use aqueous biopolymer solutions to coat a contaminated metal surface (i.e., steel), solubilize the heavy metals (e.g., uranium) from the surface, and bind the heavy metals into the biopolymer. The biopolymer coating (containing the immobilized hazardous metal contaminants) was to be removed as a viscous film, as a dry powder, or by washing. This &apos;&apos;apply, wait, and remove&apos;&apos; procedure will reduce the amount of worker time spent in decontamination activities.

  10. Comment on &apos;&apos;Functional integral for Weyl fermions and the effective action&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Banerjee, R.; Banerjee, H.

    1989-02-15

    Baaklini&apos;s method of obtaining the effective action for Weyl fermions is shown to yield either a gauge-invariant or a gauge-variant form depending on the specific definition employed in the analysis. The structures of the effective action proposed by Baaklini are found to correspond to the standard expressions.

  11. Imaging of bridging vein thrombosis in infants with abusive head trauma: the &apos;&apos;Tadpole Sign&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Hahnemann, Maria L.; Kinner, Sonja; Schweiger, Bernd [University Hospital Essen, Institute of Diagnostic and Interventional Radiology and Neuroradiology, Essen (Germany); Bajanowski, Thomas [University Hospital Essen, Institute of Legal Medicine, Essen (Germany); Karger, Bernd; Pfeiffer, Heidi; Wittschieber, Daniel [University Hospital Muenster, Institute of Legal Medicine, Muenster (Germany)

    2014-10-03

    Abusive head trauma (AHT) in infants is usually diagnosed using a multi-disciplinary approach by investigating the circumstances and identifying morphological indicators, for example, subdural hematomas (SDHs), subdural hygromas (SDHys), retinal haemorrhages and encephalopathy. The present morphological study investigates the incidence, radiological characteristics and non-radiological co-factors of bridging vein thrombosis (BVT) in infants with AHT. From 2002 to 2013, computed tomography (CT) and magnetic resonance imaging (MRI) material of 628 infants aged 0-2 years were analysed retrospectively. If available, medicolegal expert opinions were additionally considered. Cases with SDHs and/or SDHys were identified and systematically evaluated as to the presence and characteristics of BVT. SDHs and/or SDHys were present in 29 of the 81 cases exhibiting morphological abnormalities in the initial CT. Among these, 11 cases (40 %) had BVT (mean age = 5.0 months). BVT could be best depicted in the T1-weighted spin echo and T2*/susceptibility-weighted MRI. In one case, BVT could be depicted indirectly using time-of-flight MR venography. The predominant (73 %) BVT shape was found to be tadpole-like (&apos;&apos;Tadpole Sign&apos;&apos;). In the absence of appropriate accidental trauma, BVT appears to be a strong indicator of AHT. Therefore, the BVT/Tadpole Sign represents compelling cause to search for other signs of AHT. (orig.)

  12. Resource consumption of Germany - indicators and definitions. Development of a glossary on the concept of &apos;'resources'&apos; and calculation of missing characteristic data of resources consumption for further political analysis; Ressourcenverbrauch von Deutschland - aktuelle Kennzahlen und Begriffsbestimmungen. Erstellung eines Glossars zum &apos;'Ressourcenbegriff'&apos; und Berechnung von fehlenden Kennzahlen des Ressourcenverbrauchs fuer die weitere politische Analyse

    Energy Technology Data Exchange (ETDEWEB)

    Schuetz, Helmut; Bringezu, Stefan [Wuppertal Institut fuer Klima, Umwelt, Energie GmbH, Wuppertal (Germany). Forschungsgruppe 3: Stoffstroeme und Ressourcenmanagement

    2008-02-15

    The goals of the reported study are: - to prepare a glossary on the term &apos;'Resources'&apos; in order to support communication based on a harmonised resource term and associated terms and - to provide key data on resource use in Germany in time series since 1991 up to the most recent year for which data were available (2004 in general), and to attribute results to the resource terms. Results achieved are presented and discussed below by the following sections: Provision of a glossary on the term &apos;'resource'&apos;, use of the term &apos;'resource'&apos; at different levels, and provision of data and derived indicators for resource consumption in time series. First, a list of the relevant publications in the topic field &apos;'resources'&apos; was provided and co-ordinated with the client. This publication list is given in the annex to this report. On basis of national and international sources a glossary was provided which clearly describes and comments the resource term, its sub-terms and associated terms. This glossary is in the annex to this report. (orig.)

  13. Solar passive building &apos;Working and Living&apos; in Freiburg, Vauban. Final report; Solar-Passivhaus &apos;Wohnen und Arbeiten&apos;, Freiburg, Vauban. Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Wittwer, V.; Voss, K.

    2001-03-30

    Objective of the project: The apartment house called &apos;&apos;living and working&apos;&apos; in the conversion area &apos;'Vauban'&apos; in Freiburg was built with the goal to achieve CO2 -savings of 80% compared to todays standard new buildings regarding heating, warm water and electricity (incl. household appliances). The additional investment costs should not exceed 300 DM per square meter. Presentation of the working steps of the methods applied: Using the subsidies detailed solutions and calculations regarding rentability and costs could be obtained during the planning process. The cost-yield ratio (DM applied/saved primary energy) was determined for all measures planned.This instrument proved to be very useful in making decisions for selecting the measures to be taken. [German] Zielsetzung und Anlass des Vorhabens: Das Mehrfamilienhaus &apos;Wohnen and Arbeiten&apos; im Freiburger Konversionsgebiet &apos;Vauban&apos; entstand mit der Zielrichtung in den Bereichen Heizung, Warmwasser und Elektrizitaet (ink. Haushaltsgeraete) eine CO{sub 2}-Einsparung von 80% gegenueber dem heute ueblichen Neubaustandard zu erreichen. Dabei sollten die investiven Mehrkosten pro Quadratmeter Wohnflaeche nicht mehr als 300 DM betragen. Darstellung der Arbeitsschritte und der angewandten Methoden: Mit Hilfe der Foerdergelder konnten bereits waehrend des Planungsprozesses Detailloesungen, sowie ausfuehrliche Wirtschaftlichkeits- und Kostenbetrachtungen durchgefuehrt werden. Fuer alle geplanten Massnahmen wurde das Kosten-Nutzenverhaeltnis (eingesetzte DM/zu eingesparter Primaerenergie) bestimmt. Dieses Instrument hat sich als Entscheidungshilfe bei der Auswahl der Massnahmen ausserordentlich bewaehrt. (orig.)

  14. Scientists from all over the world attend the &apos;&apos;Frederic Joliot/Otto Hahn Summer School 2009&apos;&apos; at the Karlsruhe Institute of Technology (KIT); Wissenschaftler aus aller Welt bei der &apos;&apos;Frederic Joliot/Otto Hahn Summer School 2009&apos;&apos; am Karlsruhe Institute of Technologie (KIT)

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez Espinoza, Victor Hugo; Fischer, Ulrich [Karlsruhe Inst. of Tech. (KIT), Campus Nord/Inst. for Neutron Physics and Reactor Tech. (INR), Eggenstein-Leopoldshafen (Germany)

    2009-11-15

    The &apos;&apos;Frederic Joliot/Otto Hahn Summer School&apos;&apos; is organized each year alternately by the Karlsruhe Institute of Technology and the Commissariat a l&apos;Energie Atomique (CEA), Cadarache. This year&apos;s Summer School, the 15th since its foundation, was run at the Advanced Training Center (FTU) of KIT Campus Nord on August 26 to September 4. The key topic this year was &apos;&apos;The Challenges in Implementing Fast Reactor Technology.&apos;&apos; These are the items discussed: Principles and challenges of future fast reactor designs, Fuels, fuel cycle, and recycling of minor actinides, Innovative cladding tube and structural materials, Special aspects of coolants and the challenges they pose, Fast reactor safety. Experts from 8 leading international research establishments and universities presented and discussed with the 58 participants from 16 countries the current state of the art and the latest development trends in the topics listed above. (orig.)

  15. Photoluminescence of acupoint &apos;Waiqiu&apos; in human superficial fascia

    Energy Technology Data Exchange (ETDEWEB)

    Zhang Yuan [Synchrotron Radiation Research Center, Department of Physics, Surface Physics Laboratory (State Key Laboratory) of Fudan University, Shanghai 200433 (China); Yan Xiaohui [Synchrotron Radiation Research Center, Department of Physics, Surface Physics Laboratory (State Key Laboratory) of Fudan University, Shanghai 200433 (China); Liu Chenglin [Synchrotron Radiation Research Center, Department of Physics, Surface Physics Laboratory (State Key Laboratory) of Fudan University, Shanghai 200433 (China); Dang Ruishan [Second Military Medical University, Shanghai 200433 (China); Zhang Xinyi [Synchrotron Radiation Research Center, Department of Physics, Surface Physics Laboratory (State Key Laboratory) of Fudan University, Shanghai 200433 (China) and Shanghai Research Center of Acupuncture and Meridian, Pudong, Shanghai 201203 (China)]. E-mail: xy-zhang@fudan.edu.cn

    2006-07-15

    The spectral characters of an acupuncture point named &apos;Waiqiu&apos; in superficial fascia tissue have been studied by photoluminescence (PL) spectroscopy under the excitation of 457.9 nm. The PL around &apos;Waiqiu&apos; acupuncture point consists of two sub-bands resulting from the flavin adenine dinucleotide (FAD) and phospholipids, and the porphyrins (including purine, isoxanthopterin and tryptophan), respectively. More emission due to FAD and phospholipids is found inside the acupuncture effect area of &apos;Waiqiu&apos; than its marginal or outside acupuncture regions. The ratio of emission intensity of FAD and phospholipids to one of porphyrins gradually decreases along the direction away from the center of the acupuncture point. It implies that the component proportion changes between FAD, phospholipids and porphyrins around the &apos;Waiqiu&apos; acupuncture point. We suggest that there might be a certain relationship between redox function of FAD and &apos;Waiqiu&apos; acupuncture effect.

  16. &apos;Minergie&apos; modernisation - Test in practice; Praxistest Minergie-Modernisierung

    Energy Technology Data Exchange (ETDEWEB)

    Ruetter, H.; Ruetter-Fischbacher, U. [Ruetter und Partner, Soziooekonomische Forschung und Beratung, Rueschlikon (Switzerland); Haessig, W. [Haessig Sustech GmbH - Ingenieurbuero fuer Minergie und nachhaltige Gebaeudetechnik, Uster (Switzerland); Jakob, M. [TEP Energy GmbH, CEPE ETH, Zuerich (Switzerland)

    2008-07-01

    This comprehensive report for the Swiss Federal Office of Energy (SFOE) examines the results obtained in practice concerning the use of the &apos;Minergie&apos; low energy consumption standard. Experience gained with &apos;Minergie&apos; refurbishment projects is reviewed and the critical points and constraints found are discussed. Further, recommendations for improvements in the use of the &apos;Minergie&apos; standard are made. The study is based on questions posed to building owners in the German speaking part of Switzerland who have carried out refurbishment projects to meet &apos;Minergie&apos; standards as well as questions posed to those who did not adhere to &apos;Minergie&apos; standards in the refurbishment of their buildings. The reasons quoted for using / not using the standard are listed and discussed. Possible tightening of energy regulations concerning renovation work are discussed. The recommendations resulting from the survey are also noted and discussed.

  17. Behavioral phenotype and BDNF differences related to apoE isoforms and sex in young transgenic mice

    DEFF Research Database (Denmark)

    Reverte, Ingrid; Klein, Anders Bue; Ratner, Cecilia;

    2012-01-01

    , very little information is available on apoE2 genotype. In the present study, we have characterized behavioral and learning phenotypes in young transgenic mice apoE2, apoE3 and apoE4 of both sexes. We have also determined the levels of brain-derived neurotrophic factor (BDNF) and its receptor Trk...... in the exploration of an open-field, which is compatible with a hyperactive behavior, was found in apoE2 females, while a decreased activity was observed in apoE4 mice. Increased BDNF levels in the frontal cortex were observed in apoE2 mice compared to apoE3. These results underscore behavioral differences between...

  18. Evaluatie onderzoeksprogramma&apos;s milieutechnologie vanuit een invalshoek stoffen

    NARCIS (Netherlands)

    Lijzen JPA

    1991-01-01

    This study was carried out to determine the need of a separate programme of the &apos;Regulation for the Advancement of Environmental Technology&apos; (&apos;Sti-MT&apos;) to stimulate technology from a substance point of view. Therefore 6 programms of the &apos;Sti-MT&apos; and 5 other technologic

  19. Reduced hippocampal volume in healthy young ApoE4 carriers: an MRI study.

    Directory of Open Access Journals (Sweden)

    Laurence O'Dwyer

    Full Text Available The E4 allele of the ApoE gene has consistently been shown to be related to an increased risk of Alzheimer's disease (AD. The E4 allele is also associated with functional and structural grey matter (GM changes in healthy young, middle-aged and older subjects. Here, we assess volumes of deep grey matter structures of 22 healthy younger ApoE4 carriers and 22 non-carriers (20-38 years. Volumes of the nucleus accumbens, amygdala, caudate nucleus, hippocampus, pallidum, putamen, thalamus and brain stem were calculated by FMRIB's Integrated Registration and Segmentation Tool (FIRST algorithm. A significant drop in volume was found in the right hippocampus of ApoE4 carriers (ApoE4+ relative to non-carriers (ApoE4-, while there was a borderline significant decrease in the volume of the left hippocampus of ApoE4 carriers. The volumes of no other structures were found to be significantly affected by genotype. Atrophy has been found to be a sensitive marker of neurodegenerative changes, and our results show that within a healthy young population, the presence of the ApoE4+ carrier gene leads to volume reduction in a structure that is vitally important for memory formation. Our results suggest that the hippocampus may be particularly vulnerable to further degeneration in ApoE4 carriers as they enter middle and old age. Although volume reductions were noted bilaterally in the hippocampus, atrophy was more pronounced in the right hippocampus. This finding relates to previous work which has noted a compensatory increase in right hemisphere activity in ApoE4 carriers in response to preclinical declines in memory function. Possession of the ApoE4 allele may lead to greater predilection for right hemisphere atrophy even in healthy young subjects in their twenties.

  20. Environmental education project &apos;Mico-Estrela Track&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Vicente, Ana Paula Camargo de; Magalhaes, Milton Pinto Magalhaes; Silva, Simone Rodrigues da; Pinheiro, Roberta Vieira Nunes; Torres, Carlos Alberto Rodrigues; Silveira, Jeanete [PETROBRAS Transporte S.A. (TRANSPETRO), Rio de Janeiro, RJ (Brazil)

    2009-12-19

    Senador Canedo fuel storage terminal is situated in the Cerrado biome and implements the policy of promoting improvements in the preservation of its Green Belt by working out the Environmental Education Project &apos;Mico-Estrela7 Track&apos;, aimed at stimulating the preservation, protection, landscape beauty and defense of scientific sources of the Cerrado through environmental sensibilization and rational use of the existing natural resources. In the area of the track (1.5 ha) alone 352 plants have been identified, totaling 97 different species that are distributed in 36 families. The implementation of the project will contribute to strengthen the relations with the local community, like dwellers, teachers and pupils of the municipal network of Senador Canedo, as well as co-workers of the unit, thus reaffirming the commitment of the company to socio-environmental responsibility. (author)

  1. Chronic radiation effects on dental hard tissue (&apos;&apos;radiation carries&apos;&apos;). Classification and therapeutic strategies; Chronische Strahlenfolgen an den Zahnhartgeweben (&apos;'Strahlenkaries'&apos;). Klassifikation und Behandlungsansaetze

    Energy Technology Data Exchange (ETDEWEB)

    Groetz, K.A.; Brahm, R.; Al-Nawas, B.; Wagner, W. [Universitaetsklinik und Poliklinik fuer Mund-, Kiefer- und Gesichtschirurgie, Mainz (Germany); Riesenbeck, D.; Willich, N. [Universitaetsklinik und Poliklinik fuer Strahlentherapie -Radioonkologie, Muenster (Germany); Seegenschmiedt, M.H. [Alfried-Krupp-Krankenhaus Essen (Germany). Klinik und Poliklinik fuer Radioonkologie, Strahlentherapie und Nuklearmedizin; Doerr, W. [Technische Univ. Dresden (Germany). Klinik und Poliklinik fuer Strahlentherapie und Radioonkologie; Kutzner, J.; Thelen, M. [Universitaetsklinik und Poliklinik fuer Radiologie/Strahlentherapie, Mainz (Germany)

    2001-02-01

    Objectives: Since the first description of rapid destruction of dental hard tissues following head and neck radiotherapy 80 years ago, &apos;radiation caries&apos; is an established clinical finding. The internationally accepted clinical evaluation score RTOG/EORTC however is lacking a classification of this frequent radiogenic alteration. Material and Methods: Medical records, data and images of radiation effects on the teeth of more than 1,500 patients, who underwent periradiotherapeutic care, were analyzed. Macroscopic alterations regarding the grade of late lesions of tooth crowns were used for a classification into 4 grades according to the RTOG/EORTC guidelines. Results: No early radiation effects were found by macroscopic inspection. In the first 90 days following radiotherapy 1/3 of the patients complained of reversible hypersensitivity, which may be related to a temporary hyperemia of the pulp. It was possible to classify radiation caries as a late radiation effect on a graded scale as known from RTOG/EORTC for other organ systems. This is a prerequisite for the integration of radiation caries into the international nomenclature of the RTOG/EORTC classification. Conclusions: The documentation of early radiation effects on dental hard tissues seems to be neglectable. On the other hand the documentation of late radiation effects has a high clinical impact. The identification of an initial lesion at the high-risk areas of the neck and incisal part of the tooth can lead to a successful therapy as a major prerequisite for orofacial rehabilitation. An internationally standardized documentation is a basis for the evaluation of the side effects of radiooncotic therapy as well as the effectiveness of protective and supportive procedures. (orig.) [German] Fragestellung: Die rasche Zahnhartgewebszerstoerung nach einer Kopf-Hals-Bestrahlung wurde bereits vor fast 80 Jahren als &apos;Strahlenkaries&apos; beschrieben und ist seither als klinischer Befund in der Routine

  2. A cool &apos;win-win&apos; for Matra

    Energy Technology Data Exchange (ETDEWEB)

    Wolff, V. [Alstom, Budapest (Hungary)

    2007-07-15

    In 2004 the Matra plant management initiated a 60 M euro investment programme to increase the generating capacity of units 4 and 5 of the lignite fuelled plant and to give it greater flexibility. This has been achieved by adding a 30 MW natural gas-fired topping gas turbine to each of the 230 MW units, for commissioning by 2007. The power uprate meant the capacity of the dry-tower based cooling system was increased by 24 W for each unit. This has now undergone a major upgrade, involving addition of a wet cooling tower to create a &apos;hybrid&apos; system. It is one of the largest such projects ever carried out, and the first involving a dry-tower cooling system of the Heller type. The result is increased competitiveness and efficiency, with a 250,000 t reduction in annual carbon dioxide emissions. 3 figs.

  3. 7. Duesseldorf Energy Law Conference &apos;&apos;Grid Access Regulation - Preliminary Evaluation&apos;&apos;; 7. Duesseldorfer Energierechtstag &apos;&apos;Netzregulierung - Ein erstes Fazit&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Buedenbender, U. [Technische Univ. Dresden (Germany). Lehrstuhl fuer Buergerliches Recht, Energiewirtschaft und Arbeitsrecht; Rosin, P. [Clifford Chance, Duesseldorf (Germany); Schmidt, M.F. (eds.)

    2007-07-01

    This book contains the papers presented at the 7th Duesseldorf energy law conference on grid access regulation, in which renowned experts of the Bundesnetzagentur, science and industry take stock for the first time of grid access regulation and its effects on the power industry. The focus of the papers is on current court rulings which are viewed from different angles. The issues are discussed both from the view of legal science and from the view of the courts and the parties concerned. The &apos;pilot case&apos; of Vattenfall Europe Transmission GmbH vs. Bundesnetzagentur gets particular attention. A report on the experience with regulation management shows how legal specifications are reflected in the everyday work of grid operators. (orig.)

  4. Putting &apos;international&apos; back in IPEC.

    Energy Technology Data Exchange (ETDEWEB)

    Veil, J. A.

    2000-10-27

    During the previous six annual sessions of the International Petroleum Environmental Conference (IPEC), little attention has been given to international issues. Although the US is clearly a leader in oil field research and regulatory development information is available on interesting projects throughout the world Many participants in IPEC have little exposure to international oil and gas environmental problems and solutions. Beginning with the 7th IPEC, a stronger effort is being made to include international issues in the confidence. This paper describes some of the author&apos;s experiences in working with international oil and gas environmental issues in North America, Latin America, Europe, and Asia. Among the topics to be discussed are the issues that developing oil and gas-producing nations face and the need for sensitivity to other nation&apos;s cultures and legal systems.

  5. Interaction of ApoE3 and ApoE4 isoforms with an ITM2b/BRI2 mutation linked to the Alzheimer disease-like Danish dementia: Effects on learning and memory.

    Science.gov (United States)

    Biundo, Fabrizio; Ishiwari, Keita; Del Prete, Dolores; D'Adamio, Luciano

    2015-12-01

    Mutations in Amyloid β Precursor Protein (APP) and in genes that regulate APP processing--such as PSEN1/2 and ITM2b/BRI2--cause familial dementia, such Familial Alzheimer disease (FAD), Familial Danish (FDD) and British (FBD) dementias. The ApoE gene is the major genetic risk factor for sporadic AD. Three major variants of ApoE exist in humans (ApoE2, ApoE3, and ApoE4), with the ApoE4 allele being strongly associated with AD. ITM2b/BRI2 is also a candidate regulatory node genes predicted to mediate the common patterns of gene expression shared by healthy ApoE4 carriers and late-onset AD patients not carrying ApoE4. This evidence provides a direct link between ITM2b/BRI2 and ApoE4. To test whether ApoE4 and pathogenic ITM2b/BRI2 interact to modulate learning and memory, we crossed a mouse carrying the ITM2b/BRI2 mutations that causes FDD knocked-in the endogenous mouse Itm2b/Bri2 gene (FDDKI mice) with human ApoE3 and ApoE4 targeted replacement mice. The resultant ApoE3, FDDKI/ApoE3, ApoE4, FDDKI/ApoE4 male mice were assessed longitudinally for learning and memory at 4, 6, 12, and 16-17 months of age. The results showed that ApoE4-carrying mice displayed spatial working/short-term memory deficits relative to ApoE3-carrying mice starting in early middle age, while long-term spatial memory of ApoE4 mice was not adversely affected even at 16-17 months, and that the FDD mutation impaired working/short-term spatial memory in ApoE3-carrying mice and produced impaired long-term spatial memory in ApoE4-carrying mice in middle age. The present results suggest that the FDD mutation may differentially affect learning and memory in ApoE4 carriers and non-carriers.

  6. Functional and morphological parameters with tissue characterization of cardiovascular magnetic imaging in clinically verified &apos;&apos;infarct-like myocarditis&apos;&apos;

    International Nuclear Information System (INIS)

    Cardiac magnetic resonance (CMR) has increasingly proved to be a valuable diagnostic tool for evaluating patients with suspected myocarditis. The objective of this study was to evaluate the diagnostic value of functional and morphological parameters including tissue characterization in patients with &apos;&apos;infarct-like myocarditis&apos;&apos;. 43 patients with clinically verified cases of &apos;&apos;infarct-like myocarditis&apos;&apos; (median time to MRI scanning after admission for acute symptoms 3 days) and 35 control patients matched by age and sex were included in this retrospective case control study. In this study we used a 1.5 T MRI scanner conducting steady-state-free-precession sequences, T2-weighted imaging, T1-weighted imaging before and after contrast administration and late gadolinium enhancement sequences. According to the recommendations for CMR diagnosis of myocarditis (Lake Louise consensus criteria), a scan was positive for acute myocarditis if 2 of 3 CMR criteria were present. 30 % of the patients with &apos;&apos;infarct-like myocarditis&apos;&apos; had a reduced left ventricular ejection fraction, 11 % had an increased LV end-diastolic volume index and 35 % had an increased LV mass index. The sensitivity of wall motion abnormalities was 63 % with a regional distribution in 49 %. In 47 % of cases regional wall motion abnormalities were present in the lateral left ventricular segments. Pericardial effusions were discovered in 65 % of cases with a circular appearance in 21 % and focal manifestation in 44 %. The diagnostic sensitivity, specificity, and accuracy of CMR in patients with &apos;&apos;infarct-like myocarditis&apos;&apos; were 67 %, 100 % and 82 %, respectively. The LGE alone was the most sensitive test parameter with 86 %, providing a specificity of 100 % and accuracy of 92 %. Our study results can be applied to the subgroup of patients with &apos;&apos;infarct-like myocarditis&apos;&apos;, where we found that LGE alone was the

  7. Functional and morphological parameters with tissue characterization of cardiovascular magnetic imaging in clinically verified &apos;&apos;infarct-like myocarditis&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Schwab, Johannes [Paracelsus Medical Univ., General Hospital Nuremberg (Germany). Dept. of Cardiology and Radiology; Rogg, H.J.; Pauschinger, M.; Fessele, K. [Paracelsus Medical Univ., General Hospital Nuremberg (Germany). Dept. of Cardiology; Bareiter, T.; Baer, I. [Paracelsus Medical Univ., General Hospital Nuremberg (Germany). Dept. of Cardiology and Neuroradiology; Loose, R. [Paracelsus Medical Univ., General Hospital Nuremberg (Germany). Dept. of Radiology

    2016-04-15

    Cardiac magnetic resonance (CMR) has increasingly proved to be a valuable diagnostic tool for evaluating patients with suspected myocarditis. The objective of this study was to evaluate the diagnostic value of functional and morphological parameters including tissue characterization in patients with &apos;&apos;infarct-like myocarditis&apos;&apos;. 43 patients with clinically verified cases of &apos;&apos;infarct-like myocarditis&apos;&apos; (median time to MRI scanning after admission for acute symptoms 3 days) and 35 control patients matched by age and sex were included in this retrospective case control study. In this study we used a 1.5 T MRI scanner conducting steady-state-free-precession sequences, T2-weighted imaging, T1-weighted imaging before and after contrast administration and late gadolinium enhancement sequences. According to the recommendations for CMR diagnosis of myocarditis (Lake Louise consensus criteria), a scan was positive for acute myocarditis if 2 of 3 CMR criteria were present. 30 % of the patients with &apos;&apos;infarct-like myocarditis&apos;&apos; had a reduced left ventricular ejection fraction, 11 % had an increased LV end-diastolic volume index and 35 % had an increased LV mass index. The sensitivity of wall motion abnormalities was 63 % with a regional distribution in 49 %. In 47 % of cases regional wall motion abnormalities were present in the lateral left ventricular segments. Pericardial effusions were discovered in 65 % of cases with a circular appearance in 21 % and focal manifestation in 44 %. The diagnostic sensitivity, specificity, and accuracy of CMR in patients with &apos;&apos;infarct-like myocarditis&apos;&apos; were 67 %, 100 % and 82 %, respectively. The LGE alone was the most sensitive test parameter with 86 %, providing a specificity of 100 % and accuracy of 92 %. Our study results can be applied to the subgroup of patients with &apos;&apos;infarct-like myocarditis&apos;&apos;, where we found that LGE alone was the

  8. Solar students&apos; hostel at Kaiserslautern

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, W.; Vangerow-Kuehn, A.

    A students&apos; hostel including 30 living units is being built at the University of Kaiserslautern. Together with the department of biology the students of the department of architecture, regional and environmental planning, civil engineering, are planning an &apos;'alternative'&apos; hostel. It is to be constructed on the university campus in self-construction. The passive utilization of solar energy for the conservation of heating costs is focused in the design planning. The hostel shall be roofed with a standard, low-priced greenhouse construction of a prefabrication degree of 100% and including standardized ventilation devices and blinds.

  9. From Higgs to quantum gravity. New particles, exotic numbers, and the &apos;&apos;theory for all&apos;&apos;; Vom Higgs zur Quantengravitation. Neue Teilchen, exotische Zahlen und die &apos;&apos;Theorie fuer alles&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Koenneker, Carsten (comp.)

    2013-11-01

    The following topics are dealt with: The hunting for the quark-gluon plasma, the long way to the Higgs, the LHC after the Higgs, life in the quantum world, Schroedinger&apos;s cat on the test, on the way to quantum gravity, with a computational trick to the comprehensive theory of natural forces, antirealistic maverick, exotic numbers and string theory, physics as a ramshackle tower of Babel. (HSI)

  10. Finishing report for the &apos;SolcelleInverter&apos; project

    Energy Technology Data Exchange (ETDEWEB)

    Boekhoej Kjaer, S.

    2005-03-01

    The main objective for this research project was to develop an inverter for the AC module, where one PV module is equipped with its own dedicated inverter, and connected to the grid. A topology, among many different candidates, has been selected, based on analysis&apos;s. The inverter has been optimized in respect to cost, reliability, and efficiency, and a prototype has been build. (au)

  11. The location selection act or &apos;the Emperor&apos;s new clothes&apos;; Das Standortauswahlgesetz oder &apos;Des Kaisers neue Kleider&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Feldmann, Ulrike

    2013-10-15

    As is generally known, the governing parties CDU/CSU and FDP agreed a few weeks ago in the 17{sup th} legislative period of the German Bundestag in a rare show of unanimity, together with the parties SPD and Buendnis 90/Die Gruenen, as well as with the Laender, on a &apos;law to search and select a location for a permanent disposal site for heat-generating radioactive waste products and to change other laws&apos;, in brief a location selection act also called StandAG. The law was received with animated approval from the ranks of the parties - with the exception of the (left-wing) party Die Linke. This praise is a tad bewildering, since the Bundesumweltministerium (Federal Department of the Environment) named solving the task within a single generation as one of the principles for the StandAG, and it was emphasised again and again in the debates about the StandAG that the problem of permanent disposal must not be shifted to the next generation. Conclusion: - The StandAG leads to a postponement of solving the permanent disposal site issue by a least several generations with its predictable, long-winded selection method. - The decision not to explore Gorleben conclusively could lead to the site being permanently (&apos;wasted&apos; or) &apos;burned&apos;. - The de-central, interim disposal site Gorleben is likewise &apos;burned&apos; without having a resilient alternative solution for the glass coquilles that must be taken back. - The people&apos;s protest is exponentiated by the number of the potential sites for the StandAG. - The costs for the alternative site search will not be shifted to the producers of the waste that are obliged by law to deliver the waste because of the financial provisions of the constitution. - The third party protection dogma has not been broken up, which will at least lead to delays in the procedure and will have effects on other major projects in the long run. (orig.)

  12. Einstein&apos;s quest for unification

    Energy Technology Data Exchange (ETDEWEB)

    Ellis, John [Theory Division at CERN, Geneva (Switzerland)

    2005-01-01

    The last 30 years of his life were spent on a fruitless search for a unified field theory, but as John Ellis explains, Einstein put this &apos;holy grail&apos; of modern physics on the theoretical map. The definitive scientific biography of Einstein, Subtle is the Lord..., which was written by Abraham Pais in 1982, delivered an unequivocal verdict on Einstein&apos;s quest for a unified field theory. Pais wrote that the time for unification had not come, and that Einstein&apos;s work &apos;led to no results of physical interest&apos;. But a lot of water has flowed under the bridge of unification since then, allowing us to look back with perhaps more indulgence as we celebrate the centenary of Einstein&apos;s 1905 papers. (U.K.)

  13. Mothers&apos; Beliefs about Children&apos;s Learning in Hong Kong and the United States: Implications for Mothers&apos; Child-Based Worth

    Science.gov (United States)

    Ng, Florrie Fei-Yin; Pomerantz, Eva M.; Lam, Shui-fong

    2013-01-01

    Chinese and American mothers&apos; beliefs about children&apos;s learning and parents&apos; role in it were examined using notions salient in Chinese culture. Mothers from Hong Kong ("n" = 66) and the United States ("n" = 69) indicated their endorsement of the ideas that children&apos;s learning reflects children&apos;s…

  14. The intern structure of special relativity; La &apos;&apos;structure fine&apos;&apos; de la relativite restreinte

    Energy Technology Data Exchange (ETDEWEB)

    Pierseaux, Y. [Universite Libre de Bruxelles (Belgium)

    1999-07-01

    The author presents the forgotten fact that in 1905 there were 2 restricted theories of relativity: that of Einstein and that of Poincare. These 2 theories were independently formulated, they are very close to each other but are fundamentally different when we consider their basic principles. Poincare&apos;s theory is based on a classical representation of the purely undulatory aspect of light, whereas Einstein stipulates for the quantum aspect of light. Poincare&apos;s theory implies the existence of the ether and asserts the primacy of continuity over discontinuity. The author has based his work on a thorough study of the scientific articles in which Poincare and Einstein explained their ideas. The comparison of these 2 theories sheds light on the evolution of concepts on which the whole modern physics is based. An extended bibliography of works published on special relativity or on related topics is given. (A.C.)

  15. CT angiography helps to differentiate acute from chronic carotid occlusion: the &apos;&apos;carotid ring sign&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Michel, Patrik; Ntaios, George [Centre Hospitalier Universitaire Vaudois and University of Lausanne, Neurology Service, Lausanne (Switzerland); Delgado, Montserrat G. [Hospital Universitario Central de Asturias, Oviedo (Spain); Bezerra, Daniel C. [Johns Hopkins Bloomberg School of Public Health, Department of Epidemiology, Baltimore, MD (United States); Meuli, Reto; Binaghi, Stefano [Centre Hospitalier Universitaire Vaudois and University of Lausanne, Department of Radiology, Lausanne (Switzerland)

    2012-02-15

    Currently, there is no reliable method to differentiate acute from chronic carotid occlusion. We propose a novel CTA-based method to differentiate acute from chronic carotid occlusions that could potentially aid clinical management of patients. We examined 72 patients with 89 spontaneously occluded extracranial internal carotids with CT angiography (CTA). All occlusions were confirmed by another imaging modality and classified as acute (imaging <1 week of presumed occlusion) orchronic (imaging >4 weeks), based on circumstantial clinical and radiological evidence. A neuroradiologist and a neurologist blinded to clinical information determined the site of occlusion on axial sections of CTA. They also looked for (a) hypodensity in the carotid artery (thrombus), (b) contrast within the carotid wall (vasa vasorum), (c) the site of the occluded carotid, and (d) the &apos;&apos;carotid ring sign&apos;&apos; (defined as presence of a and/or b). Of 89 occluded carotids, 24 were excluded because of insufficient circumstantial evidence to determine timing of occlusion, 4 because of insufficient image quality, and 3 because of subacute timing of occlusion. Among the remaining 45 acute and 13 chronic occlusions, inter-rater agreement (kappa) for the site of proximal occlusion was 0.88, 0.45 for distal occlusion, 0.78 for luminal hypodensity, 0.82 for wall contrast, and 0.90 for carotid ring sign. The carotid ring sign had 88.9% sensitivity, 69.2% specificity, and 84.5% accuracy to diagnose acute occlusion. The carotid ring sign helps to differentiate acute from chronic carotid occlusion. If further confirmed, this information may be helpful in studying ischemic symptoms and selecting treatment strategies in patients with carotid occlusions. (orig.)

  16. Development of new VOC exposure metrics and their relationship to &apos;&apos;Sick Building Syndrome&apos;&apos; symptoms

    Energy Technology Data Exchange (ETDEWEB)

    None

    1995-08-01

    Volatile organic compounds (VOCs) are suspected to contribute significantly to &apos;&apos;Sick Building Syndrome&apos;&apos; (SBS), a complex of subchronic symptoms that occurs during and in general decreases away from occupancy of the building in question. A new approach takes into account individual VOC potencies, as well as the highly correlated nature of the complex VOC mixtures found indoors. The new VOC metrics are statistically significant predictors of symptom outcomes from the California Healthy Buildings Study data. Multivariate logistic regression analyses were used to test the hypothesis that a summary measure of the VOC mixture, other risk factors, and covariates for each worker will lead to better prediction of symptom outcome. VOC metrics based on animal irritancy measures and principal component analysis had the most influence in the prediction of eye, dermal, and nasal symptoms. After adjustment, a water-based paints and solvents source was found to be associated with dermal and eye irritation. The more typical VOC exposure metrics used in prior analyses were not useful in symptom prediction in the adjusted model (total VOC (TVOC), or sum of individually identified VOCs ({Sigma}VOC{sub i})). Also not useful were three other VOC metrics that took into account potency, but did not adjust for the highly correlated nature of the data set, or the presence of VOCs that were not measured. High TVOC values (2--7 mg m{sup {minus}3}) due to the presence of liquid-process photocopiers observed in several study spaces significantly influenced symptoms. Analyses without the high TVOC values reduced, but did not eliminate the ability of the VOC exposure metric based on irritancy and principal component analysis to explain symptom outcome.

  17. Depositional &apos;'cyclicity'&apos; on carbonate platforms: Real-world limits on computer-model output

    Energy Technology Data Exchange (ETDEWEB)

    Boss, S.K.; Neumann, A.C. (Univ. of North Carolina, Chapel Hill, NC (United States)); Rasmussen, K.A. (Northern Virginia Community Coll., Annandale, VA (United States))

    1994-03-01

    Computer-models which attempt to define interactions among dynamic parameters believed to influence the development of &apos;'cyclic'&apos; carbonate platform sequences have been popularized over the past few years. These models typically utilize vectors for subsidence (constant) and cyclical (sinusoidal) eustatic sea-level to create accommodation space which is filled by sedimentation (depth-dependent rates) following an appropriate lag time (non-depositional episode during initial platform flooding). Since these models are intended to reflect general principles of cyclic carbonate deposition, it is instructive to test their predictive utility by comparing typical model outputs with an actively evolving depositional cycle on a modern carbonate platform where rates of subsidence, eustatic sea-level and sediment accumulation are known. Holocene carbonate deposits across northern Great Bahama Bank provide such an ideal test-platform for model-data comparisons. On Great Bahama Bank, formation of accommodation space depends on eustatic sea-level rise because tectonic subsidence is very slow. Contrary to typical model input parameters, however, the rate of formation of accommodation space varies irregularly across the bank-top because irregular bank-top topography (produced by subaerial erosion and karstification) results in differential flooding of the platform surface. Results of this comparison indicate that typical computer-model input variables (subsidence, sea-level, sedimentation, lag-time) and output depositional geometries are poorly correlated with real depositional patterns across Great Bahama Bank. Since other modern carbonate platforms and ancient carbonate sequences display similarly complex stratigraphies, it is suggested that present computer-modeling results have little predictive value for stratigraphic interpretation.

  18. IPSN activity report 1999; Rapport d&apos;activite de l&apos;IPSN 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The &apos;&apos;Institut de Protection et de Surete Nucleaire&apos;&apos; (IPSN), carries out researches and expert studies needed to manage nuclear risks and their consequences on people and environment. These activities cover the installation safety, the radioactive matter transport, the public health and environmental control, the nuclear matters safety and control and the crisis situation management. The IPSN have got also a mission of public information and participates to international actions in the domain of scientific researches or expert&apos;s report. This annual report presents the highlights of the year 1999, information on staff, budgets and geographical situation. Then technical and scientific papers gathers the activities of the year covered by the IPSN: the &apos;&apos;Free Tribune&apos;&apos;, installations and radioactive wastes safety, crisis and nuclear matter management, public health and environment control, international cooperation. (A.L.B.)

  19. Scenarios for an integrated sustainability policy - using the example of the &apos;&apos;Sustainable City 2030&apos;&apos;. Vol. 2; Szenarien fuer eine integrierte Nachhaltigkeitspolitik - am Beispiel: Die nachhaltige Stadt 2030. Bd. 2. Teilbericht &apos;&apos;Kreislaufstadt 2030&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Verbuecheln, Maic; Grabow, Busso; Uttke, Angela; Schwausch, Mandy [Deutsches Inst. fuer Urbanistik (DiFu), Berlin (Germany); Gassner, Robert [Institut fuer Zukunftsstudien und Technologiebewertung gGmbH (IZT), Berlin (Germany)

    2013-04-15

    The partial report &apos;&apos;Recycling City 2030&apos;&apos; was prepared for the Federal Environment Agency (Dessau, Federal Republic of Germany) as a part of the project &apos;&apos;Scenarios for an integrated sustainability policy - the example of &apos;The Sustainable City 2030 &apos;'&apos;. This partial report is based on research activities of the German Institute of Urban Affairs (Berlin, Federal Republic of Germany) and Institute for Futures Studies and Technology Assessment (Berlin, Federal Republic of Germany). The objectives of this partial report are: (1) Description of the challenges and trends in urban regions; (2) Recycling city and its importance in the current debate on sustainability; (3) Identification and optimization of existing cycle approaches in urban habitats; (4) Analysis of the actual state as well as designation of developments and constraints; (5) Discussion on the interface between the sectors; (6) Options for action for the interaction between the actors in interdisciplinary topics; (7) Outline of ways and perspectives of the implementation of the &apos;&apos;Recycling City 2030&apos;&apos;.

  20. Formation of helium induced nanostructure &apos;fuzz&apos; on various tungsten grades

    Energy Technology Data Exchange (ETDEWEB)

    Baldwin, M.J., E-mail: mbaldwin@ferp.ucsd.ed [Center for Energy Research and Department of Mechanical and Aerospace Engineering, University of California-San Diego, 9500 Gilman Dr., La Jolla, CA 92093-0417 (United States); Doerner, R.P. [Center for Energy Research and Department of Mechanical and Aerospace Engineering, University of California-San Diego, 9500 Gilman Dr., La Jolla, CA 92093-0417 (United States)

    2010-09-30

    The response of a variety of W material grades to nanostructure &apos;fuzz&apos; formation is explored. W targets are exposed to He or D{sub 2}-0.2He plasmas in PISCES-B at 900-1320 K to below sputter threshold He{sup +} ions of energy 25-60 eV for up to 2.2 x 10{sup 4} s. SEM and XPS reveal nanoscopic reorganization of the W surface to a layer of &apos;fuzz&apos; of porosity {approx}90% as determined by a &apos;fuzz&apos; removal/weight loss method. The variability of &apos;fuzz&apos; growth is examined at 1120 K for 1 h durations: SR, SC and doped W grades - La{sub 2}O{sub 3} (1% wt.), Re (5% and 10% wt.), and TiC (1.5% wt.) developed 2-3 {mu}m thick &apos;fuzz&apos; layers, while a VPS grade developed a layer 4 {mu}m thick. An RC grade revealed additional &apos;fuzz&apos; at deep (>100 {mu}m) grain boundaries. However, heat treatment up to 1900 K produced reintegration of &apos;fuzz&apos; with the bulk and He release at {approx}1000 K and {approx}1400-1800 K due to depopulation from vacancy complexes.

  1. Aids to decision in selection of valve stem seals in accordance with the &apos;&apos;TA Luft&apos;&apos; requirements, 2002 edition; Entscheidungshilfen fuer die Auswahl von Spindelabdichtungen nach TA-Luft-Anforderungen - Ausgabe 2002

    Energy Technology Data Exchange (ETDEWEB)

    Wodara, G. [Phoenix Armaturen Werke Bregel GmbH, Volkmarsen (Germany)

    2005-12-01

    &apos;&apos;TA Luft&apos;&apos; (&apos;&apos;Technical Directive for Prevention of Air Pollution&apos;&apos;), 2002, specifies high-quality-sealing metal bellows with a downstream safety gland, or equivalent sealing systems, for the sealing of valva stems. According to &apos;&apos;TA Luft&apos;&apos;, sealing systems may be considered equivalent provided the temperature-specific rates of leakage are met in the VDI 2440 (November, 2000 edition) test and detection procedure. &apos;&apos;High-quality metal bellows with downstream safety gland&apos;&apos; and various &apos;&apos;spring-load gland packings&apos;&apos; are examined in this article on the criterion of the requirements of &apos;'TA-Luft'&apos;, on the bases of testing in accordance with TA Luft 2002 VDI 2440 and a test in accordance with DIN EN ISO 15 848, Part 1. The result: There is, for the bello with downstream safety gland, no alternative which fulfills all the requirements of &apos;&apos;TA Luft&apos;&apos;. The spring-loaded gland packing and, according to the relevant literature, the double gland packing with barrier fluid and exhausting, which is not examined here, do provide a potential alternative for lower load-cycle numbers. The fact that design specifications and the packing and valve manufacturers&apos; installation instructions were taken into account for valve stem surfaces, gap tolerances, packing-ring arrangement, and tightening torques for precompression and final compression, was decisive for fulfillment of the requirements of TA Luft, VDI 2440 in the tests examined in this article. (orig.)

  2. Know-how management &apos;&apos;Rock mechanics and support methods for the gate roads in the German coal mining industry&apos;&apos;; Wissensmanagement &apos;&apos;Gebirgsmechanik und Ausbautechnik fuer Floezstrecken im deutschen Steinkohlenbergbau

    Energy Technology Data Exchange (ETDEWEB)

    Junker, M. [Deutsche Steinkohle AG, Herne (Germany). Servicebereich Technik und Logistik; Schmidt, R.

    2006-03-23

    The R+D-project for establishment of a database with the entire know-how of the last 30 years from the &apos;&apos;Rock mechanics and support methods for gate roads in the German coal mining industry&apos;&apos; has so far been carried out as planned. After adaptation to the project the selected computer system was introduced. A planning module with recorded operational cases and a structured literature database is thus available to the Competence Centre for Road Supports in the Mining Technology Department of the Technology and Logistics Service Division of DSK. (Orig.)

  3. Reply to &apos;&apos;Comment on &apos;Paramagnetic and ferromagnetic resonance studies on dilute magnetic semiconductors based on GaN&apos; &apos;&apos; [Phys. Status Solidi A 205, 1872 (2008)

    Energy Technology Data Exchange (ETDEWEB)

    Kammermeier, T. [Institut fuer Energie und Umwelttechnik e.V. (IUTA), Luftreinhaltung and Nachhaltige Nanotechnologie Unit, Bliersheimer Strasse 60, 47229 Duisburg (Germany); Fakultaet fuer Physik und CeNIDE, Universitaet Duisburg-Essen, 47057 Duisburg (Germany); Ney, A. [Fakultaet fuer Physik und CeNIDE, Universitaet Duisburg-Essen, 47057 Duisburg (Germany); Wieck, A.D. [Angewandte Festkoerperphysik, Ruhr-Universitaet Bochum, Universitaetsstr. 150, NB Building, 44780 Bochum (Germany)

    2011-08-15

    In a comment by Gehlhoff et al. on our work on &apos;&apos;Paramagnetic and ferromagnetic resonance studies on dilute magnetic semiconductors based on GaN&apos;&apos; [Phys. Status Solidi A 205, 1872 (2008)] the authors claim a contradictory explanation of angular dependent magnetic resonance measurements. Here we discuss their - solely based on computer simulations - claims. We show that an interpretation limited on magnetic impurities can hardly be used to explain the complex magnetic behavior. (Copyright copyright 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

  4. The clock face guide to peroneal intraneural ganglia: critical &apos;'times'&apos; and sites for accurate diagnosis

    Energy Technology Data Exchange (ETDEWEB)

    Spinner, Robert J. [Mayo Clinic, Department of Neurologic Surgery, Rochester, MN (United States); Mayo Clinic, Department of Orthopedics, Rochester, MN (United States); Mayo Clinic, Department of Anatomy, Rochester, MN (United States); Luthra, Gauri [University College Cork, National University of Ireland, Cork (Ireland); Desy, Nicholas M. [McGill University School of Medicine, Department of Orthopedics, Montreal, Quebec (Canada); Anderson, Meredith L. [Mayo Clinic, Department of Radiology, Rochester, MN (United States); Amrami, Kimberly K. [Mayo Clinic, Department of Neurologic Surgery, Rochester, MN (United States); Mayo Clinic, Department of Radiology, Rochester, MN (United States)

    2008-12-15

    The aim of this study is to exploit the normal nature of peroneal nerve anatomy to identify constant magnetic resonance imaging (MRI) patterns in peroneal intraneural ganglia. This study is designed as a retrospective clinical study. MR images of 25 patients with peroneal intraneural ganglia were analyzed and were compared to those of 25 patients with extraneural ganglia and 25 individuals with normal knees. All specimens were interpreted as left-sided. Using conventional axial images, the position of the common peroneal nerve and either intraneural or extraneural cyst was determined relative to the proximal fibula and the superior tibiofibular joint using a symbolic clock face. In all patients, the common peroneal nerve could be seen between the 4 and 5 o&apos;clock position at the mid-portion of the fibular head. In patients with intraneural ganglia, a single axial image could reproducibly and reliably demonstrate both cyst within the common peroneal nerve at the mid-portion of the fibular head (signet ring sign) between 4 and 5 o&apos;clock and within the articular branch at the superior tibiofibular joint connection (tail sign) between 11 and 12 o&apos;clock; in addition, cyst within the transverse limb of the articular branch (transverse limb sign) was seen at the mid-portion of the fibular neck between the 12 and 2 o&apos;clock positions on serial images. Extraneural ganglia typically arose from more superior joint connections with the epicenter of the cyst varying around the entire clock face without a consistent pattern. There was no significant difference between the visual and template assessment of clock face position for all three groups (intraneural, extraneural, and controls). We believe that the normal anatomic and pathologic relationships of the common peroneal nerve in the vicinity of the fibular neck/head region can be established readily and reliably on single axial images. This technique can provide radiologists and surgeons with rapid and

  5. Analysis of &apos;&apos;new physics&apos;&apos; in the flavor sector using effective field theory methods

    Energy Technology Data Exchange (ETDEWEB)

    Dassinger, Benjamin M.

    2010-02-05

    The enormous amount of data collected by the B factories as well as the perspective concerning the upcoming experiments at the LHC provide us with the opportunity to perform high precision tests of the standard model. This dissertation presents two model independent precision tests of the weak sector of the standard model using extensions of the weak currents which are set up using effective field theory methods in order to control the size of the different contributions. Constraints on the coefficients of the terms can then be obtained by comparison with experimental results. The first analysis incorporates a test of the lefthandedness of the weak interaction in the quark sector. By introducing additional weak couplings the differential and total decay rates of the inclusive semileptonic decay anti B {yields} X{sub c}l anti {nu}{sub l} are calculated. The calculation includes the computation of the heavy-quark expansion which describes the interaction of the decaying b quark with respect to the background field of the B meson, up to order 1/m{sub b}{sup 4}. This has been done in a new, systematic way which does not involve the calculation of gluon matrix elements. Furthermore, radiative corrections have been included up to order O({alpha}{sub s}) including renormalization group running. The second part deals with the introduction of lepton flavor violating operators in the context of leptonic {tau} decays. These operators give rise to the effective four-fermion vertex {tau}{yields}ll{sup &apos;}l'&apos; as well as the subsequent radiative decay {tau}{yields}l{gamma}{sup *}{yields}ll{sup &apos;+}l{sup &apos;-}. The resulting Dalitz distributions turn out to predict completely different signatures for the radiative and the effective four-fermion vertices and provide the opportunity to check, whether the decay is induced either by a radiative or by an effective four-fermion vertex. Since different models which contain lepton flavor violation are normally more

  6. Characteristics of radioactive aerosols in 2014 near lavaliked fuel contained materials in premise 012/15 of the &apos;'Ukryttya'&apos; object

    International Nuclear Information System (INIS)

    Composition, concentrations and dispersity of radioactive aerosols in 2014 in premise 012/15 of the &apos;'Ukryttya'&apos; object, were are existed the lavaliked fuel contained materials (LCFM) are presented. The samples were taken on Petryanov&apos;s three-layer filters. At the same time concentrations of radon, thoron and their daughter products were definition with help of the seismic radon station and of radiometer &apos;&apos;Alfarad plus A&apos;&apos;. It was stated that concentration of beta-radiating (Σβ) aerosol-carriers (90Sr+90Y and 137Cs) was fluctuating with the range 0.2 - 3 Bq/m3. Besides, 137Cs share made 30 - 40 %. Ratio of 1&apos;37Cs/241Am concentrations was close to 150. Radionuclide carriers were aerosols with AMAD near 1 μm. Gamma-spectrometric measurements have demonstrated that ratios of radionuclides-products ChNPP Unit 4 accident in aerosol samples and LCFM specimens were characteristically different. It mean that LCFM destruction is altered slightly. Maximum volume activity of radon reached 200 - 300 Bq/m3. 212Pb concentrations - thoron daughter products were fluctuating within the range 0.7 - 33 Bq/m3, and its carriers were the particles of diameter, prevailing, 0.1 - 0.3 μm

  7. U-Pb zircon geochronology of &apos;'brasiliano'&apos; granitoids from the Serido orogenic belt (Borborema Province, NE Brazil). Ages U-Pb sur zircon de granitoides &apos;'brasilianos'&apos; de la ceinture du Serido (Province Borborema, NE Bresil)

    Energy Technology Data Exchange (ETDEWEB)

    Leterrier, J.; Bertrand, J.M. (Centre National de la Recherche Scientifique (CNRS), 54 - Nancy (France). Centre de Recherches Petrographiques et Geochimiques); Pin, C. (Clermont-Ferrand-2 Univ., 63 - Aubiere (France)); Jardim de Sa, E.

    1994-06-01

    Diorites previously attributed to an early stage of the &apos;brasiliano&apos; plutonic evolution of the Serido belt yielded U-Pb zircon age of 579 [+-]7 Ma. The age of associated granites is slightly younger although a synchronous emplacement of granites and diorites is suggested by field relationships. Such an age difference may result from difficulties to distinguish &apos;crystallization age&apos; from &apos;emplacement age&apos;, which is still to be determined precisely. (authors). 16 refs., 3 figs., 1 tab.

  8. Search for B Meson Decays to eta&apos; eta&apos; K

    Energy Technology Data Exchange (ETDEWEB)

    Aubert, B.

    2006-05-05

    The authors describe searches for decays of B mesons to the charmless final states {eta}&apos;{eta}&apos;K. The data consist of 228 million B{bar B} pairs produced in e{sup +}e{sup -} annihilation, collected with the BABAR detector at the Stanford Linear Accelerator Center. The 90% confidence level upper limits for the branching fractions are {Beta}(B{sup 0} {yields} {eta}&apos;{eta}&apos;K{sup 0}) < 31 x 10{sup -6} and {Beta}(B{sup +} {yields} {eta}&apos;{eta}&apos;K{sup +}) < 25 x 10{sup -6}.

  9. The countdown is running. The &apos;Endlagerkommission&apos; on the finishing straight

    International Nuclear Information System (INIS)

    Although the Site Selection Act (&apos;'Standortauswahlgesetz'&apos;) entered into force on 27 July 2013, the Commission on Storage of High-level Waste Materials&apos;&apos; held its inaugural meeting on 22 May 2014. One main task of the Commission is the preparation and submission of a report concerning the main issues for the site selection for a final high-level waste repository. Additionally the proposals should comprise a decision-making tool and recommendations for actions for the Bundestag and Bundesrat. In mid-February 2016 the Commission started to publish some draft parts of the report on the website of the Commission.

  10. PubliForum &apos;Electricity and Society&apos;. Citizen Panel Report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-06-01

    In the Citizen Panel&apos;s Report on &apos;Electricity and Society&apos; we present the first results of three intensive week-ends. In this document, 27 Swiss citizens have recorded their opinions on the future of our electricity supply system. Solutions are sought without making claims on having found the ultimate recipe. The recommendations are the result of an assessment made by a representative cross-section of the public - one could almost say &apos;the voice of the people&apos;. They reflect not only the public&apos;s apprehensions and worries, but also their ideas and desires. (authors)

  11. ANDRA&apos;s news; L&apos;actualite de l&apos;Andra

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    This press kit presents the three missions of the French national agency of radioactive wastes (ANDRA) and the main highlights of these three missions for the second half of 2003: 1 - industrial mission: the very low radioactive waste disposal facility of Morvilliers (543 m{sup 3} of waste packages already stored), the Aube disposal facility (exploitation data), the Manche disposal facility (adaptation to new monitoring standards); 2 - the research mission: the Meuse/Haute-Marne laboratory (progress of works and experimental program), the mobilization of competences (international expertise of ANDRA&apos;s researches about deep underground disposal, the coordination of the European program ESDRED); 3 - the information mission: national inventory of radioactive wastes, publications and events, recall of ANDRA&apos;s missions. (J.S.)

  12. Compressed &apos;energy logs&apos;; Energiatukit tulevat

    Energy Technology Data Exchange (ETDEWEB)

    Fredriksson, T.

    1999-07-01

    In Sweden the utilization of forest fuels exceeds 5 million m{sup 3}/a. Two different solutions have been developed for compacting of the logging residues of final fellings. The operating principles of these methods differ from each other. Both these methods compress logging residues to &apos;energy logs&apos;, which can be processed and transported by ordinary forest machines and lorries, used for harvesting of timber. Fiberpack Ab has developed a machine which can compress logging residues or trees without any larger restrictions for raw material. Long tops and trees under 30 cm diameter can be compressed into cylindrical pieces, the diameter of which are 0.7 m, while the length can be defined freely. However, in practical operation the length is usually 3.2 m which enables in long-distance transportation the full load of a timber-lorry. In principle the Fiberpack can produce as long energy log as the amount of logging residues enable. Transportation defines the length of the log. Fiberpac-unit weights six tons, and the width in operational condition is 5.8 m. The length of the unit is 2.4 m and the height 1.9 m. The operation of the equipment has been reliable. Compacting of the logging residues occurs in three stages. In pre-compassion the residues are compressed between two rollers, in the second stage it is compressed further in square-shaped frame, after which it undergoes final compression and binding. The average weight of the &apos;logs&apos; is 550 kg. A normal timber-trailer takes 65-70 logs. The production of Fiberpac is 15-20 logs per hour. Frozen and snowy raw material is the hardest raw material, but both fresh and dried logging residues can be used for production of logs. The price of one Fiberpac-unit is about 1.4 million SEK. Another alternative is the machine developed by Wood Pac Ab, which resembles a cigarette roller. A medium-sized forest machine is used as the basic machine. The minimum power demand is 120 kW, and the efficiency of the

  13. Measuring Beliefs in Centimeters: Private Knowledge Biases Preschoolers&apos; and Adults&apos; Representation of Others&apos; Beliefs

    Science.gov (United States)

    Sommerville, Jessica A.; Bernstein, Daniel M.; Meltzoff, Andrew N.

    2013-01-01

    A novel task, using a continuous spatial layout, was created to investigate the degree to which (in centimeters) 3-year-old children&apos;s ("N" = 63), 5-year-old children&apos;s ("N" = 60), and adults&apos; ("N" = 60) own privileged knowledge of the location of an object biased their representation of a…

  14. Whose education affects a child&apos;s nutritional status? From parents&apos; to household&apos;s education

    OpenAIRE

    Francesco Burchi

    2012-01-01

    BACKGROUND The paper engages in the ongoing debate regarding the determinants of child nutrition in developing countries and stresses the potential contribution of the education of household members other than the child&apos;s parents. OBJECTIVE The aim of the paper is threefold: (1) to verify whether there is evidence of the key role of parents&apos; education for children&apos;s nutrition; (2) to explore the possible presence of the externalities generated by the literacy of household membe...

  15. OJT. make &apos;em or break &apos;em

    Energy Technology Data Exchange (ETDEWEB)

    Arner, S.A.

    1992-01-01

    On-the-job training (OJT) has been with us in varying forms for longer than perhaps any other type of training. In reality, OJT is a process for accomplishing change; change in an employee&apos;s ability to perform assigned job duties. However, bringing about that change can often be a difficult process. A clear understanding of what change really is and what it entails is essential to easing its process. this document discusses the methodology in OJT and emphasizes the importance of communications in this process.

  16. Dat&apos;a&apos; RTE - &apos; Balance Responsible data &apos; Service. You would like to manage your activities more effectively, and that&apos;s why RTE is offering new services that give you access to personalized data; Dat&apos;a&apos; RTE offre &apos;&apos;donnees de responsable d&apos;equilibre'&apos;. Vous souhaitez mieux piloter vos activites, RTE vous propose un nouveau service de mise a disposition de donnees personnalisees

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-06-01

    RTE, the French manager of the power transportation network, already offers a service under which it publishes public data on its web site ; it aims to improve the way the electricity market works in a transparent and nondiscriminatory fashion. To better respond to the needs of actors in the electricity market, RTE has developed new Dat&apos;a&apos; RTE services, giving them access to detailed, personalized and confidential data. Dat&apos;a&apos; RTE is the main electronic channel used for exchanging personalized data between RTE and customers. The &apos;Balance Responsible Data&apos; service completes and enhances the other services associated with the &apos;Balance Responsible Entity&apos; service. For a detailed picture and greater reactivity, the customers have access to the basic data used to calculate imbalances as soon as they are processed by RTE. They become definitive from the point in time specified in the Balance Responsible Entity contractual documents. The price of this service is dependent upon the size of the customer&apos;s Balance Responsible perimeter.

  17. 3&apos;,8&apos;&apos;-biisokaempferide, a cytotoxic biflavonoid and other chemical constituents of Nanuza plicata (Velloziaceae)

    Energy Technology Data Exchange (ETDEWEB)

    Pinto, Meri Emili F.; Silva, Marcelo Sobral da; Barbosa Filho, Jose Maria; Castello-Branco, Marianna Vieira S.; Agra, Maria de Fatima; Tavares, Josean Fechine, E-mail: marcelosobral@ltf.ufpb.b [Universidade Federal da Paraiba (UFPB), Joao Pessoa, PB (Brazil). Lab. de Tecnologia Farmaceutica; Schindler, Elisabete; El-Bacha, Ramon dos Santos [Universidade Federal da Bahia (UFBA), Salvador, BA (Brazil). Inst. de Ciencias da Saude. Lab. de Neuroquimica e Biologia Celular

    2010-07-01

    A novel biflavonoid, named 3&apos;,8&apos;&apos;-biisokaempferide (1), along with the known compounds amentoflavone (2), patagonic acid (3), (4aR,5S,6R,8aR)-5-[2-(2,5-Dihydro-5-methoxy-2-oxofuran- 3-yl)ethyl]-3,4,4a,5,6,7,8,8a-octahydro-5,6,8a- trimethylnaphthalene-1-carboxylic acid (4), 5-caffeoylquinic acid methyl ester (5), 3,5-di-caffeoylquinic acid (6) and luteolin (7), were isolated of the leaves from Nanuza plicata. The compounds 3, 4, 5 and 6 are reported for the first time in Velloziaceae. The structures of the compounds were elucidated on the basis of spectroscopic methods, especially NMR and MS analyses. The cytotoxicity of 3&apos;,8&apos;&apos;-biisokaempferide was studied in cultures of human glioblastoma GL-15 cells. The effective concentration, which killed 50 % of cells after 72 h was 36.5 {mu}mol L{sup -1}. Changes in cellular morphology, including retraction and degradation of cytoplasm, were observed when cells were treated with concentrations from 20 {mu}mol L-1 of 3&apos;,8&apos;&apos;-biisokaempferide for 72 h. (author)

  18. Innovative casting technology for the manufacture of near-net-shape crankshafts; Innovative giesstechnologische Entwicklungen zur Herstellung von &apos;'Endnah-Guss-Kurbelwellen'&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Heck, K. [Audi AG, Ingolstadt (Germany); Dieterle, U. [Halberg Guss GmbH, Saarbruecken-Brebach (Germany); Kleine, A.; Sahm, P.R. [Technische Hochschule Aachen (Germany). Lehrstuhl fuer das Gesamte Giessereiwesen und Giesserei-Institut

    1999-07-01

    The reported technology solution for manufacturing a near-net-shape crankshaft is the outcome of a cooperation between three project teams of experts in the fields of casting, CNB grinding, and finishing. The casting process for near-net-shape crankshafts, the geometry design, the materials and properties are explained. The entire concept reduces the reuqired work volume by about 25%, and the throuput time by about 30%. (orig./MM) [German] Bedingt durch die Komplexitaet der Kurbelwellenfertigung erfolgte eine Projektorganisation unter Beruecksichtigung des Simultaneous-Engineering, das zu einer engen Zusammenarbeit zwischen den insgesamt drei Projektteams der Bereiche &apos;Giessen&apos;, &apos;CBN-Schleifen&apos; und &apos;Finishen&apos; fuehrte. Konkret erlaubt das als Endnah-Guss-Kurbelwellen-Technologie bezeichnete Loesungskonzept eine Verringerung der Arbeitsvorgaenge um ca. 25% und eine Reduzierung der Durchlaufzeit um ca. 30%. (orig.)

  19. Myonecrosis of Behcet&apos;s disease

    Energy Technology Data Exchange (ETDEWEB)

    Stubbs, Alana Y. [Southern Arizona Veterans Administration Health Care System, Department of Radiology, Tucson, AZ (United States); Taljanovic, Mihra S. [University of Arizona HSC, Radiology and Orthopaedic Surgery, Department of Radiology, Tucson, AZ (United States); Massey, Brandon Z. [The Village Offices, Institute for Plastic Surgery and Peripheral Nerve Surgery, Tucson, AZ (United States); Graham, Anna R. [University of Arizona HSC, Department of Pathology, Tucson, AZ (United States); Friend, Christopher J.; Walsh, Joshua A. [Inland Imaging, LLC, Spokane, WA (United States)

    2008-04-15

    Behcet&apos;s disease is an inflammatory disease of unknown cause characterized by intermittent episodes of acute inflammation manifested by oral aphthous ulcers, genital ulcers, uveitis, and skin lesions. We report a rare case of myonecrosis associated with Behcet&apos;s disease. Myonecrosis of Behcet&apos;s disease can mimic soft tissue abscess and therefore awareness of this entity in the appropriate clinical setting is important for initiation of appropriate and timely treatment. (orig.)

  20. &apos;Minergie&apos; on a large scale; Minergie im Grossformat

    Energy Technology Data Exchange (ETDEWEB)

    Hawkins, A. C.

    2007-07-01

    This article takes a look at two housing estates in the suburbs of Zurich, Switzerland, that conform to &apos;Minergie&apos; low energy-consumption standards. In contrast to single-family homes normally associated with the &apos;Minergie&apos; low energy-consumption label, here, two &apos;Minergie&apos; housing estates each with a number of apartment blocks are looked at. The systems for providing regulated fresh air with heat recovery are described. In one of the estates, heat is collected from a nearby sewer via heat-exchangers and, together with a heat-pump system, is used to heat the apartments. Nearby, in the other &apos;Minergie&apos; estate, a large, mains-connected photovoltaics plant is used to meet the net power requirements of a heat-pump-based heating system. In summer, power is sold to the local electricity utility.

  1. Those who &apos;Cry Wolf&apos; about nuclear safety damage their own credibility

    Energy Technology Data Exchange (ETDEWEB)

    Shepherd, John [nuclear 24, Redditch (United Kingdom)

    2016-06-15

    Do you recall the fable of the boy who cried wolf? I was reminded of this following the latest call by Germany&apos;s Federal Environment Minister, Barbara Hendricks, for Belgium to take two of its nuclear reactors off the grid, citing &apos;'questions'&apos; about the units&apos; safety. Those in positions of power and influence in one country should take care to be as responsible in their dealings with their neighbours as they are in handling domestic matters of state. Those who see &apos;danger&apos; where there is none are not being good neighbours. They are generating fear and alarm without good cause and should mind their own business.

  2. ApoE allele frequencies in Italian sporadic and familial Alzheimer's disease.

    Science.gov (United States)

    Sorbi, S; Nacmias, B; Forleo, P; Latorraca, S; Gobbini, I; Bracco, L; Piacentini, S; Amaducci, L

    1994-08-15

    Recent studies have provided evidence of association of apolipoprotein E (ApoE) epsilon 4 allele and late onset familial and sporadic Alzheimer's disease (AD). Epidemiological studies have established allelic variation at the ApoE locus. We have analyzed the ApoE gene polymorphism in a sample of 446 Italian subjects. Our data confirm a significant association between epsilon 4 allele and sporadic AD. The frequency of epsilon 4 allele in early onset familial AD patients was comparable to control values suggesting that epsilon 4 allele does not represent a risk factor for early onset familial AD (EOFAD). Moreover, we found a not previously reported association between ApoE epsilon 2 allele and sporadic AD and EOFAD. PMID:7824157

  3. Special Data Collection System (SDCS) NTS Event &apos;Bulkhead&apos;, 27 April 1977. Technical report

    Energy Technology Data Exchange (ETDEWEB)

    Naylor, G.R.; Dawkins, M.S.

    1978-12-18

    This event report contains seismic data from the Special Data Collection System (SDCS), and other sources for the &apos;Bulkhead&apos; event. The report also contains epicenter information from seismic observations.

  4. Atoms of helium in interstellar and interplanetary medium. 1. Observations of scattering ultraviolet radiation in lines of HI lambda 1216 A and HeI lambda 584 A by the &apos;&apos;Prognoz-5&apos;&apos; and &apos;&apos;Prognoz-6&apos;&apos; satellites

    Energy Technology Data Exchange (ETDEWEB)

    Burgin, M.S.; Kurt, V.G.; Mironova, E.N.; Prokhorenko, V.I.; Ehjsmont, N.A.; Berto, Zh.L.; Dalod' e, F.

    A review of observation results of the joint Soviet- French experiment on the measurement of scattering ultraviolet radiation in interplanetary medium in HIlambda1216 A and HeI 584 A hydrogen lines, is presented. The four-channel photometer Oas installed at two high-apogee satellites of &apos;&apos;Prognoz-5&apos;&apos; and &apos;&apos;Prognoz-6&apos;&apos;. The sky scanning was performed due to satellite rotation around its axis directed to the Sun. A vessel with hydrogen was set up in the HILsub(..cap alpha..) channel in order to measure the Lsub(..cap alpha..) line width. All parameters connected with the Sun motion in interplanetary medium were determined.

  5. The role of bioenergy in the energy transition. The &apos;&apos;Smart Bioenergy&apos;&apos; concept; Die Rolle der Bioenergie in der Energiewende. Das &apos;&apos;Smart Bioenergy&apos;&apos;-Konzept

    Energy Technology Data Exchange (ETDEWEB)

    Thraen, Daniela [Helmholtz-Zentrum fuer Umweltforschung - UFZ, Leipzig (Germany). Dept. Bioenergie (BEN); DBFZ Deutsches Biomasseforschungszentrum gGmbH, Leipzig (Germany). Bereich Bioenergiesysteme; Seitz, Stefanie B.; Wirkner, Ronny; Nelles, Michael [DBFZ Deutsches Biomasseforschungszentrum gGmbH, Leipzig (Germany). Bereich Bioenergiesysteme

    2016-08-01

    The energy system&apos;s transformation away from fossil and therefore finite resources and ecological harmful use towards renewable energy sources and sustainable forms of usage proceeds. But even after 35 years, the German energy transition has yet not reached its ambitious goals. Moreover, in the recent years the progress has stagnated in certain areas. This is due to the fact that one of the central challenges of the energy system&apos;s changeover to an sole use renewable energy (RE) have not yet mastered: the reliable and stable delivery of RE for all energy dependent sectors starting form electricity via heat to mobility in the face of fluctuating energy sources like sun and wind. Bioenergy with its flexible use of innovative technologies and smart integration in the overall system is therefore vital to grant stability of energy supply. Furthermore, bioenergy can recourse on sustainable resources and may become therefore the backbone of the future bioeconomy. For this purpose an integrative approach is necessary that aligns the aforementioned building blocks in a cohesive whole: the Smart Bioenergy concept - that will be presented here with its elements but also open questions and challenges.

  6. Schroedinger-Newton &apos;collapse&apos; of the wavefunction

    Energy Technology Data Exchange (ETDEWEB)

    Van Meter, J R, E-mail: james.r.vanmeter@nasa.gov [Department of Physics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250 (United States)

    2011-11-07

    It has been suggested that the nonlinear Schroedinger-Newton equation might approximate the coupling of quantum mechanics with gravitation, particularly in the context of the Moeller-Rosenfeld semiclassical theory. Numerical results for the spherically symmetric, time-dependent, single-particle case are presented, clarifying and extending previous work on the subject. It is found that, for a particle mass greater than 1.14({h_bar}{sup 2}/(G{sigma})){sup 1/3}, a wave packet of width {sigma} partially &apos;collapses&apos; to a groundstate solution found by Moroz, Penrose and Tod, with excess probability dispersing away. However, for a mass less than 1.14({h_bar}{sup 2}/(G{sigma})){sup 1/3}, the entire wave packet appears to spread like a free particle, albeit more slowly. It is argued that, on some scales (lower than the Planck scale), this theory predicts significant deviation from conventional (linear) quantum mechanics. However, owing to the difficulty of controlling quantum coherence on one hand, and the weakness of gravity on the other, definitive experimental falsification poses a technologically formidable challenge.

  7. EU-project &apos;'GasHighWay'&apos; and utilization of biogas as a motor fuel; Das EU-Projekt &apos;GasHighWay&apos; und der Einsatz von Biogas als Kraftstoff

    Energy Technology Data Exchange (ETDEWEB)

    Haas, Andrea [Foerdergesellschaft fuer nachhaltige Biogas- und Bioenergienutzung (FnBB) e.V., Kirchberg/Jagst (Germany)

    2011-05-15

    The EU project &apos;GasHighWay&apos; is to enhance the use of natural gas and biogas as motor fuels. While Germany is the European leader in biogas production for heat and power generation, other European countries like Switzerland or Sweden are more advanced when it comes to using biogas as a motor fuel.

  8. Touching the &apos;'Pariah'&apos;. China&apos;s economic and strategic interests in the Caspian Crescent with special reference to Beijing&apos;s energy policy towards post-Pahlavi Iran

    Energy Technology Data Exchange (ETDEWEB)

    Weimar, Niclas D.

    2010-07-01

    The author of the contribution under consideration focuses on China&apos;s economic and strategic interests in the Caspian Crescent and the means by which the Peoples Republic of China seeks to enforce them. Most analysts, researches and Chinese officials rank the issue of the region&apos;s hydrocarbon resources equal to or even below other issues of interest such as border issues, regional stability and terrorism. But the facts previously stated raise questions about the particular role of energy in the overall context of China&apos;s interests in that region as well as the significance of Sino-Iranian relations for Beijing&apos;s regional goals. These goals give particular consideration to the Chinese government&apos;s blunt commitment to its ties with Pariah Indian despite pressure and criticism from the USA. Thereon, this study features three research objectives: (1) To outline China&apos;s economic and strategic interests in the Caspian Crescent and demonstrate they are dominated by Beijing&apos;s fundamental interest in oil and gas; (2) To demonstrate that Iran is China&apos;s key partner in the whole region around the Caspian Sea for the accomplishment of its interests in hydrocarbons and regional preponderance.

  9. Pythagoras&apos;s theorem on a two-dimensional lattice from a &apos;natural&apos; Dirac operator and Connes&apos;s distance formula

    Energy Technology Data Exchange (ETDEWEB)

    Dai Jian [Theory Group, Department of Physics, Peking University, Beijing (China)]. E-mail: jdai@mail.phy.pku.edu.cn; Song Xingchang [Theory Group, Department of Physics, Peking University, Beijing (China)]. E-mail: songxc@ibm320h.phy.pku.edu.cn

    2001-07-13

    One of the key ingredients of Connes&apos;s noncommutative geometry is a generalized Dirac operator which induces a metric (Connes&apos;s distance) on the pure state space. We generalize such a Dirac operator devised by Dimakis et al, whose Connes distance recovers the linear distance on an one-dimensional lattice, to the two-dimensional case. This Dirac operator has the local eigenvalue property and induces a Euclidean distance on this two-dimensional lattice, which is referred to as &apos;natural&apos;. This kind of Dirac operator can be easily generalized into any higher-dimensional lattices. (author)

  10. Initialization of the Euler model MODIS with field data from the &apos;&apos;EPRI plume model validation project&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Petersen, G.; Eppel, D.; Lautenschlager, M.; Mueller, A.

    1985-01-01

    The program deck MODIS (&apos;&apos;Moment DIstrubution&apos;&apos;) is designed to be used as operational tool for modelling the dispersion of a point source under general atmospheric conditions. The concentration distribution is determined by calculating its cross-wind moments on a vertical grid oriented in the main wind direction. The model contains a parametrization for horizontal and vertical diffusion coefficients based on a second order closure model. The Eulerian time scales, preliminarily determined by fitting measured plume cross sections, are confirmed by comparison with data from the EPRI plume model validation project. 8 refs., 9 figs.

  11. Hot air instead of electricity. Special modular pumps at &apos;&apos;Saunaparadies Erding&apos;&apos;; Heissluft statt Elektrowaerme. Modulare Sonderpumpen im Saunaparadies Erding

    Energy Technology Data Exchange (ETDEWEB)

    Christoph, D. [Grundfos GmbH, Erkrath (Germany)

    2008-07-01

    &apos;&apos;Saunaparadies Erding&apos;&apos; is a sauna spa with 16 newly constructed saunas and with an uncommon heating concept. The investor opted for hot air instead of electric heating. Accordingly, an industrial-scale boiler was installed in the mechanical equipment room. The boiler supplies air of 170 degC to the air-to-water heat exchangers in the sauna cabins. The design of this system was a great challenge to the planners and constructors and also to the components of the piping system. (orig.)

  12. The &apos;&apos;penumbra sign&apos;&apos; on T1-weighted MRI for differentiating musculoskeletal infection from tumour

    Energy Technology Data Exchange (ETDEWEB)

    McGuinness, B.; Wilson, N.; Doyle, A.J. [Middlemore Hospital, Department of Radiology, Masterton (New Zealand)

    2007-05-15

    The &apos;&apos;penumbra sign&apos;&apos; on unenhanced T1-weighted MR sequences is thought to be helpful for discriminating subacute osteomyelitis from bone neoplasm. We sought to quantify the sensitivity and specificity of this sign for bone and soft tissue infection in a general referral population. Clinical coding was used to identify patients admitted to Middlemore Hospital (Auckland, New Zealand) between January 2000 and November 2003 with a diagnosis of either infection or neoplasm of the upper or lower limb who had undergone an MRI scan. One hundred and eighty-three patients were included in the study. Fifty-seven patients had bone or soft tissue infection. One hundred and twenty-six had a bone or soft tissue neoplasm. Relevant unenhanced T1-weighted images were selected for each patient, randomised and placed in a folder on the Hospital PACS system. Four reviewers were shown the original article describing the penumbra sign and then asked to look at the images in the folder stating whether the penumbra sign was present or absent. The average specificity and sensitivity of the penumbra sign for musculoskeletal infection was 96% (range 94-99%) and 27% (range 21-34%) respectively. Interobserver reliability was moderate to good with an average kappa score of 0.57 (range 0.50-0.62). For isolated soft tissue infection there was a higher sensitivity (54%, 33-83%) but with similar specificity (98%, 96-100%) and interobserver reliability (0.47, 0.33-0.58). Of the 11 out of 57 (19%) true positive penumbra signs identified by a consensus of three or more of the observers, all were subacute, chronic or acute on chronic infections. The penumbra sign has a high specificity for musculoskeletal infection. This is also true for isolated soft tissue infection. The penumbra sign is helpful in differentiating neoplasm from infection and its presence in the setting of a high pretest probability is useful in making a diagnosis of infection. (orig.)

  13. &apos;Lifecycle cost&apos; management used in ITER project

    International Nuclear Information System (INIS)

    &apos;Lifecycle cost&apos; management is a new kind of management. The International Nuclear Fusion Energy Program was managing by &apos;lifecycle cost&apos; method. The cost and other factors associated with cost were under control by the method. In the future, the system engineering method should be focused in engineering management, paying equal attention to both evaluation and management, and strengthening the application of information system in the cost management to effectively improve the management level. (authors)

  14. Why Was Kelvin&apos;s Estimate of the Earth&apos;s Age Wrong?

    Science.gov (United States)

    Lovatt, Ian; Syed, M. Qasim

    2014-01-01

    This is a companion to our previous paper in which we give a published example, based primarily on Perry&apos;s work, of a graph of ln "y" versus "t" when "y" is an exponential function of "t". This work led us to the idea that Lord Kelvin&apos;s (William Thomson&apos;s) estimate of the Earth&apos;s age was…

  15. Oxidative Stress Impairs Learning and Memory in apoE Knockout Mice

    OpenAIRE

    Evola, Marianne; Hall, Allyson; Wall, Trevor; Young, Alice; Grammas, Paula

    2010-01-01

    Cardiovascular risk factors, such as oxidative stress and elevated lipids, are linked to the development of cognitive impairment. A mediator common to both stressors is the apolipoprotein E (apoE). The objectives of this study are to determine the effects of apoE deficiency and diet-induced systemic oxidative stress in mice on vascular expression of inflammatory proteins and on cognitive function. Mice are placed on a diet enriched in homocysteine for fifteen weeks and then assessed for spati...

  16. Leucine supplementation via drinking water reduces atherosclerotic lesions in apoE null mice

    OpenAIRE

    Zhao, Yang; Dai, Xiao-Yan; Zhou, Zhou; Zhao, Ge-xin; Wang, Xian; Xu, Ming-Jiang

    2015-01-01

    Aim: Recent evidence suggests that the essential amino acid leucine may be involved in systemic cholesterol metabolism. In this study, we investigated the effects of leucine supplementation on the development of atherosclerosis in apoE null mice. Methods: ApoE null mice were fed with chow supplemented with leucine (1.5% w/v) in drinking water for 8 week. Aortic atherosclerotic lesions were examined using Oil Red O staining. Plasma lipoprotein-cholesterol levels were measured with fast protein...

  17. Contributions to the qualification of the &apos;'CRISTAL'&apos; criticality calculi scheme: interpretation of critical experiments. Elaboration of a characterization system of neutronic configurations; Contributions a la qualification du schema de calcul de criticite &apos;'cristal'&apos;: interpretation d&apos;experiences critiques. Elaboration d&apos;un systeme de caracterisation des configurations neutroniques

    Energy Technology Data Exchange (ETDEWEB)

    Gagnier, E

    1999-06-01

    This thesis work is about the validation of the new criticality-safety package CRISTAL and contributes to the modernization and the improvement of the computational tools. The first part presents neutronic elements, the objectives of safety criticality studies and the package CRISTAL. Then, the validation work concerned two series of experiments involving uranyl solutions (UO{sub 2}F{sub 2}) and UO{sub 2} powders. For these experiments, the differences between the computation results and the experimental results were analysed. It was highlighted interesting physical phenomena such of the compensations of errors between the approximate representation by the 99 energy group structure on the first resonance of oxygen and the anisotropy of the diffusion simulation as well as the influence of uranium 234 in high enriched solutions in uranium 235. Once the work of the experimental qualification carried out, raises the question of the use the base of qualification and the &apos;'calculation-experiment'&apos; variations which are referred to it. It is often difficult to establish the link between the &apos;&apos;studied configuration&apos;&apos; and the experiments of the base of qualification. The presented characterisation system proposes to answer in a way automatic and quantified this difficulty: - in bringing an answer on the package qualification for the studied configuration, - in giving an estimate of the package bias. To answer these points, it was defined a set of 35 characteristic neutronic parameters representing the behaviour of the medium. To process the information brought by these parameters and to use it to answer the objectives of the system, we called upon statistical methods (Principal Components Analysis and Sliced Inverse Regression). The results obtained in the feasibility studies showed the relevance of these methods for the considered objectives. (author)

  18. Teaching Laura Kipnis&apos;s "Love&apos;s Labors" in "Ways of Reading"

    Science.gov (United States)

    Fike, Matthew A.

    2013-01-01

    This essay describes a method of teaching a very challenging anthology piece: Laura Kipnis&apos;s "Love&apos;s Labors" (chapter 1 of her 2003 "Against Love: A Polemic"). The method, although designed for a critical thinking course, should also provide resources for those who teach Kipnis&apos;s work in writing courses. Using…

  19. Master&apos;s Degree Learners&apos; Use of Theory in Designing Instructional Materials

    Science.gov (United States)

    Wojtecki, John A.

    2012-01-01

    Educational institutions offering a master&apos;s degree program in instructional design incorporate instructional design theory into the master&apos;s degree course offerings. The responsibility for the student is to develop coursework. Master&apos;s degree learners will use instructional design theory to develop course materials. This study…

  20. Agreements for energy and environment; Patto per l&apos;energia e l&apos;ambiente

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    In this paper are reported in ambit of italian national conference of energy and environment, an agreement undersigned by deputy of political and social forces. [Italian] In questo documento e&apos; illustrato il patto per l&apos;energia e l&apos;ambiente cui hanno aderito forze sociali e politiche del paese.

  1. Primary Health Care Providers&apos; Knowledge Gaps on Parkinson&apos;s Disease

    Science.gov (United States)

    Thompson, Megan R.; Stone, Ramona F.; Ochs, V. Dan; Litvan, Irene

    2013-01-01

    In order to determine primary health care providers&apos; (PCPs) knowledge gaps on Parkinson&apos;s disease, data were collected before and after a one-hour continuing medical education (CME) lecture on early Parkinson&apos;s disease recognition and treatment from a sample of 104 PCPs participating at an annual meeting. The main outcome measure…

  2. Individual Differences in Children&apos;s and Parents&apos; Generic Language

    Science.gov (United States)

    Gelman, Susan A.; Ware, Elizabeth A.; Kleinberg, Felicia; Manczak, Erika M.; Stilwell, Sarah M.

    2014-01-01

    Generics ("&apos;Dogs&apos; bark") convey important information about categories and facilitate children&apos;s learning. Two studies with parents and their 2- or 4-year-old children (N = 104 dyads) examined whether individual differences in generic language use are as follows: (a) stable over time, contexts, and domains, and (b) linked…

  3. The Impact of Adolescents&apos; Dyslexia on Parents&apos; and Their Own Educational Expectations

    Science.gov (United States)

    Rimkute, Laura; Torppa, Minna; Eklund, Kenneth; Nurmi, Jari-Erik; Lyytinen, Heikki

    2014-01-01

    The present study examined the role that adolescents&apos; dyslexia plays in their educational expectations, as well as their parents&apos; expectations concerning their offspring&apos;s future education. To investigate this, 170 adolescents were asked to report their educational expectations on two occasions while they were still attending…

  4. James Baldwin&apos;s "Everybody&apos;s Protest Novel": Educating Our Responses to Racism

    Science.gov (United States)

    Frank, Jeff

    2014-01-01

    The aim of this article is to establish--and explore--James Baldwin&apos;s significance for educational theory. Through a close reading of "Everybody&apos;s Protest Novel", I show that Baldwin&apos;s thinking is an important (if unrecognized) precursor to the work of Stanley Cavell and Cora Diamond, and is relevant to a number of…

  5. White Teachers&apos; Racial Identities, Perceptions of Students&apos; Behaviors, and Symptoms of Burnout

    Science.gov (United States)

    Chen, Cynthia E.

    2013-01-01

    Educational research has examined factors contributing to teachers&apos; burnout symptoms, including their perceptions of student behaviors (Ingersoll, 2003). Interestingly, teacher and students&apos; races have been differentially related to teachers&apos; perceptions of student behavior (Downey & Pribesh, 2004); this disparity in perceptions…

  6. Green economy. From theory to practice; &apos;Green Economy&apos;. Von der Theorie zur Praxis

    Energy Technology Data Exchange (ETDEWEB)

    Wackerbauer, Johann [ifo Institut, Muenchen (Germany)

    2013-04-15

    The topic of &apos;&apos;green economy&apos;&apos; took centre stage at last year&apos;s UN conference on sustainable development in Rio de Janeiro. The term &apos;&apos;green economy&apos;&apos; has many interpretations to it, ranging from an emphasis on energy and resource efficiency in an otherwise ordinary economy to positions that are critical of growth as such. What can be considered as the essence of the concept of green economy, and what challenges need to be mastered on the way there? The present study shows that there is more to the term than most companies and consumers are aware of.

  7. Resting-state functional connectivity changes in aging apoE4 and apoE-KO mice

    NARCIS (Netherlands)

    Zerbi, V.; Wiesmann, M.; Emmerzaal, T.L.; Jansen, D.; Beek, M. van; Mutsaers, M.P.C.; Beckmann, C.F.; Heerschap, A.; Kiliaan, A.J.

    2014-01-01

    It is well established that the cholesterol-transporter apolipoprotein epsilon (APOE) genotype is associated with the risk of developing neuro-degenerative diseases. Recently, brain functional connectivity (FC) in apoE-epsilon 4 carriers has been investigated by means of resting-state fMRI, showing

  8. Resting-state functional connectivity changes in aging apoE4 and apoE-KO mice

    NARCIS (Netherlands)

    Zerbi, V.; Wiesmann, M.; Emmerzaal, T.L.; Jansen, D.; Beek, M. van; Mutsaers, M.P.; Beckmann, C.F.; Heerschap, A.; Kiliaan, A.J.

    2014-01-01

    It is well established that the cholesterol-transporter apolipoprotein epsilon (APOE) genotype is associated with the risk of developing neurodegenerative diseases. Recently, brain functional connectivity (FC) in apoE-epsilon4 carriers has been investigated by means of resting-state fMRI, showing a

  9. Biodegradable loose fill packing material &apos;ECO-FOAM&apos;. Seibunkaisei barajo kanshozai &apos;ECO-FOAM&apos;

    Energy Technology Data Exchange (ETDEWEB)

    1994-06-01

    Biodegradable loose fill packing material &apos;ECO-FOAM&apos; was developed to prevent pollution of the natural environment after plastics have been used. The material uses a hybrid cornstarch of 95% or higher and a small amount of water-soluble synthetic additive(polyvinyl alcohol). The manufacturing method is patented by National And Chemical Corporation in the U.S.A. The material has nearly the same buffering performance as the conventional foaming polystyrene, can be used on the existing filling facilities, and is non-electrically chargeable. Its raw material causes no destruction of resources and forests as experienced in petroleum and lumbers, and requires no foaming material such as butane for swelling, but foams naturally by mechanical action and heat of an extruding machine. The material has biodegradability of full degradation type, and is friendly with the environment. It is non-poisoning and safe, but has some problem in water resistance. While the material may be treated in various ways after having been disposed of as refuse, it may be incinerated, filled, or utilized as compost. The material may be degraded by activated sludge generated from sewage treatment. 5 figs.

  10. CHEMICAL COMPOSITION OF COMET C/2007 N3 (LULIN): ANOTHER &apos;'ATYPICAL'&apos; COMET

    Energy Technology Data Exchange (ETDEWEB)

    Gibb, Erika L.; Sudholt, Emily [Department of Physics and Astronomy, University of Missouri-St. Louis, St. Louis, MO 63121 (United States); Bonev, Boncho P.; Villanueva, Geronimo; Radeva, Yana [Department of Physics, The Catholic University of America, Washington, DC 20064 (United States); DiSanti, Michael A.; Mumma, Michael J., E-mail: gibbe@umsl.edu [Goddard Center for Astrobiology, Solar System Exploration Division, NASA Goddard Space Flight Center, Code 690, Greenbelt, MD 20771 (United States)

    2012-05-10

    We measured the volatile chemical composition of comet C/2007 N3 (Lulin) on three dates from 2009 January 30 to February 1 using NIRSPEC, the high-resolution ({lambda}/{Delta}{lambda} Almost-Equal-To 25,000), long-slit echelle spectrograph at Keck 2. We sampled nine primary (parent) volatile species (H{sub 2}O, C{sub 2}H{sub 6}, CH{sub 3}OH, H{sub 2}CO, CH{sub 4}, HCN, C{sub 2}H{sub 2}, NH{sub 3}, CO) and two product species (OH* and NH{sub 2}). We also report upper limits for HDO and CH{sub 3}D. C/2007 N3 (Lulin) displayed an unusual composition when compared to other comets. Based on comets measured to date, CH{sub 4} and C{sub 2}H{sub 6} exhibited &apos;normal&apos; abundances relative to water, CO and HCN were only moderately depleted, C{sub 2}H{sub 2} and H{sub 2}CO were more severely depleted, and CH{sub 3}OH was significantly enriched. Comet C/2007 N3 (Lulin) is another important and unusual addition to the growing population of comets with measured parent volatile compositions, illustrating that these studies have not yet reached the level where new observations simply add another sample to a population with well-established statistics.

  11. Households&apos; recycling efforts

    Energy Technology Data Exchange (ETDEWEB)

    Bruvoll, Annegrete; Halvorsen, Bente [Research Department, Statistics Norway, 8131 Dep, N-0033 Oslo (Norway); Nyborg, Karine [The Ragnar Frisch Centre of Economic Research, Gaustadalleen 21, N-0349 Oslo (Norway)

    2002-11-01

    Households&apos; recycling effort is often argued to be of an insignificant size. It is also frequently argued that this contribution, if significant, is not a cost to households, since it is voluntary. Thus households&apos; use of time and energy are frequently disregarded in cost-benefit analyses of stricter recycling targets. In this survey, based on 1162 interviews, we find that sorting at source involves significant extra use of time and energy in the households. On average, each of those asked reported that they use close to half an hour a week for cleaning, sorting and transporting recyclable waste. On average, 185 h is used per tonne of waste. Four out of ten reported that they use warm or hot water to clean the materials. When investigating the motives for sorting waste, we find that many perceive sorting as mandatory, while some in fact find it a pleasant activity in itself. Moral motives for sorting at source are also widespread. A majority would prefer that a company took over the sorting if this were possible, and on average, the respondents are willing to pay US$ 20/year for this service.

  12. Apolipoprotein E (ApoE) polymorphism is related to differences in potential fertility in women: a case of antagonistic pleiotropy?

    Science.gov (United States)

    Jasienska, Grazyna; Ellison, Peter T; Galbarczyk, Andrzej; Jasienski, Michal; Kalemba-Drozdz, Malgorzata; Kapiszewska, Maria; Nenko, Ilona; Thune, Inger; Ziomkiewicz, Anna

    2015-03-22

    The alleles that are detrimental to health, especially in older age, are thought to persist in populations because they also confer some benefits for individuals (through antagonistic pleiotropy). The ApoE4 allele at the ApoE locus, encoding apolipoprotein E (ApoE), significantly increases risk of poor health, and yet it is present in many populations at relatively high frequencies. Why has it not been replaced by natural selection with the health-beneficial ApoE3 allele? ApoE is a major supplier of cholesterol precursor for the production of ovarian oestrogen and progesterone, thus ApoE has been suggested as the potential candidate gene that may cause variation in reproductive performance. Our results support this hypothesis showing that in 117 regularly menstruating women those with genotypes with at least one ApoE4 allele had significantly higher levels of mean luteal progesterone (144.21 pmol l(-1)) than women with genotypes without ApoE4 (120.49 pmol l(-1)), which indicates higher potential fertility. The hormonal profiles were based on daily data for entire menstrual cycles. We suggest that the finding of higher progesterone in women with ApoE4 allele could provide first strong evidence for an evolutionary mechanism of maintaining the ancestral and health-worsening ApoE4 allele in human populations.

  13. Maglev technology - results and conclusions of Maglev&apos;2006; Magnetschwebetechnologie - Ergebnisse und Erkenntnisse von der MAGLEV&apos;2006

    Energy Technology Data Exchange (ETDEWEB)

    Schach, R.; Naumann, R. [Technische Univ. Dresden (Germany). Inst. fuer Baubetriebswesen

    2007-04-15

    From 13 to 15 September 2006, Germany acted as host for &apos;Maglev &apos;2006&apos; under the patronage of the German Federal Ministry of Transport, Building and Urban Development (BMVBS). This event also integrated the Dresden &apos;Fachtagung Transrapid&apos;, a specialist conference, which the Dresden University of Technology has now organized for the sixth time. (orig.)

  14. SKI&apos;s and SSI&apos;s review of SKB&apos;s safety report SR-Can

    Energy Technology Data Exchange (ETDEWEB)

    Dverstorp, Bjoern; Stroemberg, Bo (and others)

    2008-03-15

    This report summarises SKI&apos;s and SSI&apos;s joint review of the Swedish Nuclear Fuel and Waste Management Co&apos;s (SKB) safety report SR-Can (SKB TR-06-09). SR-Can is the first assessment of post-closure safety for a KBS-3 spent nuclear fuel repository at the candidate sites Forsmark and Laxemar, respectively. The analysis builds on data from the initial stage of SKB&apos;s surface-based site investigations and on data from full-scale manufacturing and testing of buffer and copper canisters. SR-Can can be regarded as a preliminary version of the safety report that will be required in connection with SKB&apos;s planned licence application for a final repository in late 2009. The main purpose of the authorities&apos; review is to provide feedback to SKB on their safety reporting as part of the pre-licensing consultation process. However, SR-Can is not part of the formal licensing process. In support of the authorities&apos; review three international peer review teams were set up to make independent reviews of SR-Can from three perspectives, namely integration of site data, representation of the engineered barriers and safety assessment methodology, respectively. Further, several external experts and consultants have been engaged to review detailed technical and scientific issues in SR-Can. The municipalities of Oesthammar and Oskarshamn where SKB is conducting site investigations, as well NGOs involved in SKB&apos;s programme, have been invited to provide their views on SR-Can as input to the authorities&apos; review. Finally, the authorities themselves, and with the help of consultants, have used independent models to reproduce part of SKB&apos;s calculations and to make complementary calculations. All supporting review documents are published in SKI&apos;s and SSI&apos;s report series. The main findings of the review are: -SKB&apos;s safety assessment methodology is overall in accordance with applicable regulations, but part of the methodology needs to be

  15. Reduction of NO{sub x} emissions from the combustion of hard coals &apos;'RENOX'&apos;; Reduccion de Emisiones de NO{sub x} en la combustion de Carbones Antracitosos &apos;'RENOX'&apos;

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    The present project, whose abbreviated name is RENOX, has the aim of reducing NO{sub x} emissions from the combustion of hard coals or coals with low volatile matter contents. It is applied to the combustion of these coals in arc boilers (or &apos;'U'&apos; boilers), where the necessary combination of long presence times and high hearth temperatures facilitates the high NO{sub x} levels reached. The intended reduction in emissions is approached through the application of primary combustion measures, also known as adjustment or refining of combustion. This solution is adopted for two reasons: due to its efficiency in environmental and economic terms, and because it is an unavoidable step if the levels to be attained require the installation of specific gas crubbing systems (secondary measures). The practical nature of RENOX has led to the development of the project in two phases, corresponding to two logical stages: phase 1, associated with the RNA project, on the characterization of emissions and combustion, complex numeric modelling of flows inside the boiler, and determination of the viability and scope of the optimization of emissions, and phase 2, the OPTINOXproject, which follows the methodology and lessons of the first phase and, as a natural continuation of this, deals with the design, development, manufacturing and validation of a computerized system that processes real time data on the boiler where it is installed to monitor, supervise and control the commercial operation of the plant, optimizing its combustion efficiency and/or NO{sub x} emissions. The practical objective of this project is represented by the construction of a validated prototype to demonstrate the OPTINOX system, which is capable of determining operating and control strategies that can minimize NO{sub x} emissions without unfavourably affecting the productivity and specific consumption of the units. Phase 1 development activities took place in groups 3, 4 and 5 of Compostilla

  16. Workshop &apos;&apos;actual data processing supported applications in the area of soil protection and contaminated sites&apos;&apos;; Workshop &apos;&apos;Aktuelle DV-gestuetzte Anwendungen im Bodenschutz- und Altlastenbereich&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Mathews, Jeannette; Frauenstein, Joerg; Mahrle, Sabine (comps.)

    2011-05-15

    Within the 5th workshop at the Federal Environment Agency (Dessau-Rosslau, Federal Republic of Germany) from 28th to 29th September, 2010, the following lectures were held: (1) Information systems for the contaminated site management in Baden-Wuerttemberg (I. Blankenhorn); (2) SALKA 7 - A web based solution for a central data handling of the Saxonian register of contaminated sites (S. Gruhne); (3) Information system (ABuDIS) for contaminated sites, soil conservation and disposal sites in the Free State of Bavaria - Experiences from the project &apos;Data quality&apos; (O. Klammer); (4) Environmental specimen bank - Web interface (M. Ruether); (5) Biocides in the Web - A portal for the publicity (G. Minx); (6) INSPIRE - Thematic work group (TWG) Appendix III Soil (S. Marahrens); (6) INSPIRE - State of the art, requirements (R. Baritz); (7) Requirements for the interoperability of soil data from the view of the Federal Environment Agency (F. Hilliges); (8) Implementation of the PortalU-Software in the European context - The project GS Soil (K. Feiden); (9) What is offered by PRTR - Pollutant Release and Transfer Register? (E. Six); (10) GSBL - Application for web recherche (B. Liebscher); (11) New Web Map Service for ground water background values (B. Wagner); (12) Visualized information on contaminated sites - A status (J. Frauenstein); (13) Utilization of industrial wastelands - An idea makes soil good. A project of BAFU for revitalization of industrial wastelands (K. Schenk); (14) Information on the status of ground water for the governmental real estates (H.-O. Zintz); (15) Application of data processing procedures of the artificial intelligence on an area-based representation of pollutant contents in settlement areas (T. Hertwig).

  17. Measure of the e+e-{yields}bb Cross Section at the LEP Energies; Medida de la seccion eficaz e&apos;'+e'&apos;-{yields}bb a las Energias de LEP

    Energy Technology Data Exchange (ETDEWEB)

    Arce Dubois, P.

    1992-07-01

    In the present work I analyse the data collected during 1990 by the L3 detector, situated in the electron-positron collider LEP. After selecting the events e&apos;'+e'&apos;-{yields} bb through their semileptonic decays into muons, I calculate the cross section for the process e&apos;'+e'&apos;- {yields} bb at different energy points around the mass of the vectorial boson Z, and I measure some parameters of the Standard Model, namely, the Br(b{yields}{mu} ),{gamma}{sub z}n-{yields}bb/{gamma}{sub z}n{yields}had and {gamma}{sub z}n{yields}bb{gamma}{sub z}n{yields}e&apos;'+e'&apos;-. (Author) 26 refs.

  18. May Goedel&apos;s Ideas Be Addressed Philosophically?

    Energy Technology Data Exchange (ETDEWEB)

    Dokulil, Milos [Department of Information Technologies, Faculty of Informatics, Masaryk University, Botanicka 68a, 602 00 Brno (Czech Republic)

    2007-11-15

    Goedel emphasised philosophy as an important tool in science. Much less is known about his religious background. We should bear in mind that our evaluational perspective differs very much from the one in which Goedel lived. He was personally sure that there must be another existence after death-an afterlife (&apos;of unlimited life span&apos;). As a &apos;Baptized Lutheran&apos; he did not include &apos;Trinity&apos; in his creed. He was also certain that mind is separate from matter. This text tries to include Libet&apos;s &apos;readiness potential&apos; into the debate concerning the specificity of the mind. Neither Goedel&apos;s identification of materialism with mechanism nor his vision of the &apos;spirit&apos; are a viable solution of the problem.

  19. KDYNA user&apos;s manual

    Energy Technology Data Exchange (ETDEWEB)

    Levatin, J.A.L.; Attia, A.V.; Hallquist, J.O.

    1990-09-28

    This report is a complete user&apos;s manual for KDYNA, the Earth Sciences version of DYNA2D. Because most features of DYNA2D have been retained in KDYNA much of this manual is identical to the DYNA2D user&apos;s manual.

  20. Japan&apos;s new energy policy

    International Nuclear Information System (INIS)

    Japan&apos;s energy policy is undergoing fundamental changes. The accident at TEPCO&apos;s Fukushima Daiichi nuclear power plant questions the future contribution of nuclear power in the national energy mix. Growing imports of fossil fuels to replace the lost nuclear capacity inflated energy prices and raise economic and energy security challenges. At the same time, the US shale gas and oil revolution is reshaping the global energy scene. Japan expects to take advantage of the trend to eliminate the &apos;Asian premium&apos; on natural gas prices and expand cheaper natural gas consumption. These developments have driven the Government of Japan to review its energy policy from scratch and adopt a new Strategic Energy Plan. This new policy has far reaching implications for gas and coal development in Japan but also for the international markets as Japan is the world&apos;s largest LNG importer and the second largest coal importer. This document summarizes the key findings of a new report by CEDIGAZ &apos;Japan&apos;s new energy policy: In search for stable and competitive energy supply&apos;. The report analyzes the current changes taking place on the gas and coal markets in Japan, in light of the new energy policy adopted in April 2014, and in particular the decision to restart safe nuclear power plants and push forward electricity market reforms

  1. Steady-State Confinement of Non-Neutral Plasmas Using Trivelpiece-Gould Modes Excited by a &apos;&apos;Rotating Wall&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    F. Anderegg; E.M. Hollmann; C.F. Driscoll

    1999-12-31

    A &apos;&apos;rotating wall&apos;&apos; voltage varying as exp(im{sub {theta}}{theta}+ ik{sub z}z - i2{pi}ft) can give steady-state confinement of more than 10{sup 9} charges in a Penning-Malmberg trap at 4 Tesla. For both pure ion plasmas and pure electron plasmas, the torque exerted on the plasma by the rotating wall exhibits peaks at the frequencies of k{sub z} {ne} 0 Trivelpiece-Gould modes. As expected, modes with f > m{sub {theta}}fr (i.e. propagating faster than the plasma rotation) give positive torque and cause plasma compression; and modes with f < m{sub {theta}}fr give adverse torque and cause plasma expansion. The rotating wall drive also causes plasma heating, but cyclotron radiation (in the electron case) and collisions with background residual neutral gas (in the ion case) keep the temperature low enough that background ionization is negligible. The rotating wall &apos;'slip'&apos; is typically greater for electrons than for ions, because f - m{sub {theta}}fr is proportional to the plasma frequency {omega}{sub p}. This contrasts with the k{sub z} = 0 rotating wall perturbation which couples to crystallized ion plasmas with no slip. By increasing the frequency of the rotating wall, we observed a plasma central density compression of about a factor of 20. These techniques may be useful for a variety of trapping experiments.

  2. Omani Students&apos; Definitions of Geography

    Science.gov (United States)

    Al-Nofli, Mohammed Abdullah

    2014-01-01

    Very few studies have been conducted on students&apos; definitions of geography. The purpose of the present study was to add to the existing literature by exploring Omani students&apos; definitions of geography. Participants were 477 students of grade 6 (ages 11-12) and grade 10 (ages 15-16) in one school district in Oman. They had been taught…

  3. Testing Bernoulli&apos;s Law

    Science.gov (United States)

    Ivanov, Dragia; Nikolov, Stefan; Petrova, Hristina

    2014-01-01

    In this paper we present three different methods for testing Bernoulli&apos;s law that are different from the standard "tube with varying cross-section." They are all applicable to high-school level physics education, with varying levels of theoretical and experimental complexity, depending on students&apos; skills, and may even be…

  4. Singapore&apos;s double festival

    International Nuclear Information System (INIS)

    Coinciding with celebrations for the nation&apos;s 25th anniversary, the 25th International Conference on High Energy Physics, held in Singapore from 2-8 August, was itself a double festival, with the Standard Model of contemporary physics and CERN&apos;s new LEP electron-positron collider providing the twin themes

  5. India&apos;s Higher Education Challenges

    Science.gov (United States)

    Altbach, Philip G.

    2014-01-01

    India, with the world&apos;s second largest higher education system and a rapidly growing economy as one of the BRIC nations, faces significant challenges in building both capacity and excellence in higher education. India&apos;s higher education system is characterized by "islands of excellence in a sea of mediocrity." The mainstream…

  6. Poland&apos;s syndrome: radiologic findings

    Energy Technology Data Exchange (ETDEWEB)

    Bazzi Junior, Joao Lourenco, E-mail: joaobazzijr@gmail.com [Clinica Via Imagem, Xanxere, SC (Brazil); Matta, Eduardo Simoes da [Pro Circulacao - Clinica de Angiologia, Cirurgia Vascular e Ecografia Vascular, Xanxere, SC (Brazil); De Bortoli, Luciano [Materclinica Materno Infantil, Xanxere, SC (Brazil); De Bortoli, Felipe Raasch [Universidade Catolica de Pelotas (UCPel), Pelotas, RS (Brazil). Fac. of Medicine

    2012-05-15

    Poland&apos;s syndrome is a rare non-inherited congenital anomaly. The authors describe the classic radiologic findings of Poland&apos;s syndrome by reporting the case of a male four-year old patient with asymmetry of hands and chest, illustrating the fundamental imaging criteria for a conclusive diagnosis. (author)

  7. Universal machine &apos;'Shtrek'&apos; and the tractor-lifter with pneumatic-equipment control. [Auxiliary multipurpose materials handling equipment

    Energy Technology Data Exchange (ETDEWEB)

    Bal' bert, B.M.; Borumenskiy, V.A.; Lishenko, A.P.; Mitchenko, G.A.

    1982-01-01

    The machine &apos;'Shtrek'&apos; is described. It makes it possible to mechanize over 20 auxiliary operations: loading-unloading operations: extraction of old and deformed timbering; dissmantling of obstructions; erection of different types of timbering; making and restoring of drainage channels; laying and straightening of a drift and its leveling; assembly and disassembly of pipelines and mine equipment, etc. Depending on the type of operation, the machine has the corresponding suspended equipment. The elementary variant has a limited area of application at mines of the central region of the Dunbass. Currently a pneumatic variant of the machine &apos;'Shtrek'&apos; has been developed. The electric motor and the starter of the pumping equipment of the machine have been replaced by a pneumatic motor and pneumatically controlled valve KTM-50. In this case there was significant reduction in the weight of the pumping equipment and in its overall dimensions; the electric drive of the hydraulic distributors for controlling the mechanisms were replaced by simpler pneumatic ones; the logical circuit of the control system was constructed on the USEPPA elements. A specialized tractor-lifter designed for moving suspended loads is described for auxiliary operations in the near-face zone of the preparatory drifts. The machine also lifts and lowers the boom, rotates the boom by 270/sup 0/ and additionally lifts and lowers the weight-lifting hook.

  8. Final Report, NERI Project: &apos;&apos;An Innovative Reactor Analysis Methodology Based on a Quasidiffusion Nodal Core Model&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Dmitriy Y. Anistratov; Marvin L. Adams; Todd S. Palmer; Kord S. Smith; Kevin Clarno; Hikaru Hiruta; Razvan Nes

    2003-08-04

    OAK (B204) Final Report, NERI Project: &apos;&apos;An Innovative Reactor Analysis Methodology Based on a Quasidiffusion Nodal Core Model&apos;&apos; The present generation of reactor analysis methods uses few-group nodal diffusion approximations to calculate full-core eigenvalues and power distributions. The cross sections, diffusion coefficients, and discontinuity factors (collectively called &apos;&apos;group constants&apos;&apos;) in the nodal diffusion equations are parameterized as functions of many variables, ranging from the obvious (temperature, boron concentration, etc.) to the more obscure (spectral index, moderator temperature history, etc.). These group constants, and their variations as functions of the many variables, are calculated by assembly-level transport codes. The current methodology has two main weaknesses that this project addressed. The first weakness is the diffusion approximation in the full-core calculation; this can be significantly inaccurate at interfaces between different assemblies. This project used the nodal diffusion framework to implement nodal quasidiffusion equations, which can capture transport effects to an arbitrary degree of accuracy. The second weakness is in the parameterization of the group constants; current models do not always perform well, especially at interfaces between unlike assemblies. The project developed a theoretical foundation for parameterization and homogenization models and used that theory to devise improved models. The new models were extended to tabulate information that the nodal quasidiffusion equations can use to capture transport effects in full-core calculations.

  9. Workers&apos; Education in Palestine

    Science.gov (United States)

    Elayassa, Wajih

    2013-01-01

    Due to the political context and the restrictions placed on general freedoms and trade union activities, workers&apos; education in Palestine remained informal and largely reliant on oral memory until the early 1990s. For decades, it was an integral part of political education. Workers&apos; education only became a stand-alone field after the…

  10. Gene-Environment Interplay in the Link of Friends&apos; and Nonfriends&apos; Behaviors with Children&apos;s Social Reticence in a Competitive Situation

    Science.gov (United States)

    Guimond, Fanny-Alexandra; Brendgen, Mara; Vitaro, Frank; Forget-Dubois, Nadine; Dionne, Ginette; Tremblay, Richard E.; Boivin, Michel

    2014-01-01

    This study used a genetically informed design to assess the effects of friends&apos; and nonfriends&apos; reticent and dominant behaviors on children&apos;s observed social reticence in a competitive situation. Potential gene-environment correlations (rGE) and gene-environment interactions (GxE) in the link between (a) friends&apos; and…

  11. European Union&apos;s environmental strategy

    International Nuclear Information System (INIS)

    Environmental policy is an art of execution. Hence the fact that European Union member states have recently managed to agree on targets of emissions to fight climate change leaves open the question of how they will meet them. Economics cannot but embrace the scientific consensus on climate change and cannot say much about the efficiency of alternative technologies. Yet, its expertise is valuable to calculate economic effects and fairness of policies and to assess the relevance of incentives structures and effectiveness of institutions put into place to convert scientific consensus into action. This article is concerned with this latter point: does the EU have the right institutions to fight climate change? We claim that such is not the case, and offer to institute a &apos;European Community of Environment, Energy and Research&apos; to go forward. Initially published in &apos;Revue de l&apos;OFCE&apos; No. 102

  12. Initial increase, &apos;&apos;peaking effect&apos;&apos;, in the internal friction of copper following pulsed neutron and electron irradiation

    Energy Technology Data Exchange (ETDEWEB)

    Simpson, H.M.; Parkin, D.M.; Goldstone, J.A.; Hemsky, J.W.

    1985-01-01

    Under certain experimental conditions the internal friction in metals can first increase and following prolonged irradiation decrease. Many models have been proposed to account for this &apos;&apos;peaking effect&apos;&apos;; however, in many of the cases, no effort is made to distinguish between the influence of interstitials and/or vacancies. To determine the nature of the point defect responsible for the peaking effect in high purity copper, we have performed a series of pulsed irradiations using neutrons and electrons. In all of the experiments an initial very rapid rise in the internal friction and Young&apos;s modulus was observed. These data show that a fast diffusing defect is responsible for the peaking effect: i.e. the interstitial.

  13. Review of the study &apos;&apos;Development of the energy markets - energy reference forecast&apos;&apos; from the perspective of brown coal

    International Nuclear Information System (INIS)

    In June 2014 the Federal Ministry for Economic Affairs and Energy (BMWi) published an expertise prepared by the EWI, GWS and Prognos institutes entitled &apos;&apos;Development of the energy markets - energy reference forecast&apos;&apos;. This study presents probable developments in the energy economy up to the year 2030 (reference forecast) on the assumption of a yet more stringent energy and climate protection policy as well as continuing impediments to its implementation. Complementing the forecast is an outlook up to the year 2050 (scenario of trends). But what do the findings of this expertise say about the future utilization of Germany&apos;s greatest domestic energy resource, namely brown coal? This question is addressed in the following article.

  14. Supplemental report on cost estimates&apos;

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-04-29

    The Office of Management and Budget (OMB) and the U.S. Army Corps of Engineers have completed an analysis of the Department of Energy&apos;s (DOE) Fiscal Year (FY) 1993 budget request for its Environmental Restoration and Waste Management (ERWM) program. The results were presented to an interagency review group (IAG) of senior-Administration officials for their consideration in the budget process. This analysis included evaluations of the underlying legal requirements and cost estimates on which the ERWM budget request was based. The major conclusions are contained in a separate report entitled, &apos;&apos;Interagency Review of the Department of Energy Environmental Restoration and Waste Management Program.&apos;&apos; This Corps supplemental report provides greater detail on the cost analysis.

  15. Short circuit - How our power supply became more expensive and got worse. A critical balance after eight years &apos;'deregulation'&apos; of the German Energy Economy; Kurzschluss - Wie unsere Stromversorgung teurer und schlechter wurde. Eine kritische Bilanz nach acht Jahren &apos;'Liberalisierung'&apos; der deutschen Energiewirtschaft

    Energy Technology Data Exchange (ETDEWEB)

    Leuschner, U.

    2007-07-01

    Since 16 years the author, a journalist, pursues the economical and political development of the German power economy. Many facts of this book prove: the impacting consequences as the clear scarcity of 1998 introduced deregulation, which has permitted 8 years long the discrimination of competitors and enabled in this way an exampleless concentration of market might (pt. 1); how supply reliability became worse and power and gas got more and more expensive (pt. 2); the complete insufficient practice of cartel agreements which is exchanged by administrative grid charges respectively &apos;&apos;incentive regulation&apos;&apos; (pt. 3); the relation between management and policy which has become still more distantless than in the epoche of membership books (pt. 4); the development of the German power economy from the beginning in the 19th century to the deregulation incl. the reorganization on the area of the former German Democratic republic. (GL) [German] Im ersten Teil des Buches (&apos;&apos;Stromwirtschaft im Umbruch&apos;&apos;) befasst sich Leuschner nun noch eingehender mit den politischen Hintergruenden der verfehlten Deregulierung. Er stellt fest, dass es die letzte Regierung unter Helmut Kohl war, die von Anfang an die Weichen falsch gestellt hat. Die Hauptverantwortung fuer die Nichtkorrektur des Fehlers und den fortgesetzten &apos;&apos;Schmusekurs mit den Konzernen&apos;&apos; sieht er aber bei den beiden folgenden rot-gruenen Bundesregierungen. Er verdeutlicht ferner, dass die erhoehten Belastungen durch Stromsteuer, EEG und KWK-Gesetz keine hinreichende Begruendung fuer den Strompreisanstieg liefern. Wo nicht minder wichtige Faktoren fuer den Preisanstieg liegen, veranschaulicht er im Kapitel ueber die &apos;&apos;Preisveredelung an der EEX&apos;&apos;. Im zweiten Teil, der die technischen Hintergruende und Risiken der Deregulierung behandelt, findet man jetzt auch ausfuehrlich die europaweite Netzstoerung beschrieben, die EON am 4. November 2006

  16. Fair Miles? The concept of &apos;food miles&apos; through a sustainable development lens

    Energy Technology Data Exchange (ETDEWEB)

    MacGregor, James; Vorley, Bill

    2006-10-15

    The concept of &apos;food miles&apos; presents an argument to buy goods which have travelled the shortest distance from farm to table, and to discriminate against long-haul transportation, especially air-freighted goods. The long-distance transport of food is associated with additional emissions due to increased transportation coupled with greater packaging, as well as a disconnection between the public and local farming. Furthermore, &apos;food miles&apos; encapsulates (and is at the vanguard of) the climate change debate in the UK. In light of growing international concern over the speed and scale of climate change, the concept of &apos;food miles&apos; has captured public attention and apparently is changing some consumers&apos; behaviour, although only around one-third of shoppers know of the concept.

  17. Radio-Tracking Studies of Adult Chinook Salmon and Steelhead to Determine the Effect of &apos;'Zero'&apos; River Flow During Water Storage at Little Goose Dam on the Lower Snake River, Final Report of Research.

    Energy Technology Data Exchange (ETDEWEB)

    Liscom, Kenneth

    1985-09-01

    Allowable instantaneous minimum river flows are established in the Columbia and Snake Rivers to ensure safe passage of anadromous fish during their migration to the spawning grounds. However, water storage during periods of low power demands (at night and on weekends) would be beneficial to the power producers. This storage procedure is called &apos;'zero'&apos; river flow and is now permitted on a limited basis when there are few if any actively migrating anadromous fish present in the river system. Requests were made to extend &apos;'zero'&apos; river flow into periods when anadromous fish were actively migrating and a study was initiated. Radio-tracking studies were conducted on the Snake River between Lower Monumental and Little Goose Dams to determine the effect of &apos;'zero'&apos; river flow on the migration of adult chinook salmon, Oncorhynchus tshawytscha, and steelhead, Salmo gairdneri. From July through September, 1981, a total of 258 steelhead and 32 chinook salmon were radio-tagged. The rate of migration was used to determine differences between test and control fish and a gamma distribution model was used to describe the migration rate for radio-tagged fish. Estimates of the parameters of the model were used to statistically compare &apos;'zero'&apos; flow and normal river flow conditions for the radio-tagged fish. The results show that the &apos;'zero'&apos; flow condition delays the migration of adult chinook salmon and steelhead; therefore, extended periods of &apos;'zero'&apos; flow to store water are not recommended when fish are actively migrating in the river system. 16 refs., 5 figs., 9 tabs.

  18. Technical and quality requisites (RTC&apos;s) &apos;a data architecture&apos;; Requisitos tecnicos y de calidad (RTC&apos; s) &apos;una arquitectura de datos&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Munoz G, R.; Jimenez R, B.; Ahedo A, S. [ININ, 52750 La Marquesa, Estado de Mexico (Mexico)]. e-mail: rmg@nuclear.inin.mx

    2007-07-01

    The RTC&apos;s are notes of technical and of quality requisites that the CLV emits, according to validity procedures of the Nuclear power station, to specify purchasing requisites of equipment with quality assurance category. This document contains a description of the computer program application RTC&apos;s, elaborated by the ININ for the CLV that allows to capture and to process the information of a database whose purpose is to facilitate the elaboration of the RTC&apos;s. Details of its development process are included. (Author)

  19. Germany steps up pressure on Fessenheim, but is the &apos;Energiewende&apos; all-knowing?

    Energy Technology Data Exchange (ETDEWEB)

    Shepherd, John [nuclear 24, Brighton (United Kingdom)

    2015-04-15

    Politics of course has more than its fair share of those who know everything and do their best not to let get the facts get in the way where inconvenient truths risk destroying their &apos;'Besserwisser'&apos; illusions. An example of this is a letter from Germany&apos;s federal environment minister Barbara Hendricks to her French counterpart Segolene Royal. The subject of the letter was the closure of France&apos;s Fessenheim nuclear power plant. The content of the letter appears to show that, not content with stamping out the use of nuclear energy in Germany and all the knowledge and industrial expertise that goes with it, Germany seems intent on imposing its point of view onto its neighbour. Hendricks acknowledges that any decisions relating to Fessenheim are for France alone as a sovereign nation. But, if that is the case, why bother to write the letter in the first place? In reply Royal, a prominent French Socialist, stresses French president Francois Hollande&apos;s desire to close Fessenheim before his term of office draws to a close. Royal also noted that it is up to France&apos;s nuclear operator, EDF, to &apos;&apos;define which reactors are removed from the grid&apos;&apos;. It is also amusing to read Royal&apos;s comment that the fact Fessenheim can be closed at all is largely due to the construction of replacement nuclear capacity at Flamanville, in northern France. Surely that irony could not have been lost on Germany&apos;s environment ministry.

  20. &apos;Micromorph&apos; solar cells; &apos;Mikromorphe&apos; Solarzellen, basierend auf amorphem und mikrokristallinem Silizium

    Energy Technology Data Exchange (ETDEWEB)

    Shah, A.

    2000-07-01

    This report on behalf of the Swiss Federal Office of Energy (SFOE) describes the achievements made in a project carried out at the Institute of Microelectronics (IMT) in Neuchatel, Switzerland. The project, whose goal was to demonstrate the potential of tandem cells consisting of a combination of micro-crystalline and amorphous solar cells, has spawned world-wide interest and also initiated much research into the use of VHF-GD (Very High Frequency Glow-discharge) techniques to deposit thin films. Individual results achieved at IMT including those from investigations into micro-crystalline structures and textures and their absorption enhancement effects, electronic transport, improvement of open-circuit voltage, deposition rates, patterning techniques and increasing stabilised efficiencies are listed. A first Micromorph 23.6 cm{sup 2} mini-module using an integrated electric series connection concept is mentioned and advances in the IMT&apos;s infrastructure and facilities are described.

  1. Targeted In Situ Gene Correction of Dysfunctional APOE Alleles to Produce Atheroprotective Plasma ApoE3 Protein

    Directory of Open Access Journals (Sweden)

    Ioannis Papaioannou

    2012-01-01

    Full Text Available Cardiovascular disease is the leading worldwide cause of death. Apolipoprotein E (ApoE is a 34-kDa circulating glycoprotein, secreted by the liver and macrophages with pleiotropic antiatherogenic functions and hence a candidate to treat hypercholesterolaemia and atherosclerosis. Here, we describe atheroprotective properties of ApoE, though also potential proatherogenic actions, and the prevalence of dysfunctional isoforms, outline conventional gene transfer strategies, and then focus on gene correction therapeutics that can repair defective APOE alleles. In particular, we discuss the possibility and potential benefit of applying in combination two technical advances to repair aberrant APOE genes: (i an engineered endonuclease to introduce a double-strand break (DSB in exon 4, which contains the common, but dysfunctional, ε2 and ε4 alleles; (ii an efficient and selectable template for homologous recombination (HR repair, namely, an adeno-associated viral (AAV vector, which harbours wild-type APOE sequence. This technology is applicable ex vivo, for example to target haematopoietic or induced pluripotent stem cells, and also for in vivo hepatic gene targeting. It is to be hoped that such emerging technology will eventually translate to patient therapy to reduce CVD risk.

  2. Comparative analysis of the tools &apos;Retrofit Advisor&apos; and &apos;EPIQR+&apos; - Final report; Analisi comparativa degli strumenti &apos;Retrofit Advisor&apos; e &apos;EPIQR+&apos; - Rapporto finale

    Energy Technology Data Exchange (ETDEWEB)

    Pittet, D.; Ghirlanda, L.

    2008-07-01

    This report represents the final phase of Swiss Federal Office of Energy project &apos;Strategy for long-term management of city-owned real estate - the case of the City Council of Chiasso&apos;. It contains a comparative analysis of two tools for the evaluation of the potential for retrofitting and refurbishment of buildings (Retrofit Advisor and Epiqr+). By applying the two tools in parallel, it was possible to compare information and data obtained, and also to obtain indications for the evaluation of the usability of the tools. To achieve this, five buildings in the territory of the city of Chiasso were submitted to the tools for analysis. The applications have highlighted the usability of each case study. The ease of use of Retrofit Advisor has allowed the evaluation of each proposed scenario; by using the same reference system, comparable data are obtained (at indication level) to support the choice of the intervention strategy on existing buildings. In addition to the analysis of the current status, the tool Retrofit Advisor supports a structure analysis over three intervention scenarios, namely reparation, renovation, rebuild. Data entry does not require advanced knowledge of construction work, and is limited to basic characteristics. The analysis performed through Epiqr+ is more rigorous, providing a specific and detailed diagnosis on the state of deterioration of each construction element, supported by a series of intervention suggestions. The Epiqr+ tool has furthermore allowed the evaluation (within a precision range of {+-}15%) the cost of reparation/renovation works, and also the thermal energy balance of each building, based on the characteristics of their envelops. On the basis of contents criteria and cost analysis, the approach has allowed the evaluation of different options for the improvement of the buildings, from simple reparation to total rebuild. Estimates are evaluated in terms of cost, of environmental impact, and, in the case of Retrofit

  3. [ApoE polymorphisms and dopaminergic replacement therapy in Parkinson's disease].

    Science.gov (United States)

    Cervantes-Arriaga, Amin; Rodríguez-Violante, Mayela; González-Latapí, Paulina; Dávila-Ortiz de Montellano, David José; Yescas, Petra; Alonso-Vilatela, Elisa

    2014-01-01

    INTRODUCCIÓN: se ha propuesto que la expresión de los polimorfismos de la apolipoproteína E (apoE) es un factor predisponente para el desarrollo temprano de psicosis en los pacientes con enfermedad de Parkinson. La relación entre el genotipo de la apoE y el desarrollo de complicaciones motoras es controvertida. El objetivo de esta investigación fue determinar la relación entre los polimorfismos de la apoE y su frecuencia alélica y el desarrollo de complicaciones secundarias al reemplazo dopaminérgico. MÉTODOS: se evaluaron 231 pacientes con diagnóstico de enfermedad de Parkinson. La presencia de complicaciones fue determinada por un neurólogo y se realizó la genotipificación de los polimorfismos de la apoE. Se utilizó la chi cuadrada para determinar la relación entre la presencia o ausencia de las complicaciones estudiadas y el genotipo de la apoE.

  4. Guideline for sampling and analysis of &apos;tars&apos; and particles in biomass producer gases

    Energy Technology Data Exchange (ETDEWEB)

    Neeft, J.P.A. [ECN Biomass, Petten (Netherlands); Knoef, H.A.M. [Biomass Technology Group BTG, Enschede (Netherlands); Zielke, U. [DTI Danish Technological Institute, Aarhus (Denmark); Sjoestroem, K. [KTH Kungl Tekniska Hoegskolan, Stockholm (Sweden); Hasler, P. [Verenum, Zuerich (Switzerland); Simell, P.A.; Suomalainen, M. [VTT Technical Research Centre of Finland, Espoo (Finland); Dorrington, M.A. [CRE Group, Cheltenham (United Kingdom); Greil, C. [Lurgi Envirotherm, Frankfurt am Main (Germany)

    2000-07-01

    The further development of a Guideline (formerly Protocol) for sampling and analysis of &apos;tars&apos; from biomass producer gases is reported. This Guideline is being developed as a project within the European Fifth Framework Programme with additional partners from Switzerland and North-America. In this paper an outline and the principle of the Guideline are given. The Guideline is based on isokinetic sampling of particles and &apos;tar&apos; from the main producer gas duct, particle filtration at high temperature, gas cooling in a liquid quench, &apos;tar&apos; absorption in a solvent at low temperatures, an optional backup adsorber, and flow measurement and control. The Guideline gives a definition for &apos;Gravimetric tar&apos; which is the &apos;tar&apos; number to be determined by the Guideline. Also, the Guideline gives procedures for compound analysis by gas chromatography - mass spectrometry (GC-MS) or gas chromatography - Flame Ionization Detector (GC-FID). Moreover, in this paper the major choices that were made to reach the first version of the Guideline are explained. Finally, at the end of the paper it is described how and on what time scale the development of the Guideline will be completed. The full text of the Guideline is available on the Internet at www.tarweb.net. 11 refs.

  5. Homocysteine and cognitive performance: modification by the ApoE genotype.

    Science.gov (United States)

    Elias, Merrill F; Robbins, Michael A; Budge, Marc M; Elias, Penelope K; Dore, Gregory A; Brennan, Suzanne L; Johnston, Carole; Nagy, Zsuzsanna

    2008-01-01

    We hypothesized that the magnitude of the association between plasma homocysteine concentration and cognitive performance is larger for ApoE-epsilon4 carriers than for non-carriers. Nine hundred eleven dementia-free and stroke-free subjects (59% women) from the Maine-Syracuse study (26-98 years old) were stratified into no-ApoE-epsilon4 (n=667) and ApoE-epsilon4 carrier (n=244) cohorts. Employing a cross-sectional design and multiple regression analyses, plasma homocysteine was related to multiple domains of cognitive performance within these cohorts. When unadjusted, and with adjustment for age, education, gender, ethnicity, and previous cognitive examinations, homocysteine concentrations were inversely related to cognitive performance within both ApoE cohorts, with higher magnitude of associations within the ApoE-epsilon4 cohort. With adjustment for cardiovascular disease risk factors, cardiovascular disease, and B-vitamin concentrations, the higher magnitude of associations between plasma homocysteine and cognitive performance within the ApoE-epsilon4 cohort relative to the no-ApoE-epsilon4 cohort persisted; but associations of plasma homocysteine and cognitive performance were attenuated and no longer significant within the no-ApoE-epsilon4 cohort. Presence of the ApoE-epsilon4 allele modifies the relation between plasma homocysteine and cognitive performance. PMID:18023533

  6. Environmental criminality; Criminalita&apos; ambientale. Un&apos;analisi economica

    Energy Technology Data Exchange (ETDEWEB)

    Percoco, M. [Milan Univ. Bocconi, Milan (Italy)

    2001-07-01

    The aim of this paper is to provide a theoretical rationale for environmental crimes. In particular, it is studied the illegal market of industrial hazardous waste management and it is presented a model with Government, industry and illegal dumping industry interacting to reach the equilibrium. Several policy actions are tested, in particular it is appraised a special Authority constitution to prevent and repress environmental crimes. Finally, following the theoretical findings of the model, are provided some comments to recent law proposals. [Italian] Lo scopo del presente saggio e&apos; quello di fornire una ratio dal punto di vista della teoria economica ai fenomeni di criminalita&apos; ambientale. Argomento principale e&apos; il mercato che viene a crearsi a seguito dello smaltimento illecito dei rifiuti industriali ed in tal senso si presenta un modello in cui Governo, industrie ed imprese per lo smaltimento illecito interagiscono sino a raggiungere un equilibrio. Sono altresi&apos; testate alcune possibilita&apos; d&apos;intervento da parte del Settore Pubblico per contrastare il fenomeno da cui si originano forti esternalita&apos; negative, quindi si studia la fattibilita&apos; di un&apos;apposita Autorita&apos; che coordini le azioni di prevenzione e repressione. Infine, in base ai risultati raggiunti nella sezione teorica, si propongono alcuni commenti alla recente proposta di legge in materia di reati ambientali.

  7. ApoE receptor 2 regulates synapse and dendritic spine formation.

    Directory of Open Access Journals (Sweden)

    Sonya B Dumanis

    Full Text Available BACKGROUND: Apolipoprotein E receptor 2 (ApoEr2 is a postsynaptic protein involved in long-term potentiation (LTP, learning, and memory through unknown mechanisms. We examined the biological effects of ApoEr2 on synapse and dendritic spine formation-processes critical for learning and memory. METHODOLOGY/PRINCIPAL FINDINGS: In a heterologous co-culture synapse assay, overexpression of ApoEr2 in COS7 cells significantly increased colocalization with synaptophysin in primary hippocampal neurons, suggesting that ApoEr2 promotes interaction with presynaptic structures. In primary neuronal cultures, overexpression of ApoEr2 increased dendritic spine density. Consistent with our in vitro findings, ApoEr2 knockout mice had decreased dendritic spine density in cortical layers II/III at 1 month of age. We also tested whether the interaction between ApoEr2 and its cytoplasmic adaptor proteins, specifically X11α and PSD-95, affected synapse and dendritic spine formation. X11α decreased cell surface levels of ApoEr2 along with synapse and dendritic spine density. In contrast, PSD-95 increased cell surface levels of ApoEr2 as well as synapse and dendritic spine density. CONCLUSIONS/SIGNIFICANCE: These results suggest that ApoEr2 plays important roles in structure and function of CNS synapses and dendritic spines, and that these roles are modulated by cytoplasmic adaptor proteins X11α and PSD-95.

  8. ACHEMA &apos;85: Process control systems

    Energy Technology Data Exchange (ETDEWEB)

    Rosskopf, E.

    1985-01-01

    The strategy obviously adopted by the well-established manufacturers is to offer &apos;easy-to-handle&apos; equipment to gain new customers, and there is a variety of new compact systems or personal computers being put on the market. The changes and improvements within the processing sector proceed more or less in silence; high-capacity storage devices and multiprocessor configurations are obtainable at a moderate price, offering a greater variety of basic functions and enhanced control possibilities. Redundancy problems are handled with greater flexibility, and batch programs are advancing. Data communication has become a common feature, transmission speed and bus length have been improved. Important improvements have been made with regard to data display; even medium-sized equipment now offer the possibility of making dynamic flow-sheets and reserving space for process history display, and the hierarchy of displays has been considerably simplified. The user software also has been made more easy, &apos;fill-in-the-blancs&apos; is the prevailing motto for dialog configurations, and such big terms as process computer&apos; or &apos;programming skill&apos; are passing into oblivion.

  9. Solar campaign &apos;Solar - na klar.&apos; (solar - of course). Final report; Solarkampagne &apos;Solar - na klar.&apos;. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Gege, M.; Kleinsteuber, A.; Krabbe, P.; Kroeger, P.; Maschke, K.; Niedert, S.; Schindelmann, F.; Thunert, A.; Weinberg, H.

    2002-03-18

    The German market for technically matured solar-thermal systems for generating hot water is growing by 20 per cent per year, with some deviations due to incentive policies. This growth can be and is planned to be increased systematically, with following goals: A practical contribution to the Federal Government&apos;s efforts to achieve the goals regarding the protection of climate; creating future-oriented jobs; supporting ecologically sustainable ways of life and models of consumption by convincing the consumers and other target groups of the fact that it makes sense already today to start utilizing solar energy and to invest also on private basis. These targets are expected to be set up with the help of a three-year mass campaign (1999 until 2001), i.e. the campaign called &apos;&apos;Solar - na klar.&apos;&apos; (solar - of course). [German] Der deutsche Markt fuer die technisch ausgereiften solarthermischen Anlagen zur Warmwassererzeugung waechst mit ca. 20% p.a., mit foerderpolitisch bedingten Schwankungen. Dieses Wachstum kann und soll systematisch gesteigert werden, mit folgenden Zielsetzungen: Praktischer Beitrag zur Erreichung der Klimaschutzziele der Bundesregierung; Schaffung zukunftsorientierter Arbeitsplaetze; Befoerderung oekologisch nachhaltiger Lebensstile und Konsummuster durch die Ueberzeugung der Verbraucher und weiterer Zielgruppen, dass es heute bereits sinnvoll ist, in die Nutzung der Solarenergie konkret einzusteigen und auch privat zu investieren. Diese Ziele sollen mithilfe einer auf drei Jahre angelegten Breitenkampagne (1999 bis 2001), d.h. der Kampagne &apos;Solar - na klar.&apos; erfolgen. (orig.)

  10. LIMITS ON QUAOAR&apos;S ATMOSPHERE

    Energy Technology Data Exchange (ETDEWEB)

    Fraser, Wesley C.; Gwyn, Stephen; Kavelaars, J. J. [Herzberg Institute of Astrophysics, 5071 W. Saanich Rd. Victoria, BCV9E 2E7 (Canada); Trujillo, Chad; Stephens, Andrew W. [Gemini Observatory, Northern Operations Center, 670 N A' ohoku Place, Hilo, HI 96720 (United States); Gimeno, German [Gemini Observatory, Southern Operations Center, c/o AURA, Casilla 603, La Serena (Chile); Brown, Michael E., E-mail: wesley.fraser@nrc.ca [California Institute of Technology, Division of Geological and Planetary Sciences, 1200 E. California Blvd., Pasadena, CA 91101 (United States)

    2013-09-10

    Here we present high cadence photometry taken by the Acquisition Camera on Gemini South, of a close passage by the {approx}540 km radius Kuiper belt object, (50000) Quaoar, of a r&apos; = 20.2 background star. Observations before and after the event show that the apparent impact parameter of the event was 0.&apos;&apos;019 {+-} 0.&apos;&apos;004, corresponding to a close approach of 580 {+-} 120 km to the center of Quaoar. No signatures of occultation by either Quaoar&apos;s limb or its potential atmosphere are detectable in the relative photometry of Quaoar and the target star, which were unresolved during closest approach. From this photometry we are able to put constraints on any potential atmosphere Quaoar might have. Using a Markov chain Monte Carlo and likelihood approach, we place pressure upper limits on sublimation supported, isothermal atmospheres of pure N{sub 2}, CO, and CH{sub 4}. For N{sub 2} and CO, the upper limit surface pressures are 1 and 0.7 {mu}bar, respectively. The surface temperature required for such low sublimation pressures is {approx}33 K, much lower than Quaoar&apos;s mean temperature of {approx}44 K measured by others. We conclude that Quaoar cannot have an isothermal N{sub 2} or CO atmosphere. We cannot eliminate the possibility of a CH{sub 4} atmosphere, but place upper surface pressure and mean temperature limits of {approx}138 nbar and {approx}44 K, respectively.

  11. Extreme waves at FINO 1 research platform caused by storm &apos;'Tilo'&apos; on 9 November 2007; FINO 1: Bericht zur Wetterlage und Seegangssituation waehrend des Orkans TILO am 9. November 2007

    Energy Technology Data Exchange (ETDEWEB)

    Outzen, O.; Herklotz, K.; Heinrich, H. [BSH (Germany); Lefebvre, C. [DWD (Germany)

    2008-08-15

    On 8 and 9 November 2007, the low-pressure system &apos;'Tilo'&apos;, with maximum wind speeds of 120 km/h (12 Bft), crossed the German Bight. In the afternoon of 9 November, the low caused waves with significant wave heights in excess of 10 m, corresponding to a maximum wave height of 17 - 18 m, wave periods of about 15 s and wave lengths of more than 220 m, which constitute extreme values in this sea area. On the FINO 1 research platform, the working platform was damaged at a height of 15 m above chart datum, repeating the occurrence of 1 November 2006 when the low-pressure system &apos;'Britta'&apos; had caused damage. Also this time, the highest wave crests reached nearly 45 m above ground, which is about 1.5 m above the level of the working platform. A storm and wave event of this magnitude in two consecutive years is an exceptional occurrence. The research platform FINO 1 is located at position N 54 0.86&apos;E 6 35.26&apos;, about 45 km north of Borkum. FINO 1 is used to make comprehensive physical, hydrological, chemical and biological measurements in preparation for the erection of offshore wind farms. Storm &apos;'Tilo'&apos; of 9 November 2007 again caused damage to the working platform of FINO 1, only a short time after the damage caused by storm &apos;'Britta'&apos; on 1 November 2006 had been repaired. Among other damage, solid wooden planks several centimetres thick were broken loose from their mountings 15 m above chart datum and destroyed by wash of the sea (Fig. 1). Exactly one year earlier the tempest &apos;'Britta'&apos; had caused severe damage, e.g. metal railings were bent and broken, and screw-fastened floor gratings were torn from their mountings. (orig.)

  12. Report of working committee 10 &apos;&apos;gas and developing / transitional economy countries&apos;&apos;; Rapport du comite de travail 10 &apos;&apos;pays gaziers en voie de developpement et en transition economique&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Hached, A.

    2000-07-01

    This report deals with the works undertaken by working committee 10 during the 1997 - 2000 Triennium. The objective set by the IGU consisted in studying the generic thema in gas markets development for the less developed countries, in the developing countries with intermediate revenue as well as in the transitional economy countries. The first study group devoted his works to the problematic analysis of natural gas in the less developed countries, those where the GNP per capita is very low and the internal markets of which are little or non dynamic. This analysis has been developed in a certain number of countries rather representative of their respective region: Angola, Cameroon and Cote d&apos;Ivoire for sub-Saharian Africa, Bangladesh and Vietnam for Asia. The second study group analysed the changes in transitional economy countries (Baltic, countries in Central Europe and Ukraine) and their different consequences on gas industry. These countries apply gas industry reforms which are not implemented at the same rate more especially as they belong to a huge and very contrasted geographic region. The third study group devoted his works to the analysis of intensified conditions in the use of natural gas in the developing countries with intermediate revenue. He also examined the feasibility of an economic development in gas distribution networks in large cities. Two important issues focused his attention: financing and technology transfer. (author)

  13. Alaska&apos;s renewable energy potential.

    Energy Technology Data Exchange (ETDEWEB)

    2009-02-01

    This paper delivers a brief survey of renewable energy technologies applicable to Alaska&apos;s climate, latitude, geography, and geology. We first identify Alaska&apos;s natural renewable energy resources and which renewable energy technologies would be most productive. e survey the current state of renewable energy technologies and research efforts within the U.S. and, where appropriate, internationally. We also present information on the current state of Alaska&apos;s renewable energy assets, incentives, and commercial enterprises. Finally, we escribe places where research efforts at Sandia National Laboratories could assist the state of Alaska with its renewable energy technology investment efforts.

  14. Characterization of a novel two dimensional diode array the &apos;&apos;magic plate&apos;&apos; as a radiation detector for radiation therapy treatment

    Energy Technology Data Exchange (ETDEWEB)

    Wong, J. H. D.; Fuduli, I.; Carolan, M.; Petasecca, M.; Lerch, M. L. F.; Perevertaylo, V. L.; Metcalfe, P.; Rosenfeld, A. B. [Centre for Medical Radiation Physics, University of Wollongong, NSW 2522, Australia and Faculty of Medicine, University of Malaya, Kuala Lumpur 50603 (Malaysia); Centre for Medical Radiation Physics, University of Wollongong, NSW 2522 (Australia); Illawarra Cancer Care Centre, Wollongong Hospital, NSW 2500, Australia and Centre for Medical Radiation Physics, University of Wollongong, NSW 2522 (Australia); Centre for Medical Radiation Physics, University of Wollongong, NSW 2522 (Australia); SPA BIT, Kiev, Ukraine, 04136 (Ukraine); Centre for Medical Radiation Physics, University of Wollongong, NSW 2522 (Australia)

    2012-05-15

    Purpose: Intensity modulated radiation therapy (IMRT) utilizes the technology of multileaf collimators to deliver highly modulated and complex radiation treatment. Dosimetric verification of the IMRT treatment requires the verification of the delivered dose distribution. Two dimensional ion chamber or diode arrays are gaining popularity as a dosimeter of choice due to their real time feedback compared to film dosimetry. This paper describes the characterization of a novel 2D diode array, which has been named the &apos;&apos;magic plate&apos;&apos; (MP). It was designed to function as a 2D transmission detector as well as a planar detector for dose distribution measurements in a solid water phantom for the dosimetric verification of IMRT treatment delivery. Methods: The prototype MP is an 11 x 11 detector array based on thin (50 {mu}m) epitaxial diode technology mounted on a 0.6 mm thick Kapton substrate using a proprietary &apos;'drop-in'&apos; technology developed by the Centre for Medical Radiation Physics, University of Wollongong. A full characterization of the detector was performed, including radiation damage study, dose per pulse effect, percent depth dose comparison with CC13 ion chamber and build up characteristics with a parallel plane ion chamber measurements, dose linearity, energy response and angular response. Results: Postirradiated magic plate diodes showed a reproducibility of 2.1%. The MP dose per pulse response decreased at higher dose rates while at lower dose rates the MP appears to be dose rate independent. The depth dose measurement of the MP agrees with ion chamber depth dose measurements to within 0.7% while dose linearity was excellent. MP showed angular response dependency due to the anisotropy of the silicon diode with the maximum variation in angular response of 10.8% at gantry angle 180 deg. Angular dependence was within 3.5% for the gantry angles {+-} 75 deg. The field size dependence of the MP at isocenter agrees with ion

  15. &apos;&apos;After the Genome 5 Conference&apos;&apos; to be held October 6-10, 1999 in Jackson Hole, Wyoming

    Energy Technology Data Exchange (ETDEWEB)

    Roger Brent

    1999-10-06

    OAK B139 The postgenomic era is arriving faster than anyone had imagined--sometime during 2000 we&apos;ll have a large fraction of the human genome sequence. Heretofore, our understanding of function has come from non-industrial experiments whose conclusions were largely framed in human language. The advent of large amounts of sequence data, and of &apos;&apos;functional genomic&apos;&apos; data types such as mRNA expression data, have changed this picture. These data share the feature that individual observations and measurements are typically relatively low value adding. Such data is now being generated so rapidly that the amount of information contained in it will surpass the amount of biological information collected by traditional means. It is tantalizing to envision using genomic information to create a quantitative biology with a very strong data component. Unfortunately, we are very early in our understanding of how to &apos;&apos;compute on&apos;&apos; genomic information so as to extract biological knowledge from i t. In fact, some current efforts to come to grips with genomic information often resemble a computer savvy library science, where the most important issues concern categories, classification schemes, and information retrieval. When exploring new libraries, a measure of cataloging and inventory is surely inevitable. However, at some point we will need to move from library science to scholarship.We would like to achieve a quantitative and predictive understanding of biological function. We realize that making the bridge from knowledge of systems to the sets of abstractions that constitute computable entities is not easy. The After the Genome meetings were started in 1995 to help the biological community think about and prepare for the changes in biological research in the face of the oncoming flow of genomic information. The term &apos;&apos;After the Genome&apos;&apos; refers to a future in which complete inventories of the gene products of

  16. The frequency of down&apos;s syndrome in the city of Ozyorsk located near the nuclear complex &apos;'Mayak'&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Petrushkina, N.P.; Okatenko, P.V.; Kabirova, N.R.; Koshurnikova, N.A. [Branch No 1 of the State Research Center, Ozyorsk (Russian Federation). Biophysics Inst.

    2000-05-01

    The aim of the study is to assess the frequency of Down&apos;s syndrome (DS) among newborns in the city of Ozyorsk located near the nuclear complex Mayak&apos;&apos;. The study has been conducted on the basis of the cohort, which includes 18,499 children born in Ozyorsk in 1974-1988. Information on cases of DS has been abstracted from newborn records at the city maternity hospital. The frequency of DS in Ozyorsk is 1.4 cases per 1,000 newborns. According to some published data, the population frequency of this syndrome is 1.25-1.42 cases per 1,000 newborns. The frequency of DS among children whose parents were occupationally exposed to radiation has been studied. The cohort has been divided into two subcohorts based on whether or not parents worked at Mayak. In 5,303 children either one or both parents worked at Mayak. The comparison group includes 13,196 children whose parents never worked at Mayak. In the children, whose parents worked at Mayak, the frequency of DS is 1.32 cases per 1000, and in the comparison group - 1.44 cases per 1000 (the difference is not statistically significant). Parental radiation doses by the time of conception of children with DS are in the range from 0.65 to 10.31 cSv. Our data confirm the effect of maternal age on the frequency of DS. The frequency of DS in children born to mother under the age of 30 is 0.94 per 1,000 and in children born to mothers older than 30 years - 3.87 per 1,000. So the frequency of DS among children born in the city located near the nuclear complex does not exceed the spontaneous level. No association has been detected between the frequency of DS and preconception parental radiation exposure. The effect of maternal age has been confirmed. (author)

  17. Energy from waste - a synthesis report. A review of research projects in the Swedish Energy Agency&apos;s programme &apos;Energy from waste&apos; 2000-2003; Energi ur avfall - syntesrapport. En sammanstaellning av forskningsprojekten bedrivna inom ramen foer Energimyndighetens program &apos;Energi ur avfall&apos; aar 2000-2003

    Energy Technology Data Exchange (ETDEWEB)

    Karlsson, Anna [Linkoeping Univ. (SE). Dept. of Water and Environmental Studies] (comp.)

    2005-11-15

    This review describes the projects active during the years 2000-2003. Types and volumes of waste in Sweden: Consumption waste is waste from use of goods and services. Examples of consumption waste are household waste, non-branch specific industrial waste, building and demolition waste, park and garden waste, sludges from purification plants and private sewage. Production waste is generated in industry and agriculture. In 1998 Statistics Sweden performed a mapping of waste volumes and management in Sweden. This year 9.805 M tons consumption waste and 19.680 Mton production waste (excluding mine wastes) were generated. Since then, waste volumes have increased with 2-3%/year. Local communities, public sector and private waste management companies handled 7.7 M tons of waste for biologic processing, incineration with heat recovery or disposal, of these, 5.7 M tons are appreciated to have been combustible and other organic waste. In the programme, the subject &apos;System studies&apos; comprised three projects: &apos;Systems analysis of energy recovery from waste&apos;, &apos;Robust strategies for recovery of energy from waste&apos;, and &apos;Waste as fuel - An integrated study of the energy- and waste management system&apos;. The subject area &apos;Incineration and gasification&apos; included the following projects: &apos;Catalytic combustion of gasified waste&apos;, &apos;Gas cleaning in energy recovery from waste using new technology&apos;, &apos;Catalytic decomposition of chars in gasified waste&apos;, &apos;Cocombustion of biofuel and sorted household waste - Full scale trials Bjurholm&apos;, &apos;Incineration of waste - a review of research and development work&apos;, &apos;Energy from waste through gasification and direct combustion of the gas&apos;, &apos;Carbonate stabilization of RDF-ashes&apos;, &apos;Stabilization of ashes from incineration of waste in fluidized bed boilers&apos;, &apos;Dioxins and other environmental toxins i fly ashes and slags from

  18. Whose education affects a child&apos;s nutritional status? From parents&apos; to household&apos;s education

    Directory of Open Access Journals (Sweden)

    Francesco Burchi

    2012-11-01

    Full Text Available BACKGROUND The paper engages in the ongoing debate regarding the determinants of child nutrition in developing countries and stresses the potential contribution of the education of household members other than the child&apos;s parents. OBJECTIVE The aim of the paper is threefold: (1 to verify whether there is evidence of the key role of parents&apos; education for children&apos;s nutrition; (2 to explore the possible presence of the externalities generated by the literacy of household members different from the child&apos;s parents; (3 to test whether there is difference in the influence of these variables on the two indicators of child nutrition, child height-for-age and weight-for-age. METHODS The determinants of child nutrition were analyzed by estimating a series of econometric models through OLS regressions applied on data from the 2003 DHS survey in Mozambique. By means of seemingly unrelated regression together with formal testing we compared the impact of the covariates on the two outcomes. RESULTS In line with previous studies, we find that one year of mother&apos;s education increases their children&apos;s height-for-age and weight-for-age z-scores by nearly 0.025 and 0.015. The presence of another literate household member has a significant, though limited, effect on child height while it has no influence on child weight. Lastly, there is no statistically significant difference in the effect of parents&apos; education on the two indicators while our measure of proximate literacy has a significantly larger impact on child height. CONCLUSIONS These findings should orient policy-makers toward income-augmenting and education-enhancing policies: the importance of non-parents&apos; literacy opens a further space for investment in education.

  19. HERSCHEL&apos;s &apos;&apos;COLD DEBRIS DISKS&apos;&apos;: BACKGROUND GALAXIES OR QUIESCENT RIMS OF PLANETARY SYSTEMS?

    Energy Technology Data Exchange (ETDEWEB)

    Krivov, A. V.; Loehne, T.; Mutschke, H.; Neuhaeuser, R. [Astrophysikalisches Institut und Universitaetssternwarte, Friedrich-Schiller-Universitaet Jena, Schillergaesschen 2-3, D-07745 Jena (Germany); Eiroa, C.; Marshall, J. P.; Mustill, A. J. [Departamento de Fisica Teorica, Facultad de Ciencias, Universidad Autonoma de Madrid, Cantoblanco, E-28049 Madrid (Spain); Montesinos, B. [Departamento de Astrofisica, Centro de Astrobiologia (CAB, CSIC-INTA), ESAC Campus, P.O. Box 78, E-28691 Villanueva de la Canada, Madrid (Spain); Del Burgo, C. [Instituto Nacional de Astrofisica, Optica y Electronica (INAOE), Apartado Postal 51 y 216, 72000 Puebla, Pue. (Mexico); Absil, O. [Institut d' Astrophysique et de Geophysique, Universite de Liege, Allee du 6 Aout 17, B-4000 Liege (Belgium); Ardila, D. [NASA Herschel Science Center, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Augereau, J.-C.; Ertel, S.; Lebreton, J. [UJF-Grenoble 1/CNRS-INSU, Institut de Planetologie et d' Astrophysique de Grenoble (IPAG), UMR 5274, F-38041 Grenoble (France); Bayo, A. [European Southern Observatory, Alonso de Cordova 3107, Vitacura, Santiago (Chile); Bryden, G. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States); Danchi, W. [NASA Goddard Space Flight Center, Exoplanets and Stellar Astrophysics, Code 667, Greenbelt, MD 20771 (United States); Liseau, R. [Department of Earth and Space Sciences, Chalmers University of Technology, Onsala Space Observatory, SE-43992, Onsala (Sweden); Mora, A. [ESA-ESAC Gaia SOC, P.O. Box 78, E-28691 Villanueva de la Canada, Madrid (Spain); Pilbratt, G. L., E-mail: krivov@astro.uni-jena.de [ESA Astrophysics and Fundamental Physics Missions Division, ESTEC/SRE-SA, Keplerlaan 1, 2201 AZ Noordwijk (Netherlands); and others

    2013-07-20

    than a few kilometers in size. If larger planetesimals were present, then they would stir the disk, triggering a collisional cascade and thus causing production of small debris, which is not seen. Thus, planetesimal formation, at least in the outer regions of the systems, has stopped before &apos;cometary&apos; or &apos;asteroidal&apos; sizes were reached.

  20. Assessment report of research and development activities FY2014. Activity: &apos;Advanced science research&apos; (Final report)

    International Nuclear Information System (INIS)

    Japan Atomic Energy Agency (hereinafter referred to as &apos;JAEA&apos;) consulted an assessment committee, &apos;Evaluation Committee of Research Activities for Advanced Science Research&apos; (hereinafter referred to as &apos;Committee&apos;) for final evaluation and prior assessment of &apos;Advanced Science Research,&apos; in accordance with &apos;General Guideline for the Evaluation of Government Research and Development (R and D) Activities&apos; by Cabinet Office, Government of Japan, &apos;Guideline for Evaluation of R and D in Ministry of Education, Culture, Sports, Science and Technology&apos; and &apos;Regulation on Conduct for Evaluation of R and D Activities&apos; by JAEA. In response to the JAEA&apos;s request, the Committee assessed the research programs and activities of the Advanced Science Research Center (hereinafter referred to as &apos;ASRC&apos;) for the period of five years from April 2010 and the research programs from April 2015. The Committee evaluated the management and the research programs of the ASRC based on the explanatory documents prepared by the ASRC and the oral presentations with questions-and-answers by the Director and the research group leaders. This report summarizes the results of the assessment by the Committee with the Committee report attached. (author)

  1. Selective suppression of adipose tissue apoE expression impacts systemic metabolic phenotype and adipose tissue inflammation.

    Science.gov (United States)

    Huang, Zhi H; Reardon, Catherine A; Getz, Godfrey S; Maeda, Nobuyo; Mazzone, Theodore

    2015-02-01

    apoE is a multi-functional protein expressed in several cell types and in several organs. It is highly expressed in adipose tissue, where it is important for modulating adipocyte lipid flux and gene expression in isolated adipocytes. In order to investigate a potential systemic role for apoE that is produced in adipose tissue, mice were generated with selective suppression of adipose tissue apoE expression and normal circulating apoE levels. These mice had less adipose tissue with smaller adipocytes containing fewer lipids, but no change in adipocyte number compared with control mice. Adipocyte TG synthesis in the presence of apoE-containing VLDL was markedly impaired. Adipocyte caveolin and leptin gene expression were reduced, but adiponectin, PGC-1, and CPT-1 gene expression were increased. Mice with selective suppression of adipose tissue apoE had lower fasting lipid, insulin, and glucose levels, and glucose and insulin tolerance tests were consistent with increased insulin sensitivity. Lipid storage in muscle, heart, and liver was significantly reduced. Adipose tissue macrophage inflammatory activation was markedly diminished with suppression of adipose tissue apoE expression. Our results establish a novel effect of adipose tissue apoE expression, distinct from circulating apoE, on systemic substrate metabolism and adipose tissue inflammatory state.

  2. Cerebral glucose metabolism in Wernicke&apos;s, Broca&apos;s, and conduction aphasia

    Energy Technology Data Exchange (ETDEWEB)

    Metter, E.J.; Kempler, D.; Jackson, C.; Hanson, W.R.; Mazziotta, J.C.; Phelps, M.E.

    1989-01-01

    Cerebral glucose metabolism was evaluated in patients with either Wernicke&apos;s (N = 7), Broca&apos;s (N = 11), or conduction (N = 10) aphasia using /sup 18/F-2-fluoro-2-deoxy-D-glucose with positron emission tomography. The three aphasic syndromes differed in the degree of left-to-right frontal metabolic asymmetry, with Broca&apos;s aphasia showing severe asymmetry and Wernicke&apos;s aphasia mild-to-moderate metabolic asymmetry, while patients with conduction aphasia were metabolically symmetric. On the other hand, the three syndromes showed the same degree of metabolic decline in the left temporal region. The parietal region appeared to separate conduction aphasia from both Broca&apos;s and Wernicke&apos;s aphasias. Common aphasic features in the three syndromes appear to be due to common changes in the temporal region, while unique features were associated with frontal and parietal metabolic differences.

  3. Why the risks of nuclear are &apos;greatly exaggerated&apos;

    International Nuclear Information System (INIS)

    Environmentalist Bruno Comby, founder of the lobby group Environmentalists For Nuclear, says the anti-nuclear lobby has transformed a very safe energy source into a huge problem by distorting reality. He spoke to NucNet&apos;s Lubomir Mitev about risk, radiation and the &apos;problem&apos; of nuclear waste. Bruno Comby trained as a nuclear engineer at the Ecole Polytechnique and Ecole Nationale Superieure de Techniques Avancees de Paris. He established Environmentalists For Nuclear in 1996.

  4. Odor identification in aging and dementia : Influences of cognition and the ApoE gene

    OpenAIRE

    Olofsson, Jonas

    2008-01-01

    Olfactory function is impaired in aging and dementia. The general aim of this thesis was to identify variables that predict olfactory function and dysfunction (assessed with an odor identification test) in middle-aged and elderly adults. The thesis investigated whether odor identification performance was associated with demographic variables, cognitive function, the ApoE gene, dementia, and other health-related variables. The ApoE-ε4 allele is associated with cognitive impairment and Alzheime...

  5. &apos;Advancement of KHPS to DOE TRL 7/8&apos; Project - Final Technical Report

    Energy Technology Data Exchange (ETDEWEB)

    Adonizio, Mary Ann [Verdant Power Inc., New York, NY (United States); Corren, Dean [Verdant Power Inc., New York, NY (United States); Smith, Ron [Verdant Power Inc., New York, NY (United States); Colby, Jonathan [Verdant Power Inc., New York, NY (United States); Hernandez, Aaron [Verdant Power Inc., New York, NY (United States)

    2016-04-08

    Final Report describing activities performed under the &apos;Advancement of the KHPS to DOE TRL 7/8&apos; project, including the development of critical component test protocols, testing and analysis of the Gen5 KHPS main shaft seal, and continuing compliance work on approved operational environmental monitoring plans in anticipation of KHPS turbine installation at Verdant Power&apos;s Roosevelt Island Tidal Energy (RITE) Project site in New York, NY.

  6. More innovation for less money. &apos;Solar Decathlon Europa 2012&apos; presents feasible and low-cost solar architecture; Mehr Innovation fuer weniger Geld. Der &apos;Solar Decathlon Europa 2012&apos; ueberzeugt mit machbarer und preisguenstiger Solararchitektur

    Energy Technology Data Exchange (ETDEWEB)

    Franco de Saravia, Cristina

    2012-11-15

    In September 2012, the &apos;Solar Decathlon Europe 2012&apos; again took place in Madrid. The &apos;Solar Decathlon Europe&apos; is an architecture competition of universities. 19 teams from twelve countries had to pass ten tests to convince the public and the jury of their concepts for sustainable living. The eleventh test was the factor of surprise.

  7. Definitierapport &apos;Graadmeters straling in Milieubalans/Milieuverkenning"

    NARCIS (Netherlands)

    Pruppers MJM; Aldenkamp FJ; Blaauboer RO; Eggink GJ; Kwakman PJM; LSO

    1994-01-01

    For use in future versions of the integrative reports called Milieubalans (&apos;environmental balance&apos;) and Milieuverkenning (&apos;environmental outlook&apos;) RIVM has chosen to present an overview of environmental issues, especially those related to actual and future environmental policies

  8. EPR: the nuclear impasse; EPR: l&apos;impasse nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Marillier, F. [Association Ecologiste Greenpeace (France)

    2008-07-01

    The questions relative to the climatic change constitute crucial challenges for the next ten years. In this context the author aims to show how the EPR project illustrates the nuclear french &apos;'autism'&apos;. He presents and analyzes the international and environmental impacts of this obsolete technology, as a project useless and dangerous. (A.L.B.)

  9. Benzene Synthesis for &apos;&apos;14C Measurements and Evaluation of Uncertainty in Mollusk Shells; Sintesis de Benceno para la Determinacion de C&apos;&apos;14 y Evaluacion de su Incertidumbre en Conchas de Moluscos

    Energy Technology Data Exchange (ETDEWEB)

    Romero del Hombrebueno, B.; Simon, M. A.; Larena, P.

    2002-07-01

    This work describes the method and instrumentation used by Environmental Isotopes laboratory of the CIEMAT Analytical Chemistry Laboratory (DIAE) for the synthesis of benzene from carbonates of mollusk shells and the liquid scintillation counting of &apos;&apos;14C for radiocarbon dating in these samples. The usefulness of mollusk shells for &apos;&apos;14 C dating are considered. (Author)

  10. Spectacular energy technology: Panorama-Sauna Holzweiler. KfW funds indoor swimming pools as &apos;process heat&apos;; Energetisch spektakulaer: Panorama-Sauna Holzweiler. KfW foerdert Schwimmbaeder als &apos;Prozesswaerme&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Meissner, Rolf

    2008-11-15

    The &apos;'Panorama-Sauna'&apos; at Grafschaft is a big indoor swimming pool and Sauna centre in a rural region not far from Cologne and Koblenz. The charm of this spectacular solar project is in its minimalism. Conventional solar thermal power systems, in contrast, tend to be complex and prone to failure. (orig.)

  11. Infants&apos; Discrimination of Female Singing Voices

    Science.gov (United States)

    Costa-Giomi, Eugenia; Davila, Yvonne

    2014-01-01

    There&apos;s extensive research on infant&apos;s discrimination of speaking voices but few studies have focused on infant&apos;s discrimination of singing voices. Most investigations on infants&apos; perception of timbre in music have been based on instrumental sounds. We completed an experiment with 7-and 13-month-olds (n = 16 and n = 17…

  12. Reconstruction of surface morphology from coherent scattering of &apos;'white'&apos; synchrotron radiation in hard X-ray regime

    Energy Technology Data Exchange (ETDEWEB)

    Sant, Tushar

    2009-07-01

    Energy Dispersive Reflectometry (EDR) beamline at BESSY II provides &apos;'white'&apos; X-rays in the useful energy range of 5apos;'trivial'&apos; samples to determine the so called apparatus function. In addition I measured coherent reflectivity maps from thin film of highly scattering material of Pt with high atom number, Z=78 and patterned semiconducting surface like a GaAs surface grating which provides a certain periodicity in the measured scattering intensity. Finally I measured the surface speckles from a spatially confined Si wafer under the constraint that the size of the sample is smaller than the footprint of the incoming beam at the sample position. To reconstruct surface morphology from coherent reflectivity data is a typical inverse problem. Conventional phase retrieval algorithms like Gerchberg-Saxton (GS) algorithm, error reduction (ER) algorithm, hybrid input-output (HIO) algorithm are used in earlier work by other authors. I modified the conventional GS algorithm and ER algorithm which takes into account the additional Fresnel propagator term and also the illumination function at the sample position. I tested the modified algorithm successfully for a model surface in the form of a surface grating. I used the modified algorithm to reconstruct surface morphology from various static speckle measurements I performed at EDR beamline. The surface profiles reconstructed for different samples from the data at different energies (below the critical energy for the material at a particular incident angle) show almost the same roughness behavior for surface height with mean roughness of {proportional_to}1 nm. With the static speckle data I measured I could retrieve a one-dimensional picture of the sample surface with spatial

  13. First forum &apos;'BISE'&apos; for: the intelligent energy in the municipalities and the new member states, of candidate countries and western Balkans; Premier forum &apos;'BISE'&apos; pour: l&apos;energie intelligente dans les minicipalites des nouveaux etats membres, des pays candidats et des Balkans occidentaux

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    The european commission and the european association of municipalities (Energie Cites) established a permanent &apos;&apos;Intelligent Energy Forum of European Municipalities&apos;&apos; (named BISE Forum) as form of periodical information exchange between municipal associations and other potential partners in Europe. In the framework of the reduction of the sustainable energy gap between the Central and Eastern European Countries and the most advanced energy-efficient EU 15 countries, the aim of this forum is to promote the creation of national energy cities networks, to integrate the initiatives and networks at an European scale and to promote the idea of an European Emergency Plan in order to improve energy efficiency in Eastern European Countries as quickly as possible. This document presents the proceedings and a selection of cases studies linked to the first BISE Forum. (A.L.B.)

  14. &apos;'Hair-on-end'&apos; skull induced by long-term G-CSF treatment in severe congenital neutropenia

    Energy Technology Data Exchange (ETDEWEB)

    Albert, Michael H. [Dr. von Haunersches Kinderspital, Department of Haematology/Oncology, Munich (Germany); Notheis, Gundula; Wintergerst, Uwe [Dr. von Haunersches Kinderspital, Department of Infection/Immunity, Munich (Germany); Born, Christine [Klinikum Innenstadt, General Radiology, Munich (Germany); Schneider, Karl [Dr. von Haunersches Kinderspital, Department of Pediatric Radiology, Munich (Germany)

    2007-02-15

    &apos;'Hair-on-end'&apos; skull changes are typically seen in individuals suffering from thalassaemia. They are induced by widening of the diploic space due to marrow expansion that is a consequence of ineffective and excessive erythropoiesis. We present a child with severe congenital neutropenia who exhibited the typical hair-on-end sign on plain skull radiographs and MRI. In this patient the skull changes were very likely induced by the expansion of white blood cell precursors induced by long-term daily injections of recombinant human granulocyte colony stimulating factor (G-CSF) to treat his confounding disease. This case report is the first description of hair-on-end changes associated with the use of G-CSF. (orig.)

  15. Industrial robots in car construction - on the way to &apos;automized Fordism&apos;. Industrieroboter im Automobilbau - auf dem Sprung zum &apos;automatisierten Fordismus&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Malsch, T.; Dohse, K.; Juergens, U.

    1984-05-01

    Since the end of the 70s international car manufacturers have adopted a new strategy with regard to the use of robots. Companies all over the world - headed by the Japanese car makers - decided not to &apos;dabble&apos; with industrial robots anymore but to &apos;blockbust&apos; with them. Complete production processes were literally turned inside out by the compact use of robots in waves, and adjusted to the requirements of flexible manufacturing technology. To deal with the characteristic conditions and features of the new strategy as well as its implications for labour policy, it is also necessary to examine the use of robots at the plant level. This study comes to the conclusion that the plant use of robots by no means follows a continuous curve, as would appear to be the case in industry and group statistics on the development of robot inventory. (orig./HW).

  16. Teleoperators: Man&apos;s Machine Partners

    Energy Technology Data Exchange (ETDEWEB)

    Corliss, William R.

    1972-01-01

    This booklet is about teleoperators, a class of machines that augment man rather than replace him. Teleoperators have the ability to add to man&apos;s strength, his reach, and his ability to work in hostile environments.

  17. The &apos;2000-Watt per person&apos;- industrial society - Utopia, vision or necessity?; Die &apos;2000 Watt pro Kopf&apos;-Industriegesellschaft - Utopie, Vision oder Notwendigkeit?

    Energy Technology Data Exchange (ETDEWEB)

    Jochem, E

    2006-07-01

    This short article takes a look at the &apos;2000-Watt per person&apos; concept initially developed at the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland, in 1998. The author is of the opinion that the concept is not utopian but a vision that can be realised - providing it is accepted socially and that politics can implement it. Further work on the concept done at the ETH over the years is listed and commented on. A diagram provides an overview of energy resources, energy transformation and energy flows to final energy consumption. The question as to if the realisation of such a &apos;2000-Watt&apos;-society is actually necessary is posed.

  18. Characterization and evaluation of residue &apos;grits&apos; of the cellulose industry; Caracterizacao e avaliacao do resisduo &apos;grits&apos; da industria de celulose

    Energy Technology Data Exchange (ETDEWEB)

    Destefani, A.Z.; Santos, M.M.; Holanda, J.N.F. [Universidade Estadual do Norte Fluminense Darcy Ribeiro (LAMAV/CCT/UENF), Campos dos Goytacazes, RJ (Brazil). Lab. de Materiais Avancados

    2010-07-01

    The cellulose industry generates huge amounts of solid waste residue called &apos;grits&apos;. These wastes have been willing over time in landfills near the mills. However, this type of disposal is not environmentally friendly and can cause degradation and environmental pollution. In addition, environmental legislation increasingly severe and the high costs of landfill have led the search for new alternatives for final disposition of this abundant waste. In this context, this study is to characterize waste grits, generated by the cellulose industry in the region of Aracruz-ES. The residue samples were characterized in terms of chemical composition, X-ray diffraction, particle size distribution and thermal analysis (DTA and TGA). The characterization of the residual &apos;grits&apos; demonstrated its potential as a feedstock for production of soil-cement bricks. (author)

  19. Berlusconi&apos;s power problems

    Energy Technology Data Exchange (ETDEWEB)

    Newman, N.

    2011-05-15

    The declining political influence of Silvio Berlusconi&apos;s government and fervent local opposition to new plants, particularly nuclear, has left the Italian power sector reliant on imports to address continuing power shortages. 4 figs.

  20. &apos;'Live'&apos; Prussian blue fading by time-resolved X-ray absorption spectroscopy

    Energy Technology Data Exchange (ETDEWEB)

    Gervais, Claire [Smithsonian Institution Museum Conservation Institute, Suitland, MD (United States); Bern University of the Arts, Bern (Switzerland); Languille, Marie-Angelique [Synchrotron SOLEIL, IPANEMA, USR 3461 CNRS/MCC, Gif-sur-Yvette (France); Reguer, Solenn [Synchrotron SOLEIL, DiffAbs beamline, Gif-sur-Yvette (France); Gillet, Martine [Museum national d' histoire naturelle, Centre de Recherche sur la Conservation des Collections, Paris (France); Vicenzi, Edward P. [Smithsonian Institution Museum Conservation Institute, Suitland, MD (United States); Chagnot, Sebastien; Baudelet, Francois [Synchrotron SOLEIL, ODE beamline, Gif-sur-Yvette (France); Bertrand, Loic [Synchrotron SOLEIL, IPANEMA, USR 3461 CNRS/MCC, Gif-sur-Yvette (France); Synchrotron SOLEIL, Gif-sur-Yvette (France)

    2013-04-15

    Prussian blue (PB) is an artists&apos; pigment that has been frequently used in many artworks but poses several problems of conservation because of its fading under light and anoxia treatment. PB fading is due to the reduction of iron(III) into iron(II) and depends a lot on the object investigated. Due to the complexity of the structure, the precise physico-chemical mechanisms behind the redox process remain obscure. In this paper, we present a procedure to investigate light- and anoxia-induced fading of PB-paper samples by means of time resolved X-ray absorption spectroscopy performed at the Fe K-edge. A system composed of a visible light source and a flux-controlled environmental cell allowed light, gas and humidity to be modified in situ. The synchrotron X-ray beam was evidenced to induce a reduction of PB and to play a major role in the kinetics. The analysis of the PB fading kinetics of a sample submitted to various gas and light environments showed that both synchrotron beam and anoxia were influencing PB reduction in a correlated way. In comparison, light was found to play a minor role. Finally, we have demonstrated that the type of paper substrate could influence significantly the kinetics of reduction. Several hypotheses to explain the correlation between PB reduction mechanism and substrate are presented. (orig.)

  1. Transient stress analysis of the main steam isolation valve during the load case &apos;&apos;fast opening of the main steam isolation valve&apos;&apos;; Transiente Spannungsanalyse des Gehaeuses eines aeusseren Frischdampfisolierventils beim Lastfall &apos;&apos;Schnelles Oeffnen des Frischdampfisolierventils&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Pacharzina, B.; Uptmoor, H. [Westinghouse Electric Germany GmbH, Mannheim (Germany)

    2008-07-01

    The structural integrity was demonstrated for a German NPP including the load case &apos;&apos;fast opening of the main steam isolation valve&apos;&apos;. Since the verification of the armature housing integrity was not possible using the component specific method according KTA 3201.2 a detailed finite element analysis using the ANSYS-FE code and elastic material characteristics was performed. The considered loads include operating weight, internal pressure, restrained thermal expansion, and fluid dynamical loads. For the damping behavior according KTA 2201.4 (earth quakes) a damping factor of 4% of the critical damping was assumed. The stress analysis was performed and evaluated.

  2. Technology centre &apos;&apos;aspern IQ&apos;&apos;. Office buildings in the plus-energy building as a benchmark for future projects; Technologiezentrum &apos;&apos;aspern IQ&apos;&apos;. Buerohaus im Plus-Energie-Standard als Benchmark fuer kuenftige Projekte

    Energy Technology Data Exchange (ETDEWEB)

    Achammer, Hannes [ATP Wien (Austria); IWP Liebhartstal II, Wien (Austria); Technologiezentrum aspern IQ, Wien (Austria)

    2012-11-01

    With 240 hectares per 20,000 residents and working people the future seaside town Aspern is one of the largest urban development projects in Europe and the largest in Vienna (Austria). At the end of August 2012, the component 1 of the technology centre &apos;&apos;aspern IQ&apos;&apos; of the Vienna Business Agency has been completed at the first construction site. This first building construction was designed in the plus-energy standard. As a flagship project it exemplary shall be adapted to the local resource supply, provide the highest possible user experience and meet the requirements of sustainability.

  3. &apos;Chernobyl feeling&apos;. Psychic sequels of the ecological crisis. &apos;Tschernobyl-Gefuehl&apos;. Psychische Folgen der oekologischen Krise

    Energy Technology Data Exchange (ETDEWEB)

    Boehm, A.; Boldt, P.R.; Faas, A.; Gross, B.; Jaeggi, E.; Legewie, H. (Technische Univ. Berlin (Germany). Inst. fuer Psychologie); Boehnke, A. (Freie Univ. Berlin (Germany). Inst. fuer Allgemeine und Vergleichende Erziehungswissenschaften)

    1990-04-01

    In scientific debate on the devastation of the environment, the predominant aspects so far have been natural-scientific and economy-scientific ones. But the ecological crisis with the Chernobyl accident as its symbol is not an incident of nature: It is man-made. It has its preconditions in social phenomena such as economy, politics, and the subjective condition of individuals. This contribution studies psychological &apos;surveying&apos; of environmental hazards, risk perception, and risk digestion by man. (DG).

  4. Imaging findings in 22 cases of Schnitzler syndrome: characteristic para-articular osteosclerosis, and the &apos;&apos;hot knees&apos;&apos; sign differential diagnosis

    Energy Technology Data Exchange (ETDEWEB)

    Niederhauser, Blake D. [Department of Radiology, Rochester, MN (United States); Dingli, David; Kyle, Robert A. [Mayo Clinic, Division of Hematology, Rochester, MN (United States); Ringler, Michael D. [Mayo Clinic, Department of Radiology, Rochester, MN (United States)

    2014-07-15

    Schnitzler syndrome is characterized by chronic urticaria, monoclonal gammopathy, and a risk of developing lymphoproliferative disorders. Patients frequently present with bone pain, fever, arthralgia, and lymphadenopathy. The purpose of this study is to retrospectively review and evaluate potentially attributable imaging abnormalities in a series of patients with clinically diagnosed Schnitzler syndrome. Clinical and pathological chart review identified 22 patients meeting Strasbourg criteria for Schnitzler syndrome. Imaging of these patients was retrospectively reviewed by a musculoskeletal radiologist and a radiology fellow to determine and characterize significant &apos;'positive'&apos; findings that could potentially be attributed to their primary disease process. Evidence of abnormal bone remodeling was present in 64 % (14/22) of patients with 40 bone abnormalities. Lesions were predominantly or entirely sclerotic and most commonly involved the distal femora (n = 11), proximal tibiae (nine), and innominate bones (six). Patterns of involvement were variable, but typically eccentrically intramedullary, cortical, and juxta-articular. Skeletal surveys and targeted radiographs identified only 37 % (10/27) of abnormal bones subsequently &apos;'positive'&apos; by additional modalities. PET and bone scans were all positive in patients with bone sclerosis (13/13 and 17/17 bone sites, respectively). Schnitzler syndrome often presents with characteristic osteosclerosis, most commonly around the knees and in the pelvis. In patients with a suggestive clinical history, the radiologist could direct an appropriate imaging strategy or might to be the first to suggest the diagnosis. Bone scan may be the most appropriate initial screening tool in suspected cases. (orig.)

  5. A model-independent &apos;&apos;general search&apos;&apos; for new physics with the ATLAS detector at LHC

    International Nuclear Information System (INIS)

    The LHC particle collider accelerates bunches of protons at energies never reached before, thus opening a completely new landscape of new physics. In this scenario the number of possible physics processes and signatures becomes virtually infinite, making the setup of dedicated analyses impossible. Moreover there are regions of the phase-space where signals of new physics are not very likely to be found, or where suitable theoretical models are missing, and it is important to be able to reveal new processes from such regions as well. At the time this Thesis was started, no model-independent analysis had been set for the ATLAS experiment at LHC. The goal of this work was then to conceive and develop a new model-independent &apos;&apos;General Search&apos;&apos; for ATLAS, and to explore its possibilities. The new analysis has been then implemented and run over the first data which have been collected by the ATLAS experiment at a centre-of-mass energy of 7 TeV. This work presents the motivation of the data analysis, describes its implementation and shows the results. The data have shown a very good agreement with the Standard Model expectation and no evidence of new physics has been observed. Nevertheless, an efficient strategy and methodology for a new model-independent &apos;&apos;General Search&apos;&apos; have been defined and they are ready to be used in a next version of this analysis, over a larger set of experimental data. During this work, a new innovative software framework has been also conceived and developed to ease the implementation of physics analysis code using Computer-Aided- Software-Engineering (CASE) principles. The framework has been successfully used to analyze the very first LHC data, and then it has been transformed into an open-source modular framework for HEP data analysis, and presented at Physics and Computer Science international conferences.

  6. Connections of the corticomedial amygdala in the golden hamster. I. Efferents of the &apos;&apos;vomeronasal amygdala&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Kevetter, G.A.; Winans, S.S.

    1981-03-20

    The medial (M) an posteromedial cortical (C3) amygdaloid nuclei and the nucleus of the accessory olfactory tract (NAOT) are designated the &apos;&apos;vomeronasal amygdala&apos;&apos; because they are the only components of the amygdala to receive a direct projection from the accessory olfactory bulb (AOB). The efferents of M and C3 were traced after injections of /sup 3/H-proline into the amygdala in male golden hamsters. Frozen sections of the brains were processed for autoradiography. The efferents of the &apos;&apos;vomeronasal amygdala&apos;&apos; are largely to areas which are primary and secondary terminal areas along the vomeronasal pathway, although the efferents from C3 and M terminate in different layers in these areas than do the projections from the vomeronasal nerve or the AOB. Specifically, C3 projects ipsilaterally to the internal granule cell layer of the AOB, the cellular layer of NAOT, and layer Ib of M. Additional fibers from C3 terminate in a retrocommissural component of the bed nucleus of the strain terminalis (BNST) bilaterally, and in the cellular layers of the contralateral C3. The medial nucleus projects to the cellular layer of the ipsilateral NAOT, layer Ib of C3, and bilaterally to the medial component of BNST. Projections from M to non-vomeronasal areas terminate in the medial preoptic area-anterior hypothalamic junction, ventromedial nucleus of the hypothalamus, ventral premammillary nucleus and possibly in the ventral subiculum. These results demonstrate reciprocal connections between primary and secondary vomeronasal areas between the secondary areas themselves. They suggest that M, but not C3, projects to areas outside this vomeronasal network. The medial amygdaloid nucleus is therefore an important link between the vomeronasal organ and areas of the brain not receiving direct vomeronasal input.

  7. India&apos;s Downstream Petroleum Sector

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-07-01

    This study provides a holistic examination of pricing and investment dynamics in India&apos;s downstream petroleum sector. It analyses the current pricing practices, highlights the tremendous fiscal cost of current pricing and regulatory arrangements, and examines the sectoral investment dynamics. It also looks at potential paths towards market-based reform along which the Indian government may move, while at the same time protecting energy market access for India&apos;s large poor population.

  8. Radiotherapy in Kimura&apos;s Disease

    Energy Technology Data Exchange (ETDEWEB)

    Huh, Gil Cha; Kang, Seung Hee; Suh, Hyun Suk [Inje University College of Medicine, Seoul (Korea, Republic of)

    1994-02-15

    Kimura&apos;s disease is a rare disorder which predominantly involves the head and neck region can cause eosinophilia in peripheral blood. It has been treated with steroids, surgical excision, irradiation, cryotherapy, and laser. The sessions have a tendency to recur after steroid and surgery. We reviewed 2 patients with Kimura&apos;s disease who recurred, because they were resistant steroid therapy and surgery, and treated successfully conventional radiation therapy.

  9. Persistent organochlorine pollutants and risk for skeletal fractures and impaired bone mineral density in humans. Results from the &apos;'COMPARE'&apos; project

    Energy Technology Data Exchange (ETDEWEB)

    Hagmar, L.; Wallin, E.; Joensson, B.A. [Department of Occupational and Environmental Medicine, Lund (Sweden)

    2004-09-15

    Persistent organochlorine pollutants (POP) have, in animal studies, impaired normal bone metabolism and resulted in increased bone fragility. Especially considering the dramatical increase in osteoporotic fractures in western societies during the last decades, it is a pertinent question whether a high dietary intake of POP might pose a risk for deteriorated bone quality in humans. This problem has been assessed as a part of the collaborative project &apos;'COMPARE'&apos;, funded by European Commission RD Life Science Program. As a study base we have used cohorts of Swedish fishermen&apos;s families. We have earlier shown that fishermen living at the east coast of Sweden, have a high consumption of contaminated fatty fish from the Baltic Sea and consequently relatively high exposure levels for various POPs, also compared with fishermen from the Swedish west coast. Such a discrepancy was also found for fishermen&apos;s wives. The aim of the project was to assess in epidemiological studies whether a high dietary intake of POP through fatty fish from the Baltic may result in an increased incidence of osteoporotic fractures or decreased bone mineral density (BMD). We give here an overview of the results.

  10. Radioimmunoassay for guanosin-5&apos;-diphosphate-3&apos;-diphosphate and adenosine-5&apos;-triphosphate-3&apos;-diphosphate

    Energy Technology Data Exchange (ETDEWEB)

    Hamagishi, Y.; Oki, T.; Tone, H.; Inui, T. (Sanraku-Ocean Co. Ltd., Fujisawa, Kanagawa (Japan). Central Research Lab.)

    1980-12-01

    A radioimmunoassay for guanosine-5&apos;-diphosphate-3&apos;-diphosphate (ppGpp) and adenosine-5&apos;-triphosphate-3&apos;-diphosphate (pppApp) has been developed. The assay method is based on competition of an unlabeled highly phosphorylated nucleotide with /sup 3/H-labeled highly phosphorylated nucleotide for binding sites on a specific antibody. Antibodies to ppGpp and pppApp were obtained by immunizing rabbits with the antigen prepared by conjugating ppGpp with human serum albumin using 1-ethyl-3-(3-dimethylaminoprophyl)carbodiimide, and with the antigen prepared by conjugating 8-(6-aminohexyl)amino-adenosine-5&apos;-triphosphate-3&apos;-diphosphate with human serum albumin using glutaraldehyde, respectively. Antibody-bound /sup 3/H-labeled highly phosphorylated nucleotides were separated from the free /sup 3/H-labeled highly phosphorylated nucleotides by selective adsorption on dextran-coated charcoal. Displacement plots were linear over a concentration range of 5 - 1,000 pmol/assay tube in a log-probit percentage plot. Application of this method to biological systems offers improved accuracy and convenience compared with the previous /sup 32/PO/sub 4/-labeling technique.

  11. Selective Bifunctional Modification of a Non-catenated Metal-Organic Framework Material via &apos;Click&apos; Chemistry

    Energy Technology Data Exchange (ETDEWEB)

    Gadzikwa, Tendai; Farha, Omar K.; Malliakas, Christos D.; Kanatzidis, Mercouri G.; Hupp, Joseph T.; Nguyen, SonBinh T.; NWU

    2009-12-01

    A noncatenated, Zn-based metal-organic framework (MOF) material bearing silyl-protected acetylenes was constructed and postsynthetically modified using &apos;click&apos; chemistry. Using a solvent-based, selective deprotection strategy, two different organic azides were &apos;clicked&apos; onto the MOF crystals, resulting in a porous material whose internal and external surfaces are differently functionalized.

  12. How Do Teachers&apos; Beliefs Predict Children&apos;s Interest in Math from Kindergarten to Sixth Grade?

    Science.gov (United States)

    Upadyaya, Katja; Eccles, Jacquelynne S.

    2014-01-01

    The present study investigated to what extent teachers&apos; beliefs about children&apos;s achievement contribute to the development of children&apos;s math interest. In addition, the extent to which other possible predictors, such as performance in math, gender, and race/ethnicity would contribute to the development of children&apos;s math…

  13. Applications of Dweck&apos;s Model of Implicit Theories to Teachers&apos; Self-Efficacy and Emotional Experiences

    Science.gov (United States)

    Williams, Alexis Ymon

    2012-01-01

    The current study explored Dweck&apos;s (1999; Dweck & Leggett, 1988) model of implicit theories in the context of teaching in order to establish its usefulness for describing teachers&apos; beliefs about students&apos; ability and social behavior. Further it sought to explain the connections between teachers&apos; implicit beliefs and their…

  14. The Role of Student-Teacher Ratio in Parents&apos; Perceptions of Schools&apos; Engagement Efforts

    Science.gov (United States)

    Rodriguez, Raymond J.; Elbaum, Batya

    2014-01-01

    Research suggests a positive relationship between schools&apos; efforts to engage parents and parents&apos; involvement in their child&apos;s education. The authors investigated school socioeconomic status, school size, grade level, and student-teacher ratio as predictors of schools&apos; efforts to engage parents of students receiving special…

  15. &apos;Finnova Development Group&apos;. Comb Configurated Costumer-close Network Installations with Underground Service Boxes; &apos;Finnova&apos; Innovativ Montage och Systemloesning foer Fjaerrvaermeanslutning av Villaomraade. Huvudloesning &apos;Kamfoerlaeggning med Serviceskaap&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Gudmundson, Tommy [AaF-Process AB, Stockholm (SE)] (and others)

    2006-07-15

    In this report a completely new approach to the distribution of District Heating Services is presented. The general idea of the solution, here presented under the name Comb Configurated Costumer close Network Installations with Underground Service Boxes (in the following referred to as Finnova AF), was given birth during a very early stage of the working process of the FDG. The goal for our &apos;Vaermegles&apos;- project (&apos;Vaermegles&apos; means for a residential area to have a low heat demand) is to present a technical solution that implies a substantial cost reduction for establishing DH in such low heat demand residential areas, when compared with what is recognized as to-day applied &apos;best technology&apos;. The aim point was, in the cost level of 2003/2004, VAT not included, a total investment sum of SEK 50,000 (about 7,000 USD). Using flexible piping, delivered to the site as coils of 100 m of pipes each, installed according to the Comb configuration principle, no joints installed directly in the ground are needed. The number of street crossings is strongly reduced, as compared with today&apos;s practice. The total of the joint assembly work takes place inside underground service boxes, situated at the building site boundaries. In this way the continuity of the building process is strongly improved. The stages of operation: digging, installing of pipes, backfilling and arranging of service boxes will take place in shortest possible time. As a prototype, the so called service box (e g a service and connection box, let us call it an &apos;S/C&apos; box) is square, made of concrete and will be installed with its roof 4-8 inches above ground. Inside the box, a fully equipped DH &apos;substation&apos;, designed as an easily replaceable cassette. In the prototype the closing cap is made from a galvanised steel sheet. The same box and cassette designs can be used for almost all single family houses with a heat demand not exceeding 10 kW. This gives a

  16. Augmented atherogenesis in LDL receptor deficient mice lacking both macrophage ABCA1 and ApoE.

    Directory of Open Access Journals (Sweden)

    Bart Lammers

    Full Text Available AIM: ABCA1 protects against atherosclerosis by facilitating cholesterol efflux from macrophage foam cells in the arterial wall to extracellular apolipoprotein (apo A-I. In contrast to apoA-I, apoE is secreted by macrophages and can, like apoA-I, induce ABCA1-mediated cholesterol efflux. Yet, the combined effect of macrophage ABCA1 and apoE on lesion development is unexplored. METHODS AND RESULTS: LDL receptor knockout (KO mice were transplanted with bone marrow from ABCA1/apoE double KO (dKO mice, their respective single KO's, and wild-type (WT controls and were challenged with a high-fat/high-cholesterol diet for 9 weeks. In vitro cholesterol efflux experiments showed no differences between ABCA1 KO and dKO macrophages. The serum non-HDL/HDL ratio in dKO transplanted mice was 1.7-fold and 2.4-fold (p<0.01 increased compared to WT and ABCA1 KO transplanted mice, respectively. The atherosclerotic lesion area in dKO transplanted animals (650±94×10(3 µm(2, however, was 1.9-fold (p<0.01 and 1.6-fold (p<0.01 increased compared to single knockouts (ABCA1 KO: 341±20×10(3 µm(2; apoE KO: 402±78×10(3 µm(2, respectively and 3.1-fold increased (p<0.001 compared to WT (211±20×10(3 µm(2. When normalized for serum cholesterol exposure, macrophage ABCA1 and apoE independently protected against atherosclerotic lesion development (p<0.001. Moreover, hepatic expression levels of TNFα and IL-6 were highly induced in dKO transplanted animals (3.0-fold; p<0.05, and 4.3-fold; p<0.001, respectively. In agreement, serum IL-6 levels were also enhanced in ABCA1 KO transplanted mice (p<0.05 and even further enhanced in dKO transplanted animals (3.1-fold as compared to ABCA1 KO transplanted animals; p<0.05. CONCLUSIONS: Combined deletion of macrophage ABCA1 and apoE results in a defect in cholesterol efflux and, compared to ABCA1 KO transplanted mice, elevated serum total cholesterol levels. Importantly, these mice also suffer from enhanced systemic and hepatic

  17. TRAIL deficiency contributes to diabetic nephropathy in fat-fed ApoE-/- mice.

    Directory of Open Access Journals (Sweden)

    Siân P Cartland

    Full Text Available BACKGROUND: We recently demonstrated that TNF-related apoptosis-inducing ligand (TRAIL is protective of diet-induced diabetes in mice. While TRAIL has been implicated in chronic kidney disease, its role in vivo in diabetic nephropathy is not clear. The present study investigated the role of TRAIL in the pathogenesis of diabetic nephropathy using TRAIL(-/-ApoE(-/- mice. METHODS: TRAIL(-/-ApoE(-/- and ApoE(-/- mice were fed a high fat diet for 20 w. Plasma glucose and insulin levels were assessed over 0, 5, 8 and 20 w. At 20 w, markers of kidney function including creatinine, phosphate, calcium and cystatin C were measured. Changes in mRNA expression of MMPs, TIMP-1, IL-1β and IL-18 were assessed in the kidney. Functional and histological changes in kidneys were examined. Glucose and insulin tolerance tests were performed. RESULTS: TRAIL(-/-ApoE(-/- mice had significantly increased urine protein, urine protein:creatinine ratio, plasma phosphorous, and plasma cystatin C, with accelerated nephropathy. Histologically, increased extracellular matrix, mesangial expansion and mesangial cell proliferation in the glomeruli were observed. Moreover, TRAIL(-/-ApoE(-/- kidneys displayed loss of the brush border and disorganisation of tubular epithelium, with increased fibrosis. TRAIL-deficient kidneys also had increased expression of MMPs, TIMP-1, PAI-1, IL-1β and IL-18, markers of renal injury and inflammation. Compared with ApoE(-/- mice, TRAIL-/-ApoE-/- mice displayed insulin resistance and type-2 diabetic features with reduced renal insulin-receptor expression. CONCLUSIONS: Here, we show that TRAIL-deficiency in ApoE(-/- mice exacerbates nephropathy and insulin resistance. Understanding TRAIL signalling in kidney disease and diabetes, may therefore lead to novel strategies for the treatment of diabetic nephropathy.

  18. DGMK spring meeting of the &apos;Exploration and Production&apos; department. Authors&apos; manuscripts; DGMK-Fruehjahrstagung des Fachbereichs &apos;Aufsuchung und Gewinnung&apos;. Autorenmanuskripte

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    The spring meeting of the Deutsche Wissenschaftliche Gesellschaft fuer Erdoel, Erdgas und Kohle e.V. focused on exploration and production. Papers were presented on exploration and production in general, geology, deposit development, extraction of petroleum/natural gas, drilling, underground storage, geophysics and geochemistry. [German] Die Fruehjahrstagung der Deutschen Wissenschaftlichen Gesellschaft fuer Erdoel, Erdgas und Kohle e.V. wurde vom Fachbereich &apos;&apos;Aufsuchung und Gewinnung&apos;&apos; bestimmt. Die Vortraege beschaeftigten sich mit den Gebieten Exploration and Production allgemein, Geologie, Lagerstaettentechnik, Foerdertechnik fuer Erdoel/Erdgas, Bohrtechnik, Untertagesspeichertechnik, Geophysik und Geochemie.

  19. Dry tree semisubmersible platform: from &apos;technology accepted&apos; to &apos;project ready&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Lu, Roger; Wang, Tao; Nygaard, Magne; Bendiksen, Rolf [Aker Solutions, Oslo (Norway)

    2012-07-01

    Development of new technologies for application of dry tree solutions on semi-submersible hull production platforms opens up new flexible and cost efficient solutions for oil and gas fields in deep and ultra deep water. Aker Solutions has brought the technology through the last steps to a project ready stage. Top tension risers allow for shifting the Christmas tree from seabed to topside, and enables drilling and production from the same unit. By shifting the wellhead and Christmas tree from seabed to platform deck, well maintenance is simplified, and makes the Dry Tree Semi relevant to consider for the Brazilian pre-salt reservoirs. Easy access to the wells for maintenance gives a potential for a higher recovery rate for the field. Future development of ultra deep water oil and gas fields demands solutions overcoming the limitations set by the TLP and the Spar buoy. Combining knowledge from already proven solutions, and a limited addition of new technology, these limitations are overcome with Aker Solutions&apos; Dry Tree Semi. It is designed and proven for Gulf of Mexico environmental conditions. It is verified for conditions with a significant wave height of 14 meters, and able to withstand 100-year extreme weather and 1000-years survival conditions. A conventional semi-submersible platform, but with a deeper draft to further reduce the already low motions, makes the basis for the concept. Top tensioned risers (TTR) with vertical motion compensation stroke of up to 10 meters, makes it possible to shift the Christmas tree from seabed to platform deck. The deep draft design of the hull reduces the wave force excitation on the pontoons, reducing both the roll and pitch dynamics. The Dry Tree Semi represents several major benefits, including low sensitivity to water depth, reduced hull and topside weight, and flexibility in transportation, mooring, and decommissioning. (author)

  20. Can Venezuela&apos;s oil sector endure Chavez&apos; ambitions any longer?; Kan Venezuela&apos;s oliesector Chavez&apos; ambities nog langer dragen?

    Energy Technology Data Exchange (ETDEWEB)

    Honkoop, J.

    2009-07-15

    The author describes the decline of Venezuela&apos;s oil industry as well as President Chavez&apos; reaction to Venezuela&apos;s budgetary crisis. Politicization, falling investment and the obligation to take upon itself a plethora of social spending have left national oil company Petroleos de Venezuela, S.A. unable to produce efficiently and maintain production levels. Falling oil production and lower oil prices have in turn left president Hugo Chavez unable to spread the wealth to Venezuela&apos;s poor and he is searching desperately for ways to extract yet more from Venezuela&apos;s dysfunctional economy. As funds run out, Venezuela&apos;s expensive foreign policy, supporting regional allies, in particular Cuba, and seeking to export anywhere but the United States, proves overly expensive. Venezuela&apos;s impoverished masses, still supportive of Chavez during February&apos;s elections, may become less so as funds for social programmes run out. For Chavez it is a time for making choices... otherwise the people of Venezuela will choose for him. [Dutch] De auteur beschrijft de teruggang van de olie-industrie van Venezuela en de reacties van president Chavez op de budgettaire crisis in Venezuela. Politisering, dalende investeringen en de verplichtingen m.b.t. de overvloed aan sociale uitgaven zorgen er voor dat de nationale oliemaatschappij Petroleos de Venezuela niet in staat is om efficient te produceren en de productie op peil te houden. Dalende olie-productie en lagere olieprijzen zorgen er ook voor dat de president niet in staat is om de rijkdom te verdelen over de armen in Venezuela. Hij is op zoek naar manieren om meer te halen uit de slecht functionerende economie. Zijn dure buitenlandse Venezuela beleid, onder meer door ondersteuning van regionale bondgenoten, in het bijzonder Cuba, en het zoeken naar export mogelijkheden, behalve naar de USA, pakt fiancieel gezien slecht uit. De verarmde massa&apos;s van Venezuela steunden Chavez nog in de verkiezingen in

  1. High serum apolipoprotein E determines hypertriglyceridemic dyslipidemias, coronary disease and apoA-I dysfunctionality.

    Science.gov (United States)

    Onat, Altan; Can, Günay; Ornek, Ender; Ayhan, Erkan; Erginel-Ünaltuna, Nihan; Murat, Sani N

    2013-01-01

    The relevance of serum apolipoprotein E (apoE) levels to two hypertriglyceridemic dyslipidemias has not been clarified. We explored, in a cross-sectional (and short-term prospective) evaluation, the independent relationship of serum apoE to the atherogenic dyslipidemia, hypertriglyceridemia with elevated apoB (HtgB) and to apoA-I dysfunctionality, previously shown in Turkish adults to be independent of apoE genotype. Serum apoE concentrations were measured by immunonephelometry in 1,127 middle-aged adults. In multivariable regression analysis, apoE concentrations showed log-linear associations with apoB and apoA-I levels, waist circumference, independent of C-reactive protein (CRP), homeostatic model assessment (HOMA) index and other confounders. The likelihood of atherogenic dyslipidemia and of HtgB roughly tripled per 1-SD increment in apoE concentrations, additively to apoE genotype, HOMA, apoA-I, CRP concentrations and waist circumference; yet apoA-I, protective against atherogenic dyslipidemia, appeared to promote HtgB, a finding consistent with apoA-I dysfunctionality in this setting. Each 1-SD increment in the apoE level was moreover, associated in both genders with MetS (at OR 1.5), after adjustment for sex, age, apoB, apoA-I and CRP, or for apoE genotypes. Circulating apoE predicted in both genders age-adjusted prevalent and incident coronary heart disease (CHD), independent of apoE genotype and CRP (OR 1.32 [95 % CI 1.11; 1.58]). To conclude, in a general population prone to MetS, elevated apoE concentrations are strongly linked to HtgB and atherogenic dyslipidemia, irrespective of apoE genotype, are associated with MetS and CHD. Excess apoE reflects pro-inflammatory state and likely autoimmune activation.

  2. Status of Activities on Rehabilitation Of Radioactively Contaminated Facilities and the Site of Russian Research Center &apos;&apos;Kurchatov Institute&apos;&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Volkov, V. G.; Ponomarev-Stepnoi, N. N.; Melkov, E. S; Ryazantsev, E. P.; Dikarev, V. S.; Gorodetsky, G. G.; Zverkov, Yu. A.; Kuznetsov, V. V.; Kuznetsova, T. I.

    2003-02-25

    This paper describes the program, the status, and the course of activities on rehabilitation of radioactively contaminated facilities and the territory of temporary radioactive waste (radwaste) disposal at the Russian Research Center &apos;&apos;Kurchatov Institute&apos;&apos; (RRC KI) in Moscow as performed in 2001-2002. The accumulation of significant amounts of radwaste at RRC KI territory is shown to be the inevitable result of Institute&apos;s activity performed in the days of former USSR nuclear weapons project and multiple initial nuclear power projects (performed from 1950&apos;s to early 1970&apos;s). A characterization of RRC KI temporary radwaste disposal site is given. Described is the system of radiation control and monitoring as implemented on this site. A potential hazard of adverse impacts on the environment and population of the nearby housing area is noted, which is due to possible spread of the radioactive plume by subsoil waters. A description of the concept and project of the RRC KI temporary radwaste disposal site is presented. Specific nature of the activities planned and performed stems from the nearness of housing area. This paper describes main stages of the planned activities for rehabilitation, their expected terms and sources of funding, as well as current status of the project advancement. Outlined are the problems faced in the performance and planning of works. The latter include: diagnostics of the concrete-grouted repositories, dust-suppression technologies, packaging of the fragmented ILW and HLW, soil clean-up, radioactive plume spread prevention, broad radiation monitoring of the work zone and environment in the performance of rehabilitation works. Noted is the intention of RRC KI to establish cooperation with foreign, first of all, the U.S. partners for the solution of problems mentioned above.

  3. Sustainable Agriculture: enhancement of the &apos;neem cake&apos;

    International Nuclear Information System (INIS)

    The &apos;neem cake&apos; scrap processing of the industrial chain producing neem oil and azadirachtin. The ENEA laboratories have developed a promising trial to promote the use of neem cake as a low-cost insecticide and fertilizer in sustainable agriculture.

  4. "Entre Familia": Immigrant Parents&apos; Strategies for Involvement in Children&apos;s Schooling

    Science.gov (United States)

    Poza, Luis; Brooks, Maneka Deanna; Valdés, Guadalupe

    2014-01-01

    Teachers and administrators in schools with large, working-class Latino populations often complain of parents&apos; indifference or lack of involvement in children&apos;s schooling because of their low visibility at school events and relatively little face-to-face communication with teachers and school administration. In a series of…

  5. Role of Duplex Doppler US for Thyroid Nodules: Looking for the &apos;Sword&apos; Sign

    Energy Technology Data Exchange (ETDEWEB)

    Lacout, Alexis [Centre d' imagerie Me' dicale, Centre Me' dico Chirurgical, Aurillac (France); Marcy, Pierre Yves; Thariat, Juliette [Antoine Lacassagne Cancer Research Institute, Nice (France)

    2011-06-15

    Duplex Doppler US may be useful for the detection of thyroid malignancies that show either anarchic winding or penetrating &apos;sword like&apos; neoangiogenic vessels. It may be helpful in selecting nodules that should undergo fine needle aspiration biopsy.

  6. Relations among Teachers&apos; Emotion Socialization Beliefs and Practices and Preschoolers&apos; Emotional Competence

    Science.gov (United States)

    Morris, Carol A. S.; Denham, Susanne A.; Bassett, Hideko H.; Curby, Timothy W.

    2013-01-01

    Research Findings: Utilizing a 3-part model of emotion socialization that included modeling, contingent responding, and teaching, this study examined the associations between 44 teachers&apos; self-reported and observed emotion socialization practices and 326 preschoolers&apos; emotion knowledge and observed emotional behavior. Multilevel analyses…

  7. Simple analytical expression for work function in the &apos;nearest neighbour&apos; approximation

    Energy Technology Data Exchange (ETDEWEB)

    Chrzanowski, J. [Institute of Physics, Maritime University of Szczecin, 1-2 Waly Chrobrego, Szczecin 70-500 (Poland); Kravtsov, Yu.A., E-mail: y.kravtsov@am.szczecin.p [Institute of Physics, Maritime University of Szczecin, 1-2 Waly Chrobrego, Szczecin 70-500 (Poland); Space Research Institute, Profsoyuznaya St. 82/34, Moscow 117997 (Russian Federation)

    2011-01-17

    Nonlocal operator of potential is suggested, based on the &apos;nearest neighbour&apos; approximation (NNA) for single electron wave function in metals. It is shown that Schroedinger equation with nonlocal potential leads to quite simple analytical expression for work function, which surprisingly well fits to experimental data.

  8. An Exploration of Mothers&apos; Attitudes towards Their Daughters&apos; Menarche

    Science.gov (United States)

    Bennett, Clare; Harden, Jane

    2014-01-01

    Menarche is a significant milestone for young women, representing an important juncture between girlhood and maturation. The limited literature that exists suggests that a mother&apos;s reaction to her daughter&apos;s first periods can shape her experiences and perceptions of menstruation which, in turn, may impact on her self-image and,…

  9. Low-Dose Radiation Exposure and Atherosclerosis in ApoE(-/-) Mice

    NARCIS (Netherlands)

    Mitchel, R. E. J.; Hasu, M.; Bugden, M.; Wyatt, H.; Little, M. P.; Gola, A.; Hildebrandt, G.; Priest, N. D.; Whitman, S. C.

    2011-01-01

    The hypothesis that single low-dose exposures (0.025-0.5 Gy) to low-LET radiation given at either high (about 150 mGy/min) or low (1 mGy/min) dose rate would promote aortic atherosclerosis was tested in female C57BL/6J mice genetically predisposed to this disease (ApoE(-/-)). Mice were exposed eithe

  10. The &apos;humanitarian dimension&apos; of nuclear disarmament: a legitimate debate?

    International Nuclear Information System (INIS)

    Since 2010, a debate on the &apos;humanitarian dimension&apos; of disarmament has been initiated by several governments and non-governmental organisations. It is not unreasonable to measure the potential impact of a major nuclear event on populations and on the biosphere. Yet the grounds for this debate are questionable, and its political conclusions even more so. (author)

  11. Proceedings of workshop on &apos;boron science and boron neutron capture therapy&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Kitaoka, Y. [ed.

    1998-12-01

    This volume contains the abstracts and programs of the 8th (1996), 9th (1997) and 10th (1998) of the workshop on &apos;the Boron Science and Boron Neutron Capture Therapy&apos; and the recent progress reports especially subscribed. The 11 of the presented papers are indexed individually. (J.P.N.)

  12. Chilean Adolescents&apos; and Parents&apos; Views on Autonomy Development

    Science.gov (United States)

    Martínez, M. Loreto; Pérez, J. Carola; Cumsille, Patricio

    2014-01-01

    This study aims to understand Chilean parents&apos; and adolescents&apos; conceptions of autonomy and whether they hold different expectations for autonomous behaviors by generation and socioeconomic level. A qualitative approach to data collection was used through separate focus groups of parents and adolescents from different socioeconomic…

  13. The influence of virus diseases on grape polyphenols of cv. &apos;Refosk&apos;

    International Nuclear Information System (INIS)

    External stimuli such as microbial infections, ultraviolet radiation, and chemical stressors can modulate the synthesis of polyphenols in the plants. Cv. &apos;Refosk&apos; was used to show the influence of the GLRaV-1 and rugose wood (RW) on the polyphenols in grape. The infection shifted polyphenols from seeds to grape skins but had no impact on anthocyanins

  14. The Relationship between Teacher&apos;s Autonomy Support and Students&apos; Autonomy and Vitality

    Science.gov (United States)

    Núñez, Juan L.; Fernández, Celia; León, Jaime; Grijalvo, Fernando

    2015-01-01

    What makes a student feel vital and energetic? Using the self-determination framework, we analyzed how the behavior and feelings of students depend on social factors such as the teachers&apos; attitudes. The goal of the study was to test an integrated sequence over a semester in which teacher&apos;s autonomy support acts as a predictor of…

  15. Malaysian Primary Pre-Service Teachers&apos; Perceptions of Students&apos; Disruptive Behaviour

    Science.gov (United States)

    Zakaria, Norzila; Reupert, Andrea; Sharma, Umesh

    2013-01-01

    The purpose of this paper was to investigate Malaysian primary pre-service teachers&apos; perceptions of students&apos; disruptive behaviour and their self-reported strategies to prevent and to manage such behaviours. Results indicate that Malaysian pre-service teachers understand disruptive behaviours to be those that disrupt the learning and…

  16. Differential effects of the ApoE4 genotype on brain structure and function

    NARCIS (Netherlands)

    Matura, S.; Prvulovic, D.; Jurcoane, A.; Hartmann, D.; Miller, J.; Scheibe, M.; O'Dwyer, L.G.; Oertel-Knochel, V.; Knochel, C.; Reinke, B.; Karakaya, T.; Fusser, F.; Pantel, J.

    2014-01-01

    The apolipoprotein E epsilon4 allele is a well established genetic risk factor for sporadic Alzheimer's disease. It is associated with structural and functional brain changes in healthy young, middle-aged and elderly subjects. In the current study, we assessed the impact of the ApoE genotype on brai

  17. Mapping of ApoE4 related white matter damage using diffusion MRI

    Science.gov (United States)

    Tsao, Sinchai; Gajawelli, Niharika; Hwang, Darryl H.; Kriger, Stephen; Law, Meng; Chui, Helena; Weiner, Michael; Lepore, Natasha

    2014-04-01

    ApoliopoproteinE Ɛ4 (ApoE-Ɛ4) polymorphism is the most well known genetic risk factor for developing Alzheimers Disease. The exact mechanism through which ApoE 4 increases AD risk is not fully known, but may be related to decreased clearance and increased oligomerization of Aβ. By making measurements of white matter integrity via diffusion MR and correlating the metrics in a voxel-based statistical analysis with ApoE-Ɛ4 genotype (whilst controlling for vascular risk factor, gender, cognitive status and age) we are able to identify changes in white matter associated with carrying an ApoE Ɛ4 allele. We found potentially significant regions (Puncorrected < 0:05) near the hippocampus and the posterior cingulum that were independent of voxels that correlated with age or clinical dementia rating (CDR) status suggesting that ApoE may affect cognitive decline via a pathway in dependent of normal aging and acute insults that can be measured by CDR and Framingham Coronary Risk Score (FCRS).

  18. Reduced hippocampal volume in healthy young ApoE4 carriers: an MRI study

    NARCIS (Netherlands)

    O'Dwyer, L.G.; Lamberton, F.; Matura, S.; Tanner, C.; Scheibe, M.; Miller, J.; Rujescu, D.; Prvulovic, D.; Hampel, H.

    2012-01-01

    The E4 allele of the ApoE gene has consistently been shown to be related to an increased risk of Alzheimer's disease (AD). The E4 allele is also associated with functional and structural grey matter (GM) changes in healthy young, middle-aged and older subjects. Here, we assess volumes of deep grey m

  19. Examining the Relationship between Teachers&apos; Instructional Practices and Students&apos; Mathematics Achievement

    Science.gov (United States)

    Firmender, Janine M.; Gavin, M. Katherine; McCoach, D. Betsy

    2014-01-01

    The purpose of this study was to determine whether relationships existed between teachers&apos; implementation of two specific discourse-related instructional practices and students&apos; mathematics achievement in geometry and measurement as part of a research study on the effectiveness of an advanced mathematics curriculum for kindergarten and…

  20. Management and research priorities of NASA &apos;Human Research Program&apos;

    International Nuclear Information System (INIS)

    Research on humans has been the focus of the United States space biomedical research, while &apos;Human Research Program&apos;, as an important project initiated by NASA, aims to reduce the risks to the health and performance of astronauts. This paper analyzed this project in terms of organization and management, funding investment and research directions. (authors)

  1. A Class Act? Lecturers&apos; Views on Undergraduates&apos; Employability

    Science.gov (United States)

    Morrison, Andrew

    2014-01-01

    This article details the findings of a study into lecturers&apos; perceptions of undergraduate employability. The investigation employed interviews with the staff on a BA (Hons) in Education Studies course at a post-1992 university. The aim was to examine staff beliefs regarding their students&apos; potential employability in the business and…

  2. Parents&apos; and Teachers&apos; Perceptions of Standards-Based and Traditional Report Cards

    Science.gov (United States)

    Swan, Gerry M.; Guskey, Thomas R.; Jung, Lee Ann

    2014-01-01

    The purpose of this study was to determine parents&apos; and teachers&apos; perceptions of standards-based and traditional report cards. Participants included 115 parents/guardians of students from a single, midsize school district that had implemented a standards-based report card. During the first two marking periods, all parents/guardians…

  3. Apo J and Apo D: Complementary or Antagonistic Roles in Alzheimer's Disease?

    Science.gov (United States)

    Del Valle, Eva; Navarro, Ana; Martínez-Pinilla, Eva; Torices, Silvia; Tolivia, Jorge

    2016-05-17

    Apolipoprotein D (Apo D) and Apolipoprotein J (Apo J) are among the only nine apolipoproteins synthesized in the nervous system. Apart from development, these apolipoproteins are implicated in the normal aging process as well as in different neuropathologies as Alzheimer's disease (AD), where a neuroprotective role has been postulated. Different authors have proposed that Apo D and Apo J could be biomarkers for AD but as far as we know, there are no studies about the relationship between them as well as their expression pattern along the progression of the disease. In this paper, using double immunohistochemistry techniques, we have demonstrated that Apo D is mainly located in glial cells while Apo J expression preferentially occurs in neurons; both proteins are also present in AD diffuse and mature senile plaques but without signal overlap. In addition, we have observed that Apo J and Apo D immunostaining shows a positive correlation with the progression of the disease and the Braak's stages. These results suggest complementary and cell-dependent neuroprotective roles for each apolipoprotein during AD progress.

  4. MR evaluation of &apos;Metaphyseal&apos; change in Legg-Calve-Perthes disease

    Energy Technology Data Exchange (ETDEWEB)

    Moon, Haeng Jin; Na, Jae Boem; Shin, Chang Min; You, Jin Jong; Chung, Sung Hoon [Gyeongsang National Univ. College of Medicine, Chinju (Korea, Republic of)

    2001-06-01

    To determine the metaphyseal changes occurring in Legg-Calve-Perthes(LCP) disease using MRI. Between 1992 to 1999, 80 LCP patients (87 hips) underwent MR imaging and plain radiography. All MR images were reviewed, bone marrow signal intensity, the size and locatiion of the metaphyseal cyst and its epiphyseal necrosis grade determined. Metaphyses were abnormal in 43hips (49%), while bone marrow edema was present in 28 (32%) and a metaphyseal cyst in 30 (34%). Metaphyseal cysts were classified as either &apos;true&apos; (n=9) or &apos;false&apos; (n=21) according to the enhancement pattern. The maximum diameters of true and false cysts were 1.1{+-}0.3 cm and 1.1{+-}0.4 cm, respectively. Their most commom location was the anterior column; a true cyst occurred there in 7cases (78%), and false cyst in 16 (76%). Using the Waldenstrom classification, seven of the nine hips wih a true cyst (78%), were found to be at the avascular stage and 15 of the 21 with a false cyst (71%) were at the fragmentation stage. Seven of these nine (78%) and 19 of these 21 (90%) were Catterall grade IV. According to the findings of MR imaging, the metaphyseal changes occurring in LCP disease were bone marrow edema and metaphyseal cyst. This latter was visualized mainly in the anterior column and severely affected hip, and was classified as &apos;true&apos; or &apos;false&apos;.

  5. Teachers&apos; Perceptions Regarding School Principals&apos; Coaching Skills

    Science.gov (United States)

    Yirci, Ramazan; Özdemir, Tuncay Yavuz; Kartal, Seçil Eda; Kocabas, Ibrahim

    2014-01-01

    The purpose of this study was to find out teachers&apos; perceptions about school principals&apos; coaching skills. The study was carried out within qualitative research methods. The study group included 76 teachers in Elazig and 73 teachers in Kahramanmaras provinces of Turkey. All the data were processed using Nvivo 9 software. The results…

  6. The &apos;Aktionsplan Anpassung&apos; of the German government. An economic assessment; Der &apos;&apos;Aktionsplan Anpassung&apos;&apos; an den Klimawandel. Eine oekonomische Bewertung

    Energy Technology Data Exchange (ETDEWEB)

    Gawel, Erik [Helmholtz-Zentrum fuer Umweltforschung - UFZ, Leipzig (Germany). Dept. Oekonomie; Leipzig Univ. (Germany). Inst. fuer Infrastruktur und Ressourcenmanagement; Heuson, Clemens [Helmholtz-Zentrum fuer Umweltforschung - UFZ, Leipzig (Germany). Dept. Oekonomie

    2011-12-15

    In view of the slow going in the prevention of climate-relevant gaseous emissions, adaptation to global climate change is getting increasingly important. With its adaptation plan of 2008, the German government intends to make society, industry and the environment more resistant to climate changes and their consequences. The &apos;Aktionsplan Anpassung&apos; of 31 August 2011 outlines specific activities of the German government to meet these goals. The contribution attempts an economic assessment and an identification of further actions that may be required.

  7. A Dietary Treatment Improves Cerebral Blood Flow and Brain Connectivity in Aging apoE4 Mice

    Directory of Open Access Journals (Sweden)

    Maximilian Wiesmann

    2016-01-01

    Full Text Available APOE ε4 (apoE4 polymorphism is the main genetic determinant of sporadic Alzheimer’s disease (AD. A dietary approach (Fortasyn including docosahexaenoic acid, eicosapentaenoic acid, uridine, choline, phospholipids, folic acid, vitamins B12, B6, C, and E, and selenium has been proposed for dietary management of AD. We hypothesize that the diet could inhibit AD-like pathologies in apoE4 mice, specifically cerebrovascular and connectivity impairment. Moreover, we evaluated the diet effect on cerebral blood flow (CBF, functional connectivity (FC, gray/white matter integrity, and postsynaptic density in aging apoE4 mice. At 10–12 months, apoE4 mice did not display prominent pathological differences compared to wild-type (WT mice. However, 16–18-month-old apoE4 mice revealed reduced CBF and accelerated synaptic loss. The diet increased cortical CBF and amount of synapses and improved white matter integrity and FC in both aging apoE4 and WT mice. We demonstrated that protective mechanisms on vascular and synapse health are enhanced by Fortasyn, independent of apoE genotype. We further showed the efficacy of a multimodal translational approach, including advanced MR neuroimaging, to study dietary intervention on brain structure and function in aging.

  8. A Dietary Treatment Improves Cerebral Blood Flow and Brain Connectivity in Aging apoE4 Mice.

    Science.gov (United States)

    Wiesmann, Maximilian; Zerbi, Valerio; Jansen, Diane; Haast, Roy; Lütjohann, Dieter; Broersen, Laus M; Heerschap, Arend; Kiliaan, Amanda J

    2016-01-01

    APOE ε4 (apoE4) polymorphism is the main genetic determinant of sporadic Alzheimer's disease (AD). A dietary approach (Fortasyn) including docosahexaenoic acid, eicosapentaenoic acid, uridine, choline, phospholipids, folic acid, vitamins B12, B6, C, and E, and selenium has been proposed for dietary management of AD. We hypothesize that the diet could inhibit AD-like pathologies in apoE4 mice, specifically cerebrovascular and connectivity impairment. Moreover, we evaluated the diet effect on cerebral blood flow (CBF), functional connectivity (FC), gray/white matter integrity, and postsynaptic density in aging apoE4 mice. At 10-12 months, apoE4 mice did not display prominent pathological differences compared to wild-type (WT) mice. However, 16-18-month-old apoE4 mice revealed reduced CBF and accelerated synaptic loss. The diet increased cortical CBF and amount of synapses and improved white matter integrity and FC in both aging apoE4 and WT mice. We demonstrated that protective mechanisms on vascular and synapse health are enhanced by Fortasyn, independent of apoE genotype. We further showed the efficacy of a multimodal translational approach, including advanced MR neuroimaging, to study dietary intervention on brain structure and function in aging. PMID:27034849

  9. First `Winged&apos; and `X&apos;-shaped Radio Source Candidates

    Energy Technology Data Exchange (ETDEWEB)

    Cheung, C.C.

    2007-01-22

    A small number of double-lobed radio galaxies (17 from our own census of the literature) show an additional pair of low surface brightness &apos;'wings'&apos;, thus forming an overall &apos;'X'&apos;-shaped appearance. The origin of the wings in these radio sources is unclear. They may be the result of back-flowing plasma from the currently active radio lobes into an asymmetric medium surrounding the active nucleus, which would make these ideal systems in which to study thermal/non-thermal plasma interactions in extragalactic radio sources. Another possibility is that the wings are the aging radio lobes left over after a (rapid) realignment of the central supermassive black-hole/accretion disk system due perhaps to a merger. Generally, these models are not well tested; with the small number of known examples, previous works focused on detailed case studies of selected sources with little attempt at a systematic study of a large sample. Using the VLA-FIRST survey database, we are compiling a large sample of winged and X-shaped radio sources for such studies. As a first step toward this goal, an initial sample of 100 new candidate objects of this type are presented in this paper. The search process is described, optical identifications from available literature data, and basic radio data are presented. From the limited resolution FIRST images ({approx} 5&apos;&apos;), we can already confidently classify a sufficient number of these objects as having the characteristic wing lengths >80% of the active lobes to more than double the number of known X-shaped radio sources. We have also included as candidates, radio sources with shorter wings (<80% wing to lobe length ratios), or simply &apos;'winged'&apos; sources, as it is probable that projection effects are important. Finally, among the candidates are four quasars (z=0.37 to 0.84), and several have morphologies suggestive of Fanaroff-Riley type-I (low-power) radio galaxies. While followup

  10. &apos;Smart Home&apos; and energy efficiency; Smarthome und Energieeffizienz

    Energy Technology Data Exchange (ETDEWEB)

    Grieder, T.; Huser, A.

    2005-07-01

    This comprehensive final report for the Swiss Federal Office of Energy (SFOE) presents the results of a project that examined the power consumption of a &apos;smart home&apos; - a single-family dwelling in Chur, Switzerland. The house&apos;s power consumption is compared with that of a similar dwelling in 1992. The report describes the preparatory work for the project and analyses the power requirements of the various electrical consumers in the house. Comparisons are made with the electricity consumption of an average Swiss house. Possibilities of increasing efficiency are looked at. Consumption is extrapolated to national level on the basis of previous studies. A comprehensive appendix with details on the house&apos;s usage, its inhabitants&apos; needs, its multimedia concept and its technical equipment completes the report.

  11. Readers&apos; Responses When Characters Act on Completed Goals: Impact of Characters&apos; Mental States and Readers&apos; Task Focus

    Science.gov (United States)

    Foy, Jeffrey E.; Gerrig, Richard J.

    2014-01-01

    Research has demonstrated that readers track the objective status of characters&apos; goals (i.e., whether the goals have been completed). We suggest that readers also use characters&apos; subjective representations--characters&apos; mental states with respect to goals--to comprehend actions. We explored circumstances in which local information…

  12. Longitudinal Links between Fathers&apos; and Mothers&apos; Harsh Verbal Discipline and Adolescents&apos; Conduct Problems and Depressive Symptoms

    Science.gov (United States)

    Wang, Ming-Te; Kenny, Sarah

    2014-01-01

    This study used cross-lagged modeling to examine reciprocal relations between maternal and paternal harsh verbal discipline and adolescents&apos; conduct problems and depressive symptoms. Data were from a sample of 976 two-parent families and their children (51% males; 54% European American, 40% African American). Mothers&apos; and fathers&apos;…

  13. Fathers&apos; and Mothers&apos; Home Literacy Involvement and Children&apos;s Cognitive and Social Emotional Development: Implications for Family Literacy Programs

    Science.gov (United States)

    Baker, Claire E.

    2013-01-01

    The relations between fathers&apos; and mothers&apos; home literacy involvement at 24 months and children&apos;s cognitive and social emotional development in preschool were examined using a large sample of African American and Caucasian families ("N" = 5190) from the Early Childhood Longitudinal Study-Birth Cohort (ECLS-B). Hierarchical…

  14. Standard molar enthalpies of formation of 3&apos;- and 4&apos;-nitroacetophenones

    Energy Technology Data Exchange (ETDEWEB)

    Ribeiro da Silva, Manuel A.V., E-mail: risilva@fc.up.p [Centro de Investigacao em Quimica, Department of Chemistry and Biochemistry, Faculty of Science, University of Porto, Rua do Campo Alegre, 687, P-4169-007 Porto (Portugal); Amaral, Luisa M.P.F. [Centro de Investigacao em Quimica, Department of Chemistry and Biochemistry, Faculty of Science, University of Porto, Rua do Campo Alegre, 687, P-4169-007 Porto (Portugal)

    2011-06-15

    Research highlights: The standard molar enthalpies of formation, in the condensed phase, of 3&apos;- and 4&apos;-nitroacetophenones have been determined by combustion calorimetry. The vapor pressures of the crystalline 3&apos;- and 4&apos;-nitroacetophenones were measured as function of temperature by the Knudsen effusion mass loss technique. The standard molar enthalpies, entropies and Gibbs functions of sublimation, at T = 298.15 K, were calculated for both compounds. - Abstract: The standard (p{sup o} = 0.1 MPa) molar enthalpies of formation, in the condensed phase, of 3&apos;- and 4&apos;-nitroacetophenones, presented in this work, were obtained from measurements of their combustion energies, at T = 298.15 K, using a static bomb calorimeter. The vapor pressures of the two crystalline 3&apos;- and 4&apos;-nitroacetophenones were measured as a function of temperature by the Knudsen effusion mass loss technique. The standard molar enthalpies of sublimation, at T = 298.15 K, were derived from the Clausius-Clapeyron equation. The standard molar enthalpies, entropies, and Gibbs functions of sublimation, at T = 298.15 K, were calculated for the two compounds. The experimental values obtained were used to calculate the standard molar enthalpies of formation of 3&apos;- and 4&apos;-nitroacetophenones, in the gaseous phase, as {Delta}{sub f}H{sub m}{sup 0}(g)=-(99.4{+-}1.6)kJ{center_dot}mol{sup -1} and {Delta}{sub f}H{sub m}{sup 0}(g)=-(99.1{+-}1.7)kJ{center_dot}mol{sup -1}, respectively, and these derived values are analyzed in terms of structural enthalpic increments.

  15. Accreting planets as dust dams in &apos;transition&apos; disks

    Energy Technology Data Exchange (ETDEWEB)

    Owen, James E., E-mail: jowen@cita.utoronto.ca [Canadian Institute for Theoretical Astrophysics, 60 St. George Street, Toronto, M5S 3H8 (Canada)

    2014-07-01

    We investigate under what circumstances an embedded planet in a protoplanetary disk may sculpt the dust distribution such that it observationally presents as a &apos;transition&apos; disk. We concern ourselves with &apos;transition&apos; disks that have large holes (≳ 10 AU) and high accretion rates (∼10{sup –9}-10{sup –8} M {sub ☉} yr{sup –1}), particularly, those disks which photoevaporative models struggle to explain. Adopting the observed accretion rates in &apos;transition&apos; disks, we find that the accretion luminosity from the forming planet is significant, and can dominate over the stellar luminosity at the gap edge. This planetary accretion luminosity can apply a significant radiation pressure to small (s ≲ 1 μm) dust particles provided they are suitably decoupled from the gas. Secular evolution calculations that account for the evolution of the gas and dust components in a disk with an embedded, accreting planet, show that only with the addition of the radiation pressure can we explain the full observed characteristics of a &apos;transition&apos; disk (NIR dip in the spectral energy distribution (SED), millimeter cavity, and high accretion rate). At suitably high planet masses (≳ 3-4 M{sub J} ), radiation pressure from the accreting planet is able to hold back the small dust particles, producing a heavily dust-depleted inner disk that is optically thin to infrared radiation. The planet-disk system will present as a &apos;transition&apos; disk with a dip in the SED only when the planet mass and planetary accretion rate are high enough. At other times, it will present as a disk with a primordial SED, but with a cavity in the millimeter, as observed in a handful of protoplanetary disks.

  16. Activity report 1998; Rapport d&apos;activite 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The &apos;&apos;Institut de Protection et de Surete Nucleaire&apos;&apos; (IPSN), carries out researches and expert studies needed to manage nuclear risks and their consequences on people and environment. These activities cover the installation safety, the radioactive matter transport, the public health and environmental control, the nuclear matters safety and control and the crisis situation management. The IPSN have got also a mission of public information and participates to international actions in the domain of scientific researches or expert&apos;s report. This annual report presents the highlights of the year 1998, information on staff, budgets and geographical situation. Then technical and scientific papers gathers the activities of the year covered by the IPSN: the &apos;&apos;Free Tribune&apos;&apos;, installations and radioactive wastes safety, crisis and nuclear matter management, public health and environment control, international cooperation. (A.L.B.)

  17. Turner&apos;s prize[London transport policy

    Energy Technology Data Exchange (ETDEWEB)

    Sherrington, M.

    2000-10-26

    The article describes Ken Livingstone&apos;s plans for solving London&apos;s traffic problems: Derek Turner will be &apos;in charge of the capital&apos;s streets&apos; but Livingstone will chair the board meetings. The radical new scheme will apply to both the Greater London Authority, its transport branch Transport for London (TfL) and 33 London Boroughs. Within TfL there is a core division called &apos;street management services&apos; which has five area teams for day-to-day street management including road maintenance and street lighting. Other departments are communications, support services, traffic technology services, service development and performance, a London bus department and a department concentrating on congestion charging. There are plans to support pedestrians and cyclists but &apos;bus travel is really what it is all about&apos;.

  18. Xic&apos; Production at BABAR

    Energy Technology Data Exchange (ETDEWEB)

    Aubert, B

    2006-09-26

    Using 232 fb{sup -1} of data collected by the BABAR detector, the {Xi}&apos;{sub c}{sup +} and {Xi}&apos;{sub c}{sup 0} baryons are reconstructed through the decays: {Xi}&apos;{sub c}{sup +} {yields} {Xi}{sub c}{sup +}{gamma} and {Xi}&apos;{sub c}{sup 0} {yields} {Xi}{sub c}{sup 0}{gamma}, where {Xi}{sub c}{sup +} {yields} {Xi}{sup -}{pi}{sup +}{pi}{sup +} and {Xi}{sub c}{sup 0} {yields} {Xi}{sup -} {pi}{sup +}. By measuring the efficiency-corrected yields in different intervals of the center-of-mass momentum, the production rates from B decays and from the continuum are extracted. For production from B decays, the branching fractions are found to be {Beta}(B {yields} {Xi}&apos;{sub c}{sup +}X) x {Beta}({Xi}{sub c}{sup +} {yields} {Xi}{sup -}{pi}{sup +}{pi}{sup +}) = [1.69 {+-} 0.17 (exp.) {+-} 0.10 (model)] x 10{sup -4} and {Beta}(B {yields} {Xi}&apos;{sub c}{sup 0}X) x {Beta} {Xi}{sub c}{sup 0} {yields} {Xi}{sup -} {pi}{sup +} = [0.67 {+-} 0.07 (exp.) {+-} 0.03 (model)] x 10{sup -4}. For production from the continuum the cross-sections are found to be {sigma}(e{sup +}e{sup -} {yields} {Xi}&apos;{sub c}{sup +}X) x {Beta}({Xi}{sub c}{sup +} {yields} {Xi}{sup -} {pi}{sup +}{pi}{sup +}) = 141 {+-} 24 (exp.) {+-} 19 (model) fb and {sigma}(e{sup +}e{sup -} {yields} {Xi}&apos;{sub c}{sup 0}X) x {Beta}({Xi}{sub c}{sup 0} {yields} {Xi}{sup -} {pi}{sup +}) = 70 {+-} 11 (exp.) {+-} 6 (model) fb. The helicity angle distributions of {Xi}&apos;{sub c} decays are studied and found to be consistent with J = 1/2.

  19. Reduction in DHA transport to the brain of mice expressing human APOE4 compared to APOE2.

    Science.gov (United States)

    Vandal, Milène; Alata, Wael; Tremblay, Cyntia; Rioux-Perreault, Christine; Salem, Norman; Calon, Frédéric; Plourde, Mélanie

    2014-05-01

    Benefits on cognition from docosahexaenoic acid (DHA, 22 : 6 n-3) intake are absent in humans carrying apolipoprotein E ε4 allele (APOE4), the most important genetic risk factor for Alzheimer's disease (AD). To test the hypothesis that carrying APOE4 impairs DHA distribution, we evaluated plasma and brain fatty acid profiles and uptake of [(14) C]-DHA using in situ cerebral perfusion through the blood-brain barrier in 4- and 13-month-old male and female APOE-targeted replacement mice (APOE2, APOE3, and APOE4), fed with a DHA-depleted diet. Cortical and plasma DHA were 9% lower and 34% higher in APOE4 compared to APOE2 mice, respectively. Brain uptake of [(14) C]-DHA was 24% lower in APOE4 versus APOE2 mice. A significant relationship was established between DHA and apoE concentrations in the cortex of mice (r(2) = 0.21) and AD patients (r(2) = 0.32). Altogether, our results suggest that lower brain uptake of DHA in APOE4 than in APOE2 mice may limit the accumulation of DHA in cerebral tissues. These data provide a mechanistic explanation for the lack of benefit of DHA in APOE4 carriers on cognitive function and the risk of AD. Using human APOE2, 3, and 4 isoform-specific transgenic mice, we found a lower brain uptake of docosahexaenoic acid (DHA) in APOE4 than in APOE2 mice that may limit the biodistribution of DHA in cerebral tissues. These data provide a mechanistic explanation for the lack of benefit of DHA in APOE4 carriers on cognitive function and the risk of Alzheimer's disease (AD).

  20. Evaluation of the environmental quality objective &apos;A Safe Radiation Environment&apos;; Utvaerdering av miljoekvalitetsmaalet &apos;Saeker straalmiljoe&apos;

    Energy Technology Data Exchange (ETDEWEB)

    Asp, Helene; Brewitz, Erica; Halvarsson, Andreas; Ljungberg, Sophie; Mjoenes, Lars; Wallberg, Petra

    2007-11-15

    The evaluation of the environmental quality objective &apos;A Safe Radiation Environment&apos; is a contribution to the Environmental Objective Council&apos;s assessment of progress towards the national environmental quality objectives. The report describes and evaluates the radiation environment in Sweden, the regulatory instruments, measures carried out and the monitoring programmes. Furthermore, the possibility of achieving the objective and its interim targets is evaluated. New measures and means of control are proposed. The proposals are directed to the government and Parliament, national authorities and other stakeholders in society. The Swedish Radiation Protection Authority (SSI) considers it possible to achieve the objective, but additional efforts are required to ensure success. Environmental monitoring, research on health effects of radiation and supervision are still important areas. Intensified efforts will be needed to change attitudes towards suntanning. Changes in the formulation of the objective and its interim targets are suggested. Today only protection against radiation in the external environment is covered by the objective. Radiation protection work has to consider all. SSI therefore suggests that the objective should extend to include workplaces and indoor environment. For the three interim targets included in &apos;A Safe Radiation Environment&apos;, changes are suggested for the interim targets for radioactive substances and electromagnetic fields. No change is suggested for the interim target for skin cancer