988 resultados para C-128


Relevância:

30.00% 30.00%

Publicador:

Resumo:

The speciose Brazilian Elateridae fauna is characterized by high karyotypic diversity, including one species (Chalcolepidius zonatus Eschscholtz, 1829) with the lowest diploid number within any Coleoptera order. Cytogenetic analysis of Conoderus dimidiatus Germar, 1839, C. scalaris (Germar, 1824,) C. ternarius Germar, 1839, and C. stigmosus Germar, 1839 by standard and differential staining was performed with the aim of establishing mechanisms of karyotypic differentiation in these species. Conoderus dimidiatus, C. scalaris, and C. ternarius have diploid numbers of 2n(male) = 17 and 2n(female) = 18, and a X0/XX sex determination system, similar to that encountered in the majority of Conoderini species. The karyotype of C. stigmosus was characterized by a diploid number of 2n=16 and a neoXY/neoXX sex determination system that was highly differentiated from other species of the genus. Some features of the mitotic and meiotic chromosomes suggest an autosome/ancestral X chromosome fusion as the cause of the neoXY system origin in C. stigmosus. C-banding and silver impregnation techniques showed that the four Conoderus species possess similar chromosomal characteristics to those registered in most Polyphaga species, including pericentromeric C band and autosomal NORs. Triple staining techniques including CMA(3)/DA/DAPI also provided useful information for differentiating these Conoderus species. These techniques revealed unique GC-rich heterochromatin associated with NORs in C. scalaris and C. stigmosus and CMA(3)-heteromorphism in C. scalaris and C. ternarius.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

A total of 2400 samples of commercial Brazilian C gasoline were collected over a 6-month period from different gas stations in the São Paulo state, Brazil, and analysed with respect to 12 physicochemical parameters according to regulation 309 of the Brazilian Government Petroleum, Natural Gas and Biofuels Agency (ANP). The percentages (v/v) of hydrocarbons (olefins, aromatics and saturated) were also determined. Hierarchical cluster analysis (HCA) was employed to select 150 representative samples that exhibited least similarity on the basis of their physicochemical parameters and hydrocarbon compositions. The chromatographic profiles of the selected samples were measured by gas chromatography with flame ionisation detection and analysed using soft independent modelling of class analogy (SIMCA) method in order to create a classification scheme to identify conform gasolines according to ANP 309 regulation. Following the optimisation of the SIMCA algorithm, it was possible to classify correctly 96% of the commercial gasoline samples present in the training set of 100. In order to check the quality of the model, an external group of 50 gasoline samples (the prediction set) were analysed and the developed SIMCA model classified 94% of these correctly. The developed chemometric method is recommended for screening commercial gasoline quality and detection of potential adulteration. (c) 2007 Elsevier B.V. All rights reserved.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This study investigated the postprandial plasma responses of carotenoids for 24 h after feeding five specific breakfast beverages; four of which had low or no carotenoid content. In seven fasting healthy elderly female subjects a blood sample (baseline) was obtained, after which they were given a breakfast beverage, containing one of the following: 1) strawberries (240 g); 2) ascorbic acid (1250 mg); 3) spinach (294 g); 4) red wine (300 mL); and 5) control (breakfast beverage only). Blood samples were collected at 0.5, 1, 4, 7, 11, 15 and 24 h. Plasma carotenoids were measured using HPLC. No significant differences were found in the levels of the plasma carotenoids measured among the various treatments at baseline. In the spinach treatment, plasma lutein, zeaxanthin and β-carotene levels at 7, 11, 15 and 24 h were significantly higher than those at baseline, as expected. All of the carotenoids measured in the control and vitamin C treatments, at subsequent sampling times were not significantly different from those at baseline. However, for most carotenoids, strawberry and red wine feeding resulted in significantly lower carotenoids values from baseline at 11 and 15 h. Subjects who received a diet with low levels of carotenoids, but whose postprandial plasma levels of carotenoids remain steady, might be explained by a mechanism that promotes secretion of carotenoids into the circulation. Assuming that plasma carotenoids are being used over time, we hypothesize that strawberries and red wine contain some substances that interfere with the secretion of carotenoids into the circulation.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Background: Neuropsychiatric symptoms (NPS) affect almost all patients with dementia and are a major focus of study and treatment. Accurate assessment of NPS through valid, sensitive and reliable measures is crucial. Although current NPS measures have many strengths, they also have some limitations (e.g. acquisition of data is limited to informants or caregivers as respondents, limited depth of items specific to moderate dementia). Therefore, we developed a revised version of the NPI, known as the NPI-C. The NPI-C includes expanded domains and items, and a clinician-rating methodology. This study evaluated the reliability and convergent validity of the NPI-C at ten international sites (seven languages). Methods: Face validity for 78 new items was obtained through a Delphi panel. A total of 128 dyads (caregivers/patients) from three severity categories of dementia (mild = 58, moderate = 49, severe = 21) were interviewed separately by two trained raters using two rating methods: the original NPI interview and a clinician-rated method. Rater 1 also administered four additional, established measures: the Apathy Evaluation Scale, the Brief Psychiatric Rating Scale, the Cohen-Mansfield Agitation Index, and the Cornell Scale for Depression in Dementia. Intraclass correlations were used to determine inter-rater reliability. Pearson correlations between the four relevant NPI-C domains and their corresponding outside measures were used for convergent validity. Results: Inter-rater reliability was strong for most items. Convergent validity was moderate (apathy and agitation) to strong (hallucinations and delusions; agitation and aberrant vocalization; and depression) for clinician ratings in NPI-C domains. Conclusion: Overall, the NPI-C shows promise as a versatile tool which can accurately measure NPS and which uses a uniform scale system to facilitate data comparisons across studies. Copyright © 2010 International Psychogeriatric Association.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Pós-graduação em Doenças Tropicais - FMB

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Die Dreispektrometeranlage der A1-Kollaboration am MainzerElektronenbeschleuniger MAMI wurde im Rahmen dieser Arbeitverwendet, um die Elektrodisintegration des Deuteronsmit Hilfe der Reaktion d(e,e'p)n zu untersuchen. Im ersten Teil der Untersuchungen wurde die longitudinaleund transversale Strukturfunktion aus denWirkungsquerschnitten extrahiert. Die Zentralwerte derkinematischen Parameter waren dabei wie folgt eingestellt:1) Der Impulsübertrag wurde für alle Messungen auf 450 MeV/c festgelegt.2) Das Proton wurde in Richtung des Impulsübertrags nachgewiesen (parallele Kinematik).3) Vier Einstellungen des Energieübertrags, und damit korrespondierend des fehlenden Impulses, wurden gemessen: Energieübertrag / MeV : 128, 226, 289, 360. Fehlender Impuls / (MeV/c): 50, 200, 275, 350.4) Für jede dieser vier Kinematiken wurden mindestens drei verschiedene Einschußenergien bzw. Elektronenstreuwinkel eingestellt, um die Strukturfunktionen mit Hilfe der Rosenbluth-Separation zu bestimmen. Im zweiten Teil der Untersuchungen wurde derWirkungsquerschnitt für hohe fehlende Impulse bestimmt.Dessen Zentralwerte wurden von 30 MeV/c bis 906 MeV/cvariiert, wobei für die hohen fehlenden Impulse das Protonweit außerhalb der Richtung des Impulsübertragesnachzuweisen war. Der Energieübertrag lag dabei zwischen180 MeV und 600 MeV und der Impulsübertrag zwischen608 MeV/c und 698 MeV/c.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

2 Briefe zwischen der Buchhandlung Peter Naacher und Max Horkheimer, 1966-1968; 1 Brief von E. Nabulon an Max Horkheimer, 1971; 13 Briefe und Beilage zwischen dem Dozenten Georg Nádor und Max Horkheimer, 1964-1967; 4 Briefe zwischen Cornelia Nass und Max Horkheimer sowie der Beilage: Vortrag von Val. Giscard d'Estaing über "die neue Gesellschaft" Brüssel 1970, 1970-1972; 6 Briefe zwischen Else Nassauer und Max Horkheimer, 1967-1973; 3 Briefe zwischen S.Andhil Fineberg und Max Horkheimer, 1967-1969; 1 Brief von Dr. med. Horst Naujoks an Max Horkheimer, 1963; 3 Briefe von Max Horkheimer an die Zeitschrift Nebelspalter, 1964-1969; 7 Briefe zwischen Max Horkheimer und Carl Nedelmann, 1964; 2 Briefe und Beilage zwischen Dr. Renate Neef-Cramer und Max Horkheimer, 1972; 3 Briefe zwischen Walter Neef und Max Horkheimer, 1965; 1 Brief an Dr. Oskar Negt von Max Horkheimer, 1964; 9 Briefe zwischen Dr. Günther Nenning und Max Horkheimer, 1962-1972; 4 Briefe zwischen der Neuen Deutschen Biographie und Max Horkheimer, 1969-1970; 4 Briefe und Beilage zwischen der Wochenschrift Neue Politik und Max Horkheimer, 1971; 6 Briefe zwischen Joachim Günther und Max Horkheimer, 1969-1970; 10 Briefe zwischen der Neuen Rundschau Rudolf Hartung und Max Horkheimer, 1964-1968; 1 Brief an Heinz Friedrich von Max Horkheimer, 1969; 9 Briefe zwischen Dr. Günther Nenning und Max Horkheimer, 1969-1972; 4 Briefe zwischen dem Rektor Günther Neuhardt und Max Horkheimer, 1970; 7 Briefe zwischen Rexa Neumeister und Max Horkheimer, 1967; 28 Briefe und Beilage zwischen dem Professor Ludwig Neundörfer und Max Horkheimer, 1955-1971; 1 Brief an den Professor John J. Neunaier von Max Horkheimer, 1965; 2 Briefe zwischen der Newton Compton Editori und Max Horkheimer, 1970; 3 Briefe zwischen der New York Times und Max Horkheimer, 1959-1960; 4 Briefe und Beilage zwischen Stephen Ney und Max Horkheimer, 1967; 4 Briefe und Beilage zwischen dem Student Claus Niederberger und Max Horkheimer, 1973; 1 Brief an Dr. Friedrich Niewöhner von Max Horkheimer, 1973; 4 Briefe zwischen dem Professor August Nietschke und Max Horkheimer, 1965; 1 Dankesbrief von N.N. an Maidon Horkheimer, 1963; 1 Brief [Hinweis auf eine Krebstherapie] von N.N. an Max Horkheimer; 1 Brief [gegen den Kommunismus] von N.N. an Max Horkheimer, 1955; 1 Brief [Ansichtskarte, Unterzeichnet mit D.C.] von N.N. an Max Horkheimer, 1953; 1 Telegramm [Mitteilung über Schiffverbindung] von N.N. an Max Horkheimer, 1949; 3 Briefe und Beilage zwischen dem Northern Life Insurance Co. Seattle, Wash. und Max Horkheimer, 1951-1953; 4 Briefe und Beilage zwischen den Nürnberger Nachrichten und Max Horkheimer sowie einem Interview mit Max Horkheimer, 1973; 1 Brief von der Nymphenburger Verlagshandlung an Max Horkheimer, 1968;

Relevância:

30.00% 30.00%

Publicador:

Relevância:

30.00% 30.00%

Publicador: