Search results for "BOLD"
showing 10 items of 52 documents
Herbicidal Activity of Peumus boldus and Drimys winterii Essential Oils from Chile
2011
[EN] The essential oil composition of Peumus boldus and Drimys winterii was analyzed by means of capillary GC-FID and GC-MS. More than 96% of the total oil components (43 and 54 compounds, respectively) were identified, with ascaridole (51.17 ± 9.51), p-cymene (16.31 ± 2.52) and 1,8-cineole (14.45 ± 2.99) as the main compounds in P. boldus and ¿-eudesmol (21.65 ± 0.41), followed of elemol (12.03 ± 0.34) and terpinen-4-ol (11.56 ± 1.06) in D. winterii. The herbicidal activity was tested against Amaranthus hybridus and Portulaca oleracea. P. boldus essential oil was the most phytotoxic against both weeds, inhibiting seed germination and seedling growth at all concentrations assayed (0.125-1 ¿…
Effects of Emergence Time and Early Social Rearing Environment on Behaviour of Atlantic Salmon: Consequences for Juvenile Fitness and Smolt Migration
2015
Consistent individual differences in behaviour have been well documented in a variety of animal taxa, but surprisingly little is known about the fitness and life-history consequences of such individual variation. In wild salmonids, the timing of fry emergence from gravel spawning nests has been suggested to be coupled with individual behavioural traits. Here, we further investigate the link between timing of spawning nest emergence and behaviour of Atlantic salmon (Salmo salar), test effects of social rearing environment on behavioural traits in fish with different emergence times, and assess whether behavioural traits measured in the laboratory predict growth, survival, and migration statu…
Humboldt sobre Hermann y Dorothea de Goethe
2015
Esta intervención mía en este contexto tiene que ver con un proyecto de traducción del estudio de Humboldt sobre la epopeya o idilio de Goethe, Hermann y Dorothea. El texto de Humboldt es de 1798. El poema de Goethe, de 1797. El poema de Goethe es una obra en verso, en hexámetros. En una especie de prólogo en verso, asimismo en hexámetros, que Goethe escribió más tarde y que a veces se adjunta a la edición de Hermann y Dorothea, Goethe se define como el último homérida y se remite a la cultura clásica
Geobotany Revisited – A Glimpse at the Blooming and Influential Discipline With Its Strong Roots in the Beauty of Nature and the Pragmatic Need of It…
2022
AbstractThe dreams of Humboldt and many of his successors have not yet come true. Despite the great achievements of the last century, we still do not know the total number of vegetation types or the difference in the patterns of the distribution of diversity above and below the ground, we cannot predict all the effects of climate change on vegetation at the regional and global scale, we do not know the hidden and dark parts of species diversity in most ecosystems, nor are we able to make historical vegetation maps for many areas of the Earth. We also do not know the cultural contribution of many plant communities for the development of human populations and civilization, nor do we know the …
Un condiscípulo español de Alexander von Humboldt en la Bergakademie de Freiberg: Josef Ricarte y su informe sobre el método de amalgamación de Born …
2004
[ES] Se estudia la labor de Joseph Ricarte, pensionado en París y luego en Centroeuropa, para estudiar el método de amalgamación de Born. El trabajo de Ricarte fue especialmente interesante en la Escuela de minas de Schemnitz, a cargo del profesor Antón Ruprecht, en 1787, aunque también se exponen los viajes de aprendizaje con Andrés Manuel del Río por diversas regiones centroeuropeas (Alta y baja Hungría, Austria, Bohemia,etc...) hasta su llegada a Freiberg, en Sajonia, donde estudiaron con A. Werner y fueron compañeros de Alexander von Humboldt. Acompaña al artículo una disertación de Ricarte sobre las mejoras introducidas por Ruprecht al método del barón de Born.
Effect of boldine, secoboldine, and boldine methine on angiotensin II-induced neutrophil recruitment in vivo.
2005
AbstractAngiotensin-II (Ang-II) has inflammatory activity and is involved in different diseases associated with the cardiovascular system. This study has evaluated the effect of boldine (B), and two phenanthrene alkaloids semisynthesized by us, secoboldine (SB) and boldine methine (BM), on Ang-II-induced neutrophil recruitment. Intraperitoneal administration of 1 nM Ang-II induced significant neutrophil accumulation, which was maximal at 4–8 h. BM inhibited neutrophil infiltration into the peritoneal cavity at 4 h and 8 h by 73% and 77%, respectively, SB at 8 h by 55%, and B had no effect on this response. Although BM inhibited the release of cytokine-inducible neutrophil chemoattractant/ke…
Leopold von Ranke. Gli anni della formazione
2005
Prima monografia italiana sull'argomento, nella quale si mostra il posto che Ranke ha nella storia della filosofia classica tedesca.
Control of Portulaca oleracea by boldo and lemon essential oils in different soils
2015
Soil characteristics influence plant growth and can affect the phytotoxicity of the essential oils. In this study chemical composition and herbicidal activity of Peumus boldus Mol. and lemon essential oils in different growing medium against Portulaca oleracea L. was investigated. Ninety-four compounds accounting between 95.5 and 99.8% of the total essential oil were identified by gas chromatography-mass spectrometry in boldo and lemon essential oils. Ascaridole (31.56. ±. 0.15%), p-cymene (21.58. ±. 0.09%) and 1,8-cineole (12.57. ±. 0.13%) were the main compounds in P. boldus whereas large amount of limonene (59.28%) followed of β-pinene (12.96%) and γ-terpinene (10.92%) were found in lemo…
On the reception of Wilhelm von Humboldt’s linguistic ideas in the Soviet Union from the late 1920s to the early 1950s
2015
The present article discusses the Soviet reception of Humboldt’s linguistic ideas, focusing on different interpretations of his ideas during the period between the latter half of the 1920s and the early 1950s. While Humboldt’s idea of the inner form of language was an important ingredient in Shpet’s phenomenology, the attitude towards Humboldt changed radically in the late 1920s and early 1930s when the ‘bolshevization’ of the sciences had reached linguistics. The idea that language, nation, and culture are closely interconnected was at odds with the ‘Marxist’ idea of class-language, according to which linguistic diversity derives from the socio-economic characteristics of societies. In the…
Abnormal synchrony and effective connectivity in patients with schizophrenia and auditory hallucinations
2014
Auditory hallucinations (AH) are the most frequent positive symptoms in patients with schizophrenia. Hallucinations have been related to emotional processing disturbances, altered functional connectivity and effective connectivity deficits. Previously, we observed that, compared to healthy controls, the limbic network responses of patients with auditory hallucinations differed when the subjects were listening to emotionally charged words. We aimed to compare the synchrony patterns and effective connectivity of task-related networks between schizophrenia patients with and without AH and healthy controls. Schizophrenia patients with AH (n = 27) and without AH (n = 14) were compared with healt…