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Sample records for pygocentrus cariba humboldt

  1. Humboldt's works on Mexico

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    Ulrike Leitner

    2000-10-01

    Full Text Available Article in English, Abstracts in Spanish and English. Humboldt wrote about Mexico from the perspective of a scientific explorer and naturalist. His works include his diaries, the Essai politique sur le royaume de la Nouvelle-Espagne, the Tablas géograficas, the Vues des Cordillères and a geographic atlas. Concerning the scientific aspect, the lack of a section on Mexico in the Relation historique is not a real deficit, since this can be found in the Essai. But only the diaries and letters from the journey, both published by the Alexander-von-Humboldt Research Centre, Berlin, can be considered an adequate substitute.The following will show the origin of Humboldt's writings on Mexico, offer historical and bibliographical facts and present the publications "Beiträge zur Alexander von Humboldt-Forschung", as well as Humboldt’s handwritten estate as far as they are available to us.

  2. Humboldt Bay Orthoimages

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set consists of 0.5-meter pixel resolution, four band orthoimages covering the Humboldt Bay area. An orthoimage is remotely sensed image data in which...

  3. Humboldt in Goethes Bibliothek

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    Thomas Schmuck

    2016-05-01

    Full Text Available Zusammenfassung In Goethes privater Bibliothek im Goethehaus in Weimar ist Alexander von Humboldt mehrfach vertreten: durch persönlich übersandte Bücher, durch Broschüren und Grafiken. Einige dieser Publikationen Humboldts tragen handschriftliche Widmungen. Die Anmerkungen Goethes, seine Bearbeitungsspuren, die Bemerkungen im Tagebuch und nicht zuletzt der Briefwechsel geben Aufschluss über eine komplizierte Beziehung, die von Wohlwollen und von wissenschaftlichem Interesse an der Arbeit des anderen geprägt war, im Alter aber, insbesondere bei Humboldt, spürbar distanzierter wurde. Erstmals werden in diesem Beitrag alle handschriftlichen Widmungen Humboldts an Goethe abgebildet und die Publikationen Humboldts in Goethes Bibliothek in einen wissenschaftshistorischen und lebensgeschichtlichen Kontext gestellt. Summary Goethe’s private library at his residence in Weimar contains many traces of Alexander von Humboldt: personally submitted books, booklets, and graphics. Some of these publications bear handwritten dedications by Humboldt. Goethe’s commentaries, his tool marks, the remarks in the diaries, and not least the correspondence provide information about a complicated relationship that was shaped by shared scientific interests and mutual esteem. Only in later years this relationship deteriorated. In this contribution all handwritten dedications to Goethe are presented for the first time. Humboldt’s publications at the library are discussed in the context of history of sciences and biography. Resumen En la biblioteca privada de la residencia Goethe en Weimar se encuentran múltiples huellas de Alejandro de Humboldt: libros enviados personalmente, folletines y láminas. Algunas de estas publicaciones incluyen dedicatorias manuscritas por Humboldt. Los comentarios de Goethe, la traza de sus apuntes en los diarios y también la correspondencia nos informan sobre una relación complicada entre el interés científico y la cortes

  4. Alexander von Humboldts Weltbild

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    Eberhard Knobloch

    2009-10-01

    Full Text Available Article in German. Abstracts in German and English. The paper is divided into five sections. It begins by showing the similarity between Humboldt's world view and that of the Pythagoreans. It inquires into Humboldt's notion of nature that comprehends natura naturans and natura naturata as well. Numbers are powers of the univers. They especially occur in the 'only decisive method' that is in the method of mean values. This method makes it possible to recognize the law guiding the changes of variable quantities. The botanical arithmetic and earth magnetism provide examples. Finally the paper explains how Humboldt combined the three possible approaches to the world that is thinking, acting, and regarding by means of the notion of knowledge.

  5. Alejandro Von Humboldt

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    Gerardo Paz Otero

    1965-09-01

    Full Text Available Diverso fue y sigue siéndolo, el destino de los dos hermanos Humboldt, Guillermo y Alejandro. Sino que se inicia con el nacimiento: Guillermo, el mayor, nace el 22 de junio de 1767 en Potsdam, residencia de los emperadores prusianos, la ciudad de los palacios imperiales, el imperio del militarismo germano; su cuna se meció cerca al palacete de Sans-Soussi, donde Federico el Grande forja ba el poderío de Prusia, cultivaba las ciencias y las artes, anfitrionaba a los intelectuales de Europa, y era "vasallo espiritual de Volta ire", según la aguda frase de Goethe. Alejandro viene al mundo dos años después (14 de septiembre de 1769 en Berlín, en la casa burguesa de la Jagerstrasse (calle del cazador que su madre Elizabeth von Humboldt heredara de su primer esposo.

  6. Metazoan endoparasites of Pygocentrus nattereri (Characiformes: Serrasalminae in the Negro River, Pantanal, Brazil

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    Wagner Vicentin

    Full Text Available In the period of October 2007 to August 2008, 152 specimens ofPygocentrus nattereri were caught in the Negro River in the Nhecolândia region, central Pantanal wetland, State of Mato Grosso do Sul, Brazil. The specimens were necropsied and a total of 4,212 metazoan endoparasites were recovered, belonging to 10 taxons:Procamallanus (Spirocamallanusinopinatus, Philometridae gen. sp.,Eustrongylides sp., Brevimulticaecum sp.,Contracaecum sp. (Nematoda, Echinorhynchus paranensis (Acanthocephala, Leiperia gracile,Sebekia oxycephala, Subtriquetra sp. 1 andSubtriquetra sp. 2 (Pentastomida. This is the first record of two parasite species from P. nattereri: E. paranensis and L. gracile.

  7. Feeding chronology of juvenile piranhas, Pygocentrus notatus, in the Venezuelan llanos

    Science.gov (United States)

    Nico, L.G.

    1990-01-01

    During the 1988 rainy season, I studied the 24 h feeding chronology of juvenile (40–68 mm standard length) piranhas, Pygocentrus notatus (Characidae: Serrasalminae) from a natural population inhabiting a small savanna stream in Apure State, Venezuela. Stomach contents analyses, supported by laboratory determinations of digestion rate, showed that these fish are primarily diurnal carnivores. Predatory activity on 4–5 August 1988 increased markedly after sunrise, peaked around 1100 h, and essentially stopped after sunset. Means of stomach content weight-to-fish weight ratios among the periods sampled were significantly different. Small fish were the major prey at all hours (81% of total prey volume). Underlying factors responsible for the observed 24 h feeding patterns were not investigated, but avoidance of predation by adult piranhas, which were very active near sunset, may have been important.

  8. Straminipilous organisms growing on herbivorous pirapitinga (Piaractus brachypomus) and carnivorous piranha (Pygocentrus nattereri) from Poland.

    Science.gov (United States)

    Czeczuga, B; Godlewska, A; Mazalska, B; Muszyńska, E

    2010-05-01

    We investigated the growth of straminipilous organisms on the skin, muscles and liver of herbivorous pirapitinga (Piaractus brachypomus) and carnivorous piranha (Pygocentrus nattereri) in water of three different eutrophication levels. Sixteen straminipilous organism species were found growing on the investigated body parts of both species of fish used as baits. The higher number of species was found on the baits of carnivorous species (15) when compared with the ones from the herbivorous pirapitinga (10 species). The highest number of straminipilous organisms species developed on the skin of both species of fish. The highest number of species of straminipilous organisms was observed growing in the water of the BiaBa river (middle eutrophication), while the lowest number occurred in the baits of vessels with water from the Dojlidy pond (low eutrophication).

  9. Histological, surface ultrastructural, and histochemical study of the stomach of red piranha, Pygocentrus nattereri (Kner

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    Ghosh Saroj Kumar

    2015-12-01

    Full Text Available The structural characterization and function of the stomach in the omnivore Pygocentrus nattereri were described using light and scanning electron microscopy. The sac-like stomach was morphologically divided into the cardiac and pyloric regions. The histological structure of the stomach consisted of four layers of the mucosa, submucosa, muscularis, and serosa. The superficial epithelium of the cardiac stomach was lined with columnar epithelial cells and the glandular epithelium contained numerous gastric glands. Gastric glands were completely absent in the pyloric portion. The mucosal surface of the stomach was a meshwork of various folds, provided with oval or rounded columnar epithelial cells which were densely packed with short, stubby microvilli. The occasional presence of conspicuous gastric pits was surrounded by epithelial cells. The localization and chemical nature of acid and neutral mucins in the various cells of the stomach was studied by employing combined the Alcian Blue-Periodic Acid Schiff (AB-PAS technique. The deposition of glycogen was detected in the gastric glands as well as in the epithelial lining of the stomach. The utmost reactions for protein and tryptophan were recorded in the gastric glands of mucosa. The cellular organization and histochemical characterization of the stomach are discussed in relation to the feeding and digestion of the fish concerned.

  10. Aus dem Humboldt-Nachlaß

    OpenAIRE

    Leitner, Ulrike

    2009-01-01

    Der Nachlaß Humboldts in Krakau enthält die von Humboldt über Mexiko und Kuba gesammelten Materialien. Darunter befindet sich ein Manuskript mit der Beschreibung der Pyramidenanlage von Teotihuacan von Juan José de Oteyza, den Humboldt am Real Seminario de Minería in Mexiko-Stadt kennengelernt hatte. Alexander von Humboldt selbst hat diese Pyramidenanlage nicht besichtigt. In derartigen Fällen hat er sein weitreichendes Informationsnetz zur Ergänzung seiner eigenen Beobachtungen in den Tagebü...

  11. En el centenario de Humboldt

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    Guillermo Hernández de Alba

    1969-05-01

    Full Text Available Los cinco años empleados por el Barón Alejandro de Humboldt en sus exploraciones de los dominios españoles de ultramar, en compañía de su alter ego, meritísimo Aimé Bonpland, constituyen, como lo expresó uno de sus biógrafos, "la empresa más grandiosa de un particular alemán y un sacrificio hecho únicamente en interés de las ciencias"

  12. Humboldt Bay, California Benthic Habitats 2009 Substrate

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    National Oceanic and Atmospheric Administration, Department of Commerce — Humboldt Bay is the largest estuary in California north of San Francisco Bay and represents a significant resource for the north coast region. Beginning in 2007 the...

  13. Humboldt Bay, California Benthic Habitats 2009 Geoform

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Humboldt Bay is the largest estuary in California north of San Francisco Bay and represents a significant resource for the north coast region. Beginning in 2007 the...

  14. Humboldt Bay, California Benthic Habitats 2009 Geodatabase

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Humboldt Bay is the largest estuary in California north of San Francisco Bay and represents a significant resource for the north coast region. Beginning in 2007 the...

  15. Humboldt Bay, California Benthic Habitats 2009 Biotic

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Humboldt Bay is the largest estuary in California north of San Francisco Bay and represents a significant resource for the north coast region. Beginning in 2007 the...

  16. Humboldt Bay Benthic Habitats 2009 Aquatic Setting

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    National Oceanic and Atmospheric Administration, Department of Commerce — Humboldt Bay is the largest estuary in California north of San Francisco Bay and represents a significant resource for the north coast region. Beginning in 2007 the...

  17. Humboldt, California 1 arc-second DEM

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 1-second Humboldt, California Elevation Grid provides bathymetric data in ASCII raster format of 1-second resolution in geographic coordinates. This grid is...

  18. Erkundung und Erforschung Alexander von Humboldts Amerikareise

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    Eberhard Knobloch

    2006-10-01

    Full Text Available Article in German, Abstracts in English and German.In a similar way as Adalbert Stifter's narrator in the novel “Late summer” A. v. Humboldt combined exploration with research, fondness for travelling with striving for findings during his travel through South America. Humboldt clearly indicated his double aim: to report on the visited countries, to collect facts in order to improve physical geography. The treatise consists of five sections: object, route, methods, results, evaluation.

  19. Geschichte der Natur bei Alexander von Humboldt

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    Christian Helmreich

    2009-05-01

    Full Text Available Article in German, Abstracts in English, German and French.This article analyses the importance of an historical view of nature in the works of Alexander von Humboldt. In several of his first writings, Humboldt seems to outline the importance of what one may call history of nature. But even before his famous American travel, his position changed and he became reluctant to accept the seriousness of historical enquiry in the area of natural sciences: if we want to reconstruct the past state of nature, we cannot rely on empirical proofs; and history of nature is therefore necessarily based on uncertain hypotheses. Humboldt kept his sceptical attitude in the first decades of the 19th century, despite the positive results of the palaeontological researches of his scientific colleagues. However, he gradually convinced himself of the scientific interest of historical investigations in the natural sciences. The Cosmos paradoxally displays two apparently conflicting points of view: in his methodological remarks, Humboldt maintains that precise accounts of the past state of nature are out of reach of human knowledge, yet elsewhere in the same Cosmos he gives broad and rather vivid descriptions of the eventful history of nature.

  20. Nematodes in Hoplerytrinus unitaeniatus, Hoplias malabaricus and Pygocentrus nattereri (pisces characiformes in Marajó Island, Brazil Nematóides em Hoplerytrinus unitaeniatus, Hoplias malabaricus e Pygocentrus nattereri (pisces characiformes na Ilha de Marajó, Brasil

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    Raimundo Nonato Moraes Benigno

    2012-06-01

    Full Text Available The aim of this study was to evaluate the tegument, musculature and mesentery of 102 specimens of Hoplerytrinus unitaeniatus, 104 of Hoplias malabaricus and 101 of Pygocentrus nattereri, from Arari Lake, Marajó Island, State of Pará, Brazil. Were identified the nematodes Contracaecum sp., Eustrongylides sp. and Procamallanus sp. Contracaecum sp. was the most prevalent, with rates of 84.31% (H. unitaeniatus, 95.19% (H. malabaricus, and 89.11% (P. nattereri. The highest prevalences of Eustrongylides sp. occurred in H. unitaeniatus (56.86% and H. malabaricus (53.84%. Procamallanus sp. was only collected in the mesentery. Specimens of Eustrongylides sp. collected from the musculature were 91.9% of its population. Among the nematodes found in the mesentery, 98.34% were Contracaecum sp. with a mean intensity (MI of 7.92 ± 8.11 (H. unitaeniatus, 8.49 ± 8.34 (H. malabaricus and 7 ± 6.40 (P. nattereri. Contracaecum sp. presented the highest MI (8.49 ± 8.34 and mean abundance (8.09 ± 8.34. The highest MI values were observed in the mesentery. Eustrongylides sp. presented MI of 2.65 ± 3.21 (H. unitaeniatus, 3.41 ± 3.27 (H. malabaricus and 2.17 ± 1.18 (P. nattereri. Nematodes with zoonotic potential that were found with high prevalence, shows the importance of actions by the health authorities.Examinou-se o tegumento, mesentério e musculatura de 102 espécimes de Hoplerytrinus unitaeniatus, 104 de Hoplias malabaricus e 101 de Pygocentrus nattereri, do Lago Arari, Ilha do Marajó, Estado do Pará, Brasil. Foram identificados os nematóides Contracaecum sp., Eustrongylides sp. e Procamallanus sp. nas três espécies de peixes. Contracaecum sp. foi o mais prevalente, com índices de 84,31% (H. unitaeniatus, 95,19% (H. malabaricus e 89,11% (P. nattereri. As maiores prevalências de Eustrongylides sp. foram observadas em H. unitaeniatus (56,86% e H. malabaricus (53,84%. Procamallanus sp. só foi coletado no mesentério, sendo o sítio de infec

  1. Genetic differentiation in red-bellied piranha populations (Pygocentrus nattereri, Kner, 1858) from the Solimões-Amazonas River.

    Science.gov (United States)

    Dos Santos, Carlos Henrique Dos A; de Sá Leitão, Carolina S; Paula-Silva, Maria de N; Almeida-Val, Vera Maria F

    2016-06-01

    Red-bellied piranhas (Pygocentrus nattereri) are widely caught with different intensities throughout the region of Solimões-Amazonas River by local fishermen. Thus, the management of this resource is performed in the absence of any information on its genetic stock. P. nattereri is a voracious predator and widely distributed in the Neotropical region, and it is found in other regions of American continent. However, information about genetic variability and structure of wild populations of red-bellied piranha is unavailable. Here, we describe the levels of genetic diversity and genetic structure of red-bellied piranha populations collected at different locations of Solimões-Amazonas River system. We collected 234 red-bellied piranhas and analyzed throughout eight microsatellite markers. We identified high genetic diversity within populations, although the populations of lakes ANA, ARA, and MAR have shown some decrease in their genetic variability, indicating overfishing at these communities. Was identified the existence of two biological populations when the analysis was taken altogether at the lakes of Solimões-Amazonas River system, with significant genetic differentiation between them. The red-bellied piranha populations presented limited gene flow between two groups of populations, which were explained by geographical distance between these lakes. However, high level of gene flow was observed between the lakes within of the biological populations. We have identified high divergence between the Catalão subpopulation and all other subpopulations. We suggest the creation of sustainable reserve for lakes near the city of Manaus to better manage and protect this species, whose populations suffer from both extractive and sport fishing.

  2. Humboldt Bay Initiative: Adaptive Management in a Changing World

    OpenAIRE

    Schlosser, Susan

    2009-01-01

    The Humboldt Bay Initiative seeks to bring people together to help envision the desired future state of the Humboldt Bay ecosystems, to help understand past, current and future conditions, and to move forward in the spirit of collaboration towards a sustainable and dynamic future. In order to address priority stresses to the ecosystems due to human activities, climate change, excessive sediment, and invasive species, the Humboldt Bay Initiative proposes a set of strategies that help create th...

  3. Ludwig Leichhardt und Alexander von Humboldt

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    Aliya-Katarina Südfels

    2012-10-01

    Full Text Available Zusammenfassung Im Juli des Jahres 1841 kommt es zu einem Treffen zwischen zwei Männern, das zunächst belanglos erscheint, sich aber Jahre später als wichtige historische Begebenheit herausstellen wird. In seinem Pariser Büro empfängt der 71jährige Naturforscher Alexander von Humboldt den jungen Preußen Ludwig Leichhardt. Der angehende Naturwissenschaftler erhofft sich Zuspruch und Empfehlung des berühmten Alexander von Humboldts. Die Unterredung ist kurz und verläuft für Leichhardt ergebnislos. Es wird das einzige Treffen der beiden Naturwissenschaftler bleiben. Aus heutiger Sicht unverständlich, da Ludwig Leichhardt und Alexander von Humboldt mehr verband, als ihre Leidenschaft für die Naturwissenschaften. Viel zu wenig ist sich bis jetzt den biographischen Analogien und den vergleichbaren geographischen Leistungen der beiden Preußen gewidmet worden. Abstract During July 1841 a meeting between two men takes place, which seems to have been extraneous, but turns out to be a significant historical incident. 71 year old natural scientist Alexander von Humboldt welcomes young Ludwig Leichhardt from Prussia in his office in Paris. The prospective young scientist expects help and references from famous Alexander von Humboldt. The conversation is short and ends from Leichhardt’s point of view without results. Unfortunately this is going to be the only meeting between the two scientists even though the two Prussians have more in common than their passion for the natural sciences. Way too seldomly have biographical analogy and geographical productivity of the two men been compared. Résumé En juillet 1841 une rencontre entre deux hommes a lieu, qui au premier abord semble sans importance, mais qui des années plus tard est considéré comme un événement historique majeur. Dans son bureau parisien, le naturaliste Alexandre de Humboldt, alors âgé de 71 ans, reçoit le jeune Prussien Ludwig Leichhardt. Le jeune scientifique en devenir

  4. Alexander von Humboldt in Daniel Kehlmanns Welt

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    Ottmar Ette

    2012-12-01

    Full Text Available Zusammenfassung Wie stark sich im Verlauf des zurückliegenden Vierteljahrhunderts der Bekanntheitsgrad Alexander von Humboldts in der deutschsprachigen Öffentlichkeit verändert hat, zeigen nicht nur Fernsehumfragen zu den berühmtesten Deutschen, in denen Alexander von Humboldt mittlerweile figuriert, oder Fernsehserien, die über aktuelle Expeditionen berichten und auf Humboldts Namen zurückgreifen. Am deutlichsten vielleicht belegt dies der enorme Erfolg von Daniel Kehlmanns Roman Die Vermessung der Welt, der ohne die zuvor skizzierte Entwicklung nicht denkbar gewesen wäre. Es ist vor diesem Hintergrund nicht nur reizvoll, sondern aufschlußreich, sich mit dem großen Erfolg dieses kleinen Romans zu beschäftigen. Worum geht es in Die Vermessung der Welt? Und wie läßt sich das „Phänomen Kehlmann“ aus etwas größerer Distanz erklären? Abstract In the last 25 years, Alexander von Humboldt‘s popularity has radically changed in the german-speaking public opinion. Proof of this are not only television surveys about the most famous germans - in which Alexander von Humboldt now regularly figures - or television series about contemporary expeditions, which constantly refer to Humboldt‘s name; perhaps what most clearly verifies this change is the great success of Daniel Kehlmann‘s novel Die Vermessung der Welt. Without the recent developments outlined above, this novel‘s degree of impact would have been unimaginable. To study the great success of this text against this backdrop is not only attractive, but also revealing. What is Die Vermessung der Welt really about? And how can we explain the „Kehlmann phenomenon“ from a greater distance? Resumen La popularidad de Alejandro de Humboldt ha cambiado profundamente dentro del último cuarto de siglo en la opinión pública de habla alemana. Prueba de esto son no sólo las encuestas televisivas sobre los alemanes más famosos, dentro de las cuales figura en estos momentos Alejandro

  5. 33 CFR 80.1150 - Arcata-Humboldt Bay, CA.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Arcata-Humboldt Bay, CA. 80.1150 Section 80.1150 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY INTERNATIONAL NAVIGATION RULES COLREGS DEMARCATION LINES Pacific Coast § 80.1150 Arcata-Humboldt Bay, CA. A line drawn...

  6. Wilhelm von Humboldt and the "Orient": On Edward W. Said's Remarks on Humboldt's Orientalist Studies

    Science.gov (United States)

    Messling, Markus

    2008-01-01

    From an epistemological perspective, Wilhelm von Humboldt's studies on the Oriental and East Asian languages and writing systems (Egyptian hieroglyphs, Sanskrit, Chinese, Polynesian) raise the question of his position in the Orientalist discourse of his time. Said [Said, E.W., 1978. "Orientalism. Western Conceptions of the Orient, fourth…

  7. Wilhelm von Humboldt and the "Orient": On Edward W. Said's Remarks on Humboldt's Orientalist Studies

    Science.gov (United States)

    Messling, Markus

    2008-01-01

    From an epistemological perspective, Wilhelm von Humboldt's studies on the Oriental and East Asian languages and writing systems (Egyptian hieroglyphs, Sanskrit, Chinese, Polynesian) raise the question of his position in the Orientalist discourse of his time. Said [Said, E.W., 1978. "Orientalism. Western Conceptions of the Orient, fourth…

  8. Diet of two serrasalmin species, Pygocentrus piraya and Serrasalmus brandtii (Teleostei: Characidae, along a stretch of the rio de Contas, Bahia, Brazil

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    Márcia Emília de Jesus Trindade

    Full Text Available Serrasalmus brandtii and Pygocentrus piraya are two common piranha species in the Barragem da Pedra Reservoir, rio de Contas. In order to identify the diet composition of the two species, monthly collections were performed at three sites between May 2001 and April 2003, using two gill nets of different mesh sizes cast at the beginning of the day and visited after 6, 12 and 24 h. The qualitative composition of the diet was analyzed by determining the frequency of occurrence. Comparison of the two species showed a higher relative abundance of S. brandtii (151 compared to P. piraya (55. The food items most frequently found in the stomachs of the two species were fins, fish and shrimp. Serrasalmus brandtii showed a greater feeding plasticity than P. piraya.

  9. Alexander von Humboldt and British artists: the Oriental taste

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    Garrido, Elisa

    2013-12-01

    Full Text Available Humboldtian landscape is the best result of a close relationship between artists and scientists in the context of the Enlightenment. Many artists inspired Humboldt to develop his concept of landscape as the best way of representing Nature, but some British artists in particular were a strong reference for him. Thomas Daniell and William Hodges had travelled to Asia creating a particular imagery, which inspired the desire to travel and the feeling of the exotic taste in Humboldt. Around Humboldt, mainly two types of artists have been studied: on the one hand, painter travellers who received direct instructions from Humboldt after his experience in America, and on the other, artists who started their trips by themselves after reading his works. However, this paper is focused on the links between Humboldt and these British painters of the Orient, whom he met on a European tour with Georg Forster, before making his trip to America.El paisaje teorizado por Humboldt es el resultado de una estrecha relación entre artistas y científicos, en el contexto de la Ilustración. Muchos artistas inspiraron a Humboldt a desarrollar su concepto del paisaje como la mejor forma de representar la naturaleza pero particularmente, algunos artistas británicos supusieron una fuerte referencia para él. Principalmente, alrededor de Humboldt se han estudiado dos tipos de artistas: por una parte, los pintores viajeros que recibieron instrucciones directas de Humboldt tras su experiencia en América y por otra, los artistas que iniciaron sus viajes por iniciativa propia tras haber leído los sus trabajos. Sin embargo, este texto se centra en las relaciones entre Humboldt y los pintores británicos de Oriente, a quienes él conoció en su viaje europeo junto a Georg Forster, antes de realizar su viaje americano.

  10. Infective pentastomid larvae from Pygocentrus nattereri Kner (Pisces, Characidae) from the Miranda River, Pantanal, Mato Grosso do Sul State, Brazil, with notes on their taxonomy and epidemiology.

    Science.gov (United States)

    Giesen, Suely C; Takemoto, Ricardo M; Calitz, Frikkie; Lizama, Maria de los Angeles Perez; Junker, Kerstin

    2013-11-01

    During parasitological surveys of freshwater fish from the Miranda River, Brazil, 199 Pygocentrus nattereri Kner (Characidae) were caught. Two pentastomid families, Subtriquetridae Fain, 1961, represented by its single genus Subtriquetra Sambon, 1922, and Sebekidae Sambon, 1922, represented by three genera, were present. Free-living larvae of Subtriquetra subtriquetra (Diesing, 1835) were collected from the swim bladder. Encysted larvae of Alofia Giglioli, 1922 were found in the abdominal cavity, chambers of the heart, musculature, on the surface of the gonads and swim bladder. Some Alofia larvae were moving freely in the swim bladder. Larvae of Sebekia Sambon, 1922 were encysted in the musculature. Some larvae of Leiperia Sambon, 1922 were found encysted in the musculature and on the surface of the pyloric caeca, whereas others occurred free in the abdominal cavity. In some of the latter, the head was buried deep in the wall of the intestine, stomach or ovaries, whereas the rest of their body remained free. Infective pentastomid larvae were present throughout the year with an overall prevalence of 77%. Both prevalence and intensity were higher in members of the Sebekidae than in Su. subtriquetra, possibly due to the latter's mode of transmission and its high pathogenicity. No sex-related, statistically significant differences (p > 0.05) in prevalence or abundance were found. Fish weight and length had significant but weak positive correlations (r or = 0.69). A higher prevalence and monthly mean abundance of pentastomids were seen in the dry season and might be due to increased host densities as habitats dry up. Pygocentrus nattereri represents a new intermediate host record for the genera Alofia, Leiperia and Subtriquetra.

  11. Génesis del lenguaje en Humboldt

    Directory of Open Access Journals (Sweden)

    Erika Lindig Cisneros

    2015-06-01

    Full Text Available Este ensayo analiza críticamente algunos pasajes en la obra del lingüista alemán Wilhelm von Humboldt (1767-1835, que afectan al intento de definición del objeto de la reflexión sobre la palabra y plantean, a su vez, la problemática que implica la reflexión del lenguaje sobre sí mismo: ni el objeto ni las relaciones entre los conceptos metodológicos pueden ser definidos inequívocamente, y esto conduce a momentos aporéticos.

  12. Spurensuche einer Rezeptionsgeschichte Alexander von Humboldt und Johann Gottfried Herder

    Directory of Open Access Journals (Sweden)

    Bernhard Hunger

    2009-05-01

    Full Text Available Article in German, Abstracts in English, German and Spanish.Alexander von Humboldt's work displays traces of Johann Gottfried Herder which are as multifaceted as the references to the latter are scarce. In light of this aspect, the present essay focuses on Humboldt's Physiognomy of Plants (1806, in which he explicitly mentions Herder for the first time in a publication. Two years later, the text is incorporated within Aspects of Nature (1808 ff.. In the third edition of Aspects (1849, Herder's name is curiously omitted. This omission is incomprehensible both in form and content. The historical context characterising the years between 1805 and 1808 suggests that Humboldt's references to Herder must have been made very deliberately. Humboldt's correspondence with the historian Johannes von M¸ller and other sources shows that Humboldt carefully studied Herder's writings. As the publisher of Herder's complete works, Johannes von M¸ller, who was Humboldtís friend and neighbour at the time, even considered Humboldt to be a direct descendant of the Herder school.

  13. Bildnisse mit Berg: Goethe und Alexander von Humboldt

    Directory of Open Access Journals (Sweden)

    Renato Giuseppe Mazzolini

    2004-04-01

    Full Text Available Article in German, translated by Wolfgang Böker, Abstracts in English and GermanBoth Alexander von Humboldt and Johann Wolfgang von Goethe have been portrayed in their later years anachronistically before the background of a mountain that had been of high significance in their earlier biography and carreer. For Goethe this was the Vesuvio, and for Humboldt the Chimborazo. This paper examines the numerous conceptual and formal parallels between the two paintings which make it probable that the Goethe portrait served as a blueprint for the portrait of Humboldt.

  14. El Barón de Humboldt.

    Directory of Open Access Journals (Sweden)

    Academia Nacional de Medicina

    1979-10-01

    Full Text Available

    No llegaron los viajeros científicos enviados a la Nueva Granada por el emperador de Austria, aquéllos en cuya prevención había procedido Caballero y Góngora a fundar la Expedición del Nuevo Reino.
    Pero vino - y en plena oportunidad y con todas las condiciones previstas y buscada por el arzobispo virrey - otro explorador, el mayor de la América Equinoccial, quien había de consagrar para el mundo científico europeo y para la posteridad, dándole toda su trascendencia humana y nacional, la obra de Mutis y de su escuela: Federico Enrique Alejandro, Barón de Humboldt.

    Había nacido en Berlin el 14 de septiembre de 1769 y en los 90 años que había de durarle lá vida no tendrían las ciencias naturales otra personificación tan completa ni otro ejemplar tan audaz, tan resuelto, tan codicioso y afortunado, los exploradores; ni la naturaleza americana contaría con un admirador tan convencido, ni los americanos con un profeta de sus destinos tan inspirado, como este hombre descrito en su pasaporte para América como de edad veintiocho años, cabello ligeramente rojizo, ojos grises, nariz larga, boca más bien grande, barbilla bien conformada, frente espaciosa, picado de viruela .... que viajaba con el
    fin de adquirir conocimientos.

    El encuentro en la retirada Santa Fe, de Mutis y Humboldt, juntó dos órbitas tan dispares como eran la ciencia ibérica y la alemana en el siglo XIX, pero que coincidían en su pasión por los estudios positivos, en su altivez nacionalista, en su tesón titánico y en la trascendencia que pretendían dar a sus lucubraciones.
    Humboldt es para las ciencias alemanas, el alfa que para nosotros representa José Celestino Mutis...

  15. Assessing marsh response from sea‐level rise applying local site conditions: Humboldt Bay National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Humboldt Bay National Wildlife Refuge (NWR) is located on Humboldt Bay in northern California. Humboldt Bay NWR was established in 1971 and consists of a mosaic...

  16. The Trail Inventory of Humboldt Bay NWR [Cycle 2

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of this report is to create a baseline inventory of all non-motorized trails on Humboldt Bay National Wildlife Refuge. Trails in this inventory are...

  17. Eureka Littoral Cell CRSMP Humboldt Bay Shoreline Types 2011

    Data.gov (United States)

    California Department of Resources — In 2011 Aldaron Laird walked and kayaked the entire shoreline of Humboldt Bay mapping the shoreline conditions onto 11x17 laminated fieldmaps at a scale of 1' = 200'...

  18. Hypertextuality in the Alexander von Humboldt Digital Library

    Directory of Open Access Journals (Sweden)

    Detlev Doherr

    2016-04-01

    Full Text Available To do justice to the legacy of Alexander von Humboldt, a 19th century German scientist and explorer an information and knowledge management system is required to preserve the author's original intent and promote an awareness of all his relevant works. Although all of Humboldt's works can be found on the internet as digitized papers, the complexity and internal interconnectivity of the writings is not very transparent. Humboldt's concepts of interaction cannot be adequately represented only by digitized papers or scanned documents. The Humboldt Portal is an attempt to create a new generation of digital libraries, providing a new form of interaction and synthesis between humanistic texts and scientific observation. The digital version of his documents supplies dynamic links to sources, maps, images, graphs and relevant texts in accordance with his visions, because "everything is interconnectedness".

  19. Eureka Littoral Cell CRSMP Humboldt Bay Shoreline Types 2011

    Data.gov (United States)

    California Department of Resources — In 2011 Aldaron Laird walked and kayaked the entire shoreline of Humboldt Bay mapping the shoreline conditions onto 11x17 laminated fieldmaps at a scale of 1' = 200'...

  20. Spurensuche einer Rezeptionsgeschichte Alexander von Humboldt und Johann Gottfried Herder

    National Research Council Canada - National Science Library

    Bernhard Hunger

    2009-01-01

    Article in German, Abstracts in English, German and Spanish.Alexander von Humboldt's work displays traces of Johann Gottfried Herder which are as multifaceted as the references to the latter are scarce...

  1. Alexandre de Humboldt et le Marquis de Laplace

    Directory of Open Access Journals (Sweden)

    Eberhard Knobloch

    2014-12-01

    Full Text Available Pierre-Simon Marquis de Laplace joua un rôle éminent dans la vie scientifique d’Alexandre de Humboldt. Humboldt avait fait la connaissance du savant français qui avait vingt ans de plus que lui-même à Paris en 1798. L’article de Eberhard Knobloch examine la relation entre ces deux géants de la science en s’appuyant entre autre pour la première fois sur des documents inédits: les quatre lettres de Laplace à Humboldt, le journal d’Humboldt et sur le matériel d’archives conservé aux Archives de l’Académie des Sciences de Berlin-Brandebourg.

  2. Ein Humboldt-Brief in der Autographensammlung Lion Feuchtwangers

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    Ingo Schwarz

    2006-10-01

    Full Text Available Article in German, Abstracts in English and German.The paper deals with a letter from Alexander von Humboldt, which has been part of Lion Feuchtwanger's Autograph Collection since 1958. An investigation of the contents of the letter brought to light new details, chiefly of Humboldt's activities in promoting young talents. Emil Naumann (1827-1888, composer, teacher and author, was clearly identified as the letter's recipient.

  3. Humboldt SK pilot biodigester receives funding

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2005-09-30

    The Canada-Saskatchewan Western Economic Partnership Agreement (WEPA) will provide funding for Canada's first pilot-scale biodigester to be built in Humboldt, Saskatchewan. The $208,138 pilot facility will use household garbage as well as agricultural waste such as manure and livestock operations, abattoirs and food processing to create heat or power and fertilizer. Support for this bio-energy facility, which could also reduce greenhouse gases, will come from the Prairie Agricultural Machinery Institute which has received $186,138 from Canada and Saskatchewan in the form of cost-shared federal-provincial funding. The pilot plant will test different combinations of waste material feedstocks and the characteristics of the resulting gas end products. The pilot facility will also provide design information for full-scale biodigester manufacturers in Canada. It is expected that 25 full-scale biodigesters will be constructed in Canada in the near future.

  4. Host-parasite interactions between the piranha Pygocentrus nattereri (Characiformes: Characidae and isopods and branchiurans (Crustacea in the rio Araguaia basin, Brazil

    Directory of Open Access Journals (Sweden)

    Lucélia Nobre Carvalho

    Full Text Available In the tropics, studies on the ecology of host-parasite interactions are incipient and generally related to taxonomic aspects. The main objective of the present work was to analyze ecological aspects and identify the metazoan fauna of ectoparasites that infest the piranha, Pygocentrus nattereri. In May 2002, field samples were collected in the rio Araguaia basin, State of Goiás (Brazil. A total of 252 individuals of P. nattereri were caught with fishhooks and 32.14% were infested with ectoparasite crustaceans. The recorded ectoparasites were branchiurans, Argulus sp. and Dolops carvalhoi and the isopods Braga patagonica, Anphira branchialis and Asotana sp. The prevalence and mean intensity of branchiurans (16.6% and 1.5, respectively and isopods (15.5% and 1.0, respectively were similar. Isopods were observed in the gills of the host; branchiurans were more frequent where the skin was thinner, and facilitated attachment and feeding. The ventral area, the base of the pectoral fin and the gular area were the most infested areas. The correlations between the standard length of the host and the variables intensity and prevalence of crustaceans parasitism, were significant only for branchiurans (rs = 0.2397, p = 0.0001; chi2 = 7.97; C = 0.19. These results suggest that both feeding sites and body size probably play an important role in the distribution and abundance of ectoparasites.

  5. Psychological Analysis of "Humboldt's Gift" from the Perspective of Lacan's Theory

    Science.gov (United States)

    Xiang, Fang

    2017-01-01

    Two protagonists Humboldt and Citrine in "Humboldt's gift" are characterized as restless even lunatic, for they are constantly or madly seeking something such as honor, power or intimate relationship something or other. This thesis intends to analyze Humboldt and Citrine's psychological troubles from the perspective of Lacan's theory and…

  6. Alexander von Humboldt und die transnationale Wissenschaftskommunikation im 19. Jahrhundert

    Directory of Open Access Journals (Sweden)

    Ulrich Päßler

    2008-10-01

    Full Text Available Article in german, abstracts in english and frenchAlexander von Humboldt has been labelled a “scientific cosmopolitan”. Through his vast correspondence and a network of personal contacts, he upheld a form of scientific exchange that was characteristic of the eighteenth-century “republic of letters”.This article examines how Humboldt adapted this cosmopolitan tradition of communication to a nineteenth century scientific culture that was largely institutionalized and was becoming increasingly nationalized. Humboldt quite successfully fostered scientific exchange between Berlin and Paris after 1830 and, on various occasions between the 1830s and 1850s, readily advocated international large-scale projects. These examples demonstrate that Humboldt observed the development of nationally defined scientific cultures and the opening of the sciences towards the public realm. Moreover, they indicate how he was able to make use of these developments as he promoted the sciences in Prussia. In scientific controversies within the Parisian scientific community, Humboldt was involuntarily assigned the role of a “neutral” foreign arbitrator. Thus, the development of nineteenth century sciences also jeopardized Humboldt’s unique position as an independent “homme des lettres”.

  7. Roger Bacon in der Sicht Alexander von Humboldts

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    Tom Müller

    2008-10-01

    Full Text Available Articel in german, abstracts in englisch, german and español In his model of the six epochs of the history of science, Alexander von Humboldt sees scarcely any lights able to break through the occidental darkness in the time between the scientific prime of the arabic world and the expeditions of Columbus. The most prominent of these few pioneers to Humboldt is the fransciscan monc Roger Bacon who excelled in almost all disciplines and emphasized on the unity of the sciences. Humboldt honors the Englishman with detailed examinations of his Opus maius in Kosmos and also in his popular speeches in the Berlin Singakademie as well as in the examen critique on the history of geography of the New World.

  8. Host-parasite interactions between the piranha Pygocentrus nattereri (Characiformes: Characidae and isopods and branchiurans (Crustacea in the rio Araguaia basin, Brazil

    Directory of Open Access Journals (Sweden)

    Lucélia Nobre Carvalho

    2004-06-01

    Full Text Available In the tropics, studies on the ecology of host-parasite interactions are incipient and generally related to taxonomic aspects. The main objective of the present work was to analyze ecological aspects and identify the metazoan fauna of ectoparasites that infest the piranha, Pygocentrus nattereri. In May 2002, field samples were collected in the rio Araguaia basin, State of Goiás (Brazil. A total of 252 individuals of P. nattereri were caught with fishhooks and 32.14% were infested with ectoparasite crustaceans. The recorded ectoparasites were branchiurans, Argulus sp. and Dolops carvalhoi and the isopods Braga patagonica, Anphira branchialis and Asotana sp. The prevalence and mean intensity of branchiurans (16.6% and 1.5, respectively and isopods (15.5% and 1.0, respectively were similar. Isopods were observed in the gills of the host; branchiurans were more frequent where the skin was thinner, and facilitated attachment and feeding. The ventral area, the base of the pectoral fin and the gular area were the most infested areas. The correlations between the standard length of the host and the variables intensity and prevalence of crustaceans parasitism, were significant only for branchiurans (rs = 0.2397, p = 0.0001; chi2 = 7.97; C = 0.19. These results suggest that both feeding sites and body size probably play an important role in the distribution and abundance of ectoparasites.Nos trópicos, os estudos sobre a ecologia de interações parasito-hospedeiro são incipientes, sendo a maioria de cunho taxonômico. O principal objetivo do presente estudo foi identificar a fauna metazoária de ectoparasitas e analisar aspectos ecológicos da piranha Pygocentrus nattereri. As coletas foram realizadas em maio de 2002, na bacia do rio Araguaia, GO. Com o auxílio de linha e anzol foram capturados 252 exemplares de P. nattereri, dos quais 32,14% estavam infestados por crustáceos ectoparasitos. As espécies de ectoparasitas registradas foram Argulus sp

  9. The Journal of A. v. Humboldt in Spain

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    Leitner, Ulrike

    2011-12-01

    Full Text Available The Spanish diary can surprisingly not be found in his bounded diaries from his American travels, but in a separate folder of his legacy in Berlin, where Humboldt collected material which he wanted to use for his publication about Spain. So it remained undiscovered until recently. Humboldt’s notes contain geognostic descriptions as well as his observations about climate, vegetation, electricity of the atmosphere, etc. The comparison with Humboldt’s publication of 1825 facilitates to gain insight into his scientific methods.

    El diario español de Humboldt se encuentra sorprendentemente en una carpeta de su legado en Berlín, donde el mismo recopiló los materiales para su publicación sobre la meseta española en la revista Hertha, y no en sus diarios encuadernados del viaje americano. Esto explica que no se hubieran descubierto hasta hace poco tiempo. El manuscrito contiene descripciones geognósticas, observaciones sobre el clima, la vegetación, la electricidad de la atmósfera, etc. La comparación con lo publicado de Humboldt en 1825 sobre la meseta española que realizamos en las notas de esta edición facilitará al lector una aproximación a los métodos cientificos típicos de Humboldt.

  10. Molecular Modeling and Computational Chemistry at Humboldt State University.

    Science.gov (United States)

    Paselk, Richard A.; Zoellner, Robert W.

    2002-01-01

    Describes a molecular modeling and computational chemistry (MM&CC) facility for undergraduate instruction and research at Humboldt State University. This facility complex allows the introduction of MM&CC throughout the chemistry curriculum with tailored experiments in general, organic, and inorganic courses as well as a new molecular modeling…

  11. Bemerkungen zu Alexander von Humboldts Russland-Tagebuch

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    Petra Werner

    2008-04-01

    Full Text Available Article in German, Abstracts in English and GermanIn this study the fragment of Alexander von Humboldt’s Siberian personal diary of 1829 is introduced. The evaluation is focussed on Humboldt’s remarks about mineral resources, especially gold and diamonds. Also mentioned are results which Humboldt recorded about geographical, botanical, meteorological, zoological and ethnological questions.

  12. Alexander von Humboldt als astronomischer Arbeiter, Diskussionspartner und Ideengeber

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    Oliver Schwarz

    2014-12-01

    Full Text Available Auf welche Weise sich unsere Einschätzung des wissenschaftlichen Wirkens Alexander von Humboldts auf Grundlage der beständig voranschreitenden Erschließung seiner Handschriften verändern konnte und welche aktuellen wissenschaftshistorischen Fragestellungen dadurch aufgeworfen wurden, verdeutlicht Oliver Schwarz an Beispielen aus der Astronomie.

  13. Virgin Valley opal district, Humboldt County, Nevada

    Science.gov (United States)

    Staatz, Mortimer Hay; Bauer, Herman L.

    1951-01-01

    The Virgin Valley opal district, Humboldt County, Nevada, is near the Oregon-Nevada border in the Sheldon Game Refuge. Nineteen claims owned by Jack and Toni Crane were examined, sampled, and tested radiometrically for uranium. Numerous discontinuous layers of opal are interbedded with a gently-dipping series of vitric tuff and ash which is at least 300 ft thick. The tuff and ash are capped by a dark, vesicular basalt in the eastern part of the area and by a thin layer of terrace qravels in the area along the west side of Virgin Valley. Silicification of the ash and tuff has produced a rock that ranges from partly opalized rock that resembles silicified shale to completely altered rock that is entirely translucent, and consists of massive, brown and pale-green opal. Carnotite, the only identified uranium mineral, occurs as fracture coatings or fine layers in the opal; in places, no uranium minerals are visible in the radioactive opal. The opal layers are irregular in extent and thickness. The exposed length of the layers ranges from 8 to 1, 200 ft or more, and the thickness of the layers ranges from 0. 1 to 3. 9 ft. The uranium content of each opal layer, and of different parts of the same layer, differs widely. On the east side of Virgin Valley four of the seven observed opal layers, nos. 3, 4, 5, and 7, are more radioactive than the average; and the uranium content ranges from 0. 002 to 0. 12 percent. Two samples, taken 5 ft apart across opal layer no. 7, contained 0. 003 and 0. -049 percent uranium. On the west side of the valley only four of the fifteen observed opal layers, nos; 9, , 10, 14, and 15, are more radioactive than the average; and the uranium content ranges from 0. 004 to 0. 047 percent. Material of the highest grade was found in a small discontinuous layer of pale-green opal (no. 4) on the east side of Virgin Valley. The grade of this layer ranged from 0. 027 to 0. 12 percent uranium.

  14. Sclerochronological studies in the humboldt current system, a highly variable ecosystem

    OpenAIRE

    Gosselin, M; Lazareth, Claire E.; Ortlieb, Luc

    2013-01-01

    The Humboldt Current that bathes the west coast of South America is affected by different influences at daily to decadal periodicities. Environmental influences such as upwelling or coastal trapped waves as well as climate influences such as El Nino southern oscillation and Pacific decadal oscillation events interact and modify the thermonutricline depth of this Humboldt Current System. The position of this thermonutricline plays a key role in Humboldt Current System functioning by driving se...

  15. Das Ganze der Natur Alexander von Humboldt und das romantische Forschungsprogramm

    Directory of Open Access Journals (Sweden)

    Kristian Köchy

    2002-10-01

    Full Text Available Article in German, Abstracts in English, German and Spanish. The wholeness of natureAlexander von Humboldt and the romantic research programIt does not seem to be clear whether there is a tight junction between the humboldian science and the romantic research program. But by recognizing the principal aim of Humboldts concept – the representation of nature as a whole – one can see how Humboldts view has been developed in contact with romantic ideas. This investigation analyses Humboldts research program in consideration of its main features and the special relations between science, philosophy of nature, feeling of nature, history and art.

  16. Alexander von Humboldt and the Beginning of the Environmental Movement

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    Engelhard Weigl

    2001-04-01

    Full Text Available Article in English, Abstracts in English and German.In the middle of the 19th century the question whether expanding civilization and industrialization had an effect on climate was discussed intensely worldwide. It was feared that increasing deforestation would lead to continuous decrease in rainfall. This first scientific discussion about climate change as the result of human intervention was strongly influenced by the research Alexander von Humboldt and Jean-Baptiste Boussingault had undertaken when they investigated the falling water levels of Lake Valencia in Venezuela. This essay aims to clarify the question whether Alexander von Humboldt can be counted among the leading figures of modern environmentalism on account of this research as is being claimed by Richard H. Grove in his influential book Green Imperialism. Colonial Expansion, Tropical Island Edens and Origins of Environmentalism, 1600-1860 (1995.

  17. Humboldt Bay Wetlands Review and Baylands Analysis. Volume III. Habitat Classification and Mapping and Appendices.

    Science.gov (United States)

    1980-08-01

    Quar- terly, Annual and Final reports. Icanberry, J. W., 1971. Seasonal and Spatial Distribution of Mero- plankton in North Humboldt Bay. Humboldt...current. California Department Fish and Game, Fish Bulletin 162:1-79. Mann, K. H., 1973. Seaweeds : their productivity and strategy for growth. Science. 182

  18. Zum Verhältnis Charles Darwins zu Alexander v. Humboldt und Christian Gottfried Ehrenberg

    Directory of Open Access Journals (Sweden)

    Petra Werner

    2009-05-01

    Full Text Available Article in German, Abstracts in English and German.While it is well known that Charles Darwin and Alexander von Humboldt appreciated each other's work, Humboldt's influence on Darwin has not yet been thoroughly examined. The following paper shows to what extent Darwin was inspired by Humboldt's publications while writing his Origin of Species.Darwin paid special attention to Humboldt's observations on plant migration and throughout his whole scientific career he used Humboldt's books as a major source of information. In fact, Darwin's last annotations in his copy of the Personal Narrative of travels to the Equinoctial Regions of the New continent during the Years 1799-1804 date back to the last weeks of his life.On the other hand, Darwin rejected many of Humboldt's scientific conclusions. The two authors differed in their assessment of Heinrich Bronn's biological research. Finally, Darwin was dissatisfied with Humboldtís last work Cosmos because it did not contain the information he expected. Darwinís collaboration with Humboldt's travel companion Christian Gottfried Ehrenberg proved to be similarly disappointing. Darwin sent 183 samples of infusoria to Berlin, but the results of Ehrenberg's analysis did not support Darwin's theory on evolution.

  19. Der Briefwechsel zwischen Alexander von Humboldt und Karl Ernst von Baer

    Directory of Open Access Journals (Sweden)

    Thomas Schmuck

    2012-10-01

    Full Text Available Zusammenfassung Der kurze, nicht vollständig erhaltene Briefwechsel zwischen Alexander von Humboldt und Karl Ernst von Baer behandelt sehr verschiedene Themen: Politik, Kriegsgefahr, den Wissenschaftsbetrieb, Auszeichnungen und Tagungen, Embryologie und Cholera. Gemeinsam mit Briefen und Reden ergibt sich dabei ein differenziertes Bild der Beurteilung der beiden Wissenschaftler durch den jeweils anderen. Während Baer sich als Bewunderer Humboldts erweist, erscheint umgekehrt Humboldts Einschätzung Baers als ambivalent. Abstract The short, not completely preserved correspondence between Alexander von Humboldt and Karl Ernst von Baer deals with a wide range of subjects: politics and the danger of war, academic activities, scientific awards and conferences, aspects of embryology and the cholera. Letters to third persons and speeches, together with the correspondence between Humboldt and Baer show a differentiated pattern of mutual appraisal: While Baer always remained an admirer of the elder naturalist, Humboldt’s estimation was characterized by ambivalence.

  20. Naturgenuss und Weltgemälde. Gedanken zu Humboldts Kosmos

    Directory of Open Access Journals (Sweden)

    Eberhard Knobloch

    2004-10-01

    Full Text Available Article in German, Abstracts in English and German. Humboldt’s „Kosmos“ or „physical world description“ aimed at the same time at the outer and at the inner world. Corresponding to Horace’s famous dictum it was meant to be useful and to delight. Such a description was characterized by two notions, that is by force and by liberty. The paper deals with Humboldt’s conception of his work, with his notion of nature, taken from the elder Pliny. Again and again Humboldt named his famous model namely Laplace whose methodological principles coincided with his own convictions. The paper demonstrates that and how Humboldt was influenced by Herder without mentioning Goethe’s friend and explains Kant’s role in this context. The final aims of Humboldt’s conception of natural science were the laws of nature which connected natural phenomena with each other. Finally Humboldt’s high respect for mathematics is analysed.

  1. Metabolite Profiles of Male and Female Humboldt Penguins

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    Jeffrey M. Levengood

    2015-10-01

    Full Text Available We examined 185 metabolites in 30 adult Humboldt Penguins (Spheniscus humboldti nesting at the Punta San Juan Marine Protected Area, Peru, in order to examine gender differences in metabolome profiles, particularly those involved in metabolism and energetics. The majority of the compounds identified were fatty (26% of total identified compounds, organic (19%, and amino (16% acids. We were able to differentiate male and female penguins with 96.6% accuracy on the basis of 12 metabolites, most of which are involved in lipid and carbohydrate metabolism. These included 2-oxoglutarate, erythronic acid, GABA, mannitol, sedoheptulose 7-phosphate, and serine and six metabolites present in higher concentrations in females compared to males (2-aminoadipic acid, O-phosphorylethanolamine, glycerol 2-phosphate, glycerol 3-phosphate, pantothenic acid, and creatinine. Of these, 2-oxoglutarate and glycerol 3-phosphate were key metabolites distinguishing gender. Our results indicated that male and female Humboldt Penguins were characterized by differing metabolic states. Such differences could be important to individual and brood survival in times of environmental stress.

  2. Una Lectura de Humboldt. Max Weber y la universidad alemana

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    Piedras Monroy, Pedro Andrés

    2008-06-01

    Full Text Available Max Weber’s specialists and biographers have not considered it very interesting to reflect about this author’s critique of the German university. In my opinion, many of the holes and difficulties in meaning we still find in his works and life come from this broad and decisive lack of knowledge. In my essay, I try to start filling this gap, studying the way Weber answers to and updates the educational challenges of the founder of the modern German University: Wilhelm von Humboldt.Especialistas y biógrafos de Max Weber no han considerado demasiado interesante reflexionar sobre la crítica que este autor hace de la universidad alemana. En mi opinión, muchos de los huecos y de las dificultades que seguimos encontrando a la hora de comprender a este autor proceden de este vacío enorme y decisivo. En mi ensayo, trato de comenzar a llenar este hueco a través del estudio del modo en el que Weber responde a los desafíos educativos del fundador de la moderna universidad alemana, Wilhelm von Humboldt, y los actualiza.

  3. Humboldt, Cotta, Ritter. Eine Miszelle über die Arbeit an einer Edition

    Directory of Open Access Journals (Sweden)

    Ulrike Leitner

    2008-04-01

    Full Text Available Article in German, Abstracts in English, German and SpanishThrough the work on editing projects sometimes historical and biographical details are discovered. In this paper a letter from A. v. Humboldt to his publisher J. G. v. Cotta serves as an example of how the correct date of a wrongly dated letter could be found. The necessary research to answer this question also brought to light some new facts as to a meeting between Humboldt and geographer C. Ritter in Paris in 1824. We also learn about some topics on which Humboldt was working at the time and about his relationship to the French Court.

  4. Humboldt, un prusiano en la Corte del Rey Carlos IV

    Directory of Open Access Journals (Sweden)

    Puig-Samper, Miguel Ángel

    1999-08-01

    Full Text Available The study of Alejandro de Humboldt's transit through Spain and particularly Madrid, has been one of the forgotten aspects of his historiography. The reasons that would explain the approval by king Charles IV of his trip, involving the minister Mariano de Urquijo and the embassador of Sajonia, baron of Forell, are not sufficiently documented due to the scarce data that Humboldt himself offered in his work and to the absence of any other supporting documents. This work studies the preparation of his American trip and its approval by the Spanish court. It incorporates the Memorandum presented —which was «lost» until now—, the autobiography submitted to the authorities and the references given by Philippe de Forrell. Furthermore, it analyses his relationships with the Spanish scientific community in Madrid and the profile of the team that supported him to achieve his targets.

    El estudio del paso de Alejandro de Humboldt por España y especialmente por Madrid ha sido tradicionalmente uno de los aspectos más olvidados en la historiografía humboldtiana. La repetición de los pocos datos que él mismo ofreció en su obra y la falta de documentos ha hecho insuficiente la explicación de cómo fue aprobado su viaje por el rey Carlos IV, con la intervención del ministro Mariano Luis de Urquijo y del embajador de Sajonia, barón de Forell. En el presente trabajo se estudia la preparación de su viaje americano y su aprobación en la Corte española, aportando la Memoria presentada —abasta ahora «perdida»—, la autobiografía que elevó a las autoridades y el aval de Philippe de Forell. Asimismo se analizan sus relaciones con los científicos españoles en Madrid y el perfil del grupo que le ayudó a conseguir sus objetivos.

  5. Evapotranspiration by woody phreatophytes in the Humboldt River Valley near Winnemucca, Nevada

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report presents the results of cooperative studies ofevapotranspiration by phreatophytes in the Winnemucca reachof the Humboldt River valley. Water that is...

  6. Humboldt, Historismus, Humboldteanisierung. Der "Geschichtsschreiber von Amerika", die Massensklaverei und die Globalisierungen der Welt

    Directory of Open Access Journals (Sweden)

    Miachel Zeuske

    2001-10-01

    Full Text Available Article in German, Abstracts in English and Spanish.Humboldt, (German historicism, humboldteanization.The ‘historian of America", mass slavery and the globalisations of the world.This article treats Alexander von Humboldt as an Atlantic intellectual, not only as an european intellectual. The article tries to analize also the "Ensayo político sobre la Isla de Cuba" as a key text of the second globalization ("industrial revolution". Against the background of our knowledge about the reality at the beginnings of the 19th century the article analizes the humboldtian presentation of this reality during his stay in Cuba (1801/1804, confronting it with his "Essay" about Cuba (1826-1831, as well tries to demonstrate the position of Humboldt in the historical thinking. The third part explains the relations of Humboldt to the network of Cuban intellectuals and with some important personalities of the Cuban elite (Arango, Calvo in the development of his work.

  7. Dos cartas inéditas de Lagasca a Humboldt en torno al legado de Mutis

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    Maldonado, J. Luis

    2004-12-01

    Full Text Available Before departing for America, Alejandro de Humboldt documented American natural history and the Spanish scientific expeditions. This article reveals two important letters of Mariano Lagasca who, from exile in London, wrote to Humboldt about the scientific legacy of José Celestino Mutis, and his arrival in Spain following the military intervention of general Morillo in Nueva Granada.

    Antes de la partida hacia América, Alejandro de Humboldt se documentó sobre la historia natural americana y las expediciones científicas españolas. En el presente artículo, damos a conocer dos importantes cartas de Mariano Lagasca, que desde su exilio londinense, escribió a Humboldt en torno al legado científico de José Celestino Mutis y su llegada a España tras la intervención militar del general Morillo en Nueva Granada.

  8. Eureka Littoral Cell CRSMP Humboldt Bay Mean Monthly Maximum Water Elevation 2011

    Data.gov (United States)

    California Department of Resources — The Humboldt Bay Shoreline Assessment and LiDAR Analysis was conducted by field mapping the entire shoreline and assigning an unique segment identifier based on a...

  9. Impacts to Humboldt Bay NWR from forestry and dairy activities in the Salmon Creek Watershed

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The freshwater creeks, brackish water sloughs, saltwater marshes and mud flats found on the Humboldt Bay National Refuge provide habitats for at least 110 species of...

  10. NOAA Coastal Services Center orthoimagery for Humboldt, CA, 2009 (NODC Accession 0089055)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set consists of 0.5-meter pixel resolution, four band orthoimages covering the Humboldt Bay area. An orthoimage is remotely sensed image data in which...

  11. Humboldt, el Perú y sus recursos naturales

    OpenAIRE

    O'Phelan Godoy, Scarlett

    2010-01-01

    La ponencia se centrará en analizar la relación de Humboldt con el Perú a partir de los recursos naturales que ofrecía el virreinato peruano y que llamaron la atención del científico alemán. Dentro de ellos cabe destacar los yacimientos mineros que, debido a su formación minerológica, le resultaron de gran ínterés; sobre todo las minas de Hualgayoc, Cajamarca, y el mineral de Cerro de Pasco. Otro recurso que destacó en sus escritos fue el del guano de las islas y su uso como fertilizante y, a...

  12. The sing for Humboldt, for Saussure and for Bakhtin

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    Sebastião Elias Milani

    2015-06-01

    Full Text Available This article shows three of the principal sign conceptions of the studies about language, differences and similarities. The sign is for Humboldt the material representation, or sound-image, of the concept, besides the identity of the articulated language sound; these three parts, sign, concept and sound identity, make the form of the language that is the word. The sign is for Saussure the name of the relation between the signified and the signifier. Saussure proposed the substitution of the terms sound-image and concept, that were full of suggestions and prior conceptualization, to the terms signified and signifier. The sign in Bakhtin is the form of the structure that accomplishes an ideologically sense completed by thought through articulated sound. The meeting between the articulated sound and the concept gives the resulting element of semiosis, so every sign is semiotic.

  13. A regional climatology of the Humboldt Current System

    Science.gov (United States)

    Grados Quispe, M.; Chaigneau, A.; Blanco, J.; Vasquez, L.; Dominguez, N.

    2009-12-01

    A 3-dimensional, high-resolution, regional climatology of the Humboldt Current System (HCS) north of 25°S is presented. The methodology is based on a four-dimensional ocean interpolation scheme using locally weighted least square fitting, as developed by Dunn and Ridgway [2001] and Ridgway et al. [2002] in the Australian Seas. The method is applied to all the available historical profiles from the National Oceanographic Data Center [WOD05, Boyer et al., 2006], ARGO buoy profiles [http://www.argo.ucsd.edu] for 2000-2007 and historical in situ long-term information from the Peruvian Marine Research Institute (IMARPE) and Fisheries Development Institute (IFOP) for the period 1960-2008. The regional climatology, which extends from the equator to 25°S and from the coast to 8° offshore with a resolution of 0.1°x0.1°, is thus constructed from more than 70 000 temperature profiles, 38 000 salinity profiles and 43 000 oxygen profiles to form a seasonal climatology of temperature and salinity along Peru and northern Chile. The resulting maps depict interesting small-scales coastal properties such as clear distinct upwelling centers and frontal zones. Geostrophic currents relative to 500 m depth are also computed from the density field, highlighting new circulation features. This study provides a contemporaneous view of the circulation and the water masses characteristics in the Humboldt Current System at seasonal scales. This regional climatology represents coastal boundary features (upwelling cells, frontal regions) better than other climatologies. In view of on-going international research efforts to understand the coastal upwelling and coastal currents in the southern ocean off Peru, the main characteristics of the upwelling cell, currents and coastal winds variability of the Pisco (13°S)-San Juan (15°S) region are presented. This improved gridded product is expected to be used for initializing and validating high resolution regional numerical models.

  14. Identität und Differenz Goethes Faust und Alexander von Humboldt

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    Heinz Krumpel

    2007-04-01

    Full Text Available Article in German, Abstracts in English, Spanish and GermanIn the article “Identity and difference between Goethe`s Faust and Alexander von Humboldt” the issue of how much Faust is contained in Humboldt and in which way Goethe`s Faust has to be related to Alexander von Humboldt is discussed. Here the connection of activity, knowledge and vision as well as the relationship between humans and nature are central to the examination. Goethe and Humboldt were greatly influenced by the enlightenment. Their ideas and visions show us today that modernity is an incomplete project. In Goethe`s Faust the question of the essence of mankind is posed because there is a hint of Faust and Mephisto in each human. With Humboldt those principles acted among other things as a driving force for greater productitivity and the extraction of knowledge. Even though Faust did not fail in his bet with Mephisto, on the other hand he also did not win. Humboldt, however, would have won the bet. Considering the global ecological crisis and regional conflicts today the idea of the relation of Goethe´s Faust and Humboldt has an astonishing relevance.

  15. Alexander von Humboldt's Idea of Interconnectedness and its Relationship to Interdisciplinarity and Communication

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    Detlev Doherr

    2015-10-01

    Full Text Available Alexander von Humboldt, a German scientist and explorer of the 19th century, viewed the natural world holistically and described the harmony of nature among the diversity of the physical world as a conjoining between all physical disciplines. He noted in his diary: "Everything is interconnectedness." The main feature of Humboldt's pioneering work was later named "Humboldtian science", meaning the accurate study of interconnected real phenomena in order to find a definite law and a dynamic cause. Following Humboldt's idea of nature, an Internet edition of his works must preserve the author's original intention, retain an awareness of all relevant works, and still adhere to the requirements of scholarly edition. At the present time, however, the highly unconventional form of his publications has undermined the awareness and a comprehensive study of Humboldt's works. Digital libraries should supply dynamic links to sources, maps, images, graphs and relevant texts. New forms of interaction and synthesis between humanistic texts and scientific observation need to be created. Information technology is the only way to do justice to the broad range of visions, descriptions and the idea of nature of Humboldt's legacy. It finally leads to virtual research environments as an adequate concept to redesign our digital archives, not only for Humboldt's documents, but for all interconnected data.

  16. History and Pre-History of the Alexander von Humboldt Foundation

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    D. Platikanov

    2014-02-01

    Full Text Available In this paper a short review of the history of Alexander von Humboldt Foundation, Bonn - Bad Godesberg, Germany, on the occasion of its 60th anniversary is presented. This outstanding German foundation is actually the third one with the same name. Earlier two other Alexander von Humboldt Foundations consequently existed and they consist its pre-history, which is also shortly reviewed. The establishment of the present Foundation in 1953, its development and growth, its activities, information about the six presidents and five executive directors, as well as the main features, principles and guidelines are considered. During the last 60 years the Alexander von Humboldt Foundation became an important institution for the promotion of international research cooperation, which significantly influences the world science. It supported more than 27700 Humboldt fellows to carry out scientific research in Germany, and they form a large Humboldt family: a world-wide network. Large number Bulgarian Humboldt fellows are among the best scientists in Bulgaria.

  17. Assessment of metallic mineral resources in the Humboldt River Basin, Northern Nevada, with a section on Platinum-Group-Element (PGE) Potential of the Humboldt Mafic Complex

    Science.gov (United States)

    Wallace, Alan R.; Ludington, Steve; Mihalasky, Mark J.; Peters, Stephen G.; Theodore, Ted G.; Ponce, David A.; John, David A.; and Berger, Byron R.; Zientek, Michael L.; Sidder, Gary B.; Zierenberg, Robert A.

    2004-01-01

    The Humboldt River Basin is an arid to semiarid, internally drained basin that covers approximately 43,000 km2 in northern Nevada. The basin contains a wide variety of metallic and nonmetallic mineral deposits and occurrences, and, at various times, the area has been one of the Nation's leading or important producers of gold, silver, copper, mercury, and tungsten. Nevada currently (2003) is the third largest producer of gold in the world and the largest producer of silver in the United States. Current exploration for additional mineral deposits focuses on many areas in northern Nevada, including the Humboldt River Basin.

  18. In der Naturgeschichte „etwas Höheres suchen“. Zu Humboldts Konzept der Pflanzengeographie

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    Petra Werner

    2015-05-01

    Full Text Available Zusammenfassung Der Erwerb der südamerikanischen Reisetagebücher Alexander von Humboldts durch die Staatsbibliothek Preußischer Kulturbesitz war 2014 ein bedeutendes Ereignis. In einem ersten Schritt wertet der Artikel unveröffentlichte Teile der Tagebücher und Dokumente aus dem Nachlass aus, um den „Kosmos Humboldt´scher Interessen“ zum Thema Pflanzengeographie zu umreißen, darunter auch seine Überlegungen zum Einfluss von Mensch und Tier auf die Ausbreitung von Pflanzen und die Veränderung von Vegetation. Die Einsichten des Gelehrten zur Abhängigkeit Europas von der sogenannten „Neuen Welt“ hinsichtlich der Nahrungsmittel werden ebenso behandelt. So vertrat Humboldt in seinen Ausführungen zum Thema „Was sind Barbaren?“ die These, dass Isolierung von Menschen aus der Gemeinschaft, Elend, Nahrungsmangel, klimatische Ursachen usw. „die Spuren von Zivilisation vertilgen“. Er betonte, dass es nötig sein, in einem weltweiten Wettstreit intellektueller Kräfte die Ressourcenknappheit zu überwinden. Abstract The acquisition of the “American travel diaries” of Alexander von Humboldt in 2014 by the German State Library in Berlin was a major event for the scientific world. As a first step in the scientific evaluation of the recorded observations, measurements and ideas about the geography of plants in Humboldt´s diary, the article outlines the so-called “Cosmos of Humboldt´s interests”. This includes his ideas about the variations of plant species caused by the activities of mankind and also animals. In the article “What are barbarians?”, published in 1826, von Humboldt argued that in order to overcome isolation, human misery, lack of food, climate changes – all forces threatening the decline of civilization – it was necessary to propel a worldwide intellectual contest to overcome the shortage of the planet’s resources.

  19. Humboldt der Seefahrer und sein Marinechronometer Ein Beitrag zur Geschichte der Nautik und Meereskunde

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    Gerhard Kortum

    2001-10-01

    Full Text Available Article in German, Abstracts in English, Spanish and German. HUMBOLDT the Navigator and his ChronometerA Contribution to the History of Navigation and OceanographyHUMBOLDT acquired a remarkable precision time-keeper instrument shortly before he left Paris for his Journey to the Neotropics (1799-1804. This chronometer was made by the famous Swiss-French watchmaker Louis BERTHOUD (1753-1813 with the series number 27. It had belonged to "the celebrated BORDA", as HUMBOLDT stated in his "Personal Narrative". Jean Louis BORDA (1733-1799 was a 18th century French navigator, mathematician and cartographer, who invented or improved a number of geomagnetic instruments. HUMBOLDT used this pocket chronometer for his routine astronomic and geomagnetic observations and to fix the longitude of his position while on board a vessel in the Atlantic and Pacific Ocean. Until John "Timekeeper" HARRISON developed his famous "H 4" chronometer in 1773, a strategic invention for a maritime power as Great Britain, the longitude was a major navigational problem. HUMBOLDT, who confessed that he had a "peculiar predelication for the sea", developed great nautical skills, and his findings were much better than those of the pilots. Furthermore he used the chronometer to observe and calculate ocean currents and to improve the geographical coordinates and thus the maps for many places in Latin America. So, beside his thermometer and barometer, the chronometer certainly was a very basic instrument in the state-of-the-art collection of scientific equipment he bought before leaving Europe.

  20. Alejandro de Humboldt y el quehacer científico

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    León E. Bieber

    2001-01-01

    Full Text Available Por su vasta labor científica, su incansable afhn de forjar una visión holistica del mundo y de vincular conocimiento con principios éticos, el barón Alejandro von Humboldt fue encumbrado al rango de "último sabio universal". A partir de una somera descripción de aquella labor, el aporte incursiona en los factores condicionantes para su obra, las razones que determinaron su fragmentación y marginación en el siglo posterior a su fallecimiento así como su revaloración a partir de mediados del siglo xx. Se sustenta ladificultad y hasta imposibilidad de reactualizar un abordaje científico surgido al calor de la Ilustración y del romanticismo alemán, destacando la necesidad de rescatar los valores humanistas y la concepción ética que guió el quehacer científico del Barón.

  1. Humboldt e o idealismo da época

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    Sebastião Elias Milani

    2008-12-01

    Full Text Available Idealista, Humboldt enunciou no conteúdo de sua obra a essência do pensamento de seu tempo no tocante aos estudos da linguagem e da política. Era um homem estudioso das idéias de seu tempo; foi, portanto, em sua época, um moderno. São conceitos humboldtianos para a língua: o homem vê o mundo do modo como sua língua lhe apresenta esse mundo; e a língua e o pensamento do indivíduo são partes de um conjunto: a língua que o indivíduo fala, o ajuda pensare, conforme ele pensa, mais perfeita fica sua língua. Como era típico entre os pensadores da Gramática Comparada, pesquisou a origem da linguagem humana; da mesma forma que atrela a língua ao espírito da nação.

  2. NATUREZA EM ALEXANDER VON HUMBOLDT: entre a ontologia e o empirismo

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    Antonio Carlos Vitte

    2010-01-01

    Full Text Available El artículo analiza el papel del materialismo y la Naturphilosophie en la construcción del concepto de naturaleza en Alexander von Humboldt. De la reelaboración de las concepciones empirista y materialista de la naturaleza y entrar en un concepción ontológica, los avances de Humboldt y permite un análisis más profundo en la superfi cie de la tierra y sus procesos, crea una nueva ciencia y la creación de la imagen moderna de una naturaleza más allá del mecanismo. Geografía, es este producto y refl exión requiere una sólida base metafísica que permitió a la misma Humboldt recrear los conceptos de la Tierra y el Mundo.

  3. Distribuição e alimentação de duas espécies simpátricas de piranhas Serrasalmus maculatus e Pygocentrus nattereri (Characidae, Serrasalminae do rio Ibicuí, Rio Grande do Sul, Brasil Distribution and feeding of two sympatric species of piranhas Serrasalmus maculatus and Pygocentrus nattereri (Characidae, Serrasalminae of the Ibicuí river, State of Rio Grande do Sul, Brazil

    Directory of Open Access Journals (Sweden)

    Everton R. Behr

    2008-12-01

    Full Text Available Duas espécies de piranhas ocorrem no rio Ibicuí, um dos principais afluentes do rio Uruguai. Com o objetivo de analisar a distribuição e a alimentação destas espécies, foram realizadas coletas de dezembro de 1999 a janeiro de 2002, utilizando-se diferentes artes de pesca em três pontos do rio, sendo que cada ponto foi amostrado em dois ambientes (lêntico e lótico. Foram capturados 203 indivíduos de Serrasalmus maculatus Kner, 1858 e 86 de Pygocentrus nattereri Kner, 1858, sendo que a maior captura de ambas as espécies ocorreu no ambiente lêntico e próximo ao rio Uruguai, onde P. nattereri parece estar mais concentrada. O número de exemplares capturados por horário não apresentou variações significativas em P. nattereri enquanto que S. maculatus apresentou a maior captura na revisão da meia-noite. Juvenis de S. maculatus (2-4 cm de comprimento padrão consumiram preferencialmente nadadeiras e insetos. Nas demais classes de tamanho de ambas as espécies, restos de peixes foi o alimento predominante, havendo sobreposição alimentar intra e interespecífica nas maiores classes (8-16 cm e >16 cm de comprimento padrão. Não foram constatadas diferenças no índice de repleção entre os horários e os ambientes para as duas espécies.Two species of piranhas occur in the Ibicuí River, one of the main tributaries of the Uruguay River in southern Brazil, Serrasalmus maculatus Kner, 1858 and Pygocentrus nattereri Kner, 1858. In order to analyze the distribution and feeding habits of these species we conducted collecting expeditions from December 1999 to January 2002, using a variety of fishing gears in three sites along the river, both in lentic and lotic habitats. A total of 203 individuals of S. maculatus and 86 of P. nattereri were caught, mostly in lentic habitats and closer to the Uruguay River, were P. nattereri seems to be more concentrated. The number of individuals captured at different times did not show variation in P

  4. Die Fußnote über Geognosia in Humboldts Florae Fribergensis specimen

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    Herbert Pieper

    2007-04-01

    Full Text Available Article in German, Abstracts in English and GermanHumboldt distinguished between three disciplines dealing with the inquiring of the earth: geognosia, historia telluris, physiografia. In 1793, he used the notion of “Geognosie” for the first time. He explained the notion in a footnote that was reprinted in 1815, 1817, and again in 1845. The paper analyses the meaning attributed by Humboldt to the notion of “Geognosie” and gives a new German translation of the Latin texts of the footnote.

  5. „Warum ich nicht Diorit-Trachyt sagen soll.“ – Ein geologischer Brief Gustav Roses an Alexander von Humboldt

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    Konstantin Treuber

    2014-08-01

    Full Text Available Zusammenfassung Gustav Rose (1798-1873 begleitete Alexander von Humboldt auf seiner Russlandreise und stand bis zu Humboldts Tod persönlich und postalisch zum ihm in Kontakt. Die Edition des vorliegenden Briefs zielt darauf ab, die Bedeutung der Person Gustav Rose in ihrer Beziehung zu Alexander von Humboldt und ihrem Einfluss auf den mineralogisch-geologischen Teil des Kosmos zu beleuchten und dem Leser dieses interessante historische Dokument zugänglich zu machen. Abstract Gustav Rose (1798-1873 accompanied Humboldt on his journey to Russia. He kept in touch with Humboldt after this expedition until Humboldt died in 1859. The edition of the letter at hand aims at highlighting Rose’s relation to Humboldt and how he influenced the geological and mineralogical part of the Kosmos. It shall also make this impressive historical document accessible to readers by providing illustrating annotations.

  6. Leaping eels electrify threats, supporting Humboldt's account of a battle with horses.

    Science.gov (United States)

    Catania, Kenneth C

    2016-06-21

    In March 1800, Alexander von Humboldt observed the extraordinary spectacle of native fisherman collecting electric eels (Electrophorus electricus) by "fishing with horses" [von Humboldt A (1807) Ann Phys 25:34-43]. The strategy was to herd horses into a pool containing electric eels, provoking the eels to attack by pressing themselves against the horses while discharging. Once the eels were exhausted, they could be safely collected. This legendary tale of South American adventures helped propel Humboldt to fame and has been recounted and illustrated in many publications, but subsequent investigators have been skeptical, and no similar eel behavior has been reported in more than 200 years. Here I report a defensive eel behavior that supports Humboldt's account. The behavior consists of an approach and leap out of the water during which the eel presses its chin against a threatening conductor while discharging high-voltage volleys. The effect is to short-circuit the electric organ through the threat, with increasing power diverted to the threat as the eel attains greater height during the leap. Measurement of voltages and current during the behavior, and assessment of the equivalent circuit, reveal the effectiveness of the behavior and the basis for its natural selection.

  7. El naturalista Alejando de Humboldt, Cavanilles y Juan Andrés

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    María-Rosario MARTÍ MARCO

    2009-11-01

    Full Text Available RESUMEN: Tras una breve introducción en la que se traza un paralelismo entre el erudito Juan Andrés y el naturalista Alejandro de Humboldt, se presenta una síntesis de la relevancia del viaje científico de Humboldt iniciado en España. Las referencias sobre la figura y trabajo de Humboldt y, en menor medida, sobre Cavanilles en la gran obra total de Andrés demuestran el vigor intelectual de éste, quien subraya muchos de los elementos fundamentales del legado humboldtiano.ABSTRACT: This paper begins with a brief introduction to the similarities between the scholar Juan Andrés and the naturalist Alexander von Humboldt and continues with a summary of the relevance of Humboldt’s scientific expedition which began in Spain. The references to Humboldt’s persona and endeavours, and to a lesser extent to Cavanilles, in all of Andrés’ great works demonstrate the intellectual ability of the author who pinpoints many of the fundamental aspects of Humboldt’s legacy.

  8. El baúl de Humboldt : comunicado sobre un hallazgo histórico

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    Gerardo Paz Otero

    1979-01-01

    Full Text Available La Televisora del Berlín libre, en homenaje a la memoria de Alejandro von Humboldt y su obra científica en Indoamérica, acordó hacer una filmación cultural sobre el histórico recorrido que hiciera él durante cinco años.

  9. Écriture (autobiographique dans l'Examen critique d'Alexandre de Humboldt

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    Julian Drews

    2016-11-01

    Full Text Available Zusammenfassung Der Bezug auf Kolumbus ist ein Gemeinplatz der Humboldtbiographik. Humboldt selbst betont ihn besonders in seinem Examen critique, wo er eine autobiographische Dimension gewinnt. Der Beitrag geht aus literaturwissenschaftlicher Perspektive dem Material und den Formen der Inszenierung nach, mit denen ein Leben über ein anderes dargestellt wird.  Résumé La référence à Colomb est un lieu commun de la biographie humboldtienne. Humboldt lui-même le souligne particulièrement dans son Examen critique, en y ajoutant une dimension autobiographique. La contribution analyse, dans une perspective philologique, le matériel et les formes de mise en scène avec lesquelles une vie est représentée au travers d'une autre.  Summary The reference to Columbus is a commonplace in Humboldt-biography. Humboldt himself is using it in his Examen critique which subjoins a auto-biographical dimension. This articel examines from a philological point of view the materials and literary strategies by which one life comes to represent another.

  10. 76 FR 21329 - Humboldt-Toiyabe National Forest; Nevada; Environmental Impact Statement for Geothermal Leasing...

    Science.gov (United States)

    2011-04-15

    ... Leasing on the Humboldt-Toiyabe National Forest AGENCY: Forest Service, USDA. ACTION: Notice of Intent to... geothermal leasing availability. The project area includes NFS lands on the HTNF in Douglas, Lyon, Mineral... leasing, and if so, to identify reasonable and necessary conditions to protect surface resources. The...

  11. An Ecologic Characterization and Landscape Assessment of the Humboldt River Basin

    Science.gov (United States)

    The Humboldt River Basin covers a large part of northern Nevada. Very little is known about the water quality of the entire Basin. The people living in this area depend on clean water. Not knowing about water quality is a concern because people will need to manage the negative...

  12. How Alexander von Humboldt's life story can inspire innovative soil research in developing countries

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    J. Bouma

    2017-09-01

    Full Text Available The pioneering vision of Alexander von Humboldt of science and society of the early 1800s is still highly relevant today. His open mind and urge to make many measurements characterizing the interconnected web of life are crucial ingredients as we now face the worldwide challenge of the UN Sustainable Development Goals. Case studies in the Philippines, Vietnam, Kenya, Niger, and Costa Rica demonstrate, in Alexander's spirit, interaction with stakeholders and attention to unique local conditions, applying modern measurement and modeling methods and allowing inter- and transdisciplinary research approaches. But relations between science and society are increasingly problematic, partly as a result of the information revolution and post-truth, fact-free thinking. Overly regulated and financially restricted scientific communities in so-called developed countries may stifle intellectual creativity. Researchers in developing countries are urged to leapfrog these problems in the spirit of Alexander von Humboldt as they further develop their scientific communities. Six suggestions to the science community are made with particular attention to soil science. (The Humboldt lecture, presented by the 2017 recipient of the Alexander von Humboldt lecture, Johan Bouma, can be accessed at http://client.cntv.at/egu2017/ml1.

  13. Perfecting the Individual: Wilhelm von Humboldt's Concept of Anthropology, "Bildung" and Mimesis

    Science.gov (United States)

    Wulf, Christoph

    2003-01-01

    In the works of Wilhelm von Humboldt education took on a new quality, focusing firmly on the importance of the individual. "Bildung" was to become the principal task with a view to preparing the individual for the requirements of future life. In this article, the author investigates two aspects relating to the "Bildung" of the individual. First,…

  14. Humboldt Bay Wetlands Review and Baylands Analysis. Volume I. Summary and Findings.

    Science.gov (United States)

    1980-08-01

    have been , arried out ii; the Humboldt area. The estim t.ed ]e,(I of .... .. . .. ... ... ... . . ... .l l-"... . .. . . . . . ., , i I...of the two better describes the poter .- tial for a given area to be a source of energy for the major food webs in the estuary. ib) Secondary

  15. Fine sediment sources in coastal watersheds with uplifted marine terraces in northwest Humboldt County, California

    Science.gov (United States)

    Stephen Sungnome Madrone; Andrew P. Stubblefield

    2012-01-01

    Erosion in the Mill and Luffenholtz Creek watersheds in Humboldt County, California, with their extensive clay soils, can lead to high turbidity levels in receiving bodies of water, increasing the costs of treating water for domestic water supplies. Detailed road and erosion surveys and monitoring of suspended sediment, discharge, and turbidity levels in Mill Creek (3....

  16. How Alexander von Humboldt's life story can inspire innovative soil research in developing countries

    Science.gov (United States)

    Bouma, Johan

    2017-09-01

    The pioneering vision of Alexander von Humboldt of science and society of the early 1800s is still highly relevant today. His open mind and urge to make many measurements characterizing the interconnected web of life are crucial ingredients as we now face the worldwide challenge of the UN Sustainable Development Goals. Case studies in the Philippines, Vietnam, Kenya, Niger, and Costa Rica demonstrate, in Alexander's spirit, interaction with stakeholders and attention to unique local conditions, applying modern measurement and modeling methods and allowing inter- and transdisciplinary research approaches. But relations between science and society are increasingly problematic, partly as a result of the information revolution and post-truth, fact-free thinking. Overly regulated and financially restricted scientific communities in so-called developed countries may stifle intellectual creativity. Researchers in developing countries are urged to leapfrog these problems in the spirit of Alexander von Humboldt as they further develop their scientific communities. Six suggestions to the science community are made with particular attention to soil science. (The Humboldt lecture, presented by the 2017 recipient of the Alexander von Humboldt lecture, Johan Bouma, can be accessed at http://client.cntv.at/egu2017/ml1" title="" class="ref">http://client.cntv.at/egu2017/ml1.)

  17. A OBRA DE HUMBOLDT E SUA PROVÁVEL INFLUÊNCIA SOBRE A ANTROPOLOGIA DE FRANZ BOAS

    Directory of Open Access Journals (Sweden)

    Vicente Eudes Lemos Alves

    2005-08-01

    Full Text Available O texto analisa a trajetória de Alexander von Humboldt com o intuito de investigar as contribuições da Geografia na formação do pensamento antropológico no século XIX. Busca-se enfocar, por um lado, as temáticas abordadas por Humboldt e por Franz Boas em seus universos de estudo. Por outro lado, mais detidamente, procura-se apontar as possíveis influências das formulações teóricas e dos procedimentos metodológicos de Humboldt nos trabalhos antropológicos de Boas.

  18. Himmelsblau. Bemerkungen zum Thema „Farben“ in Humboldts Alterswerk Kosmos. Entwurf einer physischen Weltbeschreibung

    Directory of Open Access Journals (Sweden)

    Petra Werner

    2006-04-01

    Full Text Available Articel in German, Abstracts in English and German.For the greater part of his life, Alexander von Humboldt was interested in colour phenomena which he observed in nature. These observations led him to do research into phenomena such as the blue colour of the sky, enigmatic dust and hail, and the colour of plants. Humboldt corresponded with many scientists about the connection between sunlight and the creation of colours, about coloured shadows, the Blue Cave in Capri, the colour of stars, plants etc. Claude-Louis Berthollet developed a model for the composition of a blue colour (Indigo, a technology which was of great importance to the textile industry.The present paper focuses on Humboldt’s interest in the blue colour of the sky, which he shared with artists, writers and scientists like Johann Wolfgang von Goethe, Christian Gottfried Lichtenberg, Caspar David Friedrich and Horace Bénédict de Saussure. During his travels in South America, Humboldt used Saussure’s cyanometer to determine the intensity of the blue colour of the sky. Later he corresponded about this instrument with his friend François Arago who had invented a cyanometer based on chromatic polarisation. While Humboldt was working on his “Cosmos”, Arago explained to his friend the latest results in physics, especially in polarography. Towards the end of his life, Humboldt corresponded with the painter J. G. Schall and admitted that he had somewhat lost his interest in the physical explanation of the blue colour of the sky.

  19. Post-moult movements of sympatrically breeding Humboldt and Magellanic Penguins in south-central Chile

    Directory of Open Access Journals (Sweden)

    Klemens Pütz

    2016-07-01

    Full Text Available Ten Humboldt (Spheniscus humboldti and eight Magellanic Penguins (S. magellanicus were successfully equipped with satellite transmitters in March 2009 on Islotes Puñihuil in central south-Chile to follow their post-moult dispersal. Overall, Humboldt Penguins could be followed for a mean period of 49 ±18 days (range: 25–93 and Magellanic Penguins for 57 ±12 days (range 35–68. Irrespective of species and sex, seven study birds remained in the vicinity of their breeding ground throughout the transmission period. All other penguins moved northwards, either only a relatively short distance (max 400 km to Isla Mocha at 38°S (n=3 or further north beyond 35°S (n=8. However, eight of these birds (73% turned south again towards the end of the individual tracking periods. The total area used by both species during the tracking period was restricted to a coastal area stretching from the breeding site at 42°S about 1000 km to the north at about 32°S. The area used by Humboldt penguins overlapped by 95% the area used by Magellanic penguins, whereas the area used by the latter species was much larger and overlapped only by 45% with the area used by Humboldt penguins. Overall, our results indicate that Magellanic Penguins in the Pacific Ocean are probably less migratory than their conspecifics on the Atlantic side, while Humboldt Penguins appear to be more migratory than previously anticipated. In general, there was a poor relationship between preferred foraging areas and chlorophyll-a, as a proxy for primary productivity, indicating the limitations of using remote-sensed primary productivity as a proxy to interpret the foraging behaviour of marine predators. In addition, there was also no clear relationship between the preferred foraging areas and the amount of regional fish catches by artisanal fishery.

  20. Humboldts Hefte. Geschichte und Gegenwart von Tagebuch-Forschung und -Rezeption

    Directory of Open Access Journals (Sweden)

    Tobias Kraft

    2015-12-01

    Full Text Available Zusammenfassung Der 2013 geglückte Ankauf der Amerikanischen Tagebücher durch ein Konsortium öffentlicher und privater Geldgeber hat es nicht nur ermöglicht, Alexander von Humboldts Reisemanuskripte zum ersten Mal einer breiten interessierten Öffentlichkeit vorzustellen, sondern wirft auch ein besonderer Licht auf die Geschichte ihrer Rezeption und Erforschung. Welche Phasen der Arbeit und Auswertung der Tagebücher lassen sich nachzeichnen? Und an welchem Punkt steht die Humboldt-Forschung in dieser Frage heute? Resumen La compra de los diarios del viaje americano, efectuada en 2013 por un consorcio de donadores públicos y privados, no sólo permitió presentar los manuscritos del viaje de Alejandro de Humboldt por primera vez a un público más grande, sino también arroja nueva luz sobre la historia de su recepción e investigación. El artículo pone énfasis en los siguientes puntos: ¿Cuáles han sido las fases del trabajo con los diarios y de su evaluación? ¿Y en qué punto estamos hoy en los estudios sobre Humboldt? Abstract The 2013 purchase of the American Travel Journals through a joint effort of public and private donors has not only given the general public a chance to see Alexander von Humboldt’s original manuscripts. It has also shed a new light on the history of their reception and the research related to their content. The article distuinguishes different stages of work with and analysis of the journals and reflects upon their relevance for today’s research on Alexander von Humboldt.

  1. Fitocenosis en las pluvisilvas sobre ofiolitas del Parque Nacional Alejandro de Humboldt, Cuba Oriental / Phytocoenoses on ophiolites in the rain forests of Alejandro de Humboldt National Park, Eastern Cuba

    National Research Council Canada - National Science Library

    Orlando J. Reyes; Félix Acosta Cantillo

    2017-01-01

    Se estudiaron las condiciones fisionómicas, ecológicas y fitosociológicas de las fitocenosis observadas en los dos tipos de pluvisilvas sobre ofiolitas presentes en el Parque Nacional Alejandro de Humboldt; ellas son...

  2. Fitocenosis en las pluvisilvas sobre ofiolitas del Parque Nacional Alejandro de Humboldt, Cuba Oriental Phytocoenoses on ophiolites in the rain forests of Alejandro de Humboldt National Park, Eastern Cuba

    National Research Council Canada - National Science Library

    Orlando J Reyes, Félix Acosta Cantillo

    2017-01-01

    Se estudiaron las condiciones fisionómicas, ecológicas y fitosociológicas de las fitocenosis observadas en los dos tipos de pluvisilvas sobre ofiolitas presentes en el Parque Nacional Alejandro de Humboldt; ellas son...

  3. Unterwegs zum Weltbewußtsein. Alexander von Humboldts Wissenschaftsverständnis und die Entstehung einer ethisch fundierten Weltanschauung

    Directory of Open Access Journals (Sweden)

    Ottmar Ette

    2000-10-01

    Full Text Available Article in German, Abstracts in English and Spanish. Towards Global Consciousness. Alexander von Humboldt's Conception of Science and the emerging ethical Weltanschauung. In the context of recent reflections upon global ethics (Hans Küng, global democracy (Otfried Höffe and a new cultural situation after the end of the Cold War (Clifford Geertz, Alexander von Humboldt's concept of global consciousness (Weltbewußtsein marks a decisive point in the ungoing process of the construction of a new ethics of globalization. This article tries to show how Humboldt's transdisciplinary and intercultural conception of sience as WorldWideWeb integrates Kant's philosophical visions of global political institutions and formulates a critique of the non-empirical foundations of Hegel's teleological Weltanschauung. From his Visions of Nature and his Personal Narrative to his Cosmos, Humboldt's theory and practice of science help us to find a new ethos and new answers to the contemporary questions of divergent modernities.

  4. Humboldt, Historismus, Humboldteanisierung. Der "Geschichtsschreiber von Amerika", die Massensklaverei und die Globalisierungen der Welt. Fortsetzung von HiN 3.

    Directory of Open Access Journals (Sweden)

    Michael Zeuske

    2002-04-01

    Full Text Available Article in German, Abstracts in English and Spanish.Humboldt, (German historicism, humboldteanization.The ‘historian of America", mass slavery and the globalisations of the world.This article treats Alexander von Humboldt as an Atlantic intellectual, not only as an european intellectual. The article tries to analize also the "Ensayo político sobre la Isla de Cuba" as a key text of the second globalization ("industrial revolution". Against the background of our knowledge about the reality at the beginnings of the 19th century the article analizes the humboldtian presentation of this reality during his stay in Cuba (1801/1804, confronting it with his "Essay" about Cuba (1826-1831, as well tries to demonstrate the position of Humboldt in the historical thinking. The third part explains the relations of Humboldt to the network of Cuban intellectuals and with some important personalities of the Cuban elite (Arango, Calvo in the development of his work.

  5. Aus dem Humboldt-Nachlaß: Juan José de Oteyzas Beschreibung der Pyramiden von Teotihuacán

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    Ulrike Leitner

    2006-04-01

    Full Text Available Article in German, Abstracts in English, German and Spanish.The papers of Alexander von Humboldt in Cracow (Poland contain materials related to Mexico and Cuba, which Humboldt had collected. Among them is a manuscript describing Teotihuacan by Juan José de Oteyza, whom Humboldt had met during his stay at the “Real Seminario de Minería” in Mexico City. Humboldt himself never visited this pyramid precinct. In cases like these he used his extensive information network to complete his own observations in his travel journals. This can be seen in the following comparison of Oteyza’s manuscript with Humboldt’s text which was published later.

  6. The state of pediatric asthma in Chicago's Humboldt Park: a community-based study in two local elementary schools

    OpenAIRE

    2010-01-01

    Abstract Background Pediatric asthma is a serious public health problem in Chicago and has been designated a high priority concern by residents of Chicago's Humboldt Park, a diverse community area with a large number of Puerto Rican, African American, and Mexican American families. Methods In May 2009, following the principles of community-based participatory research, a cross-sectional asthma screening survey was administered to adult caregivers of children attending two Humboldt Park elemen...

  7. Reproductive biology of freshwater fishes from the Venezuelan floodplains.

    Science.gov (United States)

    Guerrero, H Y; Cardillo, E; Poleo, G; Marcano, D

    2009-03-01

    This review describes the endocrine changes that occur during the annual reproductive cycle of Pygocentrus cariba, Pimelodus blochii, and Oxydoras sifontesi and their relationships with the environmental characteristics of Venezuelan floodplains. Most reproductive studies of teleosts have focused on changes that occur during annual cycles in temperate species but, in tropical fish, this has been examined less frequently. P. cariba, P. blochii, and O. sifontesi are seasonal breeders widely distributed along the Orinoco River. Under natural conditions they have an annual gonadal cycle closely related to changes in the annual hydrology cycle of the Orinoco River which defines two seasons on the floodplain: inundation and isolation. The reproductive cycle of these species seems to be controlled by cues from the external environment. Relevant data about gonadal maturation, for example gonadosomatic index and sexual hormones secretion, are contrasted. The role of catecholamines in neuroendocrine control of the reproductive axis is also considered in this work.

  8. “Ein beschränkter Verstandesmensch ohne Einbildungskraft” Anmerkungen zu Friedrich Schillers Urteil über Alexander von Humboldt

    Directory of Open Access Journals (Sweden)

    Ingo Schwarz

    2003-04-01

    Full Text Available Article in German, Abstract in English. In a letter dated August 6, 1797 to his friend Christian Gottfried Körner, Friedrich Schiller characterized Alexander von Humboldt as a person of limited imagination, who, in spite of his numerous activities, would never be able to achieve greatness in his scientific pursuits. Yet, only in 1849 did Humboldt learn of Schiller’s opinion from the published correspondence between Schiller and Körner. Nonetheless, Humboldt declared that this basically unjust characterization of himself by Schiller would never prevent him from admiring the great German playwright and poet; moreover, Humboldt looked for comfort in a similarly harsh opinion of Johann Gottfried Herder also expressed by Schiller. In the end, Humboldt could barely conceal his feelings of disappointment regarding Schiller’s opinion, especially because Humboldt had considered Schiller to be his friend.

  9. Blue Mountain, Humboldt County, Nevada, U.S.A

    Energy Technology Data Exchange (ETDEWEB)

    Ted Fitzpatrick, Brian D. Fairbank

    2005-04-01

    The report documents the drilling of well Deep Blue No.2, the second deep geothermal test hole at the Blue Mountain Geothermal Area, Humboldt County, Nevada. The well was drilled by Noramex Corp, a Nevada company, with funding support from the US Department of Energy, under the DOE’s GRED II Program. Deep Blue No.2 was drilled as a ‘step-out’ hole from Deep Blue No.1, to further evaluate the commercial potential of the geothermal resource. Deep Blue No.2 was designed as a vertical, slim observation test hole to a nominal target depth of 1000 meters (nominal 3400 feet). The well tests an area of projected high temperatures at depth, from temperature gradients measured in a group of shallow drill holes located approximately one kilometer to the northeast of observation hole Deep Blue No.1. The well is not intended for, or designed as, a commercial well or a production well. Deep Blue No.2 was spudded on March 25, 2004 and completed to a total depth of 1127.76m (3700 ft) on April 28, 2004. The well was drilled using conventional rotary drilling techniques to a depth of 201.17 m (660 ft), and continuously cored from 201.17m (660 ft) to 1127.76m (3700 ft). A brief rig-on flow-test was conducted at completion to determine basic reservoir parameters and obtain fluid samples. A permeable fracture zone with measured temperatures of 150 to 167°C (302 to 333°F) occurs between 500 to 750m (1640 to 2461ft). The well was left un-lined in anticipation of the Phase III - Flow and Injection Testing. A further Kuster temperature survey was attempted after the well had been shut in for almost 3 weeks. The well appears to have bridged off at 439m (1440ft) as the Kuster tool was unable to descend past this point. Several attempts to dislodge the obstruction using tube jars were unsuccessful. Deep Blue No.2 encountered variably fractured and veined, fine-grained rocks of the Singas Formation, and intruded by minor strongly altered fine-grained felsic dikes, and less altered

  10. The presentation of the results of Alexander von Humboldt's voyage to Carlos IV

    Directory of Open Access Journals (Sweden)

    Miguel Ángel Puig-Samper

    2016-05-01

    Full Text Available Resumen  Desde nuestras primeras investigaciones sobre la estancia de Alexander von Humboldt en España siempre nos sorprendió la ausencia de una mínima relación posterior del sabio prusiano con la corona española y sus autoridades. Iniciada una nueva investigación, encontramos que efectivamente se produjo el envío de un primer trabajo a Carlos IV desde Roma acompañado de una carta de gratitud por la protección recibida durante su viaje americano y de sumisión a la corona española, que ahora presentamos.   Summary Ever since our first research into Alexander von Humboldt's stay in Spain, the absence of an ensuing relationship between the wise Prussian and the Spanish Crown and Authorities had always surprised us. On starting new research, we found that indeed he sent his first work to Carlos IV from Rome accompanied by a letter of gratitude for the protection he had received during his American trip and submission to the Spanish Crown, which we now present. This first literary fruit of his voyage, which Alexander von Humboldt alluded to in the letter is the first instalment of his work Plantes Équinoxiales, Recueillies au Mexique, dans l’ile de Cuba, dans les provinces de Caracas, de Cumana etc., published in Paris in 1805.   Zusammenfassung Seit unseren ersten Forschungen über den Aufenthalt Alexander von Humboldts in Spanien hat uns das Fehlen einer hieran anschließenden Beziehung des preußischen Wissenschaftlers mit der spanischen Krone und ihren Behörden erstaunt. Im Laufe einer erneuten Aufnahme der Forschung, haben wir nun entdeckt, dass Humboldt in der Tat von Rom aus eine erste Arbeit an Karl IV gesandt hatte, zusammen mit einem Schreiben des Dankes (für den während der amerikanischen Reise erhaltenen Schutz sowie seiner Unterordnung unter die spanische Krone, das wir nun präsentieren. Das erste literarische Ergebnis seiner Reise, auf das Humboldt in diesem Brief verweist, ist der erste Faszikel seines Werkes

  11. Connecting the New World. Nets, mobility and progress in the Age of Alexander von Humboldt

    Directory of Open Access Journals (Sweden)

    Moritz von Brescius

    2012-12-01

    Full Text Available Zusammenfassung Dieser Artikel untersucht das Verhältnis zwischen den revolutionären technologischen Neuerungen des 19. Jahrhunderts und dem Leben und Wirken Alexander von Humboldts (1769-1859. Dabei wird gefragt, wie Humboldt versuchte, die neuen und sprichwörtlich bahnbrechenden Kommunikations- und Transporttechnologien seiner Zeit zu nutzen, um den amerikanischen Kontinent in globale kommerzielle und kulturelle Austauschprozesse zu integrieren. Jüngere Forschungen zu Humboldts amerikanischer Expedition (1799-1804 haben behauptet, dass seine Beschreibungen Südamerikas den Kontinent für zahlreiche „transformative interventions“ (Pratt von Seiten europäischer Kapitalisten und Investoren zugänglich gemacht hätten. Diese Studien haben jedoch nicht analysiert, aus welchen Motiven heraus Humboldt diese Eingriffe in die Natur unterstützte. Darüber hinaus wurde nicht der zentralen Frage nachgegangen, welche Rolle diese Projekte in Humboldts eigener Auffassung über die Kräfte des gesellschaftlichen Fortschritts gespielt haben. Um Humboldts Unterstützung für tiefgreifende Eingriffe in die Natur Amerikas nachvollziehen zu können, analysiert dieser Artikel zunächst, welche Rolle der „Geodeterminismus“ und die Fortschrittstheorien der Aufklärung in seinem Verständnis von zivilisatorischer Entwicklung spielten. Dabei sollen solche Beispiele menschlicher Interventionen in die Natur Amerikas untersucht werden, die Humboldt selbst aktiv förderte – nicht zuletzt, da sie geeignet schienen, „natürliche“ Barrieren für gesellschaftliche Austauschprozesse zu beseitigen. Dies waren vor allem die Nutzung von Dampfschiffen, elektrischer Telegrafie, Eisenbahnen und großangelegten Kanalprojekten, deren gebündelte Effekte zu einer signifikanten Beschleunigung von Welthandel und Kommunikationsprozessen führten. Diese zeitgenössischen Innovationen sollen mit den vier Motiven „Netz“, „Mobilität“, „Fortschritt“ und

  12. Eine Frau in der Kultur, die Kultur einer Frau: Caroline von Humboldt. A woman in the culture, the culture of a woman: Caroline von Humboldt

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    Elžbieta M. Kowalska

    2008-01-01

    Full Text Available The subject of this presentation is Wilhelm von Humboldt’s wife, Alexander von Humboldt’s sisterin-law, a close female friend of Lotte Schiller and of her sister, Caroline von Wolzogen, held in high regard by Goethe, admired by Schiller, the former Fräulein von Dacheröden from Erfurt, the future Caroline von Humboldt. She was the ancestress of one of the most respected and best German noble families, a mother of eight children, an intellectually gifted woman, in which the German ideals of femininity were fulfilled, who knew to lead the salons and to talk about arts and literature.

  13. Forschungsdatenmanagement an Hochschulen: das Beispiel der Humboldt-Universität zu Berlin

    Directory of Open Access Journals (Sweden)

    Maxi Kindling

    2013-10-01

    Full Text Available Wie nahezu jede wissenschaftliche Einrichtung steht auch die Humboldt-Universität zu Berlin heute vor der Herausforderung mit den zunehmend in digitaler Form vorliegenden Forschungsdaten umzugehen. Basierend auf den Ergebnissen einer im Jahr 2013 durchgeführten Umfrage zum Umgang mit digitalen Forschungsdaten werden die Ausgangssituation charakterisiert, der Status Quo eingeordnet und strategische Überlegungen für das Forschungsdatenmanagement vorgestellt. Nearly all academic institutions are presently facing the challenge of ever-growing amounts of digital research data. A comprehensive survey on current research data holdings and researchers needs in supporting their path to good research data management was run at Humboldt-Universität zu Berlin in the first quarter of 2013. In this paper we present the initial situation, evaluate the status quo and reflect about the next strategic steps.

  14. Die Entstehung einer Legende. Alexander von Humboldts angeblicher Ausspruch über Salzburg.

    Directory of Open Access Journals (Sweden)

    Robert Hoffmann

    2006-04-01

    Full Text Available Article in German, Abstract in English.This paper sheds light on the history of the quotation “I regard the environs of Salzburg, Naples, and Constantinople as the most beautiful on earth”, which is usually attributed to Alexander von Humboldt. The author shows that Humboldt’s alleged praise of Salzburg first appeared around 1870, and thus the quotation cannot be regarded as authentic. As a local legend it was meant to connect permanently the famous name of Humboldt with that of the growing centre of tourism. The circumstances under which the quotation found its way into the literature remain to be investigated; however, it seems clear that this can be seen as a typical example of what Eric Hobsbawm has called „invention of tradition“. Invented traditions – this might comfort the tourist industry of Salzburg – have particularly long lives.

  15. From Alexander von Humboldt to Frederic Edwin Church: Voyages of Scientific Exploration and Artistic Creativity

    Directory of Open Access Journals (Sweden)

    Frank Baron

    2005-04-01

    Full Text Available Article in English, Abstracts in Spanish, German and English.Stephen Jay Gould wrote recently that “when Church began to paint his great canvases, Alexander von Humboldt may well have been the world’s most famous and influential intellectual.” Humboldt’s influence in the case of the landscape artist Church is especially interesting. If we examine the precise relationship between the German explorer and his American admirer, we gain an insight into how Humboldt transformed Church’s life and signaled a new phase in the career of the artist. Church retraced Humboldt’s travels in Ecuador and in Mexico. If we compare the texts available to Church and the comparison of Church’s paintings and the texts and images of Humboldt’s works we can arrive at new perspectives on Humboldt’s extraordinary influence on American landscape painting in the nineteenth century.

  16. Unterwegs zu einer Weltwissenschaft? Alexander von Humboldts Weltbegriffe und die transarealen Studien

    Directory of Open Access Journals (Sweden)

    Ottmar Ette

    2006-10-01

    Full Text Available Article in German, Abstracts in English, German and Spanish.Alexander von Humboldt's world concepts inscribe themselves in the tradition of a reflexion on the second period of accerelated globalization during the second half of the 18th century. The polysemic structure of concepts like world consciousness (Weltbewusstsein is embetted in a vision, understanding and practice of science that can be described as transdisciplinary, intercultural, democraticaly popularizing, cosmopolitan, fractal and transregional. Alexander von Humboldt's new discourse on the Americas can be best understood as a fine example for TransArea Studies highlighting an area's characteristics by developing its relationships and dynamics within a worldwide network of informations, dependencies, exchanges and correspondances.

  17. Berglinien im Vergleich. Bemerkungen zu einem klimageografischen Diagramm Alexander von Humboldts

    OpenAIRE

    2013-01-01

    Zusammenfassung Der Artikel analysiert aus bildwissenschaftlicher und historischer Perspektive die unveröffentlichte Skizze zu einem Bergdiagramm aus dem handschriftlichen Nachlass Alexander von Humboldts. Das mehrfach beklebte Skizzenblatt stand im Zentrum klimageografischer Fragestellungen nach den Gründen für die weltweit unterschiedlich hohen Schneegrenzen in Gebirgen. Aufgrund des unfertigen, skizzenhaften Charakters des Diagramms lassen sich Fragen über den Forschungskontext des Dia...

  18. Nutrients, oxygen and biogeochemical processes in the Humboldt upwelling current system off Peru

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    Michelle I. Graco

    2013-04-01

    Full Text Available The upwelling system of the Humboldt Current, is considered among the most productive systems in the world, extending along the eastern South Pacific off Chile and Peru. In particular the coastal waters off Peru attracted considerable interest for being among the most fertile and productive the world, highlighting fisheries, such as anchovy, which represent one of the pillars of the economy of Peru.

  19. Tras la huella de la vida. El proyecto de larga duración „Centro Alejandro de Humboldt. Ciencia en movimiento“ edita los apuntes transdisciplinarios de Humboldt

    Directory of Open Access Journals (Sweden)

    Ottmar Ette

    2015-12-01

    Full Text Available Zusammenfassung Das Langzeitvorhaben “Alexander von Humboldt auf Reisen – Wissenschaft aus der Bewegung“, das 2015 an der Berlin-Brandenburgischen Akademie der Wissenschaften begann, umfasst die vollständige Edition der Manuskripte Alexander von Humboldts zum Themenkomplex Reisen an der Schnittstelle von Kultur- und Naturwissenschaften. Die Frage nach dem Leben und dem Zusammenleben bei Humboldt begleitet die Forschungsprojekte rund um das Vorhaben. Die Überlegungen beruhen auf drei Säulen: Relationalität, Wechselbeziehung von Wissenschaft und Ästhetik und Bewegung. Abstract The long-term research project “Traveling Humboldt – Science on the move”, which started in 2015 at the Berlin-Brandenburg Academy of Sciences and Humanities, involves the complete edition of the manuscripts of Alexander von Humboldt on the topical complex ‘journeys’. The research projects accompanying the Academy project focus on Humboldt’s concept of life and conviviality. These focus points center around three pillars: relationality, the reciprocity of science and aesthetics and movement. Resumen El proyecto de larga duración “Centro Alejandro de Humboldt – Ciencia en movimiento” (iniciado en 2015 de la Academia de las Ciencias y Humanidades Berlín-Brandemburgo tiene como objetivo la edición de los manuscritos de viaje del famoso autor, naturalista, cosmopólito y viajero. La edición incluirá los manuscritos de sus dos viajes hemisféricos (América, Asia como también los de su legado literario. La pregunta esencial que acompaña las investigaciones en torno al proyecto de la Academia es la importancia que Humboldt le da a la vida y a la convivencia. Los tres pilares en los que descansa la reflexión son:  la relacionalidad, la concomitancia entre ciencia y estética y el movimiento.

  20. Contrasting patterns of selection between MHC I and II across populations of Humboldt and Magellanic penguins.

    Science.gov (United States)

    Sallaberry-Pincheira, Nicole; González-Acuña, Daniel; Padilla, Pamela; Dantas, Gisele P M; Luna-Jorquera, Guillermo; Frere, Esteban; Valdés-Velásquez, Armando; Vianna, Juliana A

    2016-10-01

    The evolutionary and adaptive potential of populations or species facing an emerging infectious disease depends on their genetic diversity in genes, such as the major histocompatibility complex (MHC). In birds, MHC class I deals predominantly with intracellular infections (e.g., viruses) and MHC class II with extracellular infections (e.g., bacteria). Therefore, patterns of MHC I and II diversity may differ between species and across populations of species depending on the relative effect of local and global environmental selective pressures, genetic drift, and gene flow. We hypothesize that high gene flow among populations of Humboldt and Magellanic penguins limits local adaptation in MHC I and MHC II, and signatures of selection differ between markers, locations, and species. We evaluated the MHC I and II diversity using 454 next-generation sequencing of 100 Humboldt and 75 Magellanic penguins from seven different breeding colonies. Higher genetic diversity was observed in MHC I than MHC II for both species, explained by more than one MHC I loci identified. Large population sizes, high gene flow, and/or similar selection pressures maintain diversity but limit local adaptation in MHC I. A pattern of isolation by distance was observed for MHC II for Humboldt penguin suggesting local adaptation, mainly on the northernmost studied locality. Furthermore, trans-species alleles were found due to a recent speciation for the genus or convergent evolution. High MHC I and MHC II gene diversity described is extremely advantageous for the long-term survival of the species.

  1. Die Bedeutung der Umkreisquellen für Alexander von Humboldts südamerikanische Reise

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    Wolfgang Griep

    2005-04-01

    Full Text Available Article in German, Abstracts in English, German and Spanish. Contrary to popular opinion, Alexander von Humboldt had little time to make in-depth preparations and acquire thorough knowledge about his most important destination, the Spanish colonies in Central and South America. So he could study most of the travelogues written by his predecessors only after returning home. Humboldt’s belated study of literary sources, combined with the question how he made use of the huge amount of facts he found during many years’ work and at the same time succeeded in being acknowledged as an outstanding researcher, are of great importance for our understanding the significance of background information in Humboldt’s work. As it seems necessary as well as promising to enquire into Humboldt’s sources in detail, this article presents within the “Humboldt Digital Library” research project a preliminary investigation of the different sources Humboldt used for describing a limited section of his South America journey: the Orinoco river system.

  2. Eine Freundschaft, die Jahrzehnte überdauerte! Ein unveröffentlichter Brief Alexander von Humboldts an seinen langjährigen Freund Johann Karl Freiesleben

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    Katja Mönnich

    2013-04-01

    Full Text Available Zusammenfassung Der vorliegende Brief Alexander von Humboldts an seinen Jugendfreund Johann Karl Freiesleben (1774-1846 reiht sich ein in das Vorhaben, unpublizierte Briefe aus Humboldts Jugendzeit der Öffentlichkeit zugänglich zu machen. Editorisch fügt sich der Brief in die von Ilse Jahn und Fritz Gustav Lange herausgegebenen Jugendbriefe Alexander von Humboldts 1787-1799 ein. In diesem Band findet der Brief seinen Platz zwischen zwei Briefen Humboldts an Freiesleben, die er während seines Aufenthaltes in Dresden am 10.07.1797 sowie am 11. oder 18.07.1797 geschrieben hat. Resumen La carta de Alexander von Humboldt a su amigo de juventud Johann Karl Freiesleben (1774-1846 es parte del proyecto de investigación, que presenta cartas del joven Humboldt todavía no publicadas. Editorialmente, la carta fue adaptada a la publicación de la edición Jugendbriefe Alexander von Humboldts 1787-1799, presentada por Ilse Jahn y Fritz Gustav Lange. En este volumen, la carta está ubicada entre dos cartas de Humboldt a Freiesleben, que escribió en Dresde el 10 de julio y el 11 o 18 de julio 1797. Abstract The letter of Alexander von Humboldt to his childhood friend Johann Karl Freiesleben (1774-1846 is part of the project of making unpublished letters from Humboldt’s youth accessible to the public. Editorially, the letter fits in the edition Jugendbriefe Alexander von Humboldts 1787-1799, published by Ilse Jahn and Fritz Gustav Lange. In this volume, the letter is placed between two letters from Humboldt to Freiesleben, which he wrote during his stay in Dresden on 10th of July and on 11th or 18th of July 1797.

  3. Earthquake and Tsunami planning, outreach and awareness in Humboldt County, California

    Science.gov (United States)

    Ozaki, V.; Nicolini, T.; Larkin, D.; Dengler, L.

    2008-12-01

    Humboldt County has the longest coastline in California and is one of the most seismically active areas of the state. It is at risk from earthquakes located on and offshore and from tsunamis generated locally from faults associated with the Cascadia subduction zone (CSZ), other regional fault systems, and from distant sources elsewhere in the Pacific. In 1995 the California Division of Mines and Geology published the first earthquake scenario to include both strong ground shaking effects and a tsunami. As a result of the scenario, the Redwood Coast Tsunami Work Group (RCTWG), an organization of representatives from government agencies, tribes, service groups, academia and the private sector from the three northern coastal California counties, was formed in 1996 to coordinate and promote earthquake and tsunami hazard awareness and mitigation. The RCTWG and its member agencies have sponsored a variety of projects including education/outreach products and programs, tsunami hazard mapping, signage and siren planning, and has sponsored an Earthquake - Tsunami Education Room at the Humboldt County fair for the past eleven years. Three editions of Living on Shaky Ground an earthquake-tsunami preparedness magazine for California's North Coast, have been published since 1993 and a fourth is due to be published in fall 2008. In 2007, Humboldt County was the first region in the country to participate in a tsunami training exercise at FEMA's Emergency Management Institute in Emmitsburg, MD and the first area in California to conduct a full-scale tsunami evacuation drill. The County has conducted numerous multi-agency, multi-discipline coordinated exercises using county-wide tsunami response plan. Two Humboldt County communities were recognized as TsunamiReady by the National Weather Service in 2007. Over 300 tsunami hazard zone signs have been posted in Humboldt County since March 2008. Six assessment surveys from 1993 to 2006 have tracked preparedness actions and personal

  4. Political Essay on the Kingdom of New Spain: Humboldt and the history of Mexico

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    Luiz Estevam O. Fernandes

    2014-08-01

    Full Text Available Abstract In this paper we discuss how Alexander von Humboldt conceived a past to New Spain in his Political Essay on New Spain (1811 and how this text was, in turn, appropriated by the Mexican historiography during the 19th century. In order to do so, we analyze how the Prussian drew from American sources, particularly from the text of the Jesuit Francisco Javier Clavijero, written shortly before. We also study Humboldt’s conceptions of text and of history, highlighting the place of the indigenous in the composition of his reasoning. Finally, we give examples of how the Mexican nationalist historiography read and reinterpreted the Political Essay. Resumen En este artículo se discute cómo Alexander von Humboldt concibió un pasado a la Nueva España en su Ensayo político sobre el reino de la Nueva España (1811 y cómo este texto, a su vez, fue apropiado por la historiografía mexicana durante el siglo XIX. Para ello, se analiza cómo el prusiano se ha valido de fuentes americanas, sobre todo a partir del texto del jesuita Francisco Javier Clavijero, escrito poco antes. También estudiamos las concepciones de texto y de la historia de Humboldt, destacando el lugar de los indígenas en la composición de su razonamiento. Por último, damos ejemplos de cómo la historiografía nacionalista mexicana leyó y reinterpretó el Ensayo político. Résumé Cet article explique comment Alexander von Humboldt a conçu une passé pour la Nouvelle-Espagne dans son Essai politique sur le royaume de la Nouvelle-Espagne (1811 et la façon que ce texte, à son tour, a été approprié par l’historiographie mexicaine au cours du XIXe siècle. Ainsi, nous analysons comment le prussien a utilisé des sources américaines, en particulier le texte du jésuite Francisco Javier Clavijero, écrit un peu de temps avant. Nous étudions également les conceptions de texte et de l’histoire de Humboldt, en soulignant la place des indigènes dans la composition de son

  5. Alexander von Humboldt und Carl Friedrich Gauß – im Roman und in Wirklichkeit

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    Eberhard Knobloch

    2012-12-01

    Full Text Available Zusammenfassung Daniel Kehlmanns Roman „Die Vermessung der Welt“ wird hoch gepriesen und streng kritisiert. Kehlmanns Kritiker lesen seine Satire als eine verfälschte Biographie von Gauss und Humboldt, obwohl der Autor wiederholt selbstironische Bemerkungen eingestreut hat, die sein wahres Ziel offenbaren. Der Aufsatz bemüht sich, Kehlmanns fiktiven Roman angemessen zu beurteilen und einige der wirklichen Aktivitäten und Errungenschaften von Gauss und Humboldt zu charakterisieren, indem Kehlmanns erzählte mit den historischen Tatsachen verglichen werden. Beide Wissenschaftler waren stark am Erdmagnetismus interessiert, was zeitweise zu einigen Spannungen zwischen ihnen führte. Humboldts Messmethoden und seine Überzeugung, dass alles Wechselwirkung ist, waren zwei Seiten derselben Medaille. Nur numerische Elemente konnten helfen, die Gesetze zu finden, die die Natur regieren. Humboldts wissenschaftliche Techniken und Ziele (Methode der Mittelwerte waren gut begründet. Humboldts Reisen und Forschen bildeten eine untrennbare Einheit. Humboldts Naturbegriff schloss beide Möglichkeiten ein, das heißt die natura naturans und die natura naturata, die schaffende und herrschende Natur und die Natur, die von bestimmten Gesetzen beherrscht war. Sein überragendes Interesse an Naturgesetzen gründete auf der Überzeugung, dass sie ewig waren und dass sie die Ordnung und Ewigkeit der Welt garantierten. Résumé Le roman de Daniel Kehlmann „Le mesurage du monde“ est célébré et critiqué fortement en même temps. Les critiques de Kehlmann lisent sa satire comme une biographie détériorée de Gauss et de Humboldt quoique l’auteur ait inséré à maintes reprises des remarques autoironiques qui révèlent sa vraie fin. L’article s’efforce de juger justement le roman fictif de Kehlmann et de caractériser quelques-unes des activités et conquêtes réelles de Gauss et de Humboldt en comparant les faits racontés par Kehlmann avec les

  6. Hallar e inventar a un público. Nuevos proyectos editoriales acerca de la obra de Alexander von Humboldt

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    Ottmar Ette

    2008-10-01

    Full Text Available Article in español, abstracts in englisch, español and german.In Latin America, Alexander von Humboldt was and is known as one of the most famous historic and literary figures; in his own country, though, the acquaintance with his texts has until the 80s been reduced to groups of specialized scholars. Yet, for a couple of years, a growing interest in the works of Humboldt can be noticed, based on numerous new editions, which have been published since. Among others, these are the new edition of the Relation historique (1991, the editions of the „Humboldt Project“ (2004-2006 as part of the „Andere Bibliothek“, as well as current projects on German editions concerning Asie Centrale and the Examen critique.

  7. Jade aus Amerika und weitere Grünsteinobjekte von Alexander von Humboldt aus dem Berliner Mineralienkabinett

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    Renate Nöller

    2002-04-01

    Full Text Available Article in German, Abstracts in English, Spanish and German.Alexander von Humboldt sent samples of minerals from America not only for scientific or economic purposes. We also find carved pieces made out of green stone material known as Jade, that has been culturally very important in Mesoamerica. In Europe these green stone objects have been treated differently. The Jade-Celt and the Sun-Disc - known as “Humboldt-Axt” and “Humboldt-Scheibe” - both lost during the second world war, had gained great interest, whereas a small head-pendant - made out of Jade has been totally forgotten. The samples reflect the understanding of their worth in distinct cultural contexts.

  8. Nachlassgeschichten – Bemerkungen zu Humboldts nachgelassenen Papieren in der Berliner Staatsbibliothek und der Biblioteka Jagiellońska Krakau

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    Dominik Erdmann

    2015-12-01

    Full Text Available Zusammenfassung Der Artikel schildert die Geschichte verschiedener Teile des Manuskriptnachlasses Alexander von Humboldts, die sich heute in der Staatsbibliothek zu Berlin – Preußischer Kulturbesitz (SBB und in der Biblioteka Jagiellońska in Krakau (BJ befinden. Dabei wird insbesondere auf den unterschiedlichen ‚Quellenwert‘ der drei großen Nachlassabteilungen – der amerikanischen Reisetagebücher, der Kollektaneen zum Kosmos (beide SBB und dem sogenannten Nachlass Alexander von Humboldt (BJ – eingegangen. Abstract The article discusses the history of different parts of Alexander von Humboldt’s estate which are kept today in the Berlin State Library (SBB and the Jageillonian Library in Krakow (BJ. The general aim of the article is to show that – due to the specific history of each part of the handed-down papers – the three main sections of the Humboldt estate – the travel-journals from the American voyage, the Collectanea for the Kosmos (both SBB and the so called Nachlass Alexander von Humboldt (BJ – have a very different status as a historical source. Résumé Le présent article cherche à retracer l’histoire des différents fonds de manuscrits issus de la succession d’Alexandre de Humboldt, aujourd’hui reparti entre la Bibliothèque d’État de Berlin (SBB et la Bibliothèque Jagiellonne de Cracovie. Le but général de l’article est de démontrer qu’en raison de leur histoire respective, les trois principaux fonds de la succession – les journaux de voyage américains, les Collectanées du Kosmos (tous deux SBB et le dit Nachlass Alexander von Humboldt (BJ – ont chacun une valeur très distincte comme source historique.

  9. Berglinien im Vergleich. Bemerkungen zu einem klimageografischen Diagramm Alexander von Humboldts

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    Birgit Schneider

    2013-04-01

    Full Text Available Zusammenfassung Der Artikel analysiert aus bildwissenschaftlicher und historischer Perspektive die unveröffentlichte Skizze zu einem Bergdiagramm aus dem handschriftlichen Nachlass Alexander von Humboldts. Das mehrfach beklebte Skizzenblatt stand im Zentrum klimageografischer Fragestellungen nach den Gründen für die weltweit unterschiedlich hohen Schneegrenzen in Gebirgen. Aufgrund des unfertigen, skizzenhaften Charakters des Diagramms lassen sich Fragen über den Forschungskontext des Diagramms, den epistemischen Stellenwert zeichnerischer Praktiken sowie über die heuristische Rolle der Berge und ihrer charakteristischen Profillinien in Humboldts Forschungen stellen. Gezeigt wird, wie das visuelle Denken und das Interesse Humboldts an neuen grafischen Methoden zu einer wichtigen Bedingung wurden, um die holistische Synopsis der Welt als ökologisches System erforschen und darstellen zu können. Abstract The article analyses from a visual studies and historical perspective the unpublished sketch of a mountain profile found among the handwritten papers of Alexander von Humboldt’s estate. The small sheet of sketches, with its pasted additions, was at the heart of climatic-geographic academic enquiry into the reasons for worldwide differences in the levels of mountain snow lines. The unfinished, sketchy nature of the diagramme raises questions about its research context, about the epistemic value of draughtsmanship practice and about the heuristic role of mountains and their characteristic profiles in Humboldt’s research. It becomes evident how Humboldt’s visual logic and his interest in new forms of graphics became important factors in investigation and depiction of the world as an ecological system. Resumen En el artículo se analizan los bocetos sin publicar de perspectivas históricas y de la ciencia de la imagen del diagrama montañoso de las obras póstumas escritas a mano de Alexander von Humboldt. La hoja de bocetos pegada de

  10. Lo público y lo privado en los escritos de Alexander Von Humboldt sobre Cuba

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    Rebok, Sandra

    2004-12-01

    Full Text Available This study seeks to collect the comments and judgements that Humboldt makes about Cuba and evaluate their character. The resulting analysis and interpretation will be undertaken on two different levels: One refers to the information that can be found in his unofficial works, which means the letters Humboldt sent during or shortly after of his visits to Cuba, as well as the diaries he used during his expedition. The other is based on the official works, which include his travel description, his famous Essay on Cuba and his autobiographical text written in 1804. Constrasting these descriptions, we will compare the evaluations of this Prussian traveller elaborated in the moment he visited the island, with the works he wrote 22 years after his return to Europe.

    Este trabajo tiene el objeto de recopilar los comentarios y juicios que hace Humboldt sobre Cuba y valorar su carácter. El análisis e interpretación que resultará de ello se realiza en dos niveles distintos: uno se refiere a las informaciones que se encuentran en escritos no oficiales, es decir, en las cartas que Humboldt envió durante o poco tiempo después de sus visitas a Cuba, y en los diarios que utilizó a lo largo de su expedición. El otro se fundamenta en los escritos oficiales, que comprenden su narración del viaje, el famoso Ensayo sobre Cuba y la memoria autobiográfica escrita en 1804. Mediante el contraste de estas descripciones se pretende comparar las apreciaciones de este viajero prusiano elaboradas en el preciso momento que visita la isla, cotejándolas con las obras que redactó 22 años después de su vuelta a Europa. Este trabajo tiene el objeto de recopilar los comentarios y juicios que hace Humboldt sobre Cuba y valorar su carácter. El análisis e interpretación que resultará de ello se realiza en dos niveles distintos: uno se refiere a las informaciones que se encuentran en escritos no oficiales, es decir, en las cartas que Humboldt envi

  11. Alexander von Humboldt brachte Guano nach Europa - mit ungeahnten globalen Folgen

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    Bärbel Rott

    2016-05-01

    Full Text Available Zusammenfassung Die vorliegende Abhandlung beschäftigt sich mit einem bisher wenig beachteten Aspekt von Humboldts Amerikanischer Reise (1799─1804. Während seine Studien der Pflanzen- und Tierwelt bis heute große Aufmerksamkeit genießen, wird Humboldts Beitrag zu der Entwicklung der modernen Landwirtschaft wenig beachtet. Während seines Aufenthalts in Lima erhielt er Proben von Guano, Vogelmist von den Chincha-Inseln vor der peruanischen Küste. Einige Proben, die er von dieser Reise zurückbrachte, wurden von Wissenschaftlern in Frankreich und Deutschland untersucht. Die Analysenergebnisse zeigten außerordentlich hohe Gehalte an Pflanzennährstoffen, insbesondere Stickstoff und Phosphor. In den folgenden Jahrzehnten wurde Guano zu einem bedeutsamen Düngemittel und Auslöser eines Booms in Europa und Peru. Die Auswirkungen dieser Entwicklung sind bis heute sichtbar und werden hier unter besonderer Beachtung von Phosphor beschrieben. Abstract One aspect of Humboldt’s travel to South America (1799─1804 received little attention. The fascination of his studies of the South American flora and fauna is unbroken to the present day. Yet Humboldt’s contribution to modern agriculture remains almost unnoticed. During his stay in Lima Humboldt received samples of guano, a mixture of bird droppings from the Chincha Islands off the Peruvian coast, which he took to Europe and had analyzed by the most famous chemists in France and Germany. The results showed outstanding fertilizing effects, in particular due to the high content of nitrogen and phosphorus. The ensuing boom starting from the 1840s influenced agriculture in Europe and the economy of Peru seriously. Some aspects of this historical development may give an idea of the ensuing change not only in agriculture. Résumé Il y a un aspect du voyage de Alexander von Humboldt en Amérique du Sud (1799─1804 qui jusqu’à présent a été peu considéré. Ses études de la flore at le da

  12. The evolution of seabirds in the Humboldt Current: new clues from the Pliocene of Central Chile.

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    Martín Chávez Hoffmeister

    Full Text Available BACKGROUND: During the last decade, new Neogene fossil assemblages from South America have revealed important clues about the evolution of seabird faunas in one of the major upwelling systems of the world: the Humboldt Current. However, most of this record comes from arid Northern Chile and Southern Peru and, in consequence, our knowledge of the evolutionary history of seabirds in the temperate transitional zone is negligible. A new Late Pliocene assemblage of fossil birds from the coastal locality of Horcon in Central Chile offers a unique opportunity to fill this gap. PRINCIPAL FINDINGS: Isolated bones of a medium-sized penguin are the most abundant bird remains. Morphological and cladistic analyses reveal that these specimens represent a new species of crested penguin, Eudyptes calauina sp. nov. Eudyptes is a penguin genus that inhabit temperate and subantarctic regions and currently absent in central Chile. Additionally, a partial skeleton of a small species of cormorant and a partial tarsometatarsus of a sooty shearwater have been identified. CONCLUSION/SIGNIFICANCE: The Horcon fossils suggest the existence of a mixed avifauna in central Chile during the Pliocene in concordance with the latitudinal thermal gradient. This resembles the current assemblages from the transitional zone, with the presence of species shared with Northern Chile and Southern Peru and a previously unrecorded penguin currently absent from the Humboldt System but present in the Magellanic region. Comparison of Pliocene seabird diversity across the Pacific coast of South America shows that the Horcon avifauna represents a distinctive assemblage linking the living faunas with the Late Miocene ones. A comparison with the fossil record near the Benguela Current (west coast of southern Africa suggests that the thermic gradient could play an important role in the preservation of a higher diversity of cold/temperate seabirds in the Humboldt Current.

  13. Hydrologically active palaeofluvial and subglacial channel networks beneath Humboldt Glacier, Greenland

    Science.gov (United States)

    Ely, Jeremy; Livingstone, Stephen; Chu, Winnie; Kingslake, Jonathan

    2017-04-01

    Subglacial drainage systems influence both the flow of overlying ice and the evolution of subglacial landscapes. Yet, the persistence, pattern, origin and spatio-temporal evolution of subglacial drainage remains poorly understood. Whilst the beds of former ice sheets record numerous examples of channelized subglacial drainage systems, any influence these may have had upon ice sheet dynamics is difficult to decipher without contemporary analogues. Therefore, in order to understand the fates of past, present and future ice sheets, further study of contemporary subglacial hydraulic systems is required. Here, we present evidence from satellite imagery, digital elevation models and radio-echo sounding data for previously unknown channelized networks beneath Humboldt Glacier, northern Greenland. We find that two major channel networks exist beneath Humboldt Glacier: (i) a dendritic channel network to the north of the catchment, which extends for over >250 km beneath the ice sheet; and (ii) a series of linear channels in the south of the catchment, which are up to 80 km in length, 2.5 km wide and 400 m deep. These two morphologically contrasting systems likely have separate origins. We interpret the dendritic channel network to be of palaeofluvial origin, whilst the linear channels are likely to be subglacially formed tunnel valleys - analogous to those observed on former ice sheet beds. Radio-echo sounding indicates that basal meltwater is actively being routed along both systems. The dichotomy in subglacial drainage system origin corresponds to a division in ice flow regime, with faster flowing ice occurring over the palaeo-fluvial system. We therefore hypothesise that the large-scale bed channelization by subglacial meltwater erosion, which occurs beneath the slower flowing southern portion of Humboldt, results in a long-term reduction in basal water pressures and ice flow velocities.

  14. Über die Quellen der mexikanischen Tafeln der „Ansichten der Kordilleren“ im Nachlass Alexander von Humboldts

    OpenAIRE

    Leitner, Ulrike

    2010-01-01

    Der Vergleich mit Humboldts Tagebüchern bietet Aufschlüsse über die für Humboldt typische Arbeitsweise und die Wege seines Wissenserwerbs. Seine eigenen Beobachtungen während des Aufenthaltes in Mexiko sind ergänzt durch persönliche Kontakte vor Ort, durch Literatur- und Archivstudien in Mexiko und nach der Rückkehr in europäischen Archiven. So hat er beispielsweise die Pyramiden von Teotihuacan nicht besucht, aber die Beschreibung aus einem Brief von Juan José de Oteyza, den er am Real Semin...

  15. Invasive range expansion by the Humboldt squid, Dosidicus gigas, in the eastern North Pacific.

    Science.gov (United States)

    Zeidberg, Louis D; Robison, Bruce H

    2007-07-31

    A unique 16-year time series of deep video surveys in Monterey Bay reveals that the Humboldt squid, Dosidicus gigas, has substantially expanded its perennial geographic range in the eastern North Pacific by invading the waters off central California. This sustained range expansion coincides with changes in climate-linked oceanographic conditions and a reduction in competing top predators. It is also coincident with a decline in the abundance of Pacific hake, the most important commercial groundfish species off western North America. Recognizing the interactive effects of multiple changes in the environment is an issue of growing concern in ocean conservation and sustainability research.

  16. The Blaschka models of the Humboldt University of Berlin and their historical context.

    Science.gov (United States)

    Hackethal, Sabine

    2008-03-01

    The Humboldt University of Berlin has a collection of Blaschka models which came from the teaching collection of the Zoological Institute and the former exhibition of the Museum of Natural History. Besides those from the Blaschkas other models from model makers like Adolf and Friedrich Ziegler in Freiburg, Rudolf Weisker and Paul Loth in Leipzig, Paul Osterloh, Marcus Sommer, and others were used for teaching purposes in the Zoological Institute. They were created in close cooperation between scientists, craftsmen, and artists and tell us about anatomical and zoological research of their time. The origin, history and application of different types of models are explained and compared.

  17. Humboldteanización del mundo occidental? La importancia del viaje de Humboldt para Europa y América Latina

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    Michael Zeuske

    2003-04-01

    Full Text Available Article in Spanish, Abstracts in English and German.The article “Humboldization of the Western world? The importance of the travel of Humboldt for Europa and for Latin America”, treats the empirical Prussian Scientist as a globalist (Universalgelehrten, in accordance to the conceptualization made by Ottmar Ette. Humboldt was one, if not the most important founder of Western moderne. As opposed to the well-known founders of the moderne (Descartes, Kant, Buffon, Schiller, Hegel, Marx ... etc., Alexander von Humboldt was an empirical and a global thinker. He did this in transcultural manners, sometimes already in intercultural manners. But most of times, his point of view is based in the European tradition of roman-classicist and aesthetic thinking. The article tries to demonstrate three types of knowledge in Humboldt and also, that the humboldtian universalism has important intercultural bases in the comunication with American scientists and in the American empiricism (“local knowledge”. One importance of such a conceptualization of Humboldt is shown – in negation – in the actual debates over diaspora and race in the Atlantic world (“Black Atlantic”. Humboldt knowledge of American slaveries and his absolute condemnation of slavery in his “Island of Cuba” is not present in these debates. In the second part the article demonstrates possibles manners of reading the diaries of Humboldt, by constructing “essais imaginaires” about colonialism, slavery, Peru, the Pacific ocean etc.

  18. Material properties of Pacific hake, Humboldt squid, and two species of myctophids in the California Current.

    Science.gov (United States)

    Becker, Kaylyn N; Warren, Joseph D

    2015-05-01

    Material properties of the flesh from three fish species (Merluccius productus, Symbolophorus californiensis, and Diaphus theta), and several body parts of the Humboldt squid (Dosidicus gigas) collected from the California Current ecosystem were measured. The density contrast relative to seawater varied within and among taxa for fish flesh (0.9919-1.036), squid soft body parts (mantle, arms, tentacle, braincase, eyes; 1.009-1.057), and squid hard body parts (beak and pen; 1.085-1.459). Effects of animal length and environmental conditions on nekton density contrast were investigated. The sound speed contrast relative to seawater varied within and among taxa for fish flesh (0.986-1.027) and Humboldt squid mantle and braincase (0.937-1.028). Material properties in this study are similar to values from previous studies on species with similar life histories. In general, the sound speed and density of soft body parts of fish and squid were 1%-3% and 1%-6%, respectively, greater than the surrounding seawater. Hard parts of the squid were significantly more dense (6%-46%) than seawater. The material properties reported here can be used to improve target strength estimates from acoustic scattering models, which could increase the accuracy of biomass estimates from acoustic surveys for these nekton.

  19. Alexander von Humboldt und seine geognostischen Studien in Göttingen

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    Bernd Kölbel

    2006-04-01

    Full Text Available Article in German, Abstracts in English and German.Even before he went to Freiberg (Saxony to study with Abraham Gottlob Werner, Alexander von Humboldt had done research into geognosy and the science of salt making. The results were published in the book “Mineralogische Beobachtungen über einige Basalte am Rhein”, and in „Versuch über einige physikalische und chemische Grundsätze der Salzwerkskunde“ (1792. Humboldt’s first teachers in geognosy, J. F. Blumenbach and H. F. Link had an important impact on these early studies. Until 1795, 31% of Humboldt’s scientific work consisted of research into these fields. This paper argues that, due to Humboldt’s comprehensive knowledge of the literature on geognosy, the references to this field in Steven Jan van Geuns’s journal of a common trip along the river Rhine (1789 were directly influenced by Humboldt. Thus van Geuns’s diary contains Humboldt’s first statements on volcanism, the geognosy of basalts, and references to salt making.

  20. Virtuti et merito. El reconocimiento oficial de Alexander von Humboldt en España.

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    Sandra Rebok

    2004-04-01

    Full Text Available Article in Spanish, Abstracts in English, Spanish and GermanThis article studies the recognition of Humboldt and his works at a late moment of his life, during the reign of Isabel II (1844-68, when in 1847 he received in Potsdam the Gran Cruz of the Real y Distinguida Órden Española de Carlos III, founded by Carlos III in 1771 and given since then to selected person for special merits related to the Court. We also publish the unknown letter that Humboldt sent to the prince Sotomayor to express his gratefulness for the decoration awarded to him (9th of August 1848. In this study are also included his prior appointments as correspondent member of the Real Jardín Botánico, the Real Academia Médica Matritense as well as the Real Academia de Ciencias, whose president Antonio Remón Zarco del Valle seems to have a significant importance related to the political recognition of the reign of Isabel II by the central European governments.

  1. Alexander von Humboldt und Carl Friedrich Gauß als Wegbereiter der neuen Disziplin Erdmagnetismus

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    Karin Reich

    2011-03-01

    Full Text Available AbstractThough Alexander von Humboldt was motivated for the first time to deal with earthmagnetism during his stay in Freiberg, it was in France that he really became a specialist in this respect. During most of his journeys he made earthmagnetic measurements. His collaboration with Arago was of great importance, it was in Paris that the first magnetic observatory was built. Humboldt rendered outstanding services to the investigation of earth magnetism by two major achievements: 1. He emphasized intensity measurements and 2. he put forward the law that the magnetic intensity is increasing from the magnetic equator toward the magnetic poles. At least since 1803 Carl Friedrich Gauss was interested in earthmagnetism and especially in Humboldt’s early published data. That Wilhelm Weber became professor of physics at the University of Göttingen in 1831 was a turning point for Gauss. In 1833 Göttingen was the centre of investigating earthmagnetism, a new era began which lasted only until 1843. Gauss’ main contributions were more or less theoretical, in 1832/3 he transformed Humboldt’s relative intensity measurements into absolute ones which were independent of the instrument’s needle. A new epoch began with Gauss’ publication „Allgemeine Theorie des Erdmagnetismus” (1839. The main point was the newly defined notion of „potential“. Gauss was the first to present the surface of the earth with equipotential lines. ZusammenfassungAlexander von Humboldt hatte sich bereits in Freiberg mit dem Erdmagnetismus beschäftigt; jedoch erst in Frankreich lernte er die entsprechenden Beobachtungsmethoden kennen. Auf allen seinen Reisen machte er erdmagnetische Messungen. Seine Zusammenarbeit mit Arago in Paris war besonders fruchtbar, hier wurde das erste magnetische Observatorium gebaut. Humboldt beschäftigte sich vor allem mit Intensitätsmessungen; sein wichtigster Beitrag war die Feststellung, dass die magnetische Intensität vom

  2. Alexander von Humboldt: Wissenschaft im Feld Transareale Wissenschaftsfelder in den Tropen

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    Ottmar Ette

    2011-10-01

    Full Text Available ZusammenfassungAlexander von Humboldt verstand sich zwar sicher nicht als Direktor eines Museums, war aber sehr wohl der Welt der Museen, Bibliotheken und Archive nicht nur als Besucher und Leser, sondern auch als Sammler und Forscher verpflichtet. Durch seine Forschungsreisen nach Amerika und Asien vermehrte er im Verlauf eines langen Gelehrtenlebens viele Sammlungen durch eigene Sammeltätigkeit vor Ort. Seine Feldforschung blieb dabei nicht auf naturwissenschaftliche Aspekte begrenzt, sondern bezog ganz selbstverständlich auch die verschiedenartigsten kulturwissenschaftlichen Forschungsgegenstände mitein. Diese transdisziplinär agierende Praxis im Feld lässt sich zugleich als eine transareale, einzelne Areas übergreifende und damit im Sinne von TransArea Studies aus den Beziehungen, Zirkulationen und Wechselwirkungen jenseits des bloß Territorialen sich speisende Wissenschaftskonzeption begreifen. So lässt sich in seiner Auseinandersetzung mit der amerikanischen Tropenwelt eine doppelte transareale Relationalität erkennen, die einerseits intern die Tropenwelt unterschiedlicher Kontinente miteinander verbindet, andererseits aber extern die Tropen insbesondere mit den gemäßigten Zonen in Relation setzt, um dadurch erst globale Zusammenhänge - einschließlich der sich verändernden Schneegrenzen oder der Wanderungsbewegungen der Pflanzenformen, für die sich die mobile Wissenschaft Humboldts in besonderem Maße interessierte - skizzieren und erläutern zu können. Die Tropen sind für ihn die Zone höchster Mannigfaltigkeit und Vielverbundenheit - oder um es mit heutigen Begriffen zum Ausdruck zu bringen: die TransArea par excellence.AbstractAlthough Alexander von Humboldt certainly perceived himself not as director of a museum, he was commited to the world of museums, libraries, and archives, not only as a visitor and reader, but also as a collector and researcher. Through his travels to America and Asia and in the course of a long

  3. „Vater einer großen Nachkommenschaft von Forschungsreisenden ...“ Ehrungen Alexander von Humboldts im Jahre 1869

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    Ilse Jahn

    2004-04-01

    Full Text Available Article in German, Abstracts in English and GermanIn 1869 the “Naturwissenschaftlicher Verein” was founded in Magdeburg (Saxony Anhalt. That was the time when the scientific world celebrated Alexander von Humboldt’s 100th birthday. In this context, Humboldt’s achievements were remembered during the founding ceremony of that society. The paper which was read in September 2003 on a meeting of this organisation, focuses on three famous naturalists who celebrated Humboldt because they owed him much help in their own professional careers. The botanist Matthias Jacob Schleiden gave a memorial speech in 1869 in Dresden. The physiologist and pioneer of electro-biology Emil du Bois-Reymond honoured his mentor A. v. Humboldt on the occasion of the dedication of the statues of Wilhelm and Alexander in 1883 in Berlin. Charles Darwin expressed his gratitude to Humboldt by sending him in 1839 the report of his travels and received an interesting reply. These three scholars represented a new epoch in the development of the natural sciences. The paper includes a recently re-discovered letter from Humboldt to Schleiden, dated April 13, 1842.

  4. [Considerations on the concepts of nature, space, and morphology in Alexander von Humboldt and on the genesis of modern physical geography].

    Science.gov (United States)

    Vitte, Antonio Carlos; Silveira, Roberison Wittgenstein Dias da

    2010-01-01

    The article discusses how Alexander von Humboldt developed the concepts of nature, space, and morphology in his works and impacted the shaping of modern physical geography. Influenced by Kant's ideas in Critique of judgment and also by the writings of Goethe and Schelling, Humboldt devised a new interpretation and representation of nature on Earth's surface, wherein the concept of space is essential to explaining natural phenomena. Modern physical geography is grounded in a complex interweaving of aesthetic and instrumental influences fashioned by Humboldt, with the principle of connection playing an important role in the artistic and scientific development of the notion of a geographic landscape.

  5. El Ensayo PolÌtico de Humboldt sobre Cuba: presencia y ausencia de pensamientos habaneros sobre esclavitud y ciencia (1801-1826

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    Rolando E. Misas Jimènez

    2009-05-01

    Full Text Available Article in Spanish, Abstracts in English and Spanish.The Political Essay on the island of Cuba by Humboldt is an important study on the thought of the landholders and colonial functionaries from Havana, who were his principal collaborators during the period 1801-1826.According to his ideas of human progress, Humboldt criticized the influence of the thought, based on the exploitation of slave labour, in the scientific, social and economical problems of the island. Therefore, Humboldt was worried about the political aspirations of the landholders. However, he almost didn't address the reformist program carried out by Intendant Alejandro RamÌrez. On the other hand, Humboldt ignored the progress thought of a group of professors and students from San Carlos's College Seminary in Havana. His first contacts with this thought happened in Europe after his Essay having been published in 1826.

  6. Combined climate- and prey-mediated range expansion of Humboldt squid (Dosidicus gigas), a large marine predator in the California Current System.

    Science.gov (United States)

    Stewart, Julia S; Hazen, Elliott L; Bograd, Steven J; Byrnes, Jarrett E K; Foley, David G; Gilly, William F; Robison, Bruce H; Field, John C

    2014-06-01

    Climate-driven range shifts are ongoing in pelagic marine environments, and ecosystems must respond to combined effects of altered species distributions and environmental drivers. Hypoxic oxygen minimum zones (OMZs) in midwater environments are shoaling globally; this can affect distributions of species both geographically and vertically along with predator-prey dynamics. Humboldt (jumbo) squid (Dosidicus gigas) are highly migratory predators adapted to hypoxic conditions that may be deleterious to their competitors and predators. Consequently, OMZ shoaling may preferentially facilitate foraging opportunities for Humboldt squid. With two separate modeling approaches using unique, long-term data based on in situ observations of predator, prey, and environmental variables, our analyses suggest that Humboldt squid are indirectly affected by OMZ shoaling through effects on a primary food source, myctophid fishes. Our results suggest that this indirect linkage between hypoxia and foraging is an important driver of the ongoing range expansion of Humboldt squid in the northeastern Pacific Ocean.

  7. Temperature profile data collected from the ALE ANDRO DE HUMBOLDT from 19 September 1971 to 26 September 1971 (NODC Accession 7500942)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile data were collected using bottle casts from the ALE ANDRO DE HUMBOLDT in the coastal waters of California from 19 September 1971 to 26 September...

  8. Drag Reduction in a Swimming Humboldt Penguin, Spheniscus Humboldti, when the Boundary Layer is Turbulent

    Institute of Scientific and Technical Information of China (English)

    Alex R. Parfitt; Julian F.V. Vincent

    2005-01-01

    An area of protruding feathers found around the beak of many penguin species is thought to induce a turbulent boundary layer whilst swimming. Hydrodynamic tests on a model Humboldt penguin, Spheniscus humboldti, suggest that induced turbulence causes a significant reduction in boundary layer height, flow separation, and an average of 31% reduction in drag (1.0 m/s to 4.5 m/s). Visualisation of surface flow showed it to follow the body profile, over the feet and tail, before separating. Movement of the feet in swimming penguins correlates with steering of the bird. Induced turbulence may therefore further increase swimming efficiency by reducing the amount of foot movement required to direct the swimming bird.

  9. Alexander von Humboldt y la génesis de la geografía física moderna

    OpenAIRE

    Antonio Carlos Vitte; Roberison Wittgenstein Dias da Silveira

    2011-01-01

    El artículo discute la formación de los conceptos de la naturaleza, espacio y morfología en la obra de Alexander von Humboldt y sus impactos en la constitución de la geografía física moderna. Influido por las reflexiones de Kant en la Crítica del Juicio, por los trabajos de Goethe y de Schelling, Humboldt desarrollará una nueva interpretación y representación de la naturaleza en la superficie terrestre, donde el concepto de espacialidad será fundamental para la explicación de los fenómenos de...

  10. Alexander von Humboldt y la génesis de la geografía física moderna

    Directory of Open Access Journals (Sweden)

    Antonio Carlos Vitte

    2010-10-01

    Full Text Available Article in Spanish. AbstractThis article discusses the genesis of modern physical geography since the formation of the concepts of nature, space and morphology in the writings of Alexander von Humboldt. Influenced by the reflections of Kant in the “Critique of Judgment”, the writings of Goethe and Schelling, Humboldt has developed a new interpretation and representation of nature in the earth’s surface that turned the concept of space out to be crucial to the explanation of the phenomena of nature. A complex starting point of influences as such aesthetics or self developed instrumentals has structured modern Physical Geography through a principle of connection between artistic and scientific invention in the geographic concept of landscape.

  11. Alexander von Humboldt: galvanism, animal electricity, and self-experimentation part 2: the electric eel, animal electricity, and later years.

    Science.gov (United States)

    Finger, Stanley; Piccolino, Marco; Stahnisch, Frank W

    2013-01-01

    After extensive experimentation during the 1790s, Alexander von Humboldt remained skeptical about "animal electricity" (and metallic electricity), writing instead about an ill-defined galvanic force. With his worldview and wishing to learn more, he studied electric eels in South America just as the new century began, again using his body as a scientific instrument in many of his experiments. As had been the case in the past and for many of the same reasons, some of his findings with the electric eel (and soon after, Italian torpedoes) seemed to argue against biological electricity. But he no longer used galvanic terminology when describing his electric fish experiments. The fact that he now wrote about animal electricity rather than a different "galvanic" force owed much to Alessandro Volta, who had come forth with his "pile" (battery) for multipling the physical and perceptable effects of otherwise weak electricity in 1800, while Humboldt was deep in South America. Humboldt probably read about and saw voltaic batteries in the United States in 1804, but the time he spent with Volta in 1805 was probably more significant in his conversion from a galvanic to an electrical framework for understanding nerve and muscle physiology. Although he did not continue his animal electricity research program after this time, Humboldt retained his worldview of a unified nature and continued to believe in intrinsic animal electricity. He also served as a patron to some of the most important figures in the new field of electrophysiology (e.g., Hermann Helmholtz and Emil du Bois-Reymond), helping to take the research that he had participated in to the next level.

  12. Assessing Local People's Knowledge of the Endangered Cuban Solenodon (Solenodon cubanus) in Alejandro de Humboldt National Park, Cuba

    OpenAIRE

    Echenique-Díaz, Lázaro M.; OHDACHI, Satoshi; Kita, Masaki; Begué-Quiala, Gerardo; Páez, Rafael Borroto; Labañino, Jorge L. Delgado; Díez, Jorgelino Gámez; HOSON, Osamu; SAITO, Chiemi

    2014-01-01

    Assessing local people's knowledge of endangered species is important not only for the planning and implementation of environmental education programs, but also to address community-based conservation issues and guarantee an effective engagement of local residents in conservation efforts. A questionnaire-based study conducted in Alejandro de Humboldt National Park assessed local people’s knowledge of the endangered Cuban Solenodon (Solenodon cubanus). From this it was found that although chil...

  13. The Landcover Impact on the Aspect/Slope Accuracy Dependence of the SRTM-1 Elevation Data for the Humboldt Range

    OpenAIRE

    Miliaresis, George C.

    2008-01-01

    The U.S. National Landcover Dataset (NLCD) and the U.S National Elevation Dataset (NED) (bare earth elevations) were used in an attempt to assess to what extent the directional and slope dependency of the Shuttle Radar Topography Mission (SRTM) finished digital elevation model is affected by landcover. Four landcover classes: forest, shrubs, grass and snow cover, were included in the study area (Humboldt Range in NW portion of Nevada, USA). Statistics, rose diagrams, and frequency distributio...

  14. Der Aachener Kongreß und das Scheitern der indischen Reisepläne Alexander von Humboldts

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    Kurt-R. Biermann

    2001-04-01

    Full Text Available Article in German, Abstracts in English and Spanish.This article argues that a "Memoir about the Spanish Colonies in South America" allegedly written by Alexander von Humboldt in 1818 for the Holy Alliance’s Conference at Aix-la-Chapelle in reality never existed and therefore could not serve as an impediment to Humboldt’s effort to visit India.

  15. Analysis of the sequence variations in the Mhc DRB1-like gene of the endangered Humboldt penguin (Spheniscus humboldti).

    Science.gov (United States)

    Kikkawa, Eri F; Tsuda, Tomi T; Naruse, Taeko K; Sumiyama, Daisuke; Fukuda, Michio; Kurita, Masanori; Murata, Koichi; Wilson, Rory P; LeMaho, Yvon; Tsuda, Michio; Kulski, Jerzy K; Inoko, Hidetoshi

    2005-04-01

    The Major Histocompatibility Complex (Mhc) genomic region of many vertebrates is known to contain at least one highly polymorphic class II gene that is homologous in sequence to one or other of the human Mhc DRB1 class II genes. The diversity of the avian Mhc class II gene sequences have been extensively studied in chickens, quails, and some songbirds, but have been largely ignored in the oceanic birds, including the flightless penguins. We have previously reported that several penguin species have a high degree of polymorphism on exon 2 of the Mhc class II DRB1-like gene. In this study, we present for the first time the complete nucleotide sequences of exon 2, intron 2, and exon 3 of the DRB1-like gene of 20 Humboldt penguins, a species that is presently vulnerable to the dangers of extinction. The Humboldt DRB1-like nucleotide and amino acid sequences reveal at least eight unique alleles. Phylogenetic analysis of all the available avian DRB-like sequences showed that, of five penguin species and nine other bird species, the sequences of the Humboldt penguins grouped most closely to the Little penguin and the mallard, respectively. The present analysis confirms that the sequence variations of the Mhc class II gene, DRB1, are useful for discriminating among individuals within the same penguin population as well those within different penguin population groups and species.

  16. The state of pediatric asthma in Chicago's Humboldt Park: a community-based study in two local elementary schools

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    Smith Bridget

    2010-06-01

    Full Text Available Abstract Background Pediatric asthma is a serious public health problem in Chicago and has been designated a high priority concern by residents of Chicago's Humboldt Park, a diverse community area with a large number of Puerto Rican, African American, and Mexican American families. Methods In May 2009, following the principles of community-based participatory research, a cross-sectional asthma screening survey was administered to adult caregivers of children attending two Humboldt Park elementary schools. Data were analyzed to determine the prevalence of diagnosed and probable asthma as well as the degree of asthma control among affected children; associations between asthma outcomes and mutable triggers were evaluated. Results Surveys from 494 children were evaluated. Physician-diagnosed asthma was reported for 24.9% of children and probable asthma identified in an additional 16.2% of children. Asthma was poorly or moderately controlled in 60.0% of diagnosed children. Smoking occurred inside 25.0% of households and 75.0% of caregivers reported idling of vehicles in their community. Report of general stress among caregivers, stress due to community crime, and/or an inability to cope with everyday life were significantly and positively associated with poor asthma morbidity and control among affected children. Conclusions Despite high prevalence rates and poor asthma morbidity and control in Humboldt Park, the association of these measures with mutable variables is promising. A community-based asthma intervention to address the issues identified in this study is needed to affect positive change.

  17. Age, maturation, and population structure of the Humboldt squid Dosidicus gigas off the Peruvian Exclusive Economic Zones

    Institute of Scientific and Technical Information of China (English)

    LIU Bilin; CHEN Xinjun; CHEN Yong; TIAN Siquan; LI Jianhua; FANG Zhou; YANG Mingxia

    2013-01-01

    Age,maturation and population structure of the Humboldt squid Dosidicus gigas were studied based on random sampling of the Chinese jigging fishery off the Peruvian Exclusive Economic Zones (EEZ) during 2008-2010.Estimated ages ranged from 144 to 633 days,confirming that the squid is a short-lived species with longevity no longer than 2 years.Occurrence of mature females and hatching in each month indicated that Humboldt squid spawned year-round.Back-calculated hatching dates for the samples were from January 22nd,2008 to April 22nd,2010 with a peak between January and March.Two size-based and two hatching date-based populations could be defined from mantle length (ML) at maturity and back-calculated hatching dates,respectively.Females matured at a larger size than males,and there was a significant difference in ML at maturity between the two hatching groups (P<0.05).The waters adjacent to 11°S off the Peruvian EEZ may be a potential spawning ground.This study shows the complexity of the population structure and large variability in key life history parameters in the Humboldt squid off the Peruvian EEZ,which should be considered in the assessment and management of this important resource.

  18. Age, maturation, and population structure of the Humboldt squid Dosidicus gigas off the Peruvian Exclusive Economic Zones

    Science.gov (United States)

    Liu, Bilin; Chen, Xinjun; Chen, Yong; Tian, Siquan; Li, Jianhua; Fang, Zhou; Yang, Mingxia

    2013-01-01

    Age, maturation and population structure of the Humboldt squid Dosidicus gigas were studied based on random sampling of the Chinese jigging fishery off the Peruvian Exclusive Economic Zones (EEZ) during 2008-2010. Estimated ages ranged from 144 to 633 days, confirming that the squid is a short-lived species with longevity no longer than 2 years. Occurrence of mature females and hatching in each month indicated that Humboldt squid spawned year-round. Back-calculated hatching dates for the samples were from January 22nd, 2008 to April 22nd, 2010 with a peak between January and March. Two size-based and two hatching date-based populations could be defined from mantle length (ML) at maturity and back-calculated hatching dates, respectively. Females matured at a larger size than males, and there was a significant difference in ML at maturity between the two hatching groups ( P <0.05). The waters adjacent to 11°S off the Peruvian EEZ may be a potential spawning ground. This study shows the complexity of the population structure and large variability in key life history parameters in the Humboldt squid off the Peruvian EEZ, which should be considered in the assessment and management of this important resource.

  19. Naturaleza y cultura: perspectivas científico-vitales de la ciencia de Humboldt

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    Ottmar Ette

    2016-05-01

    Full Text Available Resumen El presente trabajo gira en torno al inexpugnable vínculo entre naturaleza y cultura y la 'no naturalidad' de la primera, producto de las milenarias intervenciones del hombre, subsumido bajo el término del 'antropoceno'. Los filósofos franceses Bruno Latour y Philippe Descola supieron destacar, aunque por caminos diferentes, la importancia de este nexo para asegurar la supervivencia del hombre; Bruno Latour centra sus reflexiones en la política de la naturaleza y  Philippe Descola destaca el carácter ecológico de la naturaleza y la cultura. Sin embargo, ambos dejan de lado las literaturas del mundo y su capacidad de atesorar los diversos diseños del saber convivir entre hombre y naturaleza y las nociones de sustentabilidad. Descuella además la inspiración que Descola encuentra en la figura del gran erudito Alexander von Humboldt, quien en el siglo XIX ya daba fe de la relación inextricable entre naturaleza y cultura en innumerables testimonios, entre otros, el Chimborazo que, como cuadro global es representativo para entender que la naturaleza desde siempre ha sido cultura y la cultura es inimaginble sin la naturaleza. Zusammenfassung Im Vordergrund der vorliegenden Arbeit steht die unauflösbare Beziehung von Natur und Kultur, sowie die Nicht-Natürlichkeit derselben, Produkt der jahrhundertealten Eingriffe des Menschen, subsummiert unter dem Begriff des Anthropozän. Die französischen Philosophen  Bruno Latour und Philippe Descola hoben, wenn auch auf unterschiedlichen Wegen, die Bedeutung dieses Zusammenhanges für die Gegenwart und Zukunft der Menschheit hervor; Bruno Latour konzentrier sich auf die Politik der Natur, Philippe Descola unterstreicht den ökologischen Charakter von Natur und Kultur. Beide lassen jedoch die Literaturen der Welt und ihre Fähigkeiten, die unterschiedlichen Entwürfe des Zusammenlebens und die Grundlagen der Nachhaltigkeit zu speichern, außen vor. Es wird auch auf Descolas Inspiration in der

  20. COLOMBIAN FROZEN BIODIVERSITY: 16 YEARS OF THE TISSUE COLLECTION OF THE HUMBOLDT INSTITUTE

    Directory of Open Access Journals (Sweden)

    Enrique ARBELÁEZ-CORTÉS

    2015-01-01

    Full Text Available Las colecciones de tejidos son fuentes fundamentales de información molecular para el conocimiento de la biodiversidad, y son particularmente desafiantes si están enfocadas en países megadiversos. En 1998 el Instituto Humboldt (Instituto de Investigación de Recursos Biológicos Alexander von Humboldt inició una colección de tejidos de la biodiversidad colombiana (IAvH-CT. El objetivo de este trabajo es presentar un diagnóstico y una perspectiva histórica de esta colección, mediante la compilación de información y de experiencias sobre su manejo y organizando y curando la información de cada muestra catalogada. Después de 16 años IAvHCT resguarda 16,469 muestras, que representan alrededor de 2530 especies de 1289 géneros y 323 familias de la biodiversidad colombiana. El número de muestras está sesgado hacia plantas (44 % y aves (40 %, pero también incluyen otros taxones animales. Geográficamente, IAvH-CT incluye muestras de todos los departamentos colombianos, pero hay una gran variación en su cobertura. Al ser comparada con otras colecciones internacionales se encuentra que IAvH-CT cumple varios estándares de almacenamiento de muestras y de manejo de datos, pero su gran debilidad es que varios tejidos aparentemente carecen de un ejemplar de referencia. Varios tejidos almacenados en IAvH-CT han sido incluidos en al menos 48 estudios publicados en varias revistas científicas. IAvH-CT está implementando estrategias para mejorar la curaduría, llenar vacíos taxonómicos y explorar el potencial de sus muestras para entender la impresionante biota colombiana en un marco de investigación en cooperación con otras instituciones.

  1. La influencia de Alejandro de Humboldt en dos artistas venezolanos del siglo XIX

    Directory of Open Access Journals (Sweden)

    Esteva-Grillet, Roldán

    2009-12-01

    Full Text Available Throughout century XIX in the Latin American painting several new subjects are introduced, among them the landscape, no longer more like scene of patriotic, religious or costumbristas scenes. The model propose by Alexander de Humboldt in its book Vue de cordillères et monuments des peuples indigènes de l’Amérique, of 1810, for the scientific study of the landscape, is going to be followed not only by artists German, but by nationals like Car it to me the Fernandez Páez and Ramon Bolet Peraza who will approach modestly in their work to the watercolor and the weather. First in its character of illustrator of the geographic work of Agustín Codazzi, as much in Venezuela as in Colombia, the second when taking care of requests of foreign retailers but also by their participation in scientific expeditions. The study of these two nineteenth-century, devoid artists of a properly academic formation, does not open a possibility of valuation for other artists who did not get to compete in European Halls and were either in its time very solicited like retratists.A lo largo del siglo XIX en la pintura latinoamericana se introducen varios temas nuevos, entre ellos el paisaje, ya no más como escenario de escenas patrióticas, religiosas o costumbristas. El modelo propuesto por Alejandro de Humboldt en su libro Vue des cordillères et monuments des peuples indigènes de l’Amérique, de 1810, para el estudio científico del paisaje, va a ser seguido no sólo por artistas alemanes, sino por nacionales como Carmelo Fernández Páez y Ramón Bolet Peraza quienes abordarán modestamente en su obra a la acuarela y al temple. El primero en su carácter de ilustrador de la labor geográfica de Agustín Codazzi, tanto en Venezuela como en Colombia, el segundo al atender solicitudes de comerciantes extranjeros pero también por su participación en expediciones científicas. El estudio de estos dos artistas decimonónicos, carentes de una formación propiamente

  2. Data on Streamflow and Quality of Water and Bottom Sediment in and near Humboldt Wildlife Management Area, Churchill and Pershing Counties, Nevada, 1998-2000

    Science.gov (United States)

    Paul, Angela P.; Thodal, Carl E.

    2003-01-01

    This study was initiated to expand upon previous findings that indicated concentrations of dissolved solids, arsenic, boron, mercury, molybdenum, selenium, and uranium were either above geochemical background concentrations or were approaching or exceeding ecological criteria in the lower Humboldt River system. Data were collected from May 1998 to September 2000 to further characterize streamflow and surface-water and bottom-sediment quality in the lower Humboldt River, selected agricultural drains, Upper Humboldt Lake, and Lower Humboldt Drain (ephemeral outflow from Humboldt Sink). During this study, flow in the lower Humboldt River was either at or above average. Flows in Army and Toulon Drains generally were higher than reported in previous investigations. An unnamed agricultural drain contributed a small amount to the flow measured in Army Drain. In general, measured concentrations of sodium, chloride, dissolved solids, arsenic, boron, molybdenum, and uranium were higher in water from agricultural drains than in Humboldt River water during this study. Mercury concentrations in water samples collected during the study period typically were below the laboratory reporting level. However, low-level mercury analyses showed that samples collected in August 1999 from Army Drain had higher mercury concentrations than those collected from the river or Toulon Drain or the Lower Humboldt Drain. Ecological criteria and effect concentrations for sodium, chloride, dissolved solids, arsenic, boron, mercury, and molybdenum were exceeded in some water samples collected as part of this study. Although water samples from the agricultural drains typically contained higher concentrations of sodium, chloride, dissolved solids, arsenic, boron, and uranium, greater instantaneous loads of these constituents were carried in the river near Lovelock than in agricultural drains during periods of high flow or non-irrigation. During this study, the high flows in the lower Humboldt River

  3. Determination of Tear Production and Intraocular Pressure With Rebound Tonometry in Wild Humboldt Penguins ( Spheniscus humboldti ).

    Science.gov (United States)

    Sheldon, Julie D; Adkesson, Michael J; Allender, Matthew C; Jankowski, Gwen; Langan, Jennifer; Cardeña, Marco; Cárdenas-Alayza, Susana

    2017-03-01

    Tear production and intraocular pressures (IOPs) were determined in 38 and 102 wild Humboldt penguins (Spheniscus humboldti), respectively, from the Punta San Juan Marine Protected Area in Ica, Peru. Tear production was measured by Schirmer tear test, and IOP was measured with a TonoVet rebound tonometer. Adult (n = 90) and chick (n = 12) penguins were sampled from 2 different beaches (north and south facing) during 2 sampling years (2010 and 2011). Results showed a mean ± SD (range) of 9 ± 4 (2-20) mm/min for tear production and 28 ± 9 (3-49) mm Hg for IOP. Tear production in penguins differed between beach and sex, whereas IOP differed between age, year, and beach. The IOPs were negatively correlated with packed cell volume. Tear production and IOP values had greater variation in this population than it has in other avian species. Previous investigations of IOP and tear production in Spheniscus species were conducted with birds housed under professional care in artificial marine and freshwater environments. This is the first study, to our knowledge, investigating tear production and IOP in wild penguins and establishes valuable reference intervals for this species.

  4. Health evaluation of free-ranging Humboldt penguins (Spheniscus humboldti) in Peru.

    Science.gov (United States)

    Smith, Kristine M; Karesh, William B; Majluf, Patricia; Paredes, Rosana; Zavalaga, Carlos; Reul, Almira Hoogesteijn; Stetter, Mark; Braselton, W Emmett; Puche, Helena; Cook, Robert A

    2008-03-01

    As part of ongoing ecological studies of Humboldt penguins (Spheniscus humboldti) at Punta San Juan, Ica Department, Peru, health surveys were conducted in November 1992, 1993, and 1994. In the three surveys, 98 birds in total were handled for examination, and blood was collected for laboratory analysis from 90 of these birds. All birds seemed to be in good condition. Body weights of females were significantly lower in 1994 than in the other years. Fleas (Parapsyllus humboldti) and ticks (Ornithodoros amblus) were found on the penguins and in their nests. Females had significantly higher plasma calcium and phosphorus levels, and they had lower weights than males. No other differences were found between the sexes. Hematology, plasma chemistries, and plasma mineral levels varied between years. Positive antibody titers for Chlamydophila psittaci (62%), avian adenovirus (7%; 1994 only), paramyxovirus-2 (7%; 1993 only), and Salmonella Pullorum (7%) were found. Plasma chemistry and mineral levels differed between individuals testing positive vs. negative on serologic tests for avian adenovirus and Salmonella Pullorum. Serologic tests for antibodies to avian influenza A virus, avian encephalomyelitis virus, infectious bronchitis virus, avian reovirus, duck viral enteritis virus, equine encephalitis (eastern, western, and Venezuelan) viruses, infectious bursal disease virus, infectious laryngotracheitis virus, Aspergillus sp., and paramyxovirus-1 and -3 were negative. All chlorinated pesticide and polychlorinated biphenyl analyses were below detectable limits.

  5. En el reino de la ambivalencia. La Cuba de Alejandro de Humboldt

    Directory of Open Access Journals (Sweden)

    Oliver Lubrich

    2001-04-01

    Full Text Available Article in Spanish, Abstracts in English and German.In the Realm of Ambivalence.The Question of Cuba in Alexander von Humboldt’s American TravelogueCuba has a special role in Alexander von Humboldt’s American travel narrative: Humboldt’s experience of colonial slave economy drives his optimistic philosophy, inspired by European Enlightenment, into a crisis, and brings to surface the inherent contradictions of his discourse. This phenomenon is particularly interesting from the perspective of literary criticism: Alexander von Humboldt conceives Cuba as a poetic space, where contradictions and ambivalences coexist. Already on the boat to the island from Venezuela he creates destablizing effects of sensual perceptions. He stages his landing in Havana as a moment of oppositional impressions. Within the symbolic topography of his geographic fantasy, Cuba functions as an imaginary in-between space. And Humboldt’s philosophical and aesthetic terminology undergoes a semantic recoding in Cuba: what was once used in a philosophical and aesthetic sense, now has become charged with an economic and political meaning.

  6. Pseudomonas aeruginosa Infection in a Group of Captive Humboldt Penguins ( Spheniscus humboldti ).

    Science.gov (United States)

    Widmer, Dimitri; Ziemssen, Eva; Schade, Benjamin; Kappe, Eva; Schmitt, Ferdinand; Kempf, Hermann; Wibbelt, Gudrun

    2016-06-01

    Nine Humboldt penguins ( Spheniscus humboldti ), between 1 and 1.5 years old and kept at Zoo Dresden, developed local and systemic infections with various opportunistic pathogens within a period of 4 months. Affected birds died peracutely without preceding symptoms or showed various clinical signs, including separation from conspecifics, reduced food intake, lethargy, dyspnea, swelling of the salt glands, and ocular discharge. One bird showed central nervous signs, including seizures. Pathologic examination of deceased birds revealed severe necrotizing inflammation of the mucous membranes and deep structures of the glottis, trachea, nasal sinus, and conchae and granulomatous inflammation of the salt glands. Further findings were airsacculitis, pneumonia, hepatitis, conjunctivitis, and myositis. Pseudomonas aeruginosa was the predominant pathogen in 7 cases. Six penguins died or were euthanatized, whereas 3 penguins that received systemic antibiotic treatment with tobramycin (10 mg/kg IM q24h for 10 days) showed rapid clinical improvement. Insufficient turnover rate of the filtration system, biofilm formation on pipe surfaces, and other factors are assumed to have promoted pathogen buildup in the pool water and subsequent infection.

  7. Growth of the Humboldt Current krill in the upwelling zone off central Chile

    Science.gov (United States)

    Riquelme-Bugueño, Ramiro; Silva-Aburto, Jocelyn; Escribano, Rubén; Peterson, William T.; Schneider, Wolfgang

    2016-11-01

    Temporal variability in the daily growth rate (DGR) of the Humboldt Current krill, Euphausia mucronata, was studied in eighteen incubation experiments off the coast of Dichato, central Chile (36.5°S), carried out in 2011-2014. Intermolt period (IMP) was derived from the molting rate method in order to estimate the DGRs. Mean IMP was 9.2 ± 4.8 days (range: 2.9-18.7 d). Overall mean DGR was 0.03 ± 0.13 mm d- 1. DGR showed a dome-shaped pattern, with a higher mean DGR when upwelling was moderate (0.06 ± 0.04 mm d- 1) than intense (0.01 ± 0.00 mm d- 1) or weak (0.01 ± - 0.01 mm d- 1). This dome-shaped trend was observed in chlorophyll-a concentrations (Chla) at similar upwelling regimens. E. mucronata DGR variability was best explained by a generalized linear model which included the contribution of the Equatorial Subsurface Water, temperature, dissolved oxygen and Chla as predictor variables. Results suggest that E. mucronata is better adapted to grow under upwelling conditions when it can take advantage of high biological productivity, although the species growth is not limited when weak upwelling or even downwelling occurs. Analysis of the duration of the upwelling events suggest that E. mucronata growth is limited (shrinking) when upwellings last > 10 days.

  8. La fabrique du savoir Essai sur les carnets de voyage d'Alexander von Humboldt

    Directory of Open Access Journals (Sweden)

    Marie-Noëlle Bourguet

    2006-10-01

    Full Text Available Article in French, Abstract in English.Whilst the notebook belongs to the imagery of the enlightened scientist's persona (an auxiliary tool kept by his side to be hastily scribbled with data, when at the bench or in the field, it has been given little attention by historians of science, who are used to consider its manuscript pages as a documentary resource to complement the printed text, but rarely take the notebook as a material and cultural object by itself, the history and epistemology of which is to be explored. Only recently have new trends in the historiography, by historians of printed books and reading practices, and by social and cultural historians of knowledge, called for a fresh look and opened the way for new approaches. Taking Alexander von Humboldt as a paramount example, who expressly devoted his life to "observing and recording" the world, pen in hand, this paper explores the note-taking practices at work in his travel diaries and notebooks from the perspective of the history of scientific observation and cognitive practices. Four themes are successively considered : the question of method and apprenticeship ; the timing of note-taking practices ; the nature and status of the data jotted down on the page ; finally, their uses in the production of scientific knowledge. In the back and forth movement between the observation of the world and the writing of science, the notebook stood as a crucial intellectual step and cognitive tool.

  9. Investigation of Spatial Variation of Sea States Offshore of Humboldt Bay CA Using a Hindcast Model.

    Energy Technology Data Exchange (ETDEWEB)

    Dallman, Ann Renee; Neary, Vincent Sinclair

    2014-10-01

    Spatial variability of sea states is an important consideration when performing wave resource assessments and wave resource characterization studies for wave energy converter (WEC) test sites and commercial WEC deployments. This report examines the spatial variation of sea states offshore of Humboldt Bay, CA, using the wave model SWAN . The effect of depth and shoaling on bulk wave parameters is well resolved using the model SWAN with a 200 m grid. At this site, the degree of spatial variation of these bulk wave parameters, with shoaling generally perpendicular to the depth contours, is found to depend on the season. The variation in wave height , for example, was higher in the summer due to the wind and wave sheltering from the protruding land on the coastline north of the model domain. Ho wever, the spatial variation within an area of a potential Tier 1 WEC test site at 45 m depth and 1 square nautical mile is almost negligible; at most about 0.1 m in both winter and summer. The six wave characterization parameters recommended by the IEC 6 2600 - 101 TS were compared at several points along a line perpendicular to shore from the WEC test site . As expected, these parameters varied based on depth , but showed very similar seasonal trends.

  10. From Wilhelm von Humboldt to Hitler-are prominent people more prone to have Parkinson's disease?

    Science.gov (United States)

    Horowski; Horowski; Calne; Calne

    2000-10-01

    We describe Parkinsonism in prominent people, where Wilhelm von Humboldt and Adolf Hitler provide just two spectacular, opposing examples. In both of them, there is little if any evidence that the disease did influence their life ambitions, methods of achieving them or cognitive function in general. Thus, Hitler's Parkinsonism should remain a 'footnote' to history, and historians should acknowledge that in his last years, his trembling, his curbed posture, his slow walking, mask-like face and low voice did not indicate remorse, fear or depression as a consequence of his crimes, but were mere expressions of his disease which, until the end, had no impact on his intellectual skills and methods. The apparently higher incidence of Parkinsonism in prominent people may be just due to their higher visibility, or a consequence of disease-related personality traits (e.g. ambition, perfectionism, rigidity) which may contribute to becoming, e.g., a prominent authoritarian person. Perhaps even some early behaviour pattern (such as repressed emotions or acting in public-which could even increase the risk of some infection) contributes to a greater vulnerability for developing Parkinsonism. Further studying other prominent cases might lead us to better understanding of risk factors and the expression of early Parkinsonism.

  11. Übereinstimmung oder Gegensatz? Zum widersprüchlichen Verhältnis zwischen A. v. Humboldt und F. W. J. Schelling

    Directory of Open Access Journals (Sweden)

    Petra Werner

    2000-10-01

    Full Text Available Article in German, Abstracts in English and Spanish. The present paper investigates the conceptual development of Alexander on Humboldt. The point of reference is his relation to Schelling and to a series of investigators of nature and of physicians closely connected to Naturphilosophie. It is shown that in the correspondence of Humboldt with this group the content underwent a transformation. Scientific exchanges and a general interpretative consensus were over the years more and more replaced by social cooperation over academic appointments, and collaboration over other political problems within the scientific establishment. Humboldt fit Schelling and other partners with whom he cooperated into a network of relationships that rested on mutual social support.

  12. A viagem de Humboldt à América do Sul e uma nova ideia de paisagem: o seu impacto em Eschwege

    Directory of Open Access Journals (Sweden)

    Ana Margarida Duarte Rodrigues

    2015-01-01

    Full Text Available El viaje de Alexander von Humboldt y del botánico Aimé Bonpland a América del Sur, realizado entre 1799 y 1804, constituye un hito fundamental para la historia de la ciencia, con consecuencias en prácticamente todas las áreas del saber. Después de analizar la relación de Humboldt con Portugal, exploramos un hecho que ha pasado desapercibido: su amistad con el barón de Eschwege, arquitecto del palacio y parque de Pena en Sintra. En este sentido, este artículo profundiza en el conocimiento de la relación entre algunos textos de Humboldt escritos durante el viaje por América del Sur y las nuevas ideas que cobraban fuerza en el Viejo Continente, las de los paisajes pintorescos y sublimes.

  13. Experiment und Wissensvermittlung. Alexander von Humboldts Darstellungsmethoden in seinen Versuchen über die gereizte Muskel- und Nervenfaser

    Directory of Open Access Journals (Sweden)

    Alexander Stöger

    2016-11-01

    Full Text Available Zusammenfassung Alexander von Humboldt hat sich in jungen Jahren mit galvanischen Experimenten beschäftigt und die Resultate in einem umfassenden, zweibändigen Werk publiziert. Dabei zeigte er nicht nur, dass er als Experimentator und Teil der wissenschaftlichen Gemeinschaft fähig war, sich mit einem so neuen und komplexen Phänomen zu beschäftigen. Es lässt sich auch erkennen, dass er bereits in dieser frühen Schrift versuchte, das umfangreiche Wissen dem Leser zugänglich zu machen. Der Artikel betrachtet Humboldts Galvanismusschrift Versuche über die gereizte Muskel- und Nervenfaser (1797–1798 und untersucht einige Elemente wie Anhänge und Schreibstil, die Humboldt nutzte, um die umfangreichen Informationen zu ordnen und dem Leser so neben den Big Data seiner Erkenntnisse auch passende Suchfunktionen zur Verfügung zu stellen, die eine gezielte Nutzung überhaupt ermöglichen.  Abstract In the early stages of his scientific career, Alexander von Humboldt took an interest in experiments in galvanism. He publicised the results in a two-volume work under the title Versuche über die gereizte Muskel- und Nervenfaser (Experiments on the Stimulated Muscle and Nerve Fibre in 1797 and 1798. In this treatise, he presented himself as competent experimenter and member of the scientific community, but also demonstrated that he was capable of researching new and complex phenomena. These volumes also provide insight into his early attempts to facilitate the readers’ access to the extensive information he had compiled. This article analyses some aspects of Humboldt’s efforts to arrange his vast numbers of observations and theories, for example by means of appendices and narrative style, which he used not only to present the resulting big data collected during his research, but also to make it possible for the reader to organise and utilise this data.   Resumen A temprana edad Alexander von Humboldt se dedicó a galvanismo. En 1797 y 1798

  14. Transatlantic communication in the 19th century aspects of the correspondence between alexander von humboldt and george ticknor

    Directory of Open Access Journals (Sweden)

    Schwarz, Ingo

    2004-12-01

    Full Text Available The Prussian explorer Alexander von Humboldt (1769-1859 and the North American scholar George Ticknor (1791-1871 met in 1817 in Paris, after Ticknor had studied languages, history, and natural sciences at the University of Göttingen. Two years later, he became the first Harvard Professor of the French and Spanish Languages and Literatures. When Ticknor visited Europe in 1836 and 1856, Humboldt was his guide in the Prussian Capital. Both, Humboldt and Ticknor were mediators between the Old World and the New Continent at a time when nationalism was fashionable both in literature and in politics. Humboldt and Ticknor did not agree on all political questions. However, their respect for each other helped them avoid controversial topics in their correspondence, and possibly in their conversations. With their ability to rank the things they had in common higher than their differences they were able to maintain a fruitful transatlantic dialogue over forty years.

    El explorador prusiano Alexander von Humboldt (1769-1859 y el erudito norteamericano George Ticknor (1791-1871 se conocieron en 1817 en París, después que Ticknor había estudiado idiomas, historia y ciencias naturales en la Universidad de Göttingen. Dos años más tarde, llegó a ser el primer Profesor Harvard de Lenguas y Literatura francesa y española. Cuando Ticknor visitó Europa en 1836 y 1856, Humboldt fue su guía en la capital prusiana. Humboldt y Ticknor fueron mediadores entre el Viejo Mundo y el Nuevo Continente en una época en que el nacionalismo estaba de moda en la literatura y la política. Humboldt y Ticknor no estaban de acuerdo en todas las cuestiones políticas. Sin embargo, el respecto que existía entre ellos evitó los asuntos controvertibles en su conversación y posiblemente en su correspondencia. Con su habilidad para clasificar las cosas tenían en común por encima de sus diferencias ser capaces de mantener un diálogo fructífero trasatlántico durante

  15. Properties of basin-fill deposits, a 1971–2000 water budget, and surface-water-groundwater interactions in the upper Humboldt River basin, northeastern Nevada

    Science.gov (United States)

    Plume, Russell W.; Smith, Jody L.

    2013-01-01

    This study was done in cooperation with Elko County, Nevada in response to concerns over growing demand for water within the county and increasing external demands that are occurring statewide. The upper Humboldt River basin encompasses 4,360 square miles in northeastern Nevada and includes the headwaters area of the Humboldt River. Nearly all of the mean annual flow of the Humboldt River originates in this area. Basin-fill deposits function as the principal aquifers in the upper Humboldt River basin. Over much of the basin lowlands, the upper 200 feet of basin fill consists of clay, silt, sand, and gravel deposited in a lake of middle to late Pliocene age. Fine-grained lacustrine sediments compose from 30 to more than 70 percent of the deposits. Mean values of transmissivity are less than 1,000 feet squared per day. Total inflow to the upper Humboldt River basin, about 3,330,000 acre-feet per year, is entirely from annual precipitation. Total outflow from the basin, about 3,330,000 acre-feet per year, occurs as evapotranspiration, streamflow, subsurface flow, and pumpage. The uncertainty of these values of inflow and outflow is estimated to be 25 percent. Baseflow of the Humboldt River is minimal upstream of the Elko Hills and in downstream reaches almost all baseflow comes from tributary inflow of the North Fork and South Fork Humboldt Rivers. However, the baseflow of these two tributaries comes from groundwater discharge to their respective channels in canyons incised in volcanic rocks along the North Fork and in carbonate rocks along the South Fork. Water levels in the shallow water-table aquifer along the Humboldt River flood plain fluctuate with changes in stage of the river. During high rising river stage in spring and early summer, streamflow enters the aquifer as bank storage. As stage begins to decline in early to mid-summer groundwater in bank storage begins discharging back into the river channel and this continues through late summer. In years of below

  16. Alexander von Humboldt und Carlos Montúfar als Reisegefährten: ein Vergleich ihrer Tagebücher zum Chimborazo-Aufstieg

    Directory of Open Access Journals (Sweden)

    Reinhard Andress

    2011-03-01

    Full Text Available ZusammenfassungAls Alexander von Humboldt im Juni 1802 von Quito aus zum Rest seiner lateinamerikanischen Forschungsreise aufbrach, begleitete ihn, abgesehen von Aimé Bonpland, Carlos Montúfar bis nach Europa zurück begleitet, u.a. auch auf beim Versuch, den Chimborazo zu ersteigen. Bis kurz vor der Stadt Cajamarca im heutigen Peru schrieb Montúfar ein relativ unbekanntes Tagebuch zur Reise. Nach einem kurzen Ausflug in das Leben von Humboldts Begleiter steht im Zentrum der weiteren Ausführungen die Frage, ob sein Tagebuch ein anderes Licht auf Humboldt und speziell auf den Aufstiegsversuch wirft. Das läuft auf einen Vergleich der Tagebücher der beiden Reisegefährten hinaus und auf den Versuch, die scheinbaren Widersprüche aufzulösen.AbstractWhen Alexander von Humboldt left Quito in June 1802 in order to undertake the rest of his Latin-American trip of exploration, he was accompanied, aside from Aimé Bonpland, by Carlos Montúfar all the way back to Europe, including the attempt to scale the Chimborazo. Up to shortly before the city of Cajamarca in today’s Peru, Montúfar wrote an relatively unknown diary account of their travels. After a brief excursion into the life of Humboldt’s companion, the question is considered whether his diary sheds a different light on Humboldt and specifically on the mountain climb. That amounts to a comparison of the diaries of the two travel companions and to an attempt to explain the apparent contradictions.ResumenCuando Alexander von Humboldt salió de Quito en junio de 1802 para continuar con el resto de su viaje de exploración por la América Latina, fue acompañado por Carlos Montúfar además de Aimé Bonpland hasta que volvieron a Europa. Este trayecto incluía la tentativa de llegar a la cima del Chimborazo. Hasta un poco antes de la cuidad de Cajamarca que está en el Perú de hoy día, Montúfar mantenía un diario relativamente no conocido del viaje. Después de una breve excursión por

  17. Trasmigrazione di piante trasferimenti di concetti: la lettura scientifica ed estetica del paesaggio sud americano in Alexander von Humboldt

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    Alexander Di Bartolo

    2013-11-01

    Full Text Available The institution of plant geography as a science in Alexander von Humboldt implies for the first time the emergence of concept of migration concerning plants and animals. But plant geography and the study on vegetation in Humboldt’s books aims to conjugate various natural sciences in order to reach an understanding of the geographical distribution of vegetation. A new approach in South American analysis, connected with an aestethic lecture of Tropical lands of New Word, redefines the idea of “New” thanks to use of analogic concepts based on science and European aestethic lexicon.

  18. El Proyecto Humboldt: Una biblioteca digital para las expediciones científicas a las Islas Canarias*

    Directory of Open Access Journals (Sweden)

    Markus Schnoepf

    2005-04-01

    Full Text Available Article in Spanish, Abstracts in English, Spanish and German.The Proyecto Humboldt offers since 2002 a growing digital library for the investigation of the european scientific voyages to the Canary Islands between 1700 and 1900. The library is led by the Open Access spirit. Some results of the research work of the last years will be presented in this text. General comments on digital libraries and coming developments will be discussed in another part. Finally the special relationship of the humanities and computer-aided work will be looked at.

  19. Tod in den Anden. Ein Brief Francis Halls an Humboldt 1831 und seine historischen und politischen Hintergründe

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    Thomas Schmuck

    2013-12-01

    Full Text Available Zusammenfassung Der Forschungsreisende Francis Hall kam als Soldat nach Südamerika und betätigte sich hier auch als Pflanzensammler, Reiseschriftsteller und Bergsteiger. Er war Freund und Briefpartner Jeremy Benthams und versuchte gemeinsam mit Jean-Baptiste Boussingault den Chimborazo zu besteigen. Der liberale Journalist wurde 1833 in bürgerkriegsähnlichen Unruhen in Ecuador ermordet. Der einzige Brief Halls an Humboldt, in dem er diesen für die Naturerschließung des Landes zu gewinnen versucht, eine Sammlung andiner Pflanzen übersendet und seine Einschätzung zur politischen Lage und Zukunft Südamerikas kundtut, wird hier veröffentlicht und kommentiert. Abstract The British explorer Francis Hall was active in South-America as a soldier, a collector of plants, a writer of travelogues and a mountaineer. Together with Jean-Baptiste Boussingault he failed in ascending the Chimborazo. Friend and correspondent of Jeremy Bentham and also liberal journalist, Hall was killed during riots in Ecuador in 1833. In one single letter addressed to Humboldt, which is presented here, Hall tries to awaken interest for Ecuador, develops his views on the political future of South America and sends a collection of plants from the Andes. Resumen El explorador británico Francis Hall llegó a América del Sur como soldado y allí también se dedicó a la colección de plantas, a escribir sobre viajes y a hacer alpinismo. Intentó subir al Chimborazo con Jean-Baptiste Boussingault. El periodista liberal, amigo de Jeremy Bentham con el que también mantenía correspondencia, fue asesinado en los disturbios de 1833 en Ecuador. En la única carta de Hall a Humboldt, que está publicada y comentada aquí, Hall intenta despertar el interés de Humboldt por la naturaleza del país enviando una colección de plantas andinas y dando su opinión sobre la situación política y el futuro de América del Sur. (Traducción: Christine Lebas

  20. Measuring the World: How theory follows observation (Alexander von Humboldt Medal)

    Science.gov (United States)

    Savenije, Hubert H. G.

    2015-04-01

    I started my professional career as a hydrologist working for the government of Mozambique. I was responsible for overseeing the hydrological network, the operational hydrology and answering specific questions related to water resources availability and the occurrence of floods. In the late 1970s and early 1980s, the use of telecommunication and computers was still very limited. We had to work with handbooks, lecture notes and consultancy reports, but mostly with our brains. The key to answering a specific question was to go into the field and observe. We measured as much as we could to understand the processes that we observed. I didn't know it at the time, but this perfectly fits in the tradition of Von Humboldt. During my time in Mozambique I surveyed during and after extreme floods, such as the 1984 flood caused by the tropical cyclone Demoina. I surveyed the geometry, hydraulics and salt intrusion of 4 major Mozambican estuaries. And I measured the quality and the quantity of the flows draining onto these estuaries. Having only limited access to the literature, it was a survey without much theoretical guidance. This maybe slowed us down a bit, and sometimes led to inefficient approaches, but scientifically it was a gold mine. Not being biased by established theories is a great advantage. One does not follow onto the well-trodden, but sometimes erroneous, paths of others. After working for 6 years in Mozambique I joined an international consultant, for whom I worked for 6 years in many different countries in Asia, Africa and South America. Although the access to literature and other people's experience was better, I continued the practice of observing before believing. These 12 years of doing hydrology in practice formed the basis for the development of my own theories on hydrological processes, salt intrusion in estuaries, tidal hydraulics and even atmospheric moisture recycling. So when I started on my PhD at the age of 38, I made a completely different start

  1. Sternschnuppen und Erdmagnetismus, ein von Alexander von Humboldt und Carl Friedrich Gauß während der Universitätsfeierlichkeiten in Göttingen im September 1837 initiiertes Projekt

    Directory of Open Access Journals (Sweden)

    Karin Reich

    2011-10-01

    Full Text Available AbstractIn September 1837 the centennial celebrations of Göttingen university took place; Alexander von Humboldt, who visited Göttingen for this purpose, and Carl Friedrich Gauss created the project: Do showers of meteors influence the terrestrial magnetic phaenomena, comparable to the aurora borealis? The investigation should take place in November 1837, when strong meteor showers were once again expected. In this context the letter of Humboldt to Gauss from November 30, 1837 is of great importance; in this letter two enclosures were mentioned which still exist, but which were not presented in the edition of the letters between Humboldt and Gauss.One of these enclosures is a letter from Boguslawski to Humboldt from November 15, 1837, on which Humboldt made several remarks. Boguslawski was astronomer at the observatory of Breslau. The other enclosure was a document, containing the observation data of Humboldt and Herter, which were made in Berlin during November 12 to 15 and 21. These two documents together with the historical context are presented here for the first time, accompanied by the report by Gerling on meteor showers observed in Marburg from November 12 to 14.ZusammenfassungWährend der im September 1837 in Göttingen stattfindenden Universitätsfeierlichkeiten initiierten Alexander von Humboldt und Carl Friedrich Gauß gemeinsam ein Projekt; es ging dabei um die Frage, ob Sternschnuppen die erdmagnetischen Erscheinungen beeinflussen würden, dem Nordlicht vergleichbar. Dies sollte im folgenden November, anlässlich des zu erwartenden großen Sternschnuppenschauers, überprüft werden.Im Zentrum dieser Untersuchung steht der Brief von Alexander von Humboldt an Gauß vom 30. November 1837 (Briefwechsel Humboldt-Gauß, S. 63–65; in diesem wurden zwei Beilagen bzw. Anlagen angesprochen, die zwar noch existieren, die aber bei der Ausgabe des Humboldt-Gaußschen Briefwechsels fast ganz unberücksichtigt blieben. Es handelt sich erstens

  2. The Science of Design in Flume Experiments: A Research Experience for Undergraduates at Humboldt State University

    Science.gov (United States)

    Cashman, E.; Amoussou, G.; Calderon, J.; Castro, A.

    2005-12-01

    Humboldt State University hosted an NSF-sponsored Research Experience for Undergraduates (REU) during the summer of 2005 entitled "The Science of Design". This REU was a joint venture between the Computer Science, Math and Environmental Resources Engineering Departments. Eight students participated in research projects including energy efficient building design, fish population modeling, design of computer code requirements and bedload transport flume experiments. The recruitment of students for this REU emphasized heavily the participation of underrepresented students in the sciences. As a result, five of the eight students were women, four of the eight students were non-white, and three of the eight students were first-generation college students. The research presented in this paper began as a proposal to evaluate models that are commonly used to predict bedload transport. Many of these models relate bedload transport to hydraulic variables such as water velocity, water depth and bed slope and sediment properties such as particle size and distribution. We used a laboratory flume to conduct controlled experiments to evaluate a select number of these mathematical models. The research evolved over the eight-week program and the students were only able to touch on the evaluation of bedload transport models using experimental data during the last week of the program. However, the students did collect valuable data from multiple runs and analyzed data for variability in bedload transport with respect to flow discharge, flow velocity, water depth and channel slope. A significant finding from their research is that there is large variation in bedload transport under constant hydraulic conditions. These results will be analyzed further by the advising faculty and other undergraduate students. The focus on the "Science of Design" enabled students to respond to experimental results and adjust their research so that the experience was educational and worthwhile for both

  3. Humboldt's spa: microbial diversity is controlled by temperature in geothermal environments.

    Science.gov (United States)

    Sharp, Christine E; Brady, Allyson L; Sharp, Glen H; Grasby, Stephen E; Stott, Matthew B; Dunfield, Peter F

    2014-06-01

    Over 200 years ago Alexander von Humboldt (1808) observed that plant and animal diversity peaks at tropical latitudes and decreases toward the poles, a trend he attributed to more favorable temperatures in the tropics. Studies to date suggest that this temperature-diversity gradient is weak or nonexistent for Bacteria and Archaea. To test the impacts of temperature as well as pH on bacterial and archaeal diversity, we performed pyrotag sequencing of 16S rRNA genes retrieved from 165 soil, sediment and biomat samples of 36 geothermal areas in Canada and New Zealand, covering a temperature range of 7.5-99 °C and a pH range of 1.8-9.0. This represents the widest ranges of temperature and pH yet examined in a single microbial diversity study. Species richness and diversity indices were strongly correlated to temperature, with R(2) values up to 0.62 for neutral-alkaline springs. The distributions were unimodal, with peak diversity at 24 °C and decreasing diversity at higher and lower temperature extremes. There was also a significant pH effect on diversity; however, in contrast to previous studies of soil microbial diversity, pH explained less of the variability (13-20%) than temperature in the geothermal samples. No correlation was observed between diversity values and latitude from the equator, and we therefore infer a direct temperature effect in our data set. These results demonstrate that temperature exerts a strong control on microbial diversity when considered over most of the temperature range within which life is possible.

  4. Comprehensive Model of Jumbo Squid Dosidicus gigas Trophic Ecology in the Northern Humboldt Current System

    Science.gov (United States)

    Alegre, Ana; Ménard, Frédéric; Tafur, Ricardo; Espinoza, Pepe; Argüelles, Juan; Maehara, Víctor; Flores, Oswaldo; Simier, Monique; Bertrand, Arnaud

    2014-01-01

    The jumbo squid Dosidicus gigas plays an important role in marine food webs both as predator and prey. We investigated the ontogenetic and spatiotemporal variability of the diet composition of jumbo squid in the northern Humboldt Current system. For that purpose we applied several statistical methods to an extensive dataset of 3,618 jumbo squid non empty stomachs collected off Peru from 2004 to 2011. A total of 55 prey taxa was identified that we aggregated into eleven groups. Our results evidenced a large variability in prey composition as already observed in other systems. However, our data do not support the hypothesis that jumbo squids select the most abundant or energetic taxon in a prey assemblage, neglecting the other available prey. Indeed, multinomial model predictions showed that stomach fullness increased with the number of prey taxa, while most stomachs with low contents contained one or two prey taxa only. Our results therefore question the common hypothesis that predators seek locally dense aggregations of monospecific prey. In addition D. gigas consumes very few anchovy Engraulis ringens in Peru, whereas a tremendous biomass of anchovy is potentially available. It seems that D. gigas cannot reach the oxygen unsaturated waters very close to the coast, where the bulk of anchovy occurs. Indeed, even if jumbo squid can forage in hypoxic deep waters during the day, surface normoxic waters are then required to recover its maintenance respiration (or energy?). Oxygen concentration could thus limit the co-occurrence of both species and then preclude predator-prey interactions. Finally we propose a conceptual model illustrating the opportunistic foraging behaviour of jumbo squid impacted by ontogenetic migration and potentially constrained by oxygen saturation in surface waters. PMID:24465788

  5. Impacts of UV radiation on plankton community metabolism along the Humboldt Current System

    Directory of Open Access Journals (Sweden)

    N. Godoy

    2011-06-01

    Full Text Available The Humbolt Current System along the Chilean coast is one of the most productive regions in the world, where UV levels are particularly high due to stratospheric ozone depletion. Research has shown that phytoplankton photosynthesis can be severely inhibited by surface radiation and there are concerns that this will reduce not only algal carbon fixation, but also the carbon supply for higher trophic level. Experimental estimates of community metabolism (NCP, GPP and R and the impacts of UV on community metabolism were assessed at 8 stations along the meridional track by the Humbold-2009 cruise (54.80° S–23.85° S on board RV Hespérides from 5 to 15 March 2009. The results showed an increase UVB penetration towards the Equator, along the Humboldt Current System, suggesting a more important impact of UVB radiation towards the north. The metabolic rates observed were within average values reported for the Ocean Pacific and did not show the water mass investigated to be exceptionally productive at the time of the study. Experimental evaluation of the effect of UVB radiation on surface waters, those most strongly affected by UVB, showed that UVB radiation suppressed net community production, resulting in a dominance of heterotrophic communities in surface waters, compared to the prevalence of autotrophic communities inferred when materials, excluding UVB radiation, are used for incubation. These results show that UVB radiation, which has increased greatly in the study area, may have suppressed net community production of the plankton communities, possibly driving plankton communities in the Southwest Pacific towards CO2 sources.

  6. Bacteriohopanepolyols along redox gradients in the Humboldt Current System off northern Chile.

    Science.gov (United States)

    Matys, E D; Sepúlveda, J; Pantoja, S; Lange, C B; Caniupán, M; Lamy, F; Summons, R E

    2017-08-03

    Marine oxygen minimum zones (OMZs) are characterized by the presence of subsurface suboxic or anoxic waters where diverse microbial processes are responsible for the removal of fixed nitrogen. OMZs have expanded over past decades and are expected to continue expanding in response to the changing climate. The implications for marine biogeochemistry, particularly nitrogen cycling, are uncertain. Cell membrane lipids (biomarkers), such as bacterial bacteriohopanepolyols (BHPs) and their degradation products (hopanoids), have distinctive structural attributes that convey information about their biological sources. Since the discovery of fossil hopanoids in ancient sediments, the study of BHPs has been of great biogeochemical interest due to their potential to serve as proxies for bacteria in the geological record. A stereoisomer of bacteriohopanetetrol (BHT), BHT II, has been previously identified in OMZ waters and has as been unequivocally identified in culture enrichments of anammox bacteria, a key group contributing to nitrogen loss in marine OMZs. We tested BHT II as a proxy for suboxia/anoxia and anammox bacteria in suspended organic matter across OMZ waters of the Humboldt Current System off northern Chile, as well as in surface and deeply buried sediments (125-150 ky). The BHT II ratio (BHT II/total BHT) increases as oxygen content decreases through the water column, consistent with previous results from Perú, the Cariaco Basin and the Arabian Sea, and in line with microbiological evidence indicating intense anammox activity in the Chilean OMZ. Notably, BHT II is transported from the water column to surface sediments, and preserved in deeply buried sediments, where the BHT II ratio correlates with changes in δ(15) N sediment values during glacial-interglacial transitions. This study suggests that BHT II offers a proxy for past changes in the relative importance of anammox, and fluctuations in nitrogen cycling in response to ocean redox changes through the

  7. Comprehensive model of Jumbo squid Dosidicus gigas trophic ecology in the Northern Humboldt current system.

    Directory of Open Access Journals (Sweden)

    Ana Alegre

    Full Text Available The jumbo squid Dosidicus gigas plays an important role in marine food webs both as predator and prey. We investigated the ontogenetic and spatiotemporal variability of the diet composition of jumbo squid in the northern Humboldt Current system. For that purpose we applied several statistical methods to an extensive dataset of 3,618 jumbo squid non empty stomachs collected off Peru from 2004 to 2011. A total of 55 prey taxa was identified that we aggregated into eleven groups. Our results evidenced a large variability in prey composition as already observed in other systems. However, our data do not support the hypothesis that jumbo squids select the most abundant or energetic taxon in a prey assemblage, neglecting the other available prey. Indeed, multinomial model predictions showed that stomach fullness increased with the number of prey taxa, while most stomachs with low contents contained one or two prey taxa only. Our results therefore question the common hypothesis that predators seek locally dense aggregations of monospecific prey. In addition D. gigas consumes very few anchovy Engraulis ringens in Peru, whereas a tremendous biomass of anchovy is potentially available. It seems that D. gigas cannot reach the oxygen unsaturated waters very close to the coast, where the bulk of anchovy occurs. Indeed, even if jumbo squid can forage in hypoxic deep waters during the day, surface normoxic waters are then required to recover its maintenance respiration (or energy?. Oxygen concentration could thus limit the co-occurrence of both species and then preclude predator-prey interactions. Finally we propose a conceptual model illustrating the opportunistic foraging behaviour of jumbo squid impacted by ontogenetic migration and potentially constrained by oxygen saturation in surface waters.

  8. Comprehensive model of Jumbo squid Dosidicus gigas trophic ecology in the Northern Humboldt current system.

    Science.gov (United States)

    Alegre, Ana; Ménard, Frédéric; Tafur, Ricardo; Espinoza, Pepe; Argüelles, Juan; Maehara, Víctor; Flores, Oswaldo; Simier, Monique; Bertrand, Arnaud

    2014-01-01

    The jumbo squid Dosidicus gigas plays an important role in marine food webs both as predator and prey. We investigated the ontogenetic and spatiotemporal variability of the diet composition of jumbo squid in the northern Humboldt Current system. For that purpose we applied several statistical methods to an extensive dataset of 3,618 jumbo squid non empty stomachs collected off Peru from 2004 to 2011. A total of 55 prey taxa was identified that we aggregated into eleven groups. Our results evidenced a large variability in prey composition as already observed in other systems. However, our data do not support the hypothesis that jumbo squids select the most abundant or energetic taxon in a prey assemblage, neglecting the other available prey. Indeed, multinomial model predictions showed that stomach fullness increased with the number of prey taxa, while most stomachs with low contents contained one or two prey taxa only. Our results therefore question the common hypothesis that predators seek locally dense aggregations of monospecific prey. In addition D. gigas consumes very few anchovy Engraulis ringens in Peru, whereas a tremendous biomass of anchovy is potentially available. It seems that D. gigas cannot reach the oxygen unsaturated waters very close to the coast, where the bulk of anchovy occurs. Indeed, even if jumbo squid can forage in hypoxic deep waters during the day, surface normoxic waters are then required to recover its maintenance respiration (or energy?). Oxygen concentration could thus limit the co-occurrence of both species and then preclude predator-prey interactions. Finally we propose a conceptual model illustrating the opportunistic foraging behaviour of jumbo squid impacted by ontogenetic migration and potentially constrained by oxygen saturation in surface waters.

  9. Fouling and thermal-performance characteristics of the Humboldt Bay Unit 2 power-plant condenser

    Energy Technology Data Exchange (ETDEWEB)

    Rabas, T.J. [Argonne National Lab., IL (United States); Elliott, E.S. [Pacific Gas and Electric Co., San Ramon, CA (US)

    1993-07-01

    An experimental program was conducted at the Humboldt Bay condenser using eight clusters of four neighboring tubes with different conditions. In each cluster, there were (1) a new tube, the tubeside fluid being distilled water; (2) a new tube, the tubeside fluid being plant circulating water (seawater) and no cleaning; (3) an old tube, plant circulating water with no cleaning; and (4) an old tube, plant circulating water with normal periodic manual cleaning (blowing plugs or sponge balls). These tube clusters were located at four different locations within both the first and second passes of this two-pass condenser. Because of the different conditions, the fouling and cleaning characteristics can be obtained with measurements of the flow rate and inlet, outlet, and saturation temperatures. In addition to the fouling data, the thermal performance can be compared to that obtained with the standard rating method. There was a reduction in the thermal performance of the new, distilled-water tubes for about the first 80 days, and then the performance remained essentially constant. This performance change was most likely the result of the change from dropwise to filmwise condensation on the 7/8-in OD, 18 BWG Admiralty tubes. There was a continued increase of the tubeside fouling resistance with time (no asymptotic behavior) for the tubes that were not cleaned in each cluster using the plant circulating water. The fouling rates were somewhat larger for the first or lower temperature pass initially for the new tubes and after about 100 days for the old tubes. However, the fouling resistance values were substantially larger for the old tubes.

  10. A máquina da cultura: pedagogia e política entre Wilhelm von Humboldt e Nietzsche = The machine of the culture: pedagogy and politics between Wilhelm von Humboldt and Nietzsche

    Directory of Open Access Journals (Sweden)

    Britto, Fabiano de Lemos

    2011-01-01

    Full Text Available A relação entre as demandas da cultura e a interferência política do Estado na esfera da educação foi um dos temas mais importantes do debate intelectual na Alemanha desde o final do século XVIII até a unificação de 1871. A curva descrita por esse período, que tem Wilhelm von Humboldt e Nietzsche como seus dois extremos, constitui, em última análise, a própria trajetória do liberalismo no sistema de ensino alemão do século XIX. Ao reconstruirmos os elementos conceituais envolvidos nesse debate podemos não apenas resgatar as questões que permitiram ao modelo germânico alcançar o sucesso obtido na Europa de então como modelo pedagógico, mas, ao mesmo tempo, compreender como as filosofias de Humboldt e Nietzsche se caracterizaram, em certo momento, como um esforço de participar desta discussão

  11. Two Exceptional Witnesses of Latin American Independence: The Prussian Explorer Alexander Von Humboldt and The Virginian Politician Thomas Jefferson

    Directory of Open Access Journals (Sweden)

    Sandra Rebok

    2014-01-01

    Full Text Available Este artículo analiza las respectivas posturas de Alexander von Humboldt y Thomas Jefferson en relación con la independencia de los territorios hispanoamericanos y el modo en que estas se hallaban condicionadas por sus propias experiencias: Humboldt, como observador de la situación americana justo antes del comienzo de los movimientos independentistas; y Jefferson, como actor importante en la independencia de los EE.UU. y la posterior creación de una nueva sociedad. Asimismo, no se pueden estudiar sus respectivas posiciones hacia los movimientos independentistas en la América española, desvinculadas de sus conclusiones respecto a la Revolución francesa y sus consecuencias. El trabajo muestra de qué manera los dos personajes comentaron estos sucesos en la correspondencia que mantuvieron entre sí. Finalmente, también se evalúan, a través de estos famosos representantes del llamado Nuevo Mundo y el Viejo Mundo, las diferencias y similitudes en la manera de reaccionar ante estos eventos políticos y sociales desde el punto de vista europeo, en comparación con la mirada desde Norteamérica.

  12. Un sabio en la meseta. El viaje de Alejandro de Humboldt a España en 1799

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    Sandra Rebok

    2002-10-01

    Full Text Available Article in Spanish, Abstracts in English, Spanish and German.We introduce the article originally published in the German periodical Hertha in 1825, in which Alexander von Humboldt made comments on his trip to Spain and on the geographic study of the plateau he had undertaken, with an introductory essay that presents the Spanish travel in its context. Due to the precise scientific argument used and the given barometric levels and topographic profile of the Iberian penninsula, we have considered the translation into Spanish of Über die Gestalt und das Klima des Hochlandes in der iberischen Halbinsel (Sobre la configuración y el clima de la meseta de la Península Ibérica as necessary. The way in which Alexander von Humboldt presented his research upon the penninsula is a rather peculiar one since, in spite of the strictly scientific style used in his writings, he leads the reader by using a letter to his editor, Professor Berghaus, and inserts excerpts from his diary as well as data the he had obtained from his Spanish correspondents.

  13. Molecular Epidemiology of Avian Malaria in Wild Breeding Colonies of Humboldt and Magellanic Penguins in South America.

    Science.gov (United States)

    Sallaberry-Pincheira, Nicole; Gonzalez-Acuña, Daniel; Herrera-Tello, Yertiza; Dantas, Gisele P M; Luna-Jorquera, Guillermo; Frere, Esteban; Valdés-Velasquez, Armando; Simeone, Alejandro; Vianna, Juliana A

    2015-06-01

    Avian malaria is a disease caused by species of the genera Haemoproteus, Leucocytozoon, and Plasmodium. It affects hundreds of bird species, causing varied clinical signs depending on the susceptibility of the host species. Although high mortality has been reported in captive penguins, limited epidemiological studies have been conducted in wild colonies, and isolated records of avian malaria have been reported mostly from individuals referred to rehabilitation centers. For this epidemiological study, we obtained blood samples from 501 adult Humboldt and 360 adult Magellanic penguins from 13 colonies throughout South America. To identify malaria parasitaemia, we amplified the mtDNA cytochrome b for all three parasite genera. Avian malaria was absent in most of the analyzed colonies, with exception of the Punta San Juan Humboldt penguin colony, in Peru, where we detected at least two new Haemoproteus lineages in three positive samples, resulting in a prevalence of 0.6% for the species. The low prevalence of avian malaria detected in wild penguins could be due to two possible causes: A low incidence, with high morbidity and mortality in wild penguins or alternatively, penguins sampled in the chronic stage of the disease (during which parasitaemia in peripheral blood samples is unlikely) would be detected as false negatives.

  14. Alexander von Humboldt: galvanism, animal electricity, and self-experimentation part 1: formative years, naturphilosophie, and galvanism.

    Science.gov (United States)

    Finger, Stanley; Piccolino, Marco; Stahnisch, Frank W

    2013-01-01

    During the 1790s, Alexander von Humboldt (1769-1859), who showed an early interest in many facets of natural philosophy and natural history, delved into the controversial subject of galvanism and animal electricity, hoping to shed light on the basic nature of the nerve force. He was motivated by his broad worldview, the experiments of Luigi Galvani, who favored animal electricity in more than a few specialized fishes, and the thinking of Alessandro Volta, who accepted specialized fish electricity but was not willing to generalize to other animals, thinking Galvani's frog experiments flawed by his use of metals. Differing from many German Naturphilosophen, who shunned "violent" experiments, the newest instruments, and detailed measurement, Humboldt conducted thousands of galvanic experiments on animals and animal parts, as well as many on his own body, some of which caused him great pain. He interpreted his results as supporting some but not all of the claims made by both Galvani and Volta. Notably, because of certain negative findings and phenomenological differences, he remained skeptical about the intrinsic animal force being qualitatively identical to true electricity. Hence, he referred to a "galvanic force," not animal electricity, in his letters and publications, a theoretical position he would abandon with Volta's help early in the new century.

  15. First report of the white pine blister rust fungus, Cronartium ribicola, infecting Pinus flexilis on Pine Mountain, Humboldt National Forest, Elko County, northeastern Nevada, U.S.A.

    Science.gov (United States)

    Detlev R. Vogler; Patricia E. Maloney; Tom Burt; Jacob W. Snelling

    2017-01-01

    In 2013, while surveying for five-needle white pine cone crops in northeastern Nevada, we observed white pine blister rust, caused by the rust pathogen Cronartium ribicola Fisch., infecting branches and stems of limber pines (Pinus flexilis James) on Pine Mountain (41.76975°N, 115.61622°W), Humboldt National Forest,...

  16. Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in and near Humboldt Wildlife Management Area, Churchill and Pershing Counties, Nevada, 1990-91

    Science.gov (United States)

    Seiler, R.L.; Ekechukwu, G.A.; Hallock, R.J.

    1993-01-01

    A reconnaissance investigation was begun in 1990 to determine whether the quality of irrigation drainage in and near the Humboldt Wildlife Management Area, Nevada, has caused or has the potential to cause harmful effects on human health, fish, and wildlife or to impair beneficial uses of water. Samples of surface and ground water, bottom sediment, and biota collected from sites upstream and downstream from the Lovelock agricultural area were analyzed for potentially toxic trace elements. Also analyzed were radioactive substances, major dissolved constitu- ents, and nutrients in water, as well as pesticide residues in bottom sediment and biota. In samples from areas affected by irrigation drainage, the following constituents equaled or exceeded baseline concentrations or recommended standards for protection of aquatic life or propagation of wildlife--in water: arsenic, boron, dissolved solids, mercury, molybdenum, selenium, sodium, and un-ionized ammonia; in bottom sediment; arsenic and uranium; and in biota; arsenic, boron, and selenium. Selenium appears to be biomagnified in the Humboldt Sink wetlands. Biological effects observed during the reconnaissance included reduced insect diversity in sites receiving irrigation drainage and acute toxicity of drain water and sediment to test organisms. The current drought and upstream consumption of water for irrigation have reduced water deliveries to the wetlands and caused habitat degradation at Humboldt Wildlife Management Area. During this investigation. Humboldt and Toulon Lakes evaporated to dryness because of the reduced water deliveries.

  17. Le Cosmos d'Alexandre von Humboldt et La Tentation de saint Antoine de Gustave Flaubert : deux œuvres de toute une vie

    Directory of Open Access Journals (Sweden)

    Mary Orr

    2010-12-01

    Full Text Available Dans le septième et dernier tableau de La Tentation de saint Antoine de 1874, la fin célèbre est mise en contexte par une description longue et détaillée qui n’a jamais attiré l’attention critique qu’elle mérite. Cet article analyse l’importance de ce panorama du monde naturel sous la forme d’une exploration intertextuelle des passages du Cosmos d’Alexandre de Humboldt. Que Flaubert signale ses lectures de l’œuvre de Humboldt dans sa Correspondance de 1860 suggère des liens très riches entre Le Cosmos – que Humboldt désigne comme « l’œuvre de ma vie » – et la Tentation de saint Antoine définitive que Flaubert retravaillait au même moment. Cette relecture de La Tentation à travers la perspective de Humboldt souligne la place importante du Cosmos parmi les découvertes et les textes scientifiques contemporains de Flaubert, et la manière dont ceux-ci informent la vision de la vie scientifique et religieuse de son protagoniste, Antoine.In the seventh and final tableau of the Tentation de Saint Antoine of 1874, the famous finale is set in the context of a long, detailed description which has not attracted the critical attention it deserves. This article focuses on the importance of this panorama of the natural world as an intertextual exploration of passages from Kosmos by Alexander von Humboldt. The fact that Flaubert’s Correspondance of 1860 mentions his reading of Humboldt’s works suggests rich lines of investigation between Kosmos – which Humboldt calls the « work of all of life » and the final Tentation de Saint Antoine,which Flaubert was reworking at the same moment. This re-reading of the Tentation through the optic of Humboldt underscores the pivotal position of Kosmos amid the scientific discoveries and texts contemporary to Flaubert, and how these inform the vision of life of his protagonist, Antoine, as scientific and religious.

  18. The Humboldt Current System: Ecosystem components and processes, fisheries, and sediment studies

    Science.gov (United States)

    Montecino, Vivian; Lange, Carina B.

    2009-12-01

    In the Humboldt Current System (HCS), biological and non-biological components, ecosystem processes, and fisheries are known to be affected by multi-decadal, inter-annual, annual, and intra-seasonal scales. The interplay between atmospheric variability, the poleward undercurrent, the shallow oxygen minimum zone (OMZ), and the fertilizing effect of coastal upwelling and overall high primary production rates drive bio-physical interactions, the carbon biomass, and fluxes of gases and particulate and dissolved matter through the water column. Coastal upwelling (permanent and seasonally modulated off Peru and northern Chile, and markedly seasonal between 30°S and 40°S) is the key process responsible for the high biological productivity in the HCS. At present, the western coast of South America produces more fish per unit area than any other region in the world ocean (i.e. ∼7.5 × 10 6 t of anchoveta were landed in 2007). Climate changes on different temporal scales lead to alterations in the distribution ranges of anchoveta and sardine populations and shifts in their dominance throughout the HCS. The factors affecting the coastal marine ecosystem that reverberate in the fisheries are crucial from a social perspective, since the economic consequences of mismanagement can be severe. Fish remains are often well-preserved in sediment settings under the hypoxic conditions of the OMZ off Peru and Chile, and reveal multi-decadal variability and centennial-scale changes in fish populations. Sediment studies from the Chilean continental margin encompassing the last 20,000 years of deposition reveal changes in sub-surface conditions in the HCS during deglaciation, interpreted to include: a major reorganization of the OMZ; a deglacial increase in denitrification decoupled from local marine productivity; and higher deglacial and Holocene paleoproductivities compared to the Last Glacial Maximum in central-south Chile (35-37°S) while this scheme is reversed for north

  19. Considerações sobre os conceitos de natureza, espaço e morfologia em Alexander von Humboldt e a gênese da geografia física moderna Considerations on the concepts of nature, space, and morphology in Alexander von Humboldt and on the genesis of modern physical geography

    Directory of Open Access Journals (Sweden)

    Antonio Carlos Vitte

    2010-01-01

    Full Text Available Discute a formação dos conceitos de natureza, espaço e morfologia na obra de Alexander von Humboldt e seus impactos na formação da geografia física moderna. Influenciado pelas reflexões de Kant em Crítica do juízo e pelos trabalhos de Goethe e Schelling, Humboldt desenvolveu nova interpretação e representação para a natureza na superfície da Terra, em que o conceito de espacialidade é fundamental para a explicação dos fenômenos da natureza. A geografia física moderna estrutura-se a partir de complexo cruzamento de influências estéticas e instrumentais desenvolvidas por Humboldt, nas quais o princípio da conexão é importante para a invenção artística e científica do conceito de paisagem geográfica.The article discusses how Alexander von Humboldt developed the concepts of nature, space, and morphology in his works and impacted the shaping of modern physical geography. Influenced by Kant's ideas in Critique of judgment and also by the writings of Goethe and Schelling, Humboldt devised a new interpretation and representation of nature on Earth's surface, wherein the concept of space is essential to explaining natural phenomena. Modern physical geography is grounded in a complex interweaving of aesthetic and instrumental influences fashioned by Humboldt, with the principle of connection playing an important role in the artistic and scientific development of the notion of a geographic landscape.

  20. Oceanographic station data from bottle casts from the HUMBOLDT from Ocean Weather Station B (OWS-B) in the North Atlantic Ocean 26 May 1968 to 20 June 1968 (NODC Accession 6800071)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Oceanographic station data were collected from the HUMBOLDT within a 1-mile radius of Ocean Weather Station C (5245N 03530W) and in transit. Data were collected by...

  1. Temperature, current meter, and other data from moored buoy from the HUMBOLDT as part of the GARP (Global Atmospheric Research Program) Atlantic Tropical Experiment (GATE) project, 28 July 1974 - 18 August 1974 (NODC Accession 7601676)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, current meter, and other data were collected using moored buoy from the HUMBOLDT from July 28, 1974 to August 18, 1974. Data were submitted by US Coast...

  2. Oceanographic profile plankton, Temperature Salinity and other measurements collected using bottle from VICTORIA 1 FISHING BOAT), ALEJERO HUMBOLDT and other platforms in the South Pacific, Coastal S Pacific and other locations from 1980 to 1982 (NODC Accession 0002083)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature, salinity and other measurements found in dataset OSD taken from the VICTORIA 1(FISHING BOAT), ALEJERO HUMBOLDT and other platforms in the South...

  3. Oceanographic station data from bottle casts from the HUMBOLDT from Ocean Weather Station C (OWS-C) in the North Atlantic Ocean 15 March 1969 to 06 April 1969 (NODC Accession 6900694)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Oceanographic station data were collected from the HUMBOLDT within a 1-mile radius of Ocean Weather Station C (5245N 03530W) and in transit. Data were collected by...

  4. Oceanographic station data from bottle casts from the HUMBOLDT from Ocean Weather Station B (OWS-B) in the North Atlantic Ocean 24 July 1968 to 15 August 1968 (NODC Accession 6800215)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Oceanographic station data were collected from the HUMBOLDT within a 1-mile radius of Ocean Weather Station B (5630N 05100W) and in transit. Data were collected by...

  5. Metabolic physiology of the Humboldt squid, Dosidicus gigas: Implications for vertical migration in a pronounced oxygen minimum zone

    Science.gov (United States)

    Rosa, Rui; Seibel, Brad A.

    2010-07-01

    The Humboldt (or jumbo) squid, Dosidicus gigas, is an active predator endemic to the Eastern Pacific that undergoes diel vertical migrations into a pronounced oxygen minimum layer (OML). Here, we investigate the physiological mechanisms that facilitate these migrations and assess the associated costs and benefits. Exposure to hypoxic conditions equivalent to those found in the OML (∼10 μM O 2 at 10 °C) led to a significant reduction in the squid’s routine metabolic rate (RMR), from 8.9 to 1.6 μmol O 2 g -1 h -1 ( p gigas may repay any oxygen debt accumulated during the daytime. The dive to deeper water may minimize exposure to stressful surface temperatures when most prey have migrated to depth during the daytime. The physiological and ecological strategies demonstrated here may have facilitated the recent range expansion of this species into northern waters where expanding hypoxic zones prohibit competing top predators.

  6. La recepción de la figura y obra de Humboldt en México 1821-2000

    OpenAIRE

    José Enrique Covarrubias

    2009-01-01

    Mediante obras como el las Tablas geográfico-políticas sobre la Nueva España, Ensayo político sobre el reino de la Nueva España, Vistas de las Cordilleras y algunas otras, A. von Humboldt no sólo contribuyó al conocimiento de México por gente de otros países sino también a la reflexión de los propios mexicanos sobre su historia, sociedad, cultura y grado de riqueza. De estos temas de reflexión el más continuo han sido los relacionados con la historia, la sociedad y la riqueza. Sin embargo, un...

  7. 洪堡理论作用下的美国教育%American Education in Light of Humboldt Theory

    Institute of Scientific and Technical Information of China (English)

    于战明

    2015-01-01

    After the American Civil War, under the guidance of Humboldt theory, a modern education system was gradually established in the United States, bestowing immense benefits on the general public in terms of science popularization and vocational education.As a result, the United States has undergone robust development in all as-pects of the society, becoming a superpower in the world.%美国南北战争后在洪堡理论的指导下建立了现代教育体系,使得受教育者获得了科学的普及教育和职业教育,极大地推动了美国社会各个领域的超前发展,使之成为头号强国。

  8. Sensitivity of the Humboldt current system to global warming: a downscaling experiment of the IPSL-CM4 model

    Energy Technology Data Exchange (ETDEWEB)

    Echevin, Vincent [LOCEAN, Paris (France); Goubanova, Katerina; Dewitte, Boris [LEGOS, Toulouse (France); IMARPE, IGP, LEGOS, Lima (Peru); Belmadani, Ali [LOCEAN, Paris (France); LEGOS, Toulouse (France); University of Hawaii at Manoa, IPRC, International Pacific Research Center, SOEST, Honolulu, Hawaii (United States)

    2012-02-15

    The impact of climate warming on the seasonal variability of the Humboldt Current system ocean dynamics is investigated. The IPSL-CM4 large scale ocean circulation resulting from two contrasted climate scenarios, the so-called Preindustrial and quadrupling CO{sub 2}, are downscaled using an eddy-resolving regional ocean circulation model. The intense surface heating by the atmosphere in the quadrupling CO{sub 2} scenario leads to a strong increase of the surface density stratification, a thinner coastal jet, an enhanced Peru-Chile undercurrent, and an intensification of nearshore turbulence. Upwelling rates respond quasi-linearly to the change in wind stress associated with anthropogenic forcing, and show a moderate decrease in summer off Peru and a strong increase off Chile. Results from sensitivity experiments show that a 50% wind stress increase does not compensate for the surface warming resulting from heat flux forcing and that the associated mesoscale turbulence increase is a robust feature. (orig.)

  9. Impacts of Kelvin wave forcing in the Peru Humboldt Current system: Scenarios of spatial reorganizations from physics to fishers

    Science.gov (United States)

    Bertrand, Sophie; Dewitte, Boris; Tam, Jorge; Díaz, Erich; Bertrand, Arnaud

    2008-10-01

    Because climate change challenges the sustainability of important fish populations and the fisheries they support, we need to understand how large scale climatic forcing affects the functioning of marine ecosystems. In the Humboldt Current system (HCS), a main driver of climatic variability is coastally-trapped Kelvin waves (KWs), themselves originating as oceanic equatorial KWs. Here we (i) describe the spatial reorganizations of living organisms in the Humboldt coastal system as affected by oceanic KWs forcing, (ii) quantify the strength of the interactions between the physical and biological component dynamics of the system, (iii) formulate hypotheses on the processes which drive the redistributions of the organisms, and (iv) build scenarios of space occupation in the HCS under varying KW forcing. To address these questions we explore, through bivariate lagged correlations and multivariate statistics, the relationships between time series of oceanic KW amplitude (TAO mooring data and model-resolved baroclinic modes) and coastal Peruvian oceanographic data (SST, coastal upwelled waters extent), anchoveta spatial distribution (mean distance to the coast, spatial concentration of the biomass, mean depth of the schools), and fishing fleet statistics (trip duration, searching duration, number of fishing sets and catch per trip, features of the foraging trajectory as observed by satellite vessel monitoring system). Data sets span all or part of January 1983 to September 2006. The results show that the effects of oceanic KW forcing are significant in all the components of the coastal ecosystem, from oceanography to the behaviour of the top predators - fishers. This result provides evidence for a bottom-up transfer of the behaviours and spatial stucturing through the ecosystem. We propose that contrasting scenarios develop during the passage of upwelling versus downwelling KWs. From a predictive point of view, we show that KW amplitudes observed in the mid-Pacific can

  10. Personalidad, ciencia y contexto histórico en un sabio ilustrado: Humboldt y el Virreinato de la Nueva Granada (1801-1829

    Directory of Open Access Journals (Sweden)

    Navas Sierra, J. Alberto

    1999-06-01

    Full Text Available Not available.Sin que hubiera sido el resultado de un bien meditado proyecto expedicionario, el científico prusiano, barón Alejandro de Humboldt, terminó recorriendo de Norte a Sur el antiguo Virreinato de la Nueva Granada. Su visita, que se inicio en marzo de 1801 y se prolongó hasta agosto de 1802, resultó extraordinariamente rica en experiencias y resultados científicos; los que han sido largamente resaltados por una amplia bibliografía al respecto. Sin embargo, no han sido suficientemente estudiados los aspectos histórico-contextuales y biográficos que antecedieron y singularizaron la estadía de Humboldt en las actuales Repúblicas de Colombia y Ecuador.

  11. Las anotaciones de Wilhelm von Humboldt sobre algunas lenguas indígenas de la Nueva Granada: las gramáticas betoi y mosca (chibcha

    Directory of Open Access Journals (Sweden)

    Dümmler Christiane

    1998-06-01

    Full Text Available

    En vista de que la situación de contacto lingüístico en el Nuevo Reino de Granada no era comparable con la de la Nueva España y la Nueva Castilla, describiré en la segunda parte la forma en que trabajaron los misioneros lingüistas, así como las condiciones bajo las cuales surgieron las gramáticas y compendios sobre lenguas indígenas. La tercera parte versará sobre las anotaciones de Wilhelm van Humboldt en tomo a dos obras lingüísticas: la gramática del muisca de Bernardo de Lugo y los apuntes sobre la lengua betoi del sacerdote jesuita Padilla. Para finalizar evaluaré las observaciones de Humboldt desde una perspectiva de la lingüística y la filosofía del lenguaje.

  12. Sutilezas de la producción cartográfica en el mapa del Orinoco de Humboldt Subtleties of cartographic production in Humboldt’s Orinoco Map

    Directory of Open Access Journals (Sweden)

    Ángela Pérez Mejía

    2007-11-01

    Full Text Available Cuando en 1804 Alexander Von Humboldt y Aimé Bonpland salieron del territorio de la Nueva Granada para continuar con su recorrido por la América equinoccial, habían dejado en manos del Virrey Pedro Mendinueta y Muzquiz el primer mapa del río Magdalena (nunca antes dibujado en su totalidad, mapas que corregían la ruta del Orinoco y el plano de Cartagena y de Santa fé. Eran ocho pliegos de cartografía, que dadas las circunstancias políticas, representaban un objeto de porte imperial. El regalo era apenas una formalidad hacia quien les había permitido viajar sin restricciones por los territorios de Venezuela y Colombia. El verdadero legado que dejaba Humboldt quedaba en manos de sus amigos independentistas: un vasto conocimiento geográfico que ayudaría a alimentar la causa patriótica. La producción geográfica de la expedición de Humboldt y Bonpland tuvo repercusiones concretas en la formación de las nuevas repúblicas. No obstante, el proceso de producción de ese conocimiento geográfico, a menudo ignorado en nuestro afán por alabar al geógrafo, fue también el producto de una interesante red de relaciones personales, científicas y políticas cuya interpretación contribuye a nuestro conocimiento geográfico del momento. El presente artículo es una versión corregida del capítulo sobre la producción geográfica de Humboldt de mi libro La geografía de los tiempos difíciles (Pérez Mejía, 2002 y plantea una interpretación de la producción geográfica de Humboldt, concretamente de su mapa “Itinerario del Orinoco”, en busca de las claves sobre la multiplicidad de ese proceso de producción cartográfica y sus repercusiones locales.When Alexander Von Humboldt and Aimé Bonpland left the New Granade’s territory in 1804 to continue their trip across intertropical America, they left the first map of the Magdalena river in the hands of the Viceroy Pedro Mendinueta and Muzquiz (never before fully drawn, along with maps that

  13. Population Trends of a Mixed-Species Colony of Humboldt and Magellanic Penguins in Southern Chile after Establishing a Protected Area

    OpenAIRE

    Ronnie Reyes-Arriagada; Luciano Hiriart-Bertrand; Victoria Riquelme; Alejandro Simeone; Klemens Pütz; Benno Lüthi; Andrea Raya Rey

    2013-01-01

    Worldwide marine protected areas (MPAs) have been designated to protect marine resources, including top predators such as seabirds. There is no conclusive information on whether protected areas can improve population trends of seabirds when these are further exploited as tourist attractions, an activity that has increased in past decades. Humboldt Penguins (Spheniscus humboldti) and Magellanic Penguins (S. magellanicus) breed sympatrically on Puñihuil Islets, two small coastal islands off the...

  14. Depth-to-water area polygons, isopleths showing mean annual runoff, 1912-1963, and water-level altitude contours for the Humboldt River Basin, Nevada

    Science.gov (United States)

    Welborn, Toby L.; Medina, Rose L.

    2017-01-01

    This USGS data release represents the 1:500,000-scale geospatial data for the following publication:Eakin, T.E., and Lamke, R.D., 1966, Hydrologic reconnaissance of the Humboldt River basin, Nevada: Nevada Department of Conservation and Natural Resources, Water Resources Bulletin 32, 107 p.The data set consists of 3 separate items:1. Depth-to-water area polygons2. Isopleths showing mean annual runoff, 1912-19633. Water-level altitude contours

  15. Steinpatrizen aus dem alten Kolumbien zur Vorbereitung des Gusses von Goldobjekten in verlorener Form Alexander von Humboldts „Kalendersteine“ der Muisca

    Directory of Open Access Journals (Sweden)

    Ursula Thiemer-Sachse

    2013-04-01

    Full Text Available Zusammenfassung Im vorspanischen Zentralkolumbien, vor allem in der Muisca-Kultur, wurden Hochreliefs auf Steinpatrizen zur Abformung von Wachsmatrizen für den Guss in verlorener Form benutzt, die Alexander von Humboldt irrtümlich für „Kalendersteine“ der Muisca hielt. Der wissenschaftsgeschichtliche Überblick beschäftigt sich mit den Ursachen dieses Irrtums und dessen Überwindung. Resumen En la región central de la Colombia prehispánica, especialmente en la cultura muisca, se utilizaron altos relieves en pátrices de piedra para moldear mátrices de cera para la fundición en cera perdida, erroneamente comprendidos por Alejandro de Humboldt como piedras de un “calendario” muisca. El conjunto de la historia de la ciencia trata de las causas y de la abnegación de esa idea. Abstract In pre-Hispanic central Colombia, especially in the region of the Muiscan culture, there were high reliefs on stone patrixes used for molding stencils (matrixes to found metals with the lost wax casting method. Alexander von Humboldt understood them as “calendar stones” of the Muisca. A survey of the history of science considers the reasons for and the surmounting of this erroneous idea.

  16. Alexander von Humboldt im Spiegel der spanischen Presse. Zur Wahrnehmung seiner Person und seiner Ideen während der ersten Hälfte des 19. Jahrhunderts

    Directory of Open Access Journals (Sweden)

    Sandra Rebok

    2002-04-01

    Full Text Available Article in German, Abstracts in English, Spanish and German.This article shows the image of Alexander von Humboldt that was created in the Spanish press, both in his professional career and his personal life, from his departure to America in 1799, until his death in 1859. This kind of analysis needs to look into two topics: firstly, the aspects of his personality, his life, his work and his ideas mentioned or emphasized in publications published in those years and secondly, the facets that are not shown; both aspects will form the image that the authors intended to project.In both cases this essay attempts to interpret the intentions that might have been behind the «focus» used by the different publications. As part of this analysis, special importance has been given to the importance attributed to Humboldt in relation to two important events: the Spanish American colonial movement for independence and the beginning of what is nowadays called «modernity».This phase of Spanish History coincides with a changing and complex political-social context, which explains the need to consider not only the moderate press published in Spain under absolutist censorship, but also to include the liberal press of the opposition leaders exiled in London, in order to be able to see the different perception that these papers offered of Alexander von Humboldt.

  17. 洪堡與馬太之對決 Showdown between Humboldt and Matthew

    Directory of Open Access Journals (Sweden)

    張源泉 Yuan-Chuan Chang

    2015-06-01

    has an urgent need for highly educated specialists, higher education has become an emerging industry driving national economic growth. In response to the current situation, Germany has begun making fundamental reforms to its system of higher education. Universities in modern Germany have long subscribed to the ideal of Humboldtian homogeneity. However, in recent years the German government has implemented various measures designed to increase competition, based on the principle that the lion’s share of educational resources should be devoted to those with the most distinguished, the so-called Matthew effect. Framing the current state of higher education in Germany as a showdown between Humboldt and Matthew, in this paper I use document analysis to present the traditional ideal of homogeneity, discuss the measures recently adopted for increasing competition, and to investigate how much influence these measures have had on distinguished students and researchers. Traditionally as the hallmark of the Germany higher education, the Humboldtian model has come into being by the following factors: the legal structure, the regulations preventing the hiring of former students as teaching staff, the non-competitive allocations of funding in higher education, and the way in which the higher education system developed. However, due to such recent measures as the Excellence Initiative, performance-based budget allocations, and the ranking of universities, in recent years German universities have begun to emphasize the importance of differentiation and specialization, while homogeneity has begun to fall by the wayside. While some may see these changes as an actual paradigm shift, due to the continuing influence of the traditional system, as well as the limited effect of the differentiation measures, it is unlikely that the German system of higher education will become as hierarchically structured as ivy-league universities in the United States; instead, it’s more likely that

  18. Scientific findings of Alexander von Humboldt's expedition into the Spanish-American Tropics (1799-1804 from a geographical point of view

    Directory of Open Access Journals (Sweden)

    Gerd Kohlhepp

    2005-06-01

    Full Text Available Alexander von Humboldt's expedition from 1799 till 1804 to the "equinoctial regions of the new world" led through Venezuela, Cuba, Colombia, Ecuador, Peru, and Mexico. In Europe an increased knowledge of the "New World" was connected with the privately funded journey, which served purely scientific purposes and had nothing to do with the exploration and exploitation of natural resources. Besides the research results, which were based on new measuring methods and the quantitative ascertainment of scientific basics, the journey also made possible detailed descriptions in matters of regional studies including social, socio-economic, political, and economic-geographic circumstances, which were based on empirical field studies. The expedition took place shortly before the political change in Latin America. Humboldt, who still experienced the feudal character of global economy based on slave labor in the colonies, vehemently criticized this economic structure - although he was a noble - and its unbearable social conditions. This is the reason why Humboldt is still admired in Latin America till this day. In Europe the scientific insights of his journey to the tropics and his innovative impulses in geog raphy as well as in many other disciplines brought him fame and lasting recognition as a universal scholar, who had crucial influence on the development of the sciences during the first half of the 19th century.A expedição científica de Alexander von Humboldt de 1799 a 1804 pela região equinocial do novo mundo foi realizada através dos países Venezuela, Cuba, Colômbia, Equador, Peru e México. Esta viagem, destinada à obtenção de novos conhecimentos aprofundados sobre o "novo mundo" para a Europa, foi financiada com meios particulares e tinha exclusivamente objetivos científicos e não a exploração de recursos naturais. Paralelamente aos resultados de pesquisa, fundamentados em novos métodos de medida e da elaboração quantitativa de

  19. First pathological report of parasitic gastric ulceration in Humboldt penguin(Spheniscus humboldtialong the coast of south-central Chile Primera descripción patológica de úlceras gástricas parasitarias en el pingüino de Humboldt (Spheniscus humboldti en la costa centro-sur de Chile

    Directory of Open Access Journals (Sweden)

    Francisco Yáñez

    2012-07-01

    Full Text Available This report offers a macroscopic and histological description of ulcerative gastric lesions in Humboldt penguins associated with the presence of Contracaecum pelagicum. Parasites of this genus have been isolated from different species of marine mammals and birds, including penguins, demonstrating its capacity to generate ulcerative lesions in the gastrointestinal tracts of many hosts. A bibliographic review revealed no publications on gastric ulceration by nematodes in Humboldt penguins. Studies carried out in Chile concerning gastrointestinal parasitism by nematodes of the Contracaecum genus in S. humboldti only established the parasite's taxonomy. This is the first pathological description of a parasitic ulcerative manifestation in the stomach of S. humboldti in the world. The Humboldt penguin is a vulnerable species. Therefore, this study is relevant as it offers a better understanding of the diseases that affect S. humboldti and facilitates the development of strategies intended to recover the population.El presente trabajo ofrece una descripción macroscópica e histológica de lesiones gástricas de tipo ulcerativas en el pingüino de Humboldt asociadas a la presencia de Contracaecum pelagicum. Parásitos del género Contracaecum han sido aislados de diferentes especies de mamíferos y aves marinas, incluyendo pingüinos, en gran parte del mundo, demostrando una gran capacidad de generar lesiones ulcerativas en un número importante de hospederos. La revisión bibliográfica reveló la ausencia de publicaciones relativas a cuadros ulcerativos gástricos causados por nemátodos en el pingüino de Humboldt. Los estudios realizados en Chile concernientes a parasitismo gastrointestinal por nemátodos del género Contracaecum en S. humboldti sólo han abordado aspectos taxonómicos. Esta publicación constituye la primera descripción patológica de un cuadro de ulceraciones gástricas parasitarias en el pingüino de Humboldt. S. humboldti est

  20. Ocular bacterial flora, tear production, and intraocular pressure in a captive flock of Humboldt penguins (Spheniscus humboldti).

    Science.gov (United States)

    Swinger, Robert L; Langan, Jennifer N; Hamor, Ralph

    2009-09-01

    The purpose of this study was to determine normal ocular surface bacterial flora, tear production, and intraocular pressure in a captive flock of Humboldt penguins, Spheniscus humboldti. Twenty-eight healthy penguins were studied and equally divided between fresh- and saltwater habitats. The population consisted of 15 female and 13 male penguins, ranging from 3-20 years of age. Following complete ophthalmic exam, 4 penguins with cataracts were removed from the study. Eight penguins from each habitat were randomly selected for ocular surface aerobic bacterial culture. Corynebacterium spp. and Staphylococcus spp. were the most common isolates. Twenty-five organisms consisting of 17 species, and 15 organisms consisting of 9 species, were identified in fresh- and saltwater groups, respectively. Tear production and intraocular pressures were evaluated on 24 penguins with normal ocular exams. The range and mean (+/- standard deviation) tear production, measured with the Schirmer tear test, was 1-12 mm/min and 6.45 mm/min +/- 2.9, respectively. The mean tear production for penguins housed in the freshwater habitat was greater (8.5 mm/min) than those in saltwater (4.8 mm/min). The range and mean (+/- standard deviation) intraocular pressure, measured by applanation tonometry using a Tono-Pen XL tonometer, was 10-27 mmHg and 20.36 mmHg +/- 4.1, respectively. This data should be utilized as a reliable resource for those involved in avian and zoo medicine.

  1. Alexander von Humboldt y la comparación de las esclavitudes en las Américas

    Directory of Open Access Journals (Sweden)

    Miachel Zeuske

    2005-10-01

    Full Text Available This article has two main aims. Both are motivated by the Humboldtian diary about Cuba in 1804, unknown until today (found by Ulrike Leitner in the Biblioteka Jagiellonska Kraków. First, the article will present the in fact discontinuous but coherent development of the Humboldtian image of slavery in Spanish America (which is culminating to some extent in the diary and builds in nuce what later will become the “Essay on the Island of Cuba”. Second, the article presents the sensation in history of science, that Humboldt starts to apply systematically main elements of scientific method of comparison on social, historical and socioeconomic themes of slavery, when he heard of the proclamation of the new state of “Haity” in Veracruz or Havana in 1804. These two findings (and the diary itself are changing profoundly our knowledge about Humboldt’s political relationship with two larger groups of the population of Spanish America (the parts of the Creole elite who were planning to found “a white republic”, following the French model and the very large group, or caste, of the “pardos” on the “Eve of the Independence Movement”.

  2. Odor-based recognition of familiar and related conspecifics: a first test conducted on captive Humboldt penguins (Spheniscus humboldti.

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    Heather R Coffin

    Full Text Available Studies of kin recognition in birds have largely focused on parent-offspring recognition using auditory or visual discrimination. Recent studies indicate that birds use odors during social and familial interactions and possibly for mate choice, suggesting olfactory cues may mediate kin recognition as well. Here, we show that Humboldt penguins (Spheniscus humboldti, a natally philopatric species with lifetime monogamy, discriminate between familiar and unfamiliar non-kin odors (using prior association and between unfamiliar kin and non-kin odors (using phenotype matching. Penguins preferred familiar non-kin odors, which may be associated with the recognition of nest mates and colony mates and with locating burrows at night after foraging. In tests of kin recognition, penguins preferred unfamiliar non-kin odors. Penguins may have perceived non-kin odors as novel because they did not match the birds' recognition templates. Phenotype matching is likely the primary mechanism for kin recognition within the colony to avoid inbreeding. To our knowledge this is the first study to provide evidence of odor-based kin discrimination in a bird.

  3. Chromogenic behaviors of the Humboldt squid (Dosidicus gigas) studied in situ with an animal-borne video package.

    Science.gov (United States)

    Rosen, Hannah; Gilly, William; Bell, Lauren; Abernathy, Kyler; Marshall, Greg

    2015-01-15

    Dosidicus gigas (Humboldt or jumbo flying squid) is an economically and ecologically influential species, yet little is known about its natural behaviors because of difficulties in studying this active predator in its oceanic environment. By using an animal-borne video package, National Geographic's Crittercam, we were able to observe natural behaviors in free-swimming D. gigas in the Gulf of California with a focus on color-generating (chromogenic) behaviors. We documented two dynamic displays without artificial lighting at depths of up to 70 m. One dynamic pattern, termed 'flashing' is characterized by a global oscillation (2-4 Hz) of body color between white and red. Flashing was almost always observed when other squid were visible in the video frame, and this behavior presumably represents intraspecific signaling. Amplitude and frequency of flashing can be modulated, and the phase relationship with another squid can also be rapidly altered. Another dynamic display termed 'flickering' was observed whenever flashing was not occurring. This behavior is characterized by irregular wave-like activity in neighboring patches of chromatophores, and the resulting patterns mimic reflections of down-welled light in the water column, suggesting that this behavior may provide a dynamic type of camouflage. Rapid and global pauses in flickering, often before a flashing episode, indicate that flickering is under inhibitory neural control. Although flashing and flickering have not been described in other squid, functional similarities are evident with other species.

  4. The Landcover Impact on the Aspect/Slope Accuracy Dependence of the SRTM-1 Elevation Data for the Humboldt Range

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    George C. Miliaresis

    2008-05-01

    Full Text Available The U.S. National Landcover Dataset (NLCD and the U.S National Elevation Dataset (NED (bare earth elevations were used in an attempt to assess to what extent the directional and slope dependency of the Shuttle Radar Topography Mission (SRTM finished digital elevation model is affected by landcover. Four landcover classes: forest, shrubs, grass and snow cover, were included in the study area (Humboldt Range in NW portion of Nevada, USA. Statistics, rose diagrams, and frequency distributions of the elevation differences (NED-SRTM per landcover class per geographic direction were used. The decomposition of elevation differences on the basis of aspect and slope terrain classes identifies a over-estimation of elevation by the SRTM instrument along E, NE and N directions (negative elevation difference that decreases linearly with slope while b underestimation is evident towards W, SW and S directions (positive elevation difference increasing with slope. The aspect/slope/landcover elevation differences modelling overcome the systematic errors evident in the SRTM dataset and revealed vegetation height information and the snow penetration capability of the SRTM instrument. The linear regression lines per landcover class might provide means of correcting the systematic error (aspect/slope dependency evident in SRTM dataset.

  5. Modeling the Impacts of El Nino Events on Nutrients and Productivity in the Northern Humboldt Current System

    Science.gov (United States)

    Espinoza Morriberon, D.; Echevin, V.; Colas, F.; Tam, J.; Ledesma, J. A.; Vasquez, L.

    2016-12-01

    The Humboldt Current System is one of the most important coastal upwelling system with an intense oxygen minimum zone, a high productivity and an important fishery activity. Every 2 to 7 years, ENSO events profoundly alter the environmental landscape of the system for several months. The ENSO warm phase, El Nino, is characterized by high sea surface temperature and low nutrient and chlorophyll concentration. A regional coupled physical-biogeochemical model is used to describe and understand the physical-biogeochemical coupled processes involved in the decrease of phytoplankton during El Nino, with a particular focus on the strong events. Comparison between observational data from surveys and satellites with model outputs show that our model configuration is able to reproduce the inter-annual dynamic variability off the Peruvian coast and the impacts of El Niño events. Temperature and sea level anomalies increase, while chlorophyll and nutrients concentration decrease. Passages of strong coastal-trapped waves during El Niño deepen both the thermocline and the nutricline and chlorophyll concentrations decrease. The upwelling intensity weakens because of a zonal geostrophic current flowing toward the coast. We show that the depth of upwelled waters does not change considerably, however their nitrate concentration decreases dramatically limiting the phytoplankton growth. We also illustrate that eddies also play an important role in nitrate loss during El Nino by increasing the offshore subduction.

  6. Weight-length relationship, condition factor and blood parameters of farmed Cichla temensis Humboldt, 1821 (Cichlidae in central Amazon

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    Marcos Tavares-Dias

    Full Text Available Farming of native carnivore fish species has drawn attention due to their promising use in aquaculture. Among these species, tucunaré of the genus Cichla stand out, them being of high economical interest for sport fishing and Amazon's industry of ornamental fish. The present study describes the weight-length relationship (WLR, relative condition factor (Kn, red blood cell parameters, thrombocytes and leukocytes count of Cichla temensis Humboldt, 1821, farmed in central Amazon. Fish that underwent food training during fingerling culture received extruded ration containing 45% of crude protein during fattening, and had Kn with values from 0.925-1.199, which indicated good health condition during the culture. The equation obtained from the WLR was W = 0.0073Lt3.1435, indicating an isometric growth, which is the desirable for fish of fish farm. Red blood cell counts, total thrombocyte and leukocyte counts, hematocrit, hemoglobin concentration, mean corpuscular volume (MCV, concentration of mean corpuscular hemoglobin (MCHC, lymphocytes, monocytes and neutrophils had intra-specific variation. A significant (p<0.001 positive correlation of the red blood cells number with the hemoglobin concentration and hematocrit was found. These are the first sets of blood parameters for C. temensis and could be used as reference for comparison in further studies to evaluate the health status of this fish in different environments, because assessment of these parameters may be used as quick tool for diagnosing diseases, stress and malnutrition.

  7. "Ungeheure Tiefe des Denkens, unerreichbarer Scharfblick und die seltenste Schnelligkeit der Kombination" Zur Wahl Alexander von Humboldts in die Königliche Akademie der Wissenschaften zu Berlin vor 200 Jahren

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    Herbert Pieper

    2000-10-01

    Full Text Available Article in German, Abstracts in English and Spanish. On the 17th of July 1800 Alexander von Humboldt was elected as an extraordinary member of the Prussian Académie royale des sciences et belles-lettres at Berlin. The paper first deals with Humboldt’s scientific activities before his election and then goes into detail as far as his integration into the work of the Academy is concerned. Humboldt was elected as a chimiste célèbre, but as a member of the Academy he did not work as a chemist. When Humboldt proposed in 1837 to classify the members of each class in special fields, he chose for himself the field of "mineralogy-geology".

  8. Le politique, opérateur de la construction des savoirs géographiques modernes: l'exemple des voyages d'Alexander von Humboldt

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    Laura Péaud

    2011-10-01

    Full Text Available RésuméA la charnière du XVIIIème et du XIXème siècle, Alexander von Humboldt réalise une série de voyages scientifiques et géographiques en Europe, en Amérique et en Asie. Connus en grande partie par sa très riche correspondance, ces voyages sont tous marqués par la présence et l’intervention d’acteurs du monde politique européen. Par leur soutien financier, matériel et moral, ainsi que par leur délimitation spatiale, temporelle voire thématique des objets des expéditions, ceux-ci structurent pratiquement et intellectuellement le déroulement des expéditions humboldtiennes.Aux alentours du moment 1800, la géographie se trouve alors engagée dans un mouvement de construction disciplinaire, questionnant ses objets, ses méthodes et ses pratiques. Inséré dans ce processus, le voyage constitue un enjeu identitaire fort de l’élaboration et de la définition des savoirs géographiques modernes. La participation des acteurs politiques dans les voyages interroge leur rôle d’opérateurs de la fabrique scientifique. A partir de l’exemple humboldtien, dans une optique d’histoire et d’épistémologie de la géographie, cet article propose d’engager une analyse relationnelle du couple géographie/politique.ZusammenfassungZwischen 1799 und 1829 unternahm Alexander von Humboldt eine Reihe wissenschaftlicher Reisen durch Europa, Amerika und Asien. Nicht zuletzt dank der überlieferten Korrespondenz sind die Reisen sehr gut dokumentiert: Politische Akteure spielten eine große Rolle bei der Planung und Umsetzung der Reisen. So unterstützten sie Humboldts Reisen sowohl mit materiellen als auch ideellen Mitteln. Mitunter nahmen sie Einfluss auf Routen sowie auf Dauer und thematische Ausrichtung der Reisen. Dies strukturierte die Humboldt’schen Reisen intellektuell und in ihrer praktischen Umsetzung.Um 1800 bildete sich die Geographie zur wissenschaftlichen Disziplin heraus, ihre Forschungsgegenstände, Methoden und

  9. Population Trends of a Mixed-Species Colony of Humboldt and Magellanic Penguins in Southern Chile after Establishing a Protected Area

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    Ronnie Reyes-Arriagada

    2013-12-01

    Full Text Available Worldwide marine protected areas (MPAs have been designated to protect marine resources, including top predators such as seabirds. There is no conclusive information on whether protected areas can improve population trends of seabirds when these are further exploited as tourist attractions, an activity that has increased in past decades. Humboldt Penguins (Spheniscus humboldti and Magellanic Penguins (S. magellanicus breed sympatrically on Puñihuil Islets, two small coastal islands off the west coast of Chiloé Island (41° S in southern Chile that are subject to exploitation for tourism. Our goal was to compare the population size of the mixed colony of Humboldt and Magellanic Penguins before and after protection from unregulated tourism and freely roaming goats in 1997. For this purpose, two censuses were conducted in 2004 and 2008, and the numbers compared with those obtained in 1997 by other authors. The proportion of occupied, unoccupied, and collapsed/flooded burrows changed between years; there were 68% and 34% fewer collapsed burrows in 2004 and 2008, respectively, than in 1997. For the total number of burrows of both species, we counted 48% and 63% more burrows in 2004 and 2008, respectively, than in 1997. We counted 13% more burrows of Humboldt Penguins in 2008 than in 1997, and for Magellanic Penguins, we estimated a 64% increase in burrows in 2008. Presumably, this was as a result of habitat improvement attributable to the exclusion of tourists and the removal of goats from the islets. Although tourist visits to the islets are prohibited, tourism activities around the colonies are prevalent and need to be taken into account to promote appropriate management.

  10. Assessment of trace metals and porphyrins in excreta of Humboldt penguins (Spheniscus humboldti) in different locations of the northern coast of Chile.

    Science.gov (United States)

    Celis, José E; Espejo, Winfred; González-Acuña, Daniel; Jara, Solange; Barra, Ricardo

    2014-03-01

    To add data on trace metal contamination of Humboldt penguins in the South Pacific, levels of trace metals (As, Hg, Pb, Cu, Zn, and Cd) and porphyrins (copro-, uro-, and proto-) in excreta of Humboldt penguins that inhabit some important nesting sites on the northern coast of Chile were determined. Fresh excreta were collected on Pan de Azúcar Island, Chañaral Island, and Cachagua Island, from December 2011 to January 2012. Concentration of metals was determined by flame atomic absorption spectrophotometry, whereas porphyrins levels were measured by fluorimetric analysis. Concentrations (dry weight) of Cu (199.67 μg g(-1)), As (7.85 μg g(-1)), and Pb (12.78 μg g(-1)) were higher (p ≤ 0.05) in Cachagua Island. Colonies from Pan de Azúcar Island showed the highest levels of Hg (0.76 μg g(-1)), Cd (47.70 μg g(-1)), and Zn (487.10 μg g(-1)). Samples from Cachagua Island showed the highest (p ≤ 0.05) levels of copro- (2.16 nmol g(-1)), uro- (2.20 nmol g(-1)), and protoporphyrins (2.23 nmol g(-1)). There was a positive correlation between the metals As, Pb, and Cu with uro-, copro-, and protoporphyrins. The results indicated that penguin colonies from Cachagua Island are more exposed to metal contamination than penguin colonies from Pan de Azúcar and Chañaral Islands, thus being more likely to develop certain diseases caused by contamination with metals. Considering biomagnification, the metals detected in the excreta of Humboldt penguins can be a source of contamination from marine environments to terrestrial ecosystems, which could also affect other living organisms.

  11. "Es ist meine Art, einen und denselben Gegenstand zu verfolgen, bis ich ihn aufgeklärt habe" Äußerungen Alexander von Humboldts über sich selbst

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    Ingo Schwarz

    2000-10-01

    Full Text Available Article in German, Abstracts in English and Spanish. Alexander von Humboldt has been characterized as the second, scientific discoverer of the New World, as the last universal scientist, Aristotle of modern times, etc. However, more or less hidden in his correspondence we find certain self-characterizations which are not that well-known. Some of them are quoted and discussed in the paper. Thus, an attempt is made to answer the question why Humboldt liked to call himself "the old man from the mountains", and whether or not he found it appropriate to be called "Aristotle of our age."

  12. Analytical results and sample locations of reanalyzed NURE stream-sediment and soil samples for the Humboldt River basin mineral-environmental assessment, northern Nevada

    Science.gov (United States)

    Folger, H. W.

    2000-01-01

    The U.S. Geological Survey (USGS), in cooperation with the Bureau of Land Management (BLM), began a study in 1996 to describe to the geochemistry of the Humboldt River Basin. The principal sample media evaluated are stream-sediment and soil samples retrieved from the National Uranium Resource Evaluation (NURE) archives located in Denver, Colorado. Samples were retrieved from the Wells, McDermitt, Vya, Lovelock, Winnemucca, Elko, Ely, Millett, Reno, and Tonopah 1? x 2? quadrangles in northern Nevada. The data are appropriate for large-scale reconnaissance resource evaluations and landscape geochemical-geoenvironmental evaluations. The analytical results are presented in this report.

  13. Plan para el fomento del uso de las Tecnologías de Información y Comunicación en el Colegio Humboldt

    OpenAIRE

    Zúñiga-Martínez, Carlos Humberto

    2007-01-01

    Tesis de maestría -- Universidad de Costa. Posgrado en Administración y Dirección de Empresas. Maestría Profesional en Administración y Dirección de Empresas con énfasis en Gerencia, 2007 El objetivo general del trabajo es crear un plan de capacitación en tecnologías de la información y comunicaciones para el personal del Colegio Humboldt, con el fin de que el recurso humano de la institución, cuente con los conocimientos necesarios para hacerle frente a los retos que plantea la sociedad d...

  14. VARIABILIDAD TEMPORAL DE LA SURGENCIA Y LA ZMO, Y SU EFECTO SOBRE LA PRODUCTIVIDAD BIOLOGICA EN UN SISTEMA COSTERO DEL NORTE DE LA CORRIENTE DE HUMBOLDT

    OpenAIRE

    GUIÑEZ ARAYA, MARCOS IGNACIO

    2012-01-01

    Mejillones del Sur (23ºS), es una bahía orientada hacia el norte y ubicada a orillas del desierto más seco del planeta (Atacama). Esta bahía es parte del centro de surgencia de Punta Angamos, localizado en la zona norte del sistema de corrientes de Humboldt. En la bahía de Mejillones se han registrado valores de producción primaria media de 3170 mg C m-2 d-1 y una abundante diversidad fitoplanctónica. En esta bahía se han realizado una serie de estudios sobre la composición y estructura de...

  15. Shallow seismic reflection profiling over a Mylonitic Shear Zone, Ruby Mountains-East Humboldt Range Metamorphic Core Complex, NE Nevada

    Science.gov (United States)

    Hawman, Robert B.; Ahmed, Hishameldin O.

    Seismic reflection profiling carried out with a sledgehammer source has imaged Tertiary extensional structures over a depth range of 45-500 m within lower plate rocks of the Ruby Mountains-East Humboldt Range metamorphic core complex. The 400-m CMP profile straddles an exposed contact between tectonic slices of dolomitic marble and metaquartzite emplaced by low-angle ductile-brittle normal faulting. Subhorizontal reflections from layering within the tectonic slices give way at 160 ms (160-220 m depth) to reflections that dip 15-45° to the east, in contrast with dips indicated in a poorly imaged segment of a coincident regional seismic line but in agreement with dips of foliation mapped for nearby up-plunge exposures of a late Proterozoic - early Cambrian sequence of metaquartzites, marbles, schists, and granitic rocks that forms the bulk of the underlying shear zone. Differences with the regional profile are attributed to the higher frequencies (30-100 Hz) generated by the smaller hammer source and the enhanced lateral resolution provided by the straighter profile and much smaller shot-receiver offsets (46-157 m) contributing to the stack for each CMP. The results suggest that the near-surface, east-dipping component of the anastomozing shear zone extends at least 2 km farther east than previously interpreted. Rough estimates of interval velocities (1500-4500 m/s) inferred from stacking velocities are consistent with velocities of mylonitic rocks measured perpendicular to foliation at low confining pressures when the effects of macroscopic fractures and joints are taken into account. Peaks in amplitude spectra of stacked traces suggest long-wavelength components of layering resolved at scales from 5-8 m (depth: 50 m) to 15-25 m (depth: 500 m).

  16. On the effects of ENSO on ocean biogeochemistry in the Northern Humboldt Current System (NHCS): A modeling study

    Science.gov (United States)

    Mogollón, Rodrigo; Calil, Paulo H. R.

    2017-08-01

    The response of the ocean biogeochemistry to intense El Niño Southern Oscillation (ENSO) events in the Northern Humboldt Current System (NHCS) is assessed with an eddy-resolving coupled physical-biogeochemical model. El Niño (EN) 1997-1998 and La Niña (LN) 1999-2000 are well reproduced, inducing large spatial and temporal variability of biogeochemical properties at three coastal upwelling centers along the Peruvian coast (Chimbote 9.4°S, Callao 12.1°S, and Pisco 14°S). During EN, the upper limit of the Oxygen Minimum Zone (OMZ) experiences an offshore displacement of, approximately, 60 km and a deepening of, approximately, 150 m when compared to neutral-ENSO conditions, thus ventilating the upper 100 m of the water column. In contrast, during LN, the OMZ tongue outcrops over the continental shelf deoxygenating the water column at all locations. During LN, at the southernmost location, enhanced Eddy Kinetic Energy (EKE) induces a leaking of the coastal nutrient inventory by horizontally advecting nitrogen from the nearshore region into the oligotrophic ocean. This leads to a reduction of biological production in the coastal zone. During EN, nitrification is an order of magnitude larger than denitrification in supplying the nitrite coastal pool. During LN peak, nitrification is reduced by 80%, while denitrification becomes equally important, evidencing a coupling between these two oxygen-dependent processes. The nitrogen removal due to suboxic activity is mostly controlled by the Anaerobic Ammonium Oxidation (Anammox) in the southern domain during neutral-ENSO conditions. Our results show that during EN, denitrification contributes with 60% of the total nitrogen removal. In contrast, Anammox contributes with 70% during LN. The outgassing of nitrous oxide (N2O), an intermediate product of denitrification, is reduced and enhanced during EN and LN, respectively, and it is strongly modulated by the spatiotemporal variability of oxygen in the environment.

  17. Geosciences Information for Teachers (GIFT) Workshops held in Conjunction with Alexander von Humboldt (AvH) EGU Conferences

    Science.gov (United States)

    Laj, Carlo; Cifelli, Francesca

    2015-04-01

    The Alexander von Humboldt Conference Series of the European Geosciences Union are a series of meetings held outside of Europe, in particular in South America, Africa or Asia, on selected topics of geosciences with a socio-economic impact for regions on these continents, jointly organised with the scientists and their institutes and the institutions of these regions. Given the increasing success of the GIFT workshops held in conjunction with the General Assemblies, since 2010 EGU has also developed a series of GIFT workshops held in conjunction with AvH conferences. Associated GIFT workshops were held in Merida, Yucatan, on the theme of Climate Change, Natural Hazards and Societies (March 2010), then in Penang, Malaysia (June 2011) on the theme of Ocean Acidification, in November 2012 in Cusco (Peru) on the theme of Natural Disasters, Global Change and the Preservation of World Heritage Sites, finally in Istanbul (March 2014) on "High Impact Natural Hazards Related to the Euro-Mediterranean Region. The next GIFT workshop is already planned for October 2015 in Adis Ababa (Ethiopia) on the theme "Water". In each case, the GIFT workshop was held on the last two days of the AvH conference and reunited 40-45 teachers from the nation where the AvH was held. Keynote speakers from AvH were speakers to the GIFT workshops which also included hands-on activities animated by sciences educators. These GIFT workshops represented the first workshops specifically aimed at teachers held in the country, and therefore represents a significant Earth Sciences contribution to secondary education in non European countries.

  18. Dolores, enfermedades y metáforas poéticas del cuerpo en Alejandro de Humboldt

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    Lubrich, Oliver

    2004-08-01

    Full Text Available Alexander von Humboldt’s account of his American voyage (1799-1804 functionalises the body in the colonies. The traveller’s body endures strains, pains, dangers, diseases, selfexperimentation and drugs; experiences that are compensated by therapeutical effects and assuaged by acclimatisation. America is imagined to be a body which, at first glance, appears destined for rape, while the text subtly codes it as a candidate for emancipation. The indigenous bodies seem to be ‘strange’, yet a series of transcultural performances subverts the difference between European and American physicality. Over the course of the voyage, Humboldt’s colonial poetics of the body are altered.

    La relación del viaje americano de Alejandro de Humboldt (1799-1804 describe las funciones del cuerpo del viajero en contacto con las colonias: el cuerpo europeo padece fatigas, dolores, peligros y enfermedades, se convierte en objeto de experimentación y de ensayos con drogas; efectos que se atenúan gracias al proceso de aclimatación. América es imaginada como un cuerpo que a primera vista aparece como objeto de explotación, mientras el texto lo codifica como sujeto de emancipación. Los cuerpos de los indígenas parecen ser exóticos; sin embargo, la diferencia entre los cuerpos europeos y americanos es puesta en duda de manera performática. En el transcurso del viaje la poética del cuerpo colonial se ve alterada.

  19. Biomass "Green" Power Vs. Coal "Traditional" Power: Who is the Largest Emitter in Humboldt County and How Should Regulations be Addressed?

    Science.gov (United States)

    Zurawski, A. M.

    2016-12-01

    The objective of this research is to study how emissions from a fossil fuel power plant compare to emissions from a biomass power plant, and how these results can be used to improve current air-quality regulations. Outdoor air quality transcends national and political boundaries. Air pollution monitoring is essential to maintaining quality of life for humans and ecosystems. Due to anthropogenic disturbances (primarily related to burning of fossil fuels), air- quality management has become a priority on a long list of environmental issues. Quantifying and monitoring the largest emitters of greenhouse gases and toxic pollutants is crucial to the creation and enforcement of appropriate environmental protection regulations. Emissions data were collected from January 2010 to January 2016 from sensors installed close to a biomass power plant, and sensors installed close to a fossil fuel and natural gas power plant, in Humboldt County, California. In Humboldt County, where air quality serves as a baseline of air pollution in the United States, data showed that the "green" biomass power plant emitted higher levels of particulate matter compared to the fossil fuel power plant. Additionally, the biomass power plant showed levels of CO2, NOx, and SO2 emissions that suggest its place as a "green" power source should be reconsidered. Our research suggests that regulations need to be reconsidered given the potential for high pollutant emissions from biomass plants.

  20. Observaciones ecológicas sobre el pez capitán, Eremophilus mutisii Humboldt 1805 (Pisces : Trichomycteridae en los departamentos de Cundinamarca y Boyacá, Colombia

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    Sarmiento R. Néstor

    1989-06-01

    Full Text Available Information of the population for several Eremophilus muusu Humboldt 1805 were provided at the Cundinamarca and Boyacá regíons. The main ínformatíon were concerning the habitat, dístrtbunon of altitude. water temperature, oxygen tolerance, sizes and relation of weight/lenght. The fertíltty and relation of eggs number, weíght of the gonade as well the relation of reproduction index wight of testicle, the complete weíght were
    also gíved. On the other side conditions factor for young and adults, sex for male and female in different time of spawning were also provided.Para varias poblaciones de EremophUus mutisii Humboldt 1805. en los Departamentos de Cundinamarca y Boyacá, se proporciona información acerca del habítat, la distribución altitudinal. la temperatura del agua, la tolerancia de oxigeno. las tallas y relaciones de peso y longitud la fecundidad y la relación del número de huevos y peso de la gónada. así como las
    relaciones de los índices de reproducción, el peso del t-süculo y el peso total del ejemplar, el factor de condición para juveniles y adultos, las tallas por sexo y épocas de desove.

  1. Frontale Präsenz - Zu einem unbekannten Porträt Alexander von Humboldts im Besitz des französischen Conseil d’État

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    David Blankenstein

    2015-12-01

    Full Text Available Zusammenfassung Ein bislang unveröffentlichtes Porträt Alexander von Humboldts aus der Hand Frédéric d’Houdetots, ein Schüler des Malers Jacques-Louis David, bereichert die Humboldt-Ikonographie um eine Darstellung, die den berühmten Reisenden und Gelehrten als jungen Mann, wenige Jahre nach seiner Rückkehr aus Amerika zeigt – beeindruckend lebendig, fokussiert und präsent. Das 1807 während der Franzosenzeit in Berlin entstandene Porträt verweist als Teil eines im Conseil d’État in Paris aufbewahrten Porträt-Albums auf die Zirkel und Beziehungen, die sich in der besetzten preußischen Hauptstadt zwischen Besatzern, jüdischen Salonkreisen und der wissenschaftlichen Community gebildet haben, ein Nährboden für den transnationalen Austausch von Vertretern einer jungen und vitalen Generation, die sich als echte Europäer verstanden. Résumé Un portrait jusqu’à présent inédit d’Alexander von Humboldt par Frédéric d’Houdetot, élève de Jacques-Louis David, enrichit l’iconographie humboldtienne d’une effigie qui donne à voir le célèbre voyageur et érudit en jeune homme, quelques années seulement après son retour des Amériques – un portrait qui frappe par sa vitalité, sa concentration et la forte présence du savant. Dessiné dans le contexte de l’occupation de Berlin par l’armée napoléonienne et conservé au Conseil d’Etat à Paris, ce portrait est issu d’un album réunissant un grand nombre d’autres portraits de Berlinois des années 1800, qui témoigne des relations étroites que l’occupant put entretenir avec les représentants de l’élite juifs de la ville et la communauté scientifique, dans une dynamique propice aux échanges transnationaux d’une génération jeune, vitale et profondément européenne. Summary A previously unreleased portrait of Alexander von Humboldt, drawn by Jacques-Louis David’s disciple Frédéric d’Houdetot, adds a lively, focused and astonishingly present

  2. Ground-water use, locations of production wells, and areas irrigated using ground water in 1998, middle Humboldt River basin, north-central Nevada

    Science.gov (United States)

    Plume, Russell W.

    2003-01-01

    In 1998, ground water was being pumped from about 420 production wells in the middle Humboldt River Basin for a variety of uses. Principal uses were for agriculture, industry, mining, municipal, and power plant purposes. This report presents a compilation of the number and types of production wells, areas irrigated by ground water, and ground-water use in 14 hydrographic areas of the middle Humboldt River Basin in 1998. Annual pumping records for production wells usually are reported to the Nevada Division of Water Resources. However, operators of irrigation wells are not consistently required to report annual pumpage. Daily power-consumption and pump-discharge rates measured at 20 wells during the 1998 irrigation season and total power use at each well were used to estimate the amount of water, in feet of depth, applied to 20 alfalfa fields. These fields include about 10 percent of the total area, 36,700 acres, irrigated with ground water in the middle Humboldt River Basin. In 1998 an average of 2.0 feet of water was applied to 14 fields irrigated using center-pivot sprinkler systems, and an average of 2.6 feet of water was applied to 6 fields irrigated using wheel-line sprinkler systems. A similar approach was used to estimate the amount of water pumped at three wells using pumps powered by diesel engines. The two fields served by these three wells received 3.9 feet of water by flood irrigation during the 1998 irrigation season. The amount of water applied to the fields irrigated by center-pivot and wheel-line irrigation systems during the 1998 irrigation season was less than what would have been applied during a typical irrigation season because late winter and spring precipitation exceeded long-term monthly averages by as much as four times. As a result, the health of crops was affected by over-saturated soils, and most irrigation wells were only used sporadically in the first part of the irrigation season. Power consumption at 19 of the 20 wells in the 1994

  3. Textual Differences in Alexander von Humboldt’s Essai politique sur l'île de Cuba. An editorial commentary on the first volume of the „Humboldt in English“ (HiE book series

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    Tobias Kraft

    2012-10-01

    Full Text Available Zusammenfassung Die vorliegende Studie basiert auf einem Editionsbericht, der 2009 im Rahmen der Konferenz „Alexander von Humboldt and the Hemisphere“ an der Vanderbilt University (Nashville, TN vorgestellt wurde. Die für diese Publikation weiter entwickelte Untersuchung verdeutlicht die Textgenese von Humboldts Essai politique sur l’île de Cuba auf der Basis eines Textvergleichs zwischen allen drei „Originalquellen“ des Texts. Der hier in seinen Ergebnissen vorgestellte Textvergleich ist Teil des Editionsprojektes „Humboldt in English“ (HiE, bei dem sich ein US-deutsches Editorenteam seit 2007 zum Ziel gesetzt haben, kritische Neuübersetzungen von drei wichtigen Schriften aus Humboldts „Opus Americanum“ anzufertigen (s.a. Fußnote. Der Textvergleich des Essai politique sur l’île de Cuba bildete die Textgrundlage für den ersten Band der HiE-Reihe, den 2011 bei Chicago University Press erschienenen The Political Essay on the Island of Cuba (hg. von Vera M. Kutzinski und Ottmar Ette. Summary This study is based on an editorial report, which was presented at the 2009 working conference „Alexander von Humboldt and the Hemisphere“ at Vanderbilt University (Nashville, TN. It demonstrates the textual genesis of Humboldt’s writings on Cuba through examples, which were obtained from a detailed text comparison of the three existing „original“ versions of Humboldt’s Essai politique sur l’île de Cuba. The collation was part of a larger strategy to regain philological ground for the „Humboldt in English“ (HiE project. Since 2007 and funded with grants from the National Endowment for the Humanities, the Alexander von Humboldt-Foundation, and the Gerda Henkel Foundation, the US-German research team behind HiE has been working on new and unabridged translations and critical editions of three of Humboldt’s most significant texts from his American oeuvre.[1] The following observations will outline the most important

  4. The Ghost in the Shell : Local and Remote Forcing of a Coastal Bivalve Inhabiting the Humboldt Current System

    Science.gov (United States)

    Gosselin, M.

    2014-12-01

    The external skeleton of mollusc bivalves, the shell, can furnish a recording of the environmental changes to which the organisms and population are exposed during their lives. The bivalve's growth is subjected to the thermocline variability; which itself is affected by environmental and climatic events. A highly variable environment such as the Humboldt current system (HCS) requires tools capable of recording its variations over a wide range of periodicities. Upwelling, Coastal trapped waves (CTWs), El Niño Southern Oscillation, and Pacific decadal oscillation events contribute to this environmental and climatic variability. The thermocline depth is modified by these different events at their own time-scales (respectively, daily to weekly, intraseasonally, interseasonally to interannually, and on a decadal scale). The thermocline variation translates into changes in Sea surface temperature (SST) and in the qualitative and quantitative productivity of phytoplankton. These two environmental factors are critical to bivalve growth.The sclerochronological (increment width) and sclerochemical (δ18O and δ13C) study consisted on the analysis of the Chilean bivalve Eurhomalea rufa, collected in 2005, as a recorder of the environmental HCS variability. The calibration step identified daily, monthly, and annual marks in the growth patterns of E. rufa. The results confirmed that the thermocline variability mainly drives the bivalve's activity and led to the establishment of a paleotemperature equation. Moreover, periodogram and wavelet analyses exposed the respective impacts of each environmental event from daily to interannual periodicities. In particular, the growth pattern of E. rufa follows SST variability at an intraseasonal periodicity (~ 60 days) which is remotely induced by CTWs. CTWs are generated by Kelvin oceanic waves, which are formed primarily by eastward equatorial Pacific winds (e.g. Shaffer et al. 1997; Montecino and Lange 2009).Sclerochronological studies

  5. How our changing research arena can inspire innovative environmental research in developing countries (Alexander von Humboldt Medal Lecture)

    Science.gov (United States)

    Bouma, Johan

    2017-04-01

    Alexander von Humboldt was a true pioneer by engagingly articulating an ecosystem-wide vision on environmental issues and research, connecting and moving beyond disciplinary boundaries. Focusing here on soil science as an important discipline within the geosciences, the work of our group has acted in the spirit of this approach by focusing on interdisciplinary systems research in different developing countries in close interaction with stakeholders, based on soil processes in a dynamic landscape context. But recent developments of internet and social media are drastically changing relations between science and society all over the world. Scientists have to continuously struggle to keep their "societal license to research". Researchers in so-called developed countries would be well advised to communicate lessons learned to scientists in developing countries allowing them to leapfrog and avoid making time- consuming mistakes adhering to yesterday's practices. Specifically, attention should be paid to: (i) more continuing interaction with stakeholders when planning and executing research. This takes time that should be allocated in research projects. ; (ii) the quality of a limited number of key papers rather than on the total number of published and cited scientific papers, when judging researchers; (iii) defining new research on the basis of proven inadequacy of existing techniques and methods, realizing that "new" is not necessarily "better" and that available research methods and procedures can solve many current environmental problems; (iv) showing the value of the scientific approach that does not articulate: "yet another opinion" but is essential to face the major environmental challenges of the 21th century. (v) demonstrate the crucial importance of interdisciplinary ecosystem research and innovation when addressing the seventeen UN Sustainable Developments Goals (SDG's) that are attractive now as a focus for the scientific effort in land-related research. (vi

  6. Temperature profile and other data collected using bottle and CTD casts from the ALE ANDRO DE HUMBOLDT from the Coastal Waters of California during the California Cooperative Fisheries Investigation (CALCOFI) project, 27 January 1972 to 13 December 1972 (NODC Accession 7501040)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Oceanographic Station Data, temperature, and other data were collected using CTD and bottle casts from ALE ANDRO DE HUMBOLDT in the Coastal Waters of California from...

  7. „Egipcios por doquier“. Alejandro de Humboldt y su visión ‘orientalista’ de América

    Directory of Open Access Journals (Sweden)

    Oliver Lubrich

    2002-10-01

    Full Text Available Article in German, Abstracts in English, Spanish and German.Alexander von Humboldt‘s „Orientalist gaze“ is a simple term for a complex mode of perception and description in his American travelogue. Humboldt „Orientalizes“ America in numerous stereotypical metaphors, scientific comparisons and colonial economic analogies, and also perpetuates a philological Orientalism as analyzed by Edward Said. Gradually, however, self-reflexive critiques and a series of subtle inversions erode binary oppositions and colonial constructions. Humboldt‘s text first employs and then deconstructs Eurocentrist patterns. It symptomatizes and strategically destabilizes the concept of the „Orient“ as a paradigm of cultural difference and Orientalism as an imperial discourse.

  8. The Franciscans in Cathay: memory of men and places. A Contribution for the genealogy of geographical knowledge of Alexander von Humboldt

    Directory of Open Access Journals (Sweden)

    Giuseppe Buffon

    2015-05-01

    Full Text Available Summary The study analyzes the process that leads to the elaboration of the thesis of a continuity between the Medieval Asia mission and the New World mission. This effort, undertaken by the Catholic historiography of the mission during the XIX century, is the result of the impulse provided by Alexander von Humboldt’s studies about the discovery of America (Examen critique. The data about the geography of Asia collected by the missionaries-travelers working in the territory between Karakorum and Khanbalik during the XIII e XIV century reaches Christopher Colombus with the mediation of Roger Bacon, whom Humboldt himself esteems as a true cultural mediator. The conclusion of the article tries to identify reasons and modalities of the secularization of the missionary concept, i.e. the shift from the ideal of the propagation of the Christian message to a prevailing interest for cartography and topography, transformations arranged by a late medieval historiography that introduces into martyrolagia the loca toponomastica. Sommario Lo studio analizza il processo che conduce all’elaborazione della tesi di una continuità tra missione asiatica medievale e missione nel Nuovo Mondo. L’impegno, assunto dalla storiografia missionaria cattolica lungo il corso del XIX secolo, costituisce l’esito dell’impulso proveniente dagli studi svolti da Alexander von Humboldt intorno all’esplorazione delle Americhe (Examen critique. Le informazioni sullo spazio asiatico trasmesse dai missionari operanti durante il XIII e il XIV secolo tra Karakorum e Khanbaliq pervengono a Cristoforo Colombo mediante Ruggero Bacone (Opus majus, che Humlbodt stesso stima mediatore culturale per antonomasia. La parte conclusiva della ricerca si occupa di stabilire modalità e ragioni della secolarizzazione del concetto di missione, cioè del trasferimento all’interesse cartografico dell’anelito alla propagazione del messaggio cristiano fino agli estremi confini della terra

  9. El Niño and similar perturbation effects on the benthos of the Humboldt, California, and Benguela Current upwelling ecosystems

    Directory of Open Access Journals (Sweden)

    W. E. Arntz

    2006-01-01

    Full Text Available To a certain degree, Eastern Boundary Current (EBC ecosystems are similar: Cold bottom water from moderate depths, rich in nutrients, is transported to the euphotic zone by a combination of trade winds, Coriolis force and Ekman transport. The resultant high primary production fuels a rich secondary production in the upper pelagic and nearshore zones, but where O2 exchange is restricted, it creates oxygen minimum zones (OMZs at shelf and upper slope (Humboldt and Benguela Current or slope depths (California Current. These hypoxic zones host a specifically adapted, small macro- and meiofauna together with giant sulphur bacteria that use nitrate to oxydise H2S. In all EBC, small polychaetes, large nematodes and other opportunistic benthic species have adapted to the hypoxic conditions and co-exist with sulphur bacteria, which seem to be particularly dominant off Peru and Chile. However, a massive reduction of macrobenthos occurs in the core of the OMZ. In the Humboldt Current area the OMZ ranges between <100 and about 600 m, with decreasing thickness in a poleward direction. The OMZ merges into better oxygenated zones towards the deep sea, where large cold-water mega- and macrofauna occupy a dominant role as in the nearshore strip. The Benguela Current OMZ has a similar upper limit but remains shallower. It also hosts giant sulphur bacteria but little is known about the benthic fauna. However, sulphur eruptions and intense hypoxia might preclude the coexistence of significant mega- und macrobenthos. Conversely, off North America the upper limit of the OMZ is considerably deeper (e.g., 500–600 m off California and Oregon, and the lower boundary may exceed 1000m. The properties described are valid for very cold and cold (La Niña and "normal" ENSO conditions with effective upwelling of nutrient-rich bottom water. During warm (El Niño episodes, warm water masses of low oxygen concentration from oceanic and equatorial regions enter the upwelling

  10. Humboldt y el ‘Área de Libre Comercio de las Américas (ALCA’ Un ejercicio de ‘ciencia humboldtiana’

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    J. Alberto Navas-Sierra

    2002-10-01

    Full Text Available Article in Spanish, Abstracts in English and Spanish.As it is well known, Humboldt and Bonpland ended their almost five-years-journey throughout the American continent with a short but intense stay of nearly three months in the USA.As it has already been studied in a previous paper (‘HiN’ nº 3, 2001, Humboldt’s political and economical thesis predicted the role and the place that would most probably correspond to the newly born American nations within the new post-Napoleonic world order.Afterward, Humboldt explicitly stated that not only the future but the present of the USA seemed very different to the one of the Latin American countries due to the many ethnic, social and cultural barriers, and specially to the many historical ‘vices’ that these had inherited from the colony. This conviction was shared with other ‘illustrated’ German thinkers of his time, such as G.F. Hegel, who thought that after the full consummation of the Iberoamerican independence from Europe a confrontation, even military, will be unavoidable and even necessary between the North and the South of the America as precondition for the rebirthing of the ‘idea’, ‘reason’ and ‘spirit’ into the ‘new world’; it is, as precondition for the continuity of ‘History’; in other words, for avoiding the ‘end of History’. After 200 years of a complex and difficult coexistence between the USA and the rest of the continent, and after at least two failures of Iberoamerica to achieve a full reinsertion within the Western politics, culture and economy, the USA, having been a super world power for several decades, have offered, and even forced, a great continental alliance (‘ALCA ’that will lead in, a very short term (2005, to a unique and preferential continental market and, in some way, to a unique American economic culture. One of the many questions that arises about such a challenge is if the Iberoamerican countries have yet been able to overcome

  11. The application of LANDSAT remote sensing technology to natural resources management. Section 1: Introduction to VICAR - Image classification module. Section 2: Forest resource assessment of Humboldt County.

    Science.gov (United States)

    Fox, L., III (Principal Investigator); Mayer, K. E.

    1980-01-01

    A teaching module on image classification procedures using the VICAR computer software package was developed to optimize the training benefits for users of the VICAR programs. The field test of the module is discussed. An intensive forest land inventory strategy was developed for Humboldt County. The results indicate that LANDSAT data can be computer classified to yield site specific forest resource information with high accuracy (82%). The "Douglas-fir 80%" category was found to cover approximately 21% of the county and "Mixed Conifer 80%" covering about 13%. The "Redwood 80%" resource category, which represented dense old growth trees as well as large second growth, comprised 4.0% of the total vegetation mosaic. Furthermore, the "Brush" and "Brush-Regeneration" categories were found to be a significant part of the vegetative community, with area estimates of 9.4 and 10.0%.

  12. Long-term nongeocentric axial dipole directions and a geomagnetic excursion from the Middle Pleistocene sediments of the Humboldt River Canyon, Pershing County, Nevada

    Science.gov (United States)

    Negrini, Robert M.; Verosub, Kenneth L.; Davis, Jonathan O.

    1987-09-01

    A paleomagnetic record has been obtained from the middle Pleistocene sediments of the Humboldt River Canyon, Pershing County, Nevada. The age of the sediments is constrained by two tephra layers, the 610,000-year-old Lava Creek tephra and the approximately 495,000-year-old Dibekulewe tephra. The magnetization of the sediments is strong and stable, and the similarity of data from replicate sections strongly suggests that the data set represents an accurate record of the magnetic field except for the presence of postmagnetization rotations of less than 10°. The influence of postmagnetization rotations was eliminated in one of the sections (HR1A) by rotating the paleomagnetic directions in accordance with the direction of the Lava Creek welded tuff previously determined from five sampling sites near Yellowstone National Park. After correcting the mean directions we observed nongeocentric axial dipole (non-GAD) mean directions of moderate amplitude (19° ± 13° in declination and 22° ± 8° in inclination) in the record from the HRlA section which may represent as much as 115,000 years of magnetic field behavior. In the youngest part of the Humboldt River Canyon sediments a zone of anomalous directions was recorded which we interpret to be a detailed record of an unconfirmed geomagnetic excursion. This record exhibits behavior consistent with that of previously reported polarity transitions. Because of the widespread nature of the tephras, especially the Lava Creek tephra, the prospects are very good for improving estimates of the magnitude and duration of the non-GAD paleomagnetic directions and, also, for confirming the excursion.

  13. Humboldt in Copenhagen

    DEFF Research Database (Denmark)

    Jørgensen, Claus Møller

    2012-01-01

    and the education of secondary school teachers at the end of the eighteenth century. While the classics held a superior position until 1849 embodying the ideal of educational holism and integration of disciplines, after the reform of the faculty of humanities in 1849 the attempt at integration lost its...... attractiveness. The disciplines evolved as specialized scholarly disciplines with research agendas, methodologies and journals of their own. Classical philology became gradually marginalized by the national disciplines of history and national philology....

  14. Humboldt in Copenhagen

    DEFF Research Database (Denmark)

    Jørgensen, Claus Møller

    2012-01-01

    and the education of secondary school teachers at the end of the eighteenth century. While the classics held a superior position until 1849 embodying the ideal of educational holism and integration of disciplines, after the reform of the faculty of humanities in 1849 the attempt at integration lost its...

  15. Tentativa de infanticídio por um macho dominante de Alouatta caraya (Humboldt (Primates, Atelidae em um infante extra-grupo devido a influência do observador Infanticide attempt by a dominant male of Alouatta caraya (Humboldt (Primates, Atelidae against an extra-group infant due to the influence of the observer

    Directory of Open Access Journals (Sweden)

    Lucas M. Aguiar

    2005-12-01

    Full Text Available Este trabalho relata um caso de tentativa de infanticídio por um macho residente e dominante de um grupo de Alouatta caraya (Humboldt, 1812 em um infante extra-grupo, em ilha do rio Paraná, Paraná, Brasil. O encontro do par fêmea-infante com o macho residente foi propiciado pela interferência humana. Devido às circunstâncias em que ocorreu o fato e a posição hierárquica do agressor, a hipótese de patologia social pareceu plausível na explicação do comportamento.This work reports on an infanticide attempt by a dominant resident male in a group of Alouatta caraya (Humboldt, 1812 on an extra-group infant in an Island in the Paraná river, Paraná, Brazil. The encounter of an infant-female pair with a resident male was brought about by human interference. Give the circumstances in which the event ocurred and the hierarchical position of the agressor, the social pathology hypothesis seems the most plausible explanation for such behavior.

  16. Observaciones ecológicas sobre el pez capitán, Eremophilus mutisii Humboldt 1805 (Pisces: Trichomycteridae en los departamentos de Cundinamarca y Boyacá, Colombia Observaciones ecológicas sobre el pez capitán, Eremophilus mutisii Humboldt 1805 (Pisces: Trichomycteridae en los departamentos de Cundinamarca y Boyacá, Colombia

    Directory of Open Access Journals (Sweden)

    Sarmiento R. Néstor

    1989-06-01

    Full Text Available

    Information of the population for several Eremophilus muusu Humboldt 1805 were provided at the Cundinarnarca and Boyaca regions.The main information were concerning the habitat. dtstrtbunon of altitude. water temperature. oxygen tolerance. sizes and relation of weight/Ienght. The fertility and relation of eggs number. weight of the gonade as well the relation of reproduction index. wight of testicle. the complete weight were also gtved. On the other side conditions factor for young and adults. sex for male and female in different time of spawning were also provided.

    Para varias poblaciones de Eremophilus mutisii Humboldt 1805, en los Departamentos de Cundinamarca y Boyacá, se proporciona información acerca del hábitat, la distribución altitudinal, la temperatura del agua, la tolerancia de oxigeno,  las tallas y relaciones de peso y longitud, la fecundidad y la relación del numero de huevos y peso de la gónada, así como las relaciones de los índices de reproducción, el peso del testículo y el peso total del ejemplar, el factor de condición para juveniles y adultos, las tallas por sexo y epocas de desove.

  17. "Como antiguas estatuas de bronce" Sobre la disolución del clasicismo en la Relación histórica de un viaje a las regiones equinocciales del Nuevo Continente, de Alejandro de Humboldt*

    Directory of Open Access Journals (Sweden)

    Oliver Lubrich

    2004-10-01

    Full Text Available Article in Spanish, Abstracts in English, German and Spanish. "Like antique bronze statues" – Dissolving classicism in Alexander von Humboldt's Relation historique du Voyage aux Régions équinoxiales du Nouveau ContinentThe "antiquization" of America, using classicist motifs as imperial models of appropriation, is a central rhetorical strategy in Alexander von Humboldt's travelogue. Over the course of the colonial experience this discourse is infused with tension: metaphoric and metonymic types of references collide; positive and negative connotations are superimposed; incompatible modes of temporalization are contrasted; colonial as well as dissident identifications are laid out. The concept of "antiquity" is de-authorized, deconstructed. Readers witness the dissolution of European classicism as a politico-aesthetic 'dispositif' due to contact with cultural difference.

  18. “[M]on extrême répugnance à écrire la relation de mon voyage” Alejandro de Humboldt deconstruye la relación de viaje

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    Oliver Lubrich

    2003-10-01

    Full Text Available Article in Spanish, Abstracts in English and SpanishTraducción: José Aníbal Campos Alexander von Humboldt's American travelogue (Relation historique du Voyage aux Régions équinoxiales du Nouveau Continent, 3 vols., 1814-1831 defies generic definitions: It is a complex hybrid of diverse scientific discourses, documentations of empirical data, diary writing, and traditional forms of travel narrative. Humboldt's poetics specifically undermine the conventional format of the travelogue. All its central features which could lend the text coherence and make it readable for the recipient, are charged with multiple meanings and become thus destabilized:(1 the subject (traveller, author, narrator, signature, personal pronouns,(2 the object (the countries that the travelogue is supposed to thematize, their various and contradictory forms of denomination and description in the text,(3 the addressee (the explicit narratee as well as the implicit reader and the interpretive community, and finally(4 the text itself (as a literary genre or discoursive phenomenon, its format, its polyphony, its self-reference and self-reflection.A narratological analysis and a structural reading lead us to the question of how Humboldt's poetics reflect his approach to cultural difference. The specific kind of deconstruction of the travelogue which is at work here de-authorizes imperial forms of colonial writing. There are no "identities" and "differences" which can be defined unequivocally from a privileged perspective. Humboldt's travelogue can thus be read within the paradigm provided by contemporary postcolonial theory: In the encounter with "the other", Homi Bhabha observed, "the language of the master becomes hybrid".

  19. Considerações sobre os conceitos de natureza, espaço e morfologia em Alexander Von Humboldt e a gênese da Geografia Física moderna

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    Antonio Carlos Vitte

    2010-04-01

    Full Text Available O artigo discute a formação dos conceitos de natureza, espaço e morfologia na obra de Alexander Von Humboldt e seus impactos na formação da geografia física moderna. Influenciado pelas reflexões de Kant na Crítica do juízo, pelos trabalhos de Goethe e de Schelling, Humboldt desenvolverá uma nova interpretação e representação para a natureza na superfície da Terra, em que o conceito de espacialidade será fundamental para a explicação dos fenômenos da natureza. A geografia física moderna estrutura-se com base em um complexo cruzamento de influências, tanto estéticas quanto instrumentais desenvolvidas por Humboldt, no qual o princípio da conexão será importante para a invenção artística e científica do conceito de paisagem geográfica.

  20. „Zwischen den Zeilen …“ Zur kodikologischen Untersuchung der Amerikanischen Reisetagebücher von Alexander von Humboldt

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    Julia Bispinck-Roßbacher

    2015-12-01

    Full Text Available Zusammenfassung Der Artikel beschäftigt sich mit dem kodikologischen Befund der Amerikanischen Reisetagebücher und materialtechnologischen Untersuchungen zu ihrem Papier und Beschreibstoffen. Der kodikologische Aspekt beinhaltet eine umfassende Erfassung aller physischen Merkmale und Besonderheiten der Tagebücher, wobei ein Fokus auf die Zusammenstellung der Lagen, auf heraus getrennten oder ganz fehlenden Seiten liegt. Dies geschieht vor dem Hintergrund, die ursprüngliche Zusammenstellung der Tagebücher zu rekonstruieren, die Genese zu erforschen und im Nachlass befindliche Teile ggf. fehlenden Blättern oder Fragmenten in den Tagebüchern zuzuordnen. Wasserzeichenaufnahmen mit der Thermographiekamera und Tintenanlaysen mithilfe der Röntgenfluoreszenztechnik können dabei helfen aufzuzeigen, wie die Tagebücher entstanden sind und wie sie bis zum Tod Alexander von Humboldts von ihm als Arbeitsinstrument genutzt wurden. Resumen El artículo trata de los resultados codicológicos y exámenes tecnológicos sobre los aspectos materiales (papeles, tintas de los Diarios del viaje americano. El aspecto codicológico incluye una revisión extensa de las características y particularidades materiales de los diarios, enfocando las encuadernaciones y las páginas separadas o faltantes. La revisión tiene como fin de reconstruir la compilación original de los diarios, de explorar su génesis y de adjudicar partes (fragmentos, folios faltantes del legado a los diarios tal como los tenemos hoy. Las marcas de agua se registran con la cámara termográfica, el análisis de las tintas usadas se realiza con ayuda de un sistema de medida por fluorescencia de rayos X. Esto contribuirá a mostrar como evolucionaron los diarios de viaje y como fueron usadas por Alejandro de Humboldt a lo largo de su vida y hasta antes de su muerte. Abstract The American Travel Diaries’ paper and writing materials have been examined under codicological aspects as well as in

  1. Breaking out of the comfort zone: El Niño-Southern Oscillation as a driver of trophic flows in a benthic consumer of the Humboldt Current ecosystem.

    Science.gov (United States)

    Riascos, José M; Solís, Marco A; Pacheco, Aldo S; Ballesteros, Manuel

    2017-06-28

    The trophic flow of a species is considered a characteristic trait reflecting its trophic position and function in the ecosystem and its interaction with the environment. However, climate patterns are changing and we ignore how patterns of trophic flow are being affected. In the Humboldt Current ecosystem, arguably one of the most productive marine systems, El Niño-Southern Oscillation is the main source of interannual and longer-term variability. To assess the effect of this variability on trophic flow we built a 16-year series of mass-specific somatic production rate (P/B) of the Peruvian scallop (Argopecten purpuratus), a species belonging to a former tropical fauna that thrived in this cold ecosystem. A strong increase of the P/B ratio of this species was observed during nutrient-poor, warmer water conditions typical of El Niño, owing to the massive recruitment of fast-growing juvenile scallops. Trophic ecology theory predicts that when primary production is nutrient limited, the trophic flow of organisms occupying low trophic levels should be constrained (bottom-up control). For former tropical fauna thriving in cold, productive upwelling coastal zones, a short time of low food conditions but warm waters during El Niño could be sufficient to waken their ancestral biological features and display massive proliferations. © 2017 The Author(s).

  2. Distribución y abundancia de Ateles belzebuth E. Geoffroy y Ateles chamek Humboldt (Cebidae: Primates en la Reserva Nacional Pacaya Samiria, Perú

    Directory of Open Access Journals (Sweden)

    Rolando Aquino

    2006-10-01

    Full Text Available En el presente trabajo se dan a conocer las observaciones sobre el hábitat, las asociaciones inter-específicas, tamaño de grupo y densidad poblacional de las dos especies de Ateles que habitan en la Reserva Nacional Pacaya Samiria. Los datos fueron colectados mediante inventarios y censos por transecto en los periodos de enero de 1997 a febrero de 1999, setiembre -– octubre 2000, agosto -– setiembre, 2002 y enero 2003. En la margen izquierda del Río Samiria, Ateles belzebuth E. Geoffryoy y Ateles chamek Humboldt comparten el hábitat formando grupos mixtos. El tamaño promedio de grupo para A. belzebuth fue 5,1 individuos/grupo y para Ateles chamek 7,3 individuos/grupo. La densidad poblacional estimada para A. belzebuth fue 1,02 individuos/km2 y para A. chamek 0,51 individuos/km2 . Se discuten y analizan los factores que habrían influido para la drástica reducción de ambas poblaciones.

  3. Determination of total mercury in whole-body fish and fish muscle plugs collected from the South Fork of the Humboldt River, Nevada, September 2005

    Science.gov (United States)

    May, Thomas W.; Brumbaugh, William G.

    2007-01-01

    This report presents the results of a study by the U.S. Geological Survey, done in cooperation with the U.S. Bureau of Reclamation, to determine mercury concentrations in whole-body fish and fish muscle plugs from the South Fork of the Humboldt River near Elko in the Te-Moak Indian Reservation. A single muscle plug was collected from beneath the dorsal fin area in each of the three whole-body fish samples. After homogenization and lyophilization of the muscle plugs and whole-body fish samples, mercury concentrations were determined with a direct mercury analyzer utilizing the process of thermal combustion-gold amalgamation atomic absorption spectroscopy. Mercury concentrations in whole-body fish ranged from 0.048 to 0.061 microgram per gram wet weight, and 0.061 to 0.082 microgram per gram wet weight in muscle plugs. All sample mercury concentrations were well below the U.S. Environmental Protection Agency's fish consumption advisory of 0.30 microgram per gram wet weight.

  4. Partial pressure (or fugacity) of carbon dioxide, salinity and SEA SURFACE TEMPERATURE collected from underway - surface observations using Carbon dioxide (CO2) gas analyzer, Shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement and other instruments from the A. V. HUMBOLDT, ARANDA and others in the Baltic Sea, Gulf of Bothnia and others from 1995-10-11 to 2011-11-28 (NODC Accession 0112760)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0112760 includes chemical, physical and underway - surface data collected from A. V. HUMBOLDT, ARANDA, FINNPARTNER and Finnmaid in the Baltic Sea,...

  5. Icono-grafía, cali-grafía, auto-grafía. Sobre el arte de la visualización en los diarios del viaje americano de Alexander von Humboldt

    Directory of Open Access Journals (Sweden)

    Ottmar Ette

    2015-05-01

    Full Text Available Zusammenfassung In Gemälden, die den späten Alexander von Humboldt zeigen, finden sich bildlich verdichtete Zeichen seines wissenschaftlichen Lebens. So erinnert das Bild des von Humboldt nicht ganz bestiegenen Chimborazo an die epistemische Funktion des Unabgeschlossenen in seiner Arbeit, während Karte, Globus und die charakteristische Körperhaltung auf die zentrale Bedeutung der Bewegung und auf das „Schreiben im Angesicht der Dinge“ verweisen. Auffällig ist die Präsenz des Schreibmaterials in den Bildern, das als Verweis auf die lebenslange Bedeutung der Amerikanischen Reisetagebücher verstanden werden kann. In diesen kommen wiederum die zentralen Momente der Humboldtian Science zum Ausdruck. Der Charakter des work in progress und die konsequente Relationalität der Darstellung zeigen die epistemologischen Konstanten dieser Wissenschaft genauso an wie die in der Handschrift erkennbare Dimension der Körper-Leiblichkeit. Resumen En las pinturas que retratan al erúdito Alexander von Humboldt encontramos densos signos visuales las cuales simbolizan su vida científica. La imagen del Chimborazo, cuya cima Humboldt no había alcanzado, recuerda la función epistémica de lo inacabado en su obra, mientras que la carta, el globo y su postura típica remiten al central significado del movimiento y al “escribir de cara a las cosas”. La presencia de sus objetos de escritura en las imagenes llama la atención, ya que se puede entender como referencia al significado de los diarios del viaje americano escritos durante toda la vida. En aquellos se ponen de manifiesto los momentos centrales del Humboldtian Science. El carácter del work in progress y la relacionalidad consecuente de la representación muestran las constantes epistemológicas de esta ciencia así como la dimensión de lo corporal en los manuscritos. Summary In the paintings showing the late Alexander von Humboldt, there are figuratively condensed signs of his scientific

  6. La expedición americana de Alexander von Humboldt y su contribución a la ciencia del siglo XIX

    Directory of Open Access Journals (Sweden)

    2003-01-01

    Full Text Available Cet ouvrage étudie le sens des élaborations et des publications scientifiques d´Alexandre von Humboldt - fruits de sa fameuse expédition américaine (1799-1804 - pour le développement des sciences de son temps. Dans tous les écrits on emphatise généralement l’immense contribution de ce voyageur prussien à la recherche scientifique. Nous analyserons ici plus en détails et de façon critique la nature exacte de cet apport. On étudiera les répercussions de la somme d’informations sur l’Amérique comme son concept interdisciplinaire novateur et holistique de la science. La classification selon les différentes disciplines académiques ne nous intéresse pas et lui préférerons l’étude, dans sa vision générale, du côté novateur et précieux de son information, son approche scientifique et sa méthode pour le progrès des sciences en Europe et en Amérique. Este trabajo estudia el significado de las elaboraciones y publicaciones científicas de Alexander von Humboldt -que resultaron de su famosa expedición americana (1799-1804- para el desarrollo de las ciencias de su época. Tradicionalmente en todo tipo de escritos se enfatiza la inmensa aportación de este viajero prusiano a la investigación científica. Aquí será analizada más detalladamente y críticamente en qué consiste exactamente dicha aportación. Se estudiará la repercusión que ha tenido tanto la gran información sobre América como su nuevo concepto interdisciplinario y holístico de la ciencia. No nos interesa clasificar su aportación según las distintas disciplinas académicas, sino en su visión general, ver lo novedoso y valioso de su información, su planteamiento científico así como su método para el avance de las ciencias tanto en Europa como en América. The aim of this study is the significance of the development of the Alexander von Humboldtpublications?, resulting from his famous American expedition (1799-1804. Various authors have stressed

  7. Diet diversity of jack and chub mackerels and ecosystem changes in the northern Humboldt Current system: A long-term study

    Science.gov (United States)

    Alegre, Ana; Bertrand, Arnaud; Espino, Marco; Espinoza, Pepe; Dioses, Teobaldo; Ñiquen, Miguel; Navarro, Iván; Simier, Monique; Ménard, Frédéric

    2015-09-01

    Jack mackerel Trachurus murphyi (JM) and chub mackerel Scomber japonicus (CM) are medium size pelagic fish predators and highly exploited resources. Here we investigated the spatiotemporal patterns of JM and CM diet composition using a large dataset of stomach samples collected from 1973 to 2013 along the Peruvian coast. In total 47,535 stomachs (18,377 CM and 29,158 JM) were analysed, of which 23,570 (12,476 CM and 11,094 JM) were non-empty. Results show that both species are opportunistic and present a trophic overlap. However, despite their smaller maximal size, CM consumed more fish than JM. Both diets presented high spatiotemporal variability. Spatially, the shelf break appears as a strong biogeographical barrier affecting prey species distribution and thus CM and JM diet. Opportunistic foragers are often considered as actual indicators of ecosystem changes; we show here that diet composition of CM and JM reveal ecosystem changes but is not always a good indicator of changes in prey biomass as prey accessibility and energy content can also play an important role. In addition we found that El Niño events have a surprisingly weak effect on stomach fullness and diet. Finally our results show that the classic paradigm of positive correlation between diversity and temperature is unlikely to occur in the Humboldt Current system where productivity seems to be the main driver. We show how energy content of forage species and the strength of the oxygen minimum zone most likely play an important role prey diversity and accessibility, and thus in fish foraging behaviour.

  8. The first seven months of an infant of Alouatta guariba (Humboldt (Primates, Atelidae: interactions and the development of behavioral patterns Os sete primeiros meses de um infante de Alouatta guariba (Humboldt (Primates, Atelidae: interações e desenvolvimento dos padrões comportamentais

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    João M. D. Miranda

    2005-12-01

    Full Text Available The development of the interactions of an infant primate with its mother and the other members of its social group plays a special role in the ethology and demography of the species, with consequences for their survive and their conservation. The objective of the present study is to investigate the development of an infant of Alouatta guariba (Humboldt, 1812 in the wild, its behavior and interactions during its first seven months of age, in a remnant of Araucaria Pine Forest in Paraná State, Brazil. Using the method of instantaneous scanning with 5 min intervals, a total of 46 hours and 15 minutes of direct observation (555 individual records showed that the infant behavioral patterns during its first four months were characterized by high dependency, which decreased progressively until the appearance of typically juvenile behaviors during the remaining 3 months. The first records of feeding on solid food, tail functionality and allomaternal care were also recorded and discussed. This work contributes to an understanding of the ontogenetic development of a poorly known aspect of this species, and thus for a more understanding of the genus Alouatta Lacépède, 1799.O desenvolvimento das interações do infante primata com a mãe e demais membros do grupo social tem importância na etologia e na demografia da espécie, apresentando profundas conseqüências para sua sobrevivência e portanto, na conservação da espécie. O objetivo deste trabalho foi estudar o desenvolvimento de um infante de Alouatta guariba (Humboldt, 1812 em vida livre, seu comportamento e interações durante os sete primeiros meses de vida, em um remanescente de Floresta Ombrófila Mista, Estado do Paraná, Brasil. Através do método de varredura instantânea com intervalo de cinco minutos, um total de 46 horas e 15 minutos de observações diretas (555 registros individuais mostraram que os padrões comportamentais do infante foram de alta dependência nos primeiros

  9. Common catabolic enzyme patterns in a microplankton community of the Humboldt Current System off northern and central-south Chile: Malate dehydrogenase activity as an index of water-column metabolism in an oxygen minimum zone

    Science.gov (United States)

    González, R. R.; Quiñones, R. A.

    2009-07-01

    An extensive subsurface oxygen minimum zone off northern and central-south Chile, associated with the Peru-Chile undercurrent, has important effects on the metabolism of the organisms inhabiting therein. Planktonic species deal with the hypoxic and anoxic environments by relying on biochemical as well as physiological processes related to their anaerobic metabolisms. Here we characterize, for the first time, the potential enzymatic activities involved in the aerobic and anaerobic energy production pathways of microplanktonic organisms (catabolic pathways in the oxygen minimum zone. Malate dehydrogenase had the highest oxidizing activity of nicotinamide adenine dinucleotide (reduced form) in the batch of catabolic enzymatic activities assayed, including potential pyruvate oxidoreductases activity, the electron transport system, and dissimilatory nitrate reductase. Malate dehydrogenase correlated significantly with almost all the enzymes analyzed within and above the oxygen minimum zone, and also with the oxygen concentration and microplankton biomass in the water column of the Humboldt Current System, especially in the oxygen minimum zone off Iquique. These results suggest a possible specific pattern for the catabolic activity of the microplanktonic realm associated with the oxygen minimum zone spread along the Humboldt Current System off Chile. We hypothesize that malate dehydrogenase activity could be an appropriate indicator of microplankton catabolism in the oxygen minimum zone and adjacent areas.

  10. Petroglifos en rocas de la Cordillera de la Costa así como en los raudales de los ríos de la selva virgen venezolana. La interpretación por Alejandro de Humboldt y observaciones actuales

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    Ursula Thiemer-Sachse

    2003-04-01

    Full Text Available Article in Spanish, Abstracts in English, German and Spanish.Indian Petroglyphs on rocks of the Venezuelan Cordilleras mountain chain as well as Región de los Raudales, the tropical forest headwaters. A. v. Humboldt’s petroglyph interpretations and present observations. Throughout the world the interpretation of petroglyphs and other prehistoric rock art is a difficult endeavor. Some of the factors contributing to these puzzles include, among others: a lack of knowledge about the circumstances (such as rituals and the concomitant ideas that played key roles in the creation of the petroglyphs. Even the famous nineteenth-century German explorer Alexander von Humboldt, who first saw South American petrogpyphs while mapping the river system connecting the Amazon and Orinoco rivers in Venezuela, ventured to decipher and analyze the complicated artwork as part of his interest in ancient civilizations. Since the time of Humboldt numerous other researchers have attempted to decode and provide a culturally-situated analysis of petroglyph’s meanings.

  11. „Wir verbrachten mehr als 24 Stunden, ohne etwas anderes als Schokolade und Limonade zu uns zu nehmen“. Hinweise in Alexander von Humboldts Tagebuchaufzeichnungen zu Fragen der Verpflegung auf der Forschungsreise durch Spanisch-Amerika

    Directory of Open Access Journals (Sweden)

    Ursula Thiemer-Sachse

    2013-12-01

    Full Text Available Zusammenfassung In Alexander von Humboldts Tagebüchern seiner berühmten Forschungsreise durch Spanisch-Amerika finden sich Bemerkungen und Hinweise für künftige Leser seiner Reisedarstellungen zu Problemen der Verpflegung. Zumeist werden Engpässe und Missstände erwähnt sowie Fragen soziopolitischer Situation verdeutlicht. Sie beziehen sich auf Extrembedingungen in stadtfernen Gebieten und im Kontakt mit den indigenen Trägern und Helfern während der einzelnen Exkursionen. Die Darstellungen der alltäglichen Gegebenheiten sind zugleich eine interessante Quelle für Verhaltensmuster der verschiedenen Schichten der spanischkolonialen Gesellschaft wie der Forschungsreisenden, die mit den Schwierigkeiten umzugehen hatten, sich anzupassen verstanden oder ihre eigenen Verhaltensmuster entwickelt haben. Damit ermöglichen Humboldts Aufzeichnungen zugleich auch auf diesem Gebiet manchen Blick auf den seither erfolgten Kulturwandel. Resumen En los diarios del famoso viaje de estudios de Alejandro de Humboldt por la América española se encuentran observaciones y notas sobre problemas de aprovisionamiento, en favor de lectores futuros de sus relaciones de viaje. En la mayoría de los casos Humboldt menciona situaciones precarias o ilustra cuestiones de carácter sociopolítico. Frecuentemente, sus apuntes se refieren a condiciones extremas en regiones remotas y en contacto con los cargadores y ayudantes indígenas durante las diferentes excursiones. Las descripciones de los acontecimientos cotidianos al mismo tiempo son una fuente interesante sobre los modos de proceder de las diferentes capas de la sociedad colonial española así como de los viajeros científicos que tuvieron que enfrentar dificultades a las cuales había que adaptarse o desarrollar modelos propios de comportamiento. Por esto al mismo tiempo las noticias de Humboldt también en este asunto posibilitan más de una vez la atención al cambio cultural que se ha realizado hasta hoy

  12. „… zu den wunderlichsten Schlangen der Gelehrsamkeit zusammengegliedert“. Neue Materialien zu den ‚Kosmos-Vorträgen‘ Alexander von Humboldts, nebst Vorüberlegungen zu deren digitaler Edition

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    Dominik Erdmann

    2014-08-01

    Full Text Available Zusammenfassung Alexander von Humboldts 1827/28 gehaltene Kosmos-Vorträge stellen ebenso einen kanonischen Bezugspunkt wie einen weißen Fleck in der Rezeption seines Schaffens dar. Zahlreiche Deutungen basieren auf lediglich zwei unkommentierten Leseausgaben von Collegheften anonym gebliebener Zuhörer Humboldts. Seine 2009 wiedergefundenen eigenhändigen Vorlesungsmanuskripte versprechen, diese schmale Quellenbasis zu erweitern. Alfred Dove hatte bereits 1872 auf ihre Existenz verwiesen und interpretierte sie damals als Nukleus der schriftlichen Ausarbeitung des Kosmos. Diese Sichtweise hat sich in der Rezeption gehalten, während die Materialien, die Dove beschrieb, in Vergessenheit gerieten. Der Artikel stellt anhand ausgewählter Beispiele die Vorlesungsmanuskripte Humboldts und Nachschriften seiner Zuhörer in ihrem Zusammenhang vor, entwickelt die These von der Eigenständigkeit der sogenannten Kosmos-Vorträge gegenüber dem fünfbändigen Kosmos und umreißt die wichtigsten Ziele und Inhalte der geplanten digitalen Edition. Abstract Alexander von Humboldt’s famous Kosmos-Lectures, presented in 1827/28, constitute a major benchmark as well as a blind spot in the reception of his work. Numerous interpretations are based on merely two uncommented textbook editions of notes made by anonymous listeners. Humboldt’s own lecture manuscripts, rediscovered in 2009, promise to extend the sources of interpretation. Already in 1872, Alfred Dove gave a hint to the existence of these papers. At that time, he regarded them as the nucleus of the later published Kosmos. This perception persisted up to recent times, while the existence of the papers on which Dove alluded, fell into oblivion. The article presents examples of Humboldt’s own lecture manuscripts together with notes made by his listeners. It develops the thesis of the autonomy of Humboldt’s Kosmos-Lectures towards the Kosmos, but at the same time points to aspects of continuity

  13. Biochemical composition of seston in two upwelling sites within the Humboldt Current System (21°S to 23°S): Summer conditions

    Science.gov (United States)

    Isla, Enrique; Homs, Patricia; Sañé, Elisabet; Escribano, Rubén; Claramunt, Gabriel; Teixidó, Nuria

    2010-07-01

    The biochemical composition of seston within the Humboldt Current System (HCS) in two bays off northern Chile (21°S-23°S) was assessed to estimate its chemical quality as potential food supply for benthic communities, large zooplankton and fish larvae. As part of the CENSOR project, in the summer of 2006 physical and biochemical variables were analyzed in Chipana and Mejillones Bays during one week at four depths determined by the occurrence of the upper boundary of the oxygen minimum zone and fluorescence peaks. The depth of the oxy- and pycnoclines controlled the distribution of biochemical variables in both bays. There were significant differences in the concentration of protein (PRT), lipid (LPD) and carbohydrates (CHO) among depths in both bays. The differences were also found in the PRT and LPD contribution to the biopolymeric carbon (BPC) among bays and among depths in the case of CHO. However, the concentration of suspended particulate matter and biogenic silica (bSi) were similar in both bays. PRT, LPD and CHO showed the highest concentrations in the upper meters of the water column and small peaks close to the seabed related to sediment resuspension and/or lateral transport. In Chipana Bay, the high nutritive quality of seston occurring near the seabed suggests a rapid sinking of diatom aggregates and a reduced respiration of the particulate organic matter. PRT, LPD and CHO varied between 0.05 and 0.47 mg l - 1 , 0.06 and 0.39 mg l - 1 and 0.07 and 0.51 mg l - 1 , respectively. LPD were the most important contributors to the BPC in both bays. The seston in these bays presented a high PRT and LPD content in comparison to a number of settings of different latitudes and oceanographic characteristics. The high quantity and biochemical quality of the particulate matter in both bays may reflect the high productivity of this zone and partially explain their condition as spawning areas within the HCS.

  14. Trophic modeling of the Northern Humboldt Current Ecosystem, Part I: Comparing trophic linkages under La Niña and El Niño conditions

    Science.gov (United States)

    Tam, Jorge; Taylor, Marc H.; Blaskovic, Verónica; Espinoza, Pepe; Michael Ballón, R.; Díaz, Erich; Wosnitza-Mendo, Claudia; Argüelles, Juan; Purca, Sara; Ayón, Patricia; Quipuzcoa, Luis; Gutiérrez, Dimitri; Goya, Elisa; Ochoa, Noemí; Wolff, Matthias

    2008-10-01

    The El Niño of 1997-98 was one of the strongest warming events of the past century; among many other effects, it impacted phytoplankton along the Peruvian coast by changing species composition and reducing biomass. While responses of the main fish resources to this natural perturbation are relatively well known, understanding the ecosystem response as a whole requires an ecotrophic multispecies approach. In this work, we construct trophic models of the Northern Humboldt Current Ecosystem (NHCE) and compare the La Niña (LN) years in 1995-96 with the El Niño (EN) years in 1997-98. The model area extends from 4°S-16°S and to 60 nm from the coast. The model consists of 32 functional groups of organisms and differs from previous trophic models of the Peruvian system through: (i) division of plankton into size classes to account for EN-associated changes and feeding preferences of small pelagic fish, (ii) increased division of demersal groups and separation of life history stages of hake, (iii) inclusion of mesopelagic fish, and (iv) incorporation of the jumbo squid ( Dosidicus gigas), which became abundant following EN. Results show that EN reduced the size and organization of energy flows of the NHCE, but the overall functioning (proportion of energy flows used for respiration, consumption by predators, detritus and export) of the ecosystem was maintained. The reduction of diatom biomass during EN forced omnivorous planktivorous fish to switch to a more zooplankton-dominated diet, raising their trophic level. Consequently, in the EN model the trophic level increased for several predatory groups (mackerel, other large pelagics, sea birds, pinnipeds) and for fishery catch. A high modeled biomass of macrozooplankton was needed to balance the consumption by planktivores, especially during EN condition when observed diatoms biomass diminished dramatically. Despite overall lower planktivorous fish catches, the higher primary production required-to-catch ratio implied a

  15. Crustal structure in the Elko-Carlin Region, Nevada, during Eocene gold mineralization: Ruby-East Humboldt metamorphic core complex as a guide to the deep crust

    Science.gov (United States)

    Howard, K.A.

    2003-01-01

    The deep crustal rocks exposed in the Ruby-East Humboldt metamorphic core complex, northeastern Nevada, provide a guide for reconstructing Eocene crustal structure ???50 km to the west near the Carlin trend of gold deposits. The deep crustal rocks, in the footwall of a west-dipping normal-sense shear system, may have underlain the Pin??on and Adobe Ranges about 50 km to the west before Tertiary extension, close to or under part of the Carlin trend. Eocene lakes formed on the hanging wall of the fault system during an early phase of extension and may have been linked to a fluid reservoir for hydrothermal circulation. The magnitude and timing of Paleogene extension remain indistinct, but dikes and tilt axes in the upper crust indicate that spreading was east-west to northwest-southeast, perpendicular to a Paleozoic and Mesozoic orogen that the spreading overprinted. High geothermal gradients associated with Eocene or older crustal thinning may have contributed to hydrothermal circulation in the upper crust. Late Eocene eruptions, upper crustal dike intrusion, and gold mineralization approximately coincided temporally with deep intrusion of Eocene sills of granite and quartz diorite and shallower intrusion of the Harrison Pass pluton into the core-complex rocks. Stacked Mesozoic nappes of metamorphosed Paleozoic and Precambrian rocks in the core complex lay at least 13 to 20 km deep in Eocene time, on the basis of geobarometry studies. In the northern part of the complex, the presently exposed rocks had been even deeper in the late Mesozoic, to >30 km depths, before losing part of their cover by Eocene time. Nappes in the core plunge northward beneath the originally thicker Mesozoic tectonic cover in the north part of the core complex. Mesozoic nappes and tectonic wedging likely occupied the thickened midlevel crustal section between the deep crustal core-complex intrusions and nappes and the overlying upper crust. These structures, as well as the subsequent large

  16. New species of Haematoloechus (Digenea: Plagiorchidae in the lung of the foothill yellow-legged frog Rana boylii (Anura, from Humboldt County, California, USA Especie nueva de Haematoloechus (Digenea: Plagiorchidae del pulmón de la rana de patas amarillas Rana boylii (Anura, de Humboldt County, California, Estados Unidos de América

    Directory of Open Access Journals (Sweden)

    David Zamparo

    2011-06-01

    Full Text Available A new species of Haematoloechus is described from the lungs of Rana boylii from Humboldt County, California. The new species is similar to Haematoloechus buttensis, Haematoloechus kernensis, and Haematoloechus complexus in general course of the uterus and gonad shape. It is similar to H. buttensis by having a cirrus sac terminating midway between the posterior margin of the pharynx and the anterior margin of the ovary, and having a smaller oral/ventral sucker ratio; to H. complexus by having the genital pore ventral to the pharynx, and it is similar to H. kernensis by having a larger oral sucker to pharynx width ratio. The new species is unique by lacking an extra-cecal longitudinal uterine loop from the hind-body. Molecularly, the new species differs 1.04-1.15% in partial 28S sequence with respect to H. complexus, and a monophyletic grouping of these specimens in a phylogenetic analysis of all available sequence data consistent with the species-specific status proposed herein. Evidence is also presented to suggest that specimens identified as H. buttensis in Rana pretiosa from British Columbia, Canada represents a new, but still undescribed species. The importance of conducting biological inventories of helminths, along with continued monitoring of populations, and collections based taxonomy are related.Una especie nueva de Haematoloechus es descrita de los pulmones de Rana boylii de Humboldt County, California. La especie nueva guarda semejanza con Haematoloechus buttensis, Haematoloechus kernensis, y Haematoloechus complexus en la disposición general del útero y en la forma de las gónadas. Es similar a H. buttensis en que la bolsa del cirro finaliza entre el margen posterior de la faringe y el margen anterior del ovario, y en presentar una relación menor entre la ventosa oral y el acetábulo; a H. complexus por tener el poro genital ventral a la faringe, y a H. kernensis por tener una relación mayor del ancho de la ventosa oral contra la

  17. El “Museo histórico indiano” de Lorenzo Boturini Benaduci y los esfuerzos del erudito alemán Alejandro de Humboldt para preservar sus restos para una interpretación científica

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    Ursula Thiemer-Sachse

    2003-04-01

    Full Text Available Article in Spanish, Abstracts in English and Spanish.The famous German scientist Alexander von Humboldt visited Mexico in 1803. He made several efforts to preserve the remainders of the so called ”Museo histórico indiano” which had been collected about fifty years before by the Italian Lorenzo Boturini Benaduci and which was at that time confiscated by the viceroyal administration. The fate of the unfortunate collector, his ideas and the failure of his intentions have caused new research into his motives and the results of his efforts. A discussion of the value of sources available to scholars which are related to the original inhabitants of the precolonial Mexico seems to be justified. The paper will discuss the opportunities and difficulties in collecting documents at the time of the Spanish dominion, and within that time the extraordinary character and eminent importance of Boturini’s collection. Moreover, it is evaluating his academic work for American anthropology.

  18. Un condiscípulo español de Alexander von Humboldt en la Bergakademie de Freiberg: Josef Ricarte y su informe sobre el método de amalgamación de Born (1788

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    Rebok, Sandra

    2004-12-01

    Full Text Available This article presents the work of Joseph Ricarte who stayed in Paris as a fellow and, afterwards, he went to Central Europe to study Born's amalgamation method. The work of Ricarte was specially interesting at the School of Minery in Schemnitz directed by profesor Antón Ruprecht at that time (1787. The article also refers to the instruction journeys made by Josep Ricarte and Andrés Manuel del Río to different regions of Central Europe (Hungary, Austria, Bohemia, etc... until their arriving in Freiberg, Saxony; where they studied with A. Werner and both of them were col leagues of Alexander von Humboldt. The article is supported by a dissertation of Ricarte about Ruprecht improvement of Born's method.

    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.

  19. humboldt1sec.grd

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NGDC builds and distributes high-resolution, coastal digital elevation models (DEMs) that integrate ocean bathymetry and land topography to support NOAA's mission to...

  20. Illustrated and online catalog of type specimens of freshwater fishes in the Colección de Peces Dulceacuícolas of Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH-P), Colombia.

    Science.gov (United States)

    Donascimiento, Carlos; Cárdenas-Bautista, Johann-Stephens; Acosta, Kevin Giancarlo Borja; González-Alvarado, Arturo; Medina, Claudia A

    2016-09-29

    The catalog of type specimens of freshwater fishes deposited in the Colección de Peces Dulceacuícolas del Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH-P) is presented. This list includes 483 specimens in 65 lots representing 11 holotypes and 472 paratypes of 48 nominal species. Corrections, additions, and updating of information in the original descriptions are included in individual remarks for each catalog number entry and a gallery of pictures of holotypes or paratypes of each nominal species is also presented, which supplements some original descriptions lacking figures of their respective types. An online version of the catalog is available at http://humboldt.org.co/en/servicios/colecciones-biologicas/catalogo-de-tipos.

  1. As línguas ameríndias e a Arte de Gramática – gramaticografia de Anchieta e Carochi até a Gramática Mexicana de Wilhelm von Humboldt

    Directory of Open Access Journals (Sweden)

    Werner Thielemann

    2014-03-01

    Full Text Available The description of Amerindian languages is closely linked to theevangelization and catechesis of indigenous American peoples byreligious orders (Franciscans, Jesuits and others. Grammaticographyof native languages, since the discovery of America and for a longtime, was being influenced by the translation practice of catecheticalLatin texts and, in this way, from Ars grammaticae principles andterminology of Latin.Though being aware of the particularities of indigenouslanguages, missionaries do not trangress the degree of descriptive hybridity, evidenced by the Brasilian Grammar of Anchieta and alot of Mexican nahuatl grammars (Olmos, Carochi, discussed inthe article.Paradigmatic change arises with Historical ComparativeGrammar in Europe. The description of American languages changestotally, when, whit his knowledge of Basque, Whilhelm vonHumboldt recognizes the propositional value of the nahuatl verband identifies incorporation as the organizing principle. He initiallygives an adequate description and metalinguistic teminology forthe particularities of Amerindian languages. Throughout his life,he is tried to determine the structures of American languages, butthe very results of his endeavour were not published until after hisdeath (1835.

  2. 语言与思维关系嬗变--从洪堡特、沃尔夫到维果斯基%A Research on the Relations between Language & Thought from Humboldt, Sapir to Vygotsky

    Institute of Scientific and Technical Information of China (English)

    王孟娟; 李葆卫

    2014-01-01

    The relations between language&thought has been remained a dispute in linguistic study. Humboldt, Sapir and Vygotsky all explored the relations between the two. This paper reviews three major studies on language and thought and then points out the research of logic relations between the two is constantly expanding . With the development of modern science, the relations between the two can be explored more comprehensively.%语言与思维的关系一直是语言学研究领域中一个悬而未决的问题,近代从洪堡特、沃尔夫到维果茨基都曾对两者关系做过探索。本文对三者的观点做了梳理和评介,指出语言与思维的关系研究的层面是不断拓展的,随着现代科学的发展,语言与思维关系的研究会得到更全面的探索。

  3. «Como antiguas estatuas de bronce» Sobre la disolución del clasicismo en la relación histórica de un viaje a las regiones equinocciales del nuevo mundo, de Alejandro de Humboldt

    Directory of Open Access Journals (Sweden)

    Lubrich, Oliver

    2001-12-01

    Full Text Available The «antiquization» of America, using classicist motifs as imperial models of appropriation, is a central rhetorical strategy in Alexander von Humboldt's travelogue. Over the course of the colonial experience this discourse is infused with tension. The concept of «antiquity» is de-authorized, deconstructed. Readers witness the dissolution of European classicism as apolitico-aesthetic ‘dispositif’ due to contact with cultural difference.

    La interpretación de América usando motivos clasicistas como modelos imperiales de apropiación, «antiquización», es una de las principales estrategias retóricas en los relatos de viajes de Alejandro de Humboldt. A partir de la experiencia colonial este discurso está lleno de tensión. El concepto de antigüedad es así desautorizado y deconstruido. Los lectores son testigos de la disolución del clasicismo europeo como dispositivo político-estético producido por la diferencia cultural.

  4. The Humboldt Digital Library: Exploring Innovative Structures

    Directory of Open Access Journals (Sweden)

    Detlev Doherr

    2005-04-01

    Full Text Available Article in English, Abstracts in English, German and Spanish.Alexander von Humboldt’s maps, graphs and illustrations contain a great deal of detail, but in the available rare editions they are hardly visible to the naked eye. In many editions they have been reduced. In a digital library, they will become accessible in their entirety, and Internet technology will reproduce them in a form that overcomes the limitations of the original printing. The user will be able to enlarge the images and see details that might have been overlooked in the past.The Humboldt’s digital library will adhere to the standards for digital libraries established by the Open Archives Initiative (OAI and the tools EPRINTS and DSPACE to provide the Web services and determine the most effective way to establish dynamic linking and knowledge based searching of information within the archive.

  5. Supporting Teens in Chicago's Humboldt Park.

    Science.gov (United States)

    Abbate, Nancy M.

    1990-01-01

    Describes a Youth Service Project Program for teen mothers in Chicago. The program uses a bicultural approach that provides teens with a supportive social network and the opportunity to acquire parenting and literacy skills. (PCB)

  6. 76 FR 42112 - Humboldt (NV) Resource Advisory Committee

    Science.gov (United States)

    2011-07-18

    ... committee is to improve collaborative relationships and to provide advice and recommendations to the Forest Service concerning projects and funding consistent with the title II of the Act. The meeting is open...

  7. 78 FR 50025 - Humboldt County (CA) Resource Advisory Committee

    Science.gov (United States)

    2013-08-16

    ... relationships and to provide advice and recommendations to the Forest Service concerning projects and funding consistent with the Title II of the Act. The meetings are open to the public. The purpose of the meetings...

  8. Spectra and dynamics of small molecules Alexander von Humboldt lectures

    CERN Document Server

    Field, Robert W

    2015-01-01

    These seven lectures are intended to serve as an introduction for beginning graduate students to the spectra of small molecules. The author succeeds in illustrating the concepts by using language and metaphors that capture and elegantly convey simple insights into dynamics that lie beyond archival molecular constants. The lectures can simultaneously be viewed as a collection of interlocking special topics that have fascinated the author and his students over the years. Though neither a textbook nor a scholarly monograph, the book provides an illuminating perspective that will benefit students and researchers alike.

  9. 77 FR 50082 - Humboldt County, CA Resource Advisory Committee

    Science.gov (United States)

    2012-08-20

    ... meetings are open to the public. The purpose of the meetings are to review and recommend fiscal year 2012... business will be conducted: Review and recommend fiscal year 2012 project proposals. Contact Committee Coordinator listed above for meeting agenda information. Anyone who would like to bring related matters to...

  10. Humboldt Bay National Wildlife Refuge Climate Inventory and Summary

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of this report is to summarize existing and observed trends in temperature and precipitation patterns and forecast climate change projections near the...

  11. 76 FR 34203 - Humboldt (NV) Resource Advisory Committee

    Science.gov (United States)

    2011-06-13

    ... rules that are applicable to the public. Notices of hearings #0;and investigations, committee meetings.... The purpose of the committee is to improve collaborative relationships and to provide advice and....fed.us . Individuals who use telecommunication devices for the deaf (TDD) may call the...

  12. Parcels and Land Ownership, Published in 2011, Humboldt County Government.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Parcels and Land Ownership dataset as of 2011. The extent of these data is generally Humphreys County, MS. This metadata was auto-generated through the Ramona...

  13. DISTRIBUTION OF SEDIMENT MERCURY CONCENTRATIONS IN THE HUMBOLDT RIVER WATERSHED

    Science.gov (United States)

    In 1998 the United States Environmental Protection Agency (USEPA) required the mining industry to list all releases to the environment exceeding the Toxic Release Inventory (TRI) reporting threshold. Mining activities in Arizona, California and Nevada accounted for approx...

  14. Humboldt Nay NWR Sea-level rise modeling

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Baseline information required to assess sea-level rise impacts to marsh habitats will be compiled. The project will provide relevant information to local managers...

  15. Humboldt Bay National Wildlife Refuge Complex: Comprehensive Conservation Plan and Final Environmental Assessment

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This CCP will provide the framework for making decisions on conserving natural, cultural, and recreational resources, managing visitor use, developing facilities and...

  16. General Design and EIS, Humboldt Harbor and Bay, California. Navigation Improvements.

    Science.gov (United States)

    1976-08-01

    49.3TOTAL 99,692 100.0 Ethnicity White 95,342 95.6 Negro 461 0.5 Indian 3,055 3.1 Other 852 0.8 TOTAL 99,710 100.0 Residence Urban 47,045 47.2 Rural...4 F-i N N N N C’) C’) C’) i—I B 0. B—29 TF _______ - ,.- ~~~~~ i~~ - ~~~~~~ .- ‘ - - - ~~~~~~~~~~~~~~~~~~~~ -.- ‘ - 11—36. SAv:NCs IN DAMA ;Es

  17. Political Economy, Alexander Von Humboldt, and Mexico’s 1810 and 1910 Revolutions

    Directory of Open Access Journals (Sweden)

    Richard Weiner

    2010-08-01

    Full Text Available This article, which is informed by Steve Pincus’ scholarship on revolution, engages in the novelendeavor of comparing Mexico’s 1810 and 1910 Revolutions. The article explores broad parallelsbetween the two upheavals, and highlights significant features of Mexico’s Revolutions thatscholars have ignored. Alexander von Humboldt’s Ensayo político sobre el reino de la NuevaEspaña proved to be influential in both of Mexico’s Revolutions, albeit in distinct ways in eachcase. Conflicts over political economy were also central aspects of each Revolution. Theseeconomic disagreements sometimes pitted revolutionists against traditionalists, and sometimesdivided revolutionists against each other. Even if revolutionists differed in terms of economicvisions, they were all “statists” in the sense that they designated an important role for governmentin fostering economic and social modernization.

  18. 洪堡特与人类语言学%Wilhelm yon Humboldt and anthropological linguistics

    Institute of Scientific and Technical Information of China (English)

    姚小平

    2005-01-01

    有几个原因,使得今人把威廉·冯·洪堡特视为人类语言学的先行者:他的研究综合起哲学、历史、社会、文化、民族、语言等多种视角;他通过亲验实证获得巴斯克民族语言的一手材料,很早就采用了现代所谓"田野工作"法;他探讨过美洲印第安语言,提出的"语言世界观"一说影响了美国人类语言学家博厄斯、萨丕尔、沃尔夫等人.看重民族文化和语言的相对价值,追求大同而又不忽略个性和差异,是洪堡特最可贵之处.

  19. [The history of medical physics and biophysics at the Humboldt University in Berlin].

    Science.gov (United States)

    Schneck, P

    2001-01-01

    The present Institute of Medical Physics and Biophysics (former Institute of Radiation Research) was established on September 1st in 1923 by Walter Friedrich (1883-1968). It was after the Institute in Frankfurt A.M. (founded by Friedrich Dessauer in 1921) - the second Institute of its kind in Germany. As a physicist who wrote his dissertation under Wilhelm Conrad Röntgen, he did research together with a Gynecologist in Friedburg on problems of radiation therapy and the prevention of radiation injuries. Thus Friedrich became one of the first German Biomedical Physicists and was appointed to a professorship at the university of Berlin and its faculty of medicine. The paper gives a survey of the history of the Institute of Radiation Research in the twenties, in the time of Nazi-rule, the period after the World War II and in the era of GDR until 1990 and up to the present time. The succession of directorship of the Institute and the main research subjects in medical physics and biophysics have been sketched.

  20. Humboldt Bay Wetlands Review and Baylands Analysis. Volume II. Base Information.

    Science.gov (United States)

    1980-08-01

    at the surface by cool, moisture-laden air that moves in from the Pacific Ocean. Condensa- tion of the moisture in this air mass results in a layer of...Gairdner Pacific Lamprey in Richardson) Hexanchidae Notorynchue maculatua Ayres Sevengill shark Carcharhinidae teiwstelue hen lei (Gill) Brown mouthhound...on muddy/sandy bottoms within patches or beds of eelgrass, surf grass, or seaweeds . The gunnels are brightly colored fish reaching a maximum length of

  1. The Lautarchiv of the Humboldt-Universität zu Berlin / Jürgen-Kornelius Mahrenholz

    Index Scriptorium Estoniae

    Mahrenholz, Jürgen-Kornelius

    2012-01-01

    Saksamaa vangliaagrites eri rahvustest kinnipeetavate kasutamine keelejuhtidena, nende kõne ja muusikakultuuri jäädvustamine. Berliini etnoloogiamuuseumi heliarhiivist (das Phonogrammarchiv) ja Humboldti ülikooli heliarhiivi häälearhiivist (das Lautarchiv) ning salvestuste kogumise initsiaatoritest

  2. Pedagogical Issues from Humboldt to Bologna: The Case of Norway and Germany

    Science.gov (United States)

    Dysthe, Olga; Webler, Wolff-Dietrich

    2010-01-01

    Are the central pedagogical concepts and practices of the Humboldtian university, with "Bildung" as the overarching goal, only part of an elitist history of the university in the past or may they still be of relevance for the 21st century? What processes are involved in fostering "Bildung" then and now? This article investigates such questions,…

  3. Arte y ciencia en la pintura de paisaje Alexander von Humboldt

    OpenAIRE

    Garrido Moreno, Elisa

    2015-01-01

    Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Filosofía y Letras, Departamento de Historia y Teoría del Arte. Fecha de lectura: 04-12-2015 During the Enlightenment, new discoveries created a new way of looking at Nature. The modern conception of the world had replaced the vision of a harmonious cosmos with a new sense of order based on the scientific method. Some of the most important scientific travels, like those of Cook in the Pacific, were carried out a...

  4. NOAA Office for Coastal Management Benthic Habitat Data, Humboldt Bay, CA, 2009 (NODC Accession 0090251)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data are benthic study GIS shapefiles (.shp, .shx, .prj) with associated .dbf attribute tables and specific Federal Geographic Data Committee metadata. A...

  5. Nomos und physis Alexander von Humboldt und die Tradition antiker Denkweisen und Vorstellungen

    Directory of Open Access Journals (Sweden)

    Eberhard Knobloch

    2010-10-01

    Full Text Available Article in German.AbstractAlexander von Humboldt’s world view, philosophy of science, and scientific practice were dominated by the notions of measure and harmony. This matter of fact does not leave any doubt about Humboldt’s Pythagoreanism. Already the choice of the title of his Kosmos was led by Pythagorean thought. In 1846 he explicitly wrote to Jacobi that the whole first book is based on the idea that the first Hellenic seeds to all further progresses of mathematical natural knowledge are owed to the Pythagoreans and their emphasis on measure, number, and weight. The paper consists of four parts. The first part deals with Humboldt’s acquaintance with the fragments of the Pythagorean Philolaus. The second part compares the Aristotelean tradition with Philolaus’s informations on Pythagoreanism. The third part relying on the two foregoing parts explains Humboldt’s philosophy of science as a tranformation of Pythagoreanism. The last part discusses three examples taken from Humboldt’s scientific practice in order to illustrate the results deduced up to then.a

  6. The Lautarchiv of the Humboldt-Universität zu Berlin / Jürgen-Kornelius Mahrenholz

    Index Scriptorium Estoniae

    Mahrenholz, Jürgen-Kornelius

    2012-01-01

    Saksamaa vangliaagrites eri rahvustest kinnipeetavate kasutamine keelejuhtidena, nende kõne ja muusikakultuuri jäädvustamine. Berliini etnoloogiamuuseumi heliarhiivist (das Phonogrammarchiv) ja Humboldti ülikooli heliarhiivi häälearhiivist (das Lautarchiv) ning salvestuste kogumise initsiaatoritest

  7. asentamientos del área protegida. Parque Nacional Alejandro de Humboldt

    Directory of Open Access Journals (Sweden)

    Emérita Moreno Rodríguez

    2007-01-01

    Full Text Available La investigación tiene como objetivo aportar elementos para el rescate del acervo cultural - natural de los pobladores, acerca de la utilización de la flora circundante vinculadas a la cocina tradicional de la región. Se reportaron 258 formas de aprovechamiento, de un total de 75 especies, de las cuales 69 se emplean de forma independiente y 28 se unen constituyendo las recetas de los platos tradicionales de la región.

  8. Airborne Thermal Infrared Multispectral Scanner (TIMS) images over disseminated gold deposits, Osgood Mountains, Humboldt County, Nevada

    Science.gov (United States)

    Krohn, M. Dennis

    1986-01-01

    The U.S. Geological Survey (USGS) acquired airborne Thermal Infrared Multispectral Scanner (TIMS) images over several disseminated gold deposits in northern Nevada in 1983. The aerial surveys were flown to determine whether TIMS data could depict jasperoids (siliceous replacement bodies) associated with the gold deposits. The TIMS data were collected over the Pinson and Getchell Mines in the Osgood Mountains, the Carlin, Maggie Creek, Bootstrap, and other mines in the Tuscarora Mountains, and the Jerritt Canyon Mine in the Independence Mountains. The TIMS data seem to be a useful supplement to conventional geochemical exploration for disseminated gold deposits in the western United States. Siliceous outcrops are readily separable in the TIMS image from other types of host rocks. Different forms of silicification are not readily separable, yet, due to limitations of spatial resolution and spectral dynamic range. Features associated with the disseminated gold deposits, such as the large intrusive bodies and fault structures, are also resolvable on TIMS data. Inclusion of high-resolution thermal inertia data would be a useful supplement to the TIMS data.

  9. Acoustical Scattering, Propagation, and Attenuation Caused by Two Abundant Pacific Schooling Species: Humboldt Squid and Hake

    Science.gov (United States)

    2015-09-30

    mechanisms in these animals. Stony Brook University’s Imaging Center has a “mouse CT” scanner which provides very high resolution (~70 micron) slices...data suggest that the school dynamics create a large amount of variability as to whether multiple scattering processes are likely to occur

  10. A Darwinian mystery: fluctuations in runoff from the la Plata basin (Alexander von Humboldt Medal Lecture)

    Science.gov (United States)

    Clarke, R. T.

    2012-04-01

    During the voyage of HMS Beagle, Charles Darwin sailed in a small boat along the River Paraná, a major tributary of the la Plata drainage system. He wrote about the occurrence of severe droughts (the latest of which had been termed the "gran seco") alternating with periods of severe flooding. From reports received, he concluded that these events appeared to be cyclic with a period "of about fifteen years". Because extended periods of low flow in Brazilian rivers are of immense economic importance, the presentation describes a search for the material which led Darwin to this conclusion. A prolonged period of low flow in another la Plata tributary - the River Paraguay - not unlike the "gran seco" reported by Darwin, has occurred more recently; if such low flows were to recur in the future, the consequences would be severe for a region where more than 70% of energy is supplied by hydropower. A priori considerations suggest the use of statistical long-memory models for predicting River Paraguay water-levels, and some preliminary results from their use are presented.

  11. Growth and production of the copepod community in the southern area of the Humboldt Current System

    Directory of Open Access Journals (Sweden)

    R. Escribano

    2015-02-01

    Full Text Available Zooplankton production is a critical issue for understanding marine ecosystem structure and dynamics, however, its time-space variations are mostly unknown in most systems. In this study, estimates of copepod growth and production (CP in the coastal upwelling and coastal transition zones off central-southern Chile (∼35–37° S were obtained from annual cycles during a 3 year time series (2004, 2005, and 2006 at a fixed shelf station and from spring–summer surveys during the same years. C-specific growth rates (g varied extensively among species and under variable environmental conditions; however, g values were not correlated to either near surface temperature or copepod size. Copepod biomass (CB and CP were higher within the coastal upwelling zone (−2 year−1 with a~mean annual P/B ratio of 2.7. We estimated that CP could consume up to 60% of the annual primary production (PP in the upwelling zone but most of the time is around 8%. Interannual changes in CB and CP values were associated with changes in the copepod community structure, the dominance of large-sized forms replaced by small-sized species from 2004 to 2006. This change was accompanied by more persistent and time extended upwelling during the same seasonal period. Extended upwelling may have caused large losses of CB from the upwelling zone due to an increase in offshore advection of coastal plankton. On a larger scale, these results suggest that climate-related impacts of increasing wind-driven upwelling in coastal upwelling systems may generate a negative trend in zooplankton biomass.

  12. 76 FR 71935 - Humboldt-Toiyabe National Forest, Carson Ranger District, Nevada and California, Bordertown to...

    Science.gov (United States)

    2011-11-21

    ... and Verdi, Nevada. 1. December 6th, 2011 4:30-6:30 p.m., Cold Springs Regional Park, Grand Room 3355 White Lake Parkway in Cold Springs, Nevada 89508. 2. December 8th, 2011 4:30--6:30 p.m., Verdi Elementary School, 250 Bridge Street, Verdi, Nevada 89523. It is important that reviewers provide their...

  13. H11919: NOS Hydrographic Survey , Humboldt Bay, California, 2008-08-27

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe...

  14. Colonial life under the Humboldt Current System: deep-sea corals from O'Higgins I seamount La vida colonial bajo el sistema de la corriente de Humboldt: corales de aguas profundas en el monte submarino O'Higgins I

    Directory of Open Access Journals (Sweden)

    Juan I Cañete

    2012-07-01

    Full Text Available A benthic community constituted by an assemblage of at least four species of deep-sea corals collected in only one trawl carried-out on the summit of the O'Higgins I seamount, central Chile. The corals were collected in only one trawl carried-out during a Chilean-Japanese cruise onboard the R/V" Koyo Maru" in December 29, 2004. Presence of oxygenated and cold Antarctic Intermediate Water (>400 m depth on the plateau was recorded under of the Equatorial Subsurface Water associated to the oxygen-minimum zone (OMZ, Se describe una comunidad bentónica constituida por un ensamble de cuatro especies de corales de profundidad recolectados mediante un lance de arrastre efectuado sobre el margen de la meseta del monte submarino O'Higgins I, Chile central. Sobre la meseta se detectó la presencia de agua oxigenadas frías correspondientes al Agua Intermedia Antártica (>400 m de profundidad y sobre ésta, el Agua Ecuatorial Subsuperficial asociada a la zona de mínimo de oxígeno (OMZ, <1 mL O2 L-1. La fauna muestra un origen biogeográfico de tipo subantártico sumado a la presencia de fauna típica del margen continental de la zona central de Chile. Este ensamble está representado por dos especies de Antipataria (Leiopathes sp. y Chrysopathes sp., una especie no identificada de la familia Paragorgiidae y una especie perteneciente a la familia Isididae (Acanella chilensis. Este estudio muestra que este ensamble de corales de profundidad provee un hábitat crítico para el camarón nailon (Heterocarpus reedi, crustáceo de importancia pesquera. La presencia de este crustáceo más algunos peces como el alfonsino (Beryx splendens y orange roughy (Hoplostethus atlanticus podrían atraer la atención de la industria sobre estas frágiles, singulares y escasamente conocidas comunidades bentónicas chilenas y por lo tanto se requiere con urgencia acciones para su conservación.

  15. NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: Eureka (CA) WFO - Humboldt and Del Norte Counties

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This digital elevation model (DEM) is a part of a series of DEMs produced for the National Oceanic and Atmospheric Administration Office for Coastal Management's Sea...

  16. 78 FR 33047 - Humboldt-Toiyabe National Forest, Carson Ranger District Mt. Rose Ski Tahoe-Atoma Area...

    Science.gov (United States)

    2013-06-03

    ... miles west of the intersection of Mt. Rose Highway (Nevada State Route 431) and U.S. 395, immediately... analysis would be most helpful if received within 30 days of the publication of this notice in the Federal... gradients (totaling approximately 6.0 acres). The existing Atoma building and associated parking lot, will...

  17. 77 FR 67391 - Notice of Proposed Supplementary Rules on Public Land in Water Canyon, Humboldt County, NV

    Science.gov (United States)

    2012-11-09

    ... Management Agreement for Water Canyon was a collaborative effort undertaken among the BLM, the Nevada... have an annual effect of $100 million or more on the economy. They would not adversely affect in a material way the economy, productivity, competition, jobs, the environment, public health, or safety, or...

  18. 77 FR 26317 - Exemption of Material for Proposed Disposal Procedures for the Humboldt Bay Power Plant, Unit 3...

    Science.gov (United States)

    2012-05-03

    ... meters) of hazardous waste, soil, and debris containing low-activity radioactive debris generated during... disposal zone). The engineered features include an engineered cover, liners and leachate monitoring systems.... Need for Proposed Action The subject waste material consists of hazardous waste, soil, and...

  19. 76 FR 55937 - Sheldon National Wildlife Refuge, Washoe and Humboldt Counties, NV, and Lake County, OR; Draft...

    Science.gov (United States)

    2011-09-09

    ..., sport fishing, and hunting; continuing fishing and hunting coordination with the States; improving... spring brooks, basalt cliffs and canyons; emergent marshes; juniper, mountain mahogany, and...

  20. Humboldt Goes to the Labour Market: How Academic Higher Education Fuels Labour Market Success in the Czech Republic

    Science.gov (United States)

    Pabian, Petr; Sima, Karel; Kyncilova, Lucie

    2011-01-01

    The Czech Republic is one of the post-communist countries where the transformation from late industrial to knowledge economies and knowledge societies was complicated by the simultaneous transformations from communist centrally planned economies to democratic regimes and market economies. Furthermore, the transformation of higher education itself…

  1. 77 FR 71396 - Humboldt-Toiyabe National Forest; Nevada and California Greater Sage Grouse Bi-State Distinct...

    Science.gov (United States)

    2012-11-30

    ... encroachment, and climate change. Purpose and Need for Action The purpose of the project is to conserve.../Vegetation Management; and Renewable Energy Development The proposed regulatory mechanisms for these resource... Renewable Energy Developments which would be new resource areas. The LRMP and RMP amendments will...

  2. Locomotion and behavior of Humboldt squid, Dosidicus gigas, in relation to natural hypoxia in the Gulf of California, Mexico.

    Science.gov (United States)

    Gilly, William F; Zeidberg, Louis D; Booth, J Ashley T; Stewart, Julia S; Marshall, Greg; Abernathy, Kyler; Bell, Lauren E

    2012-09-15

    We studied the locomotion and behavior of Dosidicus gigas using pop-up archival transmitting (PAT) tags to record environmental parameters (depth, temperature and light) and an animal-borne video package (AVP) to log these parameters plus acceleration along three axes and record forward-directed video under natural lighting. A basic cycle of locomotor behavior in D. gigas involves an active climb of a few meters followed by a passive (with respect to jetting) downward glide carried out in a fins-first direction. Temporal summation of such climb-and-glide events underlies a rich assortment of vertical movements that can reach vertical velocities of 3 m s(-1). In contrast to such rapid movements, D. gigas spends more than 80% of total time gliding at a vertical velocity of essentially zero (53% at 0±0.05 m s(-1)) or sinking very slowly (28% at -0.05 to -0.15 m s(-1)). The vertical distribution of squid was compared with physical features of the local water column (temperature, oxygen and light). Oxygen concentrations of ≤20 μmol kg(-1), characteristic of the midwater oxygen minimum zone (OMZ), can influence the daytime depth of squid, but this depends on location and season, and squid can 'decouple' from this environmental feature. Light is also an important factor in determining daytime depth, and temperature can limit nighttime depth. Vertical velocities were compared over specific depth ranges characterized by large differences in dissolved oxygen. Velocities were generally reduced under OMZ conditions, with faster jetting being most strongly affected. These data are discussed in terms of increased efficiency of climb-and-glide swimming and the potential for foraging at hypoxic depths.

  3. 77 FR 1900 - Endangered and Threatened Wildlife and Plants; 90-Day Finding on a Petition To List the Humboldt...

    Science.gov (United States)

    2012-01-12

    ..., slender body with relatively large rounded ears, short limbs, and bushy tail (Clark et al. 1987, p. 1...), and great horned owls (Bubo virginianus). Bull and Heater (2001, p. 3), in their northeastern Oregon... northern spotted owl (Strix occidentalis caurina) and marbled murrelet (Brachyramphus marmoratus), which...

  4. Emergence of a new arbovirus disease in Brazil. III. Isolation of Rocio virus from Psorophora Ferox (Humboldt, 1819).

    Science.gov (United States)

    de Souza Lopes, O; de Abreu Sacchetta, L; Francy, D B; Jakob, W L; Calisher, C H

    1981-02-01

    A newly described flavivirus was responsible for a large encephalitis epidemic in São Paulo State, Brazil. The etiologic agent, Rocio virus, was isolated from human patients and sentinel mice. The natural history of the virus is unknown although presumed to be arthropod-borne. Rocio virus was isolated from a single pool containing 19 Psorophora ferox of 47 pools (283 specimens) of this species tested. The positive pool contained 16 deplete, 2 gravid, and 2 engorged mosquitoes. No isolations were made from 2183 pools of other species. The positive pool was collected during the year of the epidemic at the same approximate time and place where vertebrate isolations were made.

  5. 75 FR 67620 - Temporary Security Zones; San Francisco Bay, Delta Ports, Monterey Bay and Humboldt Bay, CA

    Science.gov (United States)

    2010-11-03

    ... cruise ship, tanker or HIV that is underway, anchored, or moored within the San Francisco Bay and Delta..., within 500 yards ahead, astern and extending 500 yards along either side of any cruise ship, tanker or..., astern and extending 500 yards along either side of any cruise ship, tanker or HIV that is...

  6. On the control of magnetic perturbing field onboard landers: the Magnetometer Protection program for the ESA ExoMars/Humboldt MSMO magnetometer experiment

    DEFF Research Database (Denmark)

    Menvielle, M.; Primdahl, Fritz; Brauer, Peter

    as characterizing its sub-surface. Magnetic fields are generated by electric currents in the planetary space environment, induced currents in the planetary interior and possibly remanent magnetism. In consequence, hardly any other single physical quantity can be used in such a variety of studies related...

  7. Irrigation drainage in and near Stillwater, Humboldt, and Fernley Wildlife Management Areas and Carson Lake, West-Central Nevada, 1988-90 : Part II effects on wildlife

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report discusses the affects of irrigation induced contaminants on fish, wildlife, and human health near Stillwater Wildlife Management Area. In 1988, the U.S....

  8. SHRIMP-RG U-Pb isotopic systematics of zircon from the Angel Lake orthogneiss, East Humboldt Range, Nevada: is this really Archean crust? REPLY

    Science.gov (United States)

    Premo, Wayne R.

    2010-01-01

    The comments from McGrew and Snoke are well received and their concerns for the interpretations in our paper (Premo et al., 2008), which questions the original contention that the Angel Lake orthogneiss is an Archean rock, are many and varied—all of which we will attempt to address. As they point out, this issue is an important one as this particular crustal exposure may delimit the southwestern extent of the Archean Wyoming province (Foster et al., 2006; Mueller and Frost, 2006), which has implications for the true crustal evolution of this region of the Great Basin and perhaps more importantly its relationship (if any) to the location of the world-class gold deposits of north-central Nevada (e.g., Howard, 2003).

  9. Translocation and radiotelemetry monitoring of black-tailed marmosets, Callithrix (Mico melanura(É. Geoffroy in Humboldt, in a wildlife rescue operation in Brazil

    Directory of Open Access Journals (Sweden)

    AAB. Marques

    Full Text Available Five black-tailed marmoset Callithrix (Mico melanura (Primates - Callitrichidae individuals were monitored by radiotelemetry as part of a project on translocated wildlife affected by flooding the Manso River reservoir in the state of Mato Grosso, western Brazil (14° 52' S and 55° 48' W. The animals were monitored for eight months from October 2000 through August 2001. Only one death was recorded among the translocated animals. Two pairs established their home ranges in the new area, after some exploratory behavior. The new home range sizes varied from 0.72 to 4.27 km². The home ranges of male and female overlapped in the case of both pairs by 0.59 to 2.30 km². Trips were always made in pairs and not individually. The results indicate the feasibility of a successful translocation program for this species, as long as the animals are translocated to a similar habitat nearby.

  10. Data on streamflow and quality of water and bottom sediment in and near Humboldt Wildlife Management Area, Churchill and Pershing Counties, Nevada, 1998-2000

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This study was initiated to expand upon previous findings that indicated concentrations of dissolved solids, arsenic, boron, mercury, molybdenum, selenium, and...

  11. An annotated catalogue of Recent Pectinoidea (Mollusca, Pectinidae and Propeamussiidae) type material in the Museum of Natural History, Humboldt University, Berlin

    NARCIS (Netherlands)

    Dijkstra, H.H.; Köhler, F.

    2008-01-01

    This paper lists 22 pectinoid types (21 primary and one secondary) and three potential syntypes in the Museum of Natural History (ZMB) in Berlin. Eight lectotypes are designated herein for the stabilization of taxonomic names: Pecten aequatorialis, Pecten australis, Pecten clathratus, Camptonectes g

  12. Ground-water conditions and effects of mine dewatering in Desert Valley, Humboldt and Pershing Counties, northwestern Nevada, 1962-91

    Science.gov (United States)

    Berger, D.L.

    1995-01-01

    Desert Valley is a 1,200-square-mile, north- trending, structural basin, about 30 miles northwest of Winnemucca, Nevada. Unconsolidated basin-fill deposits exceeding 7,000 feet in thickness constitute the primary ground-water reservoir. Dewatering operations at an open-pit mine began in the Spring of 1985 in the northeast part of Desert Valley. Ground-water withdrawal for mine dewatering in 1991 was greater than three times the estimated average annual recharge from precipitation. The mine discharge water has been allowed to flow to areas west of the mine where it has created an artificial wetlands. This report documents the 1991 hydrologic conditions in Desert Valley and the change in conditions since predevelopment (pre-1962). It also summarizes the results of analyzing the simulated effects of open-pit mine dewatering on a basin-wide scale over time. Water-level declines associated with the dewatering have propagated north and south of the mine, but have been attenuated to the west due to the infiltration beneath the artificial wetlands. Maximum water-level declines beneath the open pits at the mine, as of Spring 1991, are about 300 feet. Changes in the hydrologic conditions since predevelopment are observed predominantly near the dewatering operations and the associated discharge lakes. General ground-water chemistry is essentially unchanged since pre- development. On the basis of a ground-water flow model used to simulate mine dewatering, a new equilibrium may slowly be approached only after 100 years of recovery from the time mine dewatering ceases.

  13. Archeologies of Globalization. European Reflections on Two Phases of Accelerated Globalization in Cornelius de Pauw, Georg Forster, Guillaume-Thomas Raynal and Alexander von Humboldt

    Directory of Open Access Journals (Sweden)

    Ette, Ottmar

    2012-04-01

    Full Text Available In our present globalized world, an attempt to reflect on the “Archeology of Globalization” confronts us with a decisive question: Globality seems to be a singular phenomenon, the inevitable outcome of a teleological history which conforms our present. But can we think it as a plurality? Can we retrace this history in other form as a linear progression? By exploring European discussions that took place between the last third of the eighteenth and the mid-nineteenth centuries and which reflected on globalization, I will try to expose another development of this phenomenon. My focus emphasizes the very specific dynamics, modes of representation, and reflections that set up not an archeology but archaeologies of globalization: a world-consciousness that recognizes the patterns of movement and relationality that constitutes it, transforming itself into knowledge about how to live together in difference.

    En nuestro mundo actual globalizado, el intento de reflexionar sobre la “arqueología de la globalización” nos confronta con una pregunta fundamental: la Globalidad parece ser un fenómeno singular, el resultado inevitable de una historia teleológica que conforma nuestro presente, pero, ¿podemos pensarla como una pluralidad? ¿podemos reconstruir su historia de otra forma que en una progresión lineal? Al explorar discusiones europeas que ocurrieron entre el ultimo tercio del siglo XVIII y la primera mitad del siglo XIX y en las cuales se reflexionó sobre la globalización, intentaré exponer otro desarrollo de este fenómeno. Mi enfoque enfatiza precisamente las dinámicas específicas, los modos de representación y las reflexiones que constituyen no una arqueología, sino arqueologías de la globalización: una conciencia mundial que reconoce los patrones de movimiento y de relacionalidad que la constituyen, transformándose en un conocimiento sobre cómo vivir juntos en diferencia.

  14. Map showing mineral-resource potential of the King Range and Chemise Mountain Instant Study Areas, Humboldt and Mendocino counties, California

    Science.gov (United States)

    McLaughlin, R.J.; Sorg, D.H.; Ohlin, H.N.; Beutner, E.C.

    1981-01-01

    The potential for economic development of energy-related or metallic mineral resources in the King Range and Chemise Mountain Instant Study Areas is low to moderate as indicated by geologic, geophysical, and geochemical investigations.

  15. SHRIMP-RG U-Pb isotopic systematics of zircon from the Angel Lake orthogneiss, East Humboldt Range, Nevada: Is this really archean crust?

    Science.gov (United States)

    Premo, Wayne R.; Castineiras, Pedro; Wooden, Joseph L.

    2008-01-01

    New SHRIMP-RG (sensitive high-resolution ion microprobe-reverse geometry) data confirm the existence of Archean components within zircon grains of a sample from the orthogneiss of Angel Lake, Nevada, United States, previously interpreted as a nappe of Archean crust. However, the combined evidence strongly suggests that this orthogneiss is a highly deformed, Late Cretaceous monzogranite derived from melting of a sedimentary source dominated by Archean detritus. Zircon grains from the same sample used previously for isotope dilution-thermal ionization mass spectrometry (ID-TIMS) isotopic work were analyzed using the SHRIMP-RG to better define the age and origin of the orthogneiss. Prior to analysis, imaging revealed a morphological variability and intragrain, polyphase nature of the zircon population. The SHRIMP-RG yielded 207Pb/206Pb ages between ca. 2430 and 2580 Ma (a best-fit mean 207Pb/206Pb age of 2531 ± 19 Ma; 95% confidence) from mostly rounded to subrounded zircons and zircon components (cores). In addition, several analyses from rounded to subrounded cores or grains yielded discordant 207Pb/206Pb ages between ca. 1460 and ca. 2170 Ma, consistent with known regional magmatic events. All cores of Proterozoic to latest Archean age were encased within clear, typically low Th/U (206Pb/238U ages between 72 and 91 Ma, consistent with magmatic ages from Lamoille Canyon to the south. An age of ca. 90 Ma is suggested, the younger 206Pb/238U ages resulting from Pb loss. The Cretaceous and Precambrian zircon components also have distinct trace element characteristics, indicating that these age groups are not related to the same igneous source. These results support recent geophysical interpretations and negate the contention that the Archean-Proterozoic boundary extends into the central Great Basin area. They further suggest that the world-class gold deposits along the Carlin Trend are not underlain by Archean cratonal crust, but rather by the Proterozoic Mojave province and Neoproterozoic and Paleozoic metasedimentary sequences dominated by detritus derived from Late Archean sources rather than Proterozoic sources, as is evident farther to the south in the Ruby Mountains.

  16. 东太平洋茎柔鱼的耳石微结构%Statolith microstructure analysis of the Humboldt squid (Dosidicus gigas) in the eastern Pacific Ocean

    Institute of Scientific and Technical Information of China (English)

    刘必林; 陈新军; 李建华

    2016-01-01

    根据采集于东太平洋哥斯达黎加、秘鲁和智利外海的茎柔鱼耳石样本,分析了其生长纹、标记轮和其他异常结构.结果显示,耳石生长纹由明暗相间的环纹组成,按照生长纹宽度的不同可分为后核心区、暗区和外围区3个明显的生长区.通过对后核心区和暗区生长纹的计数显示,哥斯达黎加、秘鲁和智利外海3个海区的茎柔鱼仔鱼的年龄分别约为26、32和33日龄,稚鱼的年龄分别约为86、84和88日龄.茎柔鱼的耳石微结构中存在7类标记轮,它们的形成与茎柔鱼自身的内源节律(孵化、交配、产卵等)和外部环境压力(温度骤变、捕食者攻击等)等因素有关.研究还在个别茎柔鱼的耳石中发现一些不规则的异常结构(副核心、附生长纹、附中心)和生长纹方向颠倒的现象,推断它们的形成可能是由于外力作用使得耳石被破坏或耳石脱离原先的位置所造成的.

  17. 秘鲁外海茎柔鱼繁殖生物学研究%Reproduction of the Humboldt squid (Dosidicus gigas) off Peru

    Institute of Scientific and Technical Information of China (English)

    刘必林; 陈新军; 陈海刚; 胡贯中; 李建华

    2016-01-01

    根据我国鱿钓渔船2008年1月至2010年10月在秘鲁外海采集的2 489尾茎柔鱼样本,对其繁殖生物学内容进行了分析.结果表明,渔获以雌性个体为主,雌雄比例为3.99∶1.渔获物成熟个体所占比例较小,雌、雄分别为10.4%和21.3%,但各月均有成熟雌性个体出现,说明茎柔鱼全年产卵.茎柔鱼Ⅰ~Ⅳ期性腺指数随着性腺成熟度等级增加而不断增大(P<0.05),Ⅴ期时随着生殖作用的进行性腺指数较Ⅳ期有所下降.缠卵腺重与缠卵腺长呈明显的幂函数关系.茎柔鱼Ⅰ~Ⅳ期缠卵腺指数随着性腺成熟度等级增加而不断增大(P<0.05),Ⅴ期时随着排卵作用进行缠卵腺指数较Ⅳ期有所下降.成熟个体比率与胴长拟合Logistic曲线显示,雌性茎柔鱼性成熟胴长为539 mm,雄性为507 mm.

  18. Energy landscape of the reactions governing the Na+ deeply occluded state of the Na+/K+-ATPase in the giant axon of the Humboldt squid.

    Science.gov (United States)

    Castillo, Juan P; De Giorgis, Daniela; Basilio, Daniel; Gadsby, David C; Rosenthal, Joshua J C; Latorre, Ramon; Holmgren, Miguel; Bezanilla, Francisco

    2011-12-20

    The Na(+)/K(+) pump is a nearly ubiquitous membrane protein in animal cells that uses the free energy of ATP hydrolysis to alternatively export 3Na(+) from the cell and import 2K(+) per cycle. This exchange of ions produces a steady-state outwardly directed current, which is proportional in magnitude to the turnover rate. Under certain ionic conditions, a sudden voltage jump generates temporally distinct transient currents mediated by the Na(+)/K(+) pump that represent the kinetics of extracellular Na(+) binding/release and Na(+) occlusion/deocclusion transitions. For many years, these events have escaped a proper thermodynamic treatment due to the relatively small electrical signal. Here, taking the advantages offered by the large diameter of the axons from the squid Dosidicus gigas, we have been able to separate the kinetic components of the transient currents in an extended temperature range and thus characterize the energetic landscape of the pump cycle and those transitions associated with the extracellular release of the first Na(+) from the deeply occluded state. Occlusion/deocclusion transition involves large changes in enthalpy and entropy as the ion is exposed to the external milieu for release. Binding/unbinding is substantially less costly, yet larger than predicted for the energetic cost of an ion diffusing through a permeation pathway, which suggests that ion binding/unbinding must involve amino acid side-chain rearrangements at the site.

  19. Cloud amount/frequency, NITRATE and other data from A. V. HUMBOLDT from 1971-04-13 to 1971-06-12 (NCEI Accession 9000080)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The water depth and other data available in this accession was scanned from a publication. The data was submitted by Deutsche Akademe der Wissenschaften zu Berlin....

  20. Serving Many Masters: The PhD on the Labour Market, the Everlasting Need of Inequality, and the Premature Death of Humboldt.

    Science.gov (United States)

    Enders, Jurgen

    2002-01-01

    Surveyed German doctoral degree holders to examine the processes and outcomes of doctoral training and their impact on subsequent careers and work affiliations. Found a positive outcome of the Ph.D. on the labor market, and that selection for doctoral training is biased by social origin while later career attainment among Ph.D. holders is not. (EV)

  1. Dieta del guácharo Steatornis caripensis Humboldt, 1817 (Aves: Steatornithidae) en el Parque Nacional Natural Chingaza, Cundinamarca –Colombia

    OpenAIRE

    Rojas Lizarazo, Gina Liliana

    2012-01-01

    Se estudió la dieta de una colonia de guácharos Steatornis caripensis en la cueva ubicada a 2.870m. en la R.F.P. de los Ríos Blanco y Negro, zona de amortiguación del P.N.N. Chingaza (Cundinamarca), desde abril hasta diciembre de 2011. Se determinaron los frutos consumidos por S. caripensis y se realizaron análisis proximales para establecer el contenido nutricional de la pulpa de cada uno de los componentes de la dieta del ave. La identificación del material recolectado permitió establecer q...

  2. LiDAR-based landslide hazard modeling using PISA-m, SHALSTAB, and SMORPH, Freshwater Creek and Ryan Slough watershed, Humboldt County, California

    Science.gov (United States)

    Weppner, E.; Hoyt, J.; Haneberg, W. C.

    2008-12-01

    We evaluated the performance of three spatially distributed slope stability models implemented using a LiDAR digital elevation model (DEM) as part of a Total Maximum Daily Load (TMDL) sediment source study in a steep forested watershed in northern California. The geologic setting consists primarily of deformed, deeply incised, and heavily weathered weak sedimentary rocks and highly sheared metamorphic melange (with small amounts of broken formation) covered by Quaternary surficial deposits and colluvium. Topographic input for all three models was a 1-m LiDAR DEM of the watershed that was re-sampled to 4 m to avoid computational problems with SHALSTAB and eliminate complications arising from both short wavelength features (such as fallen logs and tree stumps) and random topographic noise. We assessed the performance of each model by 1) comparison of model output with landslides identified on aerial photographs and 2) comparison of model results with each other. Each of the two sub-watersheds was analyzed separately because of different geology and inventory data sources. Both PISA-m and SHALSTAB identified 75% of the inventoried landslides. SMORPH correctly identified 99% of the inventoried landslides, but at the cost of predicting more than three times as much unstable ground as PISA-m and SHALSTAB (25% versus 8% of the watershed). The degree of overlap between unstable areas predicted by all three models ranged only from 4% to 25% of the area predicted to be unstable, reflecting differences in the mechanics and/or empirical relationships embodied by each model. PISA-m, the only one of the three models capable of doing so, was also used to simulate the effects of clear-cut logging by reducing the input root strength estimates in areas covered by mature forest.

  3. Filosofía, conocimiento y lenguaje en Wilhelm von Humboldt, Ángel Amor Ruibal y Antonio Domínguez Rey.

    OpenAIRE

    Jiménez Redondo, Manuel

    2008-01-01

    Amor Ruibal pasa del griego a interesarse por la lingüística indoeuropea en general; y del hebreo a interesarse por las lenguas orientales en general. Desde la escolástica y con ese impresionante trasfondo de conocimiento filológico, practica un desmontaje completo de la escolástica y de la filosofía moderna en el sentido de que en ese desmontaje empieza ya a resonar lo que en medios husserlianos era el retorno a Grecia y a la tradición desde la problemática suscitada por Husserl. A mí se me ...

  4. Physical and chemical profile data collected for an oceanographic survey of Humboldt Bay, California, September 1961 - September 1962 (NODC Accession 7100792)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data collection is a publication available from the NOAA Central Library. There is currently no digital representation of these data or this publication...

  5. 2014 NOAA Ortho-rectified Below Mean High Water Color Mosaic of Port of Humboldt and Eureka, California: Integrated Ocean and Coastal Mapping Product

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains ortho-rectified mosaic tiles, created as a product from the NOAA Integrated Ocean and Coastal Mapping (IOCM) initiative. The source imagery...

  6. Aquatic biota monitoring on the Humbolt River, Nevada, in relation to mine dewatering discharges

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Anthropogenic sources of contamination have the potential to adversely affect the Humboldt River and its terminal wetlands at the Humboldt Wildlife Management Area,...

  7. 75 FR 39705 - Notice of Temporary Closures on Public Lands in Northwestern Elko County, NV

    Science.gov (United States)

    2010-07-12

    ... Office, Elko, Nevada within the Owyhee, Rock Creek, and Little Humboldt Wild Horse Herd Management Areas... effect on the Owyhee, Rock Creek and Little Humboldt Wild Horse HMAs from 12:01 a.m. PST on Tuesday, July... INFORMATION: This temporary closure affects public land in the Owyhee, Rock Creek and Little Humboldt...

  8. Analysis of Tobyhanna Army Depot’s Radio Frequency Identification (RFID) Pilot Program: RFID as an Asset Management Tool

    Science.gov (United States)

    2005-06-01

    Florian Lohff, Naree Tubpun, Lei Xu, and Zhisong Zhang, RFID in the Automotive Industry, Institut für Wirtschaftsinformatik Humboldt University Berlin...Xu, and Zhisong Zhang, RFID in the Automotive Industry, Institut für Wirtschaftsinformatik Humboldt University Berlin, July 2004, p. 7. 10 19 Dick... Wirtschaftsinformatik Humboldt University Berlin, July 2004. Buss, Dale. The Race to RFID. Chief Executive. New York: November 2004, Issue 203. Chase, Richard B

  9. Buhne Point Shoreline Erosion Demonstration Project. Volume 4. Appendices H-L.

    Science.gov (United States)

    1987-08-01

    alinement for rows of wind reducing devices like sand fencing, brush rows and vegetation is perpendicular to the effective prevailing wind. This optimum...substrate stability and trap moving sand. Sand fencing was alined perpendicular to the effective prevailing wind which was determined to be North...John Murray Humboldt County Leon Hamilton Humboldt County Pete Petterson Cal Trans District 01 Rick Storre Humboldt Bay Harbor District 1. Meeting

  10. Influência do pinheiro (Pinus caribaea) sobre a fauna do solo na Amazônia.

    OpenAIRE

    Bandeira,Adelmar Gomes; Souza, Paulo Celso S.

    1982-01-01

    Na Amazônia vêm-se ultimamente devastando grandes áreas para implantação de monoculturas de essências madeireiras e pastagens, usando-se geralmente espécies exóticas. Pinus caribae, por seu rápido crescimento, tem sido uma das espécies mais cultivadas na região sem que se tenha, no entanto, levado em conta as consequências que isso acarreta ao meio ambiente. Algumas idéias a este respeito foram fundamentadas por observações sobre a fauna do solo em culturas dessa e de outras espécies vegetais...

  11. Inhibición de la replicación del virus de inmunodeficiencia humana por extractos de taninos de Pinus caribaea Morelet

    Directory of Open Access Journals (Sweden)

    Ignacio Juan Ruibal Brunet

    2003-08-01

    Full Text Available Diferentes concentraciones de 6 extractos de corteza de Pinus caribaea Morelet var. caribaea se enfrentaron a 2 dosis de virus en un ensayo in vitro, sobre células MT4; la actividad antiviral se midió por ensayo inmunoenzimático de captura de proteína 24 del virus. Todas las fracciones mostraron actividad citotóxica moderada y solo una fue altamente tóxica. La fracción 02 mostró un alto porcentaje de inhibición de la replicación viral, en relación con la dosis viral y la concentración del producto, con un índice de selectividad de 100, pero son necesarios estudios adicionales sobre la identificación de la estructura química para definir el mecanismo de acción del producto.Six different fractions from the bark of Pinus caribae Moralet var. caribae were faced in five different concentrations against two viral doses (MOI 0,1 y 0,01 in a vitro assay on MT4 cell lines; the antiviral activity was measured by p24 Ag capture ELISA assay (DAVIH Agp24. All the fractions showed a mild cytotoxicity activity and only one fraction showed the highest cytotoxicity activity. The fraction 02 had the highest percentage of viral replication inhibition, correlated with the viral dose and the product concentration, having a selectivity rate of 100; however, more research about the chemical structure of active compounds, and possible mechanisms of action are needed.

  12. Continuing Professional Development in Higher Education: The Role of the Scholarship of Teaching and Learning

    Science.gov (United States)

    Elton, Lewis

    2009-01-01

    It is argued that Humboldt's original definition of "scholarship" ("Wissenschaft"), as well as Humboldt's concept of the purpose of a university, continue to be relevant--with appropriate adaptations. They should be extended to include not only a unity between the practice of teaching and learning and research into teaching and…

  13. 78 FR 54909 - Notice of Availability of the Proposed Winnemucca District Resource Management Plan and Final...

    Science.gov (United States)

    2013-09-06

    ... by the BLM in Humboldt, Pershing, and parts of Lander, Lyon, Churchill, and Washoe counties, Nevada... of Agriculture, Humboldt County, Pershing County, Washoe County, City of Winnemucca, and the N-2... Winnemucca Boulevard, Winnemucca, Nevada. Interested persons may also review the Proposed RMP/Final EIS...

  14. Bildung as a Powerful Tool in Modern University Teaching

    Science.gov (United States)

    Olesen, Mogens Noergaard

    2009-01-01

    In this paper we will demonstrate how powerful "Bildung" is as a tool in modern university teaching. The concept of "Bildung" was originally introduced by the German philosopher Immanuel Kant (Kant 1787, 1798, 1804) and the Prussian lawyer and politician Wilhelm von Humboldt (Humboldt 1792, Bohlin 2008). From 1810 "Bildung" was a key concept in…

  15. 76 FR 20843 - Security Zone; Increase of Security Zones Under 33 CFR 165.1183 From 100 to 500 Yards; San...

    Science.gov (United States)

    2011-04-14

    ..., Monterey Bay, and Humboldt Bay, CA. Once a tanker, cruise ship, or HVA is anchored or moored within the... Bay, and Humboldt Bay, CA. Once a tanker, cruise ship, or HVA is anchored or moored within the...) Definitions. The following definitions apply to these sections--(1) Cruise ship means any vessel over...

  16. Alexander von Humboldt’s Footnotes: “Networks of Knowledge” in the Sources of the 1826 Essai politique sur l’île de Cuba

    Directory of Open Access Journals (Sweden)

    Anja Werner

    2014-08-01

    Full Text Available Zusammenfassung Alexander von Humboldts Fußnoten waren ihrer Zeit weit voraus, obwohl sie kaum den heutigen akademischen Standards entsprechen. Dieser Artikel untersucht die Fußnoten in Humboldts Essai politique sur l’île de Cuba (1826. Zwar ist es nicht immer leicht, die manchmal recht geheimnisvollen Verweise zu entschlüsseln, dennoch lohnt sich der Versuch: Humboldts Fußnoten geben nicht nur Auskunft über seine umfassenden Netzwerke des Wissens. Sie verweisen auch auf Auseinandersetzungen verschiedener Gelehrter über Humboldts Schriften. Schließlich beinhalten sie Humboldts Reaktionen auf solche Auseinandersetzungen. Eine Untersuchung von Humboldts Fußnoten erlaubt es folglich dem Leser, mehr über Humboldt den Wissenschaftler aber auch Humboldt den Mensch zu erfahren. Abstract When it comes to footnotes, Alexander von Humboldt was ahead of his times even though his references leave much to be desired by today’s academic standards. This article examines the footnotes of Humboldt’s Essai politique sur l’île de Cuba (1826. While it is not always easy to decipher his sometimes cryptic references, the undertaking is worthwhile: Humboldt’s footnotes do not only reveal his vast networks of knowledge. They also provide glimpses of ongoing, contemporary disputes among different scholars that involve Humboldt’s writings. They also present Humboldt’s reactions to such disputes. Exploring Humboldt’s footnotes consequently allows the reader to access both Humboldt the scholar and Humboldt the human being. Résumé Quand il s’agit de notes, Alexandre de Humboldt était en avance sur son temps, même si ses références laissent beaucoup à désirer par rapport aux normes universitaires d’aujourd’hui. Cet article examine les notes de l’Essai politique sur l’île de Cuba (1826. Même s’il n’est pas toujours facile de déchiffrer ses références parfois cryptiques, l’entreprise vaut la peine: les notes de Humboldt

  17. Legon Journal of the Humanities: Editorial Policies

    African Journals Online (AJOL)

    For such editions, a call for papers (CFP) is announced in a preceding number of the ... Jane Ande, Professor, Department of Accounting, Faculty of Management ... and Cultures, Department of Asian and African Studies, Humboldt University, ...

  18. Lossist lossiks ehk ajaloo paradoks = From a palace into a palace, or a historical paradox / Harry Liivrand

    Index Scriptorium Estoniae

    Liivrand, Harry, 1961-

    2012-01-01

    Berliinis ülesehitatavast kuningalossist, mille ametlikuks nimeks saab Berliini loss/Humboldt-Foorum (rekonstruktsiooniprojekti autor Francesco Stella). Lammutati Vabariigi Palee (Palast der Republik), mis ehitati aastail 1973-1976, peaarhitekt Heinz Graffunder

  19. [Mari Laanemets. Zwischen westlicher Moderne und sowjetischer Avantgarde. Inofizielle Kunst in Estland 1969-1978] / Mara Traumane

    Index Scriptorium Estoniae

    Traumane, Mara

    2013-01-01

    Arvustus: Laanemets, Mari. Zwischen westlicher Moderne und sowjetischer Avantgarde. Inofizielle Kunst in Estland 1969-1978. (Humboldt-Schriften zur Kunst- und Bildgeschichte, Bd. 14.9 Berlin: Gebr. Mann 2011

  20. Oceanographic station data from bottle casts from the BIBB and other platforms from multiple Ocean Weather Station (OWS) in the North Atlantic Ocean and North Pacific Ocean 13 April 1968 to 11 July 1969 (NODC Accession 6900853)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Oceanographic station data were collected from the BIBB, GRESHAM, and HUMBOLDT within a 1-mile radius of Ocean Weather Station D (4400N 04100W), E (3500N 04800W), H...

  1. Strengths, Weaknesses, Opportunities and Threats: A SWOT analysis of the ecosystem services framework

    CSIR Research Space (South Africa)

    Bull, JW

    2016-02-01

    Full Text Available Science (SAMS), Scotland n Stockholm Resilience Centre, Sweden o PBL Netherlands Environmental Assessment Agency, The Hague, The Netherlands p Dalton Koss HQ, Melbourne, Australia q Lab of Landscape Ecology, Geography Institute, Humboldt...

  2. 77 FR 43222 - Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for the Tidewater...

    Science.gov (United States)

    2012-07-24

    ..., Humboldt, Mendocino, Sonoma, Marin, San Mateo, Santa Cruz, Monterey, San Luis Obispo, Santa Barbara...-2 Pomponio Creek, MAR-5 Bolinas Lagoon, SLO-1 Arroyo de la Cruz, SLO-12 Oso Flaco Lake, LA-1...

  3. Download this PDF file

    African Journals Online (AJOL)

    tion (Homby and Symon 1994, Marshall and Rossman 1999). Individual ... Another participant in the same group implied that women did not plan or use their time ..... Charite, Humboldt University of Berlin. Germany. Hermann Feldmeier H.

  4. 78 FR 21906 - Six Rivers National Forest, California, Trinity Summit Range Assessment Environmental Impact...

    Science.gov (United States)

    2013-04-12

    ... Humboldt County, California within the upper Mill Creek and Tish Tang a Tang Creek watersheds to the east..., herbaceous plant communities exist within forest openings near the headwaters of Horse Linto, Mill and...

  5. Lossist lossiks ehk ajaloo paradoks = From a palace into a palace, or a historical paradox / Harry Liivrand

    Index Scriptorium Estoniae

    Liivrand, Harry, 1961-

    2012-01-01

    Berliinis ülesehitatavast kuningalossist, mille ametlikuks nimeks saab Berliini loss/Humboldt-Foorum (rekonstruktsiooniprojekti autor Francesco Stella). Lammutati Vabariigi Palee (Palast der Republik), mis ehitati aastail 1973-1976, peaarhitekt Heinz Graffunder

  6. From the Vacuum to the Universe

    CERN Document Server

    2016-01-01

    This Humboldt Kolleg focuses on key issues in particle physics and related fields: the physics of particle collider and precision experiments, how they complement each other and connections between particle physics, gravity and the large scale cosmology structure of the Universe. The meeting is designed to promote synergies and new collaboration between the different sub-fields. The Humboldt Kolleg brings together Humboldt "family" (prize winners, professors and research fellow alumni) together with younger researchers (prospective future research fellows) and other senior scientists. The Kolleg will emphasize and promote communication and new collaborations between participants. A main purpose of the meeting is to promote awareness of the Humboldt Foundation to young researchers in the central European region.

  7. Physical and chemical data from bottle casts and visual observations in the North and South Atlantic Ocean as part of the Data Archaeology and Rescue project, from 1970-08-27 to 1976-11-19 (NCEI Accession 9900036)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Physical and chemical data were collected using bottle casts and visual observation from the ALEXANDER VON HUMBOLDT in the North and South Atlantic Ocean from August...

  8. [Mari Laanemets. Zwischen westlicher Moderne und sowjetischer Avantgarde. Inofizielle Kunst in Estland 1969-1978] / Mara Traumane

    Index Scriptorium Estoniae

    Traumane, Mara

    2013-01-01

    Arvustus: Laanemets, Mari. Zwischen westlicher Moderne und sowjetischer Avantgarde. Inofizielle Kunst in Estland 1969-1978. (Humboldt-Schriften zur Kunst- und Bildgeschichte, Bd. 14.9 Berlin: Gebr. Mann 2011

  9. 36 CFR 200.2 - Field organization.

    Science.gov (United States)

    2010-07-01

    ... Kalispell. Gallatin Bozeman. Helena Helena. Kootenai Libby. Lewis and Clark Great Falls. Lolo Missoula... McCall. Salmon Salmon. Sawtooth Twin Falls. Targhee St. Anthony. Nevada Humboldt Elko. Toiyabe... Eugene. Winema Klamath Falls. Washington Colville Colville. Gifford Pinchot Vancouver. Mount...

  10. Oceanographic station data from bottle casts from the CHINCOTEAGUE and other platforms from multiple Ocean Weather Station (OWS) in the North Atlantic Ocean and North Pacific Ocean 26 November 1968 to 14 January 1969 (NODC Accession 6900424)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Oceanographic station data were collected from the CHINCOTEAGUE, DUANE, HAMILTON, HUMBOLDT, and MELLON within a 1-mile radius of Ocean Weather Station B (5630N...

  11. 75 FR 19994 - Green Diamond Resource Company, California Timberlands Division, Forest Management Habitat...

    Science.gov (United States)

    2010-04-16

    ..., global climate change, and environmental justice. Please direct any comments to the USFWS contact listed... Fish and Wildlife Service Green Diamond Resource Company, California Timberlands Division, Forest Management Habitat Conservation Plan and Incidental Take Permit, Del Norte and Humboldt Counties,...

  12. A workflow model for digital theses and dissertations

    OpenAIRE

    Müller, Uwe

    2003-01-01

    Humboldt University at Berlin was one of the first German universities offering its PhD students to accomplish their duty to publish their theses and dissertations in an electronic way. To date Humboldt's document server is considered a national benchmark concerning technology and publication policy. Documents publicised on the document server satisfy strict quality standards and are mostly stored in an XML format which was generated from the original document source. Combined with the perm...

  13. Patterns of energy allocation to reproduction in three Amazonian fish species

    Directory of Open Access Journals (Sweden)

    Rodrigo N. dos Santos

    Full Text Available The study considered the influence of the hydrological cycle and gonadal development on the accumulation and use of energy in three fish species from an Amazonian flooded area. Fishes were sampled over a 24 hour period at monthly intervals between July 2004 and June 2005 using gillnets of different mesh sizes. Body cavity fat and gonadosomatic indices were determined, as well as energy content of gonads and muscles. Amongst the studied species, different means of energy allocation for reproduction were found: Acestrorhynchus falcirostris allocate energy from body cavity fat to its gonads; Pygocentrus nattereri uses mainly energy accumulated in the muscles for the process of gonadal maturation; and Hoplosternum littorale uses energy accumulated in their muscles and body cavity fat for reproductive processes. It is quite clear that the flood pulse regulates the gain and use of the energy reserves in fishes from the Amazonian floodplain.

  14. Cambios histomorfológicos en el ovario del pez capitán, Eremophilus mutisii Humboldt 1805 (Pisces: Trichomyteridae, durante el ciclo reproductivo anual,en la laguna del Muña, sistema río Bogotá, Colombia

    Directory of Open Access Journals (Sweden)

    Cala Cala Plutarco

    1982-03-01

    Full Text Available

    The principal aim of this investigation was to study the anual morpho-histological changes in the ovary of the fish capitan, Eremophilus mutisii, in the Rio Bogota basin in Colombia, with regard to the reproductive cycle, size of the mature fishes and seasonal changes in the environment. The fibs material was collected monthly. The gonads were fixed in Bouin's fixative. Subsequently they were washed several times in 70% ethanol. Transversal sections of about 5 cm in length, each of which produced 10 slides with 10 or so sections per slide, were taken from the center to the anterior portion of the right ovary of each fish, since no macroscopic significant differencie was observed in the oogenic process in the anterior, central and posterior portion of the ovary. The sections were dehydrated in tetrahydrofuran and embedded in paraffin. Sections were cut at 6 microns and stained with haematoxylin and eosin (H & E. The gonosomatic index (GSI or maturity index (MIl was calculated.

  15. j483hb.m77t and j483hb.h77t: MGD77T data and header files for single-beam bathymetry data for field activity J-4-83-HB in Humboldt Bay, California from 08/16/1983 to 08/19/1983

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with miniranger navigation data was collected as part of the U.S. Geological Survey cruise J-4-83-HB. The cruise was conducted in...

  16. j483hb.m77t and j483hb.h77t: MGD77T data and header files for single-beam bathymetry data for field activity J-4-83-HB in Humboldt Bay, California from 08/16/1983 to 08/19/1983

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Single-beam bathymetry data along with miniranger navigation data was collected as part of the U.S. Geological Survey cruise J-4-83-HB. The cruise was conducted in...

  17. Larvicidal effect of dried leaf extracts from Pinus caribaea against Aedes aegypti (Linnaeus, 1762 (Diptera: Culicidae Efeito larvicida dos extratos de folhas secas de Pinus caribaea contra Aedes aegypti (Linnaeus, 1762 (Diptera: Culicidae

    Directory of Open Access Journals (Sweden)

    Luiz Alberto Kanis

    2009-08-01

    Full Text Available In this study, the larvicidal activity of dried leaf extracts from Pinus caribaea Morelet against Aedes aegypti was evaluated for the first time. Pinus caribaea extracts were obtained by macerating dried leaves in alkaline hydroethanol, ethanol and acetone solutions followed by evaporation under reduced pressure. The lignin content was quantified using the thioglycolic acid complexation method. Lethality bioassays (LC50 and LC90 were carried out in accordance with the recommendations of the World Health Organization. The results showed that the acetone extract from Pinus caribaea was more active, and that larvicidal activity was associated with lignin concentration.Neste trabalho foi avaliada pela primeira vez a atividade larvicida contra Aedes aegypti de extratos obtido a partir de folhas secas de Pinus caribae. Os extratos de Pinus caribaea foram obtidos a partir da maceração de folhas secas em solução hidroetanólica alcalina, etanol e acetona, seguido de evaporação sob pressão reduzida. O teor de lignina foi quantificado usando o método de complexação com ácido tioglicóliclo. Os ensaios de letalidade foram conduzidos de acordo com a recomendação da Organização Mundial da Saúde. Os resultados demonstraram que o extrato obtido com acetona foi mais ativo, e a atividade larvicida esta associada com a concentração de ligninas.

  18. A time-calibrated, multi-locus phylogeny of piranhas and pacus (Characiformes: Serrasalmidae) and a comparison of species tree methods.

    Science.gov (United States)

    Thompson, Andrew W; Betancur-R, Ricardo; López-Fernández, Hernán; Ortí, Guillermo

    2014-12-01

    The phylogeny of piranhas, pacus, and relatives (family Serrasalmidae) was inferred on the basis of DNA sequences from eleven gene fragments that include the mitochondrial control region plus 10 nuclear genes (two exons and eight introns). The new data were obtained for a representative sampling of 53 specimens, collected from all major South American rivers, accounting for over 40% of the valid species and all genera excluding Utiaritichthys. Two fossil calibration points and relaxed-clock Bayesian analyses were used to estimate the timing of diversification. The new multilocus dataset also is used to compare several species-tree approaches against the results obtained using the concatenated alignment analyzed under maximum likelihood and Bayesian inference. Individual gene trees showed substantial topological discordance, but analyses based on concatenation and Bayesian and maximum likelihood-based species trees approaches converged onto a single phylogeny. The resulting phylogenetic hypothesis is robust and supports a division of the family into three major clades, consistent with previous results based on mitochondrial DNA alone. The earliest branching event separated a "pacu" clade (Colossoma, Mylossoma and Piaractus) from the rest of the family in the Late Cretaceous (over 68 Ma). The other two clades, that contain most of the diversity, are formed by the "true piranhas" (Metynnis, Pygopristis, Pygocentrus, Pristobrycon, Catoprion, and Serrasalmus) and the Myleus-like pacus (the Myleus clade). The "true" piranha clade originated during the Eocene (∼53 Ma) but the most recent diversification of flesh-eating piranhas within the genera Serrasalmus and Pygocentrus did not start until the Miocene (∼17 Ma). A comparison of species tree approaches indicates that most methods tested are consistent with results obtained by concatenation, suggesting that the gene-tree incongruence observed is mild and will not produce misleading results under simple concatenation

  19. La recepción humboldtiana de Cristóbal Colón

    Directory of Open Access Journals (Sweden)

    Alejandro Cheirif Wolosky

    2014-08-01

    Full Text Available Abstract This article explores Alexander von Humboldt’s reception of Christopher Columbus as a historical figure, mainly in his Relation historique and in his Examen critique. First of all, it explores what Humboldt’s biographers have referred to as a “zweiter Kolumbus” (a second Columbus. It then proceeds to trace the history of a “poetic imagination” and a “mythical geography” attributed by Humboldt to Christopher Columbus. Resumen Este artículo explora la recepción realizada por Alexander von Humboldt de la figura de Cristóbal Colón, principalmente en su Relation historique y en su Examen critique. En primer lugar, el artículo explora lo que los biógrafos de Humboldt han llamado “ein zweiter Kolumbus” (un segundo Colón. En segundo lugar, se traza la historia de la edificación humboldtianna de una “imaginación poética” y de una “geografía mítica” atribuidas por Humboldt a Cristóbal Colón. Résumé Cet article explore la réception réalisée par Alexander von Humboldt de la figure de Christophe Colomb, principalement dans sa Relation historique et dans son Examen critique. En premier lieu, il explore ce que les biographes de Humboldt ont appelé “ein zweiter Kolumbus” (un deuxième Colomb. En deuxième lieu, il trace l’histoire d’une “imagination poétique” et d’une “géographie mythique”, attribuées par Humboldt à Christophe Colomb.

  20. Humboldtian science, Creole meteorology, and the discovery of human-caused climate change in South America.

    Science.gov (United States)

    Cushman, Gregory T

    2011-01-01

    The belief that human land use is capable of causing large-scale climatic change lies at the root of modern conservation thought and policy. The origins and popularization of this belief were deeply politicized. Alexander von Humboldt's treatment of the Lake Valencia basin in Venezuela and the desert coast of Peru as natural laboratories for observing the interaction between geophysical and cultural forces was central to this discovery, as was Humboldt's belief that European colonialism was especially destructive to the land. Humboldt's overt cultivation of disciples was critical to building the prestige of this discovery and popularizing the Humboldtian scientific program, which depended fundamentally on local observers, but willfully marginalized chorographic knowledge systems. In creating new, global forms of environmental understanding, Humboldtian science also generated new forms of ignorance.

  1. Caracterização citogenética, viabilidade de pólen e hibridação artificial em gérbera Chromosome number, pollen viability and gerbera hybridization

    Directory of Open Access Journals (Sweden)

    Raquel DL Cardoso

    2009-03-01

    Full Text Available Este trabalho foi conduzido com o objetivo de confirmar o número de cromossomos em cultivares de Gerbera hybrida Hort., determinar o número de cromossomos em acessos não comerciais de Gerbera sp., avaliar a viabilidade de pólen e a possibilidade de cruzamentos entre cultivares e acessos não comerciais. Foram coletados ápices de raízes e pólen de seis cultivares e de sete acessos não comerciais. O material coletado foi corado com carmim acético a 45%. A contagem dos cromossomos foi realizada em células metafásicas intactas e a estimativa de viabilidade de pólen realizada por meio da contagem do número de grãos de pólen viáveis e não viáveis. A possibilidade de cruzamento entre as cultivares e entre as cultivares e acessos não comerciais foi avaliada por meio da hibridação entre os genitores femininos, cv. Terra Fame e acesso A8, e masculinos, cvs. Cariba e Azteca. Todos os acessos contiveram cinqüenta cromossomos, indicando que a variação morfológica nos capítulos (simples, semidobrado e dobrado não é devida a mutações cromossômicas numéricas ou a poliploidia. A viabilidade do pólen variou de 87,67% a 99,27%. A formação de sementes foi de 4,46% nos cruzamentos entre cultivares, e de 50% entre o A8 e as cultivares. A compatibilidade genômica entre os acessos, a alta viabilidade do pólen e o sucesso na obtenção de sementes entre acessos comercias e não comerciais, revela a possibilidade de produção de híbridos com novas combinações alélicas e transferência de caracteres desejáveis dos acessos não comerciais para os comerciaisThis work was conducted to confirm the chromosomes number of Gerbera hybrida Hort. cultivars, to determine the chromosomes number in the non commercial accessions of Gerbera sp., and to estimate the pollen viability and the possibility of crossings among different accessions. Root-tip and pollen were collected from six cultivars and seven non commercial accessions. The collected

  2. Rules of the Road, Western Rivers.

    Science.gov (United States)

    1972-08-01

    ATLANTIC COAST 82.127 Crescent City Harbor. A 82.129 Arcata-Humboldt Bay.82.5 All harbors on the coast of 82.131 Bodega and Tomales Bays. Maine, New...outer end of Humboldt Bay South Jetty. §82.131 Bodega and Tomales Bays. A line drawn from the northwestern tip of Tomales Point to Tomales Point Lighted...Horn Buoy 2; thence to Bodega Harbor Approach Lighted Gong Buoy BA; thence to the southernmost extremity of Bodega Head. §82.133 San Francisco Harbor

  3. „Halbmedienkompetenz?“ – Überlegungen zur kritischen Dimension von Medienkompetenz

    Directory of Open Access Journals (Sweden)

    Thomas Damberger

    2013-03-01

    Full Text Available Der folgende Beitrag befasst sich mit der Mehrdimensionalität und der Normativität des Medienkompetenzbegriffs. Dabei wird deutlich, dass Medienkompetenz im pädagogischen Sinne gerade auf die kritische Dimension nicht verzichten kann. Diese Unverzichtbarkeit wird epistemologisch im Rückgriff auf Schopenhauer, Humboldt und Kant hergeleitet.The following article deals with the multidimensionality of the concept of media literacy. It will be clear that an educational media literacy can not abandon the critical dimension. This indispensability is derived using the epistemology of Schopenhauer, Humboldt and Kant.

  4. Role of the Library Media Specialist in Greening the Curriculum: A Community-Based Approach to Teaching 21st Century Skills outside of the School Library through the Practice of Urban Agriculture

    Science.gov (United States)

    Torrise, Michelle L.

    2010-01-01

    Some of the author's most valuable experiences as a library media specialist (LMS) were not in a school library. Rather, they were on the streets of Chicago, in community gardens, and on the rooftops of buildings in Humboldt Park, where she was hired by the University of Illinois Community Informatics Initiative as a graduate assistant and LMS in…

  5. 78 FR 59919 - Pershing County Water Conservation District; Notice of Application Accepted for Filing With the...

    Science.gov (United States)

    2013-09-30

    ... County Water Conservation District. e. Name of Project: Humboldt River Hydropower Project. f. Location... Patch dam, gates, and penstocks. The hydropower development would include: (1) A 16-foot by 16-foot... responsibilities. m. Due to the project works already existing and the limited scope of the proposed project site...

  6. Bildung - Then and Now in Danish High School and University Teaching and How to Integrate Bildung into Modern University Teaching

    DEFF Research Database (Denmark)

    Olesen, Mogens Nørgaard

    2010-01-01

    I the article the classical concept of Bildung as introduced by Humboldt and Kant is discussed and it is shown what impact Bildung has had in Danish high school and university teaching since 1800. Furthermore it is shown how Bildung in a new version, strictly connected to philosophy of science...

  7. Von Whorf zu Malotki - Eine Reise durch Hopi-Raum und Hopi-Zeit

    DEFF Research Database (Denmark)

    Robering, Klaus

    2014-01-01

    discussion of classical German philosophy of language (Hamann, Herder, Humboldt) prepares the stage for relating Whorf’s views to those of Leo Weisgerber’s ‘Inhaltbezogene Grammatik’, then the dominant trend in German linguistics. The studies of ‘Hopi space’ and ‘Hopi time’, by Ekkehart Malotki (a disciple...

  8. 77 FR 71842 - Exemption of Material for Proposed Disposal Procedures at the US Ecology Idaho Resource...

    Science.gov (United States)

    2012-12-04

    ... COMMISSION Exemption of Material for Proposed Disposal Procedures at the US Ecology Idaho Resource..., at the US Ecology Idaho (USEI) Resource Conservation and Recovery Act (RCRA) Subtitle C hazardous... 70.17 Exemption of Humboldt Bay Power Plant Waste For Disposal at US Ecology, Inc'' (2) Email dated...

  9. 40 CFR 80.215 - What is the scope of the geographic phase-in program?

    Science.gov (United States)

    2010-07-01

    ... Sioux Nevada Elko Eureka Humboldt Lander Lincoln White Pine Oregon Baker Crook Gilliam Grant Harney..., and Alaska. (2) In addition, the following counties within the states identified in paragraph (a)(2)(i... are included in the GPA: (i) The list of counties follows: Arizona Apache Coconino Gila...

  10. 76 FR 82296 - Environmental Impacts Statements; Notice of Availability

    Science.gov (United States)

    2011-12-30

    ...: Eugene T. Flannery (415) 701-5598. EIS No. 20110431, Draft EIS, USFS, NV, Geothermal Leasing on the Humboldt-Toiyabe National Forest, To Facilitate the Development and Production of Geothermal Energy, Ely... of Mexico Outer Continental Shelf (OCS) Oil and Gas Lease Sales: 2012-2017 Western Planning...

  11. Las rubiáceas: no sólo café

    Directory of Open Access Journals (Sweden)

    Arturo Acero Pizarro

    2014-03-01

    Full Text Available Rubiacea de Colombia. Guía ilustrada de géneros. Humberto Mendoza, Bernardo R. Ramírez P. y Luis Carlos Jiménez. Editorial del libro reseñado: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, 2004, 351 págs.

  12. Bakhtinian "Bildung" and the Educational Process: Some Historical Considerations

    Science.gov (United States)

    Brandist, Craig

    2017-01-01

    The article considers the theme of "Bildung" and the educational process in the work of Mikhail Bakhtin, with reference to the philosophical tradition in which his ideas stand. This tradition is traced through the work of Hegel, von Humboldt and the Marburg neo-Kantian Paul Natorp. It is shown that Bakhtin's central essays on the novel…

  13. Kolmest Tallinna Ülikooli Humboldti stipendiaadist / Tiina Tamkivi

    Index Scriptorium Estoniae

    Tamkivi, Tiina

    2014-01-01

    Tallinna Ülikooli külastas jaanuaris teadlasi toetava fondi Alexander von Humboldt Stiftung president ja Berliini Tehnikaülikooli keemiaprofessor Helmut Schwarz. Tallinna Ülikoolist on Humboldti stipendiumi pälvinud kolm teadlast - professor Peeter Järvelaid, ajaloolane Juhan Kreem ja kunstiajaloolane Kersti Markus, kes lisavad artiklis ka omapoolsed selgitused

  14. Los primeros pasos de una ciencia republicana emancipatoria en la América andina

    National Research Council Canada - National Science Library

    Leoncio LÓPEZ-OCÓN

    2011-01-01

    .... Entre esas acciones cabe destacar la promoción de la enseñanza técnica, la importación de científicos de Europa y el apoyo dado a los naturalistas europeos que recorrieron las nuevas naciones andinas siguiendo las huellas de Alejandro de Humboldt...

  15. 78 FR 41390 - Pershing County Water Conservation District; Notice of Application Tendered for Filing with the...

    Science.gov (United States)

    2013-07-10

    ..., nearby the Town of Lovelock, Pershing County, Nevada. The project would occupy 0.25 acre of Reclamation... Energy Regulatory Commission Pershing County Water Conservation District; Notice of Application Tendered...: Pershing County Water Conservation District. e. Name of Project: Humboldt River Hydro Power Project....

  16. The Food and Agriculture Organization, in its Reykjavik Declaration ...

    African Journals Online (AJOL)

    2005-06-06

    Jun 6, 2005 ... species to improve the modelling of the ecosystem and therefore its ... Humboldt Current off Peru and Chile (4–40°S), the. Californian Current .... 1994 to 2001 and. (f) tuna longline fisheries (foreign and South African) from 1996 to 2001 ... directed and tuna-directed, were introduced off South. Africa in 1994 ...

  17. "Bildung" and Intercultural Understanding

    Science.gov (United States)

    Bohlin, Henrik

    2013-01-01

    The concept of "Bildung", sometimes translated as self-cultivation, is located at the core of an influential tradition of educational thought. A key question concerns the relationship between "Bildung" and interculturality. Drawing on Wilhelm von Humboldt and Hans-Georg Gadamer, and on the so-called transformative learning…

  18. 76 FR 36148 - Notice of Inventory Completion: Fowler Museum at UCLA, Los Angeles, CA

    Science.gov (United States)

    2011-06-21

    ... National Park Service Notice of Inventory Completion: Fowler Museum at UCLA, Los Angeles, CA AGENCY... UCLA, Box 951549, Los Angeles, CA 90095-1549, telephone (310) 825- 1864. SUPPLEMENTARY INFORMATION... Fowler Museum at UCLA, Los Angeles, CA. The human remain was removed from Humboldt County, CA....

  19. The Lost Honour of the Social Dimension: Bologna, Exports and the Idea of the University

    Science.gov (United States)

    Holford, John

    2014-01-01

    In important respects, European ideas of the university have spread across the world. The principal "philosophical" statements on which this idea of the university is based (Humboldt and Newman) assumed the people inhabiting universities--as students--would come from the youth of a social elite. The outward-facing elements of the Bologna…

  20. "Turning the Sugar": Adult Learning and Cultural Repertoires of Practice in a Puerto Rican Community

    Science.gov (United States)

    Johnson, Laura Ruth; Stribling, Colleen; Almburg, Anne; Vitale, Gail

    2015-01-01

    This article examines the processes of knowledge acquisition and transmission among adults within two "communities of practice" in Humboldt Park/"Paseo Boricua," a Puerto Rican community located on Chicago's near-northwest side. In particular, we examine the ways in which two adult women engaged in learning processes and…

  1. [Reiner Nürnberg, Ekkehard Höxtermann, Martina Voigt. Elisabeth Schiemann 1881-1972. Vom AußBruch der Genetik und der Frauen in den UmBrüchen des 20. Jahrhunderts] / Monika von Hirschheydt

    Index Scriptorium Estoniae

    Hirschheydt, Monika von

    2015-01-01

    Arvustus: Nürnberg, Reiner, Höxtermann, Ekkehard, Voigt, Martina. Elisabeth Schiemann 1881-1972. Vom AußBruch der Genetik und der Frauen in den UmBrüchen des 20. Jahrhunderts. Beiträge eines Symposiums zum 200. Gründungsjubiläum der Humboldt-Universität Berlin. Rangsdorf: Basilisken-Presse 2014

  2. Zur Soziolinguistik in der Bundesrepublik Deutschland (Sociolinguistics in the Federal Republic of Germany)

    Science.gov (United States)

    Jachnow, Helmut

    1975-01-01

    Traces the history of sociolinguistic studies in West Germany from the early nineteenth century with Humboldt and reports on the state and purposes of sociolinguistic studies in present-day Federal Republic of Germany. Available from Liber Laeromedel, Box 1205, S-22105 Lund, Sweden (Text is in German.) (TL)

  3. Riqueza de mamíferos de grande e médio porte do Parque Nacional da Serra do Divisor (Acre, Brasil The richness of the large and medium-sized mammals of the Serra do Divisor National Park (Acre, Brazil

    Directory of Open Access Journals (Sweden)

    Armando Muniz Calouro

    1999-01-01

    Full Text Available The objective of the present study was to characterize the richness (number of species of large and medium-sized mammals, and the antropic threats in the Parque Nacional da Serra do Divisor (PNSD. In 31 days data were collected through direct observations or evidences (bones, hairs, vocalizations and tracks along pre-existing trails distributed in different types of vegetation. Wild mammals captured by local people were also considered. They were found 44 species of terrestrial mammals (with the exception of small mammals and bats and two species of cetaceans, representing 73% of the total predicted, according to the literature and information of local dwellers were registered in PNSD. They exist in the area two species classified by IUCN (1996 as "Endangered" [Cacajao calvus rubicundus (I. Geoffroy, 1806 and Priodontes maximus (Kerr, 1792] and five as "Vulnerable" [Ateles chamek (Humboldt, 1812, Callimico goeldii (Thomas, 1904, Lagothrix lagotricha poeppigii (Humboldt, 1812, Myrmecophaga tridactyla Linnaeus, 1758 and Inia geoffrensis (Blainville, 1817]. Given that subsistence and commercial hunting are common in the PNSD, mammals more affected by hunting [Ateles chamek (Humboldt, 1812, Lagothrix lagotricha (Humboldt, 1812, Tayassu pecari (Link, 1795] were observed only in the more remote areas such as Serra do Divisor, Rio Moa. In comparison with others areas, the results indicate that PNSD has high richness of the mammals, with special attention to the 14 primates species registered.

  4. Cool : karvased hipid ja sürrid hobusepead / Maris Meiesaar, Tiiu Laks

    Index Scriptorium Estoniae

    Meiessaar,Maris

    2008-01-01

    !". PÖFFi filme programmist "Crazy Cool: Põhja-Ameerika indie-filmid" - USA mängufilm "Humboldti maa" ("Humboldt Country"), režissöörid Darren Grodsky, Danny Jacobs, Kanada dokumentaalfantaasia "Minu Winnipeg" ("My Winnipeg"), režissöör Guy Maddin

  5. [Friedrich Theodor Althoff (1859-1908) and the German universities around 1900].

    Science.gov (United States)

    Ackerknecht, E H

    1988-05-28

    Usually the diplomat Wilhelm von Humboldt (1767-1835) is regarded as the creator of German supremacy in academic, especially medical education. Actually this role was played by the "bureaucrat" Friedrich Althoff (1839-1909), who directed German education from 1882 to 1907. His greatest accomplishment was the selection of the best professors.

  6. 82 FR 39535 - Safety Zone: PG&E Evolution, King Salmon, CA

    Science.gov (United States)

    2017-08-21

    ...-AA00 Safety Zone: PG&E Evolution, King Salmon, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final... Humboldt Bay in King Salmon, CA in support of the Pacific Gas and Electric Evolution that will be effective... workers, mariners, and other vessels transiting the area from the dangers associated with this evolution...

  7. DiaspoRican Art as a Space for Identity Building, Cultural Reclamation, and Political Reimagining

    Science.gov (United States)

    Rosario-Ramos, Enid M.; Tucker-Raymond, Eli; Rosario, Maria

    2017-01-01

    The lives of Puerto Ricans in the neighborhood of Humboldt Park, Chicago, are often situated in a complex social field shaped by transnational cultural and political border crossing. We argue that artistic practices in this neighborhood are integral to building community and individual identities grounded in local meanings of the Puerto Rican…

  8. "Bildung" and Intercultural Understanding

    Science.gov (United States)

    Bohlin, Henrik

    2013-01-01

    The concept of "Bildung", sometimes translated as self-cultivation, is located at the core of an influential tradition of educational thought. A key question concerns the relationship between "Bildung" and interculturality. Drawing on Wilhelm von Humboldt and Hans-Georg Gadamer, and on the so-called transformative learning…

  9. CONTEMPORARY HISTORY AND THE ART OF SELF-DISTANCING

    NARCIS (Netherlands)

    Den Hollander, Jaap

    2011-01-01

    The metaphor of historical distance often appears in discussions about the study of contemporary history. It suggests that we cannot see the past in perspective if we are too near to it. According to founding fathers like Ranke and Humboldt, temporal distance is required to discern historical "ideas

  10. 76 FR 19515 - California Disaster # CA-00170 Declaration of Economic Injury

    Science.gov (United States)

    2011-04-07

    ... determined to be adversely affected by the disaster: Primary Counties: Del Norte, Mendocino, San Luis Obispo, San Mateo, Santa Clara, Santa Cruz, Sonoma. Contiguous Counties: California: Alameda, Glenn, Humboldt, Kern, Kings, Lake, Marin, Merced, Monterey, Napa, San Benito, San Francisco, Santa Barbara,...

  11. Zur Soziolinguistik in der Bundesrepublik Deutschland (Sociolinguistics in the Federal Republic of Germany)

    Science.gov (United States)

    Jachnow, Helmut

    1975-01-01

    Traces the history of sociolinguistic studies in West Germany from the early nineteenth century with Humboldt and reports on the state and purposes of sociolinguistic studies in present-day Federal Republic of Germany. Available from Liber Laeromedel, Box 1205, S-22105 Lund, Sweden (Text is in German.) (TL)

  12. 76 FR 28066 - Notice of Intent To Repatriate a Cultural Item: Phoebe A. Hearst Museum of Anthropology...

    Science.gov (United States)

    2011-05-13

    ... Anthropology, University of California, Berkeley, Berkeley, CA AGENCY: National Park Service, Interior. ACTION... Phoebe A. Hearst Museum of Anthropology, University of California, Berkeley, Berkeley, CA, that meets the... Humboldt County, CA. The belt was donated to the Phoebe A. Hearst Museum of Anthropology at the...

  13. Navigation Rules, International-Inland

    Science.gov (United States)

    1977-05-01

    COAST 82.127 Crescent City Harbor. 82.5 All harbors on the coast of 82.129 Arcata-Humboldt Bay. Maine, New Hampshire, and 82.181 Bodega and Tomales Bays...thence to Bodega Harbor Approach Lighted Gong Buoy BA; thence to the southernmost extremity of Bodega Head. 1 82.133 San Francisco Harbor. A straight

  14. Belowground drivers of plant diversity

    NARCIS (Netherlands)

    Putten, Van Der Wim H.

    2017-01-01

    Long before Ernst Haeckel coined the term “ecology” in 1866, nature explorers, such as Alexander von Humboldt, observed that vegetation composition changes with climate. However, it still remains unclear what determines the local composition and species richness of vegetation. Understanding the

  15. 40 CFR 81.329 - Nevada.

    Science.gov (United States)

    2010-07-01

    ... Douglas County (part) Area outside Hydrographic Area 90 Elko County Esmeralda County Eureka County.../Attainment Carson City Churchill County Clark County Douglas County Elko County Esmeralda County Eureka... (part) remainder Douglas County Elko County Esmeralda County Eureka County Humboldt County Lander...

  16. "War on Waste": A Public-Education Campaign.

    Science.gov (United States)

    Larson, Mark A.; Massetti-Miller, Karen L.

    As part of a statewide campaign to increase both awareness of the problem of littering and illegal dumping, and participation in recycling activities, Humboldt County, California, began a recycling and antilittering education project in 1981. Pre- and postcampaign survey data suggest that the 9-month program, relying largely on television and…

  17. 78 FR 59055 - Notice of Realty Action: Modified Competitive Sealed-Bid Sale of Public Land at Schoolhouse Butte...

    Science.gov (United States)

    2013-09-25

    ... viability. Acceptance of the offer to purchase this parcel will constitute an application for conveyance of... for a buried fiber optic cable granted to Oregon- Idaho Utilities Inc., its successor or assignees, by... a road maintenance project (man camp and water well) granted to Humboldt County, its successor...

  18. Zum Ausgleich von generativer und energetischer Sprachbetrachtung (A Comparison of the "Generative" and "Energetic" Views of Language)

    Science.gov (United States)

    Weisgerber, Leo

    1972-01-01

    Discussion of two basic conceptions: Wilhelm von Humboldt's idea of language as energeia'' existing within and without man, and Noam Chomsky's idea of language generated by the speaker according to an innate apparatus. Revised version of lectures presented at the University of Bonn, West Germany in August 1971. (RS)

  19. Cool : karvased hipid ja sürrid hobusepead / Maris Meiesaar, Tiiu Laks

    Index Scriptorium Estoniae

    Meiessaar,Maris

    2008-01-01

    !". PÖFFi filme programmist "Crazy Cool: Põhja-Ameerika indie-filmid" - USA mängufilm "Humboldti maa" ("Humboldt Country"), režissöörid Darren Grodsky, Danny Jacobs, Kanada dokumentaalfantaasia "Minu Winnipeg" ("My Winnipeg"), režissöör Guy Maddin

  20. Zum Ausgleich von generativer und energetischer Sprachbetrachtung (A Comparison of the "Generative" and "Energetic" Views of Language)

    Science.gov (United States)

    Weisgerber, Leo

    1972-01-01

    Discussion of two basic conceptions: Wilhelm von Humboldt's idea of language as energeia'' existing within and without man, and Noam Chomsky's idea of language generated by the speaker according to an innate apparatus. Revised version of lectures presented at the University of Bonn, West Germany in August 1971. (RS)

  1. Communitarian Theory and Community Development in the United States.

    Science.gov (United States)

    Sites, William

    1998-01-01

    The example of Chicago's Humboldt Park, where there is reluctance to use political action in response to gentrification, shows the limitations of communitarian conceptions of community building, which emphasize self-help and consensus building but fail to acknowledge the need for political articulation of rights-based demands. (SK)

  2. Redwood forest conservation: where do we go from here?

    Science.gov (United States)

    Ruskin K. Hartley

    2012-01-01

    One hundred and nine years after the first redwoods were set aside in public ownership, the redwood movement has come a long way. For most of the public, "saving redwoods" has meant placing threatened giants in parks and reserves—Big Basin State Park (1902), Muir Woods National Monument (1908), Humboldt Redwoods State Park (1921), Redwood National Park (1968...

  3. Sediment yield response to sediment reduction strategies implemented for 10 years in watersheds managed for industrial forestry in northern California

    Science.gov (United States)

    Kate Sullivan

    2012-01-01

    For the past decade, the productive forestlands now owned and operated by the Humboldt Redwood Company have been managed with low impact practices designed to reduce sediment delivery according to voluntary agreements and regulatory requirements of state and federal agencies. These timberlands located in the erosive sedimentary terrain of the northern coast of...

  4. Using Scientific Information to Develop Management Strategies for Commercial Redwood Timberlands

    Science.gov (United States)

    Jeffrey C. Barrett

    2007-01-01

    In 1999, PALCO (Pacific Lumber Company), a private landowner, and the state and federal governments agreed to implement a unique Habitat Conservation Plan (HCP) on 89,000 hectares of commercial redwood and Douglas-fir timberlands in Humboldt County, California. The aquatics portion of the PALCO HCP contains a set of "interim" conservation strategies developed...

  5. Opfindelsen af naturen

    DEFF Research Database (Denmark)

    Thomsen, Torsten Bøgh

    2016-01-01

    Kritisk omtale og kontekstualisering af Andrea Wulfs, "The Invention of Nature: Alexander von Humboldt’s New World". Der er en direkte forbindelse imellem oplysningstidens naturforståelse og den nuværende klimakrisevirkelighed. Alexander von Humboldt opfandt ikke bare naturen, han påpegede også det...

  6. Cuadros y escrituras de la naturaleza

    Directory of Open Access Journals (Sweden)

    Pimentel, Juan

    2004-12-01

    Full Text Available To conmemorate Humboldt return journey to Europe means that of a double transference: we also celebrate how the New World was back to the Old, and how Nature back to the Book. Our focus is representation, an sphere where humboldtian descriptive literature plays a basic role. Here we study the relation between images and words, between Humboldt visual thinking and his narrative techniques in order to animate, giving life to nature. Views of Nature and Cosmos are the two main works in this field; Bernardin de Saint-Pierre, Goethe, and Aristotle, some of the keys we use to decode that descriptive literature.

    El aniversario del regreso de Humboldt a Europa es también el de una doble transferencia: el del Nuevo al Viejo Mundo y el de la Naturaleza al libro. Este trabajo se centra en la representación, esfera en la que la literatura descriptiva humboldtiana desempeña una labor fundamental. Estudiamos la relación entre la imagen y la palabra, entre el pensamiento visual de Humboldt y sus técnicas narrativas para animar y vivificar la naturaleza. Cuadros y Cosmos son las obras más destacadas en este terreno; Bernardin de Saint-Pierre, Goethe y Aristóteles, algunas de las claves que empleamos para descifrar dicha literatura descriptiva.

  7. [Reiner Nürnberg, Ekkehard Höxtermann, Martina Voigt. Elisabeth Schiemann 1881-1972. Vom AußBruch der Genetik und der Frauen in den UmBrüchen des 20. Jahrhunderts] / Monika von Hirschheydt

    Index Scriptorium Estoniae

    Hirschheydt, Monika von

    2015-01-01

    Arvustus: Nürnberg, Reiner, Höxtermann, Ekkehard, Voigt, Martina. Elisabeth Schiemann 1881-1972. Vom AußBruch der Genetik und der Frauen in den UmBrüchen des 20. Jahrhunderts. Beiträge eines Symposiums zum 200. Gründungsjubiläum der Humboldt-Universität Berlin. Rangsdorf: Basilisken-Presse 2014

  8. Environmental Assessment for Malmstrom Minuteman III Deactivation

    Science.gov (United States)

    2007-05-01

    Malle, Project Biologist, Earth Tech B.S., 1999, Environmental Biology , Humboldt State University, Arcata Years of Experience: 5 William Muir, Senior...went to court. This record, together with the general willingness of owners to grant entry for purposes that could not be divulged in detail, stands

  9. "Turning the Sugar": Adult Learning and Cultural Repertoires of Practice in a Puerto Rican Community

    Science.gov (United States)

    Johnson, Laura Ruth; Stribling, Colleen; Almburg, Anne; Vitale, Gail

    2015-01-01

    This article examines the processes of knowledge acquisition and transmission among adults within two "communities of practice" in Humboldt Park/"Paseo Boricua," a Puerto Rican community located on Chicago's near-northwest side. In particular, we examine the ways in which two adult women engaged in learning processes and…

  10. Environmental Impact Analysis Process. Environmental Assessment Air Force Small Launch Vehicle, Vandenberg Air Force Base, Edwards Air Force Base, and San Nicolas Island, CA

    Science.gov (United States)

    1991-05-01

    in California. Others are found at Crescent City, Humboldt, Fort Bragg, Point Reyes and Fort Ord. Although all coastal habitats are becoming rare...in riparian woodlands on VAFB (USAF, 1976d). Red-legged frog (Rana aurora ) and Southwestern pond turtle are known to frequent freshwater wetlands

  11. Loss of biodiversity in a conservation unit of the Brazilian Atlantic Forest: the effect of introducing non-native fish species.

    Science.gov (United States)

    Fragoso-Moura, E N; Oporto, L T; Maia-Barbosa, P M; Barbosa, F A R

    2016-02-01

    The introduction of species has become an important problem for biodiversity and natural ecosystem conservation. The lake system of the middle Rio Doce (MG, Brazil) comprises c. 200 lakes at various conservation states, of which 50 are located within the Rio Doce State Park (PERD). Previous studies had verified several of these lakes suffered non-native fishes introductions and the presence of these species needs for the implementation of actions aiming at not only their control but also the preservation of the native species. This study discusses the effects of non-native fish species in the largest conservation unit of Atlantic Forest in Minas Gerais, southeast of Brazil, using data from 1983 to 2010 distributed as follow: data prior to 2006 were obtained from previous studies, and data from September 2006 to July 2010 were obtained in Lake Carioca at four sampling stations using gillnets, seine nets and sieve. A total of 17 fish species was collected (2006-2010) of which five were introduced species. Among the small to medium size native species (30 to 2000 mm standard length) seven had disappeared, two are new records and one was recaptured. The non-native species Cichla kelberi (peacock bass) and Pygocentrus nattereri (red piranha) are within the most abundant captured species. Integrated with other actions, such as those preventing new introductions, a selective fishing schedule is proposed as an alternative approach to improve the conservation management actions and the local and regional biodiversity maintenance.

  12. Characterization of the fishes and of subsistence fishing in the Pantanal of Mato Grosso, Brazil.

    Science.gov (United States)

    de Oliveira, R D; de B Nogueira, F M

    2000-08-01

    Fishing is one of the oldest human activities in the Pantanal of Mato Grosso in Central Brazil. In the of Bento Gomes River Basin (Pantanal of Poconé) the presence of fishermen is very common. The objective of this study is to describe the fishing activity in the basin in view of the elaboration of proposals for the sustainable use of this natural resource. Of the 256 fishermen that were registered most are fishing for their subsistence (92%) and the rest (8%) are occasional fishermen (locally called "de lufada" fishermen). "Traíra" (Hoplias malabaricus) and "piranhas" (Serrasalmus marginatus, Serrasalmus spilopleura and Pygocentrus nattereri) were the species most frequently captured for human consumption. The fishing is more intensive during the ebb season and at the beginning of the drought season, when the waters begin to recede for the river channel, as the catch is facilitated by the concentration of fishes at the river margin. The fishermen and their families consume fish three to four times a week, twice a day. Fish meat is one of the only means of obtaining animal protein for dozens of poor families in the area. The number of fishermen, as well as the actual number of catches do not appear to compromise the natural fish stocks, although no specific capture criteria is obeyed by the fishing activity.

  13. Influences of German science and scientists on Melbourne Observatory

    Science.gov (United States)

    Clark, Barry A. J.

    The multidisciplinary approach of Alexander von Humboldt in scientific studies of the natural world in the first half of the nineteenth century gained early and lasting acclaim. Later, given the broad scientific interests of colonial Victoria's first Government Astronomer Robert Ellery, one could expect to find some evidence of the Humboldtian approach in the operations of Williamstown Observatory and its successor, Melbourne Observatory. On examination, and without discounting the importance of other international scientific contributions, it appears that Melbourne Observatory was indeed substantially influenced from afar by Humboldt and other German scientists, and in person by Georg Neumayer in particular. Some of the ways in which these influences acted are obvious but others are less so. Like the other Australian state observatories, in its later years Melbourne Observatory had to concentrate its diminishing resources on positional astronomy and timekeeping. Along with Sydney Observatory, it has survived almost intact to become a heritage treasure, perpetuating appreciation of its formative influences.

  14. Software as a Service: Herausforderungen bei der Einführung des Bibliothekssystems Alma in der Freien Universität Berlin

    Directory of Open Access Journals (Sweden)

    Jiri Kende

    2015-12-01

    Full Text Available Moderne Bibliothekssysteme werden zunehmend als Software as a Service (SaaS angeboten. Die Berliner Bibliotheken der Freien Universität Berlin, der Humboldt Universität, der Technischen Universität und der Universität der Künste haben für 2016 gemeinsam den Umstieg auf das cloudbasierte Bibliothekssystem Alma beschlossen. Der Aufsatz berichtet über die Herausforderungen während der zweijährigen Vertragsverhandlungen mit besonderem Augenmerk auf den Datenschutz.  Modern library management systems are increasingly offered as Software as a Service (SaaS.The libraries of the Free University Berlin, the Humboldt university, the Technical university and the University of Arts decided concertedly to move in 2016 to the cloud based next generation library management system Alma. The article reviews the challenges during the contract negotiations with a special focus on data protection.

  15. Identification and characterisation of foraging areas of seabirds in upwelling systems: biological and hydrographic implications for foraging at sea

    OpenAIRE

    Ludynia, Katrin

    2007-01-01

    This thesis investigates the foraging behaviour of three seabird species, the African penguin (Spheniscus demersus) and the Cape gannet (Morus capensis) in the Benguela upwelling system as well as the Peruvian booby (Sula variegata) in the Humboldt Current. Biological and hydrographic parameters were considered when evaluating the characteristics of foraging areas and the behaviour of the species studied. Foraging areas used by the birds as well as the birds' diving behaviour were assessed by...

  16. Simulation of windblown dust transport from a mine tailings impoundment using a computational fluid dynamics model

    OpenAIRE

    Stovern, Michael; Felix, Omar; Csavina, Janae; Kyle P. Rine; Russell, MacKenzie R.; Jones, Robert M; King, Matt; Betterton, Eric A.; Sáez, A. Eduardo

    2014-01-01

    Mining operations are potential sources of airborne particulate metal and metalloid contaminants through both direct smelter emissions and wind erosion of mine tailings. The warmer, drier conditions predicted for the Southwestern US by climate models may make contaminated atmospheric dust and aerosols increasingly important, due to potential deleterious effects on human health and ecology. Dust emissions and dispersion of dust and aerosol from the Iron King Mine tailings in Dewey-Humboldt, Ar...

  17. Modeling the emission, transport and deposition of contaminated dust from a mine tailing site

    OpenAIRE

    Stovern, Michael; Betterton, Eric A.; Sáez, A. Eduardo; Villar, Omar Ignacio Felix; Kyle P. Rine; Russell, MacKenzie R.; King, Matt

    2014-01-01

    Mining operations are potential sources of airborne particulate metal and metalloid contaminants through both direct smelter emissions and wind erosion of mine tailings. The warmer, drier conditions predicted for the Southwestern US by climate models may make contaminated atmospheric dust and aerosols increasingly important, due to potential deleterious effects on human health and ecology. Dust emissions and dispersion of contaminants from the Iron King Mine tailings in Dewey-Humboldt, Arizon...

  18. Reconstruction and comparison with behaviour therapeutic techniques of the 50s and 60s

    OpenAIRE

    Malach, Henry

    2010-01-01

    With his "Individual Therapy" (IT) Leonhard used a set of therapeutic techniques which had similarites with behavioural approaches of the same period. Following his appointment as ordinary professor for psychiatry and neurology at the Humboldt Universität Berlin in 1957 he developed this therapy with medical and psychological colleagues, facilitated by the foundation of a "psychotherapeutic department" (50 beds) at the Charité in 1959. Starting with the historic preconditions and Leonhard’...

  19. Theory and Application of a Class of Abstract Differential-Algebraic Equations

    OpenAIRE

    Pierson, Mark A

    2005-01-01

    We first provide a detailed background of a geometric projection methodology developed by Professor Roswitha Marz at Humboldt University in Berlin for showing uniqueness and existence of solutions for ordinary differential-algebraic equations (DAEs). Because of the geometric and operator-theoretic aspects of this particular method, it can be extended to the case of infinite-dimensional abstract DAEs. For example, partial differential equations (PDEs) are often formulated as abstract Cauchy ...

  20. Advancement of High Resolution Radar Polarimetry in Target Verses Clutter Detection, Discrimination, Classification: A. Basic Theory and Modeling of Polarimetric Clutter Phenomenology.

    Science.gov (United States)

    1988-07-15

    Humboldt award, and another 15,000 km by train (during the tough winter months 1987 Jan.-March) and airplane (from Noordkap to Lisbon, from Weston -Super...polarLmetry to target/clutter analysis was recognized Kannen (11 with deletions and addition to meet his- long ago. w. also note here that Copeland (1960...8217. 1960 Copeland classifies (syimnetrical) radar 1975 Poelman reports on using orthoonally targets by polarization properties. polarized returns to detect

  1. Undisturbed Sampling and Cyclic Load Testing of Sands,

    Science.gov (United States)

    1979-12-01

    34 by M.P. Romo Organista, J. Lysmer and H.B. Seed - 1977 UCB/EERC-77/02 "Soil-Structure Interaction Effects at the Humboldt Bay Power Plant in the...Sackman and J.M. Kelly - 197H (PB 292 357)A04 ’CR EEPC- 7 8/20 "Testing of a Wind Restraint for Aseismic Base Isolation," by J.M. Kelly and D.E. Chitty

  2. Die Medizinische Bibliothek der Charité - Universitätsmedizin Berlin – eine Bibliothek im Wandel / The Medical Library of the Charité - Universitaetsmedizin Berlin – a library in a time of change

    Directory of Open Access Journals (Sweden)

    Paepcke, Ulf

    2009-09-01

    Full Text Available The article starts with a brief outline of the history of the Medical Library of the Charité - University Medicine Berlin. It then describes the library’s organizational status within the Charité and its relation to the Free University and the Humboldt University of Berlin. Then follows a detailed description of its mission and tasks, the wide range of the different sources of information and other services it offers.

  3. Structure and variability of the Leeuwin current in the south eastern Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    Peter, B.N.; Sreeraj, P.; VimalKumar, K.G.

    flowing currents found along the southwest African coast (the Benguela Current) and the long Chile-Peru coast (the Humboldt Current), Where upwelling of cool nutrient - rich waters from below the surface results in some of the most productive... fisheries. Because of the Leeuwin Current, the continental shelf water of western Australia is warmer in winter than the corresponding regions off southern Africa and Chile in summer. The Leeuwin Current is also responsible for the presence of true...

  4. [Homicides in East Berlin from 1980 to 1989. Part I: victimology and phenomenology].

    Science.gov (United States)

    Wirth, Ingo; Strauch, Hansjürg

    2006-01-01

    At the Institute of Legal Medicine of the Humboldt-University in Berlin 8,580 autopsies were carried out in the period of analysis from 1980 to 1989 - including 139 homicides (= 1.6 %). The first part of this study deals with the victim-related analysis. Furthermore, the criminologically relevant aspects of the phenomenology of crime are described. Apart from the low frequency, the mainly short latency period and the low rate of homicides with removal of the victim are noteworthy.

  5. Abnormal breakdown of Stokes–Einstein relation in liquid aluminium

    Science.gov (United States)

    Li, Chen-Hui; Han, Xiu-Jun; Luan, Ying-Wei; Li, Jian-Guo

    2017-01-01

    Not Available Project supported by the National Basic Research Program of China (Grant No. 2011CB012900), the National Natural Science Foundation of China (Grant No. 51171115), the Natural Science Foundation of Shanghai City, China (Grant No. 10ZR1415700), the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20100073120008), and the Program for New Century Excellent Talents in Universities of China. This work is partially supported by Alexander von Humboldt Foundation.

  6. Conflict Management and Whole of Government: Useful Tools for U.S. National Security Strategy?

    Science.gov (United States)

    2012-04-01

    Sapir, Edward. “Culture, Genuine and Spurious.” The Ameri- can Journal of Sociology, Vol. 29, No. 4. 1924, pp. 401–429. 426 Saussure , Ferdinand de...Force Base, FL: De- fense Equal Opportunity Management Institute, 2008. 33. Sewall et al. 34. Ferdinand de Saussure , Course in General Linguistics...Horowitz, Donald. Ethnic Groups in Conflict. Berkeley, CA: University of California Press. 2000. Humboldt, Friedrich Wilhelm Christian Karl Ferdinand

  7. Pesca associada entre golfinhos e aves marinhas Feeding associations between dolphin and sea birds

    Directory of Open Access Journals (Sweden)

    Emygdio L. A. Monteiro-Filho

    1992-01-01

    Full Text Available Along ten years of study of a common dolphin from the brazilian coast, Sotalia brasiliensis Van Beneden, 1874, I could see some occasions of feeding associations of this dolphin with five species of birds, Sula leucogaster (Boddaert, 1783, Fregata magnificens Mathews, 1914, Sterna hirundinacea Lesson, 1831, Larus dominicanus Lichtenstein, 1823 and Phalacrocorax olivaceus Humboldt, 1895. The commonest association observed was between the dolphin and S. leucogaster, and in all the associations was characterized the commensalism, with advantaged to the birds.

  8. Berglinien im Vergleich

    OpenAIRE

    2013-01-01

    Der Artikel analysiert aus bildwissenschaftlicher und historischer Perspektive die unveröffentlichte Skizze zu einem Bergdiagramm aus dem handschriftlichen Nachlass Alexander von Humboldts. Das mehrfach beklebte Skizzenblatt stand im Zentrum klimageografischer Fragestellungen nach den Gründen für die weltweit unterschiedlich hohen Schneegrenzen in Gebirgen. Aufgrund des unfertigen, skizzenhaften Charakters des Diagramms lassen sich Fragen über den Forschungskontext des Diagramms, den epistemi...

  9. Efficacy of 28-day and 40-day Regimens of Sodium Stibogluconate (Pentostam) in the Treatment of Mucosal Leishmaniasis

    Science.gov (United States)

    1994-01-01

    Mediwaia Tropical Alexander von Humboldt. Universidad Penuana Cuavyetano Heredia. Limna. Peru: Hospital Regionaal del Casco. Cusco . Peru: IValher Reed...in the Department of Cusco , Peru. In a study done in India on the treatment of vis- Leishmaniasis is not endemic in these villages W ceral...phosphogluconate dehydrogenase. admitted to Cusco Regional Hospital ( Cusco . glucose phosphate isomerase. mannose phos- Peru) and administered Pentostam (20

  10. Environmental Assessment: Convert Slow Routes 300 and 301 to Instrument Routes

    Science.gov (United States)

    2007-07-01

    Esmeralda , Eureka, Humboldt, Lander, 6 Lincoln, Mineral, Nye, Pershing, and White Pine. Table 3-4 lists the air emissions for 7 AQCR 14 7 for 2001 and...24,547 2,666 2,491 232 7,389 2,109 Clark County 387,850 50,376 76,295 48,088 53,292 15,114 Elko County 86,764 6,601 8,234 839 13,722 6,039 Esmeralda

  11. Concepts of highly excited electronic systems

    CERN Document Server

    Berakdar, Jamal

    2006-01-01

    Jamal Berakdar is an outstanding young researcher who has accomplished in less than ten years remarkable contributions to the field. He is well acknowledged by the scientific community. PhD-thesis at University of Freiburg (Prof. Klar, 1994), Humboldt- and Research fellow at Atomic & Molecular Physics Laboratories, Australian National University; since 1998 researcher at Max-Planck Institute for Microstructure Physics in Halle, Germany.

  12. Asuncion y Superacion de la Estilistica en el Pensamiento de Amado Alonso. Poesia y Ontologia

    OpenAIRE

    Cowes, Hugo W.

    1995-01-01

    ESTE ENSAYO SE PROPONE MOSTRAR QUE EL PENSAMIENTO DE AMADO ALONSO SOBRE LOS DISCURSOS LIRICOS TIENE VIGENCIA ACTUAL AL MISMO TIEMPO QUE SU POSICION EN EL AMBITO DE LA CRITICA Y LA TEORIA LITERARIA DEL SIGLO XX. ALONSO INTRODUCE EN EL AMBITO DE LA CULTURA HISPANICA LA LLAMADA ESTILISTICA IDEALISTA: VOSSLER, HATZFELD, SPITZER, PERO AL MISMO TIEMPO INCORPORA A SU PENSAMIENTO LA TEORIA DE HUSSERL, BERGSON, CROCE, HUMBOLDT Y SAUSSURE. COMO LA ESTILISTICA, EL FORMALISMO RUSO Y EL NEW CRITICISM, ALO...

  13. Airborne Geophysics and Remote Sensing Applied to Study Greenland Ice Dynamics

    Science.gov (United States)

    Csatho, Beata M.

    2003-01-01

    Overview of project: we combined and jointly analysed geophysical, remote sensing and glaciological data for investigating the temporal changes in ice flow and the role of geologic control on glacial drainage. The project included two different studies, the investigation of recent changes of the Kangerlussuaq glacier and the study of geologic control of ice flow in NW Greenland, around the Humboldt, Petermann and Ryder glaciers.

  14. The impact of ocean deoxygenation on iron release from continental margin sediments

    OpenAIRE

    Scholz, Florian; McManus, James; Mix, Alan C; Hensen, Christian; Schneider, Ralph

    2014-01-01

    In the oceans’ high-nitrate–low-chlorophyll regions, such as the Peru/Humboldt Current system and the adjacent eastern equatorial Pacific1, primary productivity is limited by the micronutrient iron. Within the Peruvian upwelling area, bioavailable iron is released from the reducing continental margin sediments2. The magnitude of this seafloor source could change with fluctuations in the extension or intensity of the oxygen minimum zones3, 4. Here we show that measurements of molybdenum, urani...

  15. The type specimen of Anoura geoffroyi lasiopyga (Chiroptera: Phyllostomidae)

    Science.gov (United States)

    Arroyo-Cabrales, Joaquin; Gardner, A.L.

    2003-01-01

    In 1868, Wilhelm Peters described Glossonycteris lasiopyga, based on a specimen provided by Henri de Saussure and collected in Mexico. The type specimen was presumed to be among those housed in the collections of the Zoologisches Museum of the Humboldt Universitat in Berlin, Germany. Our study of one of Saussure?s specimens from Mexico, discovered in the collections of the Museum d?Histoire Naturelle, Geneva, Switzerland, demonstrates that it and not one of the Berlin specimens is the holotype.

  16. Turistas en el edén: La evolución literaria del paraíso

    OpenAIRE

    2012-01-01

    After the first explorations beyond the Herculean Columns took place, the Canary Islands turned to be identified with classical myths, and literature (Cairasco de Figueroa, A. de Viana), historiography (L. Torriani, Abreu Galindo, Viera y Clavijo), natural science (Humboldt), and travellers (O. M. Stone) located there the paradisiac fantasies of the Islands of the Blessed, the Hesperids, the Fortunate Islands, and the Elysean Fields. Such identification will serve as publicity for the tourist...

  17. Formats for Digital Preservation: A Review of Alternatives and Issues

    Science.gov (United States)

    2007-03-01

    color or greyscale).TIFF_G4 is limited to bitonal (pure black and white) images. SUPPORT FOR GRAPHIC EFFECTS AND TYPOGRAPHY Not applicable Not...Online Project at Uppsala University and the Royal Technology Library of Sweden, and the Humboldt University in Germany cited XML as the preferred...unlimited universal rendering, and colorspaces must be specified in a device-independent way. Standards-based metadata is mandated. (Arms & Fleischhauer

  18. Leonid Pavlovich Shil'nikov (obituary)

    Science.gov (United States)

    Anosov, Dmitry V.; Afraimovich, Valentin S.; Bunimovich, Leonid A.; Gonchenko, Sergei V.; Grines, Vyacheslav Z.; Ilyashenko, Yulij S.; Katok, Anatolii B.; Kashchenko, Sergey A.; Kozlov, Valerii V.; Lerman, Lev M.; Morozov, Albert D.; Neishtadt, Anatolii I.; Pesin, Yakov B.; Samoilenko, Anatoly M.; Sinai, Yakov G.; Treschev, Dmitrii V.; Turaev, Dmitry V.; Sharkovskii, Aleksandr N.; Shil'nikov, Andrei L.

    2012-06-01

    A remarkable mathematician, one of the most prominent specialists in the theory of dynamical systems and bifurcation theory, a laureate of the Lyapunov Prize of the Russian Academy of Sciences and of the Lavren'ev Prize of the National Academy of Sciences of Ukraine, a Humboldt Professor, Head of the Department of Differential Equations of the Research Institute of Applied Mathematics and Cybernetics of Nizhnii Novgorod University, Professor Leonid Pavlovich Shil'nikov passed away on 26 December 2011.

  19. Leaping eels electrify threats, supporting Humboldt’s account of a battle with horses

    Science.gov (United States)

    Catania, Kenneth C.

    2016-01-01

    In March 1800, Alexander von Humboldt observed the extraordinary spectacle of native fisherman collecting electric eels (Electrophorus electricus) by “fishing with horses” [von Humboldt A (1807) Ann Phys 25:34–43]. The strategy was to herd horses into a pool containing electric eels, provoking the eels to attack by pressing themselves against the horses while discharging. Once the eels were exhausted, they could be safely collected. This legendary tale of South American adventures helped propel Humboldt to fame and has been recounted and illustrated in many publications, but subsequent investigators have been skeptical, and no similar eel behavior has been reported in more than 200 years. Here I report a defensive eel behavior that supports Humboldt’s account. The behavior consists of an approach and leap out of the water during which the eel presses its chin against a threatening conductor while discharging high-voltage volleys. The effect is to short-circuit the electric organ through the threat, with increasing power diverted to the threat as the eel attains greater height during the leap. Measurement of voltages and current during the behavior, and assessment of the equivalent circuit, reveal the effectiveness of the behavior and the basis for its natural selection. PMID:27274074

  20. Anotaciones para un nuevo Emilio: transmisión sistémica del conocimiento

    Directory of Open Access Journals (Sweden)

    Edgar Morin

    2010-01-01

    Full Text Available La Universidad moderna nace de la reforma de Humboldt, quien introdujo las ciencias en plena expansión y contribuyó de manera decisiva a su desarrollo. Pero Humboldt era también consciente de que la Universidad debía proveer una cultura general, antes que una formación profesional especializada, para afrontar los problemas fundamentales y globales que se nos plantean en este siglo de manera cada vez más vital y urgente. Este principio cobra aún más vigencia ahora que vivimos una crisis cultural: la cultura de nuestro siglo necesita comunicación e intercambio entre el conocimiento científico y la cultura humanista. Sin embargo, en vez de irrigar como se debiera una competencia general, las disciplinas se encierran en sí mismas; la fragmentación del saber desintegra los problemas fundamentales y globales. Es entonces a esos problemas que se debería dedicar una nueva reforma de la Universidad, que no sería menos histórica que la de Humboldt. Ciertamente, cadauno de esos problemas requiere una competencia poli o trans-disciplinar (hay ejemplos, pero es justamente al afrontar esos problemas que se desarrolla esa competencia y se forman nuevos formadores.

  1. Alimentação e ecomorfologia de duas espécies de piranhas (Characiformes: Characidae do lago de Viana, estado do Maranhão, Brasil Feeding and ecomorphology of two species of piranhas (Characiformes: Characidae from the Viana Lake, Maranhão state, Brazil

    Directory of Open Access Journals (Sweden)

    Nivaldo Magalhães Piorski

    2005-01-01

    Full Text Available Serrasalmus aff. brandtii e Pygocentrus nattereri são duas espécies de piranhas comuns no Lago de Viana, um lago formado a partir das inundações do Rio Pindaré, tributário da margem esquerda do Rio Mearim. Uma amostra composta por 249 exemplares destas espécies foi estudada a fim de identificar a composição da dieta e as estratégias alimentares empregadas pelas duas. Os peixes foram coletados trimestralmente durante um ano, entre março de 1998 e março de 1999, usando redes de emalhar e tarrafas. A composição qualitativa da dieta foi analisada com uso do método de freqüência de ocorrência. As estratégias alimentares empregadas pelas espécies foram inferidas através do método gráfico de Costello (1990, modificado por Amundsen et al. (1996. Os resultados indicaram que peixes foi o item encontrado com maior freqüência nos estômagos de ambas as espécies, seguido de matéria vegetal, com maior participação na dieta de P. nattereri. Os recursos peixes e vegetais tenderam a apresentar relações inversas quando comparados com as diferentes classes de comprimento. A análise gráfica da dieta de P. nattereri e S. aff. brandtii sugere que a maioria dos indivíduos utiliza vários recursos simultaneamente. Uma análise multivariada de índices ecomorfológicos indicou que as espécies são segregadas com relação à habilidade natatória, posição ocupada na coluna d'água e tamanho relativo das presas.Serrasalmus aff. brandtii and Pygocentrus nattereri are two species of piranhas, both common in the Viana Lake, which is formed by the flooding waters of the Pindaré River, a tributary of the left bank of the Mearim River. A sample composed of 249 specimens of these species was studied in order to identify diet composition and feeding strategies employed by the two species. The piranhas were captured thrimonthly, during one year from March 1998 to March 1999 using gill and fishing nets of different mesh sizes. The qualitative

  2. Mercury distribution in organs of fish species and the associated risk in traditional subsistence villagers of the Pantanal wetland.

    Science.gov (United States)

    Ceccatto, Ana P S; Testoni, Magalei C; Ignácio, Aurea R A; Santos-Filho, Manoel; Malm, Olaf; Díez, Sergi

    2016-06-01

    This study evaluated the risk to human health from mercury (Hg) exposure through fish consumption in the Pantanal, Brazil. In order to address these risks, Hg concentrations and accumulation patterns were determined in target organs of predatory fish (Crenicichla lepidota and Pygocentrus nattereri). Levels of Hg were analysed during the two phases of the flood pulse (flood and drought) in fish from different local ecosystems, such as the Bento Gomes and Paraguay rivers. Although the former study area is directly affected by gold mining, a higher, but not significantly different, Hg concentration in fish was found compared with fish at the Paraguay River, which is regarded as pristine area. Moreover, no seasonal variability was found in either river. Although total mercury levels in fish did not exceed the maximum FAO/WHO threshold (0.5 μg g(-1)), according to dietary habits in riverine communities of the Pantanal (up to 6 oz of fish per day), there is reason for concern over the potential for deleterious health effects that could be caused by high Hg intake. In fact, the estimated daily intake in the present study ranged from 0.49 to 1.08 μg Hg kg(-1) day(-1), for adults (including women of childbearing age) and children, respectively. Because of high Hg intakes in riverine groups, which exceed the recommended reference dose value, these communities could be considered at risk. Therefore, it is necessary to consider regulatory measures and public education regarding fish consumption, particularly in vulnerable groups (i.e. children, pregnant women and women of childbearing age).

  3. Karyotype differentiation and cytotaxonomic considerations in species of Serrasalmidae (Characiformes from the Amazon basin

    Directory of Open Access Journals (Sweden)

    Celeste Mutuko Nakayama

    Full Text Available Six species of Serrasalmidae from the central Amazon, representatives of the genera Serrasalmus (S. elongatus, S. maculatus, S. cf. rhombeus, and S. rhombeus, Pygocentrus (P. nattereri, and Colossoma (C. macropomum, were analyzed regarding the distribution of the Ag-NORs, C-positive heterochromatin and 18S and 5S rRNA genes on the chromosomes. All specimens had 2n = 60 chromosomes, except S. cf. rhombeus, with 2n = 58, and C. macropomum with 2n = 54 chromosomes. The Ag-NORs were multiple and located on the short arms of subtelo-acrocentric chromosomes in all Serrasalmus species and in P. nattereri, but were found on metacentric chromosomes in C. macropomum. The 18S rDNA sites were usually coincident with Ag-NORs, although some species had a higher number and/or a distinct localization of these sites. C-positive heterochromatin was preferentially situated in centromeric regions, remarkably on metacentric pair number 7 in all Serrasalmus species and number 3 in P. nattereri, which beared a conspicuous proximal C-band on the long arms. The 5S rDNA sites were detected in a single chromosomal pair in all species. In Serrasalmus and P. nattereri, this pair was the number 7 and 3, respectively, thereby revealing its co-localization with the conspicuous heterochromatic band. However, in C. macropomum, only one homologue (probably belonging to pair number 12 exhibited 5S rDNA sites on the short arms, close to the centromere. The present data revealed reliable cytotaxonomic markers, enabling the evaluation of karyotype differentiation and interrelationships among Serrasalmidae, as well as the probable occurrence of a species complex in S. rhombeus.

  4. Cascadia GeoSciences: Community-Based Earth Science Research Focused on Geologic Hazard Assessment and Environmental Restoration.

    Science.gov (United States)

    Williams, T. B.; Patton, J. R.; Leroy, T. H.

    2007-12-01

    Cascadia GeoSciences (CG) is a new non-profit membership governed corporation whose main objectives are to conduct and promote interdisciplinary community based earth science research. The primary focus of CG is on geologic hazard assessment and environmental restoration in the Western U.S. The primary geographic region of interest is Humboldt Bay, NW California, within the southern Cascadia subduction zone (SCSZ). This region is the on-land portion of the accretionary prism to the SCSZ, a unique and exciting setting with numerous hazards in an active, dynamic geologic environment. Humboldt Bay is also a region rich in history. Timber harvesting has been occurring in California's coastal forestlands for approximately 150 years. Timber products transported with ships and railroads from Mendocino and Humboldt Counties helped rebuild San Francisco after the 1906 earthquake. Historic land-use of this type now commonly requires the services of geologists, engineers, and biologists to restore road networks as well as provide safe fish passage. While Humboldt Bay is a focus of some of our individual research goals, we welcome regional scientists to utilize CG to support its mission while achieving their goals. An important function of CG is to provide student opportunities in field research. One of the primary charitable contributions of the organization is a student grant competition. Funds for the student grant will come from member fees and contributions, as well as a percent of all grants awarded to CG. A panel will review and select the student research proposal annually. In addition to supporting student research financially, professional members of CG will donate their time as mentors to the student researchers, promoting a student mentor program. The Humboldt Bay region is well suited to support annual student research. Thorough research like this will help unravel some of the mysteries of regional earthquake-induced land-level changes, as well as possible fault

  5. De cómicos e histéricos. Una réplica a la sátira sobre eruditos de Daniel Kehlmann

    Directory of Open Access Journals (Sweden)

    Ottmar Ette

    2012-12-01

    Full Text Available Zusammenfassung Wie stark sich im Verlauf des zurückliegenden Vierteljahrhunderts der Bekanntheitsgrad Alexander von Humboldts in der deutschsprachigen Öffentlichkeit verändert hat, zeigen nicht nur Fernsehumfragen zu den berühmtesten Deutschen, in denen Alexander von Humboldt mittlerweile figuriert, oder Fernsehserien, die über aktuelle Expeditionen berichten und auf Humboldts Namen zurückgreifen. Am deutlichsten vielleicht belegt dies der enorme Erfolg von Daniel Kehlmanns Roman Die Vermessung der Welt, der ohne die zuvor skizzierte Entwicklung nicht denkbar gewesen wäre. Es ist vor diesem Hintergrund nicht nur reizvoll, sondern aufschlußreich, sich mit dem großen Erfolg dieses kleinen Romans zu beschäftigen. Worum geht es in Die Vermessung der Welt? Und wie läßt sich das „Phänomen Kehlmann“ aus etwas größerer Distanz erklären? Abstract In the last 25 years, Alexander von Humboldt‘s popularity has radically changed in the german-speaking public opinion. Proof of this are not only television surveys about the most famous germans - in which Alexander von Humboldt now regularly figures - or television series about contemporary expeditions, which constantly refer to Humboldt‘s name; perhaps what most clearly verifies this change is the great success of Daniel Kehlmann‘s novel Die Vermessung der Welt. Without the recent developments outlined above, this novel‘s degree of impact would have been unimaginable. To study the great success of this text against this backdrop is not only attractive, but also revealing. What is Die Vermessung der Welt really about? And how can we explain the „Kehlmann phenomenon“ from a greater distance? Resumen La popularidad de Alejandro de Humboldt ha cambiado profundamente dentro del último cuarto de siglo en la opinión pública de habla alemana. Prueba de esto son no sólo las encuestas televisivas sobre los alemanes más famosos, dentro de las cuales figura en estos momentos Alejandro

  6. Interconnectedness und digitale Texte

    Directory of Open Access Journals (Sweden)

    Detlev Doherr

    2013-04-01

    Full Text Available Zusammenfassung Die multimedialen Informationsdienste im Internet werden immer umfangreicher und umfassender, wobei auch die nur in gedruckter Form vorliegenden Dokumente von den Bibliotheken digitalisiert und ins Netz gestellt werden. Über Online-Dokumentenverwaltungen oder Suchmaschinen können diese Dokumente gefunden und dann in gängigen Formaten wie z.B. PDF bereitgestellt werden. Dieser Artikel beleuchtet die Funktionsweise der Humboldt Digital Library, die seit mehr als zehn Jahren Dokumente von Alexander von Humboldt in englischer Übersetzung im Web als HDL (Humboldt Digital Library kostenfrei zur Verfügung stellt. Anders als eine digitale Bibliothek werden dabei allerdings nicht nur digitalisierte Dokumente als Scan oder PDF bereitgestellt, sondern der Text als solcher und in vernetzter Form verfügbar gemacht. Das System gleicht damit eher einem Informationssystem als einer digitalen Bibliothek, was sich auch in den verfügbaren Funktionen zur Auffindung von Texten in unterschiedlichen Versionen und Übersetzungen, Vergleichen von Absätzen verschiedener Dokumente oder der Darstellung von Bilden in ihrem Kontext widerspiegelt. Die Entwicklung von dynamischen Hyperlinks auf der Basis der einzelnen Textabsätze der Humboldt‘schen Werke in Form von Media Assets ermöglicht eine Nutzung der Programmierschnittstelle von Google Maps zur geographischen wie auch textinhaltlichen Navigation. Über den Service einer digitalen Bibliothek hinausgehend, bietet die HDL den Prototypen eines mehrdimensionalen Informationssystems, das mit dynamischen Strukturen arbeitet und umfangreiche thematische Auswertungen und Vergleiche ermöglicht. Summary The multimedia information services on Internet are becoming more and more comprehensive, even the printed documents are digitized and republished as digital Web documents by the libraries. Those digital files can be found by search engines or management tools and provided as files in usual formats as

  7. A poesia e sua tradução, segundo os primeiros românticos alemães

    Directory of Open Access Journals (Sweden)

    Maria Aparecida Barbosa

    2006-06-01

    Full Text Available A versão do poema épico indiano Bhagavad-Gita do sânscrito para o latim, realizada por August von Schlegel, gerou controvérsia no início do século XIX, nos anos que se seguiram a 1823, quando foi publicada. O trabalho foi criticado pelo sanscritólogo francês S. A. Langlois e criteriosamente estudado por Wilhelm von Humboldt, que não lhe poupou elogios. O filósofo Georg W. F. Hegel baseou-se, por sua vez, no estudo de Humboldt, principalmente para questionar a afirmação de Humboldt e de Schlegel, de que o texto traduzido seria a única poesia antiga com autêntico conteúdo filosófico, e também para fazer algumas observações tradutológicas. Essa polêmica erudita foi enriquecida posteriormente com as opiniões de autores ingleses como H. Th. Colebrooke, também especialista em sânscrito, e Charles Wilkins, que fizera a primeira tradução da Bhagavad-Gita para a língua inglesa, em 1784. Esse debate inspiraria então as reflexões de August von Schlegel sobre tradução, que ele escreveu em 1826, ou seja, 3 anos após a sua primeira tradução da Bhagavad-Gita. Em 1846, um ano após sua morte, é publicada uma segunda versão que ele havia feito desse mesmo poema.

  8. 寂寞与自由:高等教育应当坚守的两项原则——重温洪堡大学思想的启示%LONELINESS AND FREEDOM:THE TWO PRINCIPLES ON WHICH THE HIGHER EDUCATION SHOULD LNSIST——THE ENLIGHTENMENT OF MAKING A REVIEW OF W.HUMBOLDT'S UNIVERSITY IDEAS

    Institute of Scientific and Technical Information of China (English)

    陈啸; 万晓花

    2011-01-01

    柏林大学的改革是以洪堡为代表的德国知识分子展开的。洪堡改革中提出的大学的任务、大学与政府的关系,特别是大学应坚守的寂寞与自由的两项原则,不仅使柏林大学焕发了新的活力,而且深刻影响了世界大学的发展,对后世的高等教育影响极大。重温洪堡的大学思想,深刻探析洪堡大学思想产生的背景、内涵实质等,对我国高等教育发展有一定启示作用。%The reform of Berlin University is unfolded by the German intellectuals represented by Wilhelm Humboldt.The reform of W.Humboldt put forward the mission of University,the relationship between University and Government and especially the two principles of loneliness and freedom that the university should insist on,not only offer new vigor to Berlin University,but also has a profound impact on the development of the worldwide university whose implications are enormous to later ages' higher education.Making a review of W.Humboldt's university ideas and a deep study on the background,connotation and substance of the university ideas of W.Humboldt has certain enlightenments to the development of our higher education.

  9. Darwin: German mystic or French rationalist?

    Science.gov (United States)

    Ghiselin, Michael T

    2015-01-01

    The notion that Charles Darwin embraced the German Romantic tradition seems plausible, given the early influence of Alexander von Humboldt. But this view fails to do justice to other scientific traditions. Darwin was a protégé of the Englishman John Stevens Henslow and was a follower of the Scott Charles Lyell. He had important debts to French scientists, notably Henri Milne-Edwards, Etienne and Isidore Geoffroy Saint-Hilaire, and Alphonse de Candolle. Many Germans were quite supportive of Darwin, but not all of these were encumbered by idealistic metaphysical baggage. Both Darwin and Anton Dohrn treated science as very much a cosmopolitan enterprise.

  10. Status and understanding of groundwater quality in the Northern Coast Ranges study unit, 2009: California GAMA Priority Basin Project

    Science.gov (United States)

    Mathany, Timothy M.; Belitz, Kenneth

    2015-01-01

    Groundwater quality in the 633-square-mile (1,639-square-kilometer) Northern Coast Ranges (NOCO) study unit was investigated as part of the Priority Basin Project (PBP) of the Groundwater Ambient Monitoring and Assessment (GAMA) Program and the U.S. Geological Survey (USGS) National Water-Quality Assessment Program. The study unit is composed of two study areas (Interior Basins and Coastal Basins) and is located in northern California in Napa, Sonoma, Lake, Colusa, Mendocino, Glenn, Humboldt, and Del Norte Counties. The GAMA-PBP is being conducted by the California State Water Resources Control Board in collaboration with the USGS and the Lawrence Livermore National Laboratory.

  11. ROMS and SUNTANS Continued Development and Support of AESOP And NLIWI

    Science.gov (United States)

    2007-09-30

    International Conference on the Humboldt Current System, Lima/Peru, Dec. 2006. Deutsch, C. N. Gruber, H. Frenzel , T. Nagai, G.-K. Plattner, J.C. McWilliams, A...Stolzenbach, 2007: Circulation in the Southern California Bight. Eastern Pacific Ocean Conference, Leavenworth, WA, Sept. 2007. Frenzel , H., C. Dong, N. Gruber...Sept. 2006. Gruber, N., H. Frenzel , P. Marchesiello, J.C. McWilliams, T. Nagai, and G.-K. Plattner, 2007: On the Role of Eddies for Coastal Productivity

  12. Un vasto campo: «Les langues du nouveau continent»

    Directory of Open Access Journals (Sweden)

    Trabant Jürgen

    1998-06-01

    Full Text Available

    Con esta frase de sencillez clásica comienza el bello ensayo en lengua francesa, de Wilhelm von Humboldt, «Essai sur les langues du nouveau continent», texto escrito en 1812 en Viena, que iba a constituirse en epílogo de su obra Voyage aux régions équinoxiales du nouveau continent, pero que quedó inconcluso como muchas otras obras suyas. Vale recordar que el «Gran Libro» sobre las lenguas americanas, tantas veces comenzado, nunca se terminó.

  13. Universitetsforskere, ledelse og styringslogik

    DEFF Research Database (Denmark)

    Nielsen, Thomas; Ingemann, Jan Holm

    organisation baseret på ministerudpeget bestyrelsesflertal og kontraktstyring. Som afsæt anvendes den rekonstruktion af universiteternes mission og værdier, der blev foretaget af Humboldt og som er dybt institutionaliseret i universiteternes kultur. Herved forsøges universiteternes og universitetsforskernes...... kontrast til universiteternes mission og værdier. Det konkluderes, at forandringsmodstanden har været velbegrundet, logisk og rationel, fordi forandringen implicerer, at indholdet i begrebet 'universitetsforsker' og 'universitet' i kraft af styringslogikken tendentielt forsvinder....

  14. The distribution and impacts of harmful algal bloom species in eastern boundary upwelling systems

    Science.gov (United States)

    Trainer, V. L.; Pitcher, G. C.; Reguera, B.; Smayda, T. J.

    2010-04-01

    Comparison of harmful algal bloom (HAB) species in eastern boundary upwelling systems, specifically species composition, bloom densities, toxin concentrations and impacts are likely to contribute to understanding these phenomena. We identify and describe HABs in the California, Canary, Benguela and Humboldt Current systems, including those that can cause the poisoning syndromes in humans called paralytic shellfish poisoning (PSP), diarrhetic shellfish poisoning (DSP), and amnesic shellfish poisoning (ASP), as well as yessotoxins, ichthyotoxins, and high-biomass blooms resulting in hypoxia and anoxia. Such comparisons will allow identification of parameters, some unique to upwelling systems and others not, that contribute to the development of these harmful blooms.

  15. Bildung - Then and Now in Danish High School and University Teaching and How to Integrate Bildung into Modern University Teaching

    DEFF Research Database (Denmark)

    Olesen, Mogens Nørgaard

    2010-01-01

    I the article the classical concept of Bildung as introduced by Humboldt and Kant is discussed and it is shown what impact Bildung has had in Danish high school and university teaching since 1800. Furthermore it is shown how Bildung in a new version, strictly connected to philosophy of science, w......, with great advantage can be integrated into modern university teaching, and some empirical results during the last three years at the Department of Economics giving the teory experimental evidence are mentioned....

  16. [Science and nation: romanticism and natural history in the works of E. J. da Silva Maia].

    Science.gov (United States)

    Kury, L

    1998-01-01

    The works of physician and naturalist Emílio Joaquim da Silva Maia (1808-59) can be viewed as a scientific project that discovers Brazil and its inhabitants. Maia's nationalism and his romantic view of nature formed the underpinnings of his scientific theories, especially his studies on zoological geography. He subordinated the issue of the biological specificity of different regions of the world to his era's debates on the construction of Brazil as an independent nation. In his interpretations of European natural history, Maia endeavored to understand Brazilian nature as a specific achievement of the Cosmos, in keeping with Alexander von Humboldt's approach.

  17. M-X Environmental Technical Report. Environmental Characteristics of Alternative Designated Deployment Areas, Aquatic Habitats and Biota.

    Science.gov (United States)

    1980-12-22

    Cos. Bronco Bruneau Galena Columbia Ash Canyon Humboldt (N. Clear & S. Fork) Owyhee (E. Fork) Jarbridge Nye, Esmeralda, Chiatovich Mary’s and Mineral...Cold McDermitt Willow Jackson Kings R. Eureka, White Pine, Roberts Mill and Lincoln Cos. Fish Creek Trout Cave Willow Silver Kingston Baker Steiner...Wah Wah L L 180 Cave L 54 (N) Cresent L L 181 Dry Lake L L 55 Carico Lake L L 182 Delamar L L 56 Upper Reese River 1 I 183 Lake L L 57 Antelope L L

  18. Analytical atomic spectrometry with flames and plasmas

    CERN Document Server

    Broekaert, Jose A C

    2006-01-01

    Born in 1948, José Broekaert studied chemistry at the University of Gent, Belgium, graduating in 1970. After receiving his PhD from the University of Gent in 1976 and a stay in Germany as Alexander-von-Humboldt postdoctoral fellow the following year, he was a scientist at the ISAS, Dortmund from 1978 to 1991 and obtained the degree of ""Geaggregeerde voor het hoger onderwijs"" from the University of Antwerp, Belgium in 1985. He became associate professor at the University of Dortmund in 1991, full professor at the University of Leipzig in 1998 and, in 2002, joined the University of Hamburg. I

  19. MPS/CAS Partner Group on Nanotechnology in Catalysis

    Institute of Scientific and Technical Information of China (English)

    Bao Xinhe; Robert Schl(o)gl

    2004-01-01

    @@ The first contact between Bao Xinhe and the Fritz Haber Institute (FHI) of the Max Planck Society goes back to 1989, when he was a Humboldt Scholarship holder in Germany. He worked at the FHI with Gerard Ertl on the surface and catalytic properties of Ag-cluster until 1995, when he returned to China and joined the Dalian Institute of Chemical Physics (DICP) under the Chinese Academy of Sciences. The cooperation with the FHI continued in 2000, when a Partner Group was established under the leadership of Robert Schlogl and Bao Xinhe.

  20. German-Japanese relationships in biochemistry: a personal perspective

    Science.gov (United States)

    Sies, Helmut

    2016-01-01

    ABSTRACT The first Institute of Biochemistry in Japan was founded by Leonor Michaelis from Berlin at Nagoya in 1922, and there have been numerous interrelations between Japanese and German biochemists since. Some such relationships are presented here from a personal point of view as one illustrative example, which could be extended amply by the experience of many other scientists from the two countries. Fruitful exchanges are facilitated by organisations such as the Alexander von Humboldt Foundation (AvH) and the Deutscher Akademischer Austauschienst (DAAD) or the Japanese Society for the Promotion of Science (JSPS) and by the many bilateral agreements between universities and research institutions. PMID:28008189

  1. Le graphe et la graphie de la Terre. Un exercice formel pour commémorer le bicentennaire du Voyage aux Amériques équinoxales

    Directory of Open Access Journals (Sweden)

    Hervé Gazel

    1999-06-01

    Full Text Available Cette communication interroge la migration de connaissances géographiques vers un support numérique. Une telle migration peut se concevoir comme une hypertextualisation. Elle passe par l’examen de la relation entre le graphe et l’écriture géographique. L’exemple de la classification des climats qui renvoie aux travaux de Humboldt permet de montrer comment la mutation de connaissances géographiques est liée à l’analyse de la relation entre graphe et graphie de la terre.

  2. Estudio integrado del ecosistema en el estrecho de Bransfield y alrededores de la Isla Elefante, verano austral 2013: presentación

    OpenAIRE

    Salazar, Carlos Martín; Espino, Marco Antonio

    2016-01-01

    En el ANTAR XXI se ejecutó un programa científico que fue realizado a bordo del BIC Humboldt del 22 de enero al 28 de febrero durante el verano austral 2013. Este programa tuvo por finalidad describir el ecosistema antártico como una función de las interrelaciones entre el krill antártico (Euphasia superba), sus depredadores y las condiciones oceanográficas y biológicas del medio marino. Pero además, cabe destacar, la implementación en el programa de la primera investigación peruana de ...

  3. RESEÑA HISTÓRICA, DESARROLLO Y ACTUALIDAD DEL HERBARIO DE LA PONTIFICIA UNIVERSIDAD JAVERIANA (HPUJ)

    OpenAIRE

    M. Alvear-Pacheco; M. León-Gómez; M. Diazgranados-Cadelo; H. Bernal-Malagón

    2007-01-01

    Se presenta una reseña histórica sobre el origen, consolidación, actualidad y perspectivas del Herbario de la Pontificia Universidad Javeriana (HPUJ). Entre los sucesos más importantes se destaca la inscripción en el Index Herbariorum bajo el acrónimo HPUJ en 1986 y el registro oficial ante el Instituto Alexander von Humboldt en 2001 (Registro No. 11), según la Resolución 1115 de 2000 del Ministerio del Medio Ambiente. El objetivo del HPUJ es ser una colección de referencia científica reconoc...

  4. “Alexander von Humboldt” als Name für Forschungsschiffe vor dem Hintergrund seiner meereskundlichen Arbeiten

    Directory of Open Access Journals (Sweden)

    Gerhard Kortum

    2002-10-01

    Full Text Available Article in German, Abstract in English. A. v. Humboldt as a Name of Research VesselsA number of special purpose vessels in the world carried or carry the name of Alexander von Humboldt, who had substantial interests in oceanography. However, most of his marine texts are scattered over his major works, and he never finished his manuscript on ocean circulation. But there is a general agreement that A. v. Humboldt was one of the pioneers of marine sciences. He made his own observations on the sailing vessels he used on his expedition to the Neotropics, mainly concerning sea surface temperatures. In 2002 there was a discussion in Germany about the name of a new research vessel which is going to be commissioned in the summer of 2004. It was suggested by the science community to take the name of „Alexander von Humboldt“ again, as the new vessel is replacing a medium-sized ship with this name operated now by the Baltic Sea Research Institute in Rostock-Warnemünde. This vessel has been in service from 1970 to 1990 for the Academy of Sciences of the former German Democratic Republic. The first German research vessel „Alexander von Humboldt“ was a fishing trawler (1939. Furthermore, Peru and Mexico operate research vessels bearing Humboldt’s name. The best known „Alexander von Humboldt“ is an ocean going sailing ship of the International Sail Training Association, based in Bremen. She is engaged in educational programmes and went the South America in 1999 following Humboldt’s route. Thus, Humboldt’s marine legacy is preserved. The proposal to use the undisputed name of this great all-round scientist for the new German vessel under construction now was not successful. A high-ranking jury decided to prefer “Maria Sibylla Merian” (1647-1717, which was suggested by a young student in a nation-wide competition to find a name. As Humboldt 100 years later, she went to South America to study plants and other fields of natural history.

  5. From California to Beyond--An Interview with Brook Thomas,professor ofAmerican Literature at the University of California,Irvine

    Institute of Scientific and Technical Information of China (English)

    Brook Thomas; Xin Qu

    2011-01-01

    In this interview Xin Qu chats with Brook Thomas,professor of American Literature at the University of California,Irvine.Book Thomas is a fellow of the Von Humboldt Foundation in Germany,the Woodrow Wilson Center,the American Council of Learned Societies(ACLS),and the National Endowment for the Humanities(NEH).Early in 1993,Professor Thomas's paper: The New Historicism and Other Old-fashioned Topics was translated and included in The New Historicism and Literature Criticism,published by Peking University Press.Xin Qu ready to share the interview with the reader.

  6. Material properties of zooplankton and nekton from the California current

    Science.gov (United States)

    Becker, Kaylyn

    This study measured the material properties of zooplankton, Pacific hake (Merluccius productus), Humboldt squid (Dosidicus gigas), and two species of myctophids (Symbolophorus californiensis and Diaphus theta) collected from the California Current ecosystem. The density contrast (g) was measured for euphausiids, decapods (Sergestes similis), amphipods (Primno macropa, Phronima sp., and Hyperiid spp.), siphonophore bracts, chaetognaths, larval fish, crab megalopae, larval squid, and medusae. Morphometric data (length, width, and height) were collected for these taxa. Density contrasts varied within and between zooplankton taxa. The mean and standard deviation for euphausiid density contrast were 1.059 +/- 0.009. Relationships between zooplankton density contrast and morphometric measurements, geographic location, and environmental conditions were investigated. Site had a significant effect on euphausiid density contrast. Density contrasts of euphausiids collected in the same geographic area approximately 4-10 days apart were significantly higher (p < 0.001). Sound speed contrast (h) was measured for euphausiids and pelagic decapods (S. similis) and it varied between taxa. The mean and standard deviation for euphausiid sound speed were 1.019 +/- 0.009. Euphausiid mass was calculated from density measurements and volume, and a relationship between euphausiid mass and length was produced. We determined that euphausiid from volumes could be accurately estimated two dimensional measurements of animal body shape, and that biomass (or biovolume) could be accurately calculated from digital photographs of animals. Density contrast (g) was measured for zooplankton, pieces of hake flesh, myctophid flesh, and of the following Humboldt squid body parts: mantle, arms, tentacle, braincase, eyes, pen, and beak. The density contrasts varied within and between fish taxa, as well as among squid body parts. Effects of animal length and environmental conditions on nekton density

  7. Famed Bulgarian physicists. I. St. Petroff's Goettingen research of the photostimulated interconversions of color centers in alkali halides: the discovery of the photostimulated aggregation

    CERN Document Server

    Georgiev, Mladen

    2008-01-01

    This essay tells briefly of the life and work of one of the most successful scientists originating from a Balkan settlement whose name and popularity have greatly exceeded its realm. The word is of a discovery during WWII of the photostimulated aggregation of the F centers (else alkali atoms) dissolved from the vapor into an alkali halide crystal. Using optical absorption techniques while a grantee of Humboldt's Foundation in Goettingen, Germany between 1943-1944, he found new absorption bands pertaining to small-size F center aggregates and followed their interconversions. A primary photochemical solid state reaction was evidenced for the first time leading to nanoscale products.

  8. The Geometry of Selected U.S. Tidal Inlets.

    Science.gov (United States)

    1980-05-01

    Bodega Bay Inlet. Calif. 1931 NI C6GS S162 56 Humboldt Bay Inlet, Calif. 1859 NI CIGS 5710 57 Coos Bay Inlet. Oreg. 1885 NI USAE CB-I-18 58 Umpqua...Group 2 Group 3 Group 4 Group 5 Group 6 Outliers koriches Fripps Carolina Beach Lockwoods Folly Townsend Beaufort Hillsboro Stump St. Augustine Bodega ...Drakes Inlet, Calif. 1860 141 AlAN - -1 4-- * LtA94 LAND 0( -RAY 339 ft SECTON WDTHCHANNEL LENGTH 542. 626. Boo EGA BA 1931 C GS5162 BODEGA BAY 1931

  9. La diversidad en aves como factor determinante de la interacción entre ecosistemas del departamento del Huila

    OpenAIRE

    Alfredo Ramos Moreno; Rigoberto Mayor Polanía; Nelson Humberto Ortiz P; Luis Ferney Tovar Pérez

    2012-01-01

    En este estudio se realizó una descripción y análisis, en primera aproximación, de la oferta en diversidad de aves en el predio La Primavera, vereda Estambul, municipio de Teruel, departamento del Huila. A partir de la información generada, se procedió a comparar los resultados obtenidos con los reportes de aves inventariadas en el estudio GEMA (2006) desarrollado por el Instituto de Investigación de Recursos Biológicos Alexander Von Humboldt, en el Corredor Biológico entre los PNN Puracé y C...

  10. Éric Courthès, Memorias de un muerto, el viaje sin retorno de Amado Bonpland

    OpenAIRE

    Erika Bordenave

    2011-01-01

    En su primera novela, Éric Courthès nos da a escuchar la voz de un muerto famoso, Amado Bonpland, nacido en La Rochela en 1773 y muerto en Corrientes en 1858, al cabo de más de cuarenta años de viajes, exploraciones, amores, amistades e implicaciones en la Guerra Grande entre Rosas y Corrientes y otros conflictos regionales.Amado Bonpland se dio a conocer en 1804, al volver de la famosa expedición del Orinoco al Amazonas con Alejandro de Humboldt. Después su buena estrella lo llevó hasta el r...

  11. On the Difficulty to Design Arabic E-learning System in Statistics

    OpenAIRE

    Ahmad, Taleb; Härdle, Wolfgang Karl; Mungo, Julius

    2006-01-01

    In this paper, we present a case study, which describe the development of the Statistic e-learning-course in Arabic language –``Arabic MM*STAT´´. The basic frame forthis E-book, the system MM*STAT was developed at the School for Business and Economics of Humboldt-Universität zu Berlin. Arabic MM*STAT uses a HTML - based filing card structure. We discuss the difficulties of the implementation of such a system in to the standard WWW formats and present the solutions needed for Arab educational ...

  12. First record of Porocephalus cf. clavatus (Pentastomida: Porocephalida as a parasite on Bothrops asper (Squamata: Viperidae in Costa Rica

    Directory of Open Access Journals (Sweden)

    G. Alvarado

    Full Text Available Abstract Pentastomids are parasites that infect respiratory cavities of vertebrates, they are pretty common but poorly known in wildlife veterinary. A Bothrops asper snake (Garman, 1884 was captured in the Caribbean region of Costa Rica and had its lung infested with pentastomids, identified as ca Porocephalus clavatus (Wyman, 1845. This represents the first record of Porocephalus (Humboldt, 1812 on B. asper as well as P. cf. clavatus in Costa Rica. Further studies are needed to clarify their taxonomic position, images and scanning electron microscopy photographs (SEM of the specimens are given.

  13. Physiological response of tomato seeds solanum lycopersicum l var unapal–maravilla and pepper seed capsicum annuum l var unapal–serrano to criopreservation

    OpenAIRE

    Martinez, Mauricio; Cardozo Conde, Carlos Iván; Sánchez Orozco, Manuel Salvador

    2011-01-01

    En el laboratorio de Fisiología de la Universidad Nacional de Colombia y en los tanques para la crioconservación del Instituto Humboldt del Centro Internacional de Agricultura Tropical (CIAT), ubicados en el municipio de Palmira, en diseños completamente al azar en arreglos factoriales con cuatro repeticiones para la prueba de germinación y dos para la prueba de emergencia, se evaluaron los efectos en la calidad fisiológica de las semillas de tomate Solanum lycopersicum L. var Unapal–Maravill...

  14. Respuesta fisiológica de semillas de tomate Solanum lycopersicum L. var. Unapal - Maravilla y pimentón Capsicum annuum L.) var Unapal-Serrano en crioconservación

    OpenAIRE

    Cardozo Conde Carlos Iván; Sánchez Orozco Manuel Salvador; Martinez Mauricio

    2010-01-01

    En el laboratorio de Fisiología de la Universidad Nacional de Colombia y en los tanques para la crioconservación del Instituto Humboldt del Centro Internacional de Agricultura Tropical (CIAT), ubicados en el municipio de Palmira, en diseños completamente al azar en arreglos factoriales con cuatro repeticiones para la prueba de germinación y dos para la prueba de emergencia, se evaluaron los efectos en la calidad fisiológica de las semillas de tomate Solanum lycopersicum <...

  15. Medien und Informationstechnologien in der Lehrerausbildung – Plädoyer für ein Mindestcurriculum

    Directory of Open Access Journals (Sweden)

    Olaf Kos

    2001-11-01

    Full Text Available In diesem Beitrag werden konzeptionelle Überlegungen für die Integration eines Lehrkomplexes «Neue Medien und Informationstechnologien» im Rahmen des erziehungswissenschaftlichen Grundstudiums in der ersten Phase der Lehramtsausbildung vorgestellt. Dabei stützen sich die Autoren vor allem auf die Erfahrungen und Ergebnisse des zweijährigen Modellversuchs «Informatische Bildung für Lehrerstudenten», der im Rahmen des erziehungswissenschaftlichen Teils der Lehramtsausbildung an der Humboldt Universität zu Berlin sehr erfolgreich und mit hoher Akzeptanz auf Seiten der Studenten durchgeführt wurde.

  16. 威廉·冯·洪堡

    Institute of Scientific and Technical Information of China (English)

    2003-01-01

    威廉·冯·洪堡(1767.6.22-1835.4.8)(wilhelm von Humboldt)是当时的普鲁士教育大臣、德国著名学者、教育改革家,于1810年10月创办柏林洪堡大学,这所大学被称为现代大学的母亲。洪堡提出大学里的学术研究。教师和学生学习都应当是

  17. O DESENVOLVIMENTO DO CONCEITO DE PAISAGEM E A SUA INSERÇÃO NA GEOGRAFIA FÍSICA

    Directory of Open Access Journals (Sweden)

    Antonio Carlos Vitte

    2007-01-01

    Full Text Available The landscape concept is polissemic and results from a philosophical and social representation. With Goethe's reflections, Humboldt, Ritte and Richthofen in the physical geography, the landscape passed the comprehended being as the result of a relation between Land epidermis and the cultures along the history. Its empiricization and instrumentalization occurred by means of georelief notions developed by Passarge. Where the landscape physiology concept, it allowed the landscape geoecology development with Carl Troll and the modernization in the studies of climatic geomorphology by means of the reflections of Aziz Ab'Saber.

  18. Go native. Debaty o książce Timothy Snydera

    Directory of Open Access Journals (Sweden)

    Joanna Tokarska-Bakir

    2012-12-01

    Full Text Available Go native. Debates on a book by Timothy Snyder  This article debates the content of the latest issue of “Contemporary European History” from 2012 (vol. 21, no. 2 dedicated to Timothy Snyder’s book Bloodlands. The debate includes contributions by: Mark Mazower (Columbia University, Dan Diner (Hebrew University/Simon-Dubnow-Institute Leipzig, Thomas Kühne (Clark University and Jörg Baberowski (Humboldt University. Timothy Snyder reacts to their comments in an extensive essay.

  19. Go native. Debaty o książce Timothy Snydera

    OpenAIRE

    Joanna Tokarska-Bakir

    2012-01-01

    Go native. Debates on a book by Timothy Snyder  This article debates the content of the latest issue of “Contemporary European History” from 2012 (vol. 21, no. 2) dedicated to Timothy Snyder’s book Bloodlands. The debate includes contributions by: Mark Mazower (Columbia University), Dan Diner (Hebrew University/Simon-Dubnow-Institute Leipzig), Thomas Kühne (Clark University) and Jörg Baberowski (Humboldt University). Timothy Snyder reacts to their comments in an extensive essay.

  20. CONSIDERAÇÕES SOBRE O PARADIGMA INTERPRETATIVO DE FORMAÇÃO SOCIAL

    OpenAIRE

    Ferreira, Lucas dos Santos

    2012-01-01

    Assim como o aprimoramento metodológico das ciências naturais (Newton, Humboldt, Darwin, etc.) permitiu-nos compreender o conjunto de leis que regem os processos físicos e orgânicos, o pensamento marxista, herdeiro das mais avançadas idéias até então elaboradas, viabilizou o estudo das distintas formas de sociedade ao desvendar seus mecanismos de funcionamento explicitando o caráter universal de determinadas leis econômicas e trajetórias de desenvolvimento. A utilização do potencial explicati...