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  1. Virgin Valley opal district, Humboldt County, Nevada

    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.

  2. Decommissioning of the Humboldt Bay Power Plant, Unit No. 3, Docket No. 50-133, Humboldt County, California

    1987-04-01

    Environmental impacts associated with the SAFSTOR option for decommissioning the Humboldt Bay Power Plant, Unit 3, located four miles southwest of the city of Eureka in Humboldt County, California, are assessed. Humboldt Bay Unit 3, a 65-MWe boiling water reactor, was operated commercially from August 1963 until July 1976, at which time it was shut down for seismic modifications. The facility would be stored safely for approximately 30 years. Estimated annual purchases of materials and supplies resulting from SAFSTOR activities are expected to be $20,000 (1984 dollars), and these purchases are expected to be made in Humboldt County. A fuel-handling accident would result in atmospheric radionuclide releases that are well below EPA Protective Action Guide (PAG) levels. Damage to all the stored-fuel assemblies resulting from a nonmechanistic heavy-load drop would result in atmospheric radionuclide releases that are also well below the PAG levels. There is a negligibly small likelihood that seismic loads or other mechanical loads would generate criticality among the spent fuel assemblies stored in the pool. The upper limits of potential lung, liver, and bone doses resulting from an instantaneous expulsion to the atmosphere of the entire water/radionuclide content of the spent-fuel pool are very small fractions of the PAG levels. A rupture of the spent-fuel pool or the liquid radwaste tanks would result in a total body dose to an average individual via the seafood chain that would be less than the dose from natural background levels. Doses from recreational activities in Humboldt Bay would be negligible

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

    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....

  4. Decommissioning of the Humboldt Bay Power Plant, Unit No. 3, Docket No. 50-133, Humboldt County, California

    1986-04-01

    A draft environmental impact statement (EPA No. 860164D) on plans to decommission unit 3 of the Humboldt Bay reactor in California. The reactor was shutdown in 1976 for seismic modifications after 13 years of operation, but decommissioning proved more economical. The plan calls for retaining spent fuel on the site until a federal repository is available. The utility has established a radiation protection program to limit exposures. Safe storage of the facility is possible for about 30 years, but a fuel-handling or other accident could lead to the release of radionuclides into the atmosphere. A rupture of the spent fuel pool or the liquid radwaste tanks could contaminate the seafood chain, but doses received during recreational use of the bay would be negligible. The Federal Waste Pollution Control Act of 1972 and Nuclear Waste Policy Act of 1982 require the impact statement

  5. Structural nature of the Humboldt fault zone in northeastern Nemaha County, Kansas

    Stander, T.W.

    1989-01-01

    The Kansas Geological Survey has conducted a major re-evaluation of the geology and seismicity of Kansas in connection with design criteria for dams, nuclear-power plants, and other earthquake-sensitive structures. Northeast Kansas was chosen as a study area because of the concentration of seismic activity and the stratigraphic evidence for the maximum amount of vertical displacement of the humboldt fault. This study determines the nature of the deformation on the Humboldt fault and resolves its lateral position and total vertical throw in the near-surface

  6. Development and implications of a sediment budget for the upper Elk River watershed, Humboldt County

    Lee H. MacDonald; Michael W. Miles; Shane Beach; Nicolas M. Harrison; Matthew R. House; Patrick Belmont; Ken L. Ferrier

    2017-01-01

    A number of watersheds on the North Coast of California have been designated as sediment impaired under the Clean Water Act, including the 112 km2 upper Elk River watershed that flows into Humboldt Bay just south of Eureka. The objectives of this paper are to: 1) briefly explain the geomorphic context and anthropogenic uses of the Elk River...

  7. Ground-water flow and simulated effects of development in Paradise Valley, a basin tributary to the Humboldt River in Humboldt County, Nevada

    Prudic, David E.; Herman, M.E.

    1996-01-01

    A computer model was used to characterize ground-water flow in Paradise Valley, Nevada, and to evaluate probable long-term effects of five hypothetical development scenarios. One finding of the study is that concentrating pumping at the south end of Paradise Valley may increase underflow from the adjacent Humboldt River valley, and might affect flow in the river.

  8. THE MISSING EARTHQUAKES OF HUMBOLDT COUNTY: RECONCILING RECURRENCE INTERVAL ESTIMATES, SOUTHERN CASCADIA SUBDUCTION ZONE

    Patton, J. R.; Leroy, T. H.

    2009-12-01

    transects are located in each of eight archival domains in order to evaluate archival bias and potential deformation sources for the southern Cascadia subduction zone. These domains are located in the Eel River, Humboldt Bay, Humboldt Lagoons, and Crescent City regions. In any given domain, evidence of earthquakes can be regional, local, or both. Core transects are designed to capture archival bias due to 1) interseismic deformation in the upper plate or the megathrust, 2) rupture on upper plate thrust faults, 3) rupture on the megathrust, or 4) rupture on both. Modern biogeochemical transects are used to calibrate paleontologic estimates. Based on our assessment, we determine which sites need better age control, which sites need supplemental coring, and key new research areas that need to be investigated.

  9. 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.

    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%.

  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

    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

  11. 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

    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.

  12. 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.

    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,...

  13. Traversing Humboldt's transareal landscapes

    Diedrich, Lisa; Braae, Ellen Marie; Lee, Gini

    2017-01-01

    Die Besonderheit der wissenschaftlichen Arbeit und des Schreibens Alexander von Humboldts wird häufig anhand einer den Raum erschließenden Bewegung beschrieben. Konzepte zur Repräsentation räumlicher Verhältnisse, wie Landschaftsdarstellungen und Karten, sind für Humboldts Vorgehen daher epistemo...... 2016 erschienenen „Horizonte der Humboldt-Forschung: Natur, Kultur, Schreiben“ (POINTE Band 16) gelesen werden, der die Ergebnisse der ersten beiden Symposien dokumentiert. Die damals aufgeworfenen Fragen und behandelten Thematiken werden hier fortgeführt und weiterentwickelt....

  14. Humboldt Bay Orthoimages

    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...

  15. Alejandro Von Humboldt

    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.

  16. Acceleration of Humboldt glacier, north Greenland

    Jeong, S.; Howat, I.; Noh, M. J.; King, M. D.

    2017-12-01

    Here we report on recent abrupt acceleration on the flow speed of Humboldt Glacier (HG) in northern Greenland. The mean annual discharge of this glacier in 2000 was estimated as 8.4Gt/a, placing it among the largest outlet glacier draining the northern coast (Enderlin et al., 2014). Using a combination of remote sensing datasets, we find that following a slight slowing before 2010, HG suddenly sped up by a factor of three between 2012 and 2013, maintaining that increased speed through 2016. Speedup was accompanied by up to 10 m of thinning near the terminus and followed slower, longer-term thinning and retreat. Here we assess possible causes for the speedup, potential for continued acceleration and implication to ice sheet mass balance. ReferenceEnderlin, E. M., I. M. Howat, S. Jeong, M.-J. Noh, J. H. van Angelen, and M. R. van den Broeke (2014), An improved mass budget for the Greenland ice sheet, Geophys. Res. Lett., 41, 866-872, doi:10.1002/2013GL059010.

  17. Basic repository source term and data sheet report: Deaf Smith County

    1987-01-01

    This report is one of a series describing studies undertaken in support of the US Department of Energy Civilian Radioactive Waste Management (CRWM) Program. This study contains the derivation of values for environmental source terms and resources consumed for a CRWM repository. Estimates include heavy construction equipment; support equipment; shaft-sinking equipment; transportation equipment; and consumption of fuel, water, electricity, and natural gas. Data are presented for construction and operation at an assumed site in Deaf Smith County, Texas. 2 refs., 6 tabs

  18. Humboldt Bay, California Benthic Habitats 2009 Geodatabase

    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...

  19. Humboldt, California 1 arc-second DEM

    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...

  20. Humboldt Bay Benthic Habitats 2009 Aquatic Setting

    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...

  1. Humboldt Bay, California Benthic Habitats 2009 Substrate

    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...

  2. Humboldt Bay, California Benthic Habitats 2009 Geoform

    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...

  3. Draft Environmental Statement for decommissioning Humboldt Bay Power Plant, Unit No. 3 (Docket No. 50-133)

    1986-04-01

    This Draft Environmental Statement (DES) contains th assessment of the environmental impact associated with decommissioning the Humboldt Bay Power Plant Unit 3 located 4 miles southwest of the city of Eureka, Humboldt County, California. This DES is prepared pursuant to the National Environmental Policy Act of 1969 (NEPA) and Title 10 of the Code of Federal Regulations, Part 51, as amended, of the Nuclear Regulatory Commission regulations. The proposed decommissioning would involve safe storage of the facility for about 30 years, after which the residual radioactivity would be removed so that the facility would be at levels of radioactivity acceptable for release of the facility to unrestricted access. 26 refs

  4. Humboldt Open Ocean Disposal Site (HOODS) Survey Work 2014

    U.S. Environmental Protection Agency — The Humboldt Open Ocean Disposal Site (HOODS) is a dredged material disposal site located 3 nautical miles (nm) offshore of Humboldt Bay in Northern California....

  5. A Metabiography of Alexander von Humboldt

    Nicolaas A. Rupke

    2006-04-01

    Full Text Available Article in English.The author's recently published monograph on Alexander von Humboldt describes the multiple images of this great cultural icon. The book is a metabiographical study that shows how from the middle of the nineteenth century to the present day Humboldt has served as a nucleus of crystallisation for a variety of successive socio-political ideologies, each producing its own distinctive representation of him. The historiographical implications of this biographical diversity are profound and support current attempts to understand historical scholarship in terms of memory cultures.

  6. 33 CFR 165.1195 - Regulated Navigation Area; Humboldt Bay Bar Channel and Humboldt Bay Entrance Channel, Humboldt...

    2010-07-01

    ... Entrance Channel, Humboldt Bay, California. (b) Definitions. As used in this section— COTP means the... person in charge of a vessel to which this notice applies shall obtain permission to cross within four... place during daylight hours, the vessel has only a single tow or no tow, the visibility at the bar is...

  7. Geschichte der Natur bei Alexander von Humboldt

    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.

  8. Alexander von Humboldt and Coenraad Jacob Temminck

    Raat, A.J.P.

    1976-01-01

    INTRODUCTION In the archives of the Rijksmuseum van Natuurlijke Historie in Leiden there is a map with three letters written by Alexander von Humboldt (17691859) to the first director of the Museum, Coenraad Jacob Temminck (1778-1858). The map, the hard cover of John Gould's "Synopsis of the birds

  9. Research, design and education, Von Humboldt revisited

    Bax, M.F.T.; Doevendans, C.H.; Trum, H.M.G.J.; Langenhuizen, Anja; Ouwerkerk, Marieke van; Rosemann, Jurgen

    2001-01-01

    This paper is a result of reflection on the interrelation design-research-cultivation, and on the interpretation of Von Humboldt's maxim: 'Einheit von Forschung und Lehre', which governed the academic world in the past two centuries. It is argued that 'Forschung' should be interpreted as 'Research

  10. Ludwig Leichhardt und Alexander von Humboldt

    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

  11. 77 FR 12830 - Pershing County Water Conservation District; Notice of Intent To File License Application, Filing...

    2012-03-02

    ... Water Conservation District; Notice of Intent To File License Application, Filing of Pre-Application.... Submitted by: Pershing County Water Conservation District (Pershing County). e. Name of Project: Humboldt... the Commission's regulations. h. Potential Applicant Contact: Bennie Hodges, Pershing County Water...

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

    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.

  13. Hypertextuality in the Alexander von Humboldt Digital Library

    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".

  14. Eureka Littoral Cell CRSMP Humboldt Bay Shoreline Types 2011

    California Natural Resource Agency — 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'...

  15. Alexandre de Humboldt et le Marquis de Laplace

    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.

  16. Alexandre de Humboldt et le Marquis de Laplace

    Eberhard Knobloch

    2014-01-01

    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. Si l’on n’étudie pas seulement leurs œuvres, mais aussi leurs correspondances et le journal américain d’Humboldt, on en conclut qu’il faut réviser l’impression superficielle qui se dégage des publications d’Humboldt. L’estime réciproque entre les deux hommes ne se mit en place que...

  17. Ein Humboldt-Brief in der Autographensammlung Lion Feuchtwangers

    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.

  18. Humboldt SK pilot biodigester receives funding

    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.

  19. Preliminary results of hydrogeologic investigations Humboldt River Valley, Winnemucca, Nevada

    Cohen, Philip M.

    1964-01-01

    Most of the ground water of economic importance and nearly all the ground water closely associated with the flow o# the Humboldt River in the. 40-mile reach near Winnemucca, Nev., are in unconsolidated sedimentary deposits. These deposits range in age from Pliocene to Recent and range in character from coarse poorly sorted fanglomerate to lacustrine strata of clay, silt, sand, and gravel. The most permeable deposit consists of sand and gravel of Lake Lahontan age--the so-called medial gravel unit--which is underlain and overlain by fairly impermeable silt and clay also of Lake Lahontan age. The ultimate source of nearly all the water in the study area is precpitation within the drainage basin of the Humboldt River. Much of this water reaches the study, area as flow or underflow of the Humboldt River and as underflow from other valleys tributary to the study area. Little if any flow from the tributary streams in the study area usually reaches the Humboldt River. Most of the tributary streamflow within the study area evaporates or is transpired by vegetation, but a part percolates downward through unconsolidated deposits of the alluvial fans flanking the mountains and move downgradient as ground-water underflow toward the Humboldt River. Areas that contribute significant amounts of ground-water underflow to. the valley of the Humboldt River within the study area are (1) the valley of the Humboldt River upstream from the study area, (2) the Pole Creek-Rock Creek area, (3) Paradise Valley, and (4) Grass Valley and the northwestern slope of the Sonoma Range. The total average underflow from these areas in the period 1949-61 was about 14,000-19,000 acre-feet per year. Much of this underflow discharged into the Humboldt River within the study area and constituted a large part of the base flow of the river. Streamflow in the Humboldt River increases substantially in the early spring, principally because of runoff to the river in the reaches upstream from the study area

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

    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…

  1. 76 FR 31846 - Safety Zone; 28th Annual Humboldt Bay Festival, Fireworks Display, Eureka, CA

    2011-06-02

    ...-AA00 Safety Zone; 28th Annual Humboldt Bay Festival, Fireworks Display, Eureka, CA AGENCY: Coast Guard... support of the 28th Annual Humboldt Bay Festival Fireworks Display on the specified waters off the South... Humboldt Bay Festival Fireworks Display. The fireworks display is for entertainment purposes. This safety...

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

    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”.

  3. Die Ordnung der Weltkulturen. Alexander von Humboldts Ansichten der Kultur

    Ottmar Ette

    2004-10-01

    Full Text Available Article in German,Abstracts in English, German and Spanish. Focussing Alexander von Humboldt's Vues des Cordillères et Monumens des peuples indigènes de l'Amérique (1810 - 1813 in the context of his monumental work, this essay tries to highlight not only the creation of a new discourse on the Americas but, at the same time, the project(ion of a new order of world cultures. From a transregional perspective, Humboldt's aesthetically most radical book can be fully understood as a musée imaginaire of world cultures whose spatial, temporal, social, literary, frictional, architextual and cultural dimensions allow new insights in one of the most fascinating texts of the early 19th century. Alexander von Humboldt's Vues are creating a transmedial kaleidoscope within a fractal vision of the cultures of the world in the second period of accelerated globalization.

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

    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.

  5. Alexander von Humboldt's invention of the natural landscape

    Kwa, C.

    2005-01-01

    Landscape took on a new meaning through the new science of plant geography of Alexander von Humboldt (1769-1857). In the seventeenth and eighteenth centuries, "landscape" was foremost a painterly genre. Slowly, painted landscapes came to bear on natural surroundings, but by 1800 it was still not

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

    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.

  7. The Humboldt High Magnetic Field Center at Berlin

    Hansel, S; Mueller, H-U; Anh, T T; Richter, B; Rossmann, H; Ortenberg, M von

    2006-01-01

    The Humboldt High Magnetic Field Center is operated by the Chair for Magnetotransport in Solids of the Department of Physics of the Humboldt-Universitaet zu Berlin. It provides DC-magnetic fields up to 20 T, pulsed nondestructive fields of up to 60 T and megagauss fields of up to 331 T using a single-turn coil generator for experimental application focusing on solid state physics. Magneto-optical investigations are carried out in the MIR, NIR and visible wavelength range as well as transport and magnetization experiments. The facility is open to the scientific community and welcomes users within the European project EuroMagNET. The laboratory will be closed in fall 2006 but its experimental facilities will be further accessible to the community in other labs. The single-turn coil generator will be transferred to LNCMP, Toulouse, France, continuing to provide applicable megagauss fields to the European Community

  8. Alexander von Humboldt's perceptions of colonial Spanish America.

    Rebok, Sandra

    2009-01-01

    This study presents an in-depth analysis of Alexander von Humboldt's descriptions and critical comments on the colonial society of the different regions he visited during his well-known expedition through the Americas (1799-1804). The criticisms of colonialism that he expressed, reflecting his personal convictions, have already been the focal point of many studies, but Humboldt also was able to offer a more differentiated assessment through comparisons of regional and local traditions and developments. This essay focuses on his personal diaries, which offer many interesting comments on colonial societies. These considerations and impressions made during the expedition are of particular scholarly value since they were not subject to censorship of any kind.

  9. 78 FR 41390 - Pershing County Water Conservation District; Notice of Application Tendered for Filing with the...

    2013-07-10

    ... Water Conservation District; Notice of Application Tendered for Filing with the Commission and... License. b. Project No.: 14327-000. c. Date filed: June 26, 2013. d. Applicant: Pershing County Water Conservation District. e. Name of Project: Humboldt River Hydro Power Project. f. Location: At the existing U.S...

  10. 78 FR 56944 - Pacific Gas and Electric Company; Humboldt Bay Independent Spent Fuel Storage Installation

    2013-09-16

    ... process waste at the Humboldt Bay ISFSI will not significantly affect the quality of the human environment... NUCLEAR REGULATORY COMMISSION [Docket No. 72-27; NRC-2011-0115] Pacific Gas and Electric Company; Humboldt Bay Independent Spent Fuel Storage Installation AGENCY: Nuclear Regulatory Commission. ACTION...

  11. 76 FR 21329 - Humboldt-Toiyabe National Forest; Nevada; Environmental Impact Statement for Geothermal Leasing...

    2011-04-15

    ... at 1340 Financial Blvd, Reno, NV 89502, is a cooperating agency for this NEPA analysis. Responsible... Impact Statement for Geothermal Leasing on the Humboldt-Toiyabe National Forest AGENCY: Forest Service, USDA. ACTION: Notice of Intent to prepare an environmental impact statement. SUMMARY: The Humboldt...

  12. Allegheny County Map Index Grid

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Map Index Sheets from Block and Lot Grid of Property Assessment and based on aerial photography, showing 1983 datum with solid line and NAD 27 with 5 second grid...

  13. Decontamination sheet

    Hirose, Emiko; Kanesaki, Ken.

    1995-01-01

    The decontamination sheet of the present invention is formed by applying an adhesive on one surface of a polymer sheet and releasably appending a plurality of curing sheets. In addition, perforated lines are formed on the sheet, and a decontaminating agent is incorporated in the adhesive. This can reduce the number of curing operation steps when a plurality steps of operations for radiation decontamination equipments are performed, and further, the amount of wastes of the cured sheets, and operator's exposure are reduced, as well as an efficiency of the curing operation can be improved, and propagation of contamination can be prevented. (T.M.)

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

    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.

  15. 77 FR 51556 - Sheldon National Wildlife Refuge, Humboldt County and Washoe County, NV; Lake County, OR; Final...

    2012-08-24

    ... maintain a population of approximately 800 horses and 80 burros. Wildland fire suppression, and mechanical... rocks and minerals. The existing wilderness proposal would not change. Alternative 2 Intensive Habitat..., and environmental education and interpretation would be maintained or improved. Limited rock and...

  16. County Spending

    Montgomery County of Maryland — This dataset includes County spending data for Montgomery County government. It does not include agency spending. Data considered sensitive or confidential and will...

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

    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.

  18. Der Briefwechsel zwischen Karl Kreil und Alexander von Humboldt, ein wichtiger Beitrag zur Geschichte des Erdmagnetismus

    Karin Reich

    2016-11-01

    Full Text Available Abstract The correspondence between Alexander von Humboldt und Karl Kreil was voluminous, it concerned earth magnetism. But only one letter has survived. This letter was written by Kreil on September 3, 1836; one day later Kreil wrote a letter to Carl Friedrich Gauss with nearly the same contents, some sentences are even literally corresponding. Four letters from Kreil to Humboldt were published in the „Annalen der Physik und Chemie“. Some letters were mentioned in the biographical literature dealing with Kreil. These letters show, that the correspondence covered at least the period until 1851 and give information about the intensive relationship between the two scientists. A further interesting source is the library of Humboldt which unfortunately has not survived. The catalogue mentions nine works of Kreil some of them where annotated by Humboldt. This makes it plausible that the contacts even lasted until 1856. Zusammenfassung Die Korrespondenz zwischen Alexander von Humboldt und Karl Kreil war umfangreich und betraf den Erdmagnetismus. Aber heute ist nur noch ein einziger Brief im Original bekannt. Dieser Brief, den Kreil am 3. September 1836 Alexander von Humboldt zukommen ließ, stimmt inhaltlich und teilweise wortwörtlich mit dem Brief überein, den Kreil nur einen Tag später, am 4. September 1836, an Carl Friedrich Gauß schickte. Vier Briefe von Kreil an Humboldt wurden in den „Annalen der Physik und Chemie“ publiziert, eine nicht allzu große Anzahl weiterer Briefe an Humboldt wurde in der biographischen Literatur über Kreil und in Briefen Kreils an Koller und Gauß erwähnt. Aber nicht nur die lückenhafte und bruchstückhaft bekannte Korrespondenz zwischen Humboldt und Kreil, die bis 1851 reicht, gibt Aufschluss über die Beziehungen, sondern von besonderer Bedeutung ist des Weiteren der Bestand an Kreiliana in der Bibliothek Humboldts. Es handelt sich um neun Werke Kreils, das letzte aus dem Jahr 1856. Nachweisbare

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

    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.

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

    California Natural Resource Agency — 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...

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

    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...

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

    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...

  3. Écriture (auto)biographique dans l'Examen critique d'Alexandre de Humboldt

    Julian Drews

    2016-01-01

    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 particulière...

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

    Sebastião Elias Milani

    2015-01-01

    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.

  5. Eisenmenger ventricular septal defect in a Humboldt penguin (Spheniscus humboldti).

    Laughlin, D S; Ialeggio, D M; Trupkiewicz, J G; Sleeper, M M

    2016-09-01

    The Eisenmenger ventricular septal defect is an uncommon type of ventricular septal defect characterised in humans by a traditionally perimembranous ventricular septal defect, anterior deviation (cranioventral deviation in small animal patients) of the muscular outlet septum causing malalignment relative to the remainder of the muscular septum, and overriding of the aortic valve. This anomaly is reported infrequently in human patients and was identified in a 45-day-old Humboldt Penguin, Spheniscus humboldti, with signs of poor growth and a cardiac murmur. This case report describes the findings in this penguin and summarises the anatomy and classification of this cardiac anomaly. To the authors' knowledge this is the first report of an Eisenmenger ventricular septal defect in a veterinary patient. Copyright © 2016 Elsevier B.V. All rights reserved.

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

    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.

  7. Identität und Differenz Goethes Faust und Alexander von Humboldt

    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.

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

    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.

  9. Carbonate-cemented hardgrounds: a subtle indicator for seep activity offshore Humboldt Bay

    Shapiro, R. S.; Bazard, D.

    2007-12-01

    Active hydrocarbon seeps are common in the accretionary prism of the Cascadia subduction zone. In Humboldt County, California, the prism is exposed at the surface as a series of fault-propagated anticlines trending NW-SE. Offshore of the town of Samoa, a northwest-plunging anticline is breached at approximately 40 meters water depth, allowing hydrocarbons to seep out to the seafloor (40.8° N, 124.25° W). The assumed microbial activity at the seep leads to the production of interstitial carbonate cements forming hardgrounds. Cementation is pervasive and blocks eroded from the seep area of the seabed are transported onshore during storm events. Blocks collected from the beach range from 3--40 centimeters across. The sediments of the blocks are palimpsest transgressive deposits composed mostly of immature fine sand, but ranging from very fine to rounded gravels 4 cm diameter. Cementation is not dependent on grain size as all of the sediment sizes are cemented. In rare void spaces, a concentric banding of cements is obvious. The interstitial cements preserve original sedimentary structures including graded beds and high-angle cross-beds. Centimeter-scale subspherical concretions occur on the undersides of some blocks. There is no disruption of bedding in contrast to other seeps where the expulsion of gas can create pockmarks, brecciation, and other disturbances. Unlike the better studied seeps farther south in the Eel River basin, the Samoa seeps do not seem to host a rich chemosynthetic fauna. Whole and (mostly) fragmented shells preserved by the cemented sands represent a typical benthic inner shelf community including Dendraster, Macoma, and Olivella. Burrows preserved in the sands are largely horizontal and 1--2 mm diameter. Seep carbonate-cemented hardgrounds are less well studied then the more obvious meter-scale 'chemoherm' deposits. However, they may be more prevalent in the rock record and provide a new proxy for locating ancient seeps and hydrocarbon

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

    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.

  11. Mineralogical Diversity and Geology of Humboldt Crater Derived Using Moon Mineralogy Mapper Data

    Martinot, M.; Besse, S.; Flahaut, J.; Quantin-Nataf, C.; Lozac'h, L.; van Westrenen, W.

    2018-02-01

    Moon Mineralogy Mapper (M3) spectroscopic data and high-resolution imagery data sets were used to study the mineralogy and geology of the 207 km diameter Humboldt crater. Analyses of M3 data, using a custom-made method for M3 spectra continuum removal and spectral parameters calculation, reveal multiple pure crystalline plagioclase detections within the Humboldt crater central peak complex, hinting at its crustal origin. However, olivine, spinel, and glass are observed in the crater walls and rims, suggesting these minerals derive from shallower levels than the plagioclase of the central peak complex. High-calcium pyroxenes are detected in association with volcanic deposits emplaced on the crater's floor. Geologic mapping was performed, and the age of Humboldt crater's units was estimated from crater counts. Results suggest that volcanic activity within this floor-fractured crater spanned over a billion years. The felsic mineralogy of the central peak complex region, which presumably excavated deeper material, and the shallow mafic minerals (olivine and spinel) detected in Humboldt crater walls and rim are not in accordance with the general view of the structure of the lunar crust. Our observations can be explained by the presence of a mafic pluton emplaced in the anorthositic crust prior to the Humboldt-forming impact event. Alternatively, the excavation of Australe basin ejecta could explain the observed mineralogical detections. This highlights the importance of detailed combined mineralogical and geological remote sensing studies to assess the heterogeneity of the lunar crust.

  12. Mineralogical Diversity and Geology of Humboldt Crater Derived Using Moon Mineralogy Mapper Data.

    Martinot, M; Besse, S; Flahaut, J; Quantin-Nataf, C; Lozac'h, L; van Westrenen, W

    2018-02-01

    Moon Mineralogy Mapper (M 3 ) spectroscopic data and high-resolution imagery data sets were used to study the mineralogy and geology of the 207 km diameter Humboldt crater. Analyses of M 3 data, using a custom-made method for M 3 spectra continuum removal and spectral parameters calculation, reveal multiple pure crystalline plagioclase detections within the Humboldt crater central peak complex, hinting at its crustal origin. However, olivine, spinel, and glass are observed in the crater walls and rims, suggesting these minerals derive from shallower levels than the plagioclase of the central peak complex. High-calcium pyroxenes are detected in association with volcanic deposits emplaced on the crater's floor. Geologic mapping was performed, and the age of Humboldt crater's units was estimated from crater counts. Results suggest that volcanic activity within this floor-fractured crater spanned over a billion years. The felsic mineralogy of the central peak complex region, which presumably excavated deeper material, and the shallow mafic minerals (olivine and spinel) detected in Humboldt crater walls and rim are not in accordance with the general view of the structure of the lunar crust. Our observations can be explained by the presence of a mafic pluton emplaced in the anorthositic crust prior to the Humboldt-forming impact event. Alternatively, the excavation of Australe basin ejecta could explain the observed mineralogical detections. This highlights the importance of detailed combined mineralogical and geological remote sensing studies to assess the heterogeneity of the lunar crust.

  13. Demographic characteristics and infectious diseases of a population of American black bears in Humboldt County, California.

    Stephenson, Nicole; Higley, J Mark; Sajecki, Jaime L; Chomel, Bruno B; Brown, Richard N; Foley, Janet E

    2015-02-01

    American black bears (Ursus americanus) are common, widely distributed, and broad-ranging omnivorous mammals in northern California forests. Bears may be susceptible to pathogens infecting both domestic animals and humans. Monitoring bear populations, particularly in changing ecosystems, is important to understanding ecological features that could affect bear population health and influence the likelihood that bears may cause adverse impacts on humans. In all, 321 bears were captured between May, 2001, and October, 2003, and blood samples were collected and tested for multiple zoonotic and vector-borne diseases. We found a PCR prevalence of 10% for Anaplasma phagocytophilum, and a seroprevalence of 28% for Toxoplasma gondii, 26% for Borrelia burgdorferi, 26% for A. phagocytophilum, 8% for Trichinella spiralis, 8% for Francisella tularensis and 1% for Yersinia pestis. In addition, we tested bears for pathogens of domestic dogs and found a seroprevalence of 15% for canine distemper virus and 0.6% for canine parvovirus. Our findings show that black bears can become infected with pathogens that are an important public health concern, as well as pathogens that can affect both domestic animals and other wildlife species.

  14. SpecTIR and SEBASS analysis of the National Mining District, Humboldt County, Nevada

    Morken, Todd O.

    The purpose of this study was to evaluate the minerals and materials that could be uniquely identified and mapped from measurements made with airborne hyperspectral SpecTIR VNIR/SWIR and SEBASS TIR sensors over areas in the National Mining District. SpecTIR Corporation and Aerospace Corporation acquired Hyperspectral measurements on June 26, 2008 using their ProSpecTIR and SEBASS sensors respectively. In addition the effects of vegetation, elevation, the atmosphere on spectral measurements were evaluated to determine their impact upon the data analysis and target identification. The National Mining District is located approximately 75 miles northeast of Winnemucca, Nevada at the northern end of the Santa Rosa Mountains. Precious metal mining has been dormant in this area since the 1940's, however with increased metal prices over the last decade economic interest in the region has increased substantially. Buckskin Mountain has a preserved alteration assemblage that is exposed in topographically steep terrain, ideal for exploring what hydrothermal alteration products can be identified and mapped in these datasets. These Visible Near Infrared (VNIR), Short Wave Infrared (SWIR), and Long Wave Infrared (LWIR) hyperspectral datasets were used to identify and map kaolinite, alunite, quartz, opal, and illite/muscovite, all of which are useful exploration target identifiers and can indicate regions of alteration. These mapping results were then combined with and compared to other geospatial data in a geographic information systems (GIS) database. The TIR hyperspectral data provided significant additional information that can benefit geologic exploration and demonstrated its usefulness as an additional tool for geological exploration.

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

    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.

  16. Zwei Briefe auf Guaraní in Alexander von Humboldts Handschrift

    Manfred Ringmacher

    2014-12-01

    Full Text Available Gegenstand des Aufsatzes von Manfred Ringmacher sind zwei Briefe auf Guaraní in Alexander von Humboldts Handschrift. Die Originale der Abschriften wurden im Jahr 1800 in der ehemals jesuitisch betreuten Indianersiedlung Santa María la Mayor am Río Uruguay geschrieben und an den Vizekönig des spanischen Vizekönigreichs La Plata gesandt. Sie sind mit einer zeitgenössischen spanischen Übersetzung versehen; außerdem hat Alexander von Humboldt in französischer Sprache noch einige Erläuterungen gegeben.

  17. Die Fußnote über Geognosia in Humboldts Florae Fribergensis specimen

    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.

  18. 78 FR 21964 - Sheldon National Wildlife Refuge Humboldt and Washoe Counties, NV, and Lake County, OR; Record of...

    2013-04-12

    ... National Wildlife Refuge Complex, P.O. Box 111, Lakeview, OR 97630. Fax: (541) 947-4414. In-person viewing... Refuge encompasses 575,000 acres of sagebrush-steppe habitat located in a remote area of northwest Nevada... management would continue, with the following key enhancements. Native habitat conditions would improve, by...

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

    2011-09-09

    ... appointment (necessary for view/pickup only) during regular business hours at the above address. For more..., restoring fire to improve habitat diversity and plant community succession. Public-use management actions... late stage of plant community succession and avoid potential widespread growth of invasive annual...

  20. Geologic map of the Bateman Spring Quadrangle, Lander County, Nevada

    Ramelli, Alan R.; Wrucke, Chester T.; House, P. Kyle

    2017-01-01

    This 1:24,000-scale geologic map of the Bateman Spring 7.5-minute quadrangle in Lander County, Nevada contains descriptions of 24 geologic units and one cross section. Accompanying text includes full unit descriptions and references. This quadrangle includes lower Paleozoic siliciclastic sedimentary rocks of the Roberts Mountain allochthon, Miocene intrusive dikes, alluvial deposits of the northern Shoshone Range piedmont, and riverine deposits of the Reese and Humboldt rivers.Significant findings include: refined age estimates for the Ordovician-Cambrian Valmy Formation and Devonian Slaven Chert, based on new fossil information; and detailed mapping of late Quaternary fault traces along the Shoshone Range fault system.

  1. Humboldt entre a filosofia da natureza e a ciência moderna / Humboldt between the philosophy of nature and modern science

    Thiago Brito

    2015-08-01

    Full Text Available This work aims to identify the influence of German thought, above all, the philosophy of nature in Humboldt's “modern science”. He brings from the philosophers the conception of the harmonious totality of nature as an organism to recognize the existence of a connection between the forces of nature and its form captured by intuition. The philosophy of nature exposes the bond between the visible world and the upper world that escapes the senses. Humboldt, however, is not only concerned with the contemplation of nature, but also seeks to measure it, bringing it closer to his eyes to understand its internal connections. The technical and scientific instruments are also an extension of his gaze and his hand. Humboldt want to combine the measurement and quantification with the enjoyment afforded by intellectual intuition in touch with the landscape. The Cosmos, therefore, is presented as a whole to be deciphered through observations and comparisons, but also through an aesthetic perception of natural phenomena.

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

    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.

  3. 78 FR 49723 - Humboldt-Toiyabe National Forests; Ely Ranger District; Ely Westside Rangeland Project

    2013-08-15

    ... Month (AUM) production for the Humboldt National Forest while improving the gap between existing and...: 1. Current Management Alternative: Continue current grazing management. 2. No Grazing Alternative... documents. (Authority: 40 CFR 1501.7 and 1508.22; Forest Service Handbook 1909.15, Section 21) Dated: August...

  4. Mineralogical diversity and geology of Humboldt crater derived using Moon Mineralogy Mapper data

    Martinot, M.; Besse, S.; Flahaut, J.; Quantin-Nataf, C.; Lozac'h, L.; van Westrenen, W.

    2018-01-01

    Moon Mineralogy Mapper (M3) spectroscopic data and high-resolution imagery data sets were used to study the mineralogy and geology of the 207 km diameter Humboldt crater. Analyses of M3 data, using a custom-made method for M3 spectra continuum removal and spectral parameters calculation, reveal

  5. On the carbonic acid distributed in the atmosphere, of Alexander Von Humboldt

    Pelkoswski, Joaquin

    2001-01-01

    Translation that is made of a essay of Alexander Von Humboldt in which describes their own experiences related with the carbon dioxide (denominated carbonic acid in that time) in the atmosphere and in the we can capture the big difficulties around their measurement and their presence in the great gassy cover that surrounds us and it allows us to live

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

    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.

  7. Defender of Humanism in the Alienated World--Citrine's Humanistic Journey in "Humboldt's Gift"

    Xiang, Fang

    2016-01-01

    The novel "Humboldt's Gift" reveals the dilemma of two intelligentsia in the modern society where consumerism and materialism further aggravates the alienation among people and the culture is degraded into a capital form and is commercialized, so the dignity and even the survival of poets are threatened by this material-centered society.…

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

    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.)

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

    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.

  10. Progress in Decommissioning the Humboldt Bay Power Plant - 13604

    Rod, Kerry [PG and E Utility, Humboldt Bay Power Plant, 1000 King Salmon Ave. Eureka, CA 95503 (United States); Shelanskey, Steven K. [Anata Management Solutions, 5180 South Commerce Dr,, Suite F Murray, UT 84107 (United States); Kristofzski, John [CH2MHILL, 295 Bradley Blvd. Suite 300, Richland WA 99353 (United States)

    2013-07-01

    Decommissioning of the Pacific Gas and Electric (PG and E) Company Humboldt Bay Power Plant (HBPP) Unit 3 nuclear facility has now, after more than three decades of SAFSTOR and initial decommissioning work, transitioned to full-scale decommissioning. Decommissioning activities to date have been well orchestrated and executed in spite of an extremely small work site with space constricted even more by other concurrent on-site major construction projects including the demolition of four fossil units, construction of a new generating station and 60 KV switchyard upgrade. Full-scale decommissioning activities - now transitioning from Plant Systems Removal (PG and E self-perform) to Civil Works Projects (contractor performed) - are proceeding in a safe, timely, and cost effective manner. As a result of the successful decommissioning work to date (approximately fifty percent completed) and the intense planning and preparations for the remaining work, there is a high level of confidence for completion of all HBPP Unit 3 decommissions activities in 2018. Strategic planning and preparations to transition into full-scale decommissioning was carried out in 2008 by a small, highly focused project team. This planning was conducted concurrent with other critical planning requirements such as the loading of spent nuclear fuel into dry storage at the Independent Spent Fuel Storage Installation (ISFSI) finishing December 2008. Over the past four years, 2009 through 2012, the majority of decommissioning work has been installation of site infrastructure and removal of systems and components, known as the Plant System Removal Phase, where work scope was dynamic with significant uncertainty, and it was self-performed by PG and E. As HBPP Decommissioning transitions from the Plant System Removal Phase to the Civil Works Projects Phase, where work scope is well defined, a contracting plan similar to that used for Fossil Decommissioning will be implemented. Award of five major work scopes

  11. Progress in Decommissioning the Humboldt Bay Power Plant - 13604

    Rod, Kerry; Shelanskey, Steven K.; Kristofzski, John

    2013-01-01

    Decommissioning of the Pacific Gas and Electric (PG and E) Company Humboldt Bay Power Plant (HBPP) Unit 3 nuclear facility has now, after more than three decades of SAFSTOR and initial decommissioning work, transitioned to full-scale decommissioning. Decommissioning activities to date have been well orchestrated and executed in spite of an extremely small work site with space constricted even more by other concurrent on-site major construction projects including the demolition of four fossil units, construction of a new generating station and 60 KV switchyard upgrade. Full-scale decommissioning activities - now transitioning from Plant Systems Removal (PG and E self-perform) to Civil Works Projects (contractor performed) - are proceeding in a safe, timely, and cost effective manner. As a result of the successful decommissioning work to date (approximately fifty percent completed) and the intense planning and preparations for the remaining work, there is a high level of confidence for completion of all HBPP Unit 3 decommissions activities in 2018. Strategic planning and preparations to transition into full-scale decommissioning was carried out in 2008 by a small, highly focused project team. This planning was conducted concurrent with other critical planning requirements such as the loading of spent nuclear fuel into dry storage at the Independent Spent Fuel Storage Installation (ISFSI) finishing December 2008. Over the past four years, 2009 through 2012, the majority of decommissioning work has been installation of site infrastructure and removal of systems and components, known as the Plant System Removal Phase, where work scope was dynamic with significant uncertainty, and it was self-performed by PG and E. As HBPP Decommissioning transitions from the Plant System Removal Phase to the Civil Works Projects Phase, where work scope is well defined, a contracting plan similar to that used for Fossil Decommissioning will be implemented. Award of five major work scopes

  12. Chlamydia - CDC Fact Sheet

    ... Archive STDs Home Page Bacterial Vaginosis (BV) Chlamydia Gonorrhea Genital Herpes Hepatitis HIV/AIDS & STDs Human Papillomavirus ( ... sheet Pelvic Inflammatory Disease (PID) – CDC fact sheet Gonorrhea – CDC fact sheet STDs Home Page Bacterial Vaginosis ( ...

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

    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.

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

    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.

  15. GASN sheets

    2013-12-01

    This document gathers around 50 detailed sheets which describe and present various aspects, data and information related to the nuclear sector or, more generally to energy. The following items are addressed: natural and artificial radioactive environment, evolution of energy needs in the world, radioactive wastes, which energy for France tomorrow, the consequences in France of the Chernobyl accident, ammunitions containing depleted uranium, processing and recycling of used nuclear fuel, transport of radioactive materials, seismic risk for the basic nuclear installations, radon, the precautionary principle, the issue of low doses, the EPR, the greenhouse effect, the Oklo nuclear reactors, ITER on the way towards fusion reactors, simulation and nuclear deterrence, crisis management in the nuclear field, does nuclear research put a break on the development of renewable energies by monopolizing funding, nuclear safety and security, the plutonium, generation IV reactors, comparison of different modes of electricity production, medical exposure to ionizing radiations, the control of nuclear activities, food preservation by ionization, photovoltaic solar collectors, the Polonium 210, the dismantling of nuclear installations, wind energy, desalination and nuclear reactors, from non-communication to transparency about nuclear safety, the Jules Horowitz reactor, CO 2 capture and storage, hydrogen, solar energy, the radium, the subcontractors of maintenance of the nuclear fleet, biomass, internal radio-contamination, epidemiological studies, submarine nuclear propulsion, sea energy, the Three Mile Island accident, the Chernobyl accident, the Fukushima accident, the nuclear after Fukushima

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

    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

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

    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

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

    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.

  19. Evaluation of nuclear facility decommissioning projects. Status report. Humboldt Bay Power Plant Unit 3, SAFSTOR decommissioning

    Baumann, B.L.; Haffner, D.R.; Miller, R.L.; Scotti, K.S.

    1986-06-01

    This document explains the purpose of the US Nuclear Regulatory Commission's (NRC) Evaluation of Nuclear Facility Decommissioning Projects (ENFDP) program and summarizes information concerning the decommissioning of the Humboldt Bay Power Plant (HBPP) Unit 3 facility. Preparations to put this facility into a custodial safe storage (SAFSTOR) mode are currently scheduled for completion by June 30, 1986. This report gives the status of activities as of June 1985. A final summary report will be issued after completion of this SAFSTOR decommissioning activity. Information included in this status report has been collected from the facility decommissioning plan, environmental report, and other sources made available by the licensee. This data has been placed in a computerized data base system which permits data manipulation and summarization. A description of the computer reports that can be generated by the decommissioning data system (DDS) for Humboldt Bay and samples of those reports are included in this document

  20. Alexander von Humboldt: The American Hemisphere and TransArea Studies

    Ottmar Ette

    2014-06-01

    Full Text Available From the very first landing in a bounteous tropical world, European wonderment in the face of so many marvels naturally possessed a dimension that strived for knowledge and tried to conjoin a new world with old and antiquarian knowledge in a very reductionist fashion. Is Alexander von Humboldt therefore merely a new, a “second Columbus,” as he was so often described in the further course of the history of his reception? Does he simply repeat the gestures and res gestae for which the great discoverers had already set the example and in a way even predetermined? Are Humboldt and Bonpland thus caught in the trap of the perception of the other in occidental culture that enters the gray area of colonial expansion and an imperial(ist view?

  1. Temporal variation of seston biomarkers within the Humboldt Current System off northern Chile (21

    Sergio Rossi

    2012-06-01

    Full Text Available Proportions and concentrations of seston fatty acids, n-alkanes and glycerol dialkyl glycerol tetraethers (GDGTs were used to assess potential differences in the phytoplankton composition and food quality in the Humboldt Current System (winter 2006, summer 2007 and winter 2007 in surface, oxycline, intermediate and bottom water layers. The zone below the intermediate depth was poorer in fatty acids (minimum 15 – maximum 117mg fatty acids L

  2. Radiological dose to man through the marine pathway from reactor operations at Humboldt Bay, California

    Noshkin, V.E.; Robison, W.L.; Harrison, F.L.

    1976-01-01

    Source-strength measurements and environmental samples taken at the Humboldt Bay Nuclear Reactor site near Eureka, California, since mid-1971 were used to evaluate the potential dose to man resulting from an aquatic release of radioactivity from the reactor. In this report, we provide an evaluation of individual and population dose through the marine pathways during 1972 and 1973 computed by the methods recommended by the U.S. Nuclear Regulatory Commission

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

    1980-08-01

    the best and most compatible economic, environmental, and social uses of the Humboldt Bay area. Such data includes inven- tories of uses and conditions... personal communication). Since 1973, 22 general permits have been granted by the Harbor District; of these, there were 3 for submarine pipeline/cable...other water charateristics determine the type and abundance. Distribution Water habitats are distributed throughout the study area. Deep and shallow

  4. Humboldt y Bonpland en Popayán. Una visita histórica

    Gerardo Paz Otero

    1968-01-01

    Full Text Available El barón von Humboldt y el médico francés Aimé Bonpland fueron huéspedes muy gratos del Popayán colonial durante su histórico viaje de estudios; especial interés tenían los ilustres visitantes en conocer a Caldas y enterarse de sus observaciones cosmológicas ya ponderadas por Mutis.

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

    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.

  6. Hydrogeochemical studies of historical mining areas in the Humboldt River basin and adjacent areas, northern Nevada

    Nash, J. Thomas

    2005-01-01

    The study area comprises the Humboldt River Basin and adjacent areas, with emphasis on mining areas relatively close to the Humboldt River. The basin comprises about 16,840 mi2 or 10,800,000 acres. The mineral resources of the Humboldt Basin have been investigated by many scientists over the past 100 years, but only recently has our knowledge of regional geology and mine geology been applied to the understanding and evaluation of mining effects on water and environmental quality. The investigations reported here apply some of the techniques and perspectives developed in the Abandoned Mine Lands Initiative (AMLI) of the U.S. Geological Survey (USGS), a program of integrated geological-hydrological-biological-chemical studies underway in the Upper Animas River watershed in Colorado and the Boulder River watershed in, Montana. The goal of my studies of sites and districts is to determine the character of mining-related contamination that is actively or potentially a threat to water quality and to estimate the potential for natural attenuation of that contamination. These geology-based studies and recommendations differ in matters of emphasis and data collection from the biology-based assessments that are the cornerstone of environmental regulations.

  7. The future of coastal upwelling in the Humboldt current from model projections

    Oyarzún, Damián; Brierley, Chris M.

    2018-03-01

    The Humboldt coastal upwelling system in the eastern South Pacific ocean is one of the most productive marine ecosystems in the world. A weakening of the upwelling activity could lead to severe ecological impacts. As coastal upwelling in eastern boundary systems is mainly driven by wind stress, most studies so far have analysed wind patterns change through the 20th and 21st Centuries in order to understand and project the phenomenon under specific forcing scenarios. Mixed results have been reported, and analyses from General Circulation Models have suggested even contradictory trends of wind stress for the Humboldt system. In this study, we analyse the ocean upwelling directly in 13 models contributing to phase 5 of the Coupled Model Intercomparison Project (CMIP5) in both the historical simulations and an extreme climate change scenario (RCP8.5). The upwelling is represented by the upward ocean mass flux, a newly-included variable that represents the vertical water transport. Additionally, wind stress, ocean stratification, Ekman layer depth and thermocline depth were also analysed to explore their interactions with coastal upwelling throughout the period studied. The seasonal cycle of coastal upwelling differs between the Northern and Southern Humboldt areas. At lower latitudes, the upwelling season spans most of the autumn, winter and spring. However, in the Southern Humboldt area the upwelling season takes place in spring and the summertime with downwelling activity in winter. This persists throughout the Historical and RCP8.5 simulations. For both the Northern and Southern Humboldt areas an increasing wind stress is projected. However, different trends of upwelling intensity are observed away from the sea surface. Whereas wind stress will continue controlling the decadal variability of coastal upwelling on the whole ocean column analysed (surface to 300 m depth), an increasing disconnect with upwelling intensity is projected below 100 m depth throughout the 21

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

    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

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

    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.

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

    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.

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

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

    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

  13. Revolution and Exploration: the English Translations of Rousseau and Humboldt by Helen Maria Williams

    Paula Yurss Lasanta

    2017-12-01

    Full Text Available British author Helen Maria Williams (1759-1827 was a well-known figure in the eighteenth century literary circles, whose work was praised by Elizabeth Montagu, Samuel Johnson, Dorothy and William Wordsworth, Mary Wollstonecraft, Hester Piozzi or Alexander von Humboldt.  In her early poems  Edwin and Eltruda (1782, An Ode to the Peace (1783 and Peru (1784, Williams starts to reveal her political tendencies by appealing to strong empathic feelings as a key to social and political transformation. As a result of her interest in politics, she travelled to France in 1790 and published her most acclaimed work Letters from France (1790. However, the rest of her production has received little critical attention by modern scholars, who have overlooked her involvement in translation. Williams’ only extant novel, Julia (1790 is in fact a creative translation of Rousseau’s Julie ou La Nouvelle Héloïse (1761, in which Williams includes poems that evidence her interest in revolutionary politics. Four years later, she translated Bernardin de Saint Pierre’s Paul et Virginie, while she was imprisoned in Paris. While translating novels was regarded as a respectable exercise for women writers, Williams challenges gender assumptions by translating Researches (1814 and the seven volumes of Personal Narrative (1814-1829, which had been produced by one of the most influential eighteenth century scientists, Alexander von Humboldt. This article interrogates how Williams makes use of translation to access areas of knowledge traditionally restricted to men, such as philosophy, politics and science. For this purpose, I will focus on her translations of the work of two leading intellectual figures of the eighteenth century,  Rousseau and Von Humboldt.

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

    Martín Chávez Hoffmeister

    Full Text Available 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.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.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.

  15. A Case of endoscopic retrieval of a long bamboo stick from a Humboldt penguin (Spheniscus humboldti).

    Jung, Woo-Sung; Ko, Minho; Cho, Hyun Kee; Kang, Byung-Jae; Choi, Jung Hoon; Chung, Jin-Young

    2017-02-28

    An eighteen-month-old female Humboldt penguin (Spheniscus humboldti) that was 50 cm in length and 4.5 kg in weight was presented with anorexia and vomiting. The hematological and blood biochemical profiles revealed no remarkable findings, and no Salmonella, Shigella or Vibrio spp. were isolated from the fecal culture. However, radiographic imaging revealed a long linear foreign body presenting from the lower esophagus to the stomach. To retrieve this foreign body, flexible endoscopic extraction was performed using flexible rat tooth grasping forceps. A long bamboo stick (29 × 1 cm) was removed from the stomach, and the penguin fully recovered.

  16. "Die Toten reiten schnelle." Literarische Zitate in Briefen von und an Alexander von Humboldt

    Ingo Schwarz

    2007-04-01

    Full Text Available Article in GermanAbstract in English and GermanAlexander von Humboldt and his correspondents liked to enrich or embellish their letters with quotations from classic works of ancient literature as well as from recent poems, plays, or novels. This paper tries to show that references to literature were very often used in order to express thoughts and feelings more clearly not so much for impressing the recipients of letters with high education. In educated circles a good knowledge of ancient and modern works of literature was a standard requirement, which often allowed the letter writers to use quotations in a playful manner.

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

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

    Enrique Arbeláez-Cortés

    2015-05-01

    Full Text Available Collections of tissue samples stand as keystone sources of molecular information to construct biodiversity knowledge, and are particularly useful in megadiverse countries. In 1998 the Humboldt Institute (Instituto de Investigación de Recursos Biológicos Alexander von Humboldt began a tissue collection of Colombian biodiversity (IAvH-CT and the aim of this work is to present a diagnostic and an historical narrative for that collection, constructed by compiling information and experiences on its management as well as by organizing and curating the information of each catalogued sample. After 16 years the IAvH-CT harbors 16469 samples, which represent around 2530 species from 1289 genera, and 323 families of the Colombian biodiversity. Samples are biased toward plants and birds (84 %, but also include other animal taxa. Geographically, IAvH-CT includes samples from all Colombian departments, but there is a broad variation in their coverage. When compared with other international collections IAvH-CT fulfills several standards of sample storage and data management, but have a major weakness that is that several tissues seem to lack a vouchered specimen. Tissues housed at IAvH-CT have been included in at least 48 studies published in several scientific journals. IAvH-CT is implementing strategies to improve curatorial standards, fill-up taxonomic gaps, and to explore the potential of its samples to understand the outstanding Colombian biota in a cooperative research frame among institutions.

  19. Nachrichten aus Amerika oder wie man in Koblenz von Humboldts Reise nach Amerika erfuhr

    Franz-J. Weihrauch

    2006-04-01

    Full Text Available Article in German, Abstracts in English and German.In the almost forgotten Jacobinic newspaper “Der Bewohner des West Rheins” (i.e. The Citizen of the Western Rhine, published in Koblenz/Rhine there appeared on Brumaire 29th of the year IX (i.e. November 20th 1800 a summary of a letter dated January 24th, 1800, sent by Alexander von Humboldt from Laguaira, Venezuela to his colleague Antoine François de Fourcroy (1755-1809 in Paris. It takes Humboldt’s letter six months to reach the French capital and further four months later it arrives in the (at that time French province of the departements on the left bank of the Rhine. This up to now unknown publication of a a letter by Humboldt in the newspaper “Der Bewohner des West Rheins”, a paper of only regional significance, vividly shows two parallel developments: on the one hand the spreading of knowledge from the centre to the perifery, from the capital to the province and on the other hand the spreading of knowledge from the already highly specialized scientific network to the general newspaper business that “generates” publicity and popularizes knowledge.

  20. Closing and opening fisheries following oil spills; a case study in Humboldt Bay, California

    Challenger, G.E.; Mauseth, G.S.

    1998-01-01

    The issue of fishery evaluation criteria following oil spills in lakes, rivers and seas was discussed. The case of the November 1997 incident in which 4,450 gallons of an intermediate fuel oil was released into Humboldt Bay, California was described. Humboldt Bay contains important shellfish mariculture operations that were subsequently closed by the California Dept. of Health Services (CDHS). The closure and reopening protocols for the fishery were summarized. Suggestions for technical input to resource management decisions were presented. During an initial meeting with regulatory agencies, four levels of criteria were established for rescinding the fishery closure. The fishery closure would be rescinded when: (1) there was a lack of visible oil sheen on the water throughout the commercial growing areas, (2) shellfish tissue samples met the risk-based criteria developed by CDHS, for all analytes of concern in the source oil, (3) all water samples met the risk-based criteria developed by CDHS for all analytes of concern in the source oil, and (4) tissue samples passed an independent sensory evaluation. However, no risk-based water quality criteria were developed and only items 1, 2, and 4 were included in the analysis. 15 refs., 3 tabs., 1 fig

  1. What Would Humboldt Say: A Case of General Bildung in Vocational Education?

    Ruhi Tyson

    2016-12-01

    Full Text Available A classic philosopher in the Bildung tradition, Humboldt argued that general Bildung was the opposite of specialist training (vocational education. This has been a matter of contention and the aim here is to revisit the issue through an empirical case study. In the vocational education biography of craft master Wolfgang B. he speaks about aspects of his education that have much in common with Humboldt’s ideal of general Bildung but transposed into the context of vocational education and training (VET. The concept of vocationalism (Beruflichkeit provides context to the present argument which is that the contrast Humboldt made is relevant but not in the sense of there being two categories of education (general and vocational but rather two expressions of pedagogy: one expansive and one exclusive. Furthermore, there are two versions of general or expansive Bildung present in the case. The conclusions are that empirical studies of vocational Bildung expand on the concept of Bildung, increase our understanding of how VET contains affordances of Bildung and of the curriculum-patterns related to this.

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

    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.

  3. Le temps du paysage. Alexandre de Humboldt et la géohistoire du sentiment de la nature

    Briffaud , Serge

    2006-01-01

    L'article propose une analyse de la théorie de Humboldt, exposé notamment dans Cosmos, sur l'histoire du sentiment de la nature et les étapes de l'émergence d'une vision "paysagère" de la nature en Occident.

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

    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

  5. Ice sheet in peril

    Hvidberg, Christine Schøtt

    2016-01-01

    Earth's large ice sheets in Greenland and Antarctica are major contributors to sea level change. At present, the Greenland Ice Sheet (see the photo) is losing mass in response to climate warming in Greenland (1), but the present changes also include a long-term response to past climate transitions...

  6. Mobility Balance Sheet 2009

    Jorritsma, P.; Derriks, H.; Francke, J.; Gordijn, H.; Groot, W.; Harms, L.; Van der Loop, H.; Peer, S.; Savelberg, F.; Wouters, P.

    2009-06-01

    The Mobility Balance Sheet provides an overview of the state of the art of mobility in the Netherlands. In addition to describing the development of mobility this report also provides explanations for the growth of passenger and freight transport. Moreover, the Mobility Balance Sheet also focuses on a topical theme: the effects of economic crises on mobility. [nl

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

    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. PHYTOPLANKTON - WET WEIGHT and Other Data from ALE ANDRO DE HUMBOLDT From North Pacific Ocean from 19780108 to 19780407 (NODC Accession 9700071)

    National Oceanic and Atmospheric Administration, Department of Commerce — Phytoplankton data were collected from net tows from the Ale Andro De Humboldt in the North Pacific Ocean from 08 January 1978 to 07 April 1978. Chlorophyll A and...

  9. 77 FR 67391 - Notice of Proposed Supplementary Rules on Public Land in Water Canyon, Humboldt County, NV

    2012-11-09

    ... most recreational use. Zone 1 is a fenced corridor of public land within Township 35 North, Range 38... along Water Canyon Road, in Township 36 North Range 38 East, parts of sections 2, 11 and 12. A map of... converted to expel a projectile; including, but not limited to, by the action of an explosive, a compressed...

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

    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...

  11. Strategies for control of sudden oak death in Humboldt County-informed guidance based on a parameterized epidemiological model

    João A. N. Filipe; Richard C. Cobb; David M. Rizzo; Ross K. Meentemeyer; Christopher A.. Gilligan

    2010-01-01

    Landscape- to regional-scale models of plant epidemics are direly needed to predict largescale impacts of disease and assess practicable options for control. While landscape heterogeneity is recognized as a major driver of disease dynamics, epidemiological models are rarely applied to realistic landscape conditions due to computational and data limitations. Here we...

  12. Gold and other metals in big sagebrush (Artemisia tridentata Nutt.) as an exploration tool, Gold Run District, Humboldt County, Nevada

    Erdman, J.A.; Cookro, T.M.; O'Leary, R. M.; Harms, T.F.

    1988-01-01

    Big sagebrush - a cold-desert species that dominates the terrain over large parts of western United States - was sampled along several traverses that crossed thermally metamorphosed limestone, phyllitic shale, and schist of the Middle and Upper Cambrian Preble Formation that host skarn-, disseminated gold and silver-, and hot springs gold-type mineral occurrences. Patterns of detectable levels of gold (8 to 28 ppb or ng g-1) in ash of new growth were consistent with areas affected by known or suspected gold mineralization. Soils collected along one of the traverses where a selenium-indicator plant was common contained no gold above background levels of 2ppb, but were consistently high in As, Sb, and Zn, and several samples were unusually high in Se (maximum 11 ppm or ??g g-1). Sagebrush along this traverse contained Li at levels above norms for this species. We also found a puzzling geochemical anomaly at a site basinward from active hot springs along a range-front fault scarp. Sagebrush at this site contained a trace of gold and an unusually high concentration of Cd (13 ppm) and the soil had anomalous concentrations of Cd and Bi (3.2 and 6 ppm, respectively). The source of this anomaly could be either metal-rich waters from an irrigation ditch or leakage along a buried fault. Despite the limited nature of the study, we conclude that gold in sagebrush could be a cost-effective guide to drilling locations in areas where the geology seems favorable for disseminated and vein precious metals. ?? 1988.

  13. Carbon sheet pumping

    Ohyabu, N.; Sagara, A.; Kawamura, T.; Motojima, O.; Ono, T.

    1993-07-01

    A new hydrogen pumping scheme has been proposed which controls recycling of the particles for significant improvement of the energy confinement in toroidal magnetic fusion devices. In this scheme, a part of the vacuum vessel surface near the divertor is covered with carbon sheets of a large surface area. Before discharge initiation, the sheets are baked up to 700 ∼ 1000degC to remove the previously trapped hydrogen atoms. After being cooled down to below ∼ 200degC, the unsaturated carbon sheets trap high energy charge exchange hydrogen atoms effectively during a discharge and overall pumping efficiency can be as high as ∼ 50 %. (author)

  14. A Alexander von Humboldt, el Ciudadano Universal, en su natalicio 245

    José Leonardo De Sousa

    2018-04-01

    Full Text Available Hace 245 años, en la escala del tiempo del planeta, Alexander von Humboldt vislumbró la luz de la vida el día 14 de septiembre de 1769. A nuestro entender fue el máximo y, quizás, uno de los últimos exponentes de ese movimiento del Enciclopedismo Europeo conocido como la Ilustración . Tal fue su contribución al conocimiento integral del territorio americano que fue calificado por el Libertador Simón Bolívar como el “ descubridor científico del Nuevo Mundo ” y declarado como Ciudadano Mexicano, en 1827, por Guadalupe Victoria (primer presidente de México y luego, como Benemérito de la Patria por el presidente mexicano Benito Juárez.

  15. Anesthesia Fact Sheet

    ... Education About NIGMS NIGMS Home > Science Education > Anesthesia Anesthesia Tagline (Optional) Middle/Main Content Area En español ... Version (464 KB) Other Fact Sheets What is anesthesia? Anesthesia is a medical treatment that prevents patients ...

  16. Structural Biology Fact Sheet

    ... NIGMS NIGMS Home > Science Education > Structural Biology Structural Biology Tagline (Optional) Middle/Main Content Area PDF Version (688 KB) Other Fact Sheets What is structural biology? Structural biology is the study of how biological ...

  17. Radiation protecting sheet

    Makiguchi, Hiroshi.

    1989-01-01

    As protection sheets used in radioactivity administration areas, a thermoplastic polyurethane composition sheet with a thickness of less 0.5 mm, solid content (ash) of less than 5% and a shore D hardness of less than 60 is used. A composite sheet with thickness of less than 0.5 mm laminated or coated with such a thermoplastic polyurethane composition as a surface layer and the thermoplastic polyurethane composition sheet applied with secondary fabrication are used. This can satisfy all of the required properties, such as draping property, abrasion resistance, high breaking strength, necking resistance, endurance strength, as well as chemical resistance and easy burnability in burning furnace. Further, by forming uneveness on the surface by means of embossing, etc. safety problems such as slippage during operation and walking can be overcome. (T.M.)

  18. Global ice sheet modeling

    Hughes, T.J.; Fastook, J.L.

    1994-05-01

    The University of Maine conducted this study for Pacific Northwest Laboratory (PNL) as part of a global climate modeling task for site characterization of the potential nuclear waste respository site at Yucca Mountain, NV. The purpose of the study was to develop a global ice sheet dynamics model that will forecast the three-dimensional configuration of global ice sheets for specific climate change scenarios. The objective of the third (final) year of the work was to produce ice sheet data for glaciation scenarios covering the next 100,000 years. This was accomplished using both the map-plane and flowband solutions of our time-dependent, finite-element gridpoint model. The theory and equations used to develop the ice sheet models are presented. Three future scenarios were simulated by the model and results are discussed

  19. Energy information sheets

    NONE

    1995-07-01

    The National Energy Information Center (NEIC), as part of its mission, provides energy information and referral assistance to Federal, State, and local governments, the academic community, business and industrial organizations, and the public. The Energy Information Sheets was developed to provide general information on various aspects of fuel production, prices, consumption, and capability. Additional information on related subject matter can be found in other Energy Information Administration (EIA) publications as referenced at the end of each sheet.

  20. Percepción, descripción y explicación en la obra de Alexander Von Humboldt

    Bárbara Jiménez Pazos

    2017-01-01

    Full Text Available Es recurrente la tendencia a considerar a Alexander von Humboldt como autor romántico-naturalista, dada la combinación del método científico de análisis empírico de la naturaleza con su visión estético-subjetiva que posee ciertos rasgos "románticos". Un estudio del léxico empleado por Humboldt en las descripciones de la naturaleza revela, sin embargo, el predominio del lenguaje estrictamente científico e intersubjetivo sobre el subjetivo. La presencia de rasgos semánticos "románticos" no es, empero, meramente ornamental, sino que cumple una función estética que, en la percepción humboldtiana de la naturaleza, es un complemento subjetivo indispensable dentro de su imagen holística del mundo.

  1. Trophic relationships between the jumbo squid (Dosidicus gigas and the lightfish (Vinciguerria lucetia in the Humboldt Current System off Peru

    Rigoberto Rosas-Luis

    2011-04-01

    Full Text Available Acoustic surveys for assessing the biomass and distribution of the jumbo squid (Dosidicus gigas and the lightfish (Vinciguerria lucetia were carried out in the Humboldt Current System of Peru in 2007 and 2008. At the same time, 937 jumbo squid were caught and their stomach contents analyzed. The diet of the jumbo squid was dominated by mesopelagic fish. The first component of their fish diet was V. lucetia and the second component was the myctophid fish Diogenichthys laternatus. Acoustic biomass estimates of these species show that V. lucetia is an important component in aggregative structures in the Humboldt Current System of Peru and its distribution and movements are closely related to the migratory movements of the jumbo squid. The trophic relationship observed between D. gigas and V. lucetia promotes an increase in jumbo squid biomass and, has a positive trophic effect on the ocean ecosystem.

  2. Figures et Unité de l’idée de montagne chez Alexandre von Humboldt

    Debarbieux, Bernard

    2012-01-01

    Bien que la montagne soit omniprésente dans ses écrits, Alexandre von Humboldt n’a consacré aucun de ses ouvrages en particulier à ce type de région ou de milieu. Cet essai propose d’expliciter le statut de la montagne en tant que catégorie de la connaissance dans la vision du monde qu’Humboldt a élaborée. Plus précisément, cet essai montre que derrière la diversité apparente des façons qu’il a de mobiliser la notion, il existe une cohérence d’ensemble dont il n’a jamais véritablement rendu c...

  3. Allegheny County Air Quality

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Air quality data from Allegheny County Health Department monitors throughout the county. Air quality monitored data must be verified by qualified individuals before...

  4. Allegheny County Municipal Boundaries

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset demarcates the municipal boundaries in Allegheny County. Data was created to portray the boundaries of the 130 Municipalities in Allegheny County the...

  5. Allegheny County Addressing Landmarks

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains address points which represent physical address locations assigned by the Allegheny County addressing authority. Data is updated by County...

  6. Allegheny County Council Districts

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset portrays the boundaries of the County Council Districts in Allegheny County. The dataset is based on municipal boundaries and City of Pittsburgh ward...

  7. Allegheny County Address Points

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains address points which represent physical address locations assigned by the Allegheny County addressing authority. Data is updated by County...

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

    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.

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

    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.

  10. Disintegration of liquid sheets

    Mansour, Adel; Chigier, Norman

    1990-01-01

    The development, stability, and disintegration of liquid sheets issuing from a two-dimensional air-assisted nozzle is studied. Detailed measurements of mean drop size and velocity are made using a phase Doppler particle analyzer. Without air flow the liquid sheet converges toward the axis as a result of surface tension forces. With airflow a quasi-two-dimensional expanding spray is formed. The air flow causes small variations in sheet thickness to develop into major disturbances with the result that disruption starts before the formation of the main break-up region. In the two-dimensional variable geometry air-blast atomizer, it is shown that the air flow is responsible for the formation of large, ordered, and small chaotic 'cell' structures.

  11. Safety advice sheets

    HSE Unit

    2013-01-01

    You never know when you might be faced with questions such as: when/how should I dispose of a gas canister? Where can I find an inspection report? How should I handle/store/dispose of a chemical substance…?   The SI section of the DGS/SEE Group is primarily responsible for safety inspections, evaluating the safety conditions of equipment items, premises and facilities. On top of this core task, it also regularly issues “Safety Advice Sheets” on various topics, designed to be of assistance to users but also to recall and reinforce safety rules and procedures. These clear and concise sheets, complete with illustrations, are easy to display in the appropriate areas. The following safety advice sheets have been issued so far: Other sheets will be published shortly. Suggestions are welcome and should be sent to the SI section of the DGS/SEE Group. Please send enquiries to general-safety-visits.service@cern.ch.

  12. Ice Sheets & Ice Cores

    Mikkelsen, Troels Bøgeholm

    Since the discovery of the Ice Ages it has been evident that Earth’s climate is liable to undergo dramatic changes. The previous climatic period known as the Last Glacial saw large oscillations in the extent of ice sheets covering the Northern hemisphere. Understanding these oscillations known....... The first part concerns time series analysis of ice core data obtained from the Greenland Ice Sheet. We analyze parts of the time series where DO-events occur using the so-called transfer operator and compare the results with time series from a simple model capable of switching by either undergoing...

  13. Energy information sheets

    1993-12-02

    The National Energy Information Center (NEIC), as part of its mission, provides energy information and referral assistance to Federal, State, and local governments, the academic community, business and industrial organizations, and the general public. Written for the general public, the EIA publication Energy Information Sheets was developed to provide information on various aspects of fuel production, prices, consumption and capability. The information contained herein pertains to energy data as of December 1991. Additional information on related subject matter can be found in other EIA publications as referenced at the end of each sheet.

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

    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

  15. Collisionless current sheet equilibria

    Neukirch, T.; Wilson, F.; Allanson, O.

    2018-01-01

    Current sheets are important for the structure and dynamics of many plasma systems. In space and astrophysical plasmas they play a crucial role in activity processes, for example by facilitating the release of magnetic energy via processes such as magnetic reconnection. In this contribution we will focus on collisionless plasma systems. A sensible first step in any investigation of physical processes involving current sheets is to find appropriate equilibrium solutions. The theory of collisionless plasma equilibria is well established, but over the past few years there has been a renewed interest in finding equilibrium distribution functions for collisionless current sheets with particular properties, for example for cases where the current density is parallel to the magnetic field (force-free current sheets). This interest is due to a combination of scientific curiosity and potential applications to space and astrophysical plasmas. In this paper we will give an overview of some of the recent developments, discuss their potential applications and address a number of open questions.

  16. Cholera Fact Sheet

    ... news-room/fact-sheets/detail/cholera","@context":"http://schema.org","@type":"Article"}; العربية 中文 français русский español ... that includes feedback at the local level and information-sharing at the global level. Cholera cases are ...

  17. Pseudomonas - Fact Sheet

    Public Health Agency

    2012-01-01

    Fact sheet on Pseudomonas, including:What is Pseudomonas?What infections does it cause?Who is susceptible to pseudomonas infection?How will I know if I have pseudomonas infection?How can Pseudomonas be prevented from spreading?How can I protect myself from Pseudomonas?How is Pseudomonas infection treated?

  18. NTPR Fact Sheets

    History Documents US Underground Nuclear Test History Reports NTPR Radiation Exposure Reports Enewetak Atoll Cleanup Documents TRAC About Who We Are Our Values History Locations Our Leadership Director Support Center Contact Us FAQ Sheet Links Success Stories Contracts Business Opportunities Current

  19. Production (information sheets)

    2007-01-01

    Documentation sheets: Geo energy 2 Integrated System Approach Petroleum Production (ISAPP) The value of smartness 4 Reservoir permeability estimation from production data 6 Coupled modeling for reservoir application 8 Toward an integrated near-wellbore model 10 TNO conceptual framework for "E&P

  20. Hibernia fact sheet

    Anon.

    1994-01-01

    This fact sheet gives details of the Hibernia oil field including its location, discovery date, oil company's interests in the project, the recoverable reserves of the two reservoirs, the production system used, capital costs of the project, and overall targets for Canadian benefit. Significant dates for the Hibernia project are listed. (UK)

  1. Ethanol Basics (Fact Sheet)

    2015-01-01

    Ethanol is a widely-used, domestically-produced renewable fuel made from corn and other plant materials. More than 96% of gasoline sold in the United States contains ethanol. Learn more about this alternative fuel in the Ethanol Basics Fact Sheet, produced by the U.S. Department of Energy's Clean Cities program.

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

    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.

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

    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.

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

    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.

  5. The Humboldt Penguin (Spheniscus humboldti) Rete Tibiotarsale - A supreme biological heat exchanger.

    Kazas, Shaked; Benelly, Moran; Golan, Saar

    2017-07-01

    Humans are unable to survive low temperature environments without custom designed clothing and support systems. In contrast, certain penguin species inhabit extremely cold climates without losing substantial energy to self-heating (emperor penguins ambient temperature plummets to as low as -45°C). Penguins accomplish this task by relying on distinct anatomical, physiological and behavioral adaptations. One such adaptation is a blood vessel heat exchanger called the 'Rete Tibiotarsale' - an intermingled network of arteries and veins found in penguins' legs. The Rete existence results in blood occupying the foot expressing a lower average temperature and thus the penguin loosing less heat to the ground. This study examines the Rete significance for the species thermal endurance. The penguin anatomy (leg and main blood vessels) is reconstructed using data chiefly based on the Humboldt species. The resulting model is thermally analyzed using finite element (COMSOL) with the species environment used as boundary conditions. A human-like blood vessel configuration, scaled to the penguin's dimensions, is used as a control for the study. Results indicate that the Rete existence facilitates upkeep of 25-65% of the species total metabolic energy production as compared with the human-like configuration; thus making the Rete probably crucial for penguin thermal endurance. Here, we quantitatively link for the first time the function and structure of this remarkable physiological phenotype. Copyright © 2017 Elsevier Ltd. All rights reserved.

  6. Revisiting Peruvian anchovy ( Engraulis ringens) trophodynamics provides a new vision of the Humboldt Current system

    Espinoza, Pepe; Bertrand, Arnaud

    2008-10-01

    The Peruvian anchovy or anchoveta ( Engraulis ringens) forages on plankton and is a main prey for marine mammals, seabirds, fish, and fishers, and is therefore a key element of the food web in the Humboldt Current system (HCS). Here, we present results from the analysis of 21,203 anchoveta stomach contents sampled during 23 acoustic surveys over the period 1996-2003. Prey items were identified to the genus level, and the relative dietary importance of different prey was assessed by determination of their carbon content. Variability in stomach fullness was examined relative to the diel cycle, the distance from the coast, sea surface temperature, and latitude, using generalized additive models (GAMs). Whereas phytoplankton largely dominated anchoveta diets in terms of numerical abundance and comprised >99% of ingested prey items, the carbon content of prey items indicated that zooplankton was by far the most important dietary component, with euphausiids contributing 67.5% of dietary carbon followed by copepods (26.3%). Stomach fullness data showed that anchoveta feed mainly during daytime between 07h00 and 18h00, although night-time feeding also made a substantial contribution to total food consumption. Stomach fullness also varied with latitude, distance from the coast, and temperature, but with substantial variability indicating a high degree of plasticity in anchoveta feeding behaviour. The results suggest an ecological role for anchoveta that challenges current understanding of its position in the foodweb, the functioning of the HCS, and trophic models of the HCS.

  7. Safstor decommissioning of the Humboldt Bay Power Plant Unit No. 3

    Nelson, R.T.

    1985-01-01

    The Humboldt Bay Power Plant is located near Eureka, California, about 265 miles north of San Francisco. The plant consists of two fossil fueled units, two mobil gas turbine peaking units, and a nuclear unit - Unit No. 3. Unit No. 3, which utilized a boiling water reactor, was constructed between 1960 and 1963. The unit began commercial operation in August 1963 and operated until July 2, 1976 when it was shutdown for refueling, seismic modifications, and additional seismic and geologic studies. During the years Unit 3 operated it had one of the best operating records of any nuclear power plant in the United States. For its operating lifetime Unit 3 had an overall capacity factor of 63.0% and an availability factor of 85.9%. The unit included certain design features which made it unique among nuclear power plants of its era. Some of these unique features included natural circulation recirculation flow which eliminated the need for costly recirculation pumps, utilization of a pressure suppression containment system which had been developed jointly by PG and E and the General Electric Company, and the fact that the reactor vessel and the containment system were constructed in a caisson below ground level. These design features reduced the overall construction cost of the unit and improved its inherent safety

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

    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.

  9. Rubella - Fact Sheet for Parents

    ... and 4 through 6 years Fact Sheet for Parents Color [2 pages] Español: Rubéola The best way ... according to the recommended schedule. Fact Sheets for Parents Diseases and the Vaccines that Prevent Them Chickenpox ...

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

    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

  11. Film sheet cassette

    1981-01-01

    A novel film sheet cassette is described for handling CAT photographic films under daylight conditions and facilitating their imaging. A detailed description of the design and operation of the cassette is given together with appropriate illustrations. The resulting cassette is a low-cost unit which is easily constructed and yet provides a sure light-tight seal for the interior contents of the cassette. The individual resilient fingers on the light-trap permit the ready removal of the slide plate for taking pictures. The stippled, non-electrostatic surface of the pressure plate ensures an air layer and free slidability of the film for removal and withdrawal of the film sheet. The advantage of the daylight system is that a darkroom need not be used for inserting and removing the film in and out of the cassette resulting in a considerable time saving. (U.K.)

  12. Clean Cities Fact Sheet

    2004-01-01

    This fact sheet explains the Clean Cities Program and provides contact information for all coalitions and regional offices. It answers key questions such as: What is the Clean Cities Program? What are alternative fuels? How does the Clean Cities Program work? What sort of assistance does Clean Cities offer? What has Clean Cities accomplished? What is Clean Cities International? and Where can I find more information?

  13. Information sheets on energy

    2004-01-01

    These sheets, presented by the Cea, bring some information, in the energy domain, on the following topics: the world energy demand and the energy policy in France and in Europe, the part of the nuclear power in the energy of the future, the greenhouse gases emissions and the fight against the greenhouse effect, the carbon dioxide storage cost and the hydrogen economy. (A.L.B.)

  14. Biomolecular Science (Fact Sheet)

    2012-04-01

    A brief fact sheet about NREL Photobiology and Biomolecular Science. The research goal of NREL's Biomolecular Science is to enable cost-competitive advanced lignocellulosic biofuels production by understanding the science critical for overcoming biomass recalcitrance and developing new product and product intermediate pathways. NREL's Photobiology focuses on understanding the capture of solar energy in photosynthetic systems and its use in converting carbon dioxide and water directly into hydrogen and advanced biofuels.

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

    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

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

    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

  17. Sheet pinch devices

    Anderson, O.A.; Baker, W.R.; Ise, J. Jr.; Kunkel, W.B.; Pyle, R.V.; Stone, J.M.

    1958-01-01

    Three types of sheet-like discharges are being studied at Berkeley. The first of these, which has been given the name 'Triax', consists of a cylindrical plasma sleeve contained between two coaxial conducting cylinders A theoretical analysis of the stability of the cylindrical sheet plasma predicts the existence of a 'sausage-mode' instability which is, however, expected to grow more slowly than in the case of the unstabilized linear pinch (by the ratio of the radial dimensions). The second pinch device employs a disk shaped discharge with radial current guided between flat metal plates, this configuration being identical to that of the flat hydromagnetic capacitor without external magnetic field. A significant feature of these configurations is the absence of a plasma edge, i.e., there are no regions of sharply curved magnetic field lines anywhere in these discharges. The importance of this fact for stability is not yet fully investigated theoretically. As a third configuration a rectangular, flat pinch tube has been constructed, and the behaviour of a flat plasma sheet with edges is being studied experimentally

  18. Final environmental statement for decommissioning Humboldt Bay Power Plant, Unit No. 3 (Docket No. 50-133)

    1987-04-01

    The Final Environmental Statement contains the assessment of the environmental impact associated with decommissioning the Humboldt Bay Power Plant Unit 3 pursuant to the National Environmental Policy Act of 1969 (NEPA) and Title 10 of the Code of Federal Regulations, Part 51, as amended, of the Nuclear Regulatory Commission regulations. The proposed decommissioning would involve safe storage of the facility for about 30 years, after which the residual radioactivity would be removed so that the facility would be at levels of radioactivity acceptable for release of the facility to unrestricted access

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

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

    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.

  1. Overview of mine drainage geochemistry at historical mines, Humboldt River basin and adjacent mining areas, Nevada. Chapter E.

    Nash, J. Thomas; Stillings, Lisa L.

    2004-01-01

    Reconnaissance hydrogeochemical studies of the Humboldt River basin and adjacent areas of northern Nevada have identified local sources of acidic waters generated by historical mine workings and mine waste. The mine-related acidic waters are rare and generally flow less than a kilometer before being neutralized by natural processes. Where waters have a pH of less than about 3, particularly in the presence of sulfide minerals, the waters take on high to extremely high concentrations of many potentially toxic metals. The processes that create these acidic, metal-rich waters in Nevada are the same as for other parts of the world, but the scale of transport and the fate of metals are much more localized because of the ubiquitous presence of caliche soils. Acid mine drainage is rare in historical mining districts of northern Nevada, and the volume of drainage rarely exceeds about 20 gpm. My findings are in close agreement with those of Price and others (1995) who estimated that less than 0.05 percent of inactive and abandoned mines in Nevada are likely to be a concern for acid mine drainage. Most historical mining districts have no draining mines. Only in two districts (Hilltop and National) does water affected by mining flow into streams of significant size and length (more than 8 km). Water quality in even the worst cases is naturally attenuated to meet water-quality standards within about 1 km of the source. Only a few historical mines release acidic water with elevated metal concentrations to small streams that reach the Humboldt River, and these contaminants and are not detectable in the Humboldt. These reconnaissance studies offer encouraging evidence that abandoned mines in Nevada create only minimal and local water-quality problems. Natural attenuation processes are sufficient to compensate for these relatively small sources of contamination. These results may provide useful analogs for future mining in the Humboldt River basin, but attention must be given to

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

    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.

  3. Contrasting biogeochemical responses of ENSO induced upwelling variability in the Humboldt Current System

    Franco, Ana C.; Gruber, Nicolas; Münnich, Matthias

    2017-04-01

    The Humboldt Current System (HCS) is one of the most productive ecosystems in the world. This high productivity is supported by a large input of nutrients from the subsurface layers to the surface due to year-round upwelling. However, upwelling also supplies waters with low pH and low aragonite saturation state potentially affecting many organisms, especially those that calcify. The influence, extent and source of upwelled water vary substantially on interannual timescales in association with the El Niño/Southern Oscillation (ENSO) phenomenon, generating natural contrasting responses on the biogeochemistry of this system. Here we analyze these responses using an eddy resolving, basin-scale ocean model that covers the whole Pacific Ocean with high resolution (4 km) on the west coast of South America. We performed a simulation of the last 30 years (hindcast simulation) that allows us to investigate the influence of at least eight El Niño episodes and eight La Niña episodes on productivity variations and changes in oxygen concentration and aragonite saturation state. An absolute change in surface omega aragonite of almost 2 units, as well as an absolute change of the aragonite saturation depth of 200 m result from the change of an El Niño phase to a La Niña phase. This variability is on the same order of magnitude as the projected change in the aragonite saturation state in a centennial timescale. During La Niña events, a lower aragonite saturation state values and reduced oxygen concentration in the surface layer are a direct consequence of enhanced upwelling and increased net primary productivity. The opposite is true during El Niño events, where high values of omega aragonite occur in concordance with extraordinarily low net primary productivity values.

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

    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.

  5. Spatial and temporal variability of planktonic archaeal abundance in the Humboldt Current System off Chile

    Quiñones, Renato A.; Levipan, Héctor A.; Urrutia, Homero

    2009-07-01

    The latest advances in the field of microbial ecology have shown that planktonic Archaea are one of the most abundant unicellular microorganisms of the oceans. However, no information is available on the contribution this group makes to the prokaryote assemblages that inhabit the eastern South Pacific Ocean. Here, we describe the relative abundance and vertical distribution of planktonic Archaea off northern and central-southern Chile. Data come from several cruises and a 45-month time series at a station located on the shelf off central-southern Chile. Both the taxonomic composition of the prokaryote community and its relative abundance were determined using quantitative dot blot 16S-rRNA hybridizations. Total Archaea in central-southern Chile made up 6-87% of the prokaryote rRNA in the water column and did not present evidence of any seasonal pattern. Crenarchaea were the most abundant archaeal group at this site and were significantly associated with the ammonium concentration ( r2=0.16, p=0.0003, n=80). Archaeal abundance in the time series was usually greater in the deeper layer (>50 m), with contributions reaching up to ˜90% of the prokaryote rRNA on certain occasions, and decreasing towards the surface. Important increments in the relative abundance of total Archaea were observed on given dates at the surface of the time-series station off central-southern Chile. Off northern Chile, total Archaea normally contributed from ˜10% to 50% of the prokaryote rRNA found between 10 and 1000 m, and were generally important in the mesopelagic realm. Our results indicate that Archaea constitute an important fraction of the prokaryote assemblage in the water column of the Humboldt Current System, especially in the oxygen minimum zone.

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

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

    2017-11-01

    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. Allegheny County Obesity Rates

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Obesity rates for each Census Tract in Allegheny County were produced for the study “Developing small-area predictions for smoking and obesity prevalence in the...

  8. Allegheny County Dam Locations

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset shows the point locations of dams in Allegheny County. If viewing this description on the Western Pennsylvania Regional Data Center’s open data portal...

  9. Allegheny County Asbestos Permits

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Current asbestos permit data issued by the County for commercial building demolitions and renovations as required by the EPA. This file is updated daily and can be...

  10. Allegheny County Crash Data

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Contains locations and information about every crash incident reported to the police in Allegheny County from 2004 to 2016. Fields include injury severity,...

  11. Allegheny County Anxiety Medication

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — These Census Tract-level datasets described here provide de-identified diagnosis data for customers of three managed care organizations in Allegheny County (Gateway...

  12. Allegheny County Smoking Rates

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Smoking rates for each Census Tract in Allegheny County were produced for the study “Developing small-area predictions for smoking and obesity prevalence in the...

  13. Allegheny County Employee Salaries

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Employee salaries are a regular Right to Know request the County receives. Here is the disclaimer language that is included with the dataset from the Open Records...

  14. ROE County Data

    U.S. Environmental Protection Agency — This polygon dataset shows the outlines of states, counties, and county equivalents (Louisiana parishes, Alaska boroughs, Puerto Rico municipalities, and U.S. Virgin...

  15. Allegheny County Parcel Boundaries

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains parcel boundaries attributed with county block and lot number. Use the Property Information Extractor for more control downloading a filtered...

  16. Allegheny County Tobacco Vendors

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — The tobacco vendor information provides the location of all tobacco vendors in Allegheny County in 2015. Data was compiled from administrative records managed by...

  17. Allegheny County Plumbers

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — All master plumbers must be registered with the Allegheny County Health Department. Only Registered Master Plumbers who possess a current plumbing license or...

  18. Allegheny County Traffic Counts

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Traffic sensors at over 1,200 locations in Allegheny County collect vehicle counts for the Pennsylvania Department of Transportation. Data included in the Health...

  19. Allegheny County Greenways

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Greenways data was compiled by the Allegheny Land Trust as a planning effort in the development of Allegheny Places, the Allegheny County Comprehensive Plan. The...

  20. Allegheny County Street Centerlines

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains the locations of the street centerlines for vehicular and foot traffic in Allegheny County. Street Centerlines are classified as Primary Road,...

  1. Allegheny County Major Rivers

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains locations of major rivers that flow through Allegheny County. These shapes have been taken from the Hydrology dataset. The Ohio River,...

  2. Allegheny County Depression Medication

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — These Census Tract-level datasets described here provide de-identified diagnosis data for customers of three managed care organizations in Allegheny County (Gateway...

  3. Taos County Roads

    Earth Data Analysis Center, University of New Mexico — Vector line shapefile under the stewardship of the Taos County Planning Department depicting roads in Taos County, New Mexico. Originally under the Emergency...

  4. Allegheny County Property Assessments

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Real Property parcel characteristics for Allegheny County, PA. Includes information pertaining to land, values, sales, abatements, and building characteristics (if...

  5. Allegheny County Hospitals

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — The data on health care facilities includes the name and location of all the hospitals and primary care facilities in Allegheny County. The current listing of...

  6. Allegheny County Parks Outlines

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Shows the size and shape of the nine Allegheny County parks. If viewing this description on the Western Pennsylvania Regional Data Center’s open data portal...

  7. Allegheny County Crash Data

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Contains locations and information about every crash incident reported to the police in Allegheny County from 2004 to 2017. Fields include injury severity,...

  8. Allegheny County Property Viewer

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Webmap of Allegheny municipalities and parcel data. Zoom for a clickable parcel map with owner name, property photograph, and link to the County Real Estate website...

  9. County Population Vulnerability

    City and County of Durham, North Carolina — This layer summarizes the social vulnerability index for populations within each county in the United States at scales 1:3m and below. It answers the question...

  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

    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. Dense sheet Z-pinches

    Tetsu, Miyamoto

    1999-01-01

    The steady state and quasi-steady processes of infinite- and finite-width sheet z-pinches are studied. The relations corresponding to the Bennett relation and Pease-Braginskii current of cylindrical fiber z-pinches depend on a geometrical factor in the sheet z-pinches. The finite-width sheet z-pinch is approximated by a segment of infinite-width sheet z-pinch, if it is wide enough, and corresponds to a number of (width/thickness) times fiber z-pinch plasmas of the diameter that equals the sheet thickness. If the sheet current equals this number times the fiber current, the plasma created in the sheet z-pinches is as dense as in the fiber z-pinches. The total energy of plasma and magnetic field per unit mass is approximately equal in both pinches. Quasi-static transient processes are different in several aspects from the fiber z-pinch. No radiation collapse occurs in the sheet z-pinch. The stability is improved in the sheet z-pinches. The fusion criterions and the experimental arrangements to produce the sheet z-pinches are also discussed. (author)

  12. Perforation of metal sheets

    Steenstrup, Jens Erik

    simulation is focused on the sheet deformation. However, the effect on the tool and press is included. The process model is based on the upper bound analysis in order to predict the force progress and hole characteristics etc. Parameter analyses are divided into two groups, simulation and experimental tests......The main purposes of this project are:1. Development of a dynamic model for the piercing and performation process2. Analyses of the main parameters3. Establishing demands for process improvements4. Expansion of the existing parameter limitsThe literature survey describes the process influence...

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

    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.

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

    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. Behaviour of wintering Tundra Swans Cygnus columbianus columbianus at the Eel River delta and Humboldt Bay, California, USA

    Black, Jeffrey M.; Gress, Carol; Byers, Jacob W.; Jennings, Emily; Ely, Craig R.

    2010-01-01

    Tundra Swan Cygnus columbianus columbinanus phenology and behaviour at the Eel River delta and southern Humboldt Bay in northern California, USA, is described. Counts made each January from 1963 onwards peaked at 1,502 swans in 1988. Monthly counts recorded during the 2006/07 and 2008/09 winters peaked in February, at 1,033 and 772 swans respectively. Swans roosted on ephemeral ponds at the Humboldt Bay National Wildlife Refuge, on ephemeral ponds within grassland pastures in the vicinity of the Refuge, and perhaps also used the Eel River as a roost. Flights between Refuge roosts and the pastures and ponds occurred in the two hours after sunrise and before dark. In winters 2008/09 and 2009/10, the percentage of cygnets in the flocks was 10.6% and 21.4% respectively, and increased to =31% cygnets each year after most swans had departed from the area in March. Average brood size in 2009/10 was 2.1 cygnets. Daily activities consisted of foraging (44.9% of activities recorded), comfort behaviour (22.1%), locomotion (16.2%) and vigilance (15.5%). Eight neck-collared swans identified in the wintering flock were marked at four locations in different parts of Alaska, up to 1,300 km apart.

  16. Mismatch Between Interseismic Ground Deformation and Paleoseismic/Paleogeodetic Observations, Humboldt Bay, Northern California, Cascadia Subduction Zone

    Patton, J. R.; Williams, T. B.; Leroy, T. H.; Anderson, J. K.; Weldon, R. J.; Gilkerson, W.

    2011-12-01

    Observations made by Plafker in Chile (1960) and Alaska (1964) show that vertical deformation during earthquakes is generally opposite in sense of motion compared to interseismic deformation. This elastic rebound theory drives estimates of potential coseismic deformation on the Cascadia subduction zone (CSZ). Similar to other coastal marshes along the CSZ, paleoseismic investigations around Humboldt Bay reveal evidence of coseismic subsidence for the past 4 ka. Tide gage data obtained from NOAA tide gages, as well as 'campaign' style tide gages, are used to infer interseismic ground deformation. Tide gage data from Crescent City and Humboldt Bay are compared to each other and also compared to estimates of eustatic sea-level rise to estimate rates of land-level change. Earthscope and USGS GPS permanent site data are also used to evaluate vertical interseismic deformation in this region. These rates of land-level change are then compared to paleoseismic proxies for vertical land-level change. Cores collected for master's theses research at Humboldt State University were used to compile an earthquake history for the Humboldt Bay region. Some cores in Mad River and Hookton sloughs were used to evaluate magnitudes of coseismic subsidence by comparing diatom and foraminiferid assemblages associated with lithologic contacts (paleogeodesy). Minimum estimates of paleosubsidence for earthquakes range from 0.3 to 2.6 meters. Subtracting eustatic sea-level rise (~2.3 mm/yr, 1977-2010) from Crescent City (CC) and North Spit (NS) relative sea-level rates reveals that CC is uplifting at ~3mm/yr and NS is subsiding at ~2.5 mm/yr. GPS vertical deformation reveals similar rates of ~3 mm/yr of uplift and ~2 mm/yr of subsidence in these two locations. GPS based subsidence rates show a gradient of subsidence between Trinidad (in the north) to Cape Mendocino (in the south). The spatial region of ongoing subsidence reveals the depth of locking of the CSZ fault (differently from previous

  17. Experiments on sheet metal shearing

    Gustafsson, Emil

    2013-01-01

    Within the sheet metal industry, different shear cutting technologies are commonly used in several processing steps, e.g. in cut to length lines, slitting lines, end cropping etc. Shearing has speed and cost advantages over competing cutting methods like laser and plasma cutting, but involves large forces on the equipment and large strains in the sheet material.Numerical models to predict forces and sheared edge geometry for different sheet metal grades and different shear parameter set-ups a...

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

    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.

  19. Euphausia mucronata: A keystone herbivore and prey of the Humboldt Current System

    Antezana, Tarsicio

    2010-04-01

    Euphausiids are important components of many ecosystems, especially in productive regions of temperate and high latitudes. The present paper makes the case that E. mucronata plays a keystone role in the food web of the Humboldt Current System (HCS) based on a synthesis of new and published data supporting its potential role as a primary grazer, as well as a principal prey for upper trophic level fish. E. mucronata is an endemic species, concentrated in the coastal upwelling belt of the HCS, with morpho-physiological adaptations to vertically migrate into the Oxygen Minimum Zone (OMZ). Within the 100-km coastal belt of the HCS it accounts for ca. 50% of the meso zooplankton wet weight in winter. In the mixed layer, it is a herbivore with high night ingestion rates (612.2 ng Chl eq ind -1 h -1 or 1013.9 μg C ind -1 d -1, in winter), and accounted for a 19.3% impact on primary production in winter, at an intermediate population abundance (3.8 ind m -3). At higher abundances (50 ind m -3) equivalent to swarms, impact on primary production could reach 254%. Additionally E. mucronata is a common prey of numerous upper trophic level predators. The diet of jack mackerel ( Trachurus murphyi) off central Chile (34-39°S) indicates a striking dependence on E. mucronata prey (average of 75% of stomach content in weight). The fishing season off central Chile extended from austral fall (March-April) and continued at least until the end of austral winter (September). The average daily ration of jack mackerel was 17.4 g, which is equivalent to 2.3% of fish body weight per day. The total E. mucronata consumed in 1991 by the landed population of fish (3.7 million tons yr -1) amounted to 23.2 million tons yr -1. The total estimated population of jack mackerel that year (17.6 million tons) would have consumed ca. 110.2 million tons of E. mucronata. Based on stomach contents, consumption of E. mucronata by other nektonic predators off Chile and off Peru is also outstanding. Four

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

    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

  1. 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

    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.

  2. Soft Costs Fact Sheet

    None

    2016-05-01

    This fact sheet is an overview of the systems integration subprogram at the U.S. Department of Energy SunShot Initiative. Soft costs can vary significantly as a result of a fragmented energy marketplace. In the U.S., there are 18,000 jurisdictions and 3,000 utilities with different rules and regulations for how to go solar. The same solar equipment may vary widely in its final installation price due to process and market variations across jurisdictions, creating barriers to rapid industry growth. SunShot supports the development of innovative solutions that enable communities to build their local economies and establish clean energy initiatives that meet their needs, while at the same time creating sustainable solar market conditions.

  3. Photovoltaics Fact Sheet

    None

    2016-02-01

    This fact sheet is an overview of the Photovoltaics (PV) subprogram at the U.S. Department of Energy SunShot Initiative. The U.S. Department of Energy (DOE)’s Solar Energy Technologies Office works with industry, academia, national laboratories, and other government agencies to advance solar PV, which is the direct conversion of sunlight into electricity by a semiconductor, in support of the goals of the SunShot Initiative. SunShot supports research and development to aggressively advance PV technology by improving efficiency and reliability and lowering manufacturing costs. SunShot’s PV portfolio spans work from early-stage solar cell research through technology commercialization, including work on materials, processes, and device structure and characterization techniques.

  4. Systems Integration Fact Sheet

    None

    2016-06-01

    This fact sheet is an overview of the Systems Integration subprogram at the U.S. Department of Energy SunShot Initiative. The Systems Integration subprogram enables the widespread deployment of safe, reliable, and cost-effective solar energy technologies by addressing the associated technical and non-technical challenges. These include timely and cost-effective interconnection procedures, optimal system planning, accurate prediction of solar resources, monitoring and control of solar power, maintaining grid reliability and stability, and many more. To address the challenges associated with interconnecting and integrating hundreds of gigawatts of solar power onto the electricity grid, the Systems Integration program funds research, development, and demonstration projects in four broad, interrelated focus areas: grid performance and reliability, dispatchability, power electronics, and communications.

  5. Hyperspectral light sheet microscopy

    Jahr, Wiebke; Schmid, Benjamin; Schmied, Christopher; Fahrbach, Florian O.; Huisken, Jan

    2015-09-01

    To study the development and interactions of cells and tissues, multiple fluorescent markers need to be imaged efficiently in a single living organism. Instead of acquiring individual colours sequentially with filters, we created a platform based on line-scanning light sheet microscopy to record the entire spectrum for each pixel in a three-dimensional volume. We evaluated data sets with varying spectral sampling and determined the optimal channel width to be around 5 nm. With the help of these data sets, we show that our setup outperforms filter-based approaches with regard to image quality and discrimination of fluorophores. By spectral unmixing we resolved overlapping fluorophores with up to nanometre resolution and removed autofluorescence in zebrafish and fruit fly embryos.

  6. Settlement during vibratory sheet piling

    Meijers, P.

    2007-01-01

    During vibratory sheet piling quite often the soil near the sheet pile wall will settle. In many cases this is not a problem. For situations with houses, pipelines, roads or railroads at relative short distance these settlements may not be acceptable. The purpose of the research described in this

  7. Plasma dynamics in current sheets

    Bogdanov, S.Yu.; Drejden, G.V.; Kirij, N.P.; AN SSSR, Leningrad

    1992-01-01

    Plasma dynamics in successive stages of current sheet evolution is investigated on the base of analysis of time-spatial variations of electron density and electrodynamic force fields. Current sheet formation is realized in a two-dimensional magnetic field with zero line under the action of relatively small initial disturbances (linear regimes). It is established that in the limits of the formed sheet is concentrated dense (N e ∼= 10 16 cm -3 ) (T i ≥ 100 eV, bar-Z i ≥ 2) hot pressure of which is balanced by the magnetic action of electrodynamic forces is carried out both plasma compression in the sheet limits and the acceleration along the sheet surface from a middle to narrow side edges

  8. Temperature profiles from MBT casts from the HUMBOLDT from Ocean Weather Station D (OWS-D) in the North Atlantic Ocean from 1962-07-13 to 1962-08-05 (NODC Accession 6200130)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathythermograph data were collected from the HUMBOLDT within a 1-mile radius of Ocean Weather Station D (4400N 04100W) and in transit. Data were collected by the...

  9. Temperature profiles from MBT casts from the HUMBOLDT from Ocean Weather Station B (OWS-B) in the North Atlantic Ocean from 1968-07-21 to 1968-08-12 (NODC Accession 6800388)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathythermograph 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 the...

  10. Temperature profiles from MBT casts from the HUMBOLDT from Ocean Weather Station E (OWS-E) in the North Atlantic Ocean from 1962-09-18 to 1962-10-13 (NODC Accession 6200206)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathythermograph data were collected from the HUMBOLDT within a 1-mile radius of Ocean Weather Station E (3500N 04800W) and in transit. Data were collected by the...

  11. Temperature profiles from MBT casts from the HUMBOLDT from Ocean Weather Station C (OWS-C) in the North Atlantic Ocean from 1963-05-26 to 1963-06-24 (NODC Accession 6300123)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathythermograph data were collected from the HUMBOLDT within a 1-mile radius of Ocean Weather Station C (5245N 0350W) and in transit. Data were collected by the...

  12. Temperature profiles from MBT casts from the HUMBOLDT from Ocean Weather Station B (OWS-B) in the North Atlantic Ocean from 1966-03-17 to 1966-04-01 (NODC Accession 6600372)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathythermograph data were collected from the HUMBOLDT within a 1-mile radius of Ocean Weather Station B (56305N 05100W) and in transit. Data were collected by the...

  13. Temperature profiles from MBT casts from the HUMBOLDT from Ocean Weather Station D (OWS-D) in the North Atlantic Ocean from 1966-05-28 to 1966-06-24 (NODC Accession 6600371)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathythermograph data were collected from the HUMBOLDT within a 1-mile radius of Ocean Weather Station D (4400N 04100W) and in transit. Data were collected by the...

  14. 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)

    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...

  15. Vitamin and Mineral Supplement Fact Sheets

    ... website Submit Search NIH Office of Dietary Supplements Vitamin and Mineral Supplement Fact Sheets Search the list ... Supplements: Background Information Botanical Dietary Supplements: Background Information Vitamin and Mineral Fact Sheets Botanical Supplement Fact Sheets ...

  16. VT Boundaries - county polygons

    Vermont Center for Geographic Information — (Link to Metadata) The BNDHASH dataset depicts Vermont villages, towns, counties, Regional Planning Commissions (RPC), and LEPC (Local Emergency Planning Committee)...

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

    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.)

  18. De la biogeografía al paisaje en Humboldt: pisos de vegetación y paisajes andinos equinocciales

    Concepción Sanz Herráiz

    2010-03-01

    Full Text Available The current recovery of the notion of landscape as a means of comprehending the relationships between nature, society and culture in their spatiotemporal dimensions, that is, as specifi c totalities, calls for a return to its most fecund presentations, beginning with what is perhaps the most outstanding version of them all, that of Alexander von Humboldt. On this occasion we intend to make a reading in terms of landscape of Essay on the Geography of Plants and of the accompanying Physical Tableau, the one of humboldtian works less known. We believe that our study will demonstrate that Humboldt’s contribution on landscape and landscapes was to a great extent contained in the initial text of Geography of Plants; which in turn enables us to explore the fundamental relationship between landscape and the initial development of Biogeography.

  19. Influence of thermal discharges on the distribution of macroflora and fauna. Humboldt Bay Nuclear Power Plant, California

    Adams, J.R.

    1975-01-01

    Populations of benthic and epifaunal macro-organisms living in the area influenced by the thermal discharge of the steam-electric power plant at Humboldt Bay, California, were analyzed in 1971 and 1972 to determine if differences in distribution could be attributed to the effluent. Relicated benthic samples were collected with a Ponar grab at 20 stations in the bay and at 4 stations in the canals leading to and from the power plant. Comparisons of epifaunal plants and animals in a rocky intertidal zone were made at 13 permanent transects spaced at various distances on either side of the discharge. Species richness in the intertidal was positively correlated with increased temperature in 13 percent of the possible combinations of tide level and diversity. Individual species were positively correlated with increased temperatures for 19 percent of the plant comparisons, and for 16.3 percent of the animal comparisons. Comparisons of populations of individual species in the heated intertidal zone with those in a control zone indicated differences in 26.2 percent of the plant surveys, and 23.2 percent of the animal surveys. Differences were positively related to the increased temperature in 90.5 percent of the comparisons. Proportions of eurythermal plants or animals in the heated areas of the intertidal zone did not differ significantly from proportions in other areas in 4 different survey periods. With the possible exception of one species, there was no conclusive evidence that any of the 132 species found in the intertidal area at Humboldt Bay was eliminated from the heated area surrounding the discharge of the power plant

  20. Genomic features of "Candidatus Venteria ishoeyi", a new sulfur-oxidizing macrobacterium from the Humboldt Sulfuretum off Chile.

    Alexis Fonseca

    Full Text Available The Humboldt Sulfuretum (HS, in the productive Humboldt Eastern Boundary Current Upwelling Ecosystem, extends under the hypoxic waters of the Peru-Chile Undercurrent (ca. 6°S and ca. 36°S. Studies show that primeval sulfuretums held diverse prokaryotic life, and, while rare today, still sustain species-rich giant sulfur-oxidizing bacterial communities. We here present the genomic features of a new bacteria of the HS, "Candidatus Venteria ishoeyi" ("Ca. V. ishoeyi" in the family Thiotrichaceae.Three identical filaments were micro-manipulated from reduced sediments collected off central Chile; their DNA was extracted, amplified, and sequenced by a Roche 454 GS FLX platform. Using three sequenced libraries and through de novo genome assembly, a draft genome of 5.7 Mbp, 495 scaffolds, and a N50 of 70 kbp, was obtained. The 16S rRNA gene phylogenetic analysis showed that "Ca. V. ishoeyi" is related to non-vacuolate forms presently known as Beggiatoa or Beggiatoa-like forms. The complete set of genes involved in respiratory nitrate-reduction to dinitrogen was identified in "Ca. V. ishoeyi"; including genes likely leading to ammonification. As expected, the sulfur-oxidation pathway reported for other sulfur-oxidizing bacteria were deduced and also, key inorganic and organic carbon acquisition related genes were identified. Unexpectedly, the genome of "Ca. V. ishoeyi" contained numerous CRISPR repeats and an I-F CRISPR-Cas type system gene coding array. Findings further show that, as a member of an eons-old marine ecosystem, "Ca. V. ishoeyi" contains the needed metabolic plasticity for life in an increasingly oxygenated and variable ocean.

  1. Selectively reflective transparent sheets

    Waché, Rémi; Florescu, Marian; Sweeney, Stephen J.; Clowes, Steven K.

    2015-08-01

    We investigate the possibility to selectively reflect certain wavelengths while maintaining the optical properties on other spectral ranges. This is of particular interest for transparent materials, which for specific applications may require high reflectivity at pre-determined frequencies. Although there exist currently techniques such as coatings to produce selective reflection, this work focuses on new approaches for mass production of polyethylene sheets which incorporate either additives or surface patterning for selective reflection between 8 to 13 μ m. Typical additives used to produce a greenhouse effect in plastics include particles such as clays, silica or hydroxide materials. However, the absorption of thermal radiation is less efficient than the decrease of emissivity as it can be compared with the inclusion of Lambertian materials. Photonic band gap engineering by the periodic structuring of metamaterials is known in nature for producing the vivid bright colors in certain organisms via strong wavelength-selective reflection. Research to artificially engineer such structures has mainly focused on wavelengths in the visible and near infrared. However few studies to date have been carried out to investigate the properties of metastructures in the mid infrared range even though the patterning of microstructure is easier to achieve. We present preliminary results on the diffuse reflectivity using FDTD simulations and analyze the technical feasibility of these approaches.

  2. Superfund fact sheet: The remedial program. Fact sheet

    1992-09-01

    The fact sheet describes what various actions the EPA can take to clean up hazardous wastes sites. Explanations of how the criteria for environmental and public health risk assessment are determined and the role of state and local governments in site remediation are given. The fact sheet is one in a series providing reference information about Superfund issues and is intended for readers with no formal scientific training

  3. Allegheny County Blazed Trails Locations

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Shows the location of blazed trails in all Allegheny County parks. This is the same data used in the Allegheny County Parks Trails Mobile App, available for Apple...

  4. Allegheny County Supermarkets & Convenience Stores

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Location information for all Supermarkets and Convenience Stores in Allegheny County was produced using the Allegheny County Fee and Permit Data for 2016.

  5. Allegheny County Watershed Boundaries

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset demarcates the 52 isolated sub-Watersheds of Allegheny County that drain to single point on the main stem rivers. Created by 3 Rivers 2nd Nature based...

  6. Allegheny County Block Areas

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset overlays a grid on the County to assist in locating a parcel. The grid squares are 3,500 by 4,500 square feet. The data was derived from original...

  7. LANDSLIDES IN SUCEAVA COUNTY

    Dan Zarojanu

    2017-07-01

    Full Text Available In the county of Suceava, the landslides are a real and permanent problem. This paper presents the observations of landslides over the last 30 years in Suceava County, especially their morphology, theirs causes and the landslide stopping measures. It presents also several details regarding the lanslides from the town of Suceava, of Frasin and the village of Brodina.

  8. 2012 Swimming Season Fact Sheets

    To help beachgoers make informed decisions about swimming at U.S. beaches, EPA annually publishes state-by-state data about beach closings and advisories for the previous year's swimming season. These fact sheets summarize that information by state.

  9. State Fact Sheets on COPD

    ... Submit Search The CDC Chronic Obstructive Pulmonary Disease (COPD) Note: Javascript is disabled or is not supported ... message, please visit this page: About CDC.gov . COPD Homepage Data and Statistics Fact Sheets Publications Publications ...

  10. Australian Government Balance Sheet Management

    Wilson Au-Yeung; Jason McDonald; Amanda Sayegh

    2006-01-01

    Since almost eliminating net debt, the Australian Government%u2019s attention has turned to the financing of broader balance sheet liabilities, such as public sector superannuation. Australia will be developing a significant financial asset portfolio in the %u2018Future Fund%u2019 to smooth the financing of expenses through time. This raises the significant policy question of how best to manage the government balance sheet to reduce risk. This paper provides a framework for optimal balance sh...

  11. Energy information sheets, July 1998

    NONE

    1998-07-01

    The National Energy Information Center (NEIC), as part of its mission, provides energy information and referral assistance to Federal, State, and local governments, the academic community, business and industrial organizations, and the public. The Energy Information Sheets was developed to provide general information on various aspects of fuel production, prices, consumption, and capability. Additional information on related subject matter can be found in other Energy Information Administration (EIA) publications as referenced at the end of each sheet.

  12. Energy information sheets, September 1996

    NONE

    1996-09-01

    The National Energy Information Center (NEIC), as part of its mission, provides energy information and referral assistance to Federal, State, and local governments, the academic community, business and industrial organizations, and the public. The Energy Information Sheets was developed to provide general information on various aspects of fuel production, prices, consumption, and capability. Additional information on related subject matter can be found in other Energy Information Administration (EIA) publications as referenced at the end of each sheet.

  13. Effects of November 8, 1980 earthquake on Humboldt Bay Power Plant and Eureka, California area. Reconnaissance report 13 Nov-14 Nov 80

    Herring, K.S.; Rooney, V.; Chokshi, N.C.

    1981-06-01

    On November 8, 1980, an earthquake of a reported surface wave magnitude of 7.0 occurred off the coast of California, west of Eureka and the Humboldt Bay Power Plant. Three NRC staff members visited the site the following week to survey any damage associated with the earthquake, with the objective of using collected data to assist the NRR staff in ongoing seismic evaluations of older operating nuclear power plant facilities. This report contains their observations. They concluded that the effects of the earthquake on Humboldt Bay Power Plant Unit 3 were minimal and did not endanger the health and safety of the public. They recommended that improvements be made to seismic recording equipment and that generic preparation for future post-earthquake reconnaissance trips be made before the actual occurrence of earthquakes

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

    Mary Orr

    2010-01-01

    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 ...

  15. FDTD modeling of thin impedance sheets

    Luebbers, Raymond J.; Kunz, Karl S.

    1991-01-01

    Thin sheets of resistive or dielectric material are commonly encountered in radar cross section calculations. Analysis of such sheets is simplified by using sheet impedances. In this paper it is shown that sheet impedances can be modeled easily and accurately using Finite Difference Time Domain (FDTD) methods.

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

    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. Comparison of NOAA lidar data at 1.5 and 3 meter resolutions, for adequate watershed delineation in Tift County, Georgia, USA

    The USDA Southeast Watershed Research Laboratory is located in Tifton, Ga, and performs ongoing watershed research for the Tift County area, as well as surrounding counties. Current watershed delineations are based on 1972-1977, 7.5-minute USGS Quadrangle sheets, and require updating. Light Detectio...

  18. On Jovian plasma sheet structure

    Khurana, K.K.; Kivelson, M.G.

    1989-01-01

    The authors evaluate several models of Jovian plasma sheet structure by determining how well they organize several aspects of the observed Voyager 2 magnetic field characteristics as a function of Jovicentric radial distance. It is shown that in the local time sector of the Voyager 2 outbound pass (near 0300 LT) the published hinged-magnetodisc models with wave (i.e., models corrected for finite wave velocity effects) are more successful than the published magnetic anomaly model in predicting locations of current sheet crossings. They also consider the boundary between the plasma sheet and the magnetotail lobe which is expected to vary slowly with radial distance. They use this boundary location as a further test of the models of the magnetotail. They show that the compressional MHD waves have much smaller amplitude in the lobes than in the plasma sheet and use this criterion to refine the identification of the plasma-sheet-lobe boundary. When the locations of crossings into and out of the lobes are examined, it becomes evident that the magnetic-anomaly model yields a flaring plasma sheet with a halfwidth of ∼ 3 R J at a radial distance of 20 R J and ∼ 12 R J at a radial distance of 100 R J . The hinged-magnetodisc models with wave, on the other hand, predict a halfwidth of ∼ 3.5 R J independent of distance beyond 20 R J . New optimized versions of the two models locate both the current sheet crossings and lobe encounters equally successfully. The optimized hinged-magnetodisc model suggests that the wave velocity decreases with increasing radial distance. The optimized magnetic anomaly model yields lower velocity contrast than the model of Vasyliunas and Dessler (1981)

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

    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

  20. Automobile sheet metal part production with incremental sheet forming

    İsmail DURGUN

    2016-02-01

    Full Text Available Nowadays, effect of global warming is increasing drastically so it leads to increased interest on energy efficiency and sustainable production methods. As a result of adverse conditions, national and international project platforms, OEMs (Original Equipment Manufacturers, SMEs (Small and Mid-size Manufacturers perform many studies or improve existing methodologies in scope of advanced manufacturing techniques. In this study, advanced manufacturing and sustainable production method "Incremental Sheet Metal Forming (ISF" was used for sheet metal forming process. A vehicle fender was manufactured with or without die by using different toolpath strategies and die sets. At the end of the study, Results have been investigated under the influence of method and parameters used.Keywords: Template incremental sheet metal, Metal forming

  1. Uranium mining sites - Thematic sheets

    2009-01-01

    A first sheet proposes comments, data and key numbers about uranium extraction in France: general overview of uranium mining sites, status of waste rock and tailings after exploitation, site rehabilitation. The second sheet addresses the sources of exposure to ionizing radiations due to ancient uranium mining sites: discussion on the identification of these sources associated with these sites, properly due to mining activities or to tailings, or due to the transfer of radioactive substances towards water and to the contamination of sediments, description of the practice and assessment of radiological control of mining sites. A third sheet addresses the radiological exposure of public to waste rocks, and the dose assessment according to exposure scenarios: main exposure ways to be considered, studied exposure scenarios (passage on backfilled path and grounds, stay in buildings built on waste rocks, keeping mineralogical samples at home). The fourth sheet addresses research programmes of the IRSN on uranium and radon: epidemiological studies (performed on mine workers; on French and on European cohorts, French and European studies on the risk of lung cancer associated with radon in housing), study of the biological effects of chronic exposures. The last sheet addresses studies and expertises performed by the IRSN on ancient uranium mining sites in France: studies commissioned by public authorities, radioactivity control studies performed by the IRSN about mining sites, participation of the IRSN to actions to promote openness to civil society

  2. Allegheny County Hydrology Areas

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — The Hydrology Feature Dataset contains photogrammetrically compiled water drainage features and structures including rivers, streams, drainage canals, locks, dams,...

  3. Allegheny County Walk Scores

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Walk Score measures the walkability of any address using a patented system developed by the Walk Score company. For each 2010 Census Tract centroid, Walk Score...

  4. Allegheny County Sheriff Sales

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — List of properties up for auction at a Sheriff Sale. Datasets labeled "Current" contain this month's postings, while those labeled "Archive" contain a running list...

  5. Allegheny County Older Housing

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Older housing can impact the quality of the occupant's health in a number of ways, including lead exposure, housing quality, and factors that may exacerbate...

  6. Allegheny County Dog Licenses

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — A list of dog license dates, dog breeds, and dog name by zip code. Currently this dataset does not include City of Pittsburgh dogs.

  7. Allegheny County Housing Tenure

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Home ownership provides a number of financial, social, and health benefits to American families. Especially in areas with housing price appreciation, home ownership...

  8. Allegheny County Hydrology Lines

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — The Hydrology Feature Dataset contains photogrammetrically compiled water drainage features and structures including rivers, streams, drainage canals, locks, dams,...

  9. Durham County Demographic Profile

    City and County of Durham, North Carolina — (a) Includes persons reporting only one race.(b) Hispanics may be of any race, so also are included in applicable race categories. D: Suppressed to avoid disclosure...

  10. Allegheny County Vacant Properties

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Mail carriers routinely collect data on address no longer receiving mail due to vacancy. This vacancy data is reported quarterly at census tract geographies in the...

  11. Root-growth-inhibiting sheet

    Burton, F.G.; Cataldo, D.A.; Cline, J.F.; Skiens, W.E.; Van Voris, P.

    1993-01-26

    In accordance with this invention, a porous sheet material is provided at intervals with bodies of a polymer which contain a 2,6-dinitroaniline. The sheet material is made porous to permit free passage of water. It may be either a perforated sheet or a woven or non-woven textile material. A particularly desirable embodiment is a non-woven fabric of non-biodegradable material. This type of material is known as a geotextile'' and is used for weed control, prevention of erosion on slopes, and other landscaping purposes. In order to obtain a root repelling property, a dinitroaniline is blended with a polymer which is attached to the geotextile or other porous material.

  12. Optimal swimming of a sheet.

    Montenegro-Johnson, Thomas D; Lauga, Eric

    2014-06-01

    Propulsion at microscopic scales is often achieved through propagating traveling waves along hairlike organelles called flagella. Taylor's two-dimensional swimming sheet model is frequently used to provide insight into problems of flagellar propulsion. We derive numerically the large-amplitude wave form of the two-dimensional swimming sheet that yields optimum hydrodynamic efficiency: the ratio of the squared swimming speed to the rate-of-working of the sheet against the fluid. Using the boundary element method, we show that the optimal wave form is a front-back symmetric regularized cusp that is 25% more efficient than the optimal sine wave. This optimal two-dimensional shape is smooth, qualitatively different from the kinked form of Lighthill's optimal three-dimensional flagellum, not predicted by small-amplitude theory, and different from the smooth circular-arc-like shape of active elastic filaments.

  13. Root-growth-inhibiting sheet

    Burton, Frederick G.; Cataldo, Dominic A.; Cline, John F.; Skiens, W. Eugene; Van Voris, Peter

    1993-01-01

    In accordance with this invention, a porous sheet material is provided at intervals with bodies of a polymer which contain a 2,6-dinitroaniline. The sheet material is made porous to permit free passage of water. It may be either a perforated sheet or a woven or non-woven textile material. A particularly desirable embodiment is a non-woven fabric of non-biodegradable material. This type of material is known as a "geotextile" and is used for weed control, prevention of erosion on slopes, and other landscaping purposes. In order to obtain a root repelling property, a dinitroaniline is blended with a polymer which is attached to the geotextile or other porous material.

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

    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

  15. Ice sheet hydrology - a review

    Jansson, Peter; Naeslund, Jens-Ove [Dept. of Physical Geography and Quaternary Geology, Stockholm Univ., Stockholm (Sweden); Rodhe, Lars [Geological Survey of Sweden, Uppsala (Sweden)

    2007-03-15

    This report summarizes the theoretical knowledge on water flow in and beneath glaciers and ice sheets and how these theories are applied in models to simulate the hydrology of ice sheets. The purpose is to present the state of knowledge and, perhaps more importantly, identify the gaps in our understanding of ice sheet hydrology. Many general concepts in hydrology and hydraulics are applicable to water flow in glaciers. However, the unique situation of having the liquid phase flowing in conduits of the solid phase of the same material, water, is not a commonly occurring phenomena. This situation means that the heat exchange between the phases and the resulting phase changes also have to be accounted for in the analysis. The fact that the solidus in the pressure-temperature dependent phase diagram of water has a negative slope provides further complications. Ice can thus melt or freeze from both temperature and pressure variations or variations in both. In order to provide details of the current understanding of water flow in conjunction with deforming ice and to provide understanding for the development of ideas and models, emphasis has been put on the mathematical treatments, which are reproduced in detail. Qualitative results corroborating theory or, perhaps more often, questioning the simplifications made in theory, are also given. The overarching problem with our knowledge of glacier hydrology is the gap between the local theories of processes and the general flow of water in glaciers and ice sheets. Water is often channelized in non-stationary conduits through the ice, features which due to their minute size relative to the size of glaciers and ice sheets are difficult to incorporate in spatially larger models. Since the dynamic response of ice sheets to global warming is becoming a key issue in, e.g. sea-level change studies, the problems of the coupling between the hydrology of an ice sheet and its dynamics is steadily gaining interest. New work is emerging

  16. Modelling the Antarctic Ice Sheet

    Pedersen, Jens Olaf Pepke; Holm, A.

    2015-01-01

    to sea level high stands during past interglacial periods. A number of AIS models have been developed and applied to try to understand the workings of the AIS and to form a robust basis for future projections of the AIS contribution to sea level change. The recent DCESS (Danish Center for Earth System......The Antarctic ice sheet is a major player in the Earth’s climate system and is by far the largest depository of fresh water on the planet. Ice stored in the Antarctic ice sheet (AIS) contains enough water to raise sea level by about 58 m, and ice loss from Antarctica contributed significantly...

  17. Ice sheet hydrology - a review

    Jansson, Peter; Naeslund, Jens-Ove; Rodhe, Lars

    2007-03-01

    This report summarizes the theoretical knowledge on water flow in and beneath glaciers and ice sheets and how these theories are applied in models to simulate the hydrology of ice sheets. The purpose is to present the state of knowledge and, perhaps more importantly, identify the gaps in our understanding of ice sheet hydrology. Many general concepts in hydrology and hydraulics are applicable to water flow in glaciers. However, the unique situation of having the liquid phase flowing in conduits of the solid phase of the same material, water, is not a commonly occurring phenomena. This situation means that the heat exchange between the phases and the resulting phase changes also have to be accounted for in the analysis. The fact that the solidus in the pressure-temperature dependent phase diagram of water has a negative slope provides further complications. Ice can thus melt or freeze from both temperature and pressure variations or variations in both. In order to provide details of the current understanding of water flow in conjunction with deforming ice and to provide understanding for the development of ideas and models, emphasis has been put on the mathematical treatments, which are reproduced in detail. Qualitative results corroborating theory or, perhaps more often, questioning the simplifications made in theory, are also given. The overarching problem with our knowledge of glacier hydrology is the gap between the local theories of processes and the general flow of water in glaciers and ice sheets. Water is often channelized in non-stationary conduits through the ice, features which due to their minute size relative to the size of glaciers and ice sheets are difficult to incorporate in spatially larger models. Since the dynamic response of ice sheets to global warming is becoming a key issue in, e.g. sea-level change studies, the problems of the coupling between the hydrology of an ice sheet and its dynamics is steadily gaining interest. New work is emerging

  18. Sheet Beam Klystron Instability Analysis

    Bane, K.

    2009-01-01

    Using the principle of energy balance we develop a 2D theory for calculating growth rates of instability in a two-cavity model of a sheet beam klystron. An important ingredient is a TE-like mode in the gap that also gives a longitudinal kick to the beam. When compared with a self-consistent particle-in-cell calculation, with sheet beam klystron-type parameters, agreement is quite good up to half the design current, 65 A; at full current, however, other, current-dependent effects come in and the results deviate significantly

  19. The social balance sheet 2004

    Ph. Delhez; P. Heuse

    2005-01-01

    Each year, in the 4th quarter’s Economic Review, the National Bank examines the provisional results of the social balance sheets. As all the social balance sheets are not yet available for 2004, the study is based on a limited population of enterprises, compiled according to the principle of a constant sample. This population is made up of 38,530 enterprises employing around 1,331,000 workers in 2004. The main results of the analysis, in terms of employment, working hours, labour cost and tra...

  20. FOCUSED FEASIBILITY STUDY OF PHYTOREMEDIATION ALTERNATIVE FOR THE INDUSTRIAL EXCESS LANDFILL SITE IN STARK COUNTY, OHIO.

    Focused feasibility study of phytoremediation alternative for the Industrial Excess Landfill site in Stark County, Ohio. More information can be found on the NPL Fact Sheet for this site at www.epa.gov/region5/superfund/npl/ohio/OHD000377971.htm

  1. 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

    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

  2. Review of: An analysis of flooding in Elk River and Freshwater Creek watersheds, Humboldt County, California (prepared by The Pacific Lumber Company, Scotia, California)

    L. M. Reid

    1999-01-01

    The reviewed report (PL 1999) attempts to demonstrate that logging conducted over the past decade or so in Freshwater and Elk watersheds has not caused increased flooding in downstream portions of the watersheds. However, most of the report's sections include information that supports the hypothesis that logging has aggravated flood hazard, produce conclusions...

  3. Geochronology of the Sleeper deposit, Humboldt County, Nevada: epithermal gold-silver mineralization following emplacement of a silicic flow-dome complex

    Conrad, J.E.; McKee, E.H.; Rytuba, J.J.; Nash, J.T.; Utterback, W.C.

    1993-01-01

    The high-grade gold-silver deposits at the Sleeper mine are low sulfidation, quartz-adularia-type epithermal deposits, formed during the final stages of igneous hydrothermal activity of a small middle Miocene silicic flow-dome complex in north-central Nevada. There were multiple pulses of alteration and mineralization but all occurred within a period of less than 2 m.y. Later supergene alteration formed opal and alunite about 5.4 Ma but produced no Au or Ag mineralization other than some remobilization to produce locally rich pockets of secondary Au and Ag enrichment and is unrelated to the older magmatic hydrothermal system. The Sleeper deposit in the northern part of the Great Basin is genetically related to bimodal volcanism that followed a long period of arc-related andesitic volcanism in the same general region. -from Authors

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

    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”.

  5. Latitudinal variation in the reproductive cycle of two bivalves with contrasting biogeographical origin along the Humboldt Current Upwelling Ecosystem

    Roberto A. Uribe

    2012-10-01

    Full Text Available Argopecten purpuratus (Lamarck, 1819 and Mesodesma donacium (Lamarck, 1818 are bivalves that inhabit the Humboldt Current Upwelling Ecosystem. They have contrasting biogeographical origins, suggesting that their responses to exogenous factors should differ. Using circular statistics, we examine synchrony/asynchrony in the reproductive cycle between populations of each species. The results indicate that there is reproductive asynchrony in both species along their distributional range. However, there was synchrony for A. purpuratus in several location-pairs, including Paita-Chimbote, Chimbote-Callao, Callao-Pisco and Pisco-Antofagasta. For M. donacium, there were only two synchronic groups: Camaná-Capellanía-Mehuín and Hornitos-Peñuelas-Longotoma-La Ligua-Cucao-Quilanlar. A. purpuratus showed gametogenenic activity throughout the year. In contrast, M. donacium showed strong seasonality, with gametogenesis in winter and spawning in spring/summer. In conclusion, the patterns observed for these sympatric species suggest that on a large scale the reproductive cycles follow the expected patterns for the contrasting biogeographic origin of each species, so it could be argued that they are modulated by endogenous factors. However, at a local scale, the reproductive cycles of these species show variation, likely determined by local oceanographic or hydrographic processes.

  6. Soil-structure interaction effects at the Humboldt Bay power plant in the Ferndale earthquake of June 7, 1975

    Valera, J.E.; Seed, H.B.; Tsai, C.F.; Lysmer, J.

    1977-01-01

    The distribution of ground motions and structural response in the Humboldt Bay Nuclear Power Station during the Ferndale earthquake of June 7, 1975 is analyzed. Based on a knowledge of the motions developed at the ground surface in the free-field, computations are made using an idealized complete interaction procedure based on finite element analysis, to determine the characteristics of the motions likely to develop at the base of the Refueling Building at a depth of 85 ft below the ground surface and within the Refueling Building at a depth of 85 ft below the ground surface and within the Refueling Building at the ground surface level. The computed motions are shown to be in reasonably good agreement with those recorded at these locations in the same earthquake. In addition, the recorded motions are compared with those computed by an analysis procedure which generally meets existing requirements of the Nuclear Regulatory Commission and it is shown that the regulatory requirements lead to an entirely adequate but not excessively conservative margin of safety based on the motions recorded in this event

  7. Species-specific patterns of diel migration into the Oxygen Minimum Zone by euphausiids in the Humboldt Current Ecosystem

    Antezana, Tarsicio

    2009-12-01

    A series of stratified bongo net samples taken over a 2 day period at ca. 18°S, about 20 nm off the coast of Peru, South America, suggest species-specific patterns of diel vertical migration into the Oxygen Minimum Zone (OMZ) of the Humboldt Current Ecosystem (HCE). The OMZ was the most dramatic feature of the water column and seemed to determine the extent of migration: Stylocheiron affine migrated only to the shallow oxycline; whereas Euphausia mucronata, Euphausia eximia, Euphausia distinguenda and Euphausia tenera migrated to the core of the OMZ; and Nematoscelis gracilis to beneath the core of the OMZ. Some differences were also found in the timing and duration of the ascent and descent, and residence times in shallow and deep layers. E. mucronata, N. gracilis and E. distinguenda displayed a normal descent during sunrise, and ascent during sunset. E. eximia and E. tenera also descended during sunrise but seemed to begin their ascent earlier in the afternoon and consequently shortened their deep residence times. S. affine showed the most extended residence times at the shallow layer and the shortest vertical displacement. Day and night vertical stratification and differences in the timing of migration into and out of the OMZ of the HCE suggest a community structure based on habitat partitioning whereby species avoided co-occurrence in time and space. Species-specific patterns of vertical stratification and migratory chronology are examined with regard to body and gill sizes, feeding adaptations of euphausiids, and potential food resources at the OMZ.

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

    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.

  9. Analogies et contrastes entre l'expédition d'Egypte et le voyage d'Humboldt et Bonpland

    Drouin Jean-Marc

    2001-01-01

    Full Text Available Alexandre de Humbodlt et Aimé Bonpland avaient prévu de se joindre aux savants de l'expédition française en Egypte. Ayant dû renoncer à ce projet et ayant obtenu l'autorisation du gouvernement espagnol, il réalisèrent leur voyage en Amérique Latine. La quasi-simultanéité des deux expéditions invite à une comparaison. Les points communs ne manquent pas: la production éditoriale au retour, le souci de rendre la science visible, l'importance du repérage spatial et de la collecte naturalistes. Cependant, malgré ces ressemblances, le rapport aux pays étudiés est assez contrasté dans ces deux voyages: non seulement à cause du cadre politique mais aussi parce que la conception du travail scientifique est différente. Tandis que l'expédition d'Egypte réduit seulement la distance du terrain au cabinet sans changer fondamentalement la nature de leur rapport, Humboldt transforme le terrain en laboratoire.

  10. Counterintuitive effects of global warming-induced wind patterns on primary production in the Northern Humboldt Current System.

    Mogollón, Rodrigo; R Calil, Paulo H

    2018-04-14

    It has been hypothesized that global warming will strengthen upwelling-favorable winds in the Northern Humboldt Current System (NHCS) as a consequence of the increase of the land-sea thermal gradient along the Peruvian coast. The effect of strengthened winds in this region is assessed with the use of a coupled physical-biogeochemical model forced with projected and climatological winds. Strengthened winds induce an increase in primary production of 2% per latitudinal degree from 9.5°S to 5°S. In some important coastal upwelling sites primary production is reduced. This is due to a complex balance between nutrient availability, nutrient use efficiency, as well as eddy- and wind-driven factors. Mesoscale activity induces a net offshore transport of inorganic nutrients, thus reducing primary production in the coastal upwelling region. Wind mixing, in general disadvantageous for primary producers, leads to shorter residence times in the southern and central coastal zones. Overall, instead of a proportional enhancement in primary production due to increased winds, the NHCS becomes only 5% more productive (+5 mol C m -2 year -1 ), 10% less limited by nutrients and 15% less efficient due to eddy-driven effects. It is found that regions with a initial strong nutrient limitation are more efficient in terms of nutrient assimilation which makes them more resilient in face of the acceleration of the upwelling circulation. © 2018 John Wiley & Sons Ltd.

  11. An essay on Wilhelm von Humboldt and the shaking palsy: first comprehensive description of Parkinson's disease by a patient.

    Horowski, R; Horowski, L; Vogel, S; Poewe, W; Kielhorn, F W

    1995-03-01

    James Parkinson first described what is now known as Parkinson's disease in his essay in 1817 on the shaking palsy, but the disease became well-known to neurologists only in the second half of the 19th century. In his letters from 1828 until his death in 1835, Wilhelm von Humboldt, a well-known German academic reformer, humanist scholar, and statesman, precisely described the manifestations of this disease. These included resting tremor and especially problems in writing, called by him "a special clumsiness" that he attributed to a disturbance in executing rapid complex movements. In addition to lucidly describing akinesia, he was also the first to describe micrographia. He furthermore noticed his typical parkinsonian posture and, in all probability, his rigidity as "internal tremor not visible by others which causes a distortion of the continuity of my movements." He insisted, however, that he was suffering not from a disease but just from accelerated aging related to the death of his wife. His description of the disease is more complete than the observations and definition by James Parkinson; his attitude toward his disease illustrates why it was not readily accepted as a disease in itself but might have been considered an extreme variant of aging instead.

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

    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.

  13. Learning from Balance Sheet Visualization

    Tanlamai, Uthai; Soongswang, Oranuj

    2011-01-01

    This exploratory study examines alternative visuals and their effect on the level of learning of balance sheet users. Executive and regular classes of graduate students majoring in information technology in business were asked to evaluate the extent of acceptance and enhanced capability of these alternative visuals toward their learning…

  14. Off-Balance Sheet Financing.

    Adams, Matthew C.

    1998-01-01

    Examines off-balance sheet financing, the facilities use of outsourcing for selected needs, as a means of saving operational costs and using facility assets efficiently. Examples of using outside sources for energy supply and food services, as well as partnering with business for facility expansion are provided. Concluding comments address tax…

  15. "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

    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".

  16. Whooping Cough (Pertussis) - Fact Sheet for Parents

    ... months 4 through 6 years Fact Sheet for Parents Color [2 pages] Español: Tosferina (pertussis) The best ... according to the recommended schedule. Fact Sheets for Parents Diseases and the Vaccines that Prevent Them Chickenpox ...

  17. 21 CFR 880.5180 - Burn sheet.

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Burn sheet. 880.5180 Section 880.5180 Food and... Burn sheet. (a) Identification. A burn sheet is a device made of a porous material that is wrapped aroung a burn victim to retain body heat, to absorb wound exudate, and to serve as a barrier against...

  18. Manifold free multiple sheet superplastic forming

    Elmer, John W.; Bridges, Robert L.

    2004-01-13

    Fluid-forming compositions in a container attached to enclosed adjacent sheets are heated to relatively high temperatures to generate fluids (gases) that effect inflation of the sheets. Fluid rates to the enclosed space between the sheets can be regulated by the canal from the container. Inflated articles can be produced by a continuous, rather than batch-type, process.

  19. On the possible eigenoscillations of neutral sheets

    Almeida, W.A.; Costa, J.M. da; Aruquipa, E.G.; Sudano, J.P.

    1974-12-01

    A neutral sheet model with hyperbolic tangent equilibrium magnetic field and hyperbolic square secant density profiles is considered. It is shown that the equation for small oscillations takes the form of an eigenvalue oscillation problem. Computed eigenfrequencies of the geomagnetic neutral sheet were found to be in the range of the resonant frequencies of the geomagnetic plasma sheet computed by other authors

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

    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

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

    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."

  2. Allegheny County Fatal Accidental Overdoses

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Fatal accidental overdose incidents in Allegheny County, denoting age, gender, race, drugs present, zip code of incident and zip code of residence. Zip code of...

  3. Allegheny County Zip Code Boundaries

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset demarcates the zip code boundaries that lie within Allegheny County.If viewing this description on the Western Pennsylvania Regional Data Center’s open...

  4. Allegheny County School District Boundaries

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset demarcates the school district boundaries within Allegheny County If viewing this description on the Western Pennsylvania Regional Data Center’s open...

  5. 2015 Lowndes County (GA) Lidar

    National Oceanic and Atmospheric Administration, Department of Commerce — TASK NAME: NOAA OCM Lidar for Lowndes County, GA with the option to Collect Lidar in Cook and Tift Counties, GA Lidar Data Acquisition and Processing Production Task...

  6. Allegheny County Fast Food Establishments

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — The Allegheny County Health Department has generated this list of fast food restaurants by exporting all chain restaurants without an alcohol permit from the...

  7. Allegheny County Park Rangers Outreach

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Launched in June 2015, the Allegheny County Park Rangers program reached over 48,000 people in its first year. Park Rangers interact with residents of all ages and...

  8. Allegheny County Jail Daily Census

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — A daily census of the inmates at the Allegheny County Jail (ACJ). Includes gender, race, age at booking, and current age. The records for each month contain a...

  9. Allegheny County Mortgage Foreclosure Records

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This data includes filings related to mortgage foreclosure in Allegheny County. The foreclosure process enables a lender to take possession of a property due to an...

  10. Allegheny County Poor Housing Conditions

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This estimate of the percent of distressed housing units in each Census Tract was prepared using data from the American Community Survey and the Allegheny County...

  11. Providing engineering services to counties.

    2008-09-01

    An engineer is required by law to safeguard the health, safety and welfare of the public. The current Kansas : statute state, The Board of County Commissioners of each county shall appoint a licensed professional : engineer, whose title shall be c...

  12. Allegheny County Cell Tower Points

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset portrays cell tower locations as points in Allegheny County. The dataset is based on outbuilding codes in the Property Assessment Parcel Database used...

  13. Curry County E-911 Roads

    Earth Data Analysis Center, University of New Mexico — Line attributes denoting all street centerlines in Curry County. Dataset includes all centerlines for all county maintained roads, all state and federal highways,and...

  14. Allegheny County Summer Food Sites

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This data set shows the Summer Food Sites located within Allegheny County for children (18 years and younger) for breakfast and lunch during summer recess. OPEN...

  15. Allegheny County Property Sale Transactions

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains data on all Real Property parcels that have sold since 2013 in Allegheny County, PA. Before doing any market analysis on property sales, check...

  16. Allegheny County Land Use Areas

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Allegheny County land use as ascribed to areas of land. The Land Use Feature Dataset contains photogrammetrically compiled information concerning vegetation and...

  17. DOT Official County Highway Map

    Minnesota Department of Natural Resources — The County Highway Map theme is a scanned and rectified version of the original MnDOT County Highway Map Series. The cultural features on some of these maps may be...

  18. Allegheny County Primary Care Access

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — The data on health care facilities includes the name and location of all the hospitals and primary care facilities in Allegheny County. The current listing of...

  19. Historic mills and mill tailings as potential sources of contamination in and near the Humboldt River basin, northern Nevada. Chapter D.

    Nash, J. Thomas; Stillings, Lisa L.

    2003-01-01

    Reconnaissance field studies of 40 mining districts in and near the Humboldt River basin have identified 83 mills and associated tailings impoundments and several other kinds of mineral-processing facilities (smelters, mercury retorts, heap-leach pads) related to historic mining. The majority of the mills and tailings sites are not recorded in the literature. All tailings impoundments show evidence of substantial amounts of erosion. At least 11 tailings dams were breached by flood waters, carrying fluvial tailings 1 to 15 km down canyons and across alluvial fans. Most of the tailings sites are dry most of the year, but some are near streams. Tailings that are wet for part of the year do not appear to be reacting significantly with those waters because physical factors such as clay layers and hard-pan cement appear to limit permeability and release of metals to surface waters. The major impact of mill tailings on surface- water quality may be brief flushes of runoff during storm events that carry acid and metals released from soluble mineral crusts. Small ephemeral ponds and puddles that tend to collect in trenches and low areas on tailings impoundments tend to be acidic and extremely enriched in metals, in part through cycles of evaporation. Ponded water that is rich in salts and metals could be acutely toxic to unsuspecting animals. Rare extreme storms have the potential to cause catastrophic failure of tailings impoundments, carry away metals in stormwaters, and transport tailings as debris flows for 1 to 15 km. In most situations these stormwaters and transported tailings could impact wildlife but probably would impact few or no people or domes-tic water wells. Because all identified historic tailings sites are several kilometers or more from the Humboldt River and major tributaries, tailings probably have no measurable impact on water quality in the main stem of the Humboldt River.

  20. Geometry of thin liquid sheet flows

    Chubb, Donald L.; Calfo, Frederick D.; Mcconley, Marc W.; Mcmaster, Matthew S.; Afjeh, Abdollah A.

    1994-01-01

    Incompresible, thin sheet flows have been of research interest for many years. Those studies were mainly concerned with the stability of the flow in a surrounding gas. Squire was the first to carry out a linear, invicid stability analysis of sheet flow in air and compare the results with experiment. Dombrowski and Fraser did an experimental study of the disintegration of sheet flows using several viscous liquids. They also detected the formulation of holes in their sheet flows. Hagerty and Shea carried out an inviscid stability analysis and calculated growth rates with experimental values. They compared their calculated growth rates with experimental values. Taylor studied extensively the stability of thin liquid sheets both theoretically and experimentally. He showed that thin sheets in a vacuum are stable. Brown experimentally investigated thin liquid sheet flows as a method of application of thin films. Clark and Dumbrowski carried out second-order stability analysis for invicid sheet flows. Lin introduced viscosity into the linear stability analysis of thin sheet flows in a vacuum. Mansour and Chigier conducted an experimental study of the breakup of a sheet flow surrounded by high-speed air. Lin et al. did a linear stability analysis that included viscosity and a surrounding gas. Rangel and Sirignano carried out both a linear and nonlinear invisid stability analysis that applies for any density ratio between the sheet liquid and the surrounding gas. Now there is renewed interest in sheet flows because of their possible application as low mass radiating surfaces. The objective of this study is to investigate the fluid dynamics of sheet flows that are of interest for a space radiator system. Analytical expressions that govern the sheet geometry are compared with experimental results. Since a space radiator will operate in a vacuum, the analysis does not include any drag force on the sheet flow.

  1. Ice sheet hydrology from observations

    Jansson, Peter [Dept. of Physical Geography and Quaternary Geology, Stockholm Univ-, Stockholm (Sweden)

    2010-11-15

    The hydrological systems of ice sheets are complex. Our view of the system is split, largely due to the complexity of observing the systems. Our basic knowledge of processes have been obtained from smaller glaciers and although applicable in general to the larger scales of the ice sheets, ice sheets contain features not observable on smaller glaciers due to their size. The generation of water on the ice sheet surface is well understood and can be satisfactorily modeled. The routing of water from the surface down through the ice is not complicated in terms of procat has been problematic is the way in which the couplings between surface and bed has been accomplished through a kilometer of cold ice, but with the studies on crack propagation and lake drainage on Greenland we are beginning to understand also this process and we know water can be routed through thick cold ice. Water generation at the bed is also well understood but the main problem preventing realistic estimates of water generation is lack of detailed information about geothermal heat fluxes and their geographical distribution beneath the ice. Although some average value for geothermal heat flux may suffice, for many purposes it is important that such values are not applied to sub-regions of significantly higher fluxes. Water generated by geothermal heat constitutes a constant supply and will likely maintain a steady system beneath the ice sheet. Such a system may include subglacial lakes as steady features and reconfiguration of the system is tied to time scales on which the ice sheet geometry changes so as to change pressure gradients in the basal system itself. Large scale re-organization of subglacial drainage systems have been observed beneath ice streams. The stability of an entirely subglacially fed drainage system may hence be perturbed by rapid ice flow. In the case of Antarctic ice streams where such behavior has been observed, the ice streams are underlain by deformable sediments. It is

  2. Periodic folding of viscous sheets

    Ribe, Neil M.

    2003-09-01

    The periodic folding of a sheet of viscous fluid falling upon a rigid surface is a common fluid mechanical instability that occurs in contexts ranging from food processing to geophysics. Asymptotic thin-layer equations for the combined stretching-bending deformation of a two-dimensional sheet are solved numerically to determine the folding frequency as a function of the sheet’s initial thickness, the pouring speed, the height of fall, and the fluid properties. As the buoyancy increases, the system bifurcates from “forced” folding driven kinematically by fluid extrusion to “free” folding in which viscous resistance to bending is balanced by buoyancy. The systematics of the numerically predicted folding frequency are in good agreement with laboratory experiments.

  3. Ice sheet hydrology from observations

    Jansson, Peter

    2010-11-01

    The hydrological systems of ice sheets are complex. Our view of the system is split, largely due to the complexity of observing the systems. Our basic knowledge of processes have been obtained from smaller glaciers and although applicable in general to the larger scales of the ice sheets, ice sheets contain features not observable on smaller glaciers due to their size. The generation of water on the ice sheet surface is well understood and can be satisfactorily modeled. The routing of water from the surface down through the ice is not complicated in terms of procat has been problematic is the way in which the couplings between surface and bed has been accomplished through a kilometer of cold ice, but with the studies on crack propagation and lake drainage on Greenland we are beginning to understand also this process and we know water can be routed through thick cold ice. Water generation at the bed is also well understood but the main problem preventing realistic estimates of water generation is lack of detailed information about geothermal heat fluxes and their geographical distribution beneath the ice. Although some average value for geothermal heat flux may suffice, for many purposes it is important that such values are not applied to sub-regions of significantly higher fluxes. Water generated by geothermal heat constitutes a constant supply and will likely maintain a steady system beneath the ice sheet. Such a system may include subglacial lakes as steady features and reconfiguration of the system is tied to time scales on which the ice sheet geometry changes so as to change pressure gradients in the basal system itself. Large scale re-organization of subglacial drainage systems have been observed beneath ice streams. The stability of an entirely subglacially fed drainage system may hence be perturbed by rapid ice flow. In the case of Antarctic ice streams where such behavior has been observed, the ice streams are underlain by deformable sediments. It is

  4. Estructura del subsistema demersal durante el crucero de evaluación del recurso Merluza, BIC Humboldt 9705-06, Callao a Puerto Pizarro

    Elliott Rodríguez, Walter; Paredes Bulnes, Flor

    1997-01-01

    Presenta la estructura especiológica, distribución, espacio temporal y captura de peces e invertebrados accesibles a redes tipo Granton 130/400 y Engel 998/400, empleadas durante el Crucero de Evaluación del recurso merluza BIC Humboldt 9705-06. Así como el análisis de comunidades de peces del fondo de la fauna acompañante. Se capturó 134 especies: 99 fueron peces, 19 crustáceos, 12 moluscos, 2 equinodermos, 1 cnidario, 1 sipuncúlido y un cordado. En comparación con los dos últimos crucero...

  5. 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

    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...

  6. Load Test in Sheet Pile

    Luis Orlando Ibanez

    2016-01-01

    In this work, are discussed experiences in the use of mathematical modeling and testing in hydraulic engineering structures. For this purpose the results of load tests in sheet pile, evaluating horizontal and vertical deformations that occur in the same exposed. Comparisons between theoretical methods for calculating deformations and mathematical models based on the Finite Element Method are established. Finally, the coincidence between the numerical model and the results of the load test ful...

  7. Ohm's law for a current sheet

    Lyons, L. R.; Speiser, T. W.

    1985-01-01

    The paper derives an Ohm's law for single-particle motion in a current sheet, where the magnetic field reverses in direction across the sheet. The result is considerably different from the resistive Ohm's law often used in MHD studies of the geomagnetic tail. Single-particle analysis is extended to obtain a self-consistency relation for a current sheet which agrees with previous results. The results are applicable to the concept of reconnection in that the electric field parallel to the current is obtained for a one-dimensional current sheet with constant normal magnetic field. Dissipated energy goes directly into accelerating particles within the current sheet.

  8. Minnesota County Boundaries - lines

    Minnesota Department of Natural Resources — Minnesota county boundaries derived from a combination of 1:24,000 scale PLS lines, 1:100,000 scale TIGER, 1:100,000 scale DLG, and 1:24,000 scale hydrography lines....

  9. Minnesota County Boundaries

    Minnesota Department of Natural Resources — Minnesota county boundaries derived from a combination of 1:24,000 scale PLS lines, 1:100,000 scale TIGER, 1:100,000 scale DLG, and 1:24,000 scale hydrography lines....

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

    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.

  11. Relationship between viral and prokaryotic abundance on the Bajo O’Higgins 1 Seamount (Humboldt Current System off Chile

    Oscar E. Chiang

    2007-03-01

    Full Text Available There is little known about the ecology of microbial communities living in the water column over seamounts. Here, for the first time, the spatial distribution and abundance of virus-like particles (VLP are described over a seamount. The association between VLP distribution, prokaryotic abundance, and environmental variables is also analyzed. Sampling was conducted in December 2004 on the Bajo O’Higgins 1 seamount (32°54’S, 73°53’W located in the Humboldt Current System off Chile. A oxygen minimum layer (OMZ was clearly present between 130 and 280 m in the water column over the seamount. Water samples were taken with Niskin bottles at 10 oceanographic stations over the seamount at depths of 5, 20, 50, 75, 100, and 150 m and at the benthic boundary layer (BBL; 5-12 m over the sediments. Temperature, salinity, oxygen, chlorophyll , and phaeopigments were measured at each station. Viral and prokaryotic abundances were determined with fluorochrome SYBR Green I. Viral abundance ranged from 1.53 x 109 VLP L-1 - 16.48 x 109 VLP L-1, whereas prokaryotic abundance ranged from 1.78 x 10 8 cell L-1 - 14.91 x 108 cell L-1. The virus-like particle/prokaryote ratio varied widely among the analyzed layers (i.e. surface, OMZ, and BBL, probably due to the presence of different prokaryotic and viral assemblages in each layer. Our results indicate that the environmental conditions, mainly the concentration of dissolved oxygen in the water column over Bajo O’Higgins 1 seamount, shape the association between viral and prokaryotic abundance.

  12. Experimental formability analysis of bondal sandwich sheet

    Kami, Abdolvahed; Banabic, Dorel

    2018-05-01

    Metal/polymer/metal sandwich sheets have recently attracted the interests of industries like automotive industry. These sandwich sheets have superior properties over single-layer metallic sheets including good sound and vibration damping and light weight. However, the formability of these sandwich sheets should be enhanced which requires more research. In this paper, the formability of Bondal sheet (DC06/viscoelastic polymer/DC06 sandwich sheet) was studied through different types of experiments. The mechanical properties of Bondal were determined by uniaxial tensile tests. Hemispherical punch stretching and hydraulic bulge tests were carried out to determine the forming limit diagram (FLD) of Bondal. Furthermore, cylindrical and square cup drawing tests were performed in dry and oil lubricated conditions. These tests were conducted at different blank holding forces (BHFs). An interesting observation about Bondal sheet deep drawing was obtaining of higher drawing depths at dry condition in comparison with oil-lubricated condition.

  13. Buckling and stretching of thin viscous sheets

    O'Kiely, Doireann; Breward, Chris; Griffiths, Ian; Howell, Peter; Lange, Ulrich

    2016-11-01

    Thin glass sheets are used in smartphone, battery and semiconductor technology, and may be manufactured by producing a relatively thick glass slab and subsequently redrawing it to a required thickness. The resulting sheets commonly possess undesired centerline ripples and thick edges. We present a mathematical model in which a viscous sheet undergoes redraw in the direction of gravity, and show that, in a sufficiently strong gravitational field, buckling is driven by compression in a region near the bottom of the sheet, and limited by viscous resistance to stretching of the sheet. We use asymptotic analysis in the thin-sheet, low-Reynolds-number limit to determine the centerline profile and growth rate of such a viscous sheet.

  14. A liberdade de consciência e sua implicação na concepção educacional de Condorcet, Humboldt e Mill

    Itamaragiba Chaves Xavier

    2015-07-01

    Full Text Available O objetivo do presente artigo é compreender qual a concepção educacional de Condorcet, Humboldt e Mill através da análise da categoria liberdade de consciência. O referencial teórico-metodológico empregado é o materialismo histórico. As fontes utilizadas são: Esboço de um quadro histórico dos progressos do espírito humano (CONDORCET, 1993, Bosquejo de un cuadro histórico de los progresos del espíritu humano y otros textos (CONDORCET, 1997, Cinco memórias sobre a instrução pública (CONDORCET, 2008 e Escritos sobre instrução pública: Condorcet (CONDORCET, 2010,  Os limites da acção do estado (HUMBOLDT, 1990, Princípios de economia política (MILL, 1988 e Sobre a liberdade (MILL, 1991. Pode-se concluir que a liberdade de consciência influenciou de forma diferente a concepção de escola pública e laica em cada um dos autores.

  15. Strontium-90 fluoride data sheet

    Fullam, H.T.

    1981-06-01

    This report is a compilation of available data and appropriate literature references on the properties of strontium-90 fluoride and nonradioactive strontium fluoride. The objective of the document is to compile in a single source pertinent data to assist potential users in the development, licensing, and use of /sup 90/SrF/sub 2/-fueled radioisotope heat sources for terrestrial power conversion and thermal applications. The report is an update of the Strontium-90 Fluoride Data Sheet (BNWL-2284) originally issued in April 1977.

  16. Vietnamese Hurricane Response Fact Sheets

    Các tờ dữ kiện được cung cấp nơi đây mô tả vai trò của EPA trong việc đáp ứng với bão và cách các chương trình cụ thể cung cấp sự hỗ trợ. The Vietnamese fact sheets provided here describe EPA's role in a hurricane response.

  17. Limerick, City and County

    2011-01-01

    Postcard. Colour drawings of maps of Limerick city and county and Foynes - transatlantic air base flying boat, Dromore Castle, Glenstal Abbey, Ardagh Chalice, Askeaton; the Abbey, Gate Loge Adare Manor, Newcastlewest, King John's Castle, St. Mary's Cathedral (Church of Ireland), The Old Custom House, The Hunt Museum, The Old Mill and Bridge croom, The Coll (de Valera) Cottage Buree, Town Gate Kilmallock, Lough Gur Interpretive Centre, Hospital Ancient hostelry and The Treaty Stone. Copyright ...

  18. UNEMPLOYMENT IN HUNEDOARA COUNTY

    CLAUDIA ISAC

    2015-12-01

    Full Text Available Unemployment highlights a state of imbalance on the labour market which is characterized by a surplus of workforce in relation to job vacancies. This imbalance has been more apparent in Hunedoara County than in other counties, due to the fact that there are 3 mono-industrial areas that have been restructured over the past two decades. The effects are presented in this paper in the form of a complex statistical analysis. Thus, based on the evolution of the number of unemployed individuals in 1995, one can observe the periods of significant adverse effects upon the degree of employment. Moreover, one can make correlations with periods of international financial crisis and with the number of employees in the County in order to determine significant variables of the unemployment phenomenon. The content of this paper is significant and represents the analysis of the number of unemployed in the Jiu Valley, scattered across towns. As a form of financial protection, the unemployment benefit represents a financial instrument in the cases determined by this negative phenomenon, which is why in conclusion we make a comparison of the ways this aid is granted throughout several years and in various forms.

  19. AI applications in sheet metal forming

    Hussein, Hussein

    2017-01-01

    This book comprises chapters on research work done around the globe in the area of artificial intelligence (AI) applications in sheet metal forming. The first chapter offers an introduction to various AI techniques and sheet metal forming, while subsequent chapters describe traditional procedures/methods used in various sheet metal forming processes, and focus on the automation of those processes by means of AI techniques, such as KBS, ANN, GA, CBR, etc. Feature recognition and the manufacturability assessment of sheet metal parts, process planning, strip-layout design, selecting the type and size of die components, die modeling, and predicting die life are some of the most important aspects of sheet metal work. Traditionally, these activities are highly experience-based, tedious and time consuming. In response, researchers in several countries have applied various AI techniques to automate these activities, which are covered in this book. This book will be useful for engineers working in sheet metal industri...

  20. Dynamics of Radially Expanding Liquid Sheets

    Majumdar, Nayanika; Tirumkudulu, Mahesh S.

    2018-04-01

    The process of atomization often involves ejecting thin liquid sheets at high speeds from a nozzle that causes the sheet to flap violently and break up into fine droplets. The flapping of the liquid sheet has long been attributed to the sheet's interaction with the surrounding gas phase. Here, we present experimental evidence to the contrary and show that the flapping is caused by the thinning of the liquid sheet as it spreads out from the nozzle exit. The measured growth rates of the waves agree remarkably well with the predictions of a recent theory that accounts for the sheet's thinning but ignores aerodynamic interactions. We anticipate these results to not only lead to more accurate predictions of the final drop-size distribution but also enable more efficient designs of atomizers.

  1. 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

    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

  2. Shape Optimization of Swimming Sheets

    Wilkening, J.; Hosoi, A.E.

    2005-03-01

    The swimming behavior of a flexible sheet which moves by propagating deformation waves along its body was first studied by G. I. Taylor in 1951. In addition to being of theoretical interest, this problem serves as a useful model of the locomotion of gastropods and various micro-organisms. Although the mechanics of swimming via wave propagation has been studied extensively, relatively little work has been done to define or describe optimal swimming by this mechanism.We carry out this objective for a sheet that is separated from a rigid substrate by a thin film of viscous Newtonian fluid. Using a lubrication approximation to model the dynamics, we derive the relevant Euler-Lagrange equations to optimize swimming speed and efficiency. The optimization equations are solved numerically using two different schemes: a limited memory BFGS method that uses cubic splines to represent the wave profile, and a multi-shooting Runge-Kutta approach that uses the Levenberg-Marquardt method to vary the parameters of the equations until the constraints are satisfied. The former approach is less efficient but generalizes nicely to the non-lubrication setting. For each optimization problem we obtain a one parameter family of solutions that becomes singular in a self-similar fashion as the parameter approaches a critical value. We explore the validity of the lubrication approximation near this singular limit by monitoring higher order corrections to the zeroth order theory and by comparing the results with finite element solutions of the full Stokes equations.

  3. Magnetic properties of sheet silicates

    Ballet, O.; Coey, J.M.D.

    1982-01-01

    Susceptibility, magnetisation and Moessbauer measurements are reported for a representative selection of 2:1 layer phyllosilicates. Eight samples from the mica, vermiculite and smectite groups include examples diluted in iron which are paramagnetic at all temperatures, as well as iron-rich silicates which order magnetically below 10 K. Anisotropic susceptibility of crystals of muscovite, biotite and vermiculite is quantitatively explained with a model where the Fe 2+ ions lie in sites of effective trigonal symmetry, the trigonal axis lying normal to the sheets. The ferrous ground state is an orbital singlet. Ferric iron gives an isotropic contribution to the susceptibility. Fe 2+ -Fe 2+ exchange interactions are ferromagnetic with Gapprox. equal to2 K, whereas Fe 3+ -Fe 3+ coupling is antiferromagnetic in the purely ferric minerals. A positive paramagnetic Curie temperature for glauconite may be attributable to Fe 2+ → Fe 3+ charge transfer. Magnetic order was found to set in inhomogeneously for glauconite at 1-7 K. One biotite sample showed an antiferromagnetic transition at Tsub(N) = 7 K marked by a well-defined susceptibility maximum. Its magnetic structure, consisting of ferromagnetic sheets with moments in their planes coupled antiferromagnetically by other, weak interactions, resembles that found earlier for the 1:1 mineral greenalite. (orig.)

  4. Effect of Interannual Variability on the Ocean Acidification-induced Habitat Restriction of the Humboldt Current System.

    Franco, A. C.; Gruber, N.; Munnich, M.

    2016-02-01

    The Humboldt Current System (HCS) is one of the most productive ecosystems in the world. This high productivity is supported by a large input of nutrients from the subsurface layers to the surface due to year-round upwelling. However, upwelling also supplies waters with low pH and low aragonite saturation state potentially affecting many organisms, especially those that calcify. The influence, extent and source of upwelled water varies substantially on interannual timescales in association with the El Niño/Southern Oscillation (ENSO) phenomenon, accentuating productivity during La Niña events and dampening it during El Niño, altering the dynamics of the whole ecosystem. On top of this natural variability, the continuing acidification of the upper ocean in response to raising atmospheric CO2 may decrease pH further and increase the volume of water corrosive to aragonite in this region, leading to a progressively smaller suitable habitat for sensitive organisms. Here we use an eddy-resolving basin-scale ocean model that covers the whole Pacific Ocean with higher resolution near the coast off South America ( 6 km) to investigate the role of ENSO events on low aragonite saturation episodes and productivity variations. We compare 2 simulations: a hindcast simulation that spans the last 30 years and a future scenario that represents year 2090 (following IPCC's "business-as-usual" scenario). We found that in the region off Peru, the sole effect of increasing atmospheric CO2 to 840 matm shoals the annual average aragonite saturation depth to 30 m, creating a year round presence of aragonite undersaturated water in the euphotic zone. We then contrast the effect on primary productivity and the aragonite saturation state of at least eight El Niño and eight La Niña episodes that have been reported for the past 30 years, in an attempt to answer the question: does habitat availability under future ocean acidification will resemble a pervasive La Niña-like state?

  5. Contrasting Responses of the Humboldt Current Ecosystem between the Holocene and MIS5e Interglacials Revealed from Multiple Sediment Records

    Salvatteci, R.; Schneider, R. R.; Blanz, T.; Martinez, P.; Crosta, X.

    2016-12-01

    The Humboldt Current Ecosystem (HCE) off Peru yields about 10% of the global fish catch, producing more fish per unit area than any other region in the world. The high productivity is maintained by the upwelling of cold, nutrient-rich water from the oxygen minimum zone (OMZ), driven by strong trade winds. However, the potential impacts of climate change on upwelling dynamics and oceanographic conditions in the near future are uncertain, threatening local and global economies. Here, we unravel the response of the HCE to contrasting climatic conditions during the last two interglacials (i.e. Holocene and MIS5e) providing an independent insight about the relation between climatic factors and upwelling and productivity dynamics. For this purpose, we used multiple cores to reconstruct past changes in OMZ and upwelling intensity, productivity and fish biomass variability. Chronologies for the Holocene were obtained by multiple 14C ages and laminae correlations among cores, while for the MIS5e they were mainly done by correlation of prominent features in several proxies with other published records. We used a multiproxy approach including alkenones to reconstruct sea surface temperatures, δ15N as a proxy for water column denitrification, redox sensitive metals as proxies for sediment redox conditions, and diatom and fish debris assemblages to reconstruct ecological changes. The results show a very different response of the HCE to climate conditions during the last 2 interglacials, likely driven by changes in Tropical Pacific dynamics. During the Holocene we find that 1) the Late Holocene exhibits higher multi-centennial scale variability compared to the Early Holocene, 2) increased upwelling and a weak OMZ during the mid-Holocene, and 3) long term increase in productivity (diatoms and fishes) from the Early to the Late Holocene. During the MIS5e we find an 1) intense OMZ, 2) strong water column stratification, 3) high siliceous biomass, and 4) low fish biomass compared

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

    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

  7. Weld Repair of Thin Aluminum Sheet

    Beuyukian, C. S.; Mitchell, M. J.

    1986-01-01

    Weld repairing of thin aluminum sheets now possible, using niobium shield and copper heat sinks. Refractory niobium shield protects aluminum adjacent to hole, while copper heat sinks help conduct heat away from repair site. Technique limits tungsten/inert-gas (TIG) welding bombardment zone to melt area, leaving surrounding areas around weld unaffected. Used successfully to repair aluminum cold plates on Space Shuttle, Commercial applications, especially in sealing fractures, dents, and holes in thin aluminum face sheets or clad brazing sheet in cold plates, heat exchangers, coolers, and Solar panels. While particularly suited to thin aluminum sheet, this process also used in thicker aluminum material to prevent surface damage near weld area.

  8. Predicting Pulsar Scintillation from Refractive Plasma Sheets

    Simard, Dana; Pen, Ue-Li

    2018-05-01

    The dynamic and secondary spectra of many pulsars show evidence for long-lived, aligned images of the pulsar that are stationary on a thin scattering sheet. One explanation for this phenomenon considers the effects of wave crests along sheets in the ionized interstellar medium, such as those due to Alfvén waves propagating along current sheets. If these sheets are closely aligned to our line-of-sight to the pulsar, high bending angles arise at the wave crests and a selection effect causes alignment of images produced at different crests, similar to grazing reflection off of a lake. Using geometric optics, we develop a simple parameterized model of these corrugated sheets that can be constrained with a single observation and that makes observable predictions for variations in the scintillation of the pulsar over time and frequency. This model reveals qualitative differences between lensing from overdense and underdense corrugated sheets: Only if the sheet is overdense compared to the surrounding interstellar medium can the lensed images be brighter than the line-of-sight image to the pulsar, and the faint lensed images are closer to the pulsar at higher frequencies if the sheet is underdense, but at lower frequencies if the sheet is overdense.

  9. Somerset County Renewable Energy Initiative

    Katula, Denise [County of Somerset, Somervile, NJ (United States)

    2014-05-07

    The County of Somerset, New Jersey, through the Somerset County Improvement Authority (SCIA), applied Federal funding through the U.S. Department of Energy to will apply project funds to buy-down the capital costs of equipment associated with the installation of solar photovoltaic (PV) systems at two sites owned by the County. This Renewable Energy Initiative allows the County to take advantage of clean renewable energy, without any adverse debt impacts, and at a price that results in operating budget savings beyond what is presently available in the marketplace. This project addressed the objectives of the Office of Energy Efficiency and Renewable Energy by making the acquisition of renewable energy more affordable for the County, thereby, encouraging other counties and local units to develop similar programs and increase the deployment of solar energy technologies. The two sites that were funded by the DOE grant are part of a much larger, ambitious, and unique renewable energy project, described in the next section.

  10. Buckling of Aluminium Sheet Components

    Hegadekatte, Vishwanath; Shi, Yihai; Nardini, Dubravko

    Wrinkling is one of the major defects in sheet metal forming processes. It may become a serious obstacle to implementing the forming process and assembling the parts, and may also play a significant role in the wear of the tool. Wrinkling is essentially a local buckling phenomenon that results from compressive stresses (compressive instability) e.g., in the hoop direction for axi-symmetric systems such as beverage cans. Modern beverage can is a highly engineered product with a complex geometry. Therefore in order to understand wrinkling in such a complex system, we have started by studying wrinkling with the Yoshida buckling test. Further, we have studied the buckling of ideal and dented beverage cans under axial loading by laboratory testing. We have modelled the laboratory tests and also the imperfection sensitivity of the two systems using finite element method and the predictions are in qualitative agreement with experimental data.

  11. Biological, physical, nutrients, and other data were collected from bottle casts, CTD casts, net casts, and other instruments from the A.V. HUMBOLDT and the JOHAN HJORT from the Norwegian Sea in support of the Global Ocean Ecosystems Dynamics from 1993-06-02 to 1993-06-13 (NODC Accession 0000780)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bottle, CTD, net, and other data were collected from the A.V. HUMBOLDT and the JOHAN HJORT from the Norwegian Sea. Data were collected by multiple institutions in...

  12. 46 CFR 232.4 - Balance sheet accounts.

    2010-10-01

    ... 46 Shipping 8 2010-10-01 2010-10-01 false Balance sheet accounts. 232.4 Section 232.4 Shipping... ACTIVITIES UNIFORM FINANCIAL REPORTING REQUIREMENTS Balance Sheet § 232.4 Balance sheet accounts. (a.... (b) Purpose of balance sheet accounts. The balance sheet accounts are intended to disclose the...

  13. Case study: Khoramdareh County

    Vahid Riahi Riahi

    2016-10-01

    Full Text Available Environmental sustainability of rural settlements based on a systematic viewpoint may be defined as a realization of sustainable development in different social, economic and environmental aspects of rural areas. Achieving this goal requires that we pay more attention to effective elements and factors through a set of sustainability indices. This research was meant to analyze sustainable factors of rural settlement in three dimensions: environmental, social and economic context using multi-criteria decision analysis and explanation of the relationships between its active and effective factors in the rural area of the Khorramdarreh County in the province of Zanjan. The research method used is the descriptive analytic approach. Data from 287 households were sampled randomly from a total of 1143 households in the four villages including: Rahmat Abad, Alvand, Baghdareh and, Sukhariz (out of 15 villages in the Khorramdarreh County. In the process of doing this research and after calculating the weights, the difference in the sustainability of environmental, social, economic and physical aspects in rural areas of this county have been determined. Data was collected using library and field research through questionnaires. Data analysis was performed by the One-Sample t Test and the Vikur and path analysis techniques, using statistical software SPSS. The findings show that environmental sustainability in the study area is half desirable. Among the different aspects of environmental sustainability, the most effective factors are physical, economic, social and environmental aspects, respectively. Little attention of policy-making –system to socio-cultural and environmental aspects, especially in practice, and rapid and unplanned utilization of production resources are the most important factors affecting this situation in two given dimensions. Although, in programmed documents the planning system agents emphasize on the socio-cultural sustainability

  14. Fact Sheets on Pesticides in Schools.

    National Coalition against the Misuse of Pesticides, Washington, DC.

    This document consists of a collection of fact sheets about the use of pesticides in schools and how to reduce it. The sheets are: (1) "Alternatives to Using Pesticides in Schools: What Is Integrated Pest Management?"; (2) "Health Effects of 48 Commonly Used Pesticides in Schools"; (3) "The Schooling of State Pesticide…

  15. Balance velocities of the Greenland ice sheet

    Joughin, I.; Fahnestock, M.; Ekholm, Simon

    1997-01-01

    We present a map of balance velocities for the Greenland ice sheet. The resolution of the underlying DEM, which was derived primarily from radar altimetery data, yields far greater detail than earlier balance velocity estimates for Greenland. The velocity contours reveal in striking detail......, the balance map is useful for ice-sheet modelling, mass balance studies, and field planning....

  16. Advanced friction modeling for sheet metal forming

    Hol, J.; Cid Alfaro, M.V.; de Rooij, Matthias B.; Meinders, Vincent T.

    2012-01-01

    The Coulomb friction model is frequently used for sheet metal forming simulations. This model incorporates a constant coefficient of friction and does not take the influence of important parameters such as contact pressure or deformation of the sheet material into account. This article presents a

  17. Advanced friction modeling in sheet metal forming

    Hol, J.; Cid Alfaro, M.V.; Meinders, Vincent T.; Huetink, Han

    2011-01-01

    The Coulomb friction model is frequently used for sheet metal forming simulations. This model incorporates a constant coefficient of friction and does not take the influence of important parameters such as contact pressure or deformation of the sheet material into account. This article presents a

  18. Antibubbles and fine cylindrical sheets of air

    Beilharz, D.; Guyon, A.; Li, E.Q.; Thoraval, Marie-Jean; Thoroddsen, S.T.

    2015-01-01

    Drops impacting at low velocities onto a pool surface can stretch out thin hemispherical sheets of air between the drop and the pool. These air sheets can remain intact until they reach submicron thicknesses, at which point they rupture to form a myriad of microbubbles. By impacting a

  19. Molding cork sheets to complex shapes

    Sharpe, M. H.; Simpson, W. G.; Walker, H. M.

    1977-01-01

    Partially cured cork sheet is easily formed to complex shapes and then final-cured. Temperature and pressure levels required for process depend upon resin system used and final density and strength desired. Sheet can be bonded to surface during final cure, or can be first-formed in mold and bonded to surface in separate step.

  20. 2015 Resident Survey (City and County)

    City and County of Durham, North Carolina — The purpose of the annual City/County survey: To objectively assess citizen satisfaction with the delivery of City/County servicesTo set a baseline for future...

  1. Allegheny County Beltway System Street Centerlines

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Authoritative dataset of the beltway system in Allegheny County. The system was developed to help motorists navigate through Allegheny County on low-traffic roads....

  2. 2016 Resident Survey (City and County)

    City and County of Durham, North Carolina — The purpose of the annual City/County survey: To objectively assess citizen satisfaction with the delivery of City/County servicesTo set a baseline for future...

  3. Pressure balance between lobe and plasma sheet

    Baumjohann, W.; Paschmann, G.; Luehr, H.

    1990-01-01

    Using eight months of AMPTE/IRM plasma and magnetic field data, the authors have done a statistical survey on the balance of total (thermal and magnetic) pressure in the Earth's plasma sheet and tail lobe. About 300,000 measurements obtained in the plasma sheet and the lobe were compared for different levels of magnetic activity as well as different distances from the Earth. The data show that lobe and plasma sheet pressure balance very well. Even in the worst case they do not deviate by more than half of the variance in the data itself. Approximately constant total pressure was also seen during a quiet time pass when IRM traversed nearly the whole magnetotail in the vertical direction, from the southern hemisphere lobe through the neutral sheet and into the northern plasma sheet boundary layer

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

    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

  5. CONFIRMATORY SURVEY RESULTS FOR PORTIONS OF THE MATERIALS AND EQUIPMENT FROM UNITS 1 AND 2 AT THE HUMBOLDT BAY POWER PLANT, EUREKA, CALIFORNIA

    W.C. Adams

    2011-04-01

    The Pacific Gas & Electric Company (PG&E) operated the Humboldt Bay Power Plant (HBPP) Unit 3 nuclear reactor near Eureka, California under Atomic Energy Commission (AEC) provisional license number DPR-7. HBPP Unit 3 achieved initial criticality in February 1963 and began commercial operations in August 1963. Unit 3 was a natural circulation boiling water reactor with a direct-cycle design. This design eliminated the need for heat transfer loops and large containment structures. Also, the pressure suppression containment design permitted below-ground construction. Stainless steel fuel claddings were used from startup until cladding failures resulted in plant system contamination—zircaloy-clad fuel was used exclusively starting in 1965 eliminating cladding-related contamination. A number of spills and gaseous releases were reported during operations resulting in a range of mitigative activities (see ESI 2008 for details).

  6. ACTIVIDAD ENZIMATICA CATABOLICA EN LAS COMUNIDADES PLANCTONICAS Y BENTONICAS ASOCIADAS A LA ZONA DE MINIMO OXIGENO EN EL SISTEMA DE LA CORRIENTE DE HUMBOLDT.

    GONZALEZ SALDIA, RODRIGO RENE; GONZALEZ SALDIA, RODRIGO RENE

    2002-01-01

    En el Sistema de la Corriente de Humboldt (SCH), el flujo de energía que pasa a través del catabolismo de la comunidad expuesta a la condición de bajo oxígeno, ha sido escasamente investigado. Esta Tesis estudió por primera vez en el SCH, las actividades enzimáticas involucradas en el catabolismo anaeróbico y sus interrelaciones con el catabolismo aeróbico y el espectro de tamaños de la comunidad zooplanctónica (300 - 1000 μm), bentónica (> 500 μm), plancton de red (65 - 1000 μm) y micropl...

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

    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

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

    Arntz, W. E.; Gallardo, V. A.; Gutiérrez, D.; Isla, E.; Levin, L. A.; Mendo, J.; Neira, C.; Rowe, G. T.; Tarazona, J.; Wolff, M.

    2006-03-01

    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 immigrants. The autochthonous benthic fauna emigrates to deeper water or poleward, or suffers mortality. However, some local macrofaunal species experience important population proliferations, presumably due to improved oxygenation (in the southern hemisphere), higher temperature tolerance, reduced competition or the capability to use different food. Both these negative and positive effects of El Niño influence local artisanal fisheries and the livelihood of coastal populations. In the Humboldt Current system the hypoxic seafloor at outer shelf depths receives important flushing from the equatorial zone, causing havoc on the sulphur bacteria mats and immediate recolonisation of the sediments by mega- and macrofauna. Conversely, off California, the intruding equatorial water masses appear to have lower oxygen than ambient waters, and may cause oxygen deficiency at upper slope depths. Effects of this change have not been studied in detail, although shrimp and other

  9. 2006 Fulton County Georgia Lidar

    National Oceanic and Atmospheric Administration, Department of Commerce — The Light Detection and Ranging (LiDAR) LAS dataset is a survey of Fulton County. The Fulton County LiDAR Survey project area consists of approximately 690.5 square...

  10. Folded Sheet Versus Transparent Sheet Models for Human Symmetry Judgments

    Jacques Ninio

    2011-07-01

    Full Text Available As a contribution to the mysteries of human symmetry perception, reaction time data were collected on the detection of symmetry or repetition violations, in the context of short term visual memory studies. The histograms for reaction time distributions are rather narrow in the case of symmetry judgments. Their analysis was performed in terms of a simple kinetic model of a mental process in two steps, a slow one for the construction of the representation of the images to be compared, and a fast one, in the 50 ms range, for the decision. There was no need for an additional ‘mental rotation’ step. Symmetry seems to facilitate the construction step. I also present here original stimuli showing a color equalization effect across a symmetry axis, and its counterpart in periodic patterns. According to a “folded sheet model”, when a shape is perceived, the brain automatically constructs a mirror-image representation of the shape. Based in part on the reaction time analysis, I present here an alternative “transparent sheet” model in which the brain constructs a single representation, which can be accessed from two sides, thus generating simultaneously a pattern and its mirror-symmetric partner. Filtering processes, implied by current models of symmetry perception could intervene at an early stage, by nucleating the propagation of similar perceptual groupings in the two symmetric images.

  11. Carbon fluxes within the epipelagic zone of the Humboldt Current System off Chile: The significance of euphausiids and diatoms as key functional groups for the biological pump

    González, Humberto E.; Daneri, Giovanni; Iriarte, José L.; Yannicelli, Beatriz; Menschel, Eduardo; Barría, Claudio; Pantoja, Silvio; Lizárraga, Lorena

    2009-12-01

    The information from 54 drifting sediment traps deployed between 1997 and 2006 along the Humboldt Current System off Chile (from 19.9°S to 42.2°S) was analyzed to contribute to unveiling the recurrent global-ocean issue of the lack of relationship between gross primary production (GPP) and particulate organic carbon (POC) export below 50 m depth. When the proportion of carbon that effectively sinks is relatively low compared to the carbon being fixed through GPP, a significant amount (average of 32%) of the sinking organic matter is composed of diatoms, regardless of GPP rates. Such a fraction seems to be affected by the physiological state of phytoplankton. In contrast, when the fraction of carbon sinking is high relative to GPP, most of sinking organic matter is composed of euphausid faecal strings. Such a situation occurs at relatively low values of GPP and chlorophyll-a. Most of these high sinking rates of pellets and low phytoplankton biomass occur during summer, when physical conditions favour the presence of phytoplankton blooms, and when the GPP/Biomass ratio indicates healthy phytoplankton physiological conditions. All this evidence supports the assessment of the relevance of euphausiids as key species in the Humboldt Current System pointing to (i) the top-down control that euphausiids are capable of exerting over primary producer biomass, and (ii) euphausiids‘ paramount role on total organic carbon flux over the Concepción continental shelf, regarding both POC export to the sediments and possibly the channelling of GPP directly to higher trophic levels.

  12. Alexander von Humboldt y la cooperación transcontinental en la Geografía de las plantas: una nueva apreciación de la obra fitogeográfica de Francisco José de Caldas

    Alberto Gómez Gutiérrez

    2016-11-01

    Full Text Available Resumen  El Ensayo sobre la geografía de las plantas de Alexander von Humboldt ha trascendido como una de sus principales propuestas científicas, fundamento de lo que se conoce hoy como “biogeografía”. El origen de este concepto es difuso hasta el momento de la publicación simultánea de su obra en París y en Tübingen, en 1807. El presente artículo propone contrastar la primera versión manuscrita de este ensayo, elaborada en 1803 en Guayaquil y luego leída en 1805 en el Institut National de Paris, con la obra contemporánea del neogranadino Francisco José de Caldas, con quien convivió en Quito en el primer semestre de 1802.  Summary  Alexander von Humboldt´s Essay on the geography of plants has been perceived as one of his main scientific theories now referred as “biogeography”. The origin of this concept remains relatively vague up to the simultaneous publication of his work in Paris and Tübingen, in 1807. The present article intends a comparison of Humboldt´s first manuscript, signed in 1803 in Guayaquil and then read in 1805 in the Institut National de Paris, with the contemporary work of Francisco José de Caldas, with whom he lived in Quito during the first semester of 1802.  Résumé  L´Essai sur la géographie des plantes d´Alexander von Humboldt est à la base de sa principale théorie scientifique, généralement adressée aujourd´hui sous le nom de “biogéographie”. Néanmoins, l'origine du concept reste relativement vague jusqu'à la publication simultanée de son travail à Paris et à Tübingen, en 1807. Le présent article propose une comparaison du premier manuscrit, signé par Humboldt en 1803 à Guayaquil, puis lu en 1805 à l'Institut National de Paris, avec le travail contemporain de Francisco José de Caldas, avec qui Humboldt a vécu à Quito au cours du premier semestre de 1802.

  13. Tube sheet design for PFBR steam generator

    Chellapandi, P.; Chetal, S.C.; Bhoje, S.B.

    1991-01-01

    Top and bottom tube sheets of PFBR Steam Generators have been analysed with 3D and axisymmetric models using CASTEM Programs. Analysis indicates that the effects of piping reactions at the inlet/outlet nozzles on the primary stresses in the tube sheets are negligible and the asymmetricity of the deformation pattern introduced in the tube sheet by the presence of inlet/outlet and manhole nozzles is insignificant. The minimum tube sheet thicknesses for evaporator and reheater are 135 mm and 75 mm respectively. Further analysis has indicated the minimum fillet radius at the junction of tube sheet and dished end should be 20 mm. Simplified methodology has been developed to arrive at the number of thermal baffles required to protect the tube sheet against fatigue damage due to thermal transient. This method has been applied to PFBR steam generators to determine the required number of thermal baffles. For protecting the bottom tube sheet of evaporator against the thermal shock due to feed water and secondary pump trip, one thermal shield is found to be sufficient. Further analysis is required to decide upon the actual number to take care of the severe thermal transient, following the event of sudden dumping of water/steam, immediately after the sodium-water reaction. (author)

  14. 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

    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.

  15. Thermomechanical processing of plasma sprayed intermetallic sheets

    Hajaligol, Mohammad R.; Scorey, Clive; Sikka, Vinod K.; Deevi, Seetharama C.; Fleischhauer, Grier; Lilly, Jr., A. Clifton; German, Randall M.

    2001-01-01

    A powder metallurgical process of preparing a sheet from a powder having an intermetallic alloy composition such as an iron, nickel or titanium aluminide. The sheet can be manufactured into electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 4 to 32% Al, and optional additions such as .ltoreq.1% Cr, .gtoreq.0.05% Zr .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Ni, .ltoreq.0.75% C, .ltoreq.0.1% B, .ltoreq.1% submicron oxide particles and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, and/or .ltoreq.3% Cu. The process includes forming a non-densified metal sheet by consolidating a powder having an intermetallic alloy composition such as by roll compaction, tape casting or plasma spraying, forming a cold rolled sheet by cold rolling the non-densified metal sheet so as to increase the density and reduce the thickness thereof and annealing the cold rolled sheet. The powder can be a water, polymer or gas atomized powder which is subjecting to sieving and/or blending with a binder prior to the consolidation step. After the consolidation step, the sheet can be partially sintered. The cold rolling and/or annealing steps can be repeated to achieve the desired sheet thickness and properties. The annealing can be carried out in a vacuum furnace with a vacuum or inert atmosphere. During final annealing, the cold rolled sheet recrystallizes to an average grain size of about 10 to 30 .mu.m. Final stress relief annealing can be carried out in the B2 phase temperature range.

  16. Humboldt in Copenhagen

    Jørgensen, Claus Møller

    2012-01-01

    Claus Møller Jørgensen analyzes the dynamics behind the specialization that took place in the nineteenth-century humanities at the University of Copenhagen. The humanities liberated themselves from an inferior position to the higher faculties by upgrading the status of classical studies and the e...

  17. HUMBOLDT alignment editor

    Horak, J.; Jurikovska, L.; Umlauf, M.; Jezek, J.; Hanzlova, M.; Zlatanova, S.

    2011-01-01

    The process of data harmonization starts with a description of data sources and mapping of differences among heterogeneous source and target data sets. The semantic differences usually include incompatible data schemas (structures, different data types, domains etc.) and differences in content

  18. Plasma sheet behavior during substorms

    Hones, E.W. Jr.

    1983-01-01

    Auroral or magnetic substorms are periods of enhanced auroral and geomagnetic activity lasting one to a few hours that signify increased dissipation of energy from the magnetosphere to the earth. Data acquired during the past decade from satellites in the near-earth sector of the magnetotail have suggested that during a substorm part of the plasma sheet is severed from earth by magnetic reconnection, forming a plasmoid, i.e., a body of plasma and closed magnetic loops, that flows out of the tail into the solar wind, thus returning plasma and energy that have earlier been accumulated from the solar wind. Very recently this picture has been dramatically confirmed by observations, with the ISEE 3 spacecraft in the magnetotail 220 R/sub E/ from earth, of plasmoids passing that location in clear delayed response to substorms. It now appears that plasmoid release is a fundamental process whereby the magnetosphere gives up excess stored energy and plasma, much like comets are seen to do, and that the phenomena of the substorm seen at earth are a by-product of that fundamental process

  19. Radiation dominated relativistic current sheets

    Jaroschek, C.H.

    2008-01-01

    Relativistic Current Sheets (RCS) feature plasma instabilities considered as potential key to magnetic energy dissipation and non-thermal particle generation in Poynting flux dominated plasma flows. We show in a series of kinetic plasma simulations that the physical nature of non-linear RCS evolution changes in the presence of incoherent radiation losses: In the ultra-relativistic regime (i.e. magnetization parameter sigma = 104 defined as the ratio of magnetic to plasma rest frame energy density) the combination of non-linear RCS dynamics and synchrotron emission introduces a temperature anisotropy triggering the growth of the Relativistic Tearing Mode (RTM). As direct consequence the RTM prevails over the Relativistic Drift Kink (RDK) Mode as competitive RCS instability. This is in contrast to the previously studied situation of weakly relativistic RCS (sigma ∼ 1) where the RDK is dominant and most of the plasma is thermalized. The simulations witness the typical life cycle of ultra-relativistic RCS evolving from a violent radiation induced collapse towards a radiation quiescent state in rather classical Sweet-Parker topology. Such a transition towards Sweet-Parker configuration in the late non-linear evolution has immediate consequences for the efficiency of magnetic energy dissipation and non-thermal particle generation. Ceasing dissipation rates directly affect our present understanding of non-linear RCS evolution in conventional striped wind scenarios. (author)

  20. World-sheet gauge fields in superstrings

    Porrati, M.; Tomboulis, E.T.

    1989-01-01

    We investigate the introduction of world-sheet 2-dimensional gauge fields in a manner consistent with world-sheet supersymmetry. We obtain the effective string action resulting from the exact integration over the world-sheet gauge fields to show that it generally describes string models with spontaneous breaking of gauge symmetries with continuous breaking parameters. We examine the question of spacetime supersymmetry spontaneous breaking, and show that breaking with continuous, in particular arbitrarily small breaking parameters does not occur; only breaking for discrete values of parameters is possible. (orig.)

  1. Bifurcation of Jovian magnetotail current sheet

    P. L. Israelevich

    2006-07-01

    Full Text Available Multiple crossings of the magnetotail current sheet by a single spacecraft give the possibility to distinguish between two types of electric current density distribution: single-peaked (Harris type current layer and double-peaked (bifurcated current sheet. Magnetic field measurements in the Jovian magnetic tail by Voyager-2 reveal bifurcation of the tail current sheet. The electric current density possesses a minimum at the point of the Bx-component reversal and two maxima at the distance where the magnetic field strength reaches 50% of its value in the tail lobe.

  2. Bifurcation of Jovian magnetotail current sheet

    P. L. Israelevich

    2006-07-01

    Full Text Available Multiple crossings of the magnetotail current sheet by a single spacecraft give the possibility to distinguish between two types of electric current density distribution: single-peaked (Harris type current layer and double-peaked (bifurcated current sheet. Magnetic field measurements in the Jovian magnetic tail by Voyager-2 reveal bifurcation of the tail current sheet. The electric current density possesses a minimum at the point of the Bx-component reversal and two maxima at the distance where the magnetic field strength reaches 50% of its value in the tail lobe.

  3. Water quality of streams in Johnson County, Kansas, 2002-07

    Rasmussen, T.J.

    2009-01-01

    Water quality of streams in Johnson County, Kansas was evaluated from October 2002 through December 2007 in a cooperative study between the U.S. Geological Survey and the Johnson County Stormwater Management Program. Water quality at 42 stream sites, representing urban and rural basins, was characterized by evaluating benthic macroinvertebrates, water (discrete and continuous data), and/or streambed sediment. Point and nonpoint sources and transport were described for water-quality constituents including suspended sediment, dissolved solids and major ions, nutrients (nitrogen and phosphorus), indicator bacteria, pesticides, and organic wastewater and pharmaceutical compounds. The information obtained from this study is being used by city and county officials to develop effective management plans for protecting and improving stream quality. This fact sheet summarizes important results from three comprehensive reports published as part of the study and available on the World Wide Web at http://ks.water.usgs.gov/Kansas/studies/qw/joco/. ?? 2009 ASCE.

  4. fibrin–chitosan–sodium alginate composite sheet

    sodium alginate composite (F–C–SA) in sheet form. F–C–SA composite was prepared and characterized for its physicochemical properties like water absorption capacity, surface morphology, FTIR spectra and mechanical properties.

  5. Single clay sheets inside electrospun polymer nanofibers

    Sun, Zhaohui

    2005-03-01

    Nanofibers were prepared from polymer solution with clay sheets by electrospinning. Plasma etching, as a well controlled process, was used to supply electrically excited gas molecules from a glow discharge. To reveal the structure and arrangement of clay layers in the polymer matrix, plasma etching was used to remove the polymer by controlled gasification to expose the clay sheets due to the difference in reactivity. The shape, flexibility, and orientation of clay sheets were studied by transmission and scanning electron microscopy. Additional quantitative information on size distribution and degree of exfoliation of clay sheets were obtained by analyzing electron micrograph of sample after plasma etching. Samples in various forms including fiber, film and bulk, were thinned by plasma etching. Morphology and dispersion of inorganic fillers were studied by electron microscopy.

  6. HIV/AIDS Clinical Trials Fact Sheet

    ... AIDS Drugs Clinical Trials Apps skip to content HIV Overview Home Understanding HIV/AIDS Fact Sheets HIV/ ... 4 p.m. ET) Send us an email HIV/AIDS Clinical Trials Last Reviewed: August 25, 2017 ...

  7. Advancing Concentrating Solar Power Research (Fact Sheet)

    None, None

    2014-02-01

    Researchers at the National Renewable Energy Laboratory (NREL) provide scientific, engineering, and analytical expertise to help advance innovation in concentrating solar power (CSP). This fact sheet summarizes how NREL is advancing CSP research.

  8. Greenland Radar Ice Sheet Thickness Measurements

    National Aeronautics and Space Administration — Two 150-MHz coherent radar depth sounders were developed and flown over the Greenland ice sheet to obtain ice thickness measurements in support of PARCA...

  9. Nanotechnology for Site Remediation: Fact Sheet

    This fact sheet presents a snapshot of nanotechnology and its current uses in remediation. It presents information to help site project managers understand the potential applications of this group of technologies at their sites.

  10. Hydrologic Outlets of the Greenland Ice Sheet

    National Aeronautics and Space Administration — The Hydrologic Outlets of the Greenland Ice Sheet data set contains GIS point shapefiles that include 891 observed and potential hydrologic outlets of the Greenland...

  11. Fact sheet: Ethanol from corn

    NONE

    1999-05-31

    This fact sheet is intended to provide an overview of the advantages of ethanol from corn, emphasizing ethanol`s contribution to environmental protection and sustainable agriculture. Ethanol, an alternative fuel used as an octane enhancer is produced through the conversion of starch to sugars by enzymes, and fermentation of these sugars to ethanol by yeast. The production process may involve wet milling or dry milling. Both these processes produce valuable by-products, in addition to ethanol and carbon dioxide. Ethanol contains about 32,000 BTU per litre. It is commonly believed that using state-of-the-art corn farming and corn processing processes, the amount of energy contained in ethanol and its by-products would be more than twice the energy required to grow and process corn into ethanol. Ethanol represents the third largest market for Ontario corn, after direct use as animal feed and wet milling for starch, corn sweetener and corn oil. The environmental consequences of using ethanol are very significant. It is estimated that a 10 per cent ethanol blend in gasoline would result in a 25 to 30 per cent decrease in carbon monoxide emissions, a 6 to 10 per cent decrease in net carbon dioxide, a slight increase in nitrous oxide emissions which, however, would still result in an overall decrease in ozone formation, since the significant reduction in carbon monoxide emissions would compensate for any slight increase in nitrous oxide. Volatile organic compounds emission would also decrease by about 7 per cent with a 10 per cent ethanol blend. High level blends could reduce VOCs production by as much as 30 per cent. 7 refs.

  12. Energized Oxygen : Speiser Current Sheet Bifurcation

    George, D. E.; Jahn, J. M.

    2017-12-01

    A single population of energized Oxygen (O+) is shown to produce a cross-tail bifurcated current sheet in 2.5D PIC simulations of the magnetotail without the influence of magnetic reconnection. Treatment of oxygen in simulations of space plasmas, specifically a magnetotail current sheet, has been limited to thermal energies despite observations of and mechanisms which explain energized ions. We performed simulations of a homogeneous oxygen background, that has been energized in a physically appropriate manner, to study the behavior of current sheets and magnetic reconnection, specifically their bifurcation. This work uses a 2.5D explicit Particle-In-a-Cell (PIC) code to investigate the dynamics of energized heavy ions as they stream Dawn-to-Dusk in the magnetotail current sheet. We present a simulation study dealing with the response of a current sheet system to energized oxygen ions. We establish a, well known and studied, 2-species GEM Challenge Harris current sheet as a starting point. This system is known to eventually evolve and produce magnetic reconnection upon thinning of the current sheet. We added a uniform distribution of thermal O+ to the background. This 3-species system is also known to eventually evolve and produce magnetic reconnection. We add one additional variable to the system by providing an initial duskward velocity to energize the O+. We also traced individual particle motion within the PIC simulation. Three main results are shown. First, energized dawn- dusk streaming ions are clearly seen to exhibit sustained Speiser motion. Second, a single population of heavy ions clearly produces a stable bifurcated current sheet. Third, magnetic reconnection is not required to produce the bifurcated current sheet. Finally a bifurcated current sheet is compatible with the Harris current sheet model. This work is the first step in a series of investigations aimed at studying the effects of energized heavy ions on magnetic reconnection. This work differs

  13. Copper contamination in thin stainless steel sheet

    Holbert, R.K. Jr.; Dobbins, A.G.; Bennett, R.K. Jr.

    1986-01-01

    The standard welding technique used at Oak Ridge Y-12 Plant for joining thin stainless sheet is the gas tungsten arc (GTA) welding process. One of the reoccurring problems with the sheet welds is surface cracking in the heat-affected zone (HAZ). Metallography shows that the cracks are only about 0.05 mm (0.002 in.) deep which is significant in a 0.25 mm (0.01 in.) thick sheet. Thus, welding requirements do not permit any surfacing cracking as detected by a fluorescent dye penetrant test conducted on every part after welding. Surface cracks have been found in both of the two most common weld designs in the thin sheet fabricated at the Oak Ridge Y-12 Plant. These butt joints are welded between two 0.25 mm thick stainless steel sheets and a tube with eyelet welded to a 25 mm (0.98 in.) thick sheet. The weld between the two sheets is made on a semiautomatic seam welding unit, whereas the tube-to-eyelet-to-sheet welds are done manually. The quality of both welds is very dependent on the welding procedure and the way the parts are placed in the weld fixturing. Metallographic examination has indicated that some welded parts with surface cracking in the weld region had copper particles on the surface, and the question of copper contamination has been raised. With the aid of a scanning electron microscope and an electron microprobe, the existence of copper in an around the surface cracks has been verified. The copper is on the surface of the parts prior to welding in the form of small dust particles

  14. Balance of the West Antarctic Ice Sheet

    2002-01-01

    For several decades, measurements of the West Antarctic Ice Sheet showed it to be retreating rapidly. But new data derived from satellite-borne radar sensors show the ice sheet to be growing. Changing Antarctic ice sheets remains an area of high scientific interest, particularly in light of recent global warming concerns. These new findings are significant because scientists estimate that sea level would rise 5-6 meters (16-20 feet) if the ice sheet collapsed into the sea. Do these new measurements signal the end of the ice sheet's 10,000-year retreat? Or, are these new satellite data simply much more accurate than the sparse ice core and surface measurements that produced the previous estimates? Another possibility is that the ice accumulation may simply indicate that the ice sheet naturally expands and retreats in regular cycles. Cryologists will grapple with these questions, and many others, as they examine the new data. The image above depicts the region of West Antarctica where scientists measured ice speed. The fast-moving central ice streams are shown in red. Slower tributaries feeding the ice streams are shown in blue. Green areas depict slow-moving, stable areas. Thick black lines depict the areas that collect snowfall to feed their respective ice streams. Reference: Ian Joughin and Slawek Tulaczyk Science Jan 18 2002: 476-480. Image courtesy RADARSAT Antarctic Mapping Project

  15. Antibubbles and fine cylindrical sheets of air

    Beilharz, D.

    2015-08-14

    Drops impacting at low velocities onto a pool surface can stretch out thin hemispherical sheets of air between the drop and the pool. These air sheets can remain intact until they reach submicron thicknesses, at which point they rupture to form a myriad of microbubbles. By impacting a higher-viscosity drop onto a lower-viscosity pool, we have explored new geometries of such air films. In this way we are able to maintain stable air layers which can wrap around the entire drop to form repeatable antibubbles, i.e. spherical air layers bounded by inner and outer liquid masses. Furthermore, for the most viscous drops they enter the pool trailing a viscous thread reaching all the way to the pinch-off nozzle. The air sheet can also wrap around this thread and remain stable over an extended period of time to form a cylindrical air sheet. We study the parameter regime where these structures appear and their subsequent breakup. The stability of these thin cylindrical air sheets is inconsistent with inviscid stability theory, suggesting stabilization by lubrication forces within the submicron air layer. We use interferometry to measure the air-layer thickness versus depth along the cylindrical air sheet and around the drop. The air film is thickest above the equator of the drop, but thinner below the drop and up along the air cylinder. Based on microbubble volumes, the thickness of the cylindrical air layer becomes less than 100 nm before it ruptures.

  16. Buckling Behavior of Substrate Supported Graphene Sheets

    Kuijian Yang

    2016-01-01

    Full Text Available The buckling of graphene sheets on substrates can significantly degrade their performance in materials and devices. Therefore, a systematic investigation on the buckling behavior of monolayer graphene sheet/substrate systems is carried out in this paper by both molecular mechanics simulations and theoretical analysis. From 70 simulation cases of simple-supported graphene sheets with different sizes under uniaxial compression, two different buckling modes are investigated and revealed to be dominated by the graphene size. Especially, for graphene sheets with length larger than 3 nm and width larger than 1.1 nm, the buckling mode depends only on the length/width ratio. Besides, it is revealed that the existence of graphene substrate can increase the critical buckling stress and strain to 4.39 N/m and 1.58%, respectively, which are about 10 times those for free-standing graphene sheets. Moreover, for graphene sheets with common size (longer than 20 nm, both theoretical and simulation results show that the critical buckling stress and strain are dominated only by the adhesive interactions with substrate and independent of the graphene size. Results in this work provide valuable insight and guidelines for the design and application of graphene-derived materials and nano-electromechanical systems.

  17. Antibubbles and fine cylindrical sheets of air

    Beilharz, D.; Guyon, A.; Li, E.  Q.; Thoraval, M.-J.; Thoroddsen, Sigurdur T

    2015-01-01

    Drops impacting at low velocities onto a pool surface can stretch out thin hemispherical sheets of air between the drop and the pool. These air sheets can remain intact until they reach submicron thicknesses, at which point they rupture to form a myriad of microbubbles. By impacting a higher-viscosity drop onto a lower-viscosity pool, we have explored new geometries of such air films. In this way we are able to maintain stable air layers which can wrap around the entire drop to form repeatable antibubbles, i.e. spherical air layers bounded by inner and outer liquid masses. Furthermore, for the most viscous drops they enter the pool trailing a viscous thread reaching all the way to the pinch-off nozzle. The air sheet can also wrap around this thread and remain stable over an extended period of time to form a cylindrical air sheet. We study the parameter regime where these structures appear and their subsequent breakup. The stability of these thin cylindrical air sheets is inconsistent with inviscid stability theory, suggesting stabilization by lubrication forces within the submicron air layer. We use interferometry to measure the air-layer thickness versus depth along the cylindrical air sheet and around the drop. The air film is thickest above the equator of the drop, but thinner below the drop and up along the air cylinder. Based on microbubble volumes, the thickness of the cylindrical air layer becomes less than 100 nm before it ruptures.

  18. 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

    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 (oxygen concentration and microplanktonic biomass in the oxygen minimum zone and adjacent areas of the Humboldt Current System water column. Our results demonstrate significant potential enzymatic activity of 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.

  19. 2009 SCDRN Lidar: Florence County

    National Oceanic and Atmospheric Administration, Department of Commerce — The South Carolina Department of Natural Resources (SCDNR) contracted with Sanborn to provide LiDAR mapping services for Florence County, SC. Utilizing multi-return...

  20. Allegheny County Soil Type Areas

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains soil type and soil classification, by area. Additional info at: http://mcdc.cas.psu.edu/datawiz.htm;...

  1. Allegheny County Property Assessment Appeals

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Lists property assessment appeals filed and heard with the Board of Property Assessment Appeals and Review (BPAAR) and the hearing results, for tax years 2015 to...

  2. Allegheny County Basin Outlines Map

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This basins dataset was created to initiate regional watershed approaches with respect to sewer rehabilitation. If viewing this description on the Western...

  3. 2009 SCDNR Charleston County Lidar

    National Oceanic and Atmospheric Administration, Department of Commerce — Photoscience completed the original collection and classification of the multiple return LiDAR of Charleston County, South Carolina in the winter of 2006-2007. In...

  4. Allegheny County Certified MWDBE Businesses

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — According to the Federal Department of Transportation, Disadvantaged Business Enterprises (DBE) are for-profit small business concerns where socially and...

  5. County Boundaries with Shorelines (National)

    Department of Transportation — County boundaries with shorelines cut in (NTAD). The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and...

  6. Allegheny County Land Cover Areas

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — The Land Cover dataset demarcates 14 land cover types by area; such as Residential, Commercial, Industrial, Forest, Agriculture, etc. If viewing this description on...

  7. 2009 Chatham County Georgia Lidar

    National Oceanic and Atmospheric Administration, Department of Commerce — LiDAR generated point cloud acquired in spring 2009 for Chatham County, Georgia for the Metropolitan Planning Commission. The data are classified as follows: Class 1...

  8. 2014 Mobile County, AL Lidar

    National Oceanic and Atmospheric Administration, Department of Commerce — Atlantic was contracted to acquire high resolution topographic LiDAR (Light Detection and Ranging) data located in Mobile County, Alabama. The intent was to collect...

  9. Uninsured Young Adults by County

    U.S. Department of Health & Human Services — This data file indicates the estimated number of uninsured individuals ages 19-25 in each U.S. county. These individuals may be eligible to join their parents health...

  10. Allegheny County Toxics Release Inventory

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — The Toxics Release Inventory (TRI) data provides information about toxic substances released into the environment or managed through recycling, energy recovery, and...

  11. Allegheny County Building Footprint Locations

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains photogrammetrically compiled roof outlines of buildings. All near orthogonal corners are square. Buildings that are less than 400 square feet...

  12. County business patterns, 1996 : Nevada

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  13. County business patterns, 1997 : Wisconsin

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  14. County business patterns, 1997 : Arizona

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  15. County business patterns, 1997 : Wyoming

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  16. County business patterns, 1997 : Minnesota

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  17. County business patterns, 1996 : Colorado

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  18. County business patterns, 1996 : Montana

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  19. County business patterns, 1996 : Nebraska

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  20. County business patterns, 1996 : Kentucky

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  1. County business patterns, 1996 : Idaho

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  2. County business patterns, 1997 : Alabama

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  3. County business patterns, 1997 : Maryland

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  4. County business patterns, 1997 : Maine

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  5. County business patterns, 1996 : Utah

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  6. County business patterns, 1996 : Oklahoma

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  7. County business patterns, 1996 : Alaska

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  8. County business patterns, 1997 : Kansas

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  9. County business patterns, 1997 : Florida

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  10. County business patterns, 1997 : Oklahoma

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  11. County business patterns, 1997 : Michigan

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  12. County business patterns, 1997 : Tennessee

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  13. County business patterns, 1997 : Kentucky

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  14. County business patterns, 1996 : Louisiana

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  15. County business patterns, 1997 : Texas

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  16. County business patterns, 1997 : Virginia

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  17. County business patterns, 1996 : Delaware

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  18. County business patterns, 1997 : Idaho

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  19. County business patterns, 1997 : Nevada

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  20. County business patterns, 1996 : Wisconsin

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  1. County business patterns, 1996 : Arkansas

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  2. County business patterns, 1996 : Florida

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  3. County business patterns, 1997 : Mississippi

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  4. County business patterns, 1996 : Missouri

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  5. County business patterns, 1996 : Maryland

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  6. County business patterns, 1997 : Hawaii

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  7. County business patterns, 1996 : Ohio

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  8. County business patterns, 1996 : Alabama

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  9. County business patterns, 1997 : Alaska

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  10. County business patterns, 1996 : Iowa

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  11. County business patterns, 1996 : Georgia

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  12. County business patterns, 1996 : Michigan

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  13. County business patterns, 1996 : Texas

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  14. County business patterns, 1997 : Nebraska

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  15. County business patterns, 1997 : Massachusetts

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  16. County business patterns, 1997 : Indiana

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  17. County business patterns, 1996 : Pennsylvania

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  18. County business patterns, 1997 : Arkansas

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  19. County business patterns, 1997 : Colorado

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  20. County business patterns, 1996 : Arizona

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  1. County business patterns, 1997 : Oregon

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  2. County business patterns, 1997 : Georgia

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  3. County business patterns, 1997 : Missouri

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  4. County business patterns, 1997 : Illinois

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  5. County business patterns, 1997 : Utah

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  6. County business patterns, 1996 : Kansas

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  7. County business patterns, 1996 : Maine

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  8. County business patterns, 1997 : Pennsylvania

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  9. County business patterns, 1996 : Tennessee

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  10. County business patterns, 1997 : Ohio

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  11. County business patterns, 1996 : Vermont

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  12. County business patterns, 1996 : Wyoming

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  13. County business patterns, 1996 : Illinois

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  14. County business patterns, 1996 : Virginia

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  15. County business patterns, 1997 : Iowa

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  16. County business patterns, 1997 : Connecticut

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  17. County business patterns, 1996 : Hawaii

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  18. County business patterns, 1997 : Washington

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  19. County business patterns, 1997 : Vermont

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  20. County business patterns, 1996 : Oregon

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  1. County business patterns, 1996 : Minnesota

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  2. County business patterns, 1996 : California

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  3. County business patterns, 1996 : Indiana

    1998-11-01

    County Business Patterns is an annual series that : provides subnational economic data by industry. The series : is useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  4. County business patterns, 1997 : Delaware

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  5. County business patterns, 1997 : Montana

    1999-09-01

    County Business Patterns is an annual series that provides : subnational economic data by industry. The series is : useful for studying the economic activity of small areas; : analyzing economic changes over time; and as a benchmark : for statistical...

  6. Allegheny County WIC Vendor Locations

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains the locations of Women, Infants, and Children (WIC) program vendors. If viewing this description on the Western Pennsylvania Regional Data...

  7. 2009 SCDNR Horry County Lidar

    National Oceanic and Atmospheric Administration, Department of Commerce — Sanborn Map Company completed the original classification of the multiple return LiDAR of Horry County, South Carolina in 2009. In 2013, Dewberry was tasked with...

  8. Soils - Volusia County Soils (Polygons)

    NSGIC Local Govt | GIS Inventory — Soils: 1:24000 SSURGO Map. Polygon boundaries of Soils in Volusia County, downloaded from SJRWMD and created by NRCS and SJRWMD. This data set is a digital version...

  9. Allegheny County Environmental Justice Areas

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Environmental Justice areas in this guide have been defined by the Pennsylvania Department of Environmental Protection. The Department defines an environmental...

  10. Allegheny County Illegal Dump Sites

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — The Illegal Dump Site dataset includes information on illegal dump sites, their type of trash, and the estimate tons of trash at each site. The information was...

  11. Allegheny County Wooded Area Boundaries

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset demarcates stands of trees (coniferous and deciduous) too numerous to plot as individual trees. The area is delineated following a generalized line...

  12. 17 CFR 210.6-04 - Balance sheets.

    2010-04-01

    ... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Balance sheets. 210.6-04... sheets. This rule is applicable to balance sheets filed by registered investment companies except for... of this part. Balance sheets filed under this rule shall comply with the following provisions: Assets...

  13. 76 FR 14372 - Glenn/Colusa County Resource Advisory Committee

    2011-03-16

    ... Committee (RAC) will meet in Willows, California. Agenda items covered include: (1) Introductions, (2) Approve Minutes, (3) RAC Admin Updates, (4) Public Comment, (5) New Project Proposals, (6) Project Updates... Office, 825 N. Humboldt Ave., Willows, CA 95988. Individuals who wish to speak or propose a project or...

  14. 75 FR 8916 - Glenn/Colusa County Resource Advisory Committee

    2010-02-26

    ...) Introductions, (2) Approve Minutes, (3) RAC Admin Updates, (4) Public Comment, (5) FY08 and FY09 New Project... National Forest Supervisor's Office, 825 N. Humboldt Ave., Willows, CA 95988. Individuals who wish to speak... . SUPPLEMENTARY INFORMATION: The meeting will be open to the public. Committee discussion is limited to Forest...

  15. Best Manufacturing Practices. Report of Survey Conducted at Stafford County Public Schools, Stafford County, VA

    1994-01-01

    During the week of August 8, 1994, a Best Manufacturing Practices (BMP) survey was conducted at the Stafford County Public Schools located in Stafford County, Virginia, considered one of the fastest growing counties in the state...

  16. 2007 Lake County Board of County Commissioners Topographic LiDAR: Lake County, Florida

    National Oceanic and Atmospheric Administration, Department of Commerce — This metadata document describes the LiDAR point data in LAS format produced by Kucera covering the project area of Lake County, FL. The data produced is...

  17. Best Management Practice, Fact Sheet 2. Sheet Flow to Open Space

    Sample, David; Doumar, Lia

    2013-01-01

    This publication explains what sheet flow to open space is, where and how it is used, their limitations, routine and nonroutine maintenance, expected costs, and a glossary of terms. This fact sheet is one of a 15-part series on urban stormwater management practices.

  18. Bessel light sheet structured illumination microscopy

    Noshirvani Allahabadi, Golchehr

    Biomedical study researchers using animals to model disease and treatment need fast, deep, noninvasive, and inexpensive multi-channel imaging methods. Traditional fluorescence microscopy meets those criteria to an extent. Specifically, two-photon and confocal microscopy, the two most commonly used methods, are limited in penetration depth, cost, resolution, and field of view. In addition, two-photon microscopy has limited ability in multi-channel imaging. Light sheet microscopy, a fast developing 3D fluorescence imaging method, offers attractive advantages over traditional two-photon and confocal microscopy. Light sheet microscopy is much more applicable for in vivo 3D time-lapsed imaging, owing to its selective illumination of tissue layer, superior speed, low light exposure, high penetration depth, and low levels of photobleaching. However, standard light sheet microscopy using Gaussian beam excitation has two main disadvantages: 1) the field of view (FOV) of light sheet microscopy is limited by the depth of focus of the Gaussian beam. 2) Light-sheet images can be degraded by scattering, which limits the penetration of the excitation beam and blurs emission images in deep tissue layers. While two-sided sheet illumination, which doubles the field of view by illuminating the sample from opposite sides, offers a potential solution, the technique adds complexity and cost to the imaging system. We investigate a new technique to address these limitations: Bessel light sheet microscopy in combination with incoherent nonlinear Structured Illumination Microscopy (SIM). Results demonstrate that, at visible wavelengths, Bessel excitation penetrates up to 250 microns deep in the scattering media with single-side illumination. Bessel light sheet microscope achieves confocal level resolution at a lateral resolution of 0.3 micron and an axial resolution of 1 micron. Incoherent nonlinear SIM further reduces the diffused background in Bessel light sheet images, resulting in

  19. The transposition of the balance sheet to financial and functional balance sheet. Research and development

    Liana GĂDĂU

    2015-09-01

    Full Text Available As the title suggests, through this paper we want to highlight the necessity of treating again the content and the form of the balance sheet in order to adapt it to a more efficient analysis, this way surpassing the informational valences of the classic balance sheet. The functional and the financial balance sheet will be taken into account. These models of balance sheet permit the complex analyses regarding the solvability or the bankruptcy risk of an enterprise to take place, and also other analyses, like the analysis of the structure and the financial/ functional equilibrium, the analysis of the company on operating cycles and their role in the functioning of the company. Through the particularities offered by each of these two models of balance sheet, we want to present the advantages of a superior informing. This content of this material is based on a vast investigation of the specialized literature.

  20. Kinematics, mechanics, and potential earthquake hazards for faults in Pottawatomie County, Kansas, USA

    Ohlmacher, G.C.; Berendsen, P.

    2005-01-01

    Many stable continental regions have subregions with poorly defined earthquake hazards. Analysis of minor structures (folds and faults) in these subregions can improve our understanding of the tectonics and earthquake hazards. Detailed structural mapping in Pottawatomie County has revealed a suite consisting of two uplifted blocks aligned along a northeast trend and surrounded by faults. The first uplift is located southwest of the second. The northwest and southeast sides of these uplifts are bounded by northeast-trending right-lateral faults. To the east, both uplifts are bounded by north-trending reverse faults, and the first uplift is bounded by a north-trending high-angle fault to the west. The structural suite occurs above a basement fault that is part of a series of north-northeast-trending faults that delineate the Humboldt Fault Zone of eastern Kansas, an integral part of the Midcontinent Rift System. The favored kinematic model is a contractional stepover (push-up) between echelon strike-slip faults. Mechanical modeling using the boundary element method supports the interpretation of the uplifts as contractional stepovers and indicates that an approximately east-northeast maximum compressive stress trajectory is responsible for the formation of the structural suite. This stress trajectory suggests potential activity during the Laramide Orogeny, which agrees with the age of kimberlite emplacement in adjacent Riley County. The current stress field in Kansas has a N85??W maximum compressive stress trajectory that could potentially produce earthquakes along the basement faults. Several epicenters of seismic events (