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Sample records for hudson papenfuss recolectada

  1. TREATMENTS OF PLASMA CORONA RADIATION ON SEAWEED Gracilaria Verrucosa (HUDSON PAPENFUSS: Efforts to increase growth and biomass

    Directory of Open Access Journals (Sweden)

    Filemon Jalu N Putra

    2014-12-01

    Full Text Available Gracilaria verrucosa (Hudson Papenfuss has great potential to be farmed in the water resources in Indonesia. As natural resource, the weed has a major contribution in the field of industry both for human food and health. Efforts have been done intensively to increase the production capacity to meet the market demand especially gelatin, both national and international market. One of them is the application of plasma corona irradiation treatments on the weed to improve developmental pathways. The concept of plasma irradiation performed at atmospheric conditions may impact on nitrogen intrusion pathway that is important element in the growth of the weed. The aims of this study are to assess the potential impact of plasma irradiation in improving the growth of G. verrucosa and thus increase their biomass production. The treatments were done using five different duration of plasma irradiation, which were 2, 4, 6, 8, and 10 minutes at a 0,5mA stable source of voltage and 8kV of electrical current. Observations of growth rate include thallus length and biomass of G. verrucosa , that was observed every week for 28 days. The result showed that the growth of weed exhibited better than those without radiation. The best growth was reached in the group of treatment of 8 minutes irradiation, exhibited 65,91g of biomass and 9.5515% growth rate and length of thallus reached 22,33 cm and daily growth rate of 2.9759%. The lowest growth of the weed occurred in the treatment of 10 minutes irradiation, which was 44,82 g biomass, 8.123% growth rate, 17,13 cm thallus length with a daily growth rate of 1.9942%

  2. Researcher Interview: Tom Hudson

    Science.gov (United States)

    Tom Hudson, M.D., President and Scientific Director of the Ontario Institute for Cancer Research, describes the International Cancer Genome Consortium (ICGC), which brings together cancer genomic data and research from across the world.

  3. Hudson 3 essentials

    CERN Document Server

    Meinholz, Lloyd

    2013-01-01

    A practical guide, packed with illustrations, that will help you become proficient with Hudson and able to utilize it how you want.If you are a Java developer or administrator who would to like automate some of the mundane work required to build and test software and improve software quality, this is the book for you. If you are a development manager or tester, you can also benefit from learning how Hudson works by gaining some insight into test results and historical trends.

  4. Variations in morphology and PSII photosynthetic capabilities during the early development of tetraspores of Gracilaria vermiculophylla (Ohmi) Papenfuss (Gracilariales, Rhodophyta)

    Science.gov (United States)

    2010-01-01

    Background Red algae are primitive photosynthetic eukaryotes, whose spores are ideal subjects for studies of photosynthesis and development. Although the development of red alga spores has received considerable research attention, few studies have focused on the detailed morphological and photosynthetic changes that occur during the early development of tetraspores of Gracilaria vermiculophylla (Ohmi) Papenfuss (Gracilariales, Rhodophyta). Herein, we documented these changes in this species of red algae. Results In the tetraspores, we observed two types of division, cruciate and zonate, and both could develop into multicellular bodies (disks). During the first 84 hours, tetraspores divided several times, but the diameter of the disks changed very little; thereafter, the diameter increased significantly. Scanning electron microscopy observations and analysis of histological sections revealed that the natural shape of the disk remains tapered over time, and the erect frond grows from the central protrusion of the disk. Cultivation of tissue from excised disks demonstrated that the central protrusion of the disk is essential for initiation of the erect frond. Photosynthetic (i.e., PSII) activities were measured using chlorophyll fluorescence analysis. The results indicated that freshly released tetraspores retained limited PSII photosynthetic capabilities; when the tetraspores attached to a substrate, those capabilities increased significantly. In the disk, the PSII activity of both marginal and central cells was similar, although some degree of morphological polarity was present; the PSII photosynthetic capabilities in young germling exhibited an apico-basal gradient. Conclusions Attachment of tetraspores to a substrate significantly enhanced their PSII photosynthetic capabilities, and triggered further development. The central protrusion of the disk is the growth point, may have transfer of nutritive material with the marginal cells. Within the young germling, the

  5. Variations in morphology and PSII photosynthetic capabilities during the early development of tetraspores of Gracilaria vermiculophylla (Ohmi Papenfuss (Gracilariales, Rhodophyta

    Directory of Open Access Journals (Sweden)

    Gao Shan

    2010-04-01

    Full Text Available Abstract Background Red algae are primitive photosynthetic eukaryotes, whose spores are ideal subjects for studies of photosynthesis and development. Although the development of red alga spores has received considerable research attention, few studies have focused on the detailed morphological and photosynthetic changes that occur during the early development of tetraspores of Gracilaria vermiculophylla (Ohmi Papenfuss (Gracilariales, Rhodophyta. Herein, we documented these changes in this species of red algae. Results In the tetraspores, we observed two types of division, cruciate and zonate, and both could develop into multicellular bodies (disks. During the first 84 hours, tetraspores divided several times, but the diameter of the disks changed very little; thereafter, the diameter increased significantly. Scanning electron microscopy observations and analysis of histological sections revealed that the natural shape of the disk remains tapered over time, and the erect frond grows from the central protrusion of the disk. Cultivation of tissue from excised disks demonstrated that the central protrusion of the disk is essential for initiation of the erect frond. Photosynthetic (i.e., PSII activities were measured using chlorophyll fluorescence analysis. The results indicated that freshly released tetraspores retained limited PSII photosynthetic capabilities; when the tetraspores attached to a substrate, those capabilities increased significantly. In the disk, the PSII activity of both marginal and central cells was similar, although some degree of morphological polarity was present; the PSII photosynthetic capabilities in young germling exhibited an apico-basal gradient. Conclusions Attachment of tetraspores to a substrate significantly enhanced their PSII photosynthetic capabilities, and triggered further development. The central protrusion of the disk is the growth point, may have transfer of nutritive material with the marginal cells. Within

  6. 2010 Hudson River Shallow Water Sediment Cores

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Hudson River Shallow Water Mapping project characterizes the bottom of the Hudson River Estuary in shallow water (<3 m). The characterization includes...

  7. 2010 Hudson River Shallow Water Sediment Grabs

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Hudson River Shallow Water Mapping project characterizes the bottom of the Hudson River Estuary in shallow water (<3 m). The characterization includes...

  8. Lithospheric Architecture Beneath Hudson Bay

    Science.gov (United States)

    Porritt, R. W.; Miller, M. S.; Darbyshire, F. A.

    2015-12-01

    Hudson Bay overlies some of the thickest Precambrian lithosphere on Earth, whose internal structures contain important clues to the earliest workings of plate formation. The terminal collision, the Trans-Hudson Orogen, brought together the Western Churchill craton to the northwest and the Superior craton to the southeast. These two Archean cratons along with the Paleo-Proterozoic Trans-Hudson internides, form the core of the North American craton. We use S to P converted wave imaging and absolute shear velocity information from a joint inversion of P to S receiver functions, new ambient noise derived phase velocities, and teleseismic phase velocities to investigate this region and determine both the thickness of the lithosphere and the presence of internal discontinuities. The lithosphere under central Hudson Bay approaches 􏰂350 km thick but is thinner (􏰂200-250 km) around the periphery of the Bay. Furthermore, the amplitude of the lithosphere-asthenosphere boundary (LAB) conversion from the S receiver functions is unusually large for a craton, suggesting a large thermal contrast across the LAB, which we interpret as direct evidence of the thermal insulation effect of continents on the asthenosphere. Within the lithosphere, midlithospheric discontinuities, significantly shallower than the base of the lithosphere, are often imaged, suggesting the mechanisms that form these layers are common. Lacking time-history information, we infer that these discontinuities reflect reactivation of formation structures during deformation of the craton.

  9. 77 FR 41048 - Safety Zone; Hudson Valley Triathlon, Ulster Landing, Hudson River, NY

    Science.gov (United States)

    2012-07-12

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Hudson Valley Triathlon, Ulster Landing... Landing, NY for the 16th Annual Hudson Valley Triathlon swim event. This temporary safety zone is.... Regulatory History and Information The Hudson Valley Triathlon swim is an annual recurring event that has...

  10. Nelson River and Hudson Bay

    Science.gov (United States)

    2002-01-01

    Rivers that empty into large bodies of water can have a significant impact on the thawing of nearshore winter ice. This true-color Moderate Resolution Imaging Spectroradiometer (MODIS) image from May 18, 2001, shows the Nelson River emptying spring runoff from the Manitoba province to the south into the southwestern corner of Canada's Hudson Bay. The warmer waters from more southern latitudes hasten melting of ice near the shore, though some still remained, perhaps because in shallow coastal waters, the ice could have been anchored to the bottom. High volumes of sediment in the runoff turned the inflow brown, and the rim of the retreating ice has taken on a dirty appearance even far to the east of the river's entrance into the Bay. The sediment would have further hastened the melting of the ice because its darker color would have absorbed more solar radiation than cleaner, whiter ice. Image courtesy Jacques Descloitres, MODIS Land Rapid Response Team at NASA GSFC

  11. Hudson River Sub-Bottom Profile Points

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Hudson River Estuary Shallow Water Surveys. Subbottom Profile Points. Subbottom data was collected November 5 to December 15, 2009, in the estuary north from...

  12. Babesiosis in Lower Hudson Valley, New York

    Centers for Disease Control (CDC) Podcasts

    2011-05-12

    This podcast discusses a study about an increase in babesiosis in the Lower Hudson Valley of New York state. Dr. Julie Joseph, Assistant Professor of Medicine at New York Medical College, shares details of this study.  Created: 5/12/2011 by National Center for Emerging Zoonotic and Infectious Diseases (NCEZID).   Date Released: 5/23/2011.

  13. Contaminación parasitaria en heces de perros, recolectadas en calles de la ciudad de San Cristóbal de Las Casas, Chiapas, México

    OpenAIRE

    Ignacio Martínez Barbabosa; Elena Marcia Gutiérrez Cárdenas; Edubiel Arturo Alpízar Sosa; Rodrigo de Jesús Pimienta Lastra

    2008-01-01

    Se realizó un estudio de materia fecal de perros en 13 barrios de la ciudad de San Cristóbal de Las Casas, Chiapas, México, para conocer la frecuencia de recontaminación causada por Toxocara canis y otros parásitos caninos. Se examinaron con el método de sulfato de zinc 200 muestras de materia fecal recolectadas en diferentes calles, un camellón y un parque de los barrios seleccionados en la ciudad. Se detectaron formas parasitarias en 37% (n = 74) de las muestras. La frecuencia de huevos de ...

  14. SOLAR PANELS ON HUDSON COUNTY FACILITIES

    Energy Technology Data Exchange (ETDEWEB)

    BARRY, KEVIN

    2014-06-06

    This project involved the installation of an 83 kW grid-connected photovoltaic system tied into the energy management system of Hudson County's new 60,000 square foot Emergency Operations and Command Center and staff offices. Other renewable energy features of the building include a 15 kW wind turbine, geothermal heating and cooling, natural daylighting, natural ventilation, gray water plumbing system and a green roof. The County intends to seek Silver LEED certification for the facility.

  15. Budování značky Hudson Global Resources

    OpenAIRE

    Šamšulová, Kristýna

    2014-01-01

    The main topic of this bachelor thesis is Hudson brand building of the recruitment company Hudson Global Resources s.r.o. in Czech market. The aim of the thesis is to define according my own research the Hudson brand perception by clients of the company and propose a Hudson brand strategy and also to evalute which brand management tool the company should use.

  16. Habitat Mapping Cruise - Hudson Canyon (HB0904, EK60)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Objectives are to: 1) perform multibeam mapping of transitional and deepwater habitats in Hudson Canyon (off New Jersey) with the National Institute of Undersea...

  17. 78 FR 76140 - Extension of Public Comment Period for the Champlain Hudson Power Express Transmission Line...

    Science.gov (United States)

    2013-12-16

    ... Extension of Public Comment Period for the Champlain Hudson Power Express Transmission Line Project Draft... Hudson Power Express Transmission Line Project Draft Environmental Impact Statement (DOE/EIS-0447). The... permit to the Applicant, Champlain Hudson Power Express, Inc. (CHPEI), to construct, operate,...

  18. 40 CFR 81.129 - Hudson Valley Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Quality Control Regions § 81.129 Hudson Valley Intrastate Air Quality Control Region. The Hudson Valley Intrastate Air Quality Control Region (New York) consists of the territorial area encompassed by the... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Hudson Valley Intrastate Air...

  19. 77 FR 32984 - Notice of Inventory Completion: University of Maine, Hudson Museum, Orono, ME

    Science.gov (United States)

    2012-06-04

    ... National Park Service Notice of Inventory Completion: University of Maine, Hudson Museum, Orono, ME AGENCY: National Park Service, Interior. ACTION: Notice. SUMMARY: The University of Maine, Hudson Museum has... contact the University of Maine, Hudson Museum. Repatriation of the human remains to the Indian...

  20. The Competition of Tidal Mixing and Freshwater Forcing in Shaping the Outflow from Hudson Strait

    Science.gov (United States)

    2011-04-01

    Strait outflow. Journal of Marine Systems , special issue on Hudson Bay, in press. St. Laurent, P., F. Straneo, J.F. Dumais, D.G. Barber, 2011 What...is the fate of the river waters of Hudson Bay? Journal of Marine Systems , special issue on Hudson Bay, in press. Straneo, F., D. Sutherland, D

  1. 76 FR 63342 - Environmental Impact Statement, Tappan Zee Hudson River Crossing Project (Rockland and...

    Science.gov (United States)

    2011-10-12

    ... Impact Statement, Tappan Zee Hudson River Crossing Project (Rockland and Westchester Counties, NY) AGENCY... Tappan Zee Hudson River crossing in Rockland and Westchester Counties, New York. The purpose of this... infrastructure of the Tappan Zee Hudson River crossing. 1. Description of the Project Area The Tappan Zee...

  2. Transport of Cerro Hudson SO2 clouds

    Science.gov (United States)

    Doiron, Scott D.; Bluth, Gregg J. S.; Schnetzler, Charles C.; Krueger, Arlin J.; Walter, Louis S.

    The Cerro Hudson volcano in southern Chile (45.92°S, 73.0°W) emitted large ash and sulfur dioxide clouds on August 12-15, following several days of minor activity [Global Volcanism Network Bulletin, 1991]. The SO2 clouds were observed using (preliminary) near real-time data from the Total Ozone Mapping Spectrometer (TOMS) as they encircled the south polar region. The injection of SO2 into the stratosphere has essentially created a gigantic chemical tracer that could provide new insights into the wind patterns and seasonal circulation around the Antarctic region.around the Antarctic region. The TOMS instrument, on board the National Aeronautic and Space Administration's Nimbus 7 satellite, measures the ratio of backscattered Earth radiance to incoming solar irradiance in the ultraviolet spectrum. Although originally designed to measure ozone, it was later discovered that the TOMS instrument could also detect and quantify SO2 [Krueger, 1985]. After this discovery, measurements from TOMS were examined for SO2 emissions for all recorded volcanic eruptions since Nimbus-7 was launched in October 1978, and current data are analyzed as new eruptions occur. The satellite is in a polar, Sun-synchronous orbit so that it crosses the equator at local noon and observes the whole sunlit Earth in approximately 14 orbits each day. Total column amounts of SO2 are determined that represent the amount of gas affecting the reflection of ultraviolet light through a column of the atmosphere from the satellite to the reflecting surface, Earth, given in terms of milli atmospheres centimeter (1000 milli atm cm = a gas layer 1-cm thick at STP). The mass of SO2 is calculated by integrating over the cloud area to obtain a volume, then converting to tons.

  3. Inmunodiagnóstico de la infección en humanos por Trypanosoma cruzi mediante ELISA utilizando sangre recolectada en papel de filtro

    Directory of Open Access Journals (Sweden)

    Luis C. Orozco

    1999-06-01

    Full Text Available Los estudios seroepidemiológicos para la detección de anticuerpos contra Trypanosoma cruzi requieren de un gran número de muestras y la obtención de sangre por punción venosa y su transporte se hacen difíciles y costosos. La recolección de sangre en papel de filtro minimiza éstas dificultades y el estudio valoró tanto éste sistema como la validez y reproducibilidad del inmunoensayo ELlSA para el inmunodiagnóstico de la infección en humanos por T cruzi Se utilizó suero y eluídos de sangre recolectada en papel de filtro de personas de zona endémica de enfermedad de Chagas para la detección de anticuerpos contra T cruzi mediante las pruebas de inmunofluorescencia indirecta (IFI y ELISA. Lavalidez del ELlSA utilizando eluídos de sangre en papel de filtro presentó un área bajo la curva de receptor operador (ROC de 0.9944. El acuerdo del ELlSA entre los dos tipos de muestra presentó una distribución cercana a la normal con un promedio de -0.01 y una desviación estándar de 0.23. Se evidenció que la reproducibilidad del IFI es inferior a la del ELISA. Esta mayor concordancia y la mayor sensibilidad y especificidad encontrada previamente para el ELISA hacen pensar en la posibilidad de presentarla como alternativa de prueba de referencia para la detección de anticuerpos contra 7: cruziy su utilización en estudios epidemiológicos.

  4. Climate change and sea ice: Shipping accessibility on the marine transportation corridor through Hudson Bay and Hudson Strait (1980–2014

    Directory of Open Access Journals (Sweden)

    Jonathan Andrews

    2017-03-01

    Full Text Available Shipping traffic has been increasing in Hudson Strait and Hudson Bay and the shipping route through these waters to the Port of Churchill may soon become a federally-designated transportation corridor. A dataset on passive microwave-based sea ice concentration was used to characterize the timing of the ice on the shipping corridor to the Port between 1980 and 2014. Efforts were made to produce results in a readily accessible format for stakeholders of the shipping industry; for example, open water was defined using a sea ice concentration threshold of ≤ 15% and results are presented in terms of real dates instead of anomalies. Between 1980 and 2014, the average breakup date on the corridor was July 4, the average freeze-up date was November 25, and the average length of the open water season was 145 days. However, each of these three variables exhibited significant long-term trends and spatial variability over the 34-year time period. Regression analysis revealed significant linear trends towards earlier breakup (–0.66 days year–1, later freeze-up (+0.52 days year–1, and a longer open water season (+1.14 days year–1 along the shipping corridor between 1980 and 2014. Moreover, the section of the corridor passing through Hudson Strait displayed significantly stronger trends than the two sections in Hudson Bay (i.e., “Hudson Islands” and “Hudson Bay”. As a result, sea ice timing in the Hudson Strait section of the corridor has diverged from the timing in the Hudson Bay sections. For example, the 2010–2014 median length of the open water season was 177 days in Hudson Strait and 153 days in the Hudson Bay sections. Finally, significant linear relationships were observed amongst breakup, freeze-up, and the length of the open water season for all sections of the corridor; correlation analysis suggests that these relationships have greatest impact in Hudson Strait.

  5. Genotipificación de los genes msp1 (bloque 2) y dhfr (codón108) de Plasmodium falciparum en muestras de campo recolectadas en cuatro localidades endémicas de Colombia.

    OpenAIRE

    Angela Patricia Guerra; Angélica Knudson; Rubén Santiago Nicholls; John Alexander Galindo; Zaava Ravid; Sonia Rahirant; Nidia Duarte; Jacqueline Chaparro-Olaya; Moisés Wasserman

    2006-01-01

    Introducción. Plasmodium falciparum es un parásito altamente polimórfico, lo cual le permite evadir la respuesta inmune del hospedero, diseminar la resistencia a medicamentos y favorecer la transmisión. Objetivos. Analizar la diversidad genética de las poblaciones de P. falciparum en muestras de cuatro zonas endémicas de malaria en Colombia. Materiales y métodos. Se incluyeron muestras de sangre recolectadas en papel de filtro de 123 pacientes con malaria no complicada por P. falciparum duran...

  6. Babesiosis in Lower Hudson Valley, New York, USA

    Science.gov (United States)

    Roy, Sumith S.; Shams, Navid; Visintainer, Paul; Nadelman, Robert B.; Hosur, Srilatha; Nelson, John; Wormser, Gary P.

    2011-01-01

    Although Lyme disease has been endemic to parts of the Lower Hudson Valley of New York, United States, for >2 decades, babesiosis has emerged there only since 2001. The number of Lower Hudson Valley residents in whom babesiosis was diagnosed increased 20-fold, from 6 to 119 cases per year during 2001–2008, compared with an ≈1.6-fold increase for the rest of New York. During 2002–2009, a total of 19 patients with babesiosis were hospitalized on 22 occasions at the regional tertiary care center. Concurrent conditions included advanced age, malignancies, splenectomy, and AIDS. Two patients acquired the infection from blood transfusions and 1 from perinatal exposure, rather than from a tick bite. One patient died. Clinicians should consider babesiosis in persons with fever and hemolytic anemia who have had tick exposure or have received blood products. PMID:21529393

  7. Utility company installs first Hudson River drilled crossing

    Energy Technology Data Exchange (ETDEWEB)

    1993-12-01

    Directionally drilling a natural gas pipe line under the Hudson River called for innovative installation techniques including an elevated pullback over a heavily traveled commuter railroad. The 3,700-ft crossing was installed for Central Hudson Gas and Electric Corp. as part of an 11-mi system to supply natural gas from the Iroquois Gas Transmission System to the utility company's Roseton Generating Station. It represents the first horizontal drilled pipe line installation of the Hudson River and the longest drilled crossing in the US Northeast. At the point of installation, the line was designed to contend with an existing glacial till geology, the river crossing, eight electric cables near the right-of-way and the high-speed Metro North Railroad on the east side of the river. Through the interconnection with Iroquois, the utility receives up to 100 MMcfd of natural gas at 750 psig. Total cost of the new system was about $13.1 million with nearly $3.2 million dedicated to the crossing. This paper describes the installation procedures used in this project.

  8. Tracklines of a multibeam survey of the Hudson Shelf Valley carried out in 1998 (polyline shapefile, geographic, WGS 84)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The Hudson Shelf Valley is the submerged seaward extension of the ancestral Hudson River drainage system and is the largest physiographic feature on the Middle...

  9. The Riso-Hudson Enneagram Type Indicator: Estimates of Reliability and Validity

    Science.gov (United States)

    Newgent, Rebecca A.; Parr, Patricia E.; Newman, Isadore; Higgins, Kristin K.

    2004-01-01

    This investigation was conducted to estimate the reliability and validity of scores on the Riso-Hudson Enneagram Type Indicator (D. R. Riso & R. Hudson, 1999a). Results of 287 participants were analyzed. Alpha suggests an adequate degree of internal consistency. Evidence provides mixed support for construct validity using correlational and…

  10. 78 FR 20169 - Notice of Availability of an Environmental Assessment for the Proposed Hudson Yards Concrete...

    Science.gov (United States)

    2013-04-03

    ... Hudson Yards Concrete Casing Project in New York, New York AGENCY: Federal Railroad Administration (FRA... Assessment for the Hudson Yards Concrete Casing Construction. SUMMARY: This notice advises the public that... coordination with Federal Railroad Administration (FRA) for the construction of an underground concrete casing...

  11. 75 FR 39839 - Regulated Navigation Area; Hudson River and Port of NY/NJ

    Science.gov (United States)

    2010-07-13

    ... restrictions with the Kiewit and Weeks Marine contractors, and with Hudson River and Sandy Hook Pilots... transfer of the bridge span from shore to the barges has been scheduled on a weekday when it is expected to... Overtaking zones are established in areas identified by Weeks Marine, Hudson River and Sandy Hook Pilots as...

  12. Comments on James D. Brown and Thom Hudson's "The Alternatives in Language Assessment."

    Science.gov (United States)

    Bruton, Anthony; Brown, James Dean; Hudson, Thom

    1999-01-01

    Anthony Bruton comments on Brown and Hudson's article "The Alternatives in Language Assessment," (v32 n4 Win 1998). Raises questions about some of their definitions and categories and suggests additional items that need to be considered by test takers. Brown and Hudson reply with clarifications of terms and definition of the scope of their paper.…

  13. 33 CFR 165.170 - Safety Zone: Triathlon, Ulster Landing, Hudson River, NY.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone: Triathlon, Ulster Landing, Hudson River, NY. 165.170 Section 165.170 Navigation and Navigable Waters COAST GUARD, DEPARTMENT... § 165.170 Safety Zone: Triathlon, Ulster Landing, Hudson River, NY. (a) Regulated area. The...

  14. 77 FR 65929 - Notice of Final Federal Agency Actions on the Tappan Zee Hudson River Crossing Project in New York

    Science.gov (United States)

    2012-10-31

    ... Federal Highway Administration Notice of Final Federal Agency Actions on the Tappan Zee Hudson River.... Sec. 139(l)(1). The actions relate to the Tappan Zee Hudson River Crossing Project located in Rockland... the following highway project in the State of New York: Tappan Zee Hudson River Crossing...

  15. 78 FR 27473 - Notice of Final Federal Agency Actions on the Tappan Zee Hudson River Crossing Project in New York

    Science.gov (United States)

    2013-05-10

    ... Federal Highway Administration Notice of Final Federal Agency Actions on the Tappan Zee Hudson River... within the meaning of 23 U.S.C. 139(l)(1). The actions relate to the Tappan Zee Hudson River Crossing... FHWA published a ``Notice of Final Federal Agency Actions'' on the Tappan Zee Hudson River...

  16. Integrating shear velocity observations of the Hudson Bay

    Science.gov (United States)

    Porritt, R. W.; Miller, M. S.; Darbyshire, F. A.

    2013-12-01

    Hudson Bay is the core of the Laurentia craton of North America. This region contains some of the thickest lithosphere globally, reaching 250-300 km depth. Previous studies have shown that much of this region is composed of amalgamated proto-continents including the Western Churchill and Superior provinces and that much of the structure of these constituents has been retained since the Trans-Hudson Orogen at 1.8 Ga. Using the Hudson Bay Lithospheric Experiment (HuBLE) and other permanent and POLARIS broadband seismic data, we image the region with S to P receiver functions, joint inversion of P to S receiver functions with surface waves, and teleseismic S and P wave travel-times. The receiver function imaging reveals a persistent mid-lithospheric layer at ~80 km depth under all stations, but a variable lithospheric thickness. The teleseismic S delay times show a pattern of early arrivals around the center of the network, beneath Hudson Bay where the lithosphere is thickest, while the P delay times are early in the Superior province relative to the Western Churchill province. This suggests higher Vp/Vs ratios in the Superior province, which is evidence that stacked oceanic plates formed this province. The relatively flat Moho imaged by earlier receiver function studies and the lower mantle Vp/Vs of the Western Churchill province provides evidence of formation by plume head extraction. The joint inversion shows an LAB that is typically a broad discontinuity spanning ~20-30 km at ~220 km depth suggesting a primarily thermal boundary zone. The mid-lithospheric layer is composed of increasing velocity from the ~40 km depth Moho defined by H-k stacking of PRFs to a broad, constant velocity lithospheric lid spanning 80-200 km depth. We suggest this mid-lithospheric layer represents the mantle lithosphere of the proto-continents prior to collision and the lid formed due to post-collisional cooling. The integration of these seismic datasets furthers our understanding of

  17. Analyzing a Mid-Air Collision Over the Hudson River

    Science.gov (United States)

    Brown, Sean; Holloway, C. Michael

    2012-01-01

    On August 8, 2009, a private airplane collided with a sightseeing helicopter over the Hudson River near Hoboken, New Jersey. All three people aboard the airplane, the pilot and two passengers, and all six people aboard the helicopter, the pilot and five passengers, were killed. The National Transportation Safety Board report on the accident identified inherent limitations of the see-and-avoid concept, inadequate regulations, and errors by the pilots and an air traffic controller as causing or contributing to the accident. This paper presents the results of analyzing the accident using the Systems-Theoretic Accident Model and Processes (STAMP) approach to determining accident causation.

  18. Estandarización y evaluación de ELISA en eluidos de sangre seca recolectada en papel de filtro para el diagnóstico de cisticercocis

    Directory of Open Access Journals (Sweden)

    Augusto Corredor

    1996-06-01

    Full Text Available Se estandarizó y evaluó la prueba inmunoenzimática ELlSA para la detección de anticuerpos contra larva de Taenia solium usando eluidos de sangre seca obtenida por punción digital y recolectada en papel de filtro. La dilución óptima de muestra fue de 1 :400, la cual es equivalente a la obtenida a partir de suero. El ELlSA mostró una sensibilidad de 100% y una especificidad de 97,6%, lo cual permite su utilización tanto para diagnóstico como para encuestas seroepidemiológicas.

  19. Riverine organic matter composition and fluxes to Hudson Bay

    Science.gov (United States)

    Kuzyk, Z. Z. A.; Macdonald, R. W.; Goni, M. A.; Godin, P.; Stern, G. A.

    2016-12-01

    With warming in northern regions, many changes including permafrost degradation, vegetation alteration, and wildfire incidence will impact the carbon cycle. Organic carbon (OC) carried by river runoff to northern oceans has the potential to provide integrated evidence of these impacts. Here, concentrations of dissolved (DOC) and particulate (POC) OC are used to estimate terrestrial OC transport in 17 major rivers draining varied vegetative and permafrost conditions into Hudson Bay and compositional data (lignin and 14C) to infer OC sources. Hudson Bay lies just south of the Arctic Circle in Canada and is surrounded by a large drainage basin (3.9 × 106 km2) dominated by permafrost. Analysis of POC and DOC in the 17 rivers indicates that DOC dominates the total OC load. The southern rivers dominate. The Nelson and Churchill Rivers to the southwest are particularly important suppliers of OC partly because of large drainage basins but also perhaps because of impacts by hydroelectric development, as suggested by a 14C age of DOC in the Churchill River of 2800 years. Higher DOC and POC concentrations in the southern rivers, which have substantive areas only partially covered by permafrost, compared to northern rivers draining areas with complete permafrost cover, implies that warming - and hence permafrost thawing - will lead to progressively higher DOC and POC loads for these rivers. Lignin composition in the organic matter (S/V and C/V ratios) reveals mixed sources of OC consistent with the dominant vegetation in the river basins. This vegetation is organized by latitude with southern regions below the tree line enriched by woody gymnosperm sources (boreal forest) and northern regions enriched with organic matter from non-woody angiosperms (flowering shrubs, tundra). Acid/Aldehyde composition together with Δ14C data for selected DOC samples suggest that most of the lignin has undergone oxidative degradation, particularly the DOC component. However, high Δ14C ages

  20. Rock Engineering Design by Xiating Feng and John A Hudson

    Institute of Scientific and Technical Information of China (English)

    E.T.Brown

    2012-01-01

    This highly original and innovative book is the outcome of the work of the Commission on Rock Engineering Design Methodology of the International Society for Rock Mechanics (ISRM) in the period 2007-2011.The work of the Commission was managed by the authors,Professor John A Hudson,ISRM President for 2007-2011,and Professor Xiating Feng,ISRM President for 2011-2015,in association with the Chinese Society for Rock Mechanics and Engineering.Recently,this reviewer (2011) has argued that the work of its Commissions has been among the major achievements of the ISRM in the 50 years since its foundation in 1962.This book adds to that impressive record of achievement.

  1. 2012 FEMA Topographic Lidar: Hudson-Hoosic and Deerfield Watersheds, Massachusetts

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Light Detection and Ranging (LiDAR) dataset is a survey of the Hudson-Hoosic and Deerfield project area. The entire survey area for Massachusetts is...

  2. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: INVERT (Invertebrate Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for marine and estuarine invertebrate species for the Hudson River. Vector polygons in this data set...

  3. Environmental Sensitivity Index (ESI) Atlas: Hudson River, maps and geographic information systems data (NODC Accession 0014791)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set comprises the Environmental Sensitivity Index (ESI) data for the Hudson River from 1942 to 2005. ESI data characterize estuarine environments and...

  4. Hudson River Sub_Bottom Profile Data - Raw SEG-Y Files (*.sgy)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Hudson River Estuary Shallow Water Surveys. Subbottom data was collected November 5 to December 15, 2009, in the estuary north from Saugerties to Troy. Data...

  5. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: MGT (Management Area Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive human-use data for regional and state parks, historic sites, marine sanctuaries, and other managed areas for the Hudson River....

  6. 2012 FEMA Topographic Lidar: Hudson-Hoosic and Deerfield Watersheds, Massachusetts

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Light Detection and Ranging (LiDAR) dataset is a survey of the Hudson-Hoosic and Deerfield project area. The entire survey area for Massachusetts is...

  7. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: SENSITIV (Sensitive Area Points)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains human-use resource data for sensitive areas along the Hudson River. Vector points in this data set represent sensitive areas. This data set...

  8. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: FISH (Fish Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for marine, estuarine, anadromous, and freshwater fish species in the Hudson River. Vector polygons in this...

  9. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: HYDRO (Hydrography Lines and Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains vector lines and polygons representing coastal hydrography used in the creation of the Environmental Sensitivity Index (ESI) for the Hudson...

  10. Three-Dimensional Scale-Model Tank Experiment of the Hudson Canyon Region

    Science.gov (United States)

    2014-09-30

    Three-Dimensional Scale-Model Tank Experiment of the Hudson Canyon Region Jason D. Sagers Applied Research Laboratories at The University of...planning for future experiments in ocean environments with slopes and canyons . APPROACH The development of fully 3D numerical acoustic propagation models...Experiment of the Hudson Canyon Region 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER 5e. TASK NUMBER

  11. Evaluation of dredged material proposed for ocean disposal from Hudson River, New York

    Energy Technology Data Exchange (ETDEWEB)

    Gardiner, W.W.; Barrows, E.S.; Antrim, L.D.; Gruendell, B.D.; Word, J.Q.; Tokos, J.J.S. [Battelle/Marine Sciences Lab., Sequim, WA (United States)

    1996-09-01

    The Hudson River (Federal Project No. 41) was one of seven waterways that the U.S. Army Corps of Engineers-New York District (USACE-NYD) requested the Battelle Marine Sciences Laboratory (MSL) to sample and evaluate for dredging and disposal in March 1994. Sediment samples were collected from the Hudson River. Tests and analyses were conducted on Hudson River sediment core samples. The evaluation of proposed dredged material from the Hudson River included bulk sediment chemical analyses, chemical analyses of site water and elutriate, water-column and benthic acute toxicity tests, and bioaccumulation studies. Individual sediment core samples collected from Hudson River were analyzed for grain size, moisture content, and total organic carbon (TOC). A composite sediment sample, representing the entire area proposed for dredging, was analyzed for bulk density, specific gravity, metals, chlorinated pesticides, polychlorinated biphenyl (PCB) congeners, polynuclear aromatic hydrocarbons (PAH), and 1,4-dichlorobenzene. Site water and elutriate water, prepared from the suspended-particulate phase (SPP) of Hudson River sediment, were analyzed for metals, pesticides, and PCBS. Water-column or SPP toxicity tests were performed with three species. Benthic acute toxicity tests were performed. Bioaccumulation tests were also conducted.

  12. Sea-Level Rise Impacts on Hudson River Marshes

    Science.gov (United States)

    Hooks, A.; Nitsche, F. O.

    2015-12-01

    The response of tidal marshes to increasing sea-level rise is uncertain. Tidal marshes can adapt to rising sea levels through vertical accretion and inland migration. Yet tidal marshes are vulnerable to submergence if the rate of sea-level rise exceeds the rate of accretion and if inland migration is limited by natural features or development. We studied how Piermont and Iona Island Marsh, two tidal marshes on the Hudson River, New York, would be affected by sea-level rise of 0.5m, 1m, and 1.5m by 2100. This study was based on the 2011-2012 Coastal New York LiDAR survey. Using GIS we mapped sea-level rise projections accounting for accretion rates and calculated the submerged area of the marsh. Based on the Hudson River National Estuarine Research Reserve Vegetation 2005 dataset, we studied how elevation zones based on vegetation distributions would change. To evaluate the potential for inland migration, we assessed land cover around each marsh using the National Land Cover Database 2011 Land Cover dataset and examined the slope beyond the marsh boundaries. With an accretion rate of 0.29cm/year and 0.5m of sea-level rise by 2100, Piermont Marsh would be mostly unchanged. With 1.5m of sea-level rise, 86% of Piermont Marsh would be flooded. For Iona Island Marsh with an accretion rate of 0.78cm/year, sea-level rise of 0.5m by 2100 would result in a 4% expansion while 1.5m sea-level rise would cause inundation of 17% of the marsh. The results indicate that Piermont and Iona Island Marsh may be able to survive rates of sea-level rise such as 0.5m by 2100 through vertical accretion. At rates of sea-level rise like 1.5m by 2100, vertical accretion cannot match sea-level rise, submerging parts of the marshes. High elevations and steep slopes limit Piermont and Iona Island Marsh's ability to migrate inland. Understanding the impacts of sea-level rise on Piermont and Iona Island Marsh allows for long-term planning and could motivate marsh conservation programs.

  13. Bathymetry of the Hudson Shelf Valley (12-m resolution Esri binary grid and 32-bit GeoTIFF, Mercator, WGS 84)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The Hudson Shelf Valley is the submerged seaward extension of the ancestral Hudson River drainage system and is the largest physiographic feature on the Middle...

  14. The Bible and mission in faith perspective: J.Hudson Taylor and the early China Inland Mission

    NARCIS (Netherlands)

    Wigram, C.E.M.

    2007-01-01

    The thesis 'The Bible and Mission in Faith Perspective: J.Hudson Taylor and the Early China Inland Mission' by Christopher E.M. Wigram analysis the hermeneutical assumptions that underlay Hudson Taylor's approach to biblical interpretation, and the significance of his approach for the mission which

  15. Variability of an under-ice river plume in Hudson Bay

    Science.gov (United States)

    Ingram, R. Grant; Larouche, Pierre

    1987-08-01

    Observations of the Great Whale River plume in the coastal waters of Hudson Bay, Canada, during late winter and early spring during four different years showed its area to vary as a power of the discharge. The under-ice plume area was much larger than plume area in open water for comparable discharges. Differences in plume geometry were related to elapsed time since ice formation and low-frequency variability of the coastal circulation. The strength and orientation of the coastal motion was weakly correlated with the cross-Hudson Bay atmospheric pressure gradient. The passage of low-pressure systems over Hudson Bay is thought to generate a progressive edge wave in the absence of direct wind forcing. The amplitude of the low-frequency variations in coastal circulation decreased with the increasing spatial extent of the landfast ice in the study area.

  16. A statistical forecast model for Tropical Cyclone Rainfall and flood events for the Hudson River

    Science.gov (United States)

    Cioffi, Francesco; Conticello, Federico; Hall, Thimoty; Lall, Upmanu; Orton, Philip

    2014-05-01

    Tropical Cyclones (TCs) lead to potentially severe coastal flooding through wind surge and also through rainfall-runoff processes. There is growing interest in modeling these processes simultaneously. Here, a statistical approach that can facilitate this process is presented with an application to the Hudson River Basin that is associated with the New York City metropolitan area. Three submodels are used in sequence. The first submodel is a stochastic model of the complete life cycle of North Atlantic (NA) tropical cyclones developed by Hall and Yonekura (2011). It uses archived data of TCs throughout the North Atlantic to estimate landfall rates at high geographic resolution as a function of the ENSO state and of sea surface temperature (SST). The second submodel translates the attributes of a tropical cyclone simulated by the first model to rainfall intensity at selected stations within the watershed of Hudson River. Two different approaches are used and compared: artificial neural network (ANN) and k-nearest neighbor (KNN). Finally, the third submodel transforms, once again, by using an ANN approach and KNN, the rainfall intensities, calculated for the ensemble of the stations, to the streamflows at specific points of the tributaries of the Hudson River. These streamflows are to be used as inputs in a hydrodynamic model that includes storm surge surge dynamics for the simulation of coastal flooding along the Hudson River. Calibration and validation of the model is carried out by using, selected tropical cyclone data since 1950, and hourly station rainfall and streamflow recorded for such extreme events. Four stream gauges (Troy dam, Mohawk River at Cohoes, Mohawk River diversion at Crescent Dam, Hudson River above lock one nr Waterford), a gauge from a tributary in the lower Hudson River, and over 20 rain gauges are used. The performance of the proposed model as tool for storm events is then analyzed and discussed.

  17. Quantum Random Walks and their Convergence to Evans-Hudson Flows

    Indian Academy of Sciences (India)

    Lingaraj Sahu

    2008-08-01

    Using coordinate-free basic operators on toy Fock spaces, quantum random walks are defined following the ideas of Attal and Pautrat. Extending the result for one dimensional noise, strong convergence of quantum random walks associated with bounded structure maps to Evans–Hudson flow is proved under suitable assumptions. Starting from the bounded generator of a given uniformly continuous quantum dynamical semigroup on a von Neumann algebra, we have constructed quantum random walks which converges strongly and the strong limit gives an Evans–Hudson dilation for the semigroup.

  18. Abrupt Atmospheric Methane Increases Associated With Hudson Strait Heinrich Events

    Science.gov (United States)

    Rhodes, R.; Brook, E.; Chiang, J. C. H.; Blunier, T.; Maselli, O. J.; McConnell, J. R.; Romanini, D.; Severinghaus, J. P.

    2015-12-01

    The drivers of abrupt climate change during the Last Glacial Period are not well understood. While Dansgaard-Oeschger (DO) cycles are thought to be linked to variations in the strength of the Atlantic Meridional Ocean Circulation (AMOC), it is not clear how or if Heinrich Events—extensive influxes of icebergs into the North Atlantic Ocean that impacted global climate and biogeochemistry—are related. An enduring problem is the difficultly in dating iceberg rafted debris deposits that typically lack foraminifera. Here we present an ultra-high resolution record of methane from the West Antarctic Ice Sheet Divide ice core at unprecedented, continuous temporal resolution from 67.2-9.8 ka BP, which we propose constrains the timing of Heinrich events. Our methane record essentially mirrors Greenland ice core stable isotope variability across D-O events, except during Heinrich stadials 1, 2, 4 and 5. Partway through these stadials only, methane increases abruptly and rapidly, as at the onset of a D-O event but Greenland temperature exhibits no equivalent response. Speleothem records exhibit signatures of drought in the Northern extra-tropics and intensified monsoonal activity over South America at these times. We use a simple heuristic model to propose that cold air temperatures and extensive sea ice in the North, resulting from Heinrich events, caused extreme reorganization of tropical hydroclimate. This involved curtailment of the seasonal northerly migration of tropical rain belts, leading to intensification of rainfall over Southern Hemisphere tropical wetlands, thus allowing production of excess methane relative to a 'normal' Greenland stadial. We note that this mechanism can operate if AMOC is already in a slowed state when a Heinrich event occurs, as paleo-evidence suggests it was. Heinrich events and associated sea ice cover would therefore act to prolong the duration of this AMOC state. Our findings place the big four Heinrich events of Hudson Strait origin

  19. Genotipificación de los genes msp1 (bloque 2 y dhfr (codón108 de Plasmodium falciparum en muestras de campo recolectadas en cuatro localidades endémicas de Colombia.

    Directory of Open Access Journals (Sweden)

    Angela Patricia Guerra

    2006-03-01

    Full Text Available Introducción. Plasmodium falciparum es un parásito altamente polimórfico, lo cual le permite evadir la respuesta inmune del hospedero, diseminar la resistencia a medicamentos y favorecer la transmisión. Objetivos. Analizar la diversidad genética de las poblaciones de P. falciparum en muestras de cuatro zonas endémicas de malaria en Colombia. Materiales y métodos. Se incluyeron muestras de sangre recolectadas en papel de filtro de 123 pacientes con malaria no complicada por P. falciparum durante los años 2002 a 2004; la genotipificación se realizó mediante reacción en cadena de la polimerasa con iniciadores específicos para los marcadores moleculares de la región polimórfica del bloque 2 del gen msp1 y del codón 108 de dhfr. Resultados. En el bloque 2 del gen msp1 se detectó MAD20 en 95,9% (118/123; IC 95%: 90,8 a 98,7, K1 en 6,5% (8/123; IC 95%: 2,8 a 12,4 y RO33 en 2,4% (3/123; IC 95%: 0,5 a 6,9 de las muestras. Para el gen dhfr, el alotipo mutante N108 se detectó en todas las muestras analizadas y el alotipo T108 en 3,2% (4/123; IC 95%: 0,9 a 8,1; el alotipo silvestre S108 se encontró en 34,1% (42/123; IC 95%: 25,8 a 43,2. Al combinar los resultados de ambos genes, el 61,8% (76/123; IC 95%: 52,6 a 70,4 de las muestras correspondieron a infecciones simples y el 38,2% (47/123; IC 95%: 29,6 a 47,4 a infecciones mixtas, siendo MAD20/N108-S108 la combinación más frecuente entre estas últimas (30,1%. Conclusiones. Las infecciones simples, o sea, la presencia de un solo alelo en cada uno de los genes, predominaron en las muestras estudiadas; las poblaciones de parásitos analizadas fueron muy homogéneas en su composición genética.

  20. Estimating the Economic Value of Narwhal and Beluga Hunts in Hudson Bay, Nunavut

    NARCIS (Netherlands)

    Hoover, C.; Bailey, M.L.; Higdon, J.; Ferguson, S.H.; Sumaila, R.

    2013-01-01

    Hunting of narwhal (Monodon monoceros) and beluga (Delphinapterus leucas) in Hudson Bay is an important activity, providing food and income in northern communities, yet few studies detail the economic aspects of these hunts. We outline the uses of narwhal and beluga and estimate the revenues, costs,

  1. Inherent and apparent optical measurements in the Hudson/Raritan estuary

    NARCIS (Netherlands)

    Bagheri, S.; Rijkeboer, M.; Gons, H.J.

    2002-01-01

    During an August, 1999 field campaign, measurements were made to establish hydrologic optical properties of the Hudson/Raritan Estuary (New York-New Jersey): 1) concurrent above-and below-surface spectral irradiance; 2) sampling for laboratory determination of inherent optical properties; and 3) con

  2. Demography and population status of polar bears in western Hudson Bay

    Science.gov (United States)

    Lunn, Nicholas J.; Regher, Eric V; Servanty, Sabrina; Converse, Sarah J.; Richardson, Evan S.; Stirling, Ian

    2013-01-01

    We evaluated the demography and population status of the Western Hudson Bay (WH) polar bear subpopulation for the period 1984-2011, using live-recapture data from research studies and management actions, and dead-recovery data from polar bears harvested for subsistence purposes or removed during human-bear conflicts.

  3. Library Resources in the Mid-Hudson Valley: Columbia, Dutchess, Greene, Orange, Putnam, Rockland, Sullivan, Ulster.

    Science.gov (United States)

    Reichmann, Felix; And Others

    The purpose of this study was to "survey the library resources in the eight Mid-Hudson Counties of Columbia, Dutchess, Greene, Orange, Putnam, Rockland, Sullivan, and Ulster in order to develop a plan of service in which assets would be shared, resources developed, and services extended." Survey data were collected by six questionnaires;…

  4. Science, law, and Hudson River power plants: A case study in environmental impact assessment

    Energy Technology Data Exchange (ETDEWEB)

    Barnthouse, L.W.; Klauda, R.J.; Vaughan, D.S.; Kendall, R.L. (eds.)

    1988-01-01

    Between 1963 and 1980, the Hudson River estuary was the focus of one of the most ambitious environmental research and assessment programs ever performed. The studies supported a series of US federal proceedings involving licenses and discharge permits for two controversial electric power generating facilities: the Cornwall pumped storage facility, and units 2 and 3 of the Indian Point nuclear generating station. Both facilities were to draw large volumes of water from a region of the Hudson used as spawning and nursery habitat by several fish species, including the striped bass. Fishermen and conservationists feared that a major fraction of the striped bass eggs and larvae in the Hudson would be entrained with the pumped water and killed. Additional fish would be killed on trash screens at the intakes. Scientists were asked to aid the utility companies and regulatory agencies in determining the biological importance of entrainment and impingement. This monograph contains both technical papers that present research results and synthesis papers that summarize and interpret the results. The intent was to: (1) summarize the scientific issues and approaches; (2) present the significant results of the Hudson River biological studies; (3) describe the role of the studies in the decision-making process; (4) evaluate the successes and failures of the studies; and (5) present recommendations for future estuarine impact assessments. Separate abstracts are processed for 22 papers for inclusion in the appropriate data bases.

  5. 77 FR 46613 - Safety Zone; 2012 Ironman US Championship Swim, Hudson River, Fort Lee, NJ

    Science.gov (United States)

    2012-08-06

    ...) entitled 2012 Ironman US Championship Swim, Hudson River, Fort Lee, NJ in the Federal Register (77 FR 34285...) 366-9826. SUPPLEMENTARY INFORMATION: Table of Acronyms DHS Department of Homeland Security FR Federal... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; 2012 Ironman US Championship Swim,...

  6. 77 FR 41271 - Safety Zone; Newburgh to Beacon Swim, Newburgh, Hudson River, NY

    Science.gov (United States)

    2012-07-13

    ... Acronyms DHS Department of Homeland Security FR Federal Register CFR Code of Federal Regulations NPRM... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Newburgh to Beacon Swim, Newburgh, Hudson... Newburgh, NY for the annual Newburgh Beacon Swim event. This temporary safety zone is necessary to...

  7. 75 FR 10229 - Application for Presidential Permit; Champlain Hudson Power Express, Inc.

    Science.gov (United States)

    2010-03-05

    ... Connecticut. CHPEI proposes to construct and operate a primarily underground and submarine high-voltage direct... underground cables connected as a bipole pair. Each bipole will at all times utilize its partner in the bipole... railroad ROW for a distance of approximately 69.9 miles (107.7 km). The cables would re-enter the Hudson...

  8. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: T_MAMMAL (Terrestrial Mammal Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for small terrestrial mammals (woodrats, myotis, muskrat, mink) for the Hudson River. Vector polygons in...

  9. 77 FR 22525 - Safety Zone; Swim Events in the Captain of the Port New York Zone; Hudson River, East River...

    Science.gov (United States)

    2012-04-16

    ...) Ederle Swim: Within the waters of the Hudson River between North Cove Marina, New York, NY and Sandy Hook... patrol vessel or may be on shore and will communicate with vessels via VHF-FM radio or loudhailer. In...

  10. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: WETLANDS (Environmental Sensitivity Index Wetland Types - Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains vector polygons representing coastal wetland habitats for the Hudson River classified according to the Environmental Sensitivity Index (ESI)...

  11. National Status and Trends: Bioeffects Program - Magnitude and Extent of Sediment Toxicity in the Hudson-Raritan Estuary

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — A survey of the toxicity of sediments was performed by NOAA's National Status and Trends (NSandT) Program throughout the Hudson-Raritan Estuary. The objectives of...

  12. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: M_MAMMAL (Marine Mammal Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for marine mammals (seals) in the Hudson River. Vector polygons in this data set represent marine mammal...

  13. ESTUDIO QUÍMICO DE LAS FRACCIONES ESTERÓLICAS DE ESPONJAS MARINAS RECOLECTADAS EN EL CARIBE COLOMBIANO CHEMICAL STUDY OF THE ESTEROLIC FRACTIONS OF MARINE SPONGES COLLECTED IN THE CARIBBEAN COLOMBIAN

    Directory of Open Access Journals (Sweden)

    MARY CECILIA MONTAÑO

    2009-12-01

    Full Text Available De las esponjas marinas recolectadas en el Caribe Colombiano Amorphinopsis atlantica, Lissodendoryx carolinensis, Mycale microsigmatosa, Tedania ignis y Niphates erecta se obtuvieron las fracciones esterólicas, las cuales fueron analizadas por cromatografía de gases de alta resolución acoplada a espectrometría de masas. Se identificaron 51 esteroles (12 en A. atlantica, 9 en L. carolinensis, 13 en M. microsigmatosa, 7 en T. ignis y 10 en N. erecta, siendo los esteroles con núcleo Δ5 los que predominan (60.78% de abundancia, seguido de los esteroles con núcleo Δ7 (21.57% y por último los esteroles con núcleo Δ0 (17.64%. Las cadenas lasterales de estos compuestos variaron entre 7 y 11 átomos de carbono, algunas saturadas y otras insaturadas en los carbonos C-22 o C-24(28. Se mostraron 16 cadenas laterales diferentes para los 51 compuestos: 6 con diez átomos de carbono, 4 con ocho átomos de carbono, 4 con nueve átomos de carbonos, 1 con siete átomos de carbono y 1 con once átomos de carbonos; seis de estas cadenas laterales propuestas presentan instauración en el carbono 22 y cuatro de estas cadenas laterales presentan instauración entre los carbonos 24-28. El compuesto 5α-colestan-3β-ol para la esponja A. atlantica fue el compuesto mayoritario en la fracción esterólica con una abundancia de 48.36%, el compuesto 5α-Colestan-3β-ol (Colesterol fue el compuesto mayoritario en las fracciones de las esponjas L. carolinenis, M. microsigmatosa, T. ignis y N. erecta, con una abundancia de 66.81%, 49.92%, 33.19% y 23.64%, respectivamente.Sterolic fractions were obtained from the marine sponges Amorphinopsis atlantica, Lissodendoryx carolinensis, Mycale microsigmatosa, Tedania ignis and Niphates erecta from the Colombian Caribbean coast. These were analyzed in high resolution gas chromatography connected to the mass spectrometry. 51 sterols were identified (12 in the A. atlantica, 9 in the L. carolinensis, 13 in the M. microsigmatosa

  14. 'Celebrities of the future’:fame and notability in Henry James’s Roderick Hudson and the American

    OpenAIRE

    2015-01-01

    Focusing on two of Henry James’s earliest novels, Roderick Hudson (1875) and The American (1877), this essay explores the ways in which James’s initial formulation of his signature ‘international theme’ intersects with nineteenth-century discourses on fame. Roderick Hudson positions the eponymous American sculptor as a lion and notable in Europe, and then shows his fatal attempts to transcend the objectification and commodification that accompany fame. In The American the protagonist, Christo...

  15. Measurement Error Affects Risk Estimates for Recruitment to the Hudson River Stock of Striped Bass

    OpenAIRE

    Dennis J. Dunning; Ross, Quentin E.; Munch, Stephan B.; Ginzburg, Lev R.

    2002-01-01

    We examined the consequences of ignoring the distinction between measurement error and natural variability in an assessment of risk to the Hudson River stock of striped bass posed by entrainment at the Bowline Point, Indian Point, and Roseton power plants. Risk was defined as the probability that recruitment of age-1+ striped bass would decline by 80% or more, relative to the equilibrium value, at least once during the time periods examined (1, 5, 10, and 15 years). Measurement error, estimat...

  16. Public support for ecosystem restoration in the Hudson River Valley, USA.

    Science.gov (United States)

    Connelly, Nancy A; Knuth, Barbara A; Kay, David L

    2002-04-01

    We applied the Theory of Planned Behavior to help understand the relationships between environmental beliefs, support for ecosystem restoration actions, and willingness to pay (WTP) for restoration and protection goals in the Hudson River estuary, New York State, USA. We conducted a mail survey with 3,000 randomly-chosen local residents of the Hudson River estuary in the fall of 1999. As hypothesized, the broad ecosystem restoration goals of the Hudson River Estuary Action Plan were more strongly supported than the corresponding specific implementation actions. We found that beliefs and past behavior were better explanatory variables than sociodemographic characteristics for explaining people's support for ecosystem restoration actions and WTP for restoration and protection goals. Because ecosystem restoration goals appear to be more generally acceptable than specific restoration actions, proponents of restoration programs should not become complacent about the need for active public outreach and involvement even if initial restoration program discussions have been low in controversy. Efforts to assess and foster support for ecosystem restoration should be targeted toward audiences identified on the basis of beliefs and past behaviors rather than on sociodemographic characteristics.

  17. Linking habitat use of Hudson River striped bass to accumulation of polychlorinated biphenyl congeners

    Energy Technology Data Exchange (ETDEWEB)

    Ashley, J.T.F.; Secor, D.H.; Zlokovitz, E.; Wales, S.Q.; Baker, J.E.

    2000-03-15

    Since 1976, the commercial striped bass fishery in the Hudson River (NY) has been closed due to total polychlorinated biphenyl (t-PCB) concentrations that exceed the US Food and Drug Administration's advisory level of 2 {micro}g/g-wet weight. Extensive monitoring of Hudson River striped bass demonstrated much more variability in t-PCB levels among individual striped bass than could be explained by their age, sex, or lipid contents. To investigate the possible role of differential habitat use among subpopulations of striped bass in controlling their PCB exposures, 70 fish collected throughout the Hudson River estuary and Long Island Sound in 1994--1995 were analyzed for PCB congeners, and their lifetime migration behaviors were estimated by otolith microchemistry. The mean salinity encountered during the fish's last growth season prior to capture was inversely correlated with the t-PCB body burden. Striped bass permanently residing in fresh and oligohaline portions of the estuary adjacent to known PCB sources had elevated t-PCB levels and congeneric patterns with higher proportions of di-, tri-, and tetrachlorobiphenyls. Conversely, fish spending the majority of their life in more saline waters of the estuary or migrating frequently throughout the salinity gradient contained lower PCB levels composed of more highly chlorinated congeners. The approach used in this study allows habitat use to be incorporated into exposure assessments for anadromous fish species such as striped bass.

  18. Polychlorinated biphenyls, dioxins, furans, and organochlorine pesticides in spotted sandpiper eggs from the upper Hudson River basin, New York

    Science.gov (United States)

    Custer, T.W.; Custer, Christine M.; Gray, B.R.

    2010-01-01

    In 2004, spotted sandpipers (Actitis macularia) were studied on the Hudson River near Fort Edward south to New Baltimore, NY and on two river drainages that flow into the Hudson River. Concentrations of 28 organochlorine pesticides, 160 polychlorinated biphenyl (PCB) congeners, and 17 dioxin and furan (PCDD-F) congeners were quantified in eggs collected on and off the Hudson River. The pattern of organochlorine pesticides and PCDD-F congeners did not differ significantly between eggs collected on and off the Hudson River. In contrast, the pattern of PCB congeners differed significantly between the Hudson River and other rivers. Total PCBs were significantly greater in eggs from the Hudson River (geometric mean = 9.1 ??g PCBs/g wet weight) than from the other two rivers (0.6 and 0.6 ??g PCBs/g wet weight). Seven of 35 (20%) eggs exceeded 20 ??g PCBs/g wet weight, the estimated threshold for reduced hatching in tree swallows (Tachycineta bicolor) and some raptor species; the maximum concentration was 72.3 ??g PCBs/g wet weight. Models that predicted nest survival and egg success (the proportion of eggs hatching in a clutch if at least one egg hatched) as functions of contaminant levels were poorly distinguished from models that presumed no such associations. While small sample size could have contributed to the inability to distinguish among contaminant and no toxicant models, we cannot rule out the possibility that contaminant concentrations on the Hudson River were not sufficiently high to demonstrate a relationship between contaminant concentrations and reproductive success. ?? 2009 Springer Science+Business Media, LLC.

  19. Real-time Monitoring Network to Characterize Anthropogenic and Natural Events Affecting the Hudson River, NY

    Science.gov (United States)

    Islam, M. S.; Bonner, J. S.; Fuller, C.; Kirkey, W.; Ojo, T.

    2011-12-01

    The Hudson River watershed spans 34,700 km2 predominantly in New York State, including agricultural, wilderness, and urban areas. The Hudson River supports many activities including shipping, supplies water for municipal, commercial, and agricultural uses, and is an important recreational resource. As the population increases within this watershed, so does the anthropogenic impact on this natural system. To address the impacts of anthropogenic and natural activities on this ecosystem, the River and Estuary Observatory Network (REON) is being developed through a joint venture between the Beacon Institute, Clarkson University, General Electric Inc. and IBM Inc. to monitor New York's Hudson and Mohawk Rivers in real-time. REON uses four sensor platform types with multiple nodes within the network to capture environmentally relevant episodic events. Sensor platform types include: 1) fixed robotic vertical profiler (FRVP); 2) mobile robotic undulating platform (MRUP); 3) fixed acoustic Doppler current profiler (FADCP) and 4) Autonomous Underwater Vehicle (AUV). The FRVP periodically generates a vertical profile with respect to water temperature, salinity, dissolved oxygen, particle concentration and size distribution, and fluorescence. The MRUP utilizes an undulating tow-body tethered behind a research vessel to measure the same set of water parameters as the FRVP, but does so 'synchronically' over a highly-resolved spatial regime. The fixed ADCP provides continuous water current profiles. The AUV maps four-dimensional (time, latitude, longitude, depth) variation of water quality, water currents and bathymetry along a pre-determined transect route. REON data can be used to identify episodic events, both anthropogenic and natural, that impact the Hudson River. For example, a strong heat signature associated with cooling water discharge from the Indian Point nuclear power plant was detected with the MRUP. The FRVP monitoring platform at Beacon, NY, located in the

  20. Measurement error affects risk estimates for recruitment to the Hudson River stock of striped bass.

    Science.gov (United States)

    Dunning, Dennis J; Ross, Quentin E; Munch, Stephan B; Ginzburg, Lev R

    2002-06-07

    We examined the consequences of ignoring the distinction between measurement error and natural variability in an assessment of risk to the Hudson River stock of striped bass posed by entrainment at the Bowline Point, Indian Point, and Roseton power plants. Risk was defined as the probability that recruitment of age-1+ striped bass would decline by 80% or more, relative to the equilibrium value, at least once during the time periods examined (1, 5, 10, and 15 years). Measurement error, estimated using two abundance indices from independent beach seine surveys conducted on the Hudson River, accounted for 50% of the variability in one index and 56% of the variability in the other. If a measurement error of 50% was ignored and all of the variability in abundance was attributed to natural causes, the risk that recruitment of age-1+ striped bass would decline by 80% or more after 15 years was 0.308 at the current level of entrainment mortality (11%). However, the risk decreased almost tenfold (0.032) if a measurement error of 50% was considered. The change in risk attributable to decreasing the entrainment mortality rate from 11 to 0% was very small (0.009) and similar in magnitude to the change in risk associated with an action proposed in Amendment #5 to the Interstate Fishery Management Plan for Atlantic striped bass (0.006)--an increase in the instantaneous fishing mortality rate from 0.33 to 0.4. The proposed increase in fishing mortality was not considered an adverse environmental impact, which suggests that potentially costly efforts to reduce entrainment mortality on the Hudson River stock of striped bass are not warranted.

  1. Measurement Error Affects Risk Estimates for Recruitment to the Hudson River Stock of Striped Bass

    Directory of Open Access Journals (Sweden)

    Dennis J. Dunning

    2002-01-01

    Full Text Available We examined the consequences of ignoring the distinction between measurement error and natural variability in an assessment of risk to the Hudson River stock of striped bass posed by entrainment at the Bowline Point, Indian Point, and Roseton power plants. Risk was defined as the probability that recruitment of age-1+ striped bass would decline by 80% or more, relative to the equilibrium value, at least once during the time periods examined (1, 5, 10, and 15 years. Measurement error, estimated using two abundance indices from independent beach seine surveys conducted on the Hudson River, accounted for 50% of the variability in one index and 56% of the variability in the other. If a measurement error of 50% was ignored and all of the variability in abundance was attributed to natural causes, the risk that recruitment of age-1+ striped bass would decline by 80% or more after 15 years was 0.308 at the current level of entrainment mortality (11%. However, the risk decreased almost tenfold (0.032 if a measurement error of 50% was considered. The change in risk attributable to decreasing the entrainment mortality rate from 11 to 0% was very small (0.009 and similar in magnitude to the change in risk associated with an action proposed in Amendment #5 to the Interstate Fishery Management Plan for Atlantic striped bass (0.006— an increase in the instantaneous fishing mortality rate from 0.33 to 0.4. The proposed increase in fishing mortality was not considered an adverse environmental impact, which suggests that potentially costly efforts to reduce entrainment mortality on the Hudson River stock of striped bass are not warranted.

  2. Diatoms as Proxies for Abrupt Events in the Hudson River Estuary

    Science.gov (United States)

    Skorski, W.; Abbott, D. H.; Recasens, C.; Breger, D. L.

    2014-12-01

    The Hudson River estuary has been subject to many abrupt events throughout its history including hurricanes, droughts and pluvials. Hurricanes in particular are rare, discrete events that if fingerprinted can be used to develop better age models for Hudson River sediments. Proxies use observed physical characteristics or biological assemblages (e.g. diatom and foraminiferal assemblages) as tools to reconstruct past conditions prior to the modern instrumental record. Using a sediment core taken from the Hudson River (CDO2-29A), in New York City, drought and pluvial layers were selected based on Cs-137 dating while hurricane layers were determined from occurrences of tropical to subtropical foraminifera. Contrary to previous studies (Weaver, 1970, Weiss et al, 1978), more than sixty different diatom species have been identified using a scanning electron microscope (SEM). Cosmopolitan, hurricane and drought assemblages have begun to be identified after observing multiple layers (Table 1). Tropical foraminifera dominated by Globigerinoides ruber pink were also found in a hurricane layer that we infer was deposited during Hurricane Belle in 1976. More diatom abundance analyses and cataloged SEM pictures will provide further insight into these proxies. Table 1 Diatom Genera and Species Environment Clarification Cyclotella caspia Planktonic, marine-brackish Cosmopolitan Karayevia clevei Freshwater Cosmopolitan Melosira sp Planktonic, marine Cosmopolitan Thalassiosira sp Marine, brackish Cosmopolitan Staurosirella leptostauron Benthic, freshwater Cosmopolitan Actinoptychus senarius Planktonic or benthic, freshwater to brackish Hurricane and pluvial layers Amphora aff. sp Benthic, marine or freshwater Hurricane layers only Nitzschia sp Benthic, marine or freshwater Hurricane layers only Gomphonema sp Freshwater Hurricane layers only Surirella sp Marine-brackish Drought layer only Triceratium sp Marine Drought layer only Other Genera and species Environment Clarification

  3. Sea-level Rise Impacts on Hudson River Marshes and their Vegetation Zonation

    Science.gov (United States)

    Hooks, A.; Nitsche, F. O.

    2016-12-01

    Rising sea levels may cause tidal marshes to be vulnerable to submergence and affect their ability to perform ecosystem services. However, tidal marshes are dynamic ecosystems that can adapt to sea-level rise through inland migration and vertical growth. This study examines how four tidal marshes on the Hudson River (Piermont Marsh, Iona Island Marsh, Tivoli Bays, and Stockport Flats) would be affected by 0.5m, 1m, and 1.5m of sea-level rise by 2100. Using high-resolution LiDAR elevation data and vegetation data, we mapped sea-level rise projections in GIS, accounting for current accretion rates unique to each marsh. We calculated the submerged area of each marsh and analyzed how vegetation zonation in each marsh is expected to change due to rising sea levels. We found that the steep topography of the Hudson River banks limits the marshes' ability to migrate inland, emphasizing the role of elevation-building processes in adaptation. The marshes studied would experience minimal to no inundation under lower rates of sea-level rise such as 0.5m by 2100. At higher projected rates of sea-level rise (1.5m by 2100), Piermont Marsh and Tivoli Bays would experience significant inundation while Iona Island marsh and Stockport Flats would be less affected. Overall, Stockport Flats is projected to be the marsh most resilient to sea-level rise due to its higher accretion rate and its topography. Rising sea levels are also expected to change the areas of vegetation zones, with upland, high marsh, and mid marsh zones generally declining in area and with subtidal and low marsh vegetation zones generally expanding under high rates of sea-level rise. Understanding the impacts of sea-level rise on Hudson River marshes enables long-term planning to adapt to potential changes in marsh ecosystem services and could motivate and inform conservation efforts.

  4. Suspended sediment transport in the freshwater reach of the Hudson river estuary in eastern New York

    Science.gov (United States)

    Wall, G.R.; Nystrom, E.A.; Litten, S.

    2008-01-01

    Deposition of Hudson River sediment into New York Harbor interferes with navigation lanes and requires continuous dredging. Sediment dynamics at the Hudson estuary turbidity maximum (ETM) have received considerable study, but delivery of sediment to the ETM through the freshwater reach of the estuary has received relatively little attention and few direct measurements. An acoustic Doppler current profiler was positioned at the approximate limit of continuous freshwater to develop a 4-year time series of water velocity, discharge, suspended sediment concentration, and suspended sediment discharge. This data set was compared with suspended sediment discharge data collected during the same period at two sites just above the Hudson head-of-tide (the Federal Dam at Troy) that together represent the single largest source of sediment entering the estuary. The mean annual suspended sediment-discharge from the freshwater reach of the estuary was 737,000 metric tons. Unexpectedly, the total suspended sediment discharge at the study site in November and December slightly exceeded that observed during March and April, the months during which rain and snowmelt typically result in the largest sediment discharge to the estuary. Suspended sediment discharge at the study site exceeded that from the Federal Dam, even though the intervening reach appears to store significant amounts of sediment, suggesting that 30-40% of sediment discharge observed at the study site is derived from tributaries to the estuary between the Federal Dam and study site. A simple model of sediment entering and passing through the freshwater reach on a timescale of weeks appears reasonable during normal hydrologic conditions in adjoining watersheds; however, this simple model may dramatically overestimate sediment delivery during extreme tributary high flows, especially those at the end of, or after, the "flushing season" (October through April). Previous estimates of annual or seasonal sediment delivery

  5. Paleoproterozoic Collisional Structures in the Hudson Bay Lithosphere Constrained by Multi-Observable Probabilistic Inversion

    Science.gov (United States)

    Darbyshire, F. A.; Afonso, J. C.; Porritt, R. W.

    2015-12-01

    The Paleozoic Hudson Bay intracratonic basin conceals a Paleoproterozoic Himalayan-scale continental collision, the Trans-Hudson Orogen (THO), which marks an important milestone in the assembly of the Canadian Shield. The geometry of the THO is complex due to the double-indentor geometry of the collision between the Archean Superior and Western Churchill cratons. Seismic observations at regional scale show a thick, seismically fast lithospheric keel beneath the entire region; an intriguing feature of recent models is a 'curtain' of slightly lower wavespeeds trending NE-SW beneath the Bay, which may represent the remnants of more juvenile material trapped between the two Archean continental cores. The seismic models alone, however, cannot constrain the nature of this anomaly. We investigate the thermal and compositional structure of the Hudson Bay lithosphere using a multi-observable probabilistic inversion technique. This joint inversion uses Rayleigh wave phase velocity data from teleseismic earthquakes and ambient noise, geoid anomalies, surface elevation and heat flow to construct a pseudo-3D model of the crust and upper mantle. Initially a wide range of possible mantle compositions is permitted, and tests are carried out to ascertain whether the lithosphere is stratified with depth. Across the entire Hudson Bay region, low temperatures and a high degree of chemical depletion characterise the mantle lithosphere. Temperature anomalies within the lithosphere are modest, as may be expected from a tectonically-stable region. The base of the thermal lithosphere lies at depths of >250 km, reaching to ~300 km depth in the centre of the Bay. Lithospheric stratification, with a more-depleted upper layer, is best able to explain the geophysical data sets and surface observables. Some regions, where intermediate-period phase velocities are high, require stronger mid-lithospheric depletion. In addition, a narrow region of less-depleted material extends NE-SW across the Bay

  6. Inorganic carbon cycling and biogeochemical processes in an Arctic inland sea (Hudson Bay)

    Science.gov (United States)

    Burt, William J.; Thomas, Helmuth; Miller, Lisa A.; Granskog, Mats A.; Papakyriakou, Tim N.; Pengelly, Leah

    2016-08-01

    The distributions of carbonate system parameters in Hudson Bay, which not only receives nearly one-third of Canada's river discharge but is also subject to annual cycles of sea-ice formation and melt, indicate that the timing and magnitude of freshwater inputs play an important role in carbon biogeochemistry and acidification in this unique Arctic ecosystem. This study uses basin-wide measurements of dissolved inorganic carbon (DIC) and total alkalinity (TA), as well as stable isotope tracers (δ18O and δ13CDIC), to provide a detailed assessment of carbon cycling processes within the bay. Surface distributions of carbonate parameters reveal the particular importance of freshwater inputs in the southern portion of the bay. Based on TA, we surmise that the deep waters in the Hudson Bay are largely of Pacific origin. Riverine TA end-members vary significantly both regionally and with small changes in near-surface depths, highlighting the importance of careful surface water sampling in highly stratified waters. In an along-shore transect, large increases in subsurface DIC are accompanied by equivalent decreases in δ13CDIC with no discernable change in TA, indicating a respiratory DIC production on the order of 100 µmol kg-1 DIC during deep water circulation around the bay.

  7. Carbonate Chemistry Dynamics in an Area of Active Gas Seepage: the Hudson Canyon, US Atlantic Margin

    Science.gov (United States)

    Garcia-Tigreros Kodovska, F.; Kessler, J. D.; Leonte, M.; Chepigin, A.; Kellermann, M. Y.; Arrington, E. C.; Valentine, D. L.

    2015-12-01

    The fate of oceanic methane and its impact on the global climate has been of particular interest to the global community. The potential for vast amounts of methane to be emitted from the seafloor into the atmosphere due to gas hydrate decomposition has been under scientific evaluation. However, despite the great extent of these geological reservoirs, much of the methane released from the seafloor in deep ocean environments does not reach the atmosphere. Once dissolved in ocean water, the emitted methane can be microbially converted to either carbon dioxide or assimilated to biomass. Here, we will present results from a research cruise to the Hudson Canyon, northern US Atlantic Margin, where we investigated changes in ocean water carbonate chemistry induced by the oxidation of methane released from gas seeps. We will be presenting high precision pH data as well as methane and DIC concentrations, natural stable isotopes, and methane oxidation rates collected inside and adjacent to the Hudson Canyon in the summer of 2014.

  8. Distribution and relative abundance of caribou in the Hudson Plains Ecozone of Ontario

    Directory of Open Access Journals (Sweden)

    Audrey J. Magoun

    2005-05-01

    Full Text Available To determine past distribution and relative abundance of caribou (Rangifer tarandus caribou in the Hudson Plains Ecozone (HPE of Ontario, we reviewed past HPE-wide winter systematic aerial surveys, partial winter systematic surveys, summer photographic surveys, incidental observations of caribou, and other sources of information from the period 1950—2003. We conducted new HPE-wide aerial surveys in February 2003 and 2004 to evaluate current distribution patterns. From this information, we defined 9 core wintering areas in the HPE and differentiated between 3 catego¬ries of relative abundance. Wintering areas for the January—March period have changed relatively little over the past 45 years. Summer distribution of caribou along the Hudson Bay coast apparently shifted or expanded from the area west of the Severn River to the central and eastern portions of the coast since the 1980s, and caribou observations have become much more common in the area east of the Winisk River since 1998. Because major resource development activities in the HPE are proposed and some are imminent, we recommend additional caribou surveys to document current caribou population identity, size, and distribution, and research projects to better define caribou wintering areas, calving areas, and movement patterns in the HPE.

  9. Low PCB concentrations observed in American eel (Anguilla rostrata) in six Hudson River tributaries

    Science.gov (United States)

    Limburg, K.E.; Machut, L.S.; Jeffers, P.; Schmidt, R.E.

    2008-01-01

    We analyzed 73 eels, collected in 2004 and 2005 above the head of tide in six Hudson River tributaries, for total PCBs, length, weight, age, and nitrogen stable isotope ratios (??15N). Mean total PCB concentration (wet weight basis) was 0.23 ppm ?? 0.08 (standard error), with a range of 0.008 to 5.4 ppm. A majority of eels (84) had concentrations below 0.25 ppm, and only seven eels (10%) had concentrations exceeding 0.5 ppm. Those eels with higher PCB concentrations were ???12 yr; there was a weak correlation of PCB concentration with ??15N and also with weight. Compared to recent (2003) data from the mainstem of the Hudson River estuary, these results indicate that tributaries are generally much less contaminated with PCBs. We hypothesize that those tributary eels with high PCB concentrations were relatively recent immigrants from the mainstem. Given concern over the possible adverse effects of PCBs on eel reproduction, these tributaries may serve as refugia. Therefore, providing improved access to upland tributaries may be critically important to this species. ?? 2008 Northeastern Naturalist.

  10. Hudson River Paleoclimate, Sea Level, and Human Impact: A Record From Piermont Marsh, NY

    Science.gov (United States)

    Kurdyla; Peteet, Dorothy; Liberman, Louisa; Sugar; Wong; Hansen, James E. (Technical Monitor)

    2001-01-01

    A 13.77 meter sediment core from Piermont Marsh, NY (40 00 N, 73 55W) records the local and regional vegetational and foraminiferal history of the Hudson Estuary. The sediments were sampled every 4 cm, which represents a decadal to centuryscale resolution. Basal sediment dating is in progress, and the 11-m depth represents about 4000 years. Changes in plant macrofossils and charcoal appear to indicate differences in salinIty and drought, suggesting changes in climate. Scirpus, Salicornia, and high levels of charcoal seem to indicate drier/more saline conditions, while lack of these macrofossils and increases in Chara/Nitella, aquatic leaves, and very little charcoal suggests wetter conditions. Other macrofossils include Carex, Juncus, Polygonum, Zanichellia, Ruppia. High resolution AMS dating of plant macrofossils is in progress, and will be compared with changes in Hudson River sediment cores offshore. Foraminiferal assemblages from key intervals of the core will be presented. Human impact in the upper sediments is visible from the influx of grass seeds, primarily Phragmites, and the ragweed pollen rise.

  11. Impact of impingement on the Hudson River white perch population. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Barnthouse, L.W.; Van Winkle, W.; Kirk, B.L.; Vaughan, D.S.

    1982-02-01

    This report summarizes a series of analyses of the magnitude and biological significance of the impingement of white perch at the Indian Point Nuclear Generating Station and other Hudson River power plants. Included in these analyses were evaluations of: (1) two independent lines of evidence relating to the magnitude of impingement impacts on the Hudson River white perch population; (2) the additional impact caused by entrainment of white perch; (3) data relating to density-dependent growth among young-of-the-year white perch; (4) the feasibility of performing population-level analyses of impingement impacts on the white perch populations of Chesapeake Bay and the Delaware River; and (5) the feasibility of using simple food chain and food web models to evaluate community-level effects of impingement and entrainment. Estimated reductions in the abundances of the 1974 and 1975 white perch year classes, caused by impingement and entrainment, were high enough that the possibility of adverse long-term effects cannot be excluded.

  12. Groundwater quality in the Upper Hudson River Basin, New York, 2012

    Science.gov (United States)

    Scott, Tia-Marie; Nystrom, Elizabeth A.

    2014-01-01

    Water samples were collected from 20 production and domestic wells in the Upper Hudson River Basin (north of the Federal Dam at Troy, New York) in New York in August 2012 to characterize groundwater quality in the basin. The samples were collected and processed using standard U.S. Geological Survey procedures and were analyzed for 148 physiochemical properties and constituents, including dissolved gases, major ions, nutrients, trace elements, pesticides, volatile organic compounds (VOCs), radionuclides, and indicator bacteria. The Upper Hudson River Basin covers 4,600 square miles in upstate New York, Vermont, and Massachusetts; the study area encompasses the 4,000 square miles that lie within New York. The basin is underlain by crystalline and sedimentary bedrock, including gneiss, shale, and slate; some sandstone and carbonate rocks are present locally. The bedrock in some areas is overlain by surficial deposits of saturated sand and gravel. Eleven of the wells sampled in the Upper Hudson River Basin are completed in sand and gravel deposits, and nine are completed in bedrock. Groundwater in the Upper Hudson River Basin was typically neutral or slightly basic; the water typically was moderately hard. Bicarbonate, chloride, calcium, and sodium were the major ions with the greatest median concentrations; the dominant nutrient was nitrate. Methane was detected in 7 samples. Strontium, iron, barium, boron, and manganese were the trace elements with the highest median concentrations. Two pesticides, an herbicide degradate and an insecticide degredate, were detected in two samples at trace levels; seven VOCs, including chloroform, four solvents, and the gasoline additive methyl tert-butyl ether (MTBE) were detected in four samples. The greatest radon-222 activity, 2,900 picocuries per liter, was measured in a sample from a bedrock well; the median radon activity was higher in samples from bedrock wells than in samples from sand and gravel wells. Coliform bacteria were

  13. De vluchtige olie van enkele chemotypen van mentha suaveolens EHRH. en van hybriden met mentha longifolia (L.) HUDSON

    NARCIS (Netherlands)

    Hendriks, Hindrik

    1974-01-01

    De opvatting dat Mentha x piperita L. een bastaard zou zijn van Mentha spicata L. en Mentha aquatica L. werd nader besproken. Hierbij werd Mentha spicata beschouwd als een bastaard van Mentha longifolia (L.) HUDSON en Mentha suaveolens EHRH. ... Zie: Samenvatting.

  14. De vluchtige olie van enkele chemotypen van mentha suaveolens EHRH. en van hybriden met mentha longifolia (L.) HUDSON

    NARCIS (Netherlands)

    Hendriks, Hindrik

    1974-01-01

    De opvatting dat Mentha x piperita L. een bastaard zou zijn van Mentha spicata L. en Mentha aquatica L. werd nader besproken. Hierbij werd Mentha spicata beschouwd als een bastaard van Mentha longifolia (L.) HUDSON en Mentha suaveolens EHRH. ... Zie: Samenvatting.

  15. Declining metal levels at Foundry Cove (Hudson River, New York): Response to localized dredging of contaminated sediments

    Energy Technology Data Exchange (ETDEWEB)

    Mackie, Joshua A. [Moss Landing Marine Laboratories, Invertebrate Zoology, 8272 Moss Landing Road, CA 95039-9647 (United States)], E-mail: jmackie@mlml.calstate.edu; Natali, Susan M.; Levinton, Jeffrey S. [Stony Brook University, Department of Ecology and Evolution, Stony Brook, NY 11794-5245 (United States); Sanudo-Wilhelmy, Sergio A. [Stony Brook University, Department of Ecology and Evolution, Stony Brook, NY 11794-5245 (United States); University of Southern California, Marine and Environmental Biology, Los Angeles, CA 90089-0371 (United States)

    2007-09-15

    This study examines the effectiveness of remediating a well-recognized case of heavy metal pollution at Foundry Cove (FC), Hudson River, New York. This tidal freshwater marsh was polluted with battery-factory wastes (1953-1979) and dredged in 1994-1995. Eight years after remediation, dissolved and particulate metals (Cd, Co, Cu, Pb, Ni, and Ag) were found to be lower than levels in the lower Hudson near New York City. Levels of metals (Co, Ni, Cd) on suspended particles were comparatively high. Concentrations of surface sediment Cd throughout the marsh system remain high, but have decreased both in the dredged and undredged areas: Cd was 2.4-230 mg/kg dw of sediment in 2005 vs. 109-1500 mg/kg in the same area in 1983. The rate of tidal export of Cd from FC has decreased by >300-fold, suggesting that dredging successfully stemmed a major source of Cd to the Hudson River. - Dredging of a hotspot of metal-contaminated sediment is associated with a recognizable local and river-wide decline in cadmium in the Hudson River, New York.

  16. 77 FR 34285 - Safety Zone; 2012 Ironman U.S. Championship Swim, Hudson River, Fort Lee, NJ

    Science.gov (United States)

    2012-06-11

    ... the January 17, 2008, issue of the Federal Register (73 FR 3316). Public Meeting We do not plan now to... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; 2012 Ironman U.S. Championship Swim, Hudson... vicinity of Englewood Cliffs and Fort Lee, NJ for the 2012 Ironman U.S. Championship swim event....

  17. 77 FR 66215 - Notice of Final Federal Agency Actions on the Tappan Zee Hudson River Crossing Project in New York

    Science.gov (United States)

    2012-11-02

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Highway Administration Notice of Final Federal Agency Actions on the Tappan Zee Hudson River Crossing Project in New York Correction In notice document 2012-26799, appearing on page 65929 in the...

  18. 78 FR 59231 - Regulated Navigation Area-Tappan Zee Bridge Construction Project, Hudson River; South Nyack and...

    Science.gov (United States)

    2013-09-26

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA11 Regulated Navigation Area--Tappan Zee Bridge... area (RNA) on the navigable waters of the Hudson River surrounding the Tappan Zee Bridge. This... situation created by the construction of the Tappan Zee Bridge. The Coast Guard has discussed this...

  19. Multiyear total and methyl mercury exports from two major sub-Arctic rivers draining into Hudson Bay, Canada.

    Science.gov (United States)

    Kirk, Jane L; St Louis, Vincent L

    2009-04-01

    From 2003 to 2007, concentrations of total mercury and methylmercury (THg and MeHg) were continuously measured in two Canadian sub-Arctic rivers (the Nelson and the Churchill) that drain into western Hudson Bay. THg and MeHg concentrations were low in the Nelson River (mean i standard deviation, 0.88 +/- 0.33 and 0.05 +/- 0.03 ng L(-1), respectively). The Churchill River, however, had high concentrations of Hg, particularly MeHg (1.96 +/- 0.8 and 0.18 +/- 0.09 ng L(-1), respectively) and hence may be an important source of MeHg to organisms feeding in the Churchill River estuary. A large portion of THg in the Nelson River was particulate-bound (39 +/- 23%), while in the Churchill River, most was in the dissolved form (78 +/- 15%) and is likely dissolved organic carbon (DC)-bound Hg originating in the surrounding wetlands. In fact, both the Nelson and Churchill Rivers had high DOC concentrations and were therefore large exporters of DOC to Hudson Bay (1480 +/- 723 and 392 +/- 309 x 10(3) t year(-1), respectively) compared to rivers to the south and east Despite high Churchill River Hg concentrations, due to large Nelson River flows, average THg and MeHg exports to Hudson Bay from the Churchill River (37 +/- 28 and 4 +/- 4 kg year(-1), respectively) were about one-third and half the Nelson River exports (113 +/- 52 and 9 +/- 4 kg year(-1)). Interestingly, combined Hg exports to Hudson Bay from Nelson and Churchill River discharge are comparable to THg inputs from Hudson Bay springtime snowmelt (177 +/-140 kg year(-1)) but are approximately 13 times greater than MeHg snowmelt inputs (1 +/- 1 kg year(-1)). Although Hg inputs from rivers and snowmelt together may account for a large portion of the THg pool in Hudson Bay, these inputs account for a lesser portion of the MeHg pool, thus highlighting the importance of water column Hg(ll) methylation as a source of MeHg to Hudson Bay marine food webs.

  20. Multi Year Total and Methyl Mercury Exports from Two Major Sub Arctic Rivers Draining into Hudson Bay, Canada

    Science.gov (United States)

    Kirk, J. L.; St. Louis, V. L.

    2009-05-01

    From 2003 to 2007, concentrations of total and methyl mercury (THg and MeHg), were continuously measured in two Canadian sub Arctic rivers (the Nelson and the Churchill) that drain into western Hudson Bay. THg and MeHg concentrations were low in the Nelson River (mean ± standard deviation; 0.88±0.33 and 0.05±0.03 ng/L, respectively). The Churchill River, however, had high concentrations of Hg, particularly MeHg (1.96±0.8 and 0.18±0.09 ng/L, respectively), and hence may be an important source of MeHg to organisms feeding in the Churchill River estuary. A large portion of THg in the Nelson River was particulate- bound (39±23%), while in the Churchill River, most was in the dissolved form (78±15%) and is likely DOC-bound Hg originating in surrounding wetlands. In fact, both the Nelson and Churchill Rivers had high DOC concentrations and were therefore large exporters of DOC to Hudson Bay (1480±723 and 392±309 x 103 tonnes/year, respectively) compared to rivers to the south and east. Despite high Churchill River Hg concentrations, due to large Nelson River flows, average THg and MeHg exports to Hudson Bay from the Churchill River (37±28 and 4±4 kg/year, respectively) were ˜ one third and half Nelson River exports (113±52 and 9±4 kg/year). Interestingly, combined Hg exports to Hudson Bay from Nelson and Churchill River discharge are comparable to THg inputs from Hudson Bay spring-time snowmelt (177±140 kg/year) but are approximately 13 times greater than MeHg snowmelt inputs (1±1 kg/year). Although Hg inputs from rivers and snowmelt together may account for a large portion of the THg pool in Hudson Bay, these inputs account for a lesser portion of the MeHg pool, thus highlighting the importance of water column Hg(II) methylation as a large source of MeHg to Hudson Bay marine foodwebs.

  1. Impact of entrainment and impingement on fish populations in the Hudson River estuary. Volume I. Entrainment-impact estimates for six fish populations inhabiting the Hudson River estuary

    Energy Technology Data Exchange (ETDEWEB)

    Boreman, J.; Barnthouse, L.W.; Vaughn, D.S.; Goodyear, C.P.; Christensen, S.W.; Kumar, K.D.; Kirk, B.L.; Van Winkle, W.

    1982-01-01

    This volume is concerned with the estimation of the direct (or annual) entrainment impact of power plants on populations of striped bass, white perch, Alosa spp. (blueback herring and alewife), American shad, Atlantic tomcod, and bay anchovy in the Hudson River estuary. Entrainment impact results from the killing of fish eggs, larvae, and young juveniles that are contained in the cooling water cycled through a power plant. An Empirical Transport Model (ETM) is presented as the means of estimating a conditional entrainment mortality rate (defined as the fraction of a year class which would be killed due to entrainment in the absence of any other source of mortality). Most of this volume is concerned with the estimation of several parameters required by the ETM: physical input parameters (e.g., power-plant withdrawal flow rates); the longitudinal distribution of ichthyoplankton in time and space; the duration of susceptibility of the vulnerable organisms; the W-factors, which express the ratios of densities of organisms in power plant intakes to densities of organisms in the river; and the entrainment mortality factors (f-factors), which express the probability that an organism will be killed if it is entrained. Once these values are obtained, the ETM is used to estimate entrainment impact for both historical and projected conditions.

  2. Sea Level and Paleoenvironment Control on Late Ordovician Source Rocks, Hudson Bay Basin, Canada

    Science.gov (United States)

    Zhang, S.; Hefter, J.

    2009-05-01

    Hudson Bay Basin is one of the largest Paleozoic sedimentary basins in North America, with Southampton Island on its north margin. The lower part of the basin succession comprises approximately 180 to 300 m of Upper Ordovician strata including Bad Cache Rapids and Churchill River groups and Red Head Rapids Formation. These units mainly comprise carbonate rocks consisting of alternating fossiliferous limestone, evaporitic and reefal dolostone, and minor shale. Shale units containing extremely high TOC, and interpreted to have potential as petroleum source rocks, were found at three levels in the lower Red Head Rapids Formation on Southampton Island, and were also recognized in exploration wells from the Hudson Bay offshore area. A study of conodonts from 390 conodont-bearing samples from continuous cores and well cuttings from six exploration wells in the Hudson Bay Lowlands and offshore area (Comeault Province No. 1, Kaskattama Province No. 1, Pen Island No. 1, Walrus A-71, Polar Bear C-11 and Narwhal South O-58), and about 250 conodont-bearing samples collected from outcrops on Southampton Island allows recognition of three conodont zones in the Upper Ordovician sequence, namely (in ascendant sequence) Belodina confluens, Amorphognathus ordovicicus, and Rhipidognathus symmetricus zones. The three conodont zones suggest a cycle of sea level changes of rising, reaching the highest level, and then falling during the Late Ordovician. Three intervals of petroleum potential source rock are within the Rhipidognathus symmetricus Zone in Red Head Rapids Formation, and formed in a restricted anoxic and hypersaline condition during a period of sea level falling. This is supported by the following data: 1) The conodont Rhipidognathus symmetricus represents the shallowest Late Ordovician conodont biofacies and very shallow subtidal to intertidal and hypersaline condition. This species has the greatest richness within the three oil shale intervals to compare other parts of Red

  3. Winter-time circulation and sediment transport in the Hudson Shelf Valley

    Science.gov (United States)

    Harris, C.K.; Butman, B.; Traykovski, P.

    2003-01-01

    The Hudson Shelf Valley is a bathymetric low that extends across the continental shelf offshore of New York and New Jersey. From December 1999 to April 2000 a field experiment was carried out to investigate the transport of sediment in the shelf and valley system. Near-bed tripods and water-column moorings were deployed at water depths from 38 to 75 m in the axis of the shelf valley and at about 26 m on the adjacent shelves offshore of New Jersey and Long Island, New York. These measured suspended sediment concentrations, current velocities, waves, and water column properties. This paper analyzes observations made during December 1999 and January 2000, and presents the first direct near-bed measurements of suspended sediment concentration and sediment flux from the region. Sediment transport within the Hudson Shelf Valley was coherent over tens of kilometers, and usually aligned with the axis of the shelf valley. Down-valley (off-shore) transport was associated with energetic waves, winds from the east, moderate current velocities (5-10 cm/s), and sea level setup at Sandy Hook, NJ. Up-valley (shoreward) transport occurred frequently, and was associated with winds from the west, low wave energy, high current velocities (20-40 cm/s), and sea level set-down at the coast. Within the shelf valley, net sediment flux (the product of near-bed concentration and velocity) was directed shoreward, up the axis of the valley. Current velocities and suspended sediment fluxes on the New York and New Jersey continental shelves were lower than within the shelf valley, and exhibited greater variability in alignment. Longer term meteorological data indicate that wind, setup, and wave conditions during the study period were more conducive to up-valley transport than seasonal data suggest as average. To relate the observed up-valley sediment flux to observed accumulation of contaminants within the Hudson Shelf Valley requires consideration of transport over longer timescales than those

  4. The changing freshwater regime of the Hudson Bay Drainage Basin: from present to 2070

    Science.gov (United States)

    MacDonald, M. K.; Stadnyk, T. A.; Déry, S.; Braun, M.; Koenig, K. A.

    2016-12-01

    The Hudson Bay Drainage Basin (HBDB) drains over a third of Canada's land mass and contains important hydroelectric infrastructure. Projecting future freshwater discharge in the HBDB is critical for forecasting generating potential, and for understanding potential changes to Hudson Bay sea ice coverage, contaminant, and nutrient cycling. Anticipated changes to the HBDB freshwater regime are characterized for the 2011-2040 and 2041-2070 climate normal periods relative to the baseline period (1981-2010). Existing flow regulation practices are held constant. A regional implementation of the Arctic-HYPE continental scale hydrological model is used. Historical calibration is performed over a split-sample period from 1971-2005 to span a range of climatic conditions. Gauges selected for calibration are non-biased with respect to drainage area covered by eight flow signatures. Lakes are plentiful across the HBDB, few of which are gauged directly at their outlet. A novel approach is used to parameterize lake storage-discharge relationships. K-means cluster analysis is used to group lakes based on similar physiographic characteristics, where they are given common discharge rating curve parameters. Nineteen members of the CMIP5 climate modeling experiment are used for meteorological forcing for discharge projections. Output from the climate models span the range of projected changes to precipitation and temperature over the region. Mean annual temperature is projected to increase by 1.2°C to 5.7°C from the baseline period to 2041-2070, and mean annual precipitation is projected to increase by 3% to 18%. The ensemble mean of discharge projections shows a general increase in mean annual and peak discharge across the HBDB during 2041-2070 compared to the baseline. Peak annual discharge shows the greatest increase over most northern regions of the basin, where there are the fewest hydrometric gauges. Low flows are projected to increase the least to the west of Hudson Bay, with

  5. Transitions in the Colonial Hudson Valley: Capitalist, Bulk Goods, and Braudelian

    Directory of Open Access Journals (Sweden)

    Jonathan Leitner

    2016-03-01

    Full Text Available A long debate about the American “transition to capitalism” was apparently settled via a rough consensus on the gradual prevalence of rural capitalism in the north; and that even small, subsistence-oriented farm households engaged in some market exchange, while market-oriented farm households engaged in some subsistence activities. Yet certain Marxist scholars argue that even prevalent market exchange did not necessarily signify a capitalist economy.  Similarly, certain world-systems scholars see the debates as somewhat pointless, inasmuch as capitalism is a systemic characteristic that exists regardless of any individual identification. These latter notions derive in part from Braudel’s tripartite structure of early modern economic life, which sees self-sufficiency and basic daily survival existing alongside market economies and everyday forms of exchange, with the capitalist world-economy in turn overarching, yet not necessarily affecting, the other two levels.  This paper posits that colonial America’s “transition” to capitalism was effectively the gradual, often contested, and geographically uneven addition of Braudel’s second layer of economic life – the market economy – onto the first layer of self-sufficiency and basic material life; with this process arguably driven by the third layer of the larger capitalist economy, as other recent studies of the colonial Hudson Valley have focused on, albeit while ignoring the region’s diverse and uneven economic geography  It explores the notion of geographically-uneven Braudelian economic structures and transitions within the late 17th and 18th century colonial Hudson Valley, a region of four rather distinct subregions demonstrating that even within relatively small geographical spaces, at least at certain times, one can find different means of Braudelian economic life, and by extension, varying articulations with the world-economy and possible paths to eventual core emergence.

  6. Atmospheric forcing of sea ice in Hudson Bay during the fall period, 1980-2005

    Science.gov (United States)

    Hochheim, K. P.; Barber, D. G.

    2010-05-01

    The principal objective of this study is to describe the autumn sea ice regime of Hudson Bay in the context of atmospheric forcing from 1980 to 2005. Both gridded Canadian Ice Service (CIS) data and Passive Microwave (PMW) data are used to examine the freezeup period for weeks of year (WOY) 43-52. Sea ice concentration (SIC) anomalies reveal statistically significant trends, ranging from -23.3% to -26.9% per decade, during WOY 43-48 using the CIS data and trends ranging from -12.7% to -16.8% per decade during WOY 45-50 using the PMW data. Surface air temperature (SAT) anomalies are highly correlated with SIC anomalies (r2 = 0.52-0.72) and with sea ice extents (r2 = 0.53-0.72). CIS data show that mean sea ice extents based on SICs ≥80% (consolidated ice) have decreased by 1.05 × 105 to 1.17 × 105 km2 for every 1°C increase in temperature in late November; PMW data show similar results. Regression analysis between SAT and standardized climate indices over the 1951-2005 period show that the East Pacific/North Pacific index is highly predictive of interannual SATs followed by the North Atlantic Oscillation and Arctic Oscillation indices. The data show that the Hudson Bay area has recently undergone a climate regime shift, in the mid 1990s, which has resulted in a significant reduction in sea ice during the freezeup period and that these changes appear to be related to atmospheric indices.

  7. Seismological structure of the 1.8 Ga Trans-Hudson Orogen of North America

    Science.gov (United States)

    Gilligan, Amy; Bastow, Ian D.; Darbyshire, Fiona A.

    2016-06-01

    Precambrian tectonic processes are debated: what was the nature and scale of orogenic events on the younger, hotter, and more ductile Earth? Northern Hudson Bay records the Paleoproterozoic collision between the Western Churchill and Superior plates—the ˜1.8 Ga Trans-Hudson Orogeny (THO)—and is an ideal locality to study Precambrian tectonic structure. Integrated field, geochronological, and thermobarometric studies suggest that the THO was comparable to the present-day Himalayan-Karakoram-Tibet Orogen (HKTO). However, detailed understanding of the deep crustal architecture of the THO, and how it compares to that of the evolving HKTO, is lacking. The joint inversion of receiver functions and surface wave data provides new Moho depth estimates and shear velocity models for the crust and uppermost mantle of the THO. Most of the Archean crust is relatively thin (˜39 km) and structurally simple, with a sharp Moho; upper-crustal wave speed variations are attributed to postformation events. However, the Quebec-Baffin segment of the THO has a deeper Moho (˜45 km) and a more complex crustal structure. Observations show some similarity to recent models, computed using the same methods, of the HKTO crust. Based on Moho character, present-day crustal thickness, and metamorphic grade, we support the view that southern Baffin Island experienced thickening during the THO of a similar magnitude and width to present-day Tibet. Fast seismic velocities at >10 km below southern Baffin Island may be the result of partial eclogitization of the lower crust during the THO, as is currently thought to be happening in Tibet.

  8. La foresta tropicale come paradiso perduto: Green Mansions di W.H. Hudson

    Directory of Open Access Journals (Sweden)

    Nicoletta Brazzelli

    2012-05-01

    Full Text Available In W.H. Hudson’s Green Mansions (1904 the mysterious and enchanting quality of the natural world is represented through the writer’s powerful imagination, and the exotic landscape of the South American rainforest is related to British territorial expansion: according to a long-standing literary tradition, the European colonial desire is projected onto remote, unknown places. On the one hand, the pristine forest appears a pure space, a site unspoiled by colonial expansion, the primitive and sacred world nourishing Western exotic dreams. On the other hand, by revisiting the myth of the lost paradise, Hudson conveys the late nineteenth-early twentieth century European perception of the tropical world, a patchwork of Charles Darwin’s theories, Biblical echoes and colonial ideology. Abel surrenders to the influence of the wild, ventures into the weird and entangled forest, seemingly refusing male invasion and domination. Rima’s subsequent death symbolizes the ecological catastrophe brought about by the Europeans in the primitive world of South America: the feathered bird-girl is assimilated to an Edenic being at the mercy of destructive forces. At the same time, Abel’s wish to possess the land reinforces the colonial viewpoint of the narration, while the movement from civilization to the wilderness implies the representation of a Darwinian struggle. Hudson frames the tropical space as substantially ambiguous, attractive and destructive for both colonizers and colonized, and through his narrative he introduces the fear of natural loss in the extreme form of the extinction of the green world.

  9. Mechanisms Responsible for the Observed Thermodynamic Structure in a Convective Boundary Layer Over the Hudson Valley of New York State

    Science.gov (United States)

    Freedman, Jeffrey M.; Fitzjarrald, David R.

    2017-02-01

    We examine cases of a regional elevated mixed layer (EML) observed during the Hudson Valley Ambient Meteorology Study (HVAMS) conducted in New York State, USA in 2003. Previously observed EMLs referred to topographic domains on scales of 105 -106 km2 . Here, we present observational evidence of the mechanisms responsible for the development and maintenance of regional EMLs overlying a valley-based convective boundary layer (CBL) on much smaller spatial scales (deployed during the HVAMS, we show that cross-valley horizontal advection, along-valley channelling, and fog-induced cold-air pooling are responsible for the formation and maintenance of the EML and valley-CBL coupling over New York State's Hudson Valley. The upper layer stability of the overlying EML constrains growth of the valley CBL, and this has important implications for air dispersion, aviation interests, and fog forecasting.

  10. OTOLITH MICROCHEMISTRY INDICATES UNEXPECTED PATTERNS OF RESIDENCY AND ANADROMY IN BLUEBACK HERRING, ALOSA AESTIVALIS, IN THE HUDSON AND MOHAWK RIVERS.

    Directory of Open Access Journals (Sweden)

    LIMBURG K. E.

    2001-07-01

    PIXE, providing a detailed time series of data on the Sr:Ca, and thus habitat use history, of the fish. We also analyzed otoliths of Mohawk and Hudson River young-of-year (YOY. The Sr:Ca ratios of Mohawk YOY are slightly but significantly higher than those of Hudson YOY. Life history transects for 51 adults show complex patterns of Sr:Ca, indicating that many of the fish move into salt water at least for brief periods. However, many fish appear to spend extended parts of their post-YOY lives in fresh water, and at least two adults (caught in the Mohawk near Rome, NY appear never to have changed habitats at all. This is thus the first demonstration of residency in Mohawk River herring.

  11. Hydrological Research in Hudson Bay,Canada%加拿大Hudson海湾地区的水文研究

    Institute of Scientific and Technical Information of China (English)

    William A.Gough

    2004-01-01

    Hudson Bay streamflow represents a major component of the streamflow in Canada, approximately 30% of all river discharge enters Hudson and James Bays. Three current hydrological research issues are examined for this region. First the relationship between streamflow and local climate change is reviewed. Second the impact of river discharge in James Bay is linked to sea level variations in Churchill, Manitoba and the implications of this on Hudson Bay recirculation are explored. Finally, the historical and projected sea level variations in the Bay are examined with particular emphasis on the Churchill, Manitoba record. The report is concluded by a discussion of future directions for hydrological research in the Hudson Bay region.%Hudson海湾的河川径流量在整个加拿大河川径流量中占有很大的比例,所有河流排泄量约30%流入了Hudson和James海湾.研究了该地区河川径流与当地气候变化之间的关系;把河川向James海湾的排泄与曼尼托巴省Churchill地区海水位的变化联系起来,讨论了其对Hudson海湾再循环的影响;根据曼尼托巴省Churchill地区海水位的观测资料重点讨论了该地区海水位在历史时期的变化及未来的预测变化等三个重要水文问题.最后指出了今后在Hudson海湾地区进行水文研究的方向.

  12. Polychlorinated biphenyls (PCBs) in adult and juvenile mallards (Anas platyrhynchos) from the Hudson River, New York, USA.

    Science.gov (United States)

    Madden, Sean S; Skinner, Lawrence C

    2016-09-01

    The Hudson River, NY, USA is contaminated for over 300 km with polychlorinated biphenyls (PCBs) released from two General Electric (GE) capacitor plants. We collected adult and juvenile mallards (Anas platyrhynchos) from four different areas of the river; an area upstream of the GE plants (n = 38), two areas directly downstream of the GE plants (n = 41, n = 38), and an area more than 100 km downstream in the freshwater tidal river (n = 20). Collections occurred during July and August (2008) when ducks were flightless to ensure ducks were "resident" and exposures were local. Fat and muscle tissue were analyzed for PCBs. PCBs were detected in all samples, and mallards below the GE plant sites on the Hudson River had orders of magnitude higher concentrations of PCBs than those above the plants. Juvenile mallards from areas directly downstream of the GE plant sites tended to have higher PCB concentrations in fat than adults. The patterns of PCB congeners and homolog groups varied across the study areas, with areas directly downstream of the GE plants dominated by tetra-chloro biphenyls whereas samples from upstream and the freshwater tidal river tended towards higher chlorinated congeners. Congener patterns between male and female and juvenile and adult mallards were generally similar within study areas, with the exception of one area downstream of the GE plants where adult birds exhibited different patterns than juveniles. Evidence of PCBs from the GE plant sites was detected in the tidal Hudson River, more than 100 km downstream of the plant sites. More than 90% of the ducks collected in areas downstream of the GE plants but above the tidally influenced river exceed the USFDA tolerance level for PCBs in poultry, which should be a concern for consumers of waterfowl taken in proximity to the upper Hudson River.

  13. Distributions of polyhalogenated compounds in Hudson River (New York, USA) fish in relation to human uses along the river

    Energy Technology Data Exchange (ETDEWEB)

    Skinner, Lawrence C., E-mail: lxskinne@gw.dec.state.ny.us [New York State Department of Environmental Conservation, 625 Broadway, Albany, NY 12233 (United States)

    2011-10-15

    PCBs (as Aroclor concentrations) have been extensively examined in fish along the Hudson River, but other xenobiotic chemicals in fish have had limited assessment. This study determined concentrations and congener distributions of polybrominated diphenyl ethers (PBDEs), polybrominated and polychlorinated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs and PCDD/Fs), and polychlorinated biphenyls (PCBs) in smallmouth bass and striped bass taken from a 385 km reach of the Hudson River. Concentrations of PBDEs and PCBs in smallmouth bass, and PCBs in striped bass, were positively related to human uses of the compounds in the basin. Generally low levels of PCDD/Fs were found. One striped bass, however, contained elevated 2,3,7,8-TCDD, indicating exposure to a known source in the adjacent Newark Bay-Passaic River basin. PBDDs were generally below detection. PBDFs were present in four of 18 smallmouth bass, but were not detected in striped bass. Dioxin-like PCBs contribute most to 2,3,7,8-TCDD toxic equivalents in 29 of 30 samples. - Highlights: > In the Hudson River, > PBDEs in smallmouth bass follow human population patterns, but do not for striped bass. > Proximity to known PCB sources govern PCB levels and patterns in fish. > PBDFs were in smallmouth bass but not striped bass. PBDDs were present in one fish. > PCDD/Fs were low in 29 of 30 fish. A 2,3,7,8-TCDD source affected one striped bass. > PCBs contribute most to 2,3,7,8-TCDD toxic equivalents in 29 of 30 samples. - Residues of polyhalogenated compounds in resident and migratory fish from the Hudson River are compared with human uses of the compounds in the river basin.

  14. Catastrophic meltwater discharge down the Hudson Valley: a potential trigger for the Intra-Allerød cold period

    Science.gov (United States)

    Donnelly, Jeffrey P.; Driscoll, Neal W.; Uchupi, Elazar; Keigwin, Loyd D.; Schwab, William C.; Thieler, E. Robert; Swift, Stephen A.

    2005-01-01

    Glacial freshwater discharge to the Atlantic Ocean during deglaciation may have inhibited oceanic thermohaline circulation, and is often postulated to have driven climatic fluctuations. Yet attributing meltwater-discharge events to particular climate oscillations is problematic, because the location, timing, and amount of meltwater discharge are often poorly constrained. We present evidence from the Hudson Valley and the northeastern U.S. continental margin that establishes the timing of the catastrophic draining of Glacial Lake Iroquois, which breached the moraine dam at the Narrows in New York City, eroded glacial lake sediments in the Hudson Valley, and deposited large sediment lobes on the New York and New Jersey continental shelf ca. 13,350 yr B.P. Excess 14C in Cariaco Basin sediments indicates a slowing in thermohaline circulation and heat transport to the North Atlantic at that time, and both marine and terrestrial paleoclimate proxy records around the North Atlantic show a short-lived (<400 yr) cold event (Intra-Aller??d cold period) that began ca. 13,350 yr B.P. The meltwater discharge out the Hudson Valley may have played an important role in triggering the Intra-Aller??d cold period by diminishing thermohaline circulation. ?? 2005 Geological Society of America.

  15. Latest Holocene evolution and human disturbance of a channel segment in the Hudson River Estuary

    Science.gov (United States)

    Klingbeil, A.D.; Sommerfield, C.K.

    2005-01-01

    The latest Holocene sedimentary record of a cohesive channel and subtidal shoal in the lower Hudson River Estuary was examined to elucidate natural (sea-level rise, sediment transport) and anthropogenic (bulkheading, dredging) influences on the recent morphodynamic evolution of the system. To characterize the seafloor and shallow subbottom, ??? 100 km of high-resolution seismic reflection profiles (chirp) were collected within a 20-km reach of the estuary and correlated with sediment lithologies provided by eight vibracores recovered along seismic lines. Sediment geochronology with 137Cs and 14C was used to estimate intermediate and long-term sedimentation rates, respectively, and historical bathymetric data were analyzed to identify regional patterns of accretion and erosion, and to quantify changes in channel geometry and sediment volume. The shoal lithosome originated around 4 ka presumably with decelerating eustatic sea level rise during the latest Holocene. Long-term sedimentation rates on the shoal (2.3-2.6 mm/yr) are higher than in the channel (2 mm/yr) owing to hydrodynamic conditions that preferentially sequester suspended sediment on the western side of the estuary. As a result, the shoal accretes oblique to the principal axis of tidal transport, and more rapidly than the channel to produce an asymmetric cross-section. Shoal deposits consist of tidally bedded muds and are stratified by minor erosion surfaces that seismic profiles reveal to extend for 10s of meters to kilometers. The frequency and continuity of these surfaces suggest that the surficial shoal is catastrophically stripped on decadal-centennial time scales by elevated tidal flows; tidal erosion maintains the shoal at a uniform depth below sea level and prevents it from transitioning to an intertidal environment. Consequently, the long-term sedimentation rate approximates the rate of sea-level rise in the lower estuary (1-3 mm/yr). After the mid 1800s, the natural geometry of the lower Hudson

  16. Hudson Canyon benthic habitats characterization and mapping by integrated analysis of multidisciplinary data

    Science.gov (United States)

    Pierdomenico, Martina; Guida, Vincent G.; Rona, Peter A.; Macelloni, Leonardo; Scranton, Mary I.; Asper, Vernon; Diercks, Arne

    2013-04-01

    Hudson Canyon, about 180 km SE of New York City, is the largest eastern U.S. submarine canyon and is under consideration for HAPC (Habitat Area of Particular Concern) status, representing a fisheries and biodiversity hot spot. Interest in the area, within the perspective of ecosystem based management, marine spatial planning, habitat and species conservation, led to a joint project between NOAA Northeast Fisheries, U.S. Geological Survey (USGS), Mississippi Mineral Research Institute (MMRI), National Institute for Undersea Science and Technology (NIUST), Stony Brook and Rutgers Universities for the study of benthic habitats, that includes the assembly of existing data with newly collected ones: acoustic mapping, visual ground-truthing, hydrographic, sedimentological, and trawl data collections. Acoustic mapping, performed using AUV-mounted multibeam sonar, provided ultra-high resolution bathymetric and backscatter imagery (3m and 1m respectively) at all water depths for identification of geomorphological features and for the characterization of surficial sediments along the two thirds of the shelf portion of the canyon. Identification of benthic and demersal communities was accomplished by visual ground thruthing with underwater vehicle video and still cameras, and from trawl catch data. A CTD-rosette sampler provided water column salinity-temperature profiles and water samples for dissolved methane analysis in the vicinity of suspected bottom sources. Analysis of data revealed a complex of topographic structures and hydrological patterns that provide a wide range of physical habitats in a relatively small area. A mosaic of sandy and muddy substrates, gravel beds, rock outcrops, and semilithified clay outcrops host rich and varied faunal assemblages, including deepwater corals and sponge communities. Pockmark fields, occurring below 300 m depth, suggest that methane-based chemosynthetic carbonate deposition contributes to creation of specific hard bottom habitats

  17. Variation of upper layer dynamics during breakup of the seasonal ice cover in Hudson Bay

    Science.gov (United States)

    Lepage, Serge; Ingram, R. Grant

    1991-07-01

    The present study describes circulation and stratification changes associated with the melt and breakup of the seasonal ice cover in the coastal waters of southeast Hudson Day. Field work was carried out at a station located 25 km north of the Great Whale River. Buoyancy fluxes and dissipation rates were calculated as well as changes in potential energy. Surface velocity data were partitioned into frequency bands and complex demodulated. Throughout the sampling period, most of the current energy was found to be in the semi-diurnal tidal band. After ice breakup, however, low frequency and inertial motions became relatively more important in response to direct wind forcing at the sea surface. Changes in amplitudes and phases of the major tidal constituents occurred and are related to the presence of the sea ice cover. Between early April and mid-June, semi-diurnal current amplitude doubled while its phase shifted by 45 to 60 degrees. In early June, the ice cover was sufficiently dispersed to allow the surface turbulence to overcome the buoyancy flux and mix the upper water column.

  18. Magnitude and Seasonality of Wetland Methane Emissions from the Hudson Bay Lowlands (Canada)

    Science.gov (United States)

    Pickett-Heaps, C. A.; Jacob, D. J.; Wecht, K. J.; Kort, E. A.; Wofsy, S. C.; Diskin, G. S.; Worthy, D. E. J.; Kaplan, J. O.; Bey, I.; Drevet, J.

    2011-01-01

    The Hudson Bay Lowlands (HBL) is the second largest boreal wetland ecosystem in the world and an important natural source of global atmospheric methane. We quantify the HBL methane emissions by using the GEOS-Chem chemical transport model to simulate aircraft measurements over the HBL from the ARCTAS and pre-HIPPO campaigns in May-July 2008, together with continuous 2004-2008 surface observations at Fraserdale (southern edge of HBL) and Alert (Arctic background). The difference in methane concentrations between Fraserdale and Alert is shown to be a good indicator of HBL emissions, and implies a sharp seasonal onset of emissions in late May (consistent with the aircraft data), a peak in July-August, and a seasonal shut-off in September. The model, in which seasonal variation of emission is mainly driven by surface temperature, reproduces well the observations in summer but its seasonal shoulders are too broad. We suggest that this reflects the suppression of emissions by snow cover and greatly improve the model simulation by accounting for this effect. Our resulting best estimate for HBL methane emissions is 2.3 Tg/a, several-fold higher than previous estimates (Roulet et al., 1994; Worthy et al., 2000).

  19. Bathymetric controls on sediment transport in the Hudson River estuary: Lateral asymmetry and frontal trapping

    Science.gov (United States)

    Ralston, David K.; Geyer, W. Rockwell; Warner, John C.

    2012-01-01

    Analyses of field observations and numerical model results have identified that sediment transport in the Hudson River estuary is laterally segregated between channel and shoals, features frontal trapping at multiple locations along the estuary, and varies significantly over the spring-neap tidal cycle. Lateral gradients in depth, and therefore baroclinic pressure gradient and stratification, control the lateral distribution of sediment transport. Within the saline estuary, sediment fluxes are strongly landward in the channel and seaward on the shoals. At multiple locations, bottom salinity fronts form at bathymetric transitions in width or depth. Sediment convergences near the fronts create local maxima in suspended-sediment concentration and deposition, providing a general mechanism for creation of secondary estuarine turbidity maxima at bathymetric transitions. The lateral bathymetry also affects the spring-neap cycle of sediment suspension and deposition. In regions with broad, shallow shoals, the shoals are erosional and the channel is depositional during neap tides, with the opposite pattern during spring tides. Narrower, deeper shoals are depositional during neaps and erosional during springs. In each case, the lateral transfer is from regions of higher to lower bed stress, and depends on the elevation of the pycnocline relative to the bed. Collectively, the results indicate that lateral and along-channel gradients in bathymetry and thus stratification, bed stress, and sediment flux lead to an unsteady, heterogeneous distribution of sediment transport and trapping along the estuary rather than trapping solely at a turbidity maximum at the limit of the salinity intrusion.

  20. Accumulation of polychlorinated biphenyls in american shad during their migration in the Hudson River, spring 1977.

    Science.gov (United States)

    Pastel, M; Bush, B; Kim, J S

    1980-06-01

    Fifty-two female American shad (Alosa sapidissima) were collected during the spring of 1977 at two sites on the lower Hudson River, 27 miles and 75 miles from the river mouth. The fish were extracted with hexane, and the extracts were analyzed by electron-capture gas chromatography (EC-GC) and by GC/mass spectrometry (MS), PCBs were quantitated by EC-GC, and the concentrations were compared by fish length and by site. Fish collected from the downstream site contained a mean PCB concentration of 2.0 +/- 1.0 microgram/g, wet weight; fish from the upstream site contained a mean PCB concentration of 6.1 +/- 2.6 microgram/g, wet weight. Aliquots of the hexane extracts were fractionated before analysis by GC/MS. The presence of PCBs was confirmed, and DDE and the alkane series from C22 through C26 were detected. American shad are saltwater fish that only enter fresh water to spawn. Because they do not feed in fresh water before spawning, they may be used as an indicator of water contamination.

  1. Magnitude and seasonality of wetland methane emissions from the Hudson Bay Lowlands (Canada

    Directory of Open Access Journals (Sweden)

    C. A. Pickett-Heaps

    2011-04-01

    Full Text Available The Hudson Bay Lowlands (HBL is the second largest boreal wetland ecosystem in the world and an important natural source of global atmospheric methane. We quantify the HBL methane emissions by using the GEOS-Chem chemical transport model to simulate aircraft measurements over the HBL from the ARCTAS and pre-HIPPO campaigns in May–July 2008, together with continuous 2004–2008 surface observations at Fraserdale (southern edge of HBL and Alert (Arctic background. The difference in methane concentrations between Fraserdale and Alert is shown to be a good indicator of HBL emissions, and implies a sharp seasonal onset of emissions in late May (consistent with the aircraft data, a peak in July–August, and a seasonal shut-off in September. The model, in which seasonal variation of emission is mainly driven by surface temperature, reproduces well the observations in summer but its seasonal shoulders are too broad. We suggest that this reflects the suppression of emissions by snow cover and greatly improve the model simulation by accounting for this effect. Our resulting best estimate for HBL methane emissions is 2.3 Tg a−1, several-fold higher than previous estimates (Roulet et al., 1994; Worthy et al., 2000.

  2. A simulation of the Cerro Hudson SO[sub 2] cloud

    Energy Technology Data Exchange (ETDEWEB)

    Schoeberl, M.R.; Lait, L.R.; Newman, P.A.; Krueger, A.J. (NASA Goddard Space Flight Center, Greenbelt, MD (United States)); Doiron, S.D. (Hughes STX Corp., Lanham, MD (United States))

    1993-02-20

    An isentropic trajectory model is used to simulate the evolution of the southern hemisphere SO[sub 2] cloud associated with the eruption of Cerro Hudson. By matching the parcel trajectories with total ozone mapping spectrometer SO[sub 2] retrievals, the principal stratospheric injection region is determined to be between 11 and 16 km in altitude. This region is characterized by weak wind shears and is located just poleward of the subtropical jet in the outer fringe of the stratospheric polar vortex. The lack of wind shear in the injection region explains the slow zonal dispersal of the SO[sub 2] cloud which was still clearly observed 19 days after the eruption. The trajectory model simulation of the SO[sub 2] cloud shows good agreement with observations for 7 days after the eruption. Using the potential vorticity and potential temperature estimates of the initial eruption cloud, the cloud position relative to the polar night jet is shown to be nearly fixed up to September 2, 1991, which was as long as the cloud was observed. This result suggests that the lower stratopsheric polar and mid-latitude regions are nearly isolated from each other during the late August period. 9 refs., 5 figs.

  3. Ground-Water Quality in the Upper Hudson River Basin, New York, 2007

    Science.gov (United States)

    Nystrom, Elizabeth A.

    2009-01-01

    Water samples were collected from 25 production and domestic wells in the Upper Hudson River Basin (north of the Federal Dam at Troy, N.Y.) from August through November 2007 to characterize the ground-water quality. The Upper Hudson River Basin covers 4,600 square miles in upstate New York, Vermont, and Massachusetts; the study area encompasses the 4,000 square miles that lie within New York. The basin is underlain by crystalline and sedimentary bedrock, including gneiss, shale, and slate; some sandstone and carbonate rocks are present locally. The bedrock in some areas is overlain by surficial deposits of saturated sand and gravel. Of the 25 wells sampled, 13 were finished in sand and gravel deposits, and 12 were finished in bedrock. The samples were collected and processed by standard U.S. Geological Survey procedures and were analyzed for 225 physical properties and constituents, including major ions, nutrients, trace elements, radon-222, pesticides, volatile organic compounds (VOCs), and indicator bacteria. Water quality in the study area is generally good, but concentrations of some constituents exceeded current or proposed Federal or New York State drinking-water standards; these were: color (1 sample), pH (2 samples), sodium (5 samples), nitrate plus nitrite (2 samples), aluminum (3 samples), iron (1 sample), manganese (7 samples), radon-222 (11 samples), and bacteria (1 sample). Dissolved-oxygen concentrations in samples from wells finished in sand and gravel [median 5.4 milligrams per liter (mg/L)] were greater than those from wells finished in bedrock (median 0.4 mg/L). The pH of all samples was typically neutral or slightly basic (median 7.6); the median water temperature was 9.7 deg C. The ions with the highest concentrations were bicarbonate (median 123 mg/L) and calcium (median 33.9 mg/L). Ground water in the basin is generally soft to moderately hard (less than or equal to 120 mg/L as CaCO3) (median hardness 110 mg/L as CaCO3). Concentrations of

  4. Sedimentary facies, geomorphic features and habitat distribution at the Hudson Canyon head from AUV multibeam data

    Science.gov (United States)

    Pierdomenico, Martina; Guida, Vincent G.; Macelloni, Leonardo; Chiocci, Francesco L.; Rona, Peter A.; Scranton, Mary I.; Asper, Vernon; Diercks, Arne

    2015-11-01

    Mapping of physical benthic habitats at the head of Hudson Canyon was performed by means of integrated analysis of acoustic data, video surveys and seafloor sampling. Acoustic mapping, performed using AUV-mounted multibeam sonar, provided ultra-high resolution bathymetric and backscatter imagery for the identification of geomorphological features and the characterization of surficial sediments. Habitat characterization in terms of seafloor texture and identification of benthic and demersal communities was accomplished by visual analysis of still photographs from underwater vehicles. Habitat classes were defined on the basis of the seafloor texture observed on photos and then compared with the geophysical data in order to associate habitats to acoustic classes and/or geomorphological features. This enabled us to infer habitat distribution on the basis of morpho-acoustic classes and extrapolate results over larger areas. Results from bottom trawling were used to determine the overall biodiversity within the identified habitats. Our analysis revealed a variety of topographic and sedimentological structures that provide a wide range of physical habitats. A variety of sandy and muddy substrates, gravel patches and mudstone outcrops host rich and varied faunal assemblages, including cold-water corals and sponge communities. Pockmark fields below 300 m depth suggest that methane-based chemosynthetic carbonate deposition may contributes to creation of specific benthic habitats. Hummocky terrain has been delineated along the canyon rims and associated with extensive, long-term burrowing activity by golden tilefish (Lopholatilus chamaeleonticeps). These results show the relationships of physical features to benthic habitat variation, support the notion of the area as a biodiversity hotspot and define essential habitats for planning of sustainable regional fisheries.

  5. The vertical structure of the circulation and dynamics in Hudson Shelf Valley

    Science.gov (United States)

    Lentz, Steven J.; Butman, Bradford; Harris, Courtney K.

    2014-01-01

    Hudson Shelf Valley is a 20–30 m deep, 5–10 km wide v-shaped submarine valley that extends across the Middle Atlantic Bight continental shelf. The valley provides a conduit for cross-shelf exchange via along-valley currents of 0.5 m s−1 or more. Current profile, pressure, and density observations collected during the winter of 1999–2000 are used to examine the vertical structure and dynamics of the flow. Near-bottom along-valley currents having times scales of a few days are driven by cross-shelf pressure gradients setup by wind stresses, with eastward (westward) winds driving onshore (offshore) flow within the valley. The along-valley momentum balance in the bottom boundary layer is predominantly between the pressure gradient and bottom stress because the valley bathymetry limits current veering. Above the bottom boundary layer, the flow veers toward an along-shelf (cross-valley) orientation and a geostrophic balance with some contribution from the wind stress (surface Ekman layer). The vertical structure and strength of the along-valley current depends on the magnitude and direction of the wind stress. During offshore flows driven by westward winds, the near-bottom stratification within the valley increases resulting in a thinner bottom boundary layer and weaker offshore currents. Conversely, during onshore flows driven by eastward winds the near-bottom stratification decreases resulting in a thicker bottom boundary layer and stronger onshore currents. Consequently, for wind stress magnitudes exceeding 0.1 N m−2, onshore along-valley transport associated with eastward wind stress exceeds the offshore transport associated with westward wind stress of the same magnitude.

  6. Tsunami hazard assessment in the Hudson River Estuary based on dynamic tsunami-tide simulations

    Science.gov (United States)

    Shelby, Michael; Grilli, Stéphan T.; Grilli, Annette R.

    2016-12-01

    This work is part of a tsunami inundation mapping activity carried out along the US East Coast since 2010, under the auspice of the National Tsunami Hazard Mitigation program (NTHMP). The US East Coast features two main estuaries with significant tidal forcing, which are bordered by numerous critical facilities (power plants, major harbors,...) as well as densely built low-level areas: Chesapeake Bay and the Hudson River Estuary (HRE). HRE is the object of this work, with specific focus on assessing tsunami hazard in Manhattan, the Hudson and East River areas. In the NTHMP work, inundation maps are computed as envelopes of maximum surface elevation along the coast and inland, by simulating the impact of selected probable maximum tsunamis (PMT) in the Atlantic ocean margin and basin. At present, such simulations assume a static reference level near shore equal to the local mean high water (MHW) level. Here, instead we simulate maximum inundation in the HRE resulting from dynamic interactions between the incident PMTs and a tide, which is calibrated to achieve MHW at its maximum level. To identify conditions leading to maximum tsunami inundation, each PMT is simulated for four different phases of the tide and results are compared to those obtained for a static reference level. We first separately simulate the tide and the three PMTs that were found to be most significant for the HRE. These are caused by: (1) a flank collapse of the Cumbre Vieja Volcano (CVV) in the Canary Islands (with a 80 km3 volume representing the most likely extreme scenario); (2) an M9 coseismic source in the Puerto Rico Trench (PRT); and (3) a large submarine mass failure (SMF) in the Hudson River canyon of parameters similar to the 165 km3 historical Currituck slide, which is used as a local proxy for the maximum possible SMF. Simulations are performed with the nonlinear and dispersive long wave model FUNWAVE-TVD, in a series of nested grids of increasing resolution towards the coast, by one

  7. Adenomatous hyperplasia of the thyroid gland in beluga whales (Delphinapterus leucas) from the St. Lawrence Estuary and Hudson Bay, Quebec, Canada.

    Science.gov (United States)

    Mikaelian, I; Labelle, P; Kopal, M; De Guise, S; Martineau, D

    2003-11-01

    We evaluated thyroid gland lesions in beluga whales (Delphinapterus leucas) from the St. Lawrence Estuary (n = 16) and Hudson Bay (n = 14). Follicular cysts and nodules of adenomatous hyperplasia of the thyroid gland were found in eight and nine adults from the St. Lawrence Estuary (n = 10), respectively, and in four and six adults from Hudson Bay (n = 14), respectively. The total volume of the lesions of thyroid adenomatous hyperplasia was positively correlated with age in both populations. Comparison between populations could not be performed because of differences in age structures of sample groups. Beluga whales from both populations have unique thyroid lesions among marine mammals.

  8. Interpretación de algunas cárices (Carex L.) de la Flora Anglica de W. Hudson y tipificación de tres nombres relacionados

    OpenAIRE

    Molina González, Ana María; Acedo, Carmen; Llamas García, Félix

    2007-01-01

    Se discute la identidad de once especies y seis taxones infraespecíficos del género Carex tratados por Hudson en la Flora Anglica. Se estudia la obra de este autor, comparándola con los protólogos de Linneo y otros botánicos contemporáneos y se indica en cada caso el nombre en uso actual. Cinco especies, que Hudson llamó Carex acuta, C. brizoides, C. inflata en el sentido de la segunda edición , C. muricata y C. saxatilis, corresponden a taxones sin describir en aquel momento y actualmente s...

  9. Groups of related belugas (Delphinapterus leucas) travel together during their seasonal migrations in and around Hudson Bay.

    Science.gov (United States)

    Colbeck, Gabriel J; Duchesne, Pierre; Postma, Lianne D; Lesage, Véronique; Hammill, Mike O; Turgeon, Julie

    2013-02-07

    Social structure involving long-term associations with relatives should facilitate the learning of complex behaviours such as long-distance migration. In and around Hudson Bay (Canada), three stocks of beluga whales form a panmictic unit, but have different migratory behaviours associated with different summering areas. We analysed genetic variation at 13 microsatellite loci among 1524 belugas, to test hypotheses about social structure in belugas. We found significant proportions of mother-offspring pairs throughout the migratory cycle, but average relatedness extended beyond close kinship only during migration. Average relatedness was significantly above random expectations for pairs caught at the same site but on different days or months of a year, suggesting that belugas maintain associations with a network of relatives during migration. Pairs involving a female (female-female or male-female) were on average more related than pairs of males, and males seemed to disperse from their matrilineal group to associate with other mature males. Altogether, our results indicate that relatives other than strictly parents, and especially females, play a role in maintaining a social structure that could facilitate the learning of migration routes. Cultural conservatism may limit contributions from nearby summer stocks to endangered stocks such as the Eastern Hudson Bay beluga.

  10. The role of lichen on peatland development in the Hudson Bay Lowlands, Canada

    Science.gov (United States)

    Harris, Lorna; Moore, Tim; Roulet, Nigel

    2015-04-01

    Lichen (Cladina stellaris) can be a dominant vegetation cover on bogs within the extensive peatland landscape of the Hudson Bay Lowlands (HBL), northern Ontario, Canada. The unique characteristics of lichens (growth structure and function as a symbiotic organism), their ability to form thick, dense mats across the HBL bogs, and their increased tolerance of extreme environmental conditions, points to their importance as a distinct plant functional type. However, the role of lichen within the peatland ecosystem is poorly understood, particularly ecosystem interactions (vegetation associations) and peatland development (including microtopography) and the resulting carbon sink. Many studies consider the role of different plant functional types on peatland CO2 and CH4 exchange (e.g. Bubier et al., 2003; Strack et al., 2006), and this understanding is included in peatland growth and climate change models. As far as we are aware lichens are currently omitted from these models. We suggest that lichens represent a distinct plant functional type with CO2 exchange characteristics (NEE and respiration) that are quite different to vascular plants and mosses. In this study we measured lichen CO2 exchange in both natural and modified moisture conditions at field sites in the HBL over two field seasons. Our results indicate that lichen productivity is strongly influenced by abiotic factors that affect lichen moisture content, with very dry lichen exhibiting little or no photosynthetic capacity. We suggest that the low productivity of lichen mats results in lower rates of peat accumulation compared to Sphagnum-dominated peatland areas, and that this has consequences for the development of peatland microtopography (hummocks and hollows) and feedback mechanisms. To better understand the role of lichen mats on peat accumulation and to test possible feedback mechanisms we developed a model, the parameters of which are supported by data from field sites in the HBL. This dependence of

  11. Circulation in the Hudson Shelf Valley: MESA Physical Oceanographic Studies in New York Bight, 1

    Science.gov (United States)

    Mayer, Dennis A.; Han, Gregory C.; Hansen, Donald V.

    1982-11-01

    Over 900 days of current velocity data were obtained at mainly two locations in the inner and outer Hudson Shelf Valley (HSV). The large cross-axis depth gradients in the HSV, together with the strong winter cyclones and the baroclinic density distribution over the shelf, are primarily responsible for the major circulation features observed in the valley. CSTD data from 12 cruises and meteorological data from JFK International Airport and an environmental buoy were collected concurrently with the current meter data. Although the mean cross-shelf pressure gradient is generally seaward in the Middle Atlantic Bight, it is shoreward in the HSV below the level of the adjacent continental shelf (shelf horizon), thus imposing a bias toward upvalley flow. The average velocity below the surrounding shelf horizon in the HSV is upvalley or shoreward (west-northwestward ≈ 290° T) in the range of 2-5 cm/s. The circulation in the HSV is seasonal and individual events can drastically alter the mean picture. The several day average upvalley flow can sometimes approach 20 cm/s when intense winter cyclones pass over the bight and can sometimes also be directed downvalley depending upon the path of the winter cyclone. A topographically controlled barotropic flow commonly opposes the dominant (southeast-ward) wind direction even near the surface in the winter. In the context of circulation on the open shelf, upvalley (downvalley) flow events generated by winter cyclones are associated with reduced (enhanced) southwestward flow or flow reversals that are northeastward in the lower half of the water column at LTM, a typical mid/shelf site (Mayer et al., 1979). Current meter data suggest that whether or not reversals occur on the open shelf depends upon the interannual variability of the winter wind regime. Upvalley flow events are not confined only to the winter (unstratified) season but are stronger in the winter and can last for several days and longer. During the summer

  12. Building sustainable communities using sense of place indicators in three Hudson River Valley, NY, tourism destinations: An application of the limits of acceptable change process

    Science.gov (United States)

    Laura E. Sullivan; Rudy M. Schuster; Diane M. Kuehn; Cheryl S. Doble; Duarte. Morais

    2010-01-01

    This study explores whether measures of residents' sense of place can act as indicators in the Limits of Acceptable Change (LAC) process to facilitate tourism planning and management. Data on community attributes valued by residents and the associated values and meanings were collected through focus groups with 27 residents in three Hudson River Valley, New York,...

  13. 77 FR 40518 - Swim Events in the Captain of the Port New York Zone; Hudson River, East River, Upper New York...

    Science.gov (United States)

    2012-07-10

    ... Upper New York Bay, Hudson River 5.1 Brooklyn Bridge Swim Date: July 15, 2012. Rain Date: NA... Water Swim Clinics, Verrazano Bridge Swim, Rose Pitonof Swim, and Liberty to Freedom Swim. The sponsors... York Bay 2.1 Verrazano Bridge Swim Date: July 21, 2012. Rain Date: July 22, 2012. Enforcement Period...

  14. Computer simulation model for the striped bass young-of-the-year population in the Hudson River. [Effects of entrainment and impingement at power plants on population dynamics

    Energy Technology Data Exchange (ETDEWEB)

    Eraslan, A.H.; Van Winkle, W.; Sharp, R.D.; Christensen, S.W.; Goodyear, C.P.; Rush, R.M.; Fulkerson, W.

    1975-09-01

    This report presents a daily transient (tidal-averaged), longitudinally one-dimensional (cross-section-averaged) computer simulation model for the assessment of the entrainment and impingement impacts of power plant operations on young-of-the-year populations of the striped bass, Morone saxatilis, in the Hudson River.

  15. Deep-water Holothuroidea (Echinodermata collected during the TALUD cruises off the Pacific coast of Mexico, with the description of two new species Holothuroidea (Echinodermata de mar profundo recolectadas durante las campañas TALUD frente a la costa del Pacífico mexicano, con la descripción de dos especies nuevas

    Directory of Open Access Journals (Sweden)

    Claude Massin

    2011-06-01

    éneros Ypsilocucumis Panning, 1949, y Mitsukuriella Heding y Panning, 1954, son nuevas para la ciencia. El material examinado comprende 74 ejemplares. Las localidades previas y nuevas registradas para cada especie recolectada están compiladas para el Pacífico mexicano en mapas de distribución. Se proporciona información acerca de las condiciones de captura de cada especie (temperatura y oxígeno disuelto. Comparativamente con otras áreas del mundo, el número reducido de organismos recolectados durante el estudio podría estar relacionado con la presencia de una zona del mínimo de oxígeno a lo largo del Pacífico mexicano. Se anexa una lista actualizada de las especies de Holothuroidea registradas en profundidades mayores a 350 m frente a la costa del Pacífico mexicano. En total, 31 especies están registradas: 13 en el área de la corriente de California, 20 en el golfo de California y 15 (16 a lo largo de la costa SO de México.

  16. Groundwater quality in the Lower Hudson River Basin, New York, 2008

    Science.gov (United States)

    Nystrom, Elizabeth A.

    2010-01-01

    Water samples were collected from 32 production and domestic wells in the study area from August through November 2008 to characterize the groundwater quality. The study area, which covers 5,607 square miles, encompasses the part of the Lower Hudson River Basin that lies within New York plus the parts of the Housatonic, Hackensack, Bronx, and Saugatuck River Basins that are in New York. The study area is underlain by mainly clastic bedrock, predominantly shale, with carbonate and crystalline rock present locally. The bedrock is generally overlain by till, but surficial deposits of saturated sand and gravel are present in some areas. Of the 32 wells sampled, 16 were finished in sand and gravel deposits and 16 were finished in bedrock. The samples were collected and processed by standard U.S. Geological Survey procedures and were analyzed for 225 physiochemical properties and constituents, including major ions, nutrients, trace elements, radon-222, pesticides, and volatile organic compounds (VOCs); indicator bacteria were collected and analyzed by New York State Department of Health procedures. Water quality in the study area is generally good, but concentrations of some constituents exceeded current or proposed Federal or New York State primary or secondary drinking-water standards; the standards exceeded were color (2 samples), pH (6 samples), sodium (8 samples), fluoride (1 sample), aluminum (3 samples), arsenic (1 sample), iron (7 samples), manganese (14 samples), radon-222 (17 samples), tetrachloroethene (1 sample), and bacteria (7 samples). The pH of all samples was typically neutral or slightly basic (median 7.2); the median water temperature was 11.8 degrees C. The ions with the highest concentrations were bicarbonate [median 167 milligrams per liter (mg/L)] and calcium (median 38.2 mg/L). Groundwater in the study area ranged from very soft to very hard, but more samples were classified as very hard (181 mg/L as CaCO3 or more) than soft (60 mg/L as CaCO3 or

  17. Drought as a Disturbance: Implications for Peatland Carbon Budgets in the Hudson Bay Lowland

    Science.gov (United States)

    Bello, R.; Abnizova, A.; Miller, E.

    2009-05-01

    Carbon feedbacks are of particular importance in high latitudes, both because of large circumpolar peatland carbon pools and because climate warming is occurring more rapidly at these latitudes. Longer-term net ecosystem exchange will be influenced by the capacity of plant communities to respond to changing conditions. The nature of community change and the factors inducing change are examined in this study of a disturbance generated by severe drought in 1994 causing widespread mortality in the dominant moss, Dicranum elongatum, occupying an upland tundra site within the Hudson Bay Lowland near Churchill, Manitoba. One quarter of this moss has recently died and become encrusted with the micro-lichen, Ochrolechia spp. Moss cushions affected in this manner exhibit strong allelopathic inhibition of seedling establishment progressing to complete moss decay. Chamber NEE growing-season flux measurements show an average net release of 642 mg C /m2/d from the dead moss compared to an average net uptake of 164 mg C /m2/d from completely healthy cushions. Between these two extremes, stressed living moss cushions support abundant seedling cover which increases in direct proportion with the fractional mortality. A proxy method for estimating the growth rates of cushions, based on the length of green living shoots, indicates that the moss community is uniform in age and established shortly after the most severe drought of historical record in 1966. Subsequent growth rates of cushions show a strong dependency on proximity to the water table (4.17-1.11 mm/y over 58 cm height interval). A growing-season moss water budget identifies the dominant water flow pathways and indicates capillary uptake (0.08 mm h-1) provides 64% of the storage gains, emphasizing the importance of groundwater for growth and survival. Maximum storage capacities are directly related to cushion biomass, leading to both enhanced moisture stress and increased susceptibility to mortality as cushion size

  18. Air mass distribution and the heterogeneity of the climate change signal in the Hudson Bay/Foxe Basin region, Canada

    Science.gov (United States)

    Leung, Andrew; Gough, William

    2016-08-01

    The linkage between changes in air mass distribution and temperature trends from 1971 to 2010 is explored in the Hudson Bay/Foxe Basin region. Statistically significant temperature increases were found of varying spatial and temporal magnitude. Concurrent statistically significant changes in air mass frequency at the same locations were also detected, particularly in the declining frequency of dry polar (DP) air. These two sets of changes were found to be linked, and we thus conclude that the heterogeneity of the climatic warming signal in the region is at least partially the result of a fundamental shift in the concurrent air mass frequency in addition to global and regional changes in radiative forcing due to increases in long-lived greenhouse gases.

  19. Dreamers in dialogue: evolution, sex and gender in the utopian visions of William Morris and William Henry Hudson

    Directory of Open Access Journals (Sweden)

    Caterina Novák

    2013-12-01

    Full Text Available The aim of this article is to explore the parallels between two late-nineteenth-century utopias,William Henry Hudsons A Crystal Age (1882 and William Morriss News from Nowhere (1891. Itaims to explore how these two works respond to the transition from a kinetic to a static conception ofutopia that under pressure from evolutionary and feminist discourses took place during the period.Particular focus lies on the way in which this is negotiated through the depiction of evolution, sexuality,and gender roles in the respective novels, and how the depiction of these disruptive elements may workas a means of ensuring the readers active engagement in political, intellectual and emotional terms.

  20. Groundwater quality in the Chemung River, Eastern Lake Ontario, and Lower Hudson River Basins, New York, 2013

    Science.gov (United States)

    Scott, Tia-Marie; Nystrom, Elizabeth A.; Reddy, James E.

    2015-11-10

    In a study conducted by the U.S. Geological Survey (USGS) in cooperation with the New York State Department of Environmental Conservation, water samples were collected from 4 production wells and 4 domestic wells in the Chemung River Basin, 8 production wells and 7 domestic wells in the Eastern Lake Ontario Basin, and 12 production wells and 13 domestic wells in the Lower Hudson River Basin (south of the Federal Lock and Dam at Troy) in New York. All samples were collected in June, July, and August 2013 to characterize groundwater quality in these basins. The samples were collected and processed using standard USGS procedures and were analyzed for 148 physiochemical properties and constituents, including dissolved gases, major ions, nutrients, trace elements, pesticides, volatile organic compounds, radionuclides, and indicator bacteria.

  1. Immersion in a Hudson Valley Tidal Marsh and Climate Research Community - Lamont-Doherty's Secondary School Field Research Program

    Science.gov (United States)

    Peteet, D. M.; Newton, R.; Vincent, S.; Sambrotto, R.; Bostick, B. C.; Schlosser, P.; Corbett, J. E.

    2015-12-01

    A primary advantage of place-based research is the multidisciplinary and interdisciplinary research that can be applied to a single locale, with a depth of continued study through time. Through the last decade, Lamont-Doherty's Secondary School Field Research Program (SSFRP) has promoted scientific inquiry, mostly among groups under-represented in STEM fields, in Piermont Marsh, a federally protected marsh in the Hudson estuary. At the same time, Lamont Doherty Earth Observatory (LDEO) scientists have become more involved, through mentoring by researchers, postdocs and graduate students, often paired with high school teachers. The sustained engagement of high school students in a natural environment, experiencing the Hudson River and its tidal cycles, protection of coastline, water quality improvement, native and invasive plant communities, is fundamental to their understanding of the importance of wetlands with their many ecosystem services. In addition, the Program has come to see "place" as inclusive of the Observatory itself. The students' work at Lamont expands their understanding of educational opportunities and career possibilities. Immersing students in a research atmosphere brings a level of serious inquiry and study to their lives and provides them with concrete contributions that they make to team efforts. Students select existing projects ranging from water quality to Phragmites removal, read papers weekly, take field measurements, produce lab results, and present their research at the end of six weeks. Ongoing results build from year to year in studies of fish populations, nutrients, and carbon sequestration, and the students have presented at professional scientific meetings. Through the Program students gain a sense of ownership over both their natural and the academic environments. Challenges include sustained funding of the program; segmenting the research for reproducible, robust results; fitting the projects to PIs' research goals, time

  2. Simulating the Effects of Sea Level Rise on the Resilience and Migration of Tidal Wetlands along the Hudson River.

    Science.gov (United States)

    Tabak, Nava M; Laba, Magdeline; Spector, Sacha

    2016-01-01

    Sea Level Rise (SLR) caused by climate change is impacting coastal wetlands around the globe. Due to their distinctive biophysical characteristics and unique plant communities, freshwater tidal wetlands are expected to exhibit a different response to SLR as compared with the better studied salt marshes. In this study we employed the Sea Level Affecting Marshes Model (SLAMM), which simulates regional- or local-scale changes in tidal wetland habitats in response to SLR, and adapted it for application in a freshwater-dominated tidal river system, the Hudson River Estuary. Using regionally-specific estimated ranges of SLR and accretion rates, we produced simulations for a spectrum of possible future wetland distributions and quantified the projected wetland resilience, migration or loss in the HRE through the end of the 21st century. Projections of total wetland extent and migration were more strongly determined by the rate of SLR than the rate of accretion. Surprisingly, an increase in net tidal wetland area was projected under all scenarios, with newly-formed tidal wetlands expected to comprise at least 33% of the HRE's wetland area by year 2100. Model simulations with high rates of SLR and/or low rates of accretion resulted in broad shifts in wetland composition with widespread conversion of high marsh habitat to low marsh, tidal flat or permanent inundation. Wetland expansion and resilience were not equally distributed through the estuary, with just three of 48 primary wetland areas encompassing >50% of projected new wetland by the year 2100. Our results open an avenue for improving predictive models of the response of freshwater tidal wetlands to sea level rise, and broadly inform the planning of conservation measures of this critical resource in the Hudson River Estuary.

  3. Simulating the Effects of Sea Level Rise on the Resilience and Migration of Tidal Wetlands along the Hudson River.

    Directory of Open Access Journals (Sweden)

    Nava M Tabak

    Full Text Available Sea Level Rise (SLR caused by climate change is impacting coastal wetlands around the globe. Due to their distinctive biophysical characteristics and unique plant communities, freshwater tidal wetlands are expected to exhibit a different response to SLR as compared with the better studied salt marshes. In this study we employed the Sea Level Affecting Marshes Model (SLAMM, which simulates regional- or local-scale changes in tidal wetland habitats in response to SLR, and adapted it for application in a freshwater-dominated tidal river system, the Hudson River Estuary. Using regionally-specific estimated ranges of SLR and accretion rates, we produced simulations for a spectrum of possible future wetland distributions and quantified the projected wetland resilience, migration or loss in the HRE through the end of the 21st century. Projections of total wetland extent and migration were more strongly determined by the rate of SLR than the rate of accretion. Surprisingly, an increase in net tidal wetland area was projected under all scenarios, with newly-formed tidal wetlands expected to comprise at least 33% of the HRE's wetland area by year 2100. Model simulations with high rates of SLR and/or low rates of accretion resulted in broad shifts in wetland composition with widespread conversion of high marsh habitat to low marsh, tidal flat or permanent inundation. Wetland expansion and resilience were not equally distributed through the estuary, with just three of 48 primary wetland areas encompassing >50% of projected new wetland by the year 2100. Our results open an avenue for improving predictive models of the response of freshwater tidal wetlands to sea level rise, and broadly inform the planning of conservation measures of this critical resource in the Hudson River Estuary.

  4. Oceanographic Data from Winter and Spring Circulation and Sediment Transport Studies in the Hudson Shelf Valley collected in December-April (1999/2000) and April-June 2006

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The U.S. Geological Survey (USGS) conducted field experiments to understand the transport of sediments and associated contaminants in the Hudson Shelf Valley,...

  5. Temperature, salinity, and C14 profiles from bottle casts in the North Atlantic, Arctic, and other locations from the HUDSON, YMER (1980), and other platforms from 22 February 1973 to 19 September 1991 (NODC Accession 0000446)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bottle and other data were collected in the the North Atlantic, Arctic, and other locations from the HUDSON, YMER (1980), and other platforms from 22 February 1973...

  6. Microstructure, CTD and ADCP data collected from R/V ONRUST in Hudson River Estuary during 6 short cruises from 1994-05-19 to 2001-05-01 (NCEI Accession 0146260)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Observations of turbulent mixing, stratification and currents in the Hudson River Estuary made in 6 short cruises in 1994/1995 and 2001 were assembled. The lower...

  7. Oceanographic Data from Winter and Spring Circulation and Sediment Transport Studies in the Hudson Shelf Valley collected in December-April (1999/2000) and April-June 2006

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The U.S. Geological Survey (USGS) conducted field experiments to understand the transport of sediments and associated contaminants in the Hudson Shelf Valley,...

  8. Oceanographic profile data collected from sound velocimeter casts aboard NAVIGATION RESPONSE TEAM 5 as part of project S-B916-NRT5-10 in the Hudson River on 2010-11-26 (NCEI Accession 0130785)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NCEI Accession 0130785 includes physical and profile data collected aboard the NAVIGATION RESPONSE TEAM 5 during project S-B916-NRT5-10 in the Hudson River near...

  9. Surface-Wave Tomographic Studies of the Hudson Bay Lithosphere: Implications for Paleoproterozoic Tectonic Processes and the Assembly of the Canadian Shield

    Science.gov (United States)

    Darbyshire, F. A.

    2015-12-01

    Hudson Bay is a shallow intracratonic basin that partially conceals the Trans-Hudson Orogen (THO) in northern Canada. The THO is thought to be a Himalayan-scale Paleoproterozoic orogenic event that was an important component of assembly of the Canadian Shield, marking the collision of the Archean Superior and Western Churchill plates. Until recently, only global and continental-scale seismic tomographic models had imaged the upper-mantle structure of the region, giving a broad but relatively low-resolution picture of the thick lithospheric keel. The Hudson Bay Lithospheric Experiment (HuBLE) investigated the present-day seismic structure beneath Hudson Bay and its surroundings, using a distributed broadband seismograph network installed around the periphery of the Bay and complemented by existing permanent and temporary seismographs further afield. This configuration, though not optimal for body-wave studies which use subvertical arrivals, is well-suited to surface wave tomographic techniques, with many paths crossing the Bay. As there is little seismicity in the region around the Canadian Shield, two-station measurements of teleseismic Rayleigh wave phase velocity formed the principal data set for lithospheric studies. The interstation measurements were combined in a linearized tomographic inversion for maps of phase velocity and azimuthal anisotropy at periods of 20-200 s; these maps were then used to calculate a pseudo-3D anisotropic upper-mantle shear-wavespeed model of the region. The model shows thick (~180-260 km), seismically fast lithosphere across the Hudson Bay region, with a near-vertical 'curtain' of lower wavespeeds trending NE-SW across the Bay, likely associated with more juvenile material trapped between the Archean Superior and Churchill continental cores during the THO. The lithosphere is layered, suggesting a 2-stage formation process. Seismic anisotropy patterns vary with depth; a circular pattern in the uppermost mantle wrapping around the

  10. Selective analysis of power plant operation on the Hudson River with emphasis on the Bowline Point Generating Station. Volume 1. [Effects on striped bass population

    Energy Technology Data Exchange (ETDEWEB)

    Barnthouse, L. W.; Cannon, J. B.; Christensen, S. G.

    1977-07-01

    A comprehensive study of the effects of power plant operation on the Hudson River was conducted. The study included thermal, biological, and air quality effects of existing and planned electrical generating stations. This section on thermal impacts presents a comprehensive mathematical modeling and computer simulation study of the effects of heat rejection from the plants. The overall study consisted of three major parts: near-field analysis; far-field analysis; and zone-matched near-field/far-field analysis. Near-field analyses were completed for Roseton, Danskammer, and Bowline Point Generating Stations, and near-field dilution ratios range from a low of about 2 for Bowline Point and 3 for Roseton to a maximum of 6 for both plants. The far-field analysis included a critical review of existing studies and a parametric review of operating plants. The maximum thermal load case, based on hypothetical 1974 river conditions, gives the daily maximum cross-section-averaged and 2-mile-segment-averaged water temperatures as 83.80/sup 0/F in the vicinity of the Indian Point Station and 83.25/sup 0/F in the vicinity of the Bowline Station. This maximum case will be significantly modified if cooling towers are used at certain units. A full analysis and discussion of these cases is presented. A study of the Hudson River striped bass population is divided into the following eight subsections: distribution of striped bass eggs, larvae, and juveniles in the Hudson River; entrainment mortality factor; intake factor; impingement; effects of discharges; compensation; model estimates of percent reduction; and Hudson River striped bass stock.

  11. Legacy and new halogenated persistent organic pollutants in polar bears from a contamination hotspot in the Arctic, Hudson Bay Canada.

    Science.gov (United States)

    Letcher, R J; Morris, A D; Dyck, M; Sverko, E; Reiner, E J; Blair, D A D; Chu, S G; Shen, L

    2017-08-10

    A large and complex suite of 295 legacy and new halogenated persistent organic pollutants (POPs) were investigated in fat or liver tissue samples of polar bears collected in 2013-2014 from Southern (SHB) and Western (WHB) subpopulations of the Canadian Arctic contaminants hotspot of Hudson Bay. A total of 210 POPs were detected and/or quantifiable with some frequency in all fat or liver samples. POP profile and concentration differences were investigated both within (e.g. age and sex) and between the two subpopulations. Two time-point comparisons were made relative to POPs reported for Hudson Bay polar bears harvested in 2007-2008. ΣPolychlorinated biphenyl (PCB) concentrations at both time points were the most concentrated of the POP groups, and were spatially uniform with no detectable influence of sex or age, as were concentrations of the dominant congener CB153. ΣChlordanes (ΣCHLs, 74-79% oxychlordane) and the Σperfluoroalkyl substances (ΣPFASs, ≈60% perfluorooctane sulfonate (PFOS)) had the second greatest POP group concentrations in SHB and WHB respectively, with ΣPFASs and ΣCHLs being significantly influenced by age and/or sex. ΣCHLs were spatially uniform but ΣPFASs were greater in the SHB bears, as were e.g. some flame retardants, due to e.g. local contamination and/or changes in bear behavior and diet. Endosulfans and hexabromocyclododecane were detectable in samples from 2007-2008 but not from 2013-2014, which is consistent with their global POP regulations. ΣPolychlorinated naphthalenes (ΣPCNs) were consistently detected at relatively high concentrations compared to other arctic wildlife, however these concentrations were low relative to legacy POPs. ΣShort-chain chlorinated paraffins (ΣSCCPs) were major contributors to the overall POPs burden with concentrations comparable to other legacy POPs, though there was no significant difference between or within subpopulations for PCNs or SCCPs. Except for octachlorostyrene, POPs concentrations

  12. Dinoflagellate cyst production in Hudson Bay, the world's largest inland sea, based on monthly sediment trap data

    Science.gov (United States)

    Heikkilä, Maija; Pospelova, Vera; Forest, Alexandre; Stern, Gary

    2014-05-01

    Phytoplankters, microscopic primary producers of oceans are capable of responding rapidly to environmental fluctuations due to their high cell replication rates. Fast phytoplankton growth maybe balanced out by equally fast consumption by herbivorous grazers. In high-latitude marine systems, seasonal fluctuations in plankton biomass are essentially linked to light regime controlled by the waxing and waning sea-ice cover. In addition, nutrient limitation in surface waters, seasonal temperature fluctuations and changes in freshwater inputs may play important roles. In cold-water seas, many planktonic organisms cope with seasonal harshness by the production of benthic dormant stages. Dinoflagellates are a diverse group of single-celled plankton, constituting major marine primary producers, as well as herbivorous grazers of the microbial loop. Many dinoflagellate species produce highly resistant, organic-walled resting cysts that are archived in sediments and have been increasingly used to reconstruct past environmental conditions, e.g., sea-surface temperature and salinity, productivity, sea-ice cover and eutrophication. Marine sediment core sequences are characterized by slow accumulation rates and high mixing rates: the top centimeter of surface sediment from an arctic shelf may correspond to several years or decades of deposition. Consequently, sedimentary archives do not give direct information on long-term changes in seasonal bloom patterns or cues of annually recurring life-cycle events. We used two particle-intercepting sediment traps moored in eastern and western Hudson Bay, respectively, to study monthly fluctuations in dinoflagellate cyst production from October 2005 to September 2006. The traps were deployed close to the seafloor and recovered during the ArcticNet annual expeditions onboard the CCGS Amundsen in 2005 and the CCGS Pierre Radisson in 2006. We document the seasonal succession of dinoflagellate cyst taxa, together with cyst species composition

  13. Effects of recreational flow releases on natural resources of the Indian and Hudson Rivers in the Central Adirondack Mountains, New York, 2004-06

    Science.gov (United States)

    Baldigo, Barry P.; Mulvihill, C.I.; Ernst, A.G.; Boisvert, B.A.

    2011-01-01

    The U.S. Geological Survey (USGS), the New York State Department of Environmental Conservation (NYSDEC), and Cornell University carried out a cooperative 2-year study from the fall of 2004 through the fall of 2006 to characterize the potential effects of recreational-flow releases from Lake Abanakee on natural resources in the Indian and Hudson Rivers. Researchers gathered baseline information on hydrology, temperature, habitat, nearshore wetlands, and macroinvertebrate and fish communities and assessed the behavior and thermoregulation of stocked brown trout in study reaches from both rivers and from a control river. The effects of recreational-flow releases (releases) were assessed by comparing data from affected reaches with data from the same reaches during nonrelease days, control reaches in a nearby run-of-the-river system (the Cedar River), and one reach in the Hudson River upstream from the confluence with the Indian River. A streamgage downstream from Lake Abanakee transmitted data by satellite from November 2004 to November 2006; these data were used as the basis for developing a rating curve that was used to estimate discharges for the study period. River habitat at most study reaches was delineated by using Global Positioning System and ArcMap software on a handheld computer, and wetlands were mapped by ground-based measurements of length, width, and areal density. River temperature in the Indian and Hudson Rivers was monitored continuously at eight sites during June through September of 2005 and 2006; temperature was mapped in 2005 by remote imaging made possible through collaboration with the Rochester Institute of Technology. Fish communities at all study reaches were surveyed and characterized through quantitative, nearshore electrofishing surveys. Macroinvertebrate communities in all study reaches were sampled using the traveling-kick method and characterized using standard indices. Radio telemetry was used to track the movement and persistence of

  14. Short- and long-term monitoring of underwater sound levels in the Hudson River (New York, USA).

    Science.gov (United States)

    Martin, S Bruce; Popper, Arthur N

    2016-04-01

    There is a growing body of research on natural and man-made sounds that create aquatic soundscapes. Less is known about the soundscapes of shallow waters, such as in harbors, rivers, and lakes. Knowledge of soundscapes is needed as a baseline against which to determine the changes in noise levels resulting from human activities. To provide baseline data for the Hudson River at the site of the Tappan Zee Bridge, 12 acoustic data loggers were deployed for a 24-h period at ranges of 0-3000 m from the bridge, and four of the data loggers were re-deployed for three months of continuous recording. Results demonstrate that this region of the river is relatively quiet compared to open ocean conditions and other large river systems. Moreover, the soundscape had temporal and spatial diversity. The temporal patterns of underwater noise from the bridge change with the cadence of human activity. Bridge noise (e.g., road traffic) was only detected within 300 m; farther from the bridge, boating activity increased sound levels during the day, and especially on the weekend. Results also suggest that recording near the river bottom produced lower pseudo-noise levels than previous studies that recorded in the river water column.

  15. The influence of a river plume on the sea-ice meiofauna in south-eastern Hudson Bay

    Science.gov (United States)

    Grainger, E. H.

    1988-08-01

    Outflow from the Great Whale River produces a substantial freshwater layer (plume) beneath the winter ice cover and above water of higher salinity in south-eastern Hudson Bay. In 1983, samples of the lower-ice fauna and of zooplankton beneath the ice, were taken within, below and beyond the offshore reach of the plume. Nematodes accounted for the highest numbers (mean of 1956 1 1in the lower 3 cm of ice), and copepods, mainly Harpacticus and Halectinosoma with fewer Tisbe and Oithona, for the greatest biomass. All ice-inhabiting taxa were also found in the water below the ice, but many zooplankters occurring immediately beneath the ice did not form part of the ice fauna. No major qualitative differences were evident between the ice communities existing above the plume and offshore from it, but quantitative distinctions were readily apparent. Animals were consistently more concentrated (by 2-3 orders of magnitude) in the lower 3 cm of the ice than in the water immediately below, both over the plume and outside it. Except for the dominant rotifers in the plume, the concentration of zooplankton there was only 10% of that found in the surface water outside the plume. The river plume exerts a strong influence over the quantity of the fauna in the sea ice immediately above it. Changes in location and extent of the plume therefore may have an important effect on the food chain based in the sea ice.

  16. Mixing and photoreactivity of dissolved organic matter in the Nelson/Hayes estuarine system (Hudson Bay, Canada)

    Science.gov (United States)

    Guéguen, C.; Mokhtar, M.; Perroud, A.; McCullough, G.; Papakyriakou, T.

    2016-09-01

    This work presents the results of a 4-year study (2009-2012) investigating the mixing and photoreactivity of dissolved organic matter (DOM) in the Nelson/Hayes estuary (Hudson Bay). Dissolved organic carbon (DOC), colored DOM, and humic-like DOM decreased with increasing salinity (r2 = 0.70-0.84). Removal of DOM was noticeable at low to mid salinity range, likely due to degradation and/or adsorption to particles. DOM photobleaching rates (i.e., decrease in DOM signal resulting from exposure to solar radiation) ranged from 0.005 to 0.030 h- 1, corresponding to half-lives of 4.9-9.9 days. Dissolved organic matter from the Nelson and Hayes Rivers was more photoreactive than from the estuary where the photodegradation of terrestrial DOM decreased with increasing salinity. Coincident with the loss of CDOM absorption was an increase in spectral slope S, suggesting a decrease in DOM molecular weight. Marked differences in photoreactivity of protein- and humic-like DOM were observed with highly humidified material being the most photosensitive. Information generated by our study will provide a valuable data set for better understanding the impacts of future hydroelectric development and climate change on DOM biogeochemical dynamics in the Nelson/Hayes estuary and coastal domain. This study will constitute a reference on terrestrial DOM fate prior to building additional generating capacity on the Nelson River.

  17. Divergent hydrological responses to 20th century climate change in shallow tundra ponds, western Hudson Bay Lowlands

    Science.gov (United States)

    Wolfe, Brent B.; Light, Erin M.; Macrae, Merrin L.; Hall, Roland I.; Eichel, Kaleigh; Jasechko, Scott; White, Jerry; Fishback, LeeAnn; Edwards, Thomas W. D.

    2011-12-01

    The hydrological fate of shallow tundra lakes and ponds under conditions of continued warming remains uncertain, but has important implications for wildlife habitat and biogeochemical cycling. Observations of unprecedented pond desiccation, in particular, signify catastrophic loss of aquatic habitat in some Arctic locations. Shallow tundra ponds are a ubiquitous feature in the western Hudson Bay Lowlands (HBL), a region that has undergone intense warming over the past ˜50 years. But it remains unknown how hydrological processes in these ponds have responded. Here, we use cellulose-inferred pond water oxygen isotope records from sediment cores, informed by monitoring of modern pond water isotope compositions during the 2009 and 2010 ice-free seasons, to reconstruct hydrological conditions of four shallow tundra ponds in the western HBL over the past three centuries. Following an interval of relative hydrological stability during the early part of the records, results reveal widely differing hydrological responses to 20th century climate change among the study sites, which is largely dependent on hydrological connectivity of the basins within their respective surrounding peatlands. These findings suggest the 20th century has been characterized by an increasingly dynamic landscape that has variably influenced surface water balance - a factor that is likely to play a key role in determining the future water balance of ponds in this region.

  18. Antimicrobial and Antioxidant Activity of the Essential Oils Obtained from Mentha longifolia L. Hudson, Dryed by Three Different Techniques

    Directory of Open Access Journals (Sweden)

    Dragana Stanisavljević

    2014-01-01

    Full Text Available The way of drying the fresh herbal material influences the chemical content and the biological activities of their essential oils. The influence of the different drying methods of the herb Mentha longifolia (L. Hudson on the antioxidant and antimicrobial activity of the extracted essential oils has been analyzed in this study. Drying has been carried out in three ways: in the natural way, in the laboratory oven (45°C and in the absorptional low-temperature condensational drier (35°C. The antioxidant activity of the essential oil has been estimated by FRAP and DPPH assays, while the antimicrobial activity has been estimated by the diffusible and micro-delusional method, testing on the nine types of bacteria and two types of fungi. The essential oil obtained from the herb dried in the natural way has shown the highest antioxidant activity and the lowest from the herb dried in the laboratory oven. Bacillus subtilis , Micrococcus luteus and Enterococcus faecalis have shown the highest sensitivity on the three samples. The oil obtained from the herb dried in the absorptional low-temperature drier has shown the strongest antimicrobial effect.

  19. Isolation of a flavonoid, apigenin 7-O-glucoside, from Mentha longifolia (L.) Hudson subspecies longifolia and its genotoxic potency.

    Science.gov (United States)

    Gulluce, Medine; Orhan, Furkan; Yanmis, Derya; Arasoglu, Tulin; Guvenalp, Zuhal; Demirezer, Lutfiye Omur

    2015-09-01

    Mentha is a medicinal and aromatic plant belonging to the Lamiaceae family, which is widely used in food, flavor, cosmetic and pharmaceutical industries. Recently, it has been found that the use of Mentha as a pharmaceutical source is based on its phytochemical constituents that have far been identified as tannins, saponins, phenolic acids and flavonoids. This study was designed to evaluate the mutagenic and antimutagenic activities of apigenin 7-O-glucoside (A7G), a flavonoid isolated from Mentha longifolia (L.) Hudson subspecies longifolia (ML). The possible antimutagenic potential of A7G was examined against mutagens ethyl methanesulfonate and acridine in an eukaryotic cell system Saccharomyces cerevisiae and sodium azide in Salmonella typhimurium TA1535 and 9-aminoacridine in S. typhimurium TA1537. According to our findings, any concentrations of the A7G used did not show mutagenic activity but exerted strong antimutagenic activities at tested concentrations. The inhibition rates for the Ames test ranged from 27.2% (S. typhimurium TA1535: 0.4 μM/plate) to 91.1% (S. typhimurium TA1537: 0.2 μM/plate) and for the yeast deletion assay from 4% to 57.7%. This genotoxicological study suggests that a flavonoid from ML owing to antimutagenic properties is of great pharmacological importance and might be beneficial to industries producing food additives, cosmetics and pharmaceuticals products.

  20. Impact of the Clean Water Act on the levels of toxic metals in urban estuaries: The Hudson River estuary revisited

    Energy Technology Data Exchange (ETDEWEB)

    Sanudo-Wilhelmy, S.A.; Gill, G.A.

    1999-10-15

    To establish the impact of the Clean Water Act on the water quality of urban estuaries, dissolved trace metals and phosphate concentrations were determined in surface waters collected along the Hudson River estuary between 1995 and 1997 and compared with samples collected in the mid-1970s by Klinkhammer and Bender. The median concentrations along the estuary have apparently declined 36--56% for Cu, 55--89% for Cd, 53--85% for Ni, and 53--90% for Zn over a period of 23 years. These reductions appear to reflect improvements in controlling discharges from municipal and industrial wastewater treatment plants since the Clean Water Act was enacted in 1972. In contrast, levels of dissolved nutrients (PO{sub 4}) have remained relatively constant during the same period of time, suggesting that wastewater treatment plant improvements in the New York/New Jersey Metropolitan area have not been as effective at reducing nutrient levels within the estuary. While more advanced wastewater treatment could potentially reduce the levels of Ag and PO{sub 4} along the estuary, these improvements would have a more limited effect on the levels of other trace metals.

  1. Impact of freshwater on a subarctic coastal ecosystem under seasonal sea ice (southeastern Hudson Bay, Canada). I. Interannual variability and predicted global warming influence on river plume dynamics and sea ice

    Science.gov (United States)

    Ingram, R. G.; Wang, J.; Lin, C.; Legendre, L.; Fortier, L.

    1996-02-01

    Analysis of sea ice cover, runoff and air temperature observations in Hudson Bay shows marked interannual variability. This variability is thought to play a major role in determining overall productivity of the coastal ecosystem by changes to river plume extent, under-ice light conditions and nutrient levels during spring. Extensive field work off the Great Whale River in southeastern Hudson Bay has shown the importance of freshwater discharge, sea ice cover and meteorological forcing on the production of under-ice microalgae and the success of first feeding in fish larvae. Recent global climate model (GCM) results for a doubling of present atmospheric carbon dioxide indicate increases of both air temperature and precipitation in the Hudson Bay area. Predictions based on GCM results are used to estimate future changes to the sea ice and runoff regime. Sea ice breakup in the offshore is predicted to occur about one month earlier than presently. Estimates of the spring freshet in the Great Whale River indicate it will also advance by approximately one month. Onset of the spring freshet will occur about one month before Hudson Bay ice breakup, similar to present. A predicted reduction of about 35% in maximum sea ice thickness will lead to an increase in the ice-ocean interface irradiance and a decrease in melt water input to the Hudson Bay surface waters. These results are used in a discussion of potential effects of global climate change on northern coastal marine environments.

  2. Preliminary study of the antimicrobial activity of Mentha x villosa Hudson essential oil, rotundifolone and its analogues Estudo preliminar da atividade antimicrobiana do óleo essencial de Mentha x villosa Hudson, rotundifolona e seus análogos

    Directory of Open Access Journals (Sweden)

    Thúlio. A. Arruda

    2006-09-01

    Full Text Available Essential oils present antimicrobial activity against a variety of bacteria and yeasts, including species resistant to antibiotics and antifungicals. In this context, this work aims at the evaluation of the antimicrobial activity of the essential oil of Mentha x villosa Hudson ("hortelã da folha miúda", its major component (rotundifolone and four similar analogues of rotundifolone (limonene oxide, pulegone oxide, carvone epoxide and (+-pulegone against strain standards of Staphylococcus aureus ATCC 25923, E. coli ATCC 25922, Pseudomona aeruginosa ATCC 27853, Candida albicans ATCC 76645 and one strain of meticilin - resistant Staphylococcus aureus - MRSA (171c from human clinic. The method of the diffusion in plates with solid medium was used. The results showed that the oil of Mentha x villosa, rotundifolone, limonene oxide and (+-pulegone, are similar regarding the antimicrobial activity against the tested strains of S. aureus and C. albicans. All of the products present antimocrobial potential with antibacterial activity for S. aureus ATCC 25923 and antifungal activity for C. albicans ATCC 76645. None of the products presented antimicrobial activity for the strains of E. coli ATCC 25922 and P. aeruginosa ATCC 27853, representatives of the Gram negative bacteria.Os óleos essenciais apresentam atividade antimicrobiana contra uma variedade de bactérias e fungos, incluindo espécies resistentes a antibióticos e antimicóticos. Neste contexto, este trabalho objetiva a avaliação da atividade de antimicrobiana do óleo essencial de Mentha x villosa Hudson (hortelã-da-folha-miúda - seu componente majoritário (rotundifolona e quatro análogos sintéticos da rotundifolona (epóxi-limoneno epóxi-pulegona, epóxi-carvona e (+-pulegona frente a cepas padrão de Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922 Pseudomonas aeruginosa ATCC 27853, Candida albicans ATCC 76645 e uma cepa de Staphylococcus aureus meticilina - resistente

  3. Upscaling reflectance information of lichens and mosses using a singularity index: a case study of the Hudson Bay Lowlands, Canada

    Directory of Open Access Journals (Sweden)

    T. Neta

    2010-08-01

    Full Text Available Assessing moisture contents of lichens and mosses using ground-based high spectral resolution spectrometers (400–2500 nm offers immense opportunities for a comprehensive monitoring of peatland moisture status by satellite/airborne imagery. This information may be valuable for present and future carbon balance modeling. Previous studies are based upon point measurements of vegetation moisture content and water table position, and therefore a detailed moisture status of entire northern peatlands is not available. Consequently, upscaling ground and remotely sensed data to the desired spatial resolutions is inevitable. This study continues our previous investigation of the impact of various moisture conditions of common sub-Arctic lichen and moss species (i.e., Cladina stellaris, Cladina rangiferina, Dicranum elongatum, and Tomenthypnum nitens upon the spectral signatures obtained in the Hudson Bay Lowlands, Canada. Upscaling reflectance measurements of the above species were conducted in the field, and reflectance analysis using a singularity index was made, since this study serves as a basis for future aircraft/satellite research. An attempt to upscale current and new spectral reflectance indices developed in our previous studies was made as well. Our findings indicate that the spectral index C. rangiferina is to a lesser amount influenced by scale since it has a small R2 values between the log of the index and the log of the resolution, reduced slopes between the log of the index and the log of the resolution, and similar slopes between log reflectance and log resolution (α of two wavelengths employed by the index. Future study should focus on concurrent monitoring of moisture variations in lichens and mosses both in situ and from satellite and airborne images, as well as analysis of fractal models in relations to the upscaling experiments.

  4. Seismological Structure of the 1.8Ga Trans-Hudson Orogen of North America and its affinity to present-day Tibet

    Science.gov (United States)

    Gilligan, A.; Bastow, I. D.; Darbyshire, F. A.

    2015-12-01

    How tectonic processes operated and changed through the Precambrian is debated: what was the nature and scale of orogenic events and were they different on the younger, hotter, more ductile Earth? The geology of northern Hudson Bay records the Paleoproterozoic collision between the Western Churchill and Superior plates: the 1.8Ga Trans-Hudson Orogeny (THO) and is thus an ideal study locale to address this issue. It has been suggested, primarily on the strength of traditional field geology, that the THO was comparable in scale and style to the present-day Himalayan-Karakoram-Tibet Orogen (HKTO). However, understanding of the deep crustal architecture of the THO, and how it compares to the evolving HKTO is presently lacking. Through joint inversion of teleseismic receiver functions and surface wave data, we obtain new Moho depth estimates and shear velocity models for the crust and upper mantle. Archean crust in the Rae, Hearne and Churchill domains is thin and structurally simple, with a sharp Moho; upper crustal wavespeed variations are readily attributed to post-formation events. However, the Paleoproterozoic Quebec-Baffin segment of the THO has a deeper Moho and more complex crustal structure. Our observations are strikingly similar to recent models, computed using the same methods, of the HKTO lithosphere, where deformation also extends >400km beyond the collision front. On the strength of Moho character, present-day crustal thickness, and metamorphic grade, we thus propose that southern Baffin experienced uplift of a similar magnitude and spatial extent to the Himalayas during the Paleoproterozoic Trans-Hudson Orogeny.

  5. Dietary exposure of mink (Mustela vison) to fish from the upper Hudson River, New York, USA: effects on reproduction and offspring growth and mortality.

    Science.gov (United States)

    Bursian, Steven J; Kern, John; Remington, Richard E; Link, Jane E; Fitzgerald, Scott D

    2013-04-01

    The effects of feeding farm-raised mink (Mustela vison) diets containing polychlorinated biphenyl (PCB)-contaminated fish from the upper Hudson River (New York, USA) on adult reproductive performance and kit growth and mortality were evaluated. Diets contained 2.5 to 20% Hudson River fish, providing 0.72 to 6.1 µg ∑PCBs/g feed (4.8-38 pg toxic equivalents [TEQWHO 2005 ]/g feed). The percentage of stillborn kits per litter was significantly increased by dietary concentrations of 4.5 µg ∑PCBs/g feed (28 pg TEQWHO 2005 /g feed) and greater. All offspring exposed to dietary concentrations of 4.5 and 6.1 µg ∑PCBs/g feed (28 and 38 pg TEQWHO 2005 /g feed) died by 10 weeks of age, and all offspring exposed to 1.5 and 2.8 µg ∑PCBs/g feed (10 and 18 pg TEQWHO 2005 /g feed) died by 31 weeks of age, leaving juveniles in the control and 0.72 µg ∑PCBs/g feed (0.41- and 4.8 pg TEQWHO 2005 /g feed) groups only. The dietary concentration predicted to result in 20% kit mortality (LC20) at six weeks of age was 0.34 µg ∑PCBs/g feed (2.6 pg TEQWHO 2005 /g feed). The corresponding maternal hepatic concentration was 0.80 µg ∑PCBs/g liver, wet weight (13 pg TEQWHO 2005 /g liver, wet wt). Mink residing in the upper Hudson River would be expected to consume species of fish that contain an average of 4.0 µg ∑PCBs/g tissue. Thus, a daily diet composed of less than 10% Hudson River fish could provide a dietary concentration of ∑PCBs that resulted in 20% kit mortality in the present study.

  6. Field testing of behavioral barriers for fish exclusion at cooling-water intake systems, Central Hudson Gas and Electric Company Roseton Generating Station: Final report

    Energy Technology Data Exchange (ETDEWEB)

    Matousek, J.A.; Wells, A.W.; McGroddy, P.M.

    1988-09-01

    A seasonal field testing program was conducted during 1986 and 1987 to evaluate the effectiveness of behavioral barriers at Central Hudson Gas and Electric Corporations's Roseton Generating Station located in the euryhaline section of the Hudson River. This station was selected as representative of power plants with shoreline riverine/estuarine intake systems. Three commercially available devices (air bubble curtain, pneumatic gun, and underwater strobe light) were tested alone and in combination to determine their effectiveness in reducing impingement. The primary testing method incorporated three or four 6-h impingement collections during each test date, each consisting of two randomly assigned 3-h samples: one was an experimental test with a behavioral device in operation, the other a control test with no device operating. The effectiveness of the devices at excluding fish was determined by comparing impingement data from experimental and control periods. Results of the program do not establish that the deployment of underwater strobe lights, pneumatic guns, an air bubble curtain, or various combinations of the three devices will effectively lower fish impingement at power plants similar in design and location to the Roseton plant. Deterrent effectiveness was found to be species-specific and related to time of day. 51 refs., 67 figs., 72 tabs.

  7. Organochlorine residues in harp seals, Phoca groenlandica, from the Gulf of St. Lawrence and Hudson Strait: An evaluation of contaminant concentrations and burdens

    Energy Technology Data Exchange (ETDEWEB)

    Beck, G.G.; Smith, T.G. (Dept. of Fisheries and Oceans, Nanaimo, BC (Canada)); Addison, R.F. (Dept. of Fisheries and Oceans, Sidney, BC (Canada))

    1994-01-01

    Organochlorine contaminant concentrations and burdens were evaluated in blubber samples from 50 harp seals (Phoca groenlandica) obtained from the estuary and northern Gulf of St. Lawrence and Hudson Strait, Canada between December 1988 and December 1989. The concentration and burden of polychlorinated biphenyls (PCBs) increased significantly during the winter months for males occupying the St. Lawrence estuary. The potential for rapid accumulation of contaminants in the estuary was also observed among females: nine postpartum females (1 month after weaning) had higher organochlorine levels than prepartum females from the same location. The lowest observed contaminant concentrations and burdens were in seals from Hudson Strait in autumn. In winter specimens, males had DDT and PCB concentrations about 4 and 2 times as great, respectively, as females of similar age distribution and collection date. Congeners with IUPAC Nos. 138 and 153 accounted for more than 50% of total identifiable PCBs, which is consistent with their prevalence in other marine biota. The concentration of PCBs has declined and the percent p,p'-DDE of total DDT has increased between 1982 and the present study. Unlike the beluga whale (Delphinapterus leucas), harp seals occupy the more polluted waters of the estuary only seasonally, and this may account for their lower residue concentrations. 59 refs., 1 fig., 5 tabs.

  8. Organic matter compositions of rivers draining into Hudson Bay: Present-day trends and potential as recorders of future climate change

    Science.gov (United States)

    Godin, Pamela; Macdonald, Robie W.; Kuzyk, Zou Zou A.; Goñi, Miguel A.; Stern, Gary A.

    2017-07-01

    Concentrations and compositions of particulate and dissolved organic carbon (POC and DOC, respectively) and aromatic compounds including lignin were analyzed in water samples from 17 rivers flowing into Hudson Bay, northern Canada. These rivers incorporate basins to the south with no permafrost to basins in the north with continuous permafrost, and dominant vegetation systems that include Boreal Forest, the Hudson Plains, Taiga Shield, and Tundra. Major latitudinal trends in organic carbon and lignin concentrations and compositions were evident, with both DOC and dissolved lignin concentrations dominating over their particulate counterparts and exhibiting significant correlations with total dissolved and suspended solids, respectively. The composition of lignin reaction products in terms of the syringyl, cinnamyl, and vanillyl compositions indicate mixed sources of vascular land plant-derived organic carbon, with woody gymnosperms contributions dominating in the southern river basins whereas nonwoody angiosperm sources were more important in the most northerly rivers. The composition of nonlignin aromatic compounds, which provides a tracer for nonvascular plant contributions, suggests stronger contributions from Sphagnum mosses to dissolved organic matter in rivers below the tree line, including those with large peat bogs in their basins. Acid/aldehyde ratios of the lignin products together with Δ14C data for DOC in selected rivers indicate that DOC has generally undergone greater alteration than POC. Interestingly, several northern rivers exhibited relatively old DOC according to the Δ14C data suggesting that either old DOC is being released from permafrost or old DOC survives river transport in these rivers.

  9. Distribution and diversity of diatom assemblages in surficial sediments of shallow lakes in Wapusk National Park (Manitoba, Canada) region of the Hudson Bay Lowlands.

    Science.gov (United States)

    Jacques, Olivier; Bouchard, Frédéric; MacDonald, Lauren A; Hall, Roland I; Wolfe, Brent B; Pienitz, Reinhard

    2016-07-01

    The hydrology of shallow lakes (and ponds) located in the western Hudson Bay Lowlands (HBL) is sensitive to climate warming and associated permafrost thaw. However, their biological characteristics are poorly known, which hampers effective aquatic ecosystem monitoring. Located in northern Manitoba along the southwestern coast of Hudson Bay, Wapusk National Park (WNP) encompasses numerous shallow lakes representative of the subarctic zone. We analyzed the distribution and diversity of diatom (microscopic algae; class Bacillariophyceae) assemblages in surficial sediments of 33 lakes located in three different ecozones spanning a vegetation gradient, from NE to SW: the Coastal Fen (CF), the Interior Peat Plateau (IPP), and the Boreal Spruce Forest (BSF). We found significant differences (P lakes, and CF and BSF lakes, but not between IPP and BSF lakes. These results are consistent with water chemistry measurements, which indicated distinct limnological conditions for CF lakes. Diatom communities in CF lakes were generally dominated by alkaliphilous taxa typical of waters with medium to high conductivity, such as Nitzschia denticula. In contrast, several IPP and BSF lakes were dominated by acidophilous and circumneutral diatom taxa with preference for low conductivity (e.g., Tabellaria flocculosa, Eunotia mucophila, E. necompacta var. vixcompacta). This exploratory survey provides a first detailed inventory of the diatom assemblages in the WNP region needed for monitoring programs to detect changes in shallow lake ecosystems and ecozonal shifts in response to climate variations.

  10. Constraining the Late Pleistocene history of the Laurentide Ice Sheet by dating the Missinaibi Formation, Hudson Bay Lowlands, Canada

    Science.gov (United States)

    Dalton, April S.; Finkelstein, Sarah A.; Barnett, Peter J.; Forman, Steven L.

    2016-08-01

    Well-dated paleorecords from periods prior to the Last Glacial Maximum (LGM) are important for validating models of ice sheet build-up and growth. However, owing to glacial erosion, most Late Pleistocene records lie outside of the previously glaciated region, which limits their ability to inform about the dynamics of paleo-ice sheets. Here, we evaluate new and previously published chronology data from the Missinaibi Formation, a Pleistocene-aged deposit in the Hudson Bay Lowlands (HBL), Canada, located near the geographic center of the Laurentide Ice Sheet (LIS). Available radiocarbon (AMS = 44, conventional = 36), amino acid (n = 13), uranium-thorium (U-Th, n = 14), thermoluminescence (TL, n = 15) and optically stimulated luminescence (OSL, n = 5) data suggest that an ice-free HBL may have been possible during parts of Marine Isotope Stage 7 (MIS 7; ca. 243,000 to ca. 190,000 yr BP), MIS 5 (ca. 130,000 to ca. 71,000 yr BP) and MIS 3 (ca. 29,000 to ca. 57,000). While MIS 7 and MIS 5 are well-documented interglacial periods, the development of peat, forest bed and fluvial deposits dating to MIS 3 (n = 20 radiocarbon dates; 4 TL dates, 3 OSL dates), suggests that the LIS retreated and remained beyond, or somewhere within, the boundaries of the HBL during this interstadial. Ice sheet models approximate the margin of the LIS to Southern Ontario during this time, which is 700 km south of the HBL. Therefore, if correct, our data help constrain a significantly different configuration and dynamicity for the LIS than previously modelled. We can find no chronological basis to discount the MIS 3 age assignments. However, since most data originate from radiocarbon dates lying close to the reliable limit of this geochronometer, future work on dating the Missinaibi Formation using other geochronological methods (e.g. U-Th, OSL) is necessary in order to confirm the age estimates and strengthen the boundaries of the LIS during this period.

  11. Landscape controls on total and methyl mercury in the upper Hudson River basin of New York State

    Science.gov (United States)

    Burns, D. A.; Murray, K. R.; Bradley, P. M.; Brigham, M. E.; Aiken, G.; Smith, M.

    2010-12-01

    High levels of mercury (Hg) in aquatic biota have been identified in surface waters of the Adirondack region of New York, and factors such as the prevalence of wetlands, extensive forest cover, and oligotrophic waters promote Hg bioaccumulation in this region. Past research in this region has focused on improved understanding of the Hg cycle in lake ecosystems. In the study described herein, the landscape controls on total Hg and methylmercury (MeHg) concentrations in riverine ecosystems were explored through synoptic surveys of 27 sites in the upper Hudson River basin of the Adirondack region. Stream samples were collected and analyzed for total Hg, MeHg, dissolved organic carbon (DOC), and ultraviolet absorbance at 254 nm (UV254) during spring and summer of 2006-08. Landscape indices including many common land cover, hydrographic, and topographic-based measures were explored as predictors of Hg through multivariate linear regression. Multivariate models that included a wetland or riparian area-based metric, an index for open water area, and in some cases a topographic metric such as the wetness index explained 55 to 65 percent of the variation in MeHg concentrations, and 55 to 80 percent of the variation in total Hg concentrations. An open water index (OWI) was developed that incorporated both the basin area drained by ponded water and the surface area of these ponds. This index was inversely related to concentrations of total Hg and MeHg. This OWI was also inversely related to specific ultra-violet absorbance, consistent with previous studies showing that open water increases the influence of algal-derived carbon on DOC, decreasing aromaticity, which should decrease the ability of the dissolved carbon pool to bind Hg. The OWI was not significant in models for total Hg that also included UV254 as a predictive variable, but the index did remain significant in similar models for MeHg suggesting that biogeochemical factors in addition to decreasing carbon

  12. Detrital carbonate peaks on the Labrador shelf, a 13-7 ka template for freshwater forcing from the Hudson Strait outlet of the Laurentide Ice Sheet into the subpolar gyre

    Science.gov (United States)

    Jennings, Anne; Andrews, John; Pearce, Christof; Wilson, Lindsay; Ólfasdótttir, Sædís

    2015-01-01

    The Laurentide Ice Sheet (LIS) was a large, dynamic ice sheet in the early Holocene. The glacial events through Hudson Strait leading to its eventual demise are recorded in the well-dated Labrador shelf core, MD99-2236 from the Cartwright Saddle. We develop a detailed history of the timing of ice-sheet discharge events from the Hudson Strait outlet of the LIS during the Holocene using high-resolution detrital carbonate, ice rafted detritus (IRD), δ18O, and sediment color data. Eight detrital carbonate peaks (DCPs) associated with IRD peaks and light oxygen isotope events punctuate the MD99-2236 record between 11.5 and 8.0 ka. We use the stratigraphy of the DCPs developed from MD99-2236 to select the appropriate ΔR to calibrate the ages of recorded glacial events in Hudson Bay and Hudson Strait such that they match the DCPs in MD99-2236. We associate the eight DCPs with H0, Gold Cove advance, Noble Inlet advance, initial retreat of the Hudson Strait ice stream (HSIS) from Hudson Strait, opening of the Tyrrell Sea, and drainage of glacial lakes Agassiz and Ojibway. The opening of Foxe Channel and retreat of glacial ice from Foxe Basin are represented by a shoulder in the carbonate data. ΔR of 350 years applied to the radiocarbon ages constraining glacial events H0 through the opening of the Tyrell Sea provided the best match with the MD99-2236 DCPs; ΔR values and ages from the literature are used for the younger events. A very close age match was achieved between the 8.2 ka cold event in the Greenland ice cores, DCP7 (8.15 ka BP), and the drainage of glacial lakes Agassiz and Ojibway. Our stratigraphic comparison between the DCPs in MD99-2236 and the calibrated ages of Hudson Strait/Bay deglacial events shows that the retreat of the HSIS, the opening of the Tyrell Sea, and the catastrophic drainage of glacial lakes Agassiz and Ojibway at 8.2 ka are separate events that have been combined in previous estimates of the timing of the 8.2 ka event from marine records

  13. Chemical contamination assessment of the Hudson-Raritan Estuary as a result of the attacks on the World Trade Center: analysis of trace elements.

    Science.gov (United States)

    Kimbrough, K L; Commey, S; Apeti, D A; Lauenstein, G G

    2010-12-01

    The attack on the World Trade Center (WTC) resulted in the destruction of buildings, and the release of tons of dust and debris into the environment. As part of the effort to characterize the environmental impact of the WTC collapse, Mussel Watch Program trace element measurements from the Hudson-Raritan Estuary (HRE) were assessed for the years before (1986-2001) and after (2001-2005) the attack. Trace element measurements in the HRE were significantly higher than Mussel Watch measurements taken elsewhere in the Nation. Post-attack trace element measurements were not significantly different from pre-attack measurements. The impacts of WTC collapse may have been obscured by high ambient levels of trace elements in the HRE. Copyright © 2010 Elsevier Ltd. All rights reserved.

  14. The Energetic Value of Land-Based Foods in Western Hudson Bay and Their Potential to Alleviate Energy Deficits of Starving Adult Male Polar Bears.

    Directory of Open Access Journals (Sweden)

    Linda J Gormezano

    Full Text Available Climate change is predicted to expand the ice-free season in western Hudson Bay and when it grows to 180 days, 28-48% of adult male polar bears are projected to starve unless nutritional deficits can be offset by foods consumed on land. We updated a dynamic energy budget model developed by Molnar et al. to allow influx of additional energy from novel terrestrial foods (lesser snow geese, eggs, caribou that polar bears currently consume as part of a mixed diet while on land. We calculated the units of each prey, alone and in combination, needed to alleviate these lethal energy deficits under conditions of resting or limited movement (2 km d-1 prior to starvation. We further considered the total energy available from each sex and age class of each animal prey over the period they would overlap land-bound polar bears and calculated the maximum number of starving adult males that could be sustained on each food during the ice-free season. Our results suggest that the net energy from land-based food, after subtracting costs of limited movement to obtain it, could eliminate all projected nutritional deficits of starving adult male polar bears and likely other demographic groups as well. The hunting tactics employed, success rates as well as behavior and abundance of each prey will determine the realized energetic values for individual polar bears. Although climate change may cause a phenological mismatch between polar bears and their historical ice-based prey, it may simultaneously yield a new match with certain land-based foods. If polar bears can transition their foraging behavior to effectively exploit these resources, predictions for starvation-related mortality may be overestimated for western Hudson Bay. We also discuss potential complications with stable-carbon isotope studies to evaluate utilization of land-based foods by polar bears including metabolic effects of capture-related stress and consuming a mixed diet.

  15. A retrospective streamflow ensemble forecast for an extreme hydrologic event: a case study of Hurricane Irene and on the Hudson River basin

    Science.gov (United States)

    Saleh, Firas; Ramaswamy, Venkatsundar; Georgas, Nickitas; Blumberg, Alan F.; Pullen, Julie

    2016-07-01

    This paper investigates the uncertainties in hourly streamflow ensemble forecasts for an extreme hydrological event using a hydrological model forced with short-range ensemble weather prediction models. A state-of-the art, automated, short-term hydrologic prediction framework was implemented using GIS and a regional scale hydrological model (HEC-HMS). The hydrologic framework was applied to the Hudson River basin ( ˜ 36 000 km2) in the United States using gridded precipitation data from the National Centers for Environmental Prediction (NCEP) North American Regional Reanalysis (NARR) and was validated against streamflow observations from the United States Geologic Survey (USGS). Finally, 21 precipitation ensemble members of the latest Global Ensemble Forecast System (GEFS/R) were forced into HEC-HMS to generate a retrospective streamflow ensemble forecast for an extreme hydrological event, Hurricane Irene. The work shows that ensemble stream discharge forecasts provide improved predictions and useful information about associated uncertainties, thus improving the assessment of risks when compared with deterministic forecasts. The uncertainties in weather inputs may result in false warnings and missed river flooding events, reducing the potential to effectively mitigate flood damage. The findings demonstrate how errors in the ensemble median streamflow forecast and time of peak, as well as the ensemble spread (uncertainty) are reduced 48 h pre-event by utilizing the ensemble framework. The methodology and implications of this work benefit efforts of short-term streamflow forecasts at regional scales, notably regarding the peak timing of an extreme hydrologic event when combined with a flood threshold exceedance diagram. Although the modeling framework was implemented on the Hudson River basin, it is flexible and applicable in other parts of the world where atmospheric reanalysis products and streamflow data are available.

  16. Currents, backscatter, attenuation, conductivity, temperature, sigma-theta, and pressure data from moorings deployed from the SAMANTHA MILLER and the RV CONNECTICUT on the Hudson Shelf Valley, North Atlantic Ocean from the from April 5, 2006 to June 21, 2006 (NODC Accession 0066107)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Field experiments have been carried out to understand the transport of sediments and associated contaminants in the Hudson Shelf Valley, offshore of New York. The...

  17. Currents, backscatter, attenuation, conductivity, temperature, sigma theta, and pressure data collected in the Hudson Shelf Valley, North Atlantic Ocean from instruments deployed from the RV OCEANUS and RV CONNECTICUT on MOORINGS from December 4, 1999 to May 14, 2000 (NODC Accession 0066009)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Field experiments have been carried out to understand the transport of sediments and associated contaminants in the Hudson Shelf Valley, offshore of New York. The...

  18. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2007-05-10 to 2007-05-27 (NODC Accession 0108223)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108223 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean...

  19. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2005-05-26 to 2005-06-17 (NODC Accession 0108221)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108221 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean...

  20. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the HUDSON in the Davis Strait, Gulf of St. Lawrence and others from 1995-06-07 to 1995-07-05 (NODC Accession 0115006)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0115006 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Gulf of St. Lawrence, Labrador Sea...

  1. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 1997-05-09 to 1997-06-11 (NODC Accession 0113557)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113557 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean...

  2. Dissolved inorganic carbon, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 1994-05-24 to 1994-06-12 (NODC Accession 0113554)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113554 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean...

  3. Dissolved inorganic carbon, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the HUDSON in the North Atlantic Ocean from 1993-04-05 to 1993-05-14 (NODC Accession 0113551)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113551 includes chemical, discrete sample, physical and profile data collected from HUDSON in the North Atlantic Ocean from 1993-04-05 to 1993-05-14...

  4. Dissolved inorganic carbon, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the HUDSON in the Davis Strait and Labrador Sea from 1993-06-17 to 1993-06-29 (NODC Accession 0113552)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113552 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait and Labrador Sea from 1993-06-17 to...

  5. Dissolved inorganic carbon, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the HUDSON in the North Atlantic Ocean from 1993-11-05 to 1993-12-16 (NODC Accession 0113553)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113553 includes chemical, discrete sample, physical and profile data collected from HUDSON in the North Atlantic Ocean from 1993-11-05 to 1993-12-16...

  6. Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2011-05-06 to 2011-05-28 (NODC Accession 0108124)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108124 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean...

  7. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Gulf of St. Lawrence and others from 2001-05-30 to 2001-06-15 (NODC Accession 0108217)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108217 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Gulf of St. Lawrence, Labrador Sea...

  8. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2008-05-20 to 2008-06-04 (NODC Accession 0108224)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108224 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean...

  9. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Gulf of St. Lawrence and others from 2004-05-15 to 2004-05-30 (NODC Accession 0108220)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108220 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Gulf of St. Lawrence, Labrador Sea...

  10. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2003-07-13 to 2003-08-04 (NODC Accession 0108219)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108219 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean...

  11. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2002-06-23 to 2002-07-19 (NODC Accession 0108218)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108218 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean...

  12. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Gulf of St. Lawrence and others from 2000-05-20 to 2000-06-08 (NODC Accession 0108216)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108216 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Gulf of St. Lawrence, Labrador Sea...

  13. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Gulf of St. Lawrence and others from 2006-05-24 to 2006-06-08 (NODC Accession 0108222)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108222 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Gulf of St. Lawrence, Labrador Sea...

  14. SALINITY, HYDROSTATIC PRESSURE, TEMPERATURE, SIGMA-THETA and POTENTIAL TEMPERATURE profile data collected in the North Atlantic Ocean on the CYGNUS, HUDSON and PARIZEAU cruises CY98-079, HUD9877 and others as part of the GB project from 1993-10-12 to 1999-09-29 (NODC Accession 0104393)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0104393 includes profile and physical data collected aboard the CYGNUS, HUDSON and PARIZEAU during cruises CY98-079, HUD9877, PAR93-032, PAR94-018,...

  15. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Gulf of St. Lawrence and others from 1999-06-27 to 1999-07-13 (NODC Accession 0108215)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108215 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Gulf of St. Lawrence, Labrador Sea...

  16. Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2010-05-13 to 2010-05-30 (NODC Accession 0108225)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108225 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean...

  17. Dissolved inorganic carbon, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the HUDSON in the North Atlantic Ocean from 1994-10-12 to 1994-11-10 (NODC Accession 0113555)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113555 includes chemical, discrete sample, physical and profile data collected from HUDSON in the North Atlantic Ocean from 1994-10-12 to 1994-11-10...

  18. Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from HUDSON in the Davis Strait, Gulf of St. Lawrence and others from 2013-05-07 to 2013-05-28 (NCEI Accession 0144303)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NCEI Accession 0144303 includes discrete sample and profile data collected from HUDSON in the Davis Strait, Gulf of St. Lawrence, Labrador Sea and North Atlantic...

  19. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2009-05-17 to 2009-06-01 (NODC Accession 0108073)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0108073 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean...

  20. Dissolved inorganic carbon, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from HUDSON in the Gulf of St. Lawrence and North Atlantic Ocean from 1995-04-19 to 1995-05-16 (NODC Accession 0113556)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NCEI Accession 0113556 includes discrete sample and profile data collected from HUDSON in the Gulf of St. Lawrence and North Atlantic Ocean from 1995-04-19 to...

  1. Dissolved inorganic carbon, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the HUDSON in the Labrador Sea and North Atlantic Ocean from 1992-05-27 to 1992-06-15 (NODC Accession 0113550)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113550 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Labrador Sea and North Atlantic Ocean from...

  2. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the HUDSON in the Gulf of St. Lawrence, Labrador Sea and North Atlantic Ocean from 1998-06-22 to 1998-07-09 (NODC Accession 0113610)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113610 includes chemical, discrete sample, physical and profile data collected from HUDSON in the Gulf of St. Lawrence, Labrador Sea and North...

  3. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the HUDSON in the North Atlantic Ocean, North Greenland Sea and Norwegian Sea from 1982-02-28 to 1982-04-04 (NODC Accession 0113889)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113889 includes chemical, discrete sample, physical and profile data collected from HUDSON in the North Atlantic Ocean, North Greenland Sea and...

  4. Origin of an unusual monazite-xenotime gneiss, Hudson Highlands, New York: SHRIMP U-Pb geochronology and trace element geochemistry

    Science.gov (United States)

    Aleinikoff, John N.; Grauch, Richard I.; Mazdab, Frank K.; Kwak, Loretta; Fanning, C. Mark; Kamo, Sandra L.

    2012-01-01

    A pod of monazite-xenotime gneiss (MXG) occurs within Mesoproterozoic paragneiss, Hudson Highlands, New York. This outcrop also contains granite of the Crystal Lake pluton, which migmatized the paragneiss. Previously, monazite, xenotime, and zircon from MXG, plus detrital zircon from the paragneiss, and igneous zircon from the granite, were dated using multi-grain thermal ionization mass spectrometry (TIMS). New SEM imagery of dated samples reveals that all minerals contain cores and rims. Thus TIMS analyses comprise mixtures of age components and are geologically meaningless. New spot analyses by sensitive high resolution ion microprobe (SHRIMP) of small homogeneous areas on individual grains allows deconvolution of ages within complexly zoned grains. Xenotime cores from MXG formed during two episodes (1034 ± 10 and 1014 ± 3 Ma), whereas three episodes of rim formation are recorded (999 ± 7, 961 ± 11, and 874 ± 11 Ma). Monazite cores from MXG mostly formed at 1004 ± 4 Ma; rims formed at 994 ± 4, 913 ± 7, and 890 ± 7 Ma. Zircon from MXG is composed of oscillatory-zoned detrital cores (2000-1170 Ma), plus metamorphic rims (1008 ± 7, 985 ± 5, and ∼950 Ma). In addition, MXG contains an unusual zircon population composed of irregularly-zoned elongate cores dated at 1036 ± 5 Ma, considered to be the time of formation of MXG. The time of granite emplacement is dated by oscillatory-zoned igneous cores at 1058 ± 4 Ma, which provides a minimum age constraint for the time of deposition of the paragneiss. Selected trace elements, including all REE plus U and Th, provide geochemical evidence for the origin of MXG. MREE-enriched xenotime from MXG are dissimilar from typical HREE-enriched patterns of igneous xenotime. The presence of large negative Eu anomalies and high U and Th in monazite and xenotime are uncharacteristic of typical ore-forming hydrothermal processes. We conclude that MXG is the result of unusual metasomatic processes during high grade

  5. Impact of freshwater on a subarctic coastal ecosystem under seasonal sea ice (southeastern Hudson Bay, Canada). III. Feeding success of marine fish larvae

    Science.gov (United States)

    Fortier, L.; Gilbert, M.; Ponton, D.; Ingram, R. G.; Robineau, B.; Legendre, L.

    1996-02-01

    We monitored the feeding success (percent feeding incidence at length and mean feeding ratio at length) of Arctic cod ( Boreogadus saida) and sand lance ( Ammodytes sp.) larvae in relation to prey density, light, temperature and potential predator density under the ice cover of southeastern Hudson Bay in the spring of 1988, 1989 and 1990. Both prey density and light limited larval fish feeding. The relationship between feeding success and actual food availability (nauplii density X irradiance) was adequately described by an Ivlev function which explained 64 and 76% of the variance in Arctic cod and sand lance feeding success respectively. By affecting both prey density and irradiance, the thickness of the Great Whale River plume (as defined by the depth of the 25 isohaline) was the main determinant of prey availability. Arctic cod and sand lance larvae stopped feeding when the depth of the 25 isohaline exceeded 9 m. Limitation of feeding success attributable to freshwater inputs occurred exclusively in 1988, the only time when the depth of the 25 isohaline exceeded the 9 m threshold. The close dependence of larval fish feeding success on the timing of the freshet and plume dynamics suggests a direct link between climate and survival of Arctic cod and sand lance larvae. The actual impact of climate fluctuations and/or hydro-electric developments on recruitment will depend on the fraction of the larval dispersal area of the two species that is affected by river plumes.

  6. Critique and sensitivity analysis of the compensation function used in the LMS Hudson River striped bass models. Environmental Sciences Division publication No. 944

    Energy Technology Data Exchange (ETDEWEB)

    Van Winkle, W.; Christensen, S.W.; Kauffman, G.

    1976-12-01

    The description and justification for the compensation function developed and used by Lawler, Matusky and Skelly Engineers (LMS) (under contract to Consolidated Edison Company of New York) in their Hudson River striped bass models are presented. A sensitivity analysis of this compensation function is reported, based on computer runs with a modified version of the LMS completely mixed (spatially homogeneous) model. Two types of sensitivity analysis were performed: a parametric study involving at least five levels for each of the three parameters in the compensation function, and a study of the form of the compensation function itself, involving comparison of the LMS function with functions having no compensation at standing crops either less than or greater than the equilibrium standing crops. For the range of parameter values used in this study, estimates of percent reduction are least sensitive to changes in YS, the equilibrium standing crop, and most sensitive to changes in KXO, the minimum mortality rate coefficient. Eliminating compensation at standing crops either less than or greater than the equilibrium standing crops results in higher estimates of percent reduction. For all values of KXO and for values of YS and KX at and above the baseline values, eliminating compensation at standing crops less than the equilibrium standing crops results in a greater increase in percent reduction than eliminating compensation at standing crops greater than the equilibrium standing crops.

  7. A baseline and watershed assessment in the Lynx Creek, Brenot Creek, and Portage Creek watersheds near Hudson's Hope, BC : summary report

    Energy Technology Data Exchange (ETDEWEB)

    Matscha, G.; Sutherland, D. [British Columbia Ministry of Water, Land and Air Protection, Prince George, BC (Canada)

    2005-06-15

    This report summarized a baseline monitoring program for the Lynx Creek, Brenot Creek, and Portage Creek watersheds located near Hudson's Hope, British Columbia (BC). The monitoring program was designed to more accurately determine the effects of potential coalbed gas developments in the region, as well as to assess levels of agricultural and forest harvesting, and the impacts of current land use activities on water quantity and quality. Water quality was sampled at 18 sites during 5 different flow regimes, including summer and fall low flows; ice cover; spring run-off; and high flows after a heavy summer rain event. Sample sites were located up and downstream of both forest and agricultural activities. The water samples were analyzed for 70 contaminants including ions, nutrients, metals, hydrocarbons, and hydrocarbon fractions. Results showed that while many analyzed parameters met current BC water quality guidelines, total organic carbon, manganese, cadmium, E. coli, fecal coliforms, and fecal streptococci often exceeded recommended guidelines. Aluminum and cobalt values exceeded drinking water guidelines. The samples also had a slightly alkaline pH and showed high conductance. A multiple barrier approach was recommended to reduce potential risks of contamination from the watersheds. It was concluded that a more refined bacteria source tracking method is needed to determine whether fecal pollution has emanated from human, livestock or wildlife sources. 1 tab., 9 figs.

  8. Evidence of dissociative amnesia in science and literature: culture-bound approaches to trauma in Pope, Poliakoff, Parker, Boynes, and Hudson (2007).

    Science.gov (United States)

    Goldsmith, Rachel E; Cheit, Ross E; Wood, Mary E

    2009-01-01

    The current culture of traumatic stress studies includes research that identifies the ways in which stress and trauma impair learning and memory in both humans and animals. Yet it also contains health professionals who argue that individuals cannot forget traumatic events. Many accounts present differences among these positions as a legitimate debate despite the substantial forensic, survey, and neurological evidence that both demonstrates the capacity for people to exhibit impaired memory for trauma and highlights specific mechanisms. In a recent article, H. G. Pope, M. B. Poliakoff, M. P. Parker, M. Boynes, and J. I. Hudson (2007) hypothesized that if individuals could forget trauma, the phenomenon would appear in world literature prior to 1800. They conducted a contest to generate submissions of examples and determined that dissociative amnesia is a culture-bound syndrome. Their report fails to provide a thorough account of all submissions and the process through which they were all rejected, offers highly questionable literary analyses, and includes several misrepresentations of the state of the science regarding memory for trauma. This response addresses methodological problems with the contest, explores examples of forgetting trauma from literature written before 1800, examines social and historical aspects of the issue, and summarizes the extensive cognitive and neurological data that Pope et al. did not consider. The present article conceptualizes the premise of the contest and the authors' conclusion as symptomatic of a culture affected by biases that include the denial of trauma and its effects.

  9. Impact of entrainment and impingement on fish populations in the Hudson River Estuary. Volume II. Impingement impact analyses, evaluations of alternative screening devices, and critiques of utility testimony relating to density-dependent growth, the age-composition of the striped bass spawning stock, and the LMS real-time life cycle model

    Energy Technology Data Exchange (ETDEWEB)

    Barnthouse, L. W.; Van Winkle, W.; Golumbek, J.; Cada, G. F.; Goodyear, C. P.; Christensen, S. W.; Cannon, J. B.; Lee, D. W.

    1982-04-01

    This volume includes a series of four exhibits relating to impacts of impingement on fish populations, together with a collection of critical evaluations of testimony prepared for the utilities by their consultants. The first exhibit is a quantitative evaluation of four sources of bias (collection efficiency, reimpingement, impingement on inoperative screens, and impingement survival) affecting estimates of the number of fish killed at Hudson River power plants. The two following exhibits contain, respectively, a detailed assessment of the impact of impingement on the Hudson River white perch population and estimates of conditional impingement mortality rates for seven Hudson River fish populations. The fourth exhibit is an evaluation of the engineering feasibility and potential biological effectiveness of several types of modified intake structures proposed as alternatives to cooling towers for reducing impingement impacts. The remainder of Volume II consists of critical evaluations of the utilities' empirical evidence for the existence of density-dependent growth in young-of-the-year striped bass and white perch, of their estimate of the age-composition of the striped bass spawning stock in the Hudson River, and of their use of the Lawler, Matusky, and Skelly (LMS) Real-Time Life Cycle Model to estimate the impact of entrainment and impingement on the Hudson River striped bass population.

  10. Limnological regime shifts caused by climate warming and Lesser Snow Goose population expansion in the western Hudson Bay Lowlands (Manitoba, Canada).

    Science.gov (United States)

    MacDonald, Lauren A; Farquharson, Nicole; Merritt, Gillian; Fooks, Sam; Medeiros, Andrew S; Hall, Roland I; Wolfe, Brent B; Macrae, Merrin L; Sweetman, Jon N

    2015-02-01

    Shallow lakes are dominant features in subarctic and Arctic landscapes and are responsive to multiple stressors, which can lead to rapid changes in limnological regimes with consequences for aquatic resources. We address this theme in the coastal tundra region of Wapusk National Park, western Hudson Bay Lowlands (Canada), where climate has warmed during the past century and the Lesser Snow Goose (LSG; Chen caerulescens caerulescens) population has grown rapidly during the past ∽40 years. Integration of limnological and paleolimnological analyses documents profound responses of productivity, nutrient cycling, and aquatic habitat to warming at three ponds ("WAP 12", "WAP 20", and "WAP 21″), and to LSG disturbance at the two ponds located in an active nesting area (WAP 20, WAP 21). Based on multiparameter analysis of (210)Pb-dated sediment records from all three ponds, a regime shift occurred between 1875 and 1900 CE marked by a transition from low productivity, turbid, and nutrient-poor conditions of the Little Ice Age to conditions of higher productivity, lower nitrogen availability, and the development of benthic biofilm habitat as a result of climate warming. Beginning in the mid-1970s, sediment records from WAP 20 and WAP 21 reveal a second regime shift characterized by accelerated productivity and increased nitrogen availability. Coupled with 3 years of limnological data, results suggest that increased productivity at WAP 20 and WAP 21 led to atmospheric CO2 invasion to meet algal photosynthetic demand. This limnological regime shift is attributed to an increase in the supply of catchment-derived nutrients from the arrival of LSG and their subsequent disturbance to the landscape. Collectively, findings discriminate the consequences of warming and LSG disturbance on tundra ponds from which we identify a suite of sensitive limnological and paleolimnological measures that can be utilized to inform aquatic ecosystem monitoring.

  11. Impact of freshwater on a subarctic coastal ecosystem under seasonal sea ice (southeastern Hudson Bay, Canada) II. Production and export of microalgae

    Science.gov (United States)

    Legendre, L.; Robineau, B.; Gosselin, M.; Michel, C.; Ingram, R. G.; Fortier, L.; Therriault, J. C.; Demers, S.; Monti, D.

    1996-02-01

    In the under-ice plume of the Grande rivière de la Baleine (Great Whale River) and offshore waters of southeastern Hudson Bay (Canada), several environmental factors influence the distribution, growth, taxonomic composition and sedimentation of algae found in the sea ice, at the ice-water interface and in the underlying water column. During the spring and early summer, these factors include: salinity of bottom ice, water turbidity, nutrients and vertical stability of the water column. In the present study, relationships between three predictor variables (water salinity, river runoff and seasonal air temperature index) and biological variables are used to assess the impact of freshwater on production and export of microalgae. Relationships are derived from existing data, which were collected between 1978 and 1990. Correlations with water salinity are positive for some variables (salinity of bottom ice, phosphate, ammonium, Σ:Si, and algae in bottom ice and at the interface) and negative for others (coefficient of light attenuation, silicate, ΣN:P, ΣSi:P and water column phytoplankton). Using together salinity and the seasonal index leads to improved proportions of explained variance for nitrate, ammonium, ΣN:P and phytoplankton. The amount of sedimenting algae is positively correlated with runoff, and chemical composition (C/N) of the sedimenting material is negatively correlated with salinity. The empirical relationships are applied to the results of a model of river plume dynamics, for three runoff conditions. Seasonally averaged total Chl. a concentrations, derived from the model, are higher for maximum river runoff than for mean or minimum conditions. This is because, in the studied environment, areal concentrations of phytoplankton are higher than those of ice algae, especially under condition of maximum runoff.

  12. Trans-Hudson Orogen of North America and Himalaya-Karakoram-Tibetan Orogen of Asia: Structural and thermal characteristics of the lower and upper plates

    Science.gov (United States)

    St-Onge, Marc R.; Searle, Michael P.; Wodicka, Natasha

    2006-08-01

    The Trans-Hudson Orogen (THO) of North America and the Himalaya-Karakoram-Tibetan Orogen (HKTO) of Asia preserve a Paleoproterozoic and Cenozoic record, respectively, of continent-continent collision that is notably similar in scale, duration and character. In THO, the tectonothermal evolution of the lower plate involves (1) early thin-skinned thrusting and Barrovian metamorphism, (2) out-of-sequence thrusting and high-T metamorphism, and (3) fluid-localized reequilibration, anatexis, and leucogranite formation. The crustal evolution of the Indian lower plate in HKTO involves (1) early subduction of continental crust to ultrahigh pressure (UHP) eclogite depths, (2) regional Barrovian metamorphism, and (3) widespread high-T metamorphism, anatexis, and leucogranite formation. The shallow depths of the high-T metamorphism in HKTO are consistent with early to mid-Miocene ductile flow of an Indian lower plate midcrustal channel, from beneath the southern Tibetan Plateau to the Greater Himalaya. Melt weakening of the lower plate in THO is not observed at a similar scale probably due to the paucity of pelitic lithologies. Tectonothermal events in the upper plate of both orogens include precollisional accretion of crustal blocks, emplacement of Andean-type plutonic suites, and high-T metamorphism. Syncollisional to postcollisional events include emplacement of garnet-biotite-muscovite leucogranites, anatectic granites, and sporadic metamorphism (up to 90 Myr following the onset of collision in THO). Comparing the type and duration of tectonothermal events for THO and HKTO supports the notion of tectonic uniformitarianism for at least the later half of dated Earth history and highlights the complementary nature of the rock record in an older "exhumed" orogen compared to one undergoing present-day orogenesis.

  13. Patterns of organic contaminants in eggs of an insectivorous, an omnivorous, and a piscivorous bird nesting on the Hudson River, New York, USA

    Science.gov (United States)

    Custer, Christine M.; Custer, Thomas W.; Dummer, Paul M.

    2010-01-01

    Belted kingfisher (Ceryle alcyon), spotted sandpiper (Actitus macularia), and tree swallow (Tachycineta bicolor) eggs were collected in 2004 from the upper Hudson River, New York, USA. This area is one of the most polychlorinated biphenyl (PCB)-contaminated locations in North America. Multivariate analyses indicated among species differences in the concentration and composition of PCB congeners, polychlorinated dibenzo-p-dioxin (PCDD), and dibenzofuran (PCDF, PCDD-F when combined with PCDDs) congeners, and chlorinated pesticides. Total PCB concentrations followed the typical food chain biomagnification paradigm of higher concentrations in piscivorous bird eggs and lower concentrations in eggs of species that feed at lower trophic levels. Concentrations in the insectivorous swallows (geometric mean=6.8μg/g wet wt) were approximately half the concentrations present in the piscivorous kingfisher (11.7μg/g) or omnivorous sandpiper (12.6μg/g). In contrast, PCB toxic equivalents (TEQs) were higher in swallows (1,790 pg/g wet wt) than in either kingfishers (776pg/g) or sandpipers (881pg/g). This difference can be mainly attributed to higher PCB77 concentrations in swallows relative to the other two species. Also contrary to the accepted food-chain paradigm, the sum of PCDD-F concentrations and the sum of their TEQs were higher in swallows than in either sandpipers or kingfishers. Metabolic pathway differences in the respective food chains of the three species probably accounted for the differences observed in PCB TEQ, total PCDD-F, and PCDD-F TEQ concentrations among species.

  14. Antioxidant activity, the content of total phenols and flavonoids in the ethanol extracts of Mentha longifolia (L. Hudson dried by the use of different techniques

    Directory of Open Access Journals (Sweden)

    Stanisavljević Dragana M.

    2012-01-01

    Full Text Available In this study, we have examined the yield of extracted substances obtained by means of extraction using 70 % ethanol (v/v, the content of total phenols and flavonoids, as well as the antioxidant activity of the extracts obtained from the samples of the herbs dried by means of different techniques. Wild mint Mentha longifolia (L. Hudson was dried naturally in a laboratory oven at a temperature of 45 °C and in an absorptive low temperature condensation oven at 35°C. The highest yield of extracts was obtained from the naturally dried herbs and the lowest from the herbs dried in the low temperature condensation drying oven. The content of total phenols and flavonoids was determined by spectrophotometric methods with an FC reagent and by the complexation reaction with aluminium-chloride, respectively. The extract of the naturally dried herbs had the highest overall content of phenols (113.8±2.0 mg of gallic acid/g of the dry extract and flavonoids (106.7±0.3 mg of rutin/g of the dry extract. The highest antioxidant activity determined by the FRAP and DPPH assay was determined in the extracts obtained from naturally dried herbs (2.76±0.15 mmol Fe2+/mg of the dry extract and EC50=0.022±0.001 mg/ml, while the lowest was obtained from the extracts of herbs dried in the laboratory oven (1.13±0.11 mmol Fe2+/mg of the dry extract and EC50=0.033±0.001 mg/ml. The HPLC-DAD analysis result show that the greatest content of phenolic compounds show extract obtained from naturally dried plant material. The dominant phenolic component in the all extracts is Kaempferol 3-O-glucoside. The content of all phenolic compound strongly depend on the drying conditions.

  15. The Hudson River School and the Rising of American Self- Identity%哈德逊河画派与美国自我意识的崛起

    Institute of Scientific and Technical Information of China (English)

    陈继玲

    2012-01-01

    国内学者对美国文化研究的视角主要集中在政治经济领域,鲜有从艺术活动的角度考察美国文化的意义。在某种层面上,艺术活动可以反映一个时期国家占主导地位的意识观念。从19世纪中期流行于美国的哈德逊河画派的风景画的剖析人手,可以洞察这一时期美国的主流意识观念。从中可以看出,美国在文化上的自我意识最早出现于19世纪中叶。在这个阶段,美国不仅加强了国家认同,而且意识到在文化上需要脱离欧洲的影响,形成独立的美国文化。%American culture is a hot issue in China recently. The perspectives of American culture by many scholars are limited in political and economic fields. Few of them think of it from the actions of arts. In certain levels, the actions of arts can represent the ever dominated ideas of a country. This paper begins with the landscape paintings of Hudson River School which was rather popular in the middle of 19th century in America, then scrutinizes the dominated ideas hidden in it, and concludes that the earliest self - consciousness of America appeared in the middle of 19th century. In this period, America not only developed its self - identity, but also realized the importance of independent from Europe in culture.

  16. Limnological regime shifts caused by climate warming and Lesser Snow Goose population expansion in the western Hudson Bay Lowlands (Manitoba, Canada)

    Science.gov (United States)

    MacDonald, Lauren A; Farquharson, Nicole; Merritt, Gillian; Fooks, Sam; Medeiros, Andrew S; Hall, Roland I; Wolfe, Brent B; Macrae, Merrin L; Sweetman, Jon N

    2015-01-01

    Shallow lakes are dominant features in subarctic and Arctic landscapes and are responsive to multiple stressors, which can lead to rapid changes in limnological regimes with consequences for aquatic resources. We address this theme in the coastal tundra region of Wapusk National Park, western Hudson Bay Lowlands (Canada), where climate has warmed during the past century and the Lesser Snow Goose (LSG; Chen caerulescens caerulescens) population has grown rapidly during the past ∽40 years. Integration of limnological and paleolimnological analyses documents profound responses of productivity, nutrient cycling, and aquatic habitat to warming at three ponds (“WAP 12”, “WAP 20”, and “WAP 21″), and to LSG disturbance at the two ponds located in an active nesting area (WAP 20, WAP 21). Based on multiparameter analysis of 210Pb-dated sediment records from all three ponds, a regime shift occurred between 1875 and 1900 CE marked by a transition from low productivity, turbid, and nutrient-poor conditions of the Little Ice Age to conditions of higher productivity, lower nitrogen availability, and the development of benthic biofilm habitat as a result of climate warming. Beginning in the mid-1970s, sediment records from WAP 20 and WAP 21 reveal a second regime shift characterized by accelerated productivity and increased nitrogen availability. Coupled with 3 years of limnological data, results suggest that increased productivity at WAP 20 and WAP 21 led to atmospheric CO2 invasion to meet algal photosynthetic demand. This limnological regime shift is attributed to an increase in the supply of catchment-derived nutrients from the arrival of LSG and their subsequent disturbance to the landscape. Collectively, findings discriminate the consequences of warming and LSG disturbance on tundra ponds from which we identify a suite of sensitive limnological and paleolimnological measures that can be utilized to inform aquatic ecosystem monitoring. PMID:25750718

  17. Selective analysis of power plant operation on the Hudson River with emphasis on the Bowline Point Generating Station. Volume 2. [Multiple impact of power plant once-through cooling systems on fish populations

    Energy Technology Data Exchange (ETDEWEB)

    Barnthouse, L. W.; Cannon, J. B.; Christensen, S. G.

    1977-07-01

    Because of the location of the Bowline, Roseton, and Indian Point power generating facilities in the low-salinity zone of the Hudson estuary, operation of these plants with the present once-through cooling systems will adversely influence the fish populations that use the area for spawning and initial periods of growth and development. Recruitment rates and standing crops of several fish species may be lowered in response to the increased mortality caused by entrainment of nonscreenable eggs and larvae and by impingement of screenable young of the year. Entrainment and impingement data are particularly relevant for assessing which fish species have the greatest potential for being adversely affected by operation of Bowline, Roseton, and Indian Point with once-through cooling. These data from each of these three plants suggest that the six species that merit the greatest consideration are striped bass, white perch, tomcod, alewife, blueback herring, and bay anchovy. Two points of view are available for assessing the relative importance of the fish species in the Hudson River. From the fisheries point of view, the only two species of major importance are striped bass and shad. From the fish-community and ecosystem point of view, the dominant species, as determined by seasonal and regional standing crops (in numbers and biomass per hectare), are the six species most commonly entrained and impinged, namely, striped bass, white perch, tomcod, alewife, blueback herring, and anchovy.

  18. Demography of an apex predator at the edge of its range: impacts of changing sea ice on polar bears in Hudson Bay

    Science.gov (United States)

    Lunn, Nicholas J.; Servanty, Sabrina; Regehr, Eric V.; Converse, Sarah J.; Richardson, Evan S.; Stirling, Ian

    2016-01-01

    Changes in the abundance and distribution of wildlife populations are common consequences of historic and contemporary climate change. Some Arctic marine mammals, such as the polar bear (Ursus maritimus), may be particularly vulnerable to such changes due to the loss of Arctic sea ice. We evaluated the impacts of environmental variation on demographic rates for the Western Hudson Bay (WH), polar bear subpopulation from 1984 to 2011 using live-recapture and dead-recovery data in a Bayesian implementation of multistate capture–recapture models. We found that survival of female polar bears was related to the annual timing of sea ice break-up and formation. Using estimated vital rates (e.g., survival and reproduction) in matrix projection models, we calculated the growth rate of the WH subpopulation and projected population responses under different environmental scenarios while accounting for parametric uncertainty, temporal variation, and demographic stochasticity. Our analysis suggested a long-term decline in the number of bears from 1185 (95% Bayesian credible interval [BCI] = 993–1411) in 1987 to 806 (95% BCI = 653–984) in 2011. In the last 10 yr of the study, the number of bears appeared stable due to temporary stability in sea ice conditions (mean population growth rate for the period 2001–2010 = 1.02, 95% BCI = 0.98–1.06). Looking forward, we estimated long-term growth rates for the WH subpopulation of ~1.02 (95% BCI = 1.00–1.05) and 0.97 (95% BCI = 0.92–1.01) under hypothetical high and low sea ice conditions, respectively. Our findings support previous evidence for a demographic linkage between sea ice conditions and polar bear population dynamics. Furthermore, we present a robust framework for sensitivity analysis with respect to continued climate change (e.g., to inform scenario planning) and for evaluating the combined effects of climate change and management actions on the status of wildlife populations.

  19. Estimation of low-flow statistics at ungaged sites on streams in the Lower Hudson River Basin, New York, from data in geographic information systems

    Science.gov (United States)

    Randall, Allan D.; Freehafer, Douglas A.

    2017-08-02

    A variety of watershed properties available in 2015 from geographic information systems were tested in regression equations to estimate two commonly used statistical indices of the low flow of streams, namely the lowest flows averaged over 7 consecutive days that have a 1 in 10 and a 1 in 2 chance of not being exceeded in any given year (7-day, 10-year and 7-day, 2-year low flows). The equations were based on streamflow measurements in 51 watersheds in the Lower Hudson River Basin of New York during the years 1958–1978, when the number of streamflow measurement sites on unregulated streams was substantially greater than in subsequent years. These low-flow indices are chiefly a function of the area of surficial sand and gravel in the watershed; more precisely, 7-day, 10-year and 7-day, 2-year low flows both increase in proportion to the area of sand and gravel deposited by glacial meltwater, whereas 7-day, 2-year low flows also increase in proportion to the area of postglacial alluvium. Both low-flow statistics are also functions of mean annual runoff (a measure of net water input to the watershed from precipitation) and area of swamps and poorly drained soils in or adjacent to surficial sand and gravel (where groundwater recharge is unlikely and riparian water loss to evapotranspiration is substantial). Small but significant refinements in estimation accuracy resulted from the inclusion of two indices of stream geometry, channel slope and length, in the regression equations. Most of the regression analysis was undertaken with the ordinary least squares method, but four equations were replicated by using weighted least squares to provide a more realistic appraisal of the precision of low-flow estimates. The most accurate estimation equations tested in this study explain nearly 84 and 87 percent of the variation in 7-day, 10-year and 7-day, 2-year low flows, respectively, with standard errors of 0.032 and 0.050 cubic feet per second per square mile. The equations

  20. Demography of an apex predator at the edge of its range: impacts of changing sea ice on polar bears in Hudson Bay.

    Science.gov (United States)

    Lunn, Nicholas J; Servanty, Sabrina; Regehr, Eric V; Converse, Sarah J; Richardson, Evan; Stirling, Ian

    2016-07-01

    Changes in the abundance and distribution of wildlife populations are common consequences of historic and contemporary climate change. Some Arctic marine mammals, such as the polar bear (Ursus maritimus), may be particularly vulnerable to such changes due to the loss of Arctic sea ice. We evaluated the impacts of environmental variation on demographic rates for the Western Hudson Bay (WH), polar bear subpopulation from 1984 to 2011 using live-recapture and dead-recovery data in a Bayesian implementation of multistate capture-recapture models. We found that survival of female polar bears was related to the annual timing of sea ice break-up and formation. Using estimated vital rates (e.g., survival and reproduction) in matrix projection models, we calculated the growth rate of the WH subpopulation and projected population responses under different environmental scenarios while accounting for parametric uncertainty, temporal variation, and demographic stochasticity. Our analysis suggested a long-term decline in the number of bears from 1185 (95% Bayesian credible interval [BCI] = 993-1411) in 1987 to 806 (95% BCI = 653-984) in 2011. In the last 10 yr of the study, the number of bears appeared stable due to temporary stability in sea ice conditions (mean population growth rate for the period 2001-2010 = 1.02, 95% BCI = 0.98-1.06). Looking forward, we estimated long-term growth rates for the WH subpopulation of ~1.02 (95% BCI = 1.00-1.05) and 0.97 (95% BCI = 0.92-1.01) under hypothetical high and low sea ice conditions, respectively. Our findings support previous evidence for a demographic linkage between sea ice conditions and polar bear population dynamics. Furthermore, we present a robust framework for sensitivity analysis with respect to continued climate change (e.g., to inform scenario planning) and for evaluating the combined effects of climate change and management actions on the status of wildlife populations.

  1. Ash storms: impacts of wind-remobilised volcanic ash on rural communities and agriculture following the 1991 Hudson eruption, southern Patagonia, Chile

    Science.gov (United States)

    Wilson, T. M.; Cole, J. W.; Stewart, C.; Cronin, S. J.; Johnston, D. M.

    2011-04-01

    Tephra fall from the August 1991 eruption of Volcán Hudson affected some 100,000 km2 of Patagonia and was almost immediately reworked by strong winds, creating billowing clouds of remobilised ash, or `ash storms'. The immediate impacts on agriculture and rural communities were severe, but were then greatly exacerbated by continuing ash storms. This paper describes the findings of a 3-week study tour of the diverse environments of southern Patagonia affected by ash storms, with an emphasis on determining the impacts of repeated ash storms on agriculture and local practices that were developed in an attempt to mitigate these impacts. Ash storms produce similar effects to initial tephra eruptions, prolonged for considerable periods. These have included the burial of farmland under dune deposits, abrasion of vegetation and contamination of feed supplies with fine ash. These impacts can then cause problems for grazing animals such as starvation, severe tooth abrasion, gastrointestinal problems, corneal abrasion and blindness, and exhaustion if sheep fleeces become laden with ash. In addition, ash storms have led to exacerbated soil erosion, human health impacts, increased cleanup requirements, sedimentation in irrigation canals, and disruption of aviation and land transport. Ash deposits were naturally stabilised most rapidly in areas with high rainfall (>1,500 mm/year) through compaction and enhanced vegetation growth. Stabilisation was slowest in windy, semi-arid regions. Destruction of vegetation and suppression of regrowth by heavy tephra fall (>100 mm) hindered the stabilisation of deposits for years, and reduced the surface friction which increased wind erosivity. Stabilisation of tephra deposits was improved by intensive tillage, use of windbreaks and where there was dense and taller vegetative cover. Long-term drought and the impracticality of mixing ash deposits with soil by tillage on large farms was a barrier to stabilising deposits and, in turn

  2. Deciphering the Paleoproterozoic cooling history of the northeastern Trans-Hudson Orogen, Baffin Island (Canada), using 40Ar/39Ar step-heating and UV laser thermochronology

    Science.gov (United States)

    Skipton, D. R.; Schneider, D. A.; Kellett, D. A.; Joyce, N. L.

    2017-07-01

    The previously unstudied cooling and exhumation history of mid-crustal rocks exposed on southeastern Baffin Island (Canada) provides new insights into the post-orogenic evolution of the Paleoproterozoic Trans-Hudson Orogen (THO). New 40Ar/39Ar step-heat analyses of biotite, muscovite and phlogopite and core-to-rim intra-grain 40Ar/39Ar analyses of muscovite have a range of apparent ages compatible with slow regional cooling following peak metamorphism. Twenty-nine amphibolite- to granulite-facies rocks were dated using the 40Ar/39Ar step-heating laser (CO2) method. 40Ar/39Ar spot analyses were performed across muscovite grains from three samples using an ultraviolet (UV) laser to investigate intra-grain 40Ar/39Ar age variations. Step-heating apparent ages range from ca. 1788-1622 Ma for biotite, 1720-1630 Ma for phlogopite and 1729-1657 Ma for muscovite. UV spot 40Ar/39Ar analyses in the three muscovite grains range from ca. 1661-1640 Ma, 1675-1645 Ma and 1680-1652 Ma, with core-to-rim apparent age gradients of 20-30 Myr. Previous studies resolved peak metamorphism in this region to between ca. 1860 and 1820 Ma and identified late- to post-THO zircon and monazite populations at ca. 1800-1750 Ma. Numerical diffusion models for Ar in muscovite were conducted to test different Proterozoic cooling and exhumation scenarios. Comparisons with our 40Ar/39Ar ages attest to cooling rates of 1-2 °C/Myr following peak metamorphism and 1.5-2.5 °C/Myr after ca. 1740 Ma. Anomalously old apparent 40Ar/39Ar ages, in cases equivalent to U-Pb zircon rim and monazite ages, likely result from incorporation of excess Ar. The results suggest that mid-crustal rocks on southeastern Baffin Island remained hotter than 420-450 °C for 150-200 Myr after peak metamorphism, with subsequent slow cooling and denudation rates that are typical of Proterozoic orogens. The apparent absence of orogenic collapse implies that, despite high temperatures and estimated maximum crustal thicknesses

  3. The role of diet on long-term concentration and pattern trends of brominated and chlorinated contaminants in western Hudson Bay polar bears, 1991-2007

    Energy Technology Data Exchange (ETDEWEB)

    McKinney, Melissa A., E-mail: melissaamckinney@gmail.com [Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment Canada, Carleton University (Raven Road), Ottawa, Ontario K1A 0H3 (Canada); Department of Chemistry, Carleton University, Ottawa, Ontario K1S 5B6 (Canada); Stirling, Ian; Lunn, Nick J. [Wildlife Research Division, Science and Technology Branch, Environment Canada, 5320 122 Street, Edmonton, Alberta T6H 3S5 (Canada); Peacock, Elizabeth [Department of Environment, Government of Nunavut, Igloolik, Nunavut X0A 0L0 (Canada); Letcher, Robert J., E-mail: robert.letcher@ec.gc.ca [Ecotoxicology and Wildlife Health Division, Science and Technology Branch, Environment Canada, Carleton University (Raven Road), Ottawa, Ontario K1A 0H3 (Canada); Department of Chemistry, Carleton University, Ottawa, Ontario K1S 5B6 (Canada)

    2010-11-15

    Adipose tissue was sampled from the western Hudson Bay (WHB) subpopulation of polar bears at intervals from 1991 to 2007 to examine temporal trends of PCB and OCP levels both on an individual and sum-({Sigma}-)contaminant basis. We also determined levels and temporal trends of emerging polybrominated diphenyl ethers (PBDEs), hexabromocyclododecane (HBCD), polybrominated biphenyls (PBBs) and other current-use brominated flame retardants. Over the 17-year period, {Sigma} DDT (and p,p'-DDE, p,p'-DDD, p,p'-DDT) decreased (-8.4%/year); {alpha}-hexachlorocyclohexane ({alpha}-HCH) decreased (-11%/year); {beta}-HCH increased (+ 8.3%/year); and {Sigma} PCB and {Sigma} chlordane (CHL), both contaminants at highest concentrations in all years (> 1 ppm), showed no distinct trends even when compared to previous data for this subpopulation dating back to 1968. Some of the less persistent PCB congeners decreased significantly (-1.6%/year to -6.3%/year), whereas CB153 levels tended to increase (+ 3.3%/year). Parent CHLs (c-nonachlor, t-nonachlor) declined, whereas non-monotonic trends were detected for metabolites (heptachlor epoxide, oxychlordane). {Sigma} chlorobenzene, octachlorostyrene, {Sigma} mirex, {Sigma} MeSO{sub 2}-PCB and dieldrin did not significantly change. Increasing {Sigma} PBDE levels (+ 13%/year) matched increases in the four consistently detected congeners, BDE47, BDE99, BDE100 and BDE153. Although no trend was observed, total-({alpha})-HBCD was only detected post-2000. Levels of the highest concentration brominated contaminant, BB153, showed no temporal change. As long-term ecosystem changes affecting contaminant levels may also affect contaminant patterns, we examined the influence of year (i.e., aging or 'weathering' of the contaminant pattern), dietary tracers (carbon stable isotope ratios, fatty acid patterns) and biological (age/sex) group on congener/metabolite profiles. Patterns of PCBs, CHLs and PBDEs were correlated with

  4. The Hudson Bay Lithospheric Experiment

    Science.gov (United States)

    Bastow, I. D.; Kendall, J.-M.; Helffrich, G. R.; Thompson, D. A.; Wookey, J.; Brisbourne, A. M.; Hawthorn, D.; Eaton, D.; Snyder, D. B.

    2011-12-01

    I D Bastow, J-M Kendall, A M Brisbourne, D B Snyder, D Thompson, D Hawthorn, G R Helffrich, J Wookey, A Horleston and D Eaton describe the motivation for - and successful operation of - a remote seismic survey in Arctic Canada.

  5. Accessibility on the Hudson River

    Science.gov (United States)

    Exceptional Parent, 2010

    2010-01-01

    This article describes how Beverly and Martin Ryfa, working with an architect who specializes in accessible design, were able to build a house that is handicap accessible for their 9-year-old daughter, Danielle, who suffered an intraventricular hemorrhage when she was three days old. The article describes the features of their house that make…

  6. 江蓠[Gracilaria verrucosa(Huds.)Papenfuss]的生长与生殖周期的初步观察

    Institute of Scientific and Technical Information of China (English)

    王素平; 张祐基

    1981-01-01

    江蓠由于分布广泛、生长快和捞取方便,在琼胶工业中较其他琼胶原藻越来越具有更大的发展前途。Causey、Isaac、,Iones、stokke、齑藤让及曾呈奎等,曾就江蓠的生长与生殖等问题进行过一些研究,提供了一些有用的资料。

  7. Gracilaria vermiculophylla (Ohmi) Papenfuss, 1967 (Rhodophyta, Gracilariaceae) in northern Europe, with emphasis on Danish conditions, and what to expect in the future

    DEFF Research Database (Denmark)

    Thomsen, Mads S.; Stæhr, Peter Anton; Nyberg, Cecilia D.

    2007-01-01

    Gracilaria vermiculophylla, a red macroalga from the West Pacific, was discovered in western Germany (the Wadden Sea) in 2002 and has since also been observed in Sweden (from about 70 km south to about 80 km north of Göteborg), Denmark (Wadden Sea, Horsens Fjord, Limfjorden, Vejle Fjord, Holckenh...

  8. Hudson Nyabuga Nyambaka" and Janice Ryley"

    African Journals Online (AJOL)

    were detected in low but sometimes in measurable amounts on some dehydrated and/or ... vegetables as they contain carotene, vitamin C, protein, calcium and iron. .... Ultraviolet-visible (UV-VIS) spectra were recorded in hexane solution for.

  9. Methylsulfone polychlorinated biphenyl and 2,2-bis(chlorophenyl)-1,1-dichloroethylene metabolites in beluga whale (Delphinapterus leucas) from the St. Lawrence River estuary and western Hudson Bay, Canada

    Energy Technology Data Exchange (ETDEWEB)

    Letcher, R.J.; Norstrom, R.J.; Muir, D.C.G.; Sandau, C.D.; Koczanski, K.; Michaud, R.; De Guise, S.; Beland, P.

    2000-05-01

    Knowledge is limited regarding methylsulfone (MeSO{sub 2})-polychlorinated biphenyl (PCB), and especially MeSo{sub 2}-2,2-bis(chlorophenyl)-1,1-dichloroethylene (DDE), metabolites in cetacean species. The authors hypothesized that the ability of beluga whale (Delphinapterus leucas) to biotransform PCB and DDE compounds, and to form and degrade their MeSO{sub 2}-PCB and -DDE metabolites, is related to the capacity for xenobiotic metabolism. Adipose biopsies were collected from male and female beluga whale from distinct populations in the St. Lawrence River estuary (STL) and western Hudson Bay (WHB), Canada, which are contrasted by the exposure to different levels of cytochrome P450 enzyme-inducing, chlorinated hydrocarbon contaminants. The PCBs, DDTs, DDEs, 28 MeSO{sub 2} metabolites of 14 meta-para chlorine-unsubstituted PCBs, and four MeSO{sub 2} metabolites of 4,4{prime}- and 2,4{prime}-DDE were determined. The mean concentrations of total ({Sigma}-) MeSO{sub 2}-PCB in male STL beluga (230 ng/g), and ratios of {Sigma}-MeSO{sub 2}-PCB to {Sigma}-PCB (0.05) and {Sigma}-precursor-PCB (0.17) were approximately twofold higher, whereas the {Sigma}-precursor-PCB to {Sigma}-PCB ratio was approximately twofold lower, than in male WHB beluga. Both populations had a low formation capacity for MeSO{sub 2}-PCBs with {le} six chlorines (<4% of {Sigma}-MeSO{sub 2}-PCBs). The congener patterns were dominated by trichloro- and tetrachloro-MeSO{sub 2}-PCBs, and tetrachloro- and pentachloro-MeSO{sub 2}-PCBs in WHB and STL animals, respectively. In addition to 2- and 3-MeSO{sub 2}-4,4{prime}-DDE, two unknown MeSO{sub 2}-2,4{prime}-DDEs were detected. The mean 3-MeSO{sub 2}-4,4{prime}-DDE concentration in STL beluga (1.2 ng/g) was much greater than in WHB animals. The concentrations of 4,4{prime}-DDE, and not 3-MeSO{sub 2}-4,4{prime}-DDE, increased with age in male STL animals. The authors demonstrated that sulfone formation and clearance is related to metabolic capacity, and thus

  10. Impact of entrainment and impingement on fish populations in the Hudson River estuary. Volume III. An analysis of the validity of the utilities' stock-recruitment curve-fitting exercise and prior estimation of beta technique. Environmental Sciences Division publication No. 1792

    Energy Technology Data Exchange (ETDEWEB)

    Christensen, S. W.; Goodyear, C. P.; Kirk, B. L.

    1982-03-01

    This report addresses the validity of the utilities' use of the Ricker stock-recruitment model to extrapolate the combined entrainment-impingement losses of young fish to reductions in the equilibrium population size of adult fish. In our testimony, a methodology was developed and applied to address a single fundamental question: if the Ricker model really did apply to the Hudson River striped bass population, could the utilities' estimates, based on curve-fitting, of the parameter alpha (which controls the impact) be considered reliable. In addition, an analysis is included of the efficacy of an alternative means of estimating alpha, termed the technique of prior estimation of beta (used by the utilities in a report prepared for regulatory hearings on the Cornwall Pumped Storage Project). This validation methodology should also be useful in evaluating inferences drawn in the literature from fits of stock-recruitment models to data obtained from other fish stocks.

  11. Bien recolectada pero mal tratada. El manejo municipal de la basura en Ciudad Obregón, Hermosillo y Nogales, Sonora

    OpenAIRE

    Nicolás Pineda Pablos; Edmundo Loera Burnes

    2007-01-01

    Este trabajo hace un acercamiento a la manera cómo los gobiernos municipales manejan la basura desde el punte de vista del enfoque denominado "gestión integral de los residuos sólidos". Para ello, primeramente se revisan el concepto y los tipos de basura, así como las características del modelo de gestión integral de la basura y algunas ideas sobre el papel de los "pepenadores". Posteriormente, se exponen los procesos de recolección y tratamiento de la basura, así como las actividades de reci...

  12. Composicion quimica de los aceites esenciales de las hojas de Helicteres guazumifolia , piper tuberculatum y Solanum subinerme , recolectadas en Sucre, Venezuela

    National Research Council Canada - National Science Library

    Ordaz, Gabriel; D'Armas, Haydelba; Yanez, Dayanis; Moreno, Shailili

    2011-01-01

    Los aceites esenciales son biosintetizados por plantas aromaticas y pueden obtenerse de cualquier organo de la misma, tienen gran aplicacion en la industria farmaceutica, sanitaria, cosmetica, agricola y de alimentos...

  13. Bien recolectada pero mal tratada. El manejo municipal de la basura en Ciudad Obregón, Hermosillo y Nogales, Sonora

    Directory of Open Access Journals (Sweden)

    Nicolás Pineda Pablos

    2007-01-01

    Full Text Available Este trabajo hace un acercamiento a la manera cómo los gobiernos municipales manejan la basura desde el punte de vista del enfoque denominado "gestión integral de los residuos sólidos". Para ello, primeramente se revisan el concepto y los tipos de basura, así como las características del modelo de gestión integral de la basura y algunas ideas sobre el papel de los "pepenadores". Posteriormente, se exponen los procesos de recolección y tratamiento de la basura, así como las actividades de reciclaje y pepena que se llevan a cabo en Ciudad Obregón, Hermosillo y Nogales en el estado de Sonora (México. El estudio muestra que los servicios de estas ciudades están abocados principalmente a la etapa de la recolección y no contemplan ni la reducción ni el reciclaje. De las tres ciudades, sólo Hermosillo ha emprendido actividades parciales de reciclado y promoción de la reducción. En lo que se refiere al tratamiento, únicamente Hermosillo cuenta con un relleno sanitario que funciona adecuadamente, mientras que en Nogales el relleno sanitario con que se cuenta se maneja como tiradero y Ciudad Obregón carece enteramente de un sitio adecuado para el confinamiento de la basura. Por último, se revisa la situación del reciclado informal que hacen los pepenadores y se sugieren medidas a fin de formalizar su labor.

  14. Composición química del agua de lluvia y de niebla recolectada en la reserva biológica Monteverde

    Directory of Open Access Journals (Sweden)

    Tatiana Vásquez Morera

    2016-03-01

    Full Text Available Se determinó la composición química del agua de lluvia y de niebla en tres sitios en la Reserva Biológica Monteverde, Puntarenas; entre octubre 2009 y enero 2010. Debido a su estado de conservación y a su ubicación geográfica sobre la deriva continental, la Reserva Biológica Monteverde ofrece un sitio de estudio ideal, para el estudio de la composición de las aguas atmosféricas (agua de lluvia y de niebla. Las muestras de agua de niebla se recolectaron al utilizar muestreadores de niebla con líneas de teflón, mientras que las de agua de lluvia se recogieron al emplear muestreadores de lluvia simples y uno de cascada. En ambos tipos de agua se analizaron las especies iónicas más relevantes: H3O+, NH4 +, Ca2+, Mg2+, K+, Na+, Cl-, NO3 - y SO4 2-, al utilizar cromatografía de iones y detección por conductividad eléctrica. Las concentraciones promedio de estas especies en el agua de lluvia estuvieron entre 0,54 ± 0,02 μeq L-1 y 101± 3 μeq L-1, mientras que en el agua de niebla variaron entre 1,00 ± 0,02 μeq L-1 y 93 ± 4 μeq L-1. Además, se presentan el balance iónico y los factores de enriquecimiento con respecto al mar y el suelo de ambos tipos de muestras.

  15. Phlorotannin Extracts from Fucales Characterized by HPLC-DAD-ESI-MSn: Approaches to Hyaluronidase Inhibitory Capacity and Antioxidant Properties

    Directory of Open Access Journals (Sweden)

    Patrícia Valentão

    2012-12-01

    Full Text Available Purified phlorotannin extracts from four brown seaweeds (Cystoseira nodicaulis (Withering M. Roberts, Cystoseira tamariscifolia (Hudson Papenfuss, Cystoseira usneoides (Linnaeus M. Roberts and Fucus spiralis Linnaeus, were characterized by HPLC-DAD-ESI-MSn. Fucophloroethol, fucodiphloroethol, fucotriphloroethol, 7-phloroeckol, phlorofucofuroeckol and bieckol/dieckol were identified. The antioxidant activity and the hyaluronidase (HAase inhibitory capacity exhibited by the extracts were also assessed. A correlation between the extracts activity and their chemical composition was established. F. spiralis, the species presenting higher molecular weight phlorotannins, generally displayed the strongest lipid peroxidation inhibitory activity (IC50 = 2.32 mg/mL dry weight and the strongest HAase inhibitory capacity (IC50 = 0.73 mg/mL dry weight. As for superoxide radical scavenging, C. nodicaulis was the most efficient species (IC50 = 0.93 mg/mL dry weight, followed by F. spiralis (IC50 = 1.30 mg/mL dry weight. These results show that purified phlorotannin extracts have potent capabilities for preventing and slowing down the skin aging process, which is mainly associated with free radical damage and with the reduction of hyaluronic acid concentration, characteristic of the process.

  16. Side-Scan-Sonar Lines for Hudson River, NY

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Side Scan Sonar and Subbottom Profiler Tracklines. Data was collected November 5 to December 15, 2009, in the estuary north from Saugerties to Troy. Fugro utilized...

  17. 27 CFR 9.47 - Hudson River Region.

    Science.gov (United States)

    2010-04-01

    ... to the New York-Pennsylvania state line in the Delaware River. (11) The boundary proceeds easterly along the Delaware River to the New York-New Jersey state line. (12) The boundary proceeds easterly... proceeds easterly along the northern side of Interstate Route 287 to the junction with N.Y. Route 15....

  18. Side-Scan-Sonar Points for Hudson River, NY

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Side Scan Point Files. These points correspond to individual pings which produced hte side-scan-sonar backscatter imagery. Sonar data were collected November 6 to...

  19. Hudson River Sub-Bottom Profile Lines_r09272010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Subbottom Profiler Tracklines. Data was collected November 5 to December 15, 2009, in the estuary north from Saugerties to Troy. Fugro utilized the GeoAcoustics...

  20. Pachydictyols B and C: New Diterpenes from Dictyota dichotoma Hudson

    Directory of Open Access Journals (Sweden)

    Hartmut Laatsch

    2013-08-01

    Full Text Available Two new diterpenoids, pachydictyol B (1a/1b and C (2, were isolated from the dichloromethane extract of the marine brown alga, Dictyota dichotoma, collected from the Red Sea coast of Egypt, along with the known metabolites, pachydictyol A (3a, dictyol E (4, cis-africanan-1α-ol (5a, fucosterol (6, tetrahydrothiophen-1,1-dioxide and poly-β-hydroxybutyric acid. GC-MS analysis of the nonpolar fractions also indicated the presence of β-bourbonene and nonanal, along with three hydrocarbons and five fatty acids or their simple derivatives, respectively. GC-MS analysis of the unsaponifiable algal petroleum ether extract revealed the presence of a further eight compounds, among them 2,2,6,7-tetramethyl-10-oxatricyclo[4.3.0.1(1,7]decan-5-one (7, N-(4-bromo-n-butyl-pipe ridin-2-one (8 and tert-hexadecanethiol. Structures 1–6 were assigned by 1D and 2D NMR, mass spectra (EI, CI, HREI and HRESI and by comparison with data from related structures. The crude algal extract was potently active against the breast carcinoma tumor cell line, MCF7 (IC50 = 0.6 µg mL−1; pachydictyol B (1a and dictyol E (4 showed weak antimicrobial properties, and the other compounds were inactive. Pachydictyols B (1a and C (2 demonstrated a weak and unselective cytotoxicity against twelve human tumor cell lines with a mean IC50 of >30.0 µM.

  1. Defining the Pen Islands Caribou Herd of southern Hudson Bay

    Directory of Open Access Journals (Sweden)

    Kenneth F. Abraham

    1998-03-01

    Full Text Available In this paper, we describe the Pen Islands Herd of caribou, the largest aggregation of caribou in Ontario (it also occupies a portion of northeastern Manitoba. Photographic counts showed the herd had a minimum population of 2300 in 1979, 4660 in 1986, 7424 in 1987 and 10 798 in 1994. Throughout the 1980s, the Pen Islands caribou exhibited population behaviour similar to migratory barren-ground caribou herds, although morphology suggests they are woodland caribou or possibly a mixture of subspecies. The herd had well-defined traditional tundra calving grounds, formed nursery groups and large mobile post-calving aggregations, and migrated over 400 km between tundra summer habitats and boreal forest winter habitats. Its migration took it into three Canadian jurisdictions (Ontario, Manitoba, Northwest Territories and it was important to residents of both Manitoba and Ontario. It is clear that the herd should be managed as a migratory herd and the critical importance of both the coastal and variable large winter ranges should be noted in ensuring the herd's habitat needs are secure.

  2. The Chemical Adventures of Sherlock Holmes: Mrs. Hudson's Golden Brooch

    Science.gov (United States)

    Shaw, Ken

    2009-01-01

    This story is a chemical mystery with an emphasis on qualitative analysis, metallurgy, and gravimetric analysis. It is, as well, yet another article in the continuing series, created by Thomas Waddell and Thomas R. Rybolt, that presents a scientific problem in mystery format in the context of the popular and beloved characters of Sherlock Holmes…

  3. The Chemical Adventures of Sherlock Holmes: Mrs. Hudson's Golden Brooch

    Science.gov (United States)

    Shaw, Ken

    2009-01-01

    This story is a chemical mystery with an emphasis on qualitative analysis, metallurgy, and gravimetric analysis. It is, as well, yet another article in the continuing series, created by Thomas Waddell and Thomas R. Rybolt, that presents a scientific problem in mystery format in the context of the popular and beloved characters of Sherlock Holmes…

  4. Composición química de los aceites esenciales de las hojas de Helicteres guazumifolia (Sterculiaceae, Piper tuberculatum (Piperaceae, Scoparia dulcis (Arecaceae y Solanum subinerme (Solanaceae, recolectadas en Sucre, Venezuela

    Directory of Open Access Journals (Sweden)

    Gabriel Ordaz

    2011-06-01

    Full Text Available Los aceites esenciales son biosintetizados por plantas aromáticas y pueden obtenerse de cualquier órgano de la misma, tienen gran aplicación en la industria farmacéutica, sanitaria, cosmética, agrícola y de alimentos. Los aceites esenciales de las hojas de las plantas Helicteres guazumifolia, Piper tuberculatum, Scoparia dulcis y Solanum subinerme fueron obtenidos mediante hidrodestilación con rendimientos de 0.004, 0.032, 0.016 y 0.005%, respectivamente. La CG/EM permitió identificar la mayoría de los constituyentes de estos aceites esenciales (88.00, 89.80, 87.50 y 89.47%, respectivamente, encontrándose en mayor proporción metabolitos no volátiles de estructura no terpenoidal en H. guazumifolia (30.28%, sesquiterpenoides oxigenados en P. tuberculatum (52.19%, sesquiterpenos en S. dulcis (26.09% y derivados oxigenados de diterpenos en S. subinerme (39.67%. Los constituyentes mayoritarios fueron el diisobutilftalato (13.11% en H. guazumifolia, (--espatulenol (11.37% en P. tuberculatum y el trans-fitol (8.29 y 36.00% para S. dulcis y S. subinerme, respectivamente. El diisooctilftalato fue el constituyente común en los aceites esenciales de todas las especies y los compuestos volátiles trans-pinano, L-linalool, β-ionona, isofitol, neofitadieno, trans-fitol, dibutilftalato y hexadecanoato de metilo, fueron detectados en tres de estas esencias. Esto sugiere que dichas plantas pueden requerir metabolitos secundarios similares para su interacción ecológica, posiblemente debido a factores ambientales comunes.

  5. Estudio comparativo de la composición química y actividad antibacteriana del aceite esencial de Ruta graveolens L. recolectada en los estados Mérida y Miranda, Venezuela.

    Directory of Open Access Journals (Sweden)

    Janne Rojas

    2011-12-01

    Full Text Available Essential oil from two R. graveolens samples collected from Mérida and Miranda states, Venezuela, were analyzed by GC/MS identifying as major components: 2-undecanone, 2-nonanonae and pregeijerene. On the other hand, the antibacterial activity assays showed the wide range of activity of the oils that inhibited the bacterial strains grow not only for the Gram positive (S. aureus and E. faecalis but the Gram negative (E. coli and K. pneumonie as well, displaying MIC values between 100 μg/mL and 200 μg/mL.

  6. Genotipificación de los genes msp1 (bloque 2) y dhfr (codón108) de Plasmodium falciparum en muestras de campo recolectadas en cuatro localidades endémicas de Colombia

    National Research Council Canada - National Science Library

    Guerra, Ángela Patricia; Knudson, Angélica; Nicholls, Rubén Santiago; Galindo, John Alexander; Ravid, Zaava; Rahirant, Sonia; Duarte, Nidia; Chaparro-Olaya, Jacqueline; Wasserman, Moisés

    2006-01-01

    Introducción. Plasmodium falciparum es un parásito altamente polimórfico, lo cual le permite evadir la respuesta inmune del hospedero, diseminar la resistencia a medicamentos y favorecer la transmisión. Objetivos...

  7. Diversity of Encyrtidae (Hymenoptera: Chalcidoidea collected with Malaise traps in the tropical dry forest of San Javier, Sonora, Mexico Diversidad de Encyrtidae (Hymenoptera: Chalcidoidea recolectada con trampas Malaise en el bosque tropical caducifolio de San Javier, Sonora, México

    Directory of Open Access Journals (Sweden)

    José Manuel Rodríguez

    2010-12-01

    Full Text Available Results of a faunistic study of the Encyrtidae family (parasitoid wasps of the tropical dry forest of San Javier, Sonora, Mexico are presented. The study was carried out from November 2003 to October 2004. Collections using Malaise trapping were made during 5 days of every month. A total of 52 species, 27 genera and 2 subfamilies were recorded. The subfamily with the largest number of recorded species was Encyrtinae, with 19 genera and 32 species, followed by Tetracneminae, with 8 genera and 20 species. The genus with the largest number of recorded species was Metaphycus with 10. Species richness was analyzed using parametric models; the best-fitting model was the Logarithmic, which is unbounded. Species had low abundance. Species richness and abundance varied with time, with the highest values recorded in the dry season. The fauna of San Javier was more similar to that of Huautla, Morelos, than to that of Huatulco, Oaxaca, both previously studied.Se presentan los resultados del estudio de la fauna de la familia Encyrtidae (avispas parasitoides en el bosque tropical caducifolio de San Javier, Sonora, México. El estudio se llevó a cabo de noviembre del 2003 a octubre del 2004. Las recolectas se realizaron durante 5 días de cada mes, el método de recolecta fue trampas Malaise. Se registró un total de 52 especies, 27 géneros y 2 subfamilias. La subfamilia con el mayor número de especies fue Encyrtinae, con 19 géneros y 32 especies, seguida por Tetracneminae con 8 géneros y 20 especies. El género con mayor número de especies fue Metaphycus con 10. El valor de la riqueza estimada de especies fue analizado usando los modelos paramétricos, el mejor fue el logarítmico, el cual es indefinido. Las especies no fueron abundantes. La riqueza y abundancia de las especies varió con el tiempo, registrándose el valor más grande durante la temporada de secas. La fauna fue más parecida a la de Huautla, Morelos que a la de Huatulco, Oaxaca, ambas previamente estudiadas.

  8. Impact of AMD on water quality in critical watershed in the Hudson River drainage basin: Phillips Mine, Hudson Highlands, New York

    Science.gov (United States)

    Gilchrist, Sivajini; Gates, Alexander; Szabo, Zoltan; Lamothe, Paul J.

    2009-03-01

    A sulfur and trace element enriched U-Th-laced tailings pile at the abandoned Phillips Mine in Garrison, New York, releases acid mine drainage (AMD, generally pH AMD evaporation during dry periods concentrates solid phase trace metals and sulfate, forming melanterite (FeSO4·7H2O) on sulfide-rich tailings surfaces. Wet periods dissolve these concentrates/precipitates, releasing stored acidity and trace metals into the CMB. Sediments along CMB are enriched in iron hydroxides which act as sinks for metals, indicating progressive sequestration that correlates with dilution and sharp rise in pH when mine water mixes with tributaries. Seasonal variations in metal concentrations were partly attributable to dissolution of the efflorescent salts with their sorbed metals and additional metals from surging acidic seepage induced by precipitation.

  9. Impact of AMD on water quality in critical watershed in the Hudson River drainage basin: Phillips Mine, Hudson Highlands, New York

    Science.gov (United States)

    Gilchrist, S.; Gates, A.; Szabo, Z.; Lamothe, P.J.

    2009-01-01

    A sulfur and trace element enriched U-Th-laced tailings pile at the abandoned Phillips Mine in Garrison, New York, releases acid mine drainage (AMD, generally pH iron hydroxides which act as sinks for metals, indicating progressive sequestration that correlates with dilution and sharp rise in pH when mine water mixes with tributaries. Seasonal variations in metal concentrations were partly attributable to dissolution of the efflorescent salts with their sorbed metals and additional metals from surging acidic seepage induced by precipitation.

  10. 77 FR 64374 - Notification of Petition for Approval; Port Authority Trans-Hudson Product Safety Plan

    Science.gov (United States)

    2012-10-19

    ... manner and meets the requirements of 49 CFR part 236, subpart H- Standards for Processor-Based Signal and... circuit is part of Alstom's Smartway Digital Track Circuit product line and will be used by PATH for...

  11. H10937: NOS Hydrographic Survey , Hudson River, New York and New Jersey, 1999-10-15

    Data.gov (United States)

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

  12. American Higher Education: Behind the Emerald City's Curtain. Hudson Briefing Paper, No. 188.

    Science.gov (United States)

    Finn, Chester E., Jr.; Manno, Bruno V.

    During the last 50 years, American higher education has steadily grown in scale, wealth, and, stature. Despite its current status as the world's education superpower, however, it has begun to encounter public disapproval and consumer resistance. Colleges and universities have been able to ignore productivity concerns because a college education…

  13. 33 CFR 207.60 - Federal Dam, Hudson River, Troy, N.Y.; pool level.

    Science.gov (United States)

    2010-07-01

    ..., N.Y.; pool level. 207.60 Section 207.60 Navigation and Navigable Waters CORPS OF ENGINEERS..., N.Y.; pool level. (a) Whenever the elevation of the pool created by the Federal dam at Troy, N.Y... automatically when the pool level rises to an elevation of +18.5 feet mean sea level, and conform in...

  14. Sea Level, Land Motion, and the Anomalous Tide at Churchill, Hudson Bay

    Science.gov (United States)

    Ray, R. D.

    2015-12-01

    The importance of the tide gauge at Churchill, Manitoba, cannot be overstated. It is the only permanently operating tide gauge in the central Canadian Arctic, and it sits on a prime spot for monitoring the mantle's rebound from the Laurentide ice loss. Yet interpretation of the sea-level time series at Churchill has long been problematic, going back even to early work by Gutenberg in the 1940s. The long-term relative sea-level rates are inconsistent: approximately -4, -19, -5 ± 1 mm/y for the periods 1940-1970, 1970-1990, 1990-2014 respectively. Annual mean high water (MHW) and mean low water (MLW) reflect these trends until around 1990, after which MLW leveled off and is now nearly unchanging. Slightly later, around 2000, the semidiurnal tides became very anomalous, with falling amplitudes and slightly increasing phase lags. The amplitude of M2 was approximately 154 cm before 2000; it dropped to about 146 cm by 2010 and reached an all-time low of 142 cm in 2014. Satellite altimeter estimates of the tide in this region, although challenging because of seasonal ice cover, show no comparable M2 changes, so the tidal changes must be localized to the near vicinity of the gauge (or to the gauge itself if caused by a malfunction). On the other hand, altimetry confirms the post-1992 Churchill measurements of mean sea level, thanks to the long time series of land motion measurements obtained at GPS station CHUR, which gives a vertical uplift of 10.1 mm/y. Combining satellite altimeter data with the Churchill tide-gauge data gives an implied vertical crustal rate of about 9.0 ± 0.8 mm/y, in reasonable agreement with the GPS. In summary, we have still anomalous MSL measurements at the Churchill gauge for the intermediate 1970-1990 era, and very anomalous tidal measurements since 2000, but we have apparently quite reliable MSL rates since 1990.

  15. Seasonal dynamics of methane emissions from a subarctic fen in the Hudson Bay Lowlands

    Directory of Open Access Journals (Sweden)

    K. L. Hanis

    2013-03-01

    Full Text Available Ecosystem-scale methane (CH4 flux (FCH4 over a subarctic fen at Churchill, Manitoba, Canada was measured to understand the magnitude of emissions during spring and fall shoulder seasons, and the growing season in relation to physical and biological conditions. FCH4 was measured using eddy covariance with a closed-path analyzer in four years (2008–2011. Cumulative measured annual FCH4 (shoulder plus growing seasons ranged from 3.0 to 9.6 g CH4 m−2 yr−1 among the four study years, with a mean of 6.5 to 7.1 g CH4 m−2 yr−1 depending upon gap-filling method. Soil temperatures to depths of 50 cm and air temperature were highly correlated with FCH4, with near surface soil temperature at 5 cm most correlated across spring, fall, and the whole season. The response of FCH4 to soil temperature at the 5 cm depth and air temperature was more than double in spring to that of fall. Emission episodes were generally not observed during spring thaw. Growing season emissions also depended upon soil and air temperatures but water table also exerted influence with FCH4 highest when water was 2–13 cm below and least when it was at or above the mean peat surface.

  16. H09546: NOS Hydrographic Survey , Vicinity of Hudson Canyon, New Jersey, 1975-07-17

    Data.gov (United States)

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

  17. Building America Case Study: Columbia County Habitat for Humanity Passive Townhomes, Hudson, New York

    Energy Technology Data Exchange (ETDEWEB)

    2016-04-01

    Columbia County (New York) Habitat for Humanity built a pair of townhomes to Passive House criteria with the purpose of exploring approaches for achieving Passive House performance and to eventually develop a prototype design for future projects. The project utilized a 2x6 frame wall with a structural insulated panel curtain wall and a ventilated attic over a sealed OSB ceiling air barrier. Mechanical systems include a single head, wall mounted ductless mini-split heat pump in each unit and a heat recovery ventilator. Costs were $26,000 per unit higher for Passive House construction compared with the same home built to ENERGY STAR version 3 specifications, representing about 18 percent of total construction cost. This report discusses the cost components, energy modeling results and lessons from construction. Two alternative ventilation systems are analyzed: a central system; and, a point-source system with small through-wall units distributed throughout the house. The report includes a design and cost analysis of these two approaches.

  18. Estimation of arboreal lichen biomass available to woodland caribou in Hudson Bay lowland black spruce sites

    Directory of Open Access Journals (Sweden)

    Sarah K. Proceviat

    2003-04-01

    Full Text Available An arboreal lichen index to be utilized in assessing woodland caribou habitat throughout northeastern Ontario was developed. The "index" was comprised of 5 classes, which differentiated arboreal lichen biomass on black spruce trees, ranging from maximal quantities of arboreal lichen (class 5 to minimal amounts of arboreal lichen (class 1. This arboreal lichen index was subsequently used to estimate the biomass of arboreal lichen available to woodland caribou on lowland black spruce sites ranging in age from 1 year to 150 years post-harvest. A total of 39 sites were assessed and significant differences in arboreal lichen biomass were found, with a positive linear relationship between arboreal lichen biomass and forest age. It is proposed that the index be utilized by government and industry as a means of assessing the suitability of lowland black spruce habitat for woodland caribou in this region.

  19. Uue teabe omandamine projekteerimisprotsessis = Capturing unknown knowledge in design / Roly Hudson

    Index Scriptorium Estoniae

    Hudson, Roly

    2011-01-01

    Artikkel uurib parameetriliste vahendite rolli tänapäeva disainipraktikas ja toob välja nende praktilised kasutegurid. Näitena kasutatakse autori enda kogemusi parameetriliste tehnikate rakendamisel sõltumatu konsultandina Aviva staadioni (avati mais 2010) kavandamisel Dublinis

  20. 77 FR 61828 - Surety Companies Acceptable on Federal Bonds; Change in Business Address: Hudson Insurance Company

    Science.gov (United States)

    2012-10-11

    ... of the Treasury, Financial Management Service, Financial Accounting and Services Division, Surety... Carrico, Director, Financial Accounting and Services Division, Financial Management Service. BILLING CODE... Company AGENCY: Financial Management Service, Fiscal Service, Department of the Treasury. ACTION:...

  1. Larvicidal activity of Mentha x villosa Hudson essential oil, rotundifolone and derivatives.

    Science.gov (United States)

    Lima, Tamires Cardoso; da Silva, Tayane Kayne Mariano; Silva, Fabiana Lima; Barbosa-Filho, José Maria; Marques, Márcia Ortiz Mayo; Santos, Roseli La Corte; Cavalcanti, Sócrates Cabral de Holanda; de Sousa, Damião Pergentino

    2014-06-01

    The aim of this study was to evaluate the larvicidal activity of Mentha x villosa essential oil (MVEO) and its major constituent, rotundifolone, against larvae of Aedes aegypti. Additionally, a set of 15 analogues of the rotundifolone were evaluated to identify the molecular characteristics which contribute to the larvicidal effect. The results from the present study showed that the MVEO exhibited outstanding toxic effects against Ae. aegypti larvae (LC50=45.0ppm). Rotundifolone exhibited reasonable larvicidal activity (LC50=62.5ppm). With respect to comparative study of rotundifolone and its analogues, all tested compounds were less potent than rotundifolone, except (-)-limonene. In general, replacement of C-C double bonds by epoxides groups decreases the larvicidal potency. The presence of α,β-unsaturated carbonyls contributes to the larvicidal toxicity. The addition of hydroxyl groups in the chemical structure resulted in less potent compounds. Furthermore, the enantioselectivity seems to play an important role for the larvicidal toxicity.

  2. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: BIRDS (Bird Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for wading birds, shorebirds, waterfowl, raptors, diving birds, passerine birds, and gulls and terns in the...

  3. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: HABITATS (Habitat Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for submerged aquatic vegetation (SAV), floating aquatic vegetation (FAV), and rare/sensitive coastal...

  4. NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: New York, Hudson River

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data were created as part of the National Oceanic and Atmospheric Administration Office for Coastal Management's efforts to create an online mapping viewer...

  5. Side-Scan_Sonar backscatter tiles for Hudson River, NY (.xtf)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Raw XTF files. Sonar data were collected November 6 to December 15, 2009, in the estuary north from Saugerties to Troy. Data Collection and Processing: The...

  6. Evaluation of the quality of ambient vibration monitoring data from the Henry Hudson Bridge

    Science.gov (United States)

    Pan, Qin; Grimmelsman, Kirk A.; Prader, John; Aktan, A. E.

    2006-03-01

    The quality of test data is an important consideration in conducting field experiments on civil infrastructure. In addition to possible errors due to the experimental setup, the uncertainties due to incomplete knowledge of a structure's behavior and its interactions with the natural environment greatly affect the reliability of the system identification results. This paper discusses the uncertainties related to ambient vibration testing of a long-span steel arch bridge and possible ways to mitigate them. The consistency of the identified parameters is examined through statistical analyses.

  7. 78 FR 31454 - Drawbridge Operation Regulation; Hudson River, Troy and Green Island, NY

    Science.gov (United States)

    2013-05-24

    ... Environmental Health Risks and Safety Risks. This rule is not an economically significant rule and would not create an environmental risk to health or risk to safety that might disproportionately affect children... seasonal recreational vessels, several tour boats and a U.S. Army Corps of Engineers vessel. The...

  8. 75 FR 38714 - Safety Zone; Macy's Fourth of July Fireworks Display, Hudson River, New York, NY

    Science.gov (United States)

    2010-07-06

    ... fireworks display. Based on accidents that have occurred in other Captain of the Port zones, and the... the Regional Small Business Regulatory Fairness Boards. The Ombudsman evaluates these actions annually...

  9. 76 FR 56469 - Notice of Inventory Completion: The University of Maine, Hudson Museum, Orono, ME

    Science.gov (United States)

    2011-09-13

    ... who have perished during modern times. The term ``Hohokam'' is an English adaptation of the word...'odham speak different dialects of the same Uto-Aztecan language. O'odham communities were historically... just the role of a great water serpent and a flood, but also the sacrifice of children in the...

  10. Helen Hudson Lecture. Positive practice change using appreciative inquiry in oncology primary care nursing.

    Science.gov (United States)

    Campbell, Colleen P

    2013-01-01

    Ambulatory oncology nurses struggle to meet the increasing demands placed on them. Increased volume of patients, more complex treatments and symptom management, an older population with multiple co-morbidities combined with fiscal and human resource restraints has created job dissatisfaction and the feeling of powerlessness in the current environment. The Appreciative Inquiry process enables nurses to become engaged in planning and creating positive change based on their knowledge, experiences and clinical expertise, as oncology professionals. Through surveys and group work, nurses in this project were able to turn theory into positive practice change, inspiring a new paradigm of primary oncology nursing. Through the promotion of innovation, we have inspired hope while advocating for our profession.

  11. 33 CFR 207.50 - Hudson River Lock at Troy, N.Y.; navigation.

    Science.gov (United States)

    2010-07-01

    ... navigating the lock or not. No one shall cause any movement of any vessel, boat, or other floating thing in... paragraph. If the traffic is crowded in both directions; up and down lockages will usually be...

  12. Uue teabe omandamine projekteerimisprotsessis = Capturing unknown knowledge in design / Roly Hudson

    Index Scriptorium Estoniae

    Hudson, Roly

    2011-01-01

    Artikkel uurib parameetriliste vahendite rolli tänapäeva disainipraktikas ja toob välja nende praktilised kasutegurid. Näitena kasutatakse autori enda kogemusi parameetriliste tehnikate rakendamisel sõltumatu konsultandina Aviva staadioni (avati mais 2010) kavandamisel Dublinis

  13. Short-term Dynamics and Retention of Triclosan in the Lower Hudson River Estuary

    Science.gov (United States)

    Triclosan (5-chloro-2-(2,4-dichlorophenoxy)-phenol) is a antimicrobial agent present in a wide array of consumer based goods such as soaps, skin creams and dental care products. Triclosan is only partially removed by most wastewater treatment processes, with the remainder being ...

  14. Bacterias diazotroficas aisladas de arroz silvestre Oryza glumaepatula en la Amazonia brasilena

    National Research Council Canada - National Science Library

    Ivan Fernandes, Paulo, Jr; Duarte Pereira, Gilmara Maria; Perin, Liamara; Mesquita da Silva, Luana; Cardoso Barauna, Alexandre; Muniz Alves, Francilene; Ribeiro Passos, Samuel; Edson Zilli, Jerri

    2013-01-01

    ... de O. glumepatula fueron recolectadas en cinco zonas boscosas y siete en Cerrado. Las plantas de Cerrado fueron recolectadas en septiembre 2008, mientras que las del bosque en Junio 2008 y Abril 2009...

  15. Antifungal, cytotoxic and chemical analyses of essential oils of Lippia origanoides H.B.K grown in Colombia Actividad antifúngica, citotó;xica y composición química de aceites esenciales de Lippia origanoides H.B.K recolectadas en Colombia

    Directory of Open Access Journals (Sweden)

    Liliana Betancur-Galvis

    2011-08-01

    Full Text Available Introduction: Aspergillus fumigatus is most commonly associated to invasive aspergillosis. Strong antifungal activity against A. fumigatus of L. origanoides essential oil gives a new added value to this natural product from Boyacá-Colombia. Aims: The increase in fungal infections, the development of resistance and toxicity of wide-spectrum antifungals have led to a constant search for therapeutic alternatives. The chemical composition, antifungal and cytotoxic activity of nine essential oils obtained from L. origanoides were evaluated and the relationship between the antifungal activities of the oil and of its major components were explored. Methods and Results: Antifungal activity was determined following the protocols AFST-EUCAST for Candida krusei and C. parapsilosis, and CLSI-M38A for Aspergillus fumigatus and A. flavus. The GC-MS analysis identified three chemotypes: thymol, carvacrol and p-cymene/trans-beta-caryophyllene. The essential oil of the thymol chemotype was the most active in antifungal assays with MIC values of 157.5, 198.4, 125 and 31 μg ml-1 against C. parapsilosis, C. krusei, A. flavus and A. fumigatus, respectively. The major components carvacrol and thymol were not active against A. fumigatus at concentrations below 157.5 μg ml-1. In general, the oils were not cytotoxic. Conclusions: The essential oil of the thymol chemotype of L. origanoides from the region of Boyacá- Colombia showed the highest antifungal activity against A. fumigatus among all the oils and major components tested. Salud UIS 2011; 43 (2: 141-148Introducción: La infección por el hongo Aspergillus fumigatus está más comúnmente asociada a la aspergilosis invasiva. La fuerte actividad antimicótica del aceite esencial de L. origanoides contra A. fumigatus ha dado un nuevo valor agregado a este producto natural de Boyacá-Colombia. Objetivo: El aumento de las infecciones por hongos, el desarrollo de la resistencia y la toxicidad de los antifúngicos de amplio espectro han llevado a una constante búsqueda de alternativas terapéuticas. En este estudio fueron evaluados la composición química, la actividad antifúngica y citotóxica de nueve aceites esenciales obtenidos de L. origanoides; y la relación entre la actividad antifúngica de los aceites con respecto a la presencia de sus principales componentes. Métodos y Resultados: La actividad antifúngica se determinó siguiendo los protocolos AFST-EUCAST para Candida krusei y C. parapsilosis; y CLSI M38A para Aspergillus fumigatus y A. flavus. El análisis por GC-MS identificó tres quimiotipos: carvacrol timol y p-cymene/trans-beta-caryophyllene. El aceite esencial del quimiotipo timol fue el más activo en los ensayos antifúngicos con valores de MIC de 157,5, 198,4, 125 y 31 mg ml-1 frente a C. parapsilosis, C. krusei, A. flavus y A. fumigatus, respectivamente. El carvacrol y el timol, los principales componentes, no fueron activos frente a A. fumigatus en concentraciones inferiores a 157,5 g / ml-1. En general, los aceites no fueron citotóxicos. Conclusiones: El aceite esencial de L origanoides, quimiotipo timol, de la región de Boyacá-Colombia presentó la mayor actividad antifúngica frente a A. fumigatus entre todos los aceites evaluados; igualmente, sus principales componentes fueron los más activos en comparación a los otros quimiotipos. Salud UIS 2011; 43 (2: 141-148

  16. 75 FR 25794 - Regulated Navigation Area: Red Bull Air Race World Championship, Upper New York Bay, Lower Hudson...

    Science.gov (United States)

    2010-05-10

    ... Gates'' that will be strategically placed in the water to form the race course. The event organizer will... will issue maritime advisories widely available to users of the waterway. If you think that your... think it qualifies and how and to what degree this rule would economically affect it. Assistance...

  17. Avoidance of Pile-Driving Noise by Hudson River Sturgeon During Construction of the New NY Bridge at Tappan Zee.

    Science.gov (United States)

    Krebs, Justin; Jacobs, Fred; Popper, Arthur N

    2016-01-01

    Sturgeon movements were monitored during a pile-driving operation. Fewer sturgeon were detected during pile driving and remained for a shorter time than during silent control periods. Moreover, the short time spent by sturgeon near pile driving suggests that they were unlikely to have reached the criterion of 187 dB re 1 μPa(2)·s cumulative sound exposure level. These results suggest that sturgeon are likely to avoid impact pile driving and not remain long enough to experience physiological effects, thus providing empirical evidence that the 206 dB re 1 μPa peak sound pressure level is the appropriate criterion for assessing the impacts of pile-driving noise on sturgeon.

  18. Source and Fate of Inorganic Soil Contamination Around the Abandoned Phillips Sulfide Mine Hudson Highlands New York

    Energy Technology Data Exchange (ETDEWEB)

    S Gilchrist; A Gates; E Elzinga; M Gorring; z Szabo

    2011-12-31

    The abandoned Phillips sulfide mine in the critical Highlands watershed in New York has been shown to produce strongly acidic mine drainage (AMD) with anomalous metal contaminants in first-order streams that exceeded local water standards by up to several orders of magnitude (Gilchrist et al., 2009). The metal-sulfide-rich tailings also produce contaminated soils with pH < 4, organic matter < 2.5% and trace metals sequestered in soil oxides. A geochemical transect to test worst-case soil contamination showed that Cr, Co and Ni correlated positively with Mn, (r = 0.72, r = 0.89, r = 0.80, respectively), suggesting Mn-oxide sequestration and that Cu and Pb correlated with Fe (r = 0.76, r = 0.83, respectively), suggesting sequestration in goethite. Ubiquitous, yellow coating on the mine wastes, including jarosite and goethite, is a carrier of the metals. Geochemical and {mu}-SXRF analyses determined Cu to be the major soil contaminant, {mu}-SXRF also demonstrated that the heterogeneous nature of the soil chemistry at the micro-meter scale is self-similar to those in the bulk soil samples. Generally metals decreased, with some fluctuations, rapidly downslope through suspension of fines and dissolution in AMD leaving the area of substantial contamination << 0.5 km from the source.

  19. 2010 NOAA Ortho-rectified Near-infrared Mosaic of Hudson River to Lake Champlain, New York

    Data.gov (United States)

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

  20. Simulating the Effects of Sea Level Rise on the Resilience and Migration of Tidal Wetlands along the Hudson River

    OpenAIRE

    Tabak, Nava M.; Magdeline Laba; Sacha Spector

    2016-01-01

    Sea Level Rise (SLR) caused by climate change is impacting coastal wetlands around the globe. Due to their distinctive biophysical characteristics and unique plant communities, freshwater tidal wetlands are expected to exhibit a different response to SLR as compared with the better studied salt marshes. In this study we employed the Sea Level Affecting Marshes Model (SLAMM), which simulates regional- or local-scale changes in tidal wetland habitats in response to SLR, and adapted it for appli...

  1. Genetic structure in populations of an ancient woodland sedge, carex sylvatica Hudson, at a regional and local scale.

    NARCIS (Netherlands)

    Arens, P.F.P.; Bijlsma, R.J.; Westende, van 't W.P.C.; Os, van B.; Smulders, M.J.M.; Vosman, B.J.

    2005-01-01

    Wood sedge (Carex sylvatica) is a well-known ancient woodland species with a long-term persistent seed bank and a caespitose growth habit. All thirteen isolated Carex sylvatica populations in the Dutch Rhine floodplain (including the river branches Waal and IJssel) were mapped in detail and analysed

  2. Genetic structure in populations of an ancient woodland sedge, Carex sylvatica Hudson, at a regional and local scale.

    Science.gov (United States)

    Arens, P; Bijlsma, R-J; van't Westende, W; van Os, B; Smulders, M J M; Vosman, B

    2005-07-01

    Wood sedge (Carex sylvatica) is a well-known ancient woodland species with a long-term persistent seed bank and a caespitose growth habit. All thirteen isolated Carex sylvatica populations in the Dutch Rhine floodplain (including the river branches Waal and IJssel) were mapped in detail and analysed for genetic variation at a large number of AFLP loci and one microsatellite locus. Across all populations, only 40 % of the sampled individuals (n=216) represented a unique genotype. A high number of the studied patches (spatial clusters of tussocks, 2-10 m in diameter) within populations contained only one or a few genotypes. Identical plants (tussocks) were also found 20-500 m apart and in one case even 1000 m apart. Observed heterozygosity levels (H(O)=0.029) were low, indicating low levels of gene flow, which is in agreement with the selfing nature of other caespitose sedges. Although the number of genotypes in populations is low, these genotypes are genetically very distinct and variation within populations accounted for 55% of the total variation. The absence of a correlation between genetic and geographic distances among populations, and the scattered distribution of genotypes among patches within woodlands, support our hypothesis of rare establishments and subsequent local dispersal within woodlands in this forest floor species, which may benefit from and partly depend on human land use and forest management activities.

  3. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Hudson River: SOCECON (Socioeconomic Resource Points and Lines)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains human-use resource data for marinas, boat ramps, locks and dams, water intake sites, archaeological sites, U.S. Coast Guard stations,...

  4. 78 FR 20559 - Safety Zones; Swim Events in the Captain of the Port New York Zone; Hudson River, East River...

    Science.gov (United States)

    2013-04-05

    ... River between North Cove Marina, New York, NY and Sandy Hook, NJ. The proposed regulation would prevent... be on shore and will communicate with vessels via VHF-FM radio or loudhailer. In addition, members of...

  5. Complete Genome Sequences of Nine Enterovirus D68 Strains from Patients of the Lower Hudson Valley, New York, 2016

    Science.gov (United States)

    Huang, Weihua; Yin, Changhong; Zhuge, Jian; Farooq, Taliya; Yoon, Esther C.; Nolan, Sheila M.; Chen, Donald; Fallon, John T.

    2016-01-01

    Complete genome sequences of nine enterovirus D68 (EV-D68) strains from patients in New York were obtained in 2016 by metagenomic next-generation sequencing. Comparative genomic analysis suggests that a new subclade B3, with ~4.5% nucleotide divergence from subclade B1 strains causing the 2014 outbreak, is circulating in the United States in 2016. PMID:27979945

  6. Source and fate of inorganic soil contamination around the abandoned Phillips sulfide mine, hudson Highlands, New York

    Science.gov (United States)

    Gilchrist, S.; Gates, A.; Elzinga, E.; Gorring, M.; Szabo, Z.

    2011-01-01

    The abandoned Phillips sulfide mine in the critical Highlands watershed in New York has been shown to produce strongly acidic mine drainage (AMD) with anomalous metal contaminants in first-order streams that exceeded local water standards by up to several orders of magnitude (Gilchrist et al., 2009). The metal-sulfide-rich tailings also produce contaminated soils with pH soil oxides. A geochemical transect to test worst-case soil contamination showed that Cr, Co and Ni correlated positively with Mn, (r = 0.72, r= 0.89, r = 0.80, respectively), suggesting Mn-oxide sequestration and that Cu and Pb correlated with Fe (r = 0.76, r = 0.83, respectively), suggesting sequestration in goethite. Ubiquitous, yellow coating on the mine wastes, including jarosite and goethite, is a carrier of the metals. Geochemical and μ-SXRF analyses determined Cu to be the major soil contaminant. μ-SXRF also demonstrated that the heterogeneous nature of the soil chemistry at the micro-meter scale is self-similar to those in the bulk soil samples. Generally metals decreased, with some fluctuations, rapidly downslope through suspension of fines and dissolution in AMD leaving the area of substantial contamination << 0.5 km from the source.

  7. 75 FR 29805 - CSX Transportation, Inc. and Delaware and Hudson Railway Company, Inc.-Joint Use Agreement

    Science.gov (United States)

    2010-05-27

    ... cars. D&H would also handle traffic beyond Rouses Point, to and from the Montreal terminal area, thus... ``nonattainment'' with the National Ambient Air Quality Standards established under the Clean Air Act, 42 U.S.C... either the quality of the human environment or the conservation of energy resources. It is ordered: 1...

  8. Carencia de agua y sus implicaciones en las practicas alimentarias, en Turbo, Antioquia

    National Research Council Canada - National Science Library

    Rodriguez-Villamil, Natalia; Restrepo-Mesa, Sandra; Zambrano-Bejarano, Ingri

    2013-01-01

    Metodos Investigacion cualitativa abordada desde la etnografia enfocada. La informacion fue recolectada mediante entrevistas a habitantes de barrios informales y observacion de actividades relacionadas con el agua...

  9. National Program for Inspection of Non-Federal Dams. Dufresne Dam (VT 00144) Upper Hudson River Basin, Manchester, Vermont. Phase I Inspection Report.

    Science.gov (United States)

    1979-01-01

    operator. This dam is maintained and operated by the State of Vermont Fish and Game Department. The State’s Dam Safety Engineer is Mr. A. Peter Barranco , Jr...P.E. Mr. Barranco is located at the Agency of Environmental I Conservation, Department of Water Resources, Water Quality Division, Montpelier...Stan Mfazur, HNTB 7. I 3. Dan LaGatta, GEI 8. 4. J. Peter Barranco , Jr. -Vermont Dept. 9. of Water Resources- 5

  10. Changes in composition, structure and aboveground biomass over seventy-six years (1930-2006) in the Black Rock Forest, Hudson Highlands, southeastern New York State.

    Science.gov (United States)

    Schuster, W S F; Griffin, K L; Roth, H; Turnbull, M H; Whitehead, D; Tissue, D T

    2008-04-01

    We sought to quantify changes in tree species composition, forest structure and aboveground forest biomass (AGB) over 76 years (1930-2006) in the deciduous Black Rock Forest in southeastern New York, USA. We used data from periodic forest inventories, published floras and a set of eight long-term plots, along with species-specific allometric equations to estimate AGB and carbon content. Between the early 1930s and 2000, three species were extirpated from the forest (American elm (Ulmus americana L.), paper birch (Betula papyrifera Marsh.) and black spruce (Picea mariana (nigra) (Mill.) BSP)) and seven species invaded the forest (non-natives tree-of-heaven (Ailanthus altissima (Mill.) Swingle) and white poplar (Populus alba L.) and native, generally southerly distributed, southern catalpa (Catalpa bignonioides Walt.), cockspur hawthorn (Crataegus crus-galli L.), red mulberry (Morus rubra L.), eastern cottonwood (Populus deltoides Bartr.) and slippery elm (Ulmus rubra Muhl.)). Forest canopy was dominated by red oak and chestnut oak, but the understory tree community changed substantially from mixed oak-maple to red maple-black birch. Density decreased from an average of 1500 to 735 trees ha(-1), whereas basal area doubled from less than 15 m(2) ha(-1) to almost 30 m(2) ha(-1) by 2000. Forest-wide mean AGB from inventory data increased from about 71 Mg ha(-1) in 1930 to about 145 Mg ha(-1) in 1985, and mean AGB on the long-term plots increased from 75 Mg ha(-1) in 1936 to 218 Mg ha(-1) in 1998. Over 76 years, red oak (Quercus rubra L.) canopy trees stored carbon at about twice the rate of similar-sized canopy trees of other species. However, there has been a significant loss of live tree biomass as a result of canopy tree mortality since 1999. Important constraints on long-term biomass increment have included insect outbreaks and droughts.

  11. Mechanisms of inorganic carbon acquisition in two estuarine Rhodophyceans: Bostrychia scorpioides (Hudson) ex Kützing Montagne and Catenella caespitosa (Withering) L. M. Irvine.

    Science.gov (United States)

    Ruiz-Nieto, Miriam; Fernández, José A; Niell, F Xavier; Carmona, Raquel

    2014-09-01

    Marine macroalgae possess a range of mechanisms to increase the availability of CO2 for fixation by ribulose-1,5-bisphosphate carboxylase/oxygenase. Of these, possession of a periplasmic or external carbonic anhydrase and the ability to use bicarbonate ions is widely distributed. The mechanisms of carbon acquisition were studied in two estuarine red macroalgae Bostrychia scorpioides and Catenella caespitosa using a range of techniques. pH-drift and CO2-depletion experiments at constant pH suggested that CO2 is the main source of inorganic carbon in both species. Inhibitors indicated that internal and external carbonic anhydrase were present in both species. Inhibitors also suggested that uptake of bicarbonate is unlikely to be present (P < 0.05).

  12. National Dam Safety Program. Honk Falls Dam (Inventory Number N.Y. 73), Lower Hudson River Basin, Ulster County, New York. Phase I Inspection Report,

    Science.gov (United States)

    1981-08-14

    release; Distribucion uniatea. 17. O!STR13UTION STATEMENT (01:11% abstract wnerod Ia Block 20, If different from Report) 4 IS. SUPPLEEMT ARY NOTES- is...WARNING SYSTEM 11 4.4 EVALUATION 11 5 HYDRAUL IC/HYDROLOGIC 13 5.1 DRAINAGE AREA CHARACTERISTICS 13 5.2 ANALYSIS CRITERIA 13 5.3 SPILLWAY CAPACITY 13 5.4...Determine the source of and repair the area of seepage at the soil-concrete contact along the right wall. 3. Determine the source of and repair the

  13. National Dam Safety Program. Lake Wanda Dam (NJ00510), Hudson River Basin, Tributary to Wawayanda Creek, Sussex County, New Jersey. Phase 1 Inspection Report.

    Science.gov (United States)

    1980-03-01

    Cheke SQUARES 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 1/4 IN. SCALE 1 3 4 4= 2. P7 1,, 5PilW/V 9 10 12 13...191, ~ C! . .. .. C.C C C L. C . C W .C . . . .C .C . . . .C .C . . . . .C . C . C C. . C . C 4 4 . . . a CC aa acca a aa aa C C...4-9 - ---- 4. 4. CY C..L Q Z i m )4 %C .m 0 n o.C..Q J r o )%.? %c l r4 - a C. C’ C~~ C) C- C. C. CC - --- 04--. N Nl N% NY N N N N P7 ")7 F )7,F .F C

  14. National Dam Safety Program. Lake Windsor Dam (NJ-00034), Hudson River Basin, Tributary Papakating Creek, Sussex County, New Jersey. Phase I Inspection Report.

    Science.gov (United States)

    1981-03-01

    Potential." Visual inspection of the downstream area shows that breach of the dam would cause little damage to downstream residences which are...Le Novo( ~OIP o. a p" ,,_ _,_ o= (T ]l,4oo7/-2 4; J r ./0 /000 , By~ DATE1’V2.3Z oe -No. Igo JO CKD A~ DATE ____________SHEETNOOF LANGAN ENGINEERING...JOB NO. 4AZY , CKD -" - DATE3,tl/& SHEET NOJ.. OF. 10~ NN r Q ~Zf) A)i~ JO N O. .. ey WA... DATE JOBL " - ""~ HE NO. oJ2. loo ’.4 ~ye 41P~4~’ S

  15. BIOENERGETICS-BASED MODELING OF INDIVIDUAL PCB CONGENERS IN NESTLING TREE SWALLOWS FROM TWO CONTAMINATED SITES ON THE UPPER HUDSON RIVER, NEW YORK

    Science.gov (United States)

    Together, these two papers establish a quantitative linkage between PCB concentrations in nestling tree swallows and in the insects that they consume. As such, these papers provide strong support for the use of nestling swallows as a biomonitoring species for exposure assessment...

  16. 2011 - 2012 New York State Department of Environmental Conservation (NYSDEC) Lidar: Coastal New York (Long Island and along the Hudson River)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Light Detection and Ranging (LiDAR) data is remotely sensed high-resolution elevation data collected by an airborne collection platform. This LiDAR dataset is a...

  17. National Dam Inspection Program. Bradley Lake Dam (Inventory NY 00755). Lower Hudson River Basin. City of Troy Rensselaer County, New York. Phase I Inspection Report,

    Science.gov (United States)

    1981-07-01

    There is seepage into the con- duit upstream of the dam crest and stalactites of calcium carbonate hang from the crown of the conduit (see Photo A-9B...for Additional Investigations The following investigations should be performed by a registered professional engineer qualified by training and... training and exper- ience in the design of dams. Assistance by such an engineer may also be useful for some of the other work. a. Complete

  18. Operations MANDREL and GROMMET Events MINUTE STEAK, DIESEL TRAIN, DIANA MIST, MINT LEAF, HUDSON MOON, DIAGONAL LINE, and MISTY NORTH, 12 September 1969 to 2 May 1972

    Science.gov (United States)

    1987-01-30

    weapons effects testing and seismic detection research responsi- bilities (VELA UNIFORM) for the Director, DASA. This organiza- tion maintained...1972), on aspects of containment, seismic shock, possible radiation releases, weather, and area control plans pertinent to that particular test...Associates and Hanford Cutie Pie Survey Meter (beta and gamma) - Technical Associates Juno Survey Meter (alpha, beta, and gamma) - Precision

  19. From Social Engineering to Social Movement: power sharing in community change in New York’s Hudson Valley and Catskill Mountains

    NARCIS (Netherlands)

    M.A. Everett

    2006-01-01

    textabstractSustainable economic development at the local level could be a common ground for citizens and a arena for effective civic innovation across the United States. To realize this potential, local economic and political institutions must shift approaches from "social engineering" to "social M

  20. Landscape Risk Factors for Lyme Disease in the Eastern Broadleaf Forest Province of the Hudson River Valley and the Effect of Explanatory Data Classification Resolution

    Science.gov (United States)

    This study assessed how landcover classification affects associations between landscape characteristics and Lyme disease rate. Landscape variables were derived from the National Land Cover Database (NLCD), including native classes (e.g., deciduous forest, developed low intensity)...

  1. A retrospective streamflow ensemble forecast for an extreme hydrologic event: a case study of Hurricane Irene and on the Hudson River basin

    National Research Council Canada - National Science Library

    Saleh, Firas; Ramaswamy, Venkatsundar; Georgas, Nickitas; Blumberg, Alan F; Pullen, Julie

    2016-01-01

      This paper investigates the uncertainties in hourly streamflow ensemble forecasts for an extreme hydrological event using a hydrological model forced with short-range ensemble weather prediction models...

  2. National Dam Safety Program. Fresh Air Fund Dam Number 2 (Inventory Number NY726), Hudson River Basin, Dutchess County, New York. Phase I Inspection Report,

    Science.gov (United States)

    1980-09-12

    WORK UNIT NUMBERS COI rkL FFC A,, N ADDRESS 12. REPORT OATE of Enironmntal12 September 1980 Cosrain 5 ofRoad 13. NUMBER OF PAGES 14. ONIORIG AENC NAE ...General3 t-.- Cudu U U 6 b. Condition of Sce’-vicc Spillway ~4c4ztle td AIo eled-ice. JI. 4/’otn4 pI4e o c Cdetc+ n-Al7- see7 /Iced ~6~,ITte’ep or...oe( rIoc e~ td -6 -fhe. idt eui 1tJervfc se _______ I , i_ __ __ *1 ,I I :, I. | . - c. Condition of Auxiliary Spillway !, . fldt_ L L And4. fres

  3. National Dam Safety Program. Palmer Falls Dam, Upper Hudson River Basin, Saratoga and Warren Counties, New York. Phase I Inspection Report,

    Science.gov (United States)

    1980-08-23

    tnt’a1 11C~ td of .( ~ ~ ~ kta" I;ic !--I ti~~n t -V ’ ~fondtt iz, diintly. itt-tlfled tina ifva:j n~d~d~n~~’~tCt. nt Oe C’l.t 3AZe* * Wt.*C illit’I It...TEL 315,797-S00 ROJECT NAE ~~M~-_~ DATE_____ SUBJ’CT PNOJECT NO. DRAWN mY •-1 - s- to Lu, V-= ) tAO* -A.So C. -- v .1A. Lu~ fC r * ~~~AKRS TRUST

  4. National Dam Safety Program. Altamont Main Reservoir Dam (Inventory Number N.Y. 126), Lower Hudson River Basin, Albany County, New York. Phase I Inspection Report,

    Science.gov (United States)

    1981-08-05

    the 8 inch castiron pipe to the Village of Altamont. Flow to the 8 inch pipe is controlled by 3-8 inch valves located in the gate house at the upstream...15 6’ - I0 22 51.00 16 DA L t~r4~enPRM 5S &n 0 - it ,- " * - *~ eV~l * 4c~ 4 * ~ cu 4.: 41 t" cc w) C3~. 4 W 0 In *j a, i "St X .- Iv *SIs 4- *wr *l

  5. National Dam Safety Program. Beaver Dam Lake (Inventory Number N.Y. 619) , Hudson River Basin, Orange County, New York. Phase I Inspection Report

    Science.gov (United States)

    1980-09-11

    Beyond Too AT AQF i~ ToS, A 5~eCPAC QMDT, ,5Arurawab AReA AUur 40o c’. e. Abutments - Embankinent Contact At1L lMi UT - M L IP? Coj-j4 WALL 1 1 Crosio n...34f ",’ j CC 9) S tr11, A M Y~) ’L-~A( al. Coic rete Su pf ac es _’/T P21CI ,k i, ,jb 7/Al A/) (Iap(𔃺,07 pT,,/ A /AI1fPAC-iI6S ANT’ 100 4Z 7PJA

  6. Past and Future Climatic Conditions in the Hudson Bay Lowland near Churchill, Manitoba and Implications for the Fate of Shallow Water Bodies

    Science.gov (United States)

    Macrae, M. L.; Duguay, C. R.; Brown, L.; Svacina, N. A.; Parrott, J. A.

    2010-12-01

    Recent ground-based and remote sensing observations have shown a general decreasing trend in arctic lake/pond surface area over the past 50 years, suggesting that small water bodies at high latitudes are drying. This study aims to answer three key questions regarding the water balance of subarctic ponds to climate change from the second half of the 20th century to the end of the 21st century: 1) Have there been changes in precipitation quantity and distribution, annual and seasonal air temperature, and the duration of the ice-free season in the 1943-2008 observational period?; 2) Are these trends expected to continue until the end of the 21st century based on regional climate model (RCM) scenarios?; and 3) What are the implications of climate change for pond sustainability in the Churchill region? Climatic change and changes to pond hydrologic storage over the past 65 years were examined using a combination of field methods/instrumental records and modelling. Results show that annual precipitation has increased by 25% over the past 65 years. Annual rainfall during the period has increased by 50%, while annual snowfall has decreased by 17%, suggesting that snowfall is being replaced by rainfall in this region. Much of the increased annual rainfall has been observed in the months of August and September, where rainfall has increased by 60% and 88%, respectively. Mean annual air temperature has increased by approximately 1C between 1943-2008. Significant (p0.05). A comparison of modelled and observed precipitation and air temperature between 1961-2008 produced similar trends. The Canadian RCM projections indicate that both precipitation and air temperature will continue to increase for the remainder of the 21st century. Trends observed over the past 65 years and simulations of future scenarios show that rainfall is increasing at a faster rate than evaporation, causing a lessening of the summer moisture deficit that persists in this region. Consequently, conditions are becoming more wet and ponds do not appear to be at increased risk for drying. This has strong implications for pond hydrologic storage, growth and connectivity in this region.

  7. 2011 - 2012 New York State Department of Environmental Conservation (NYSDEC) Lidar: Coastal New York (Long Island and along the Hudson River)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Light Detection and Ranging (LiDAR) data is remotely sensed high-resolution elevation data collected by an airborne collection platform. This LiDAR dataset is a...

  8. National Dam Safety Program. Lake Carmel Dam (Inventory Number N.Y. 100), Lower Hudson River Basin, Putnam County, New York. Phase I Inspection Report,

    Science.gov (United States)

    1981-08-13

    proposed dam will rest is (clay, sand, gravel, boulders, granite, shale , slate, limestone, etc.) .. ... . A . --m..--tr ......composing the-right.bank 13...clay, sand, gravel, boulders, S granite, shale , sl.te, lim estone, etc...Civil En.,inoor JEPui .Lf... E-wigs CARNiI 5.3312 SumoIVIGION PLANNING SANITATION DAM DESIGN CONST’RUCTION ROY BURGESS 5eaLIFICATION4a PRFESIONAL BLDG

  9. Optimized and standardized isolation and structural characterization of anti-inflammatory sulfated polysaccharides from the red alga Delesseria sanguinea (Hudson) Lamouroux (Ceramiales, Delesseriaceae).

    Science.gov (United States)

    Grünewald, Niels; Alban, Susanne

    2009-11-09

    The red seaweed Delesseria sanguinea dominantly populates a large artificial reef in the southwestern Baltic Sea. It contains sulfated polysaccharides (SPs), which exhibit a pharmacological profile indicating anti-inflammatory and anti-skin aging potencies. To establish and optimize an extraction procedure for these SPs and to evaluate the influence of several parameters on their quality, 23 algae batches were harvested over the period of four years and extracted by different methods, resulting in 56 SP batches. Extraction with water at 85 degrees C proved to be superior and led to highly reproducible products with average yields of 11.6 +/- 3.9%, reaching 18% in spring. Their quality was independent of generation form and vitality of the algae. The SPs were identified as sulfated branched xylogalactans (degree of sulfation 0.50 +/- 0.08, mean M(r) 142000). The coextraction of floridean starch turned out to be the only parameter causing any seasonal variability. However, by using water, this concerns solely the yields of the isolated products. Compared to NaOH extracts, the antielastase activity of H(2)O extracted SPs was about twice as strong (IC(50) 0.204 +/- 0.024 microg/mL) and the batch to batch variability was much lower (CV 11.8 vs 28.6%). In conclusion, SPs from Delesseria sanguinea can be isolated in reproducibly high quality by using a specific extraction procedure. Thus, an important prerequisite for a potential economical utilization is fulfilled.

  10. Settler Colony on the Hudson: What History and Theory Tell Us about the Education Crisis in East Ramapo Central School District, New York

    Science.gov (United States)

    Justice, Benjamin

    2016-01-01

    Scholars typically frame the subgroup problem in education in terms of protecting religious minorities from majoritarian encroachment. This essay explores a different aspect of the subgroup problem: what happens when an antidemocratic religious minority becomes a local majority responsible for the promotion of the public good? This essay uses the…

  11. The Long History of Old Age The Long History of Old Age Thane Pat Thames & Hudson £25 320 0 500 25126 6 0500251266 [Formula: see text].

    Science.gov (United States)

    2006-01-01

    This book provides an absorbing overview of 'old age', charting the history of ageing within society. It aims to right the misconceptions of ageing throughout history by writing about topics that have been 'for too long surrounded by taboo' and by challenging some of the misconceptions associated with getting older.

  12. National Dam Safety Program. Watervliet Lower Dam (Inventory Number N.Y. 1357), Lower Hudson River Basin, Albany County, New York. Phase I Inspection Report,

    Science.gov (United States)

    1981-07-29

    26 Fedaeral Plaza New Yoff, District, CofF ; New York, New York 10287 -" -1-. Mo 0-I’O ,j - - NlA,4i .- AOD. -S IS dJi,,,* ! f, C:nte~irln. Of.) -13...tJUIP-.~. e- n. Intake Structures iI o. Stability 0 .j. p. Miscellaneous 93-15-3(9/80) 10) Appurtenant Structures (Power House , Lock, Gatehouse, Other) a

  13. National Dam Safety Program. Potake Lake Dam (Inventory Number N.Y. 970), Passaic River Basin, Lower Hudson River Area, Rockland County, New York. Phase I Inspection Report,

    Science.gov (United States)

    1981-08-14

    Highlands are characterized by strong topo- graphic linearity in which the majority of the ridges and valleys follow the northwest-southwest strike of the...I I POTAKE -N- ~- POND DAM DeSe 4 - 0 .4 u 4e S / /4 ~ ~ i~ ;3Mi -N. ,f c ,,--POAK PO DAM’ -ce - a-6 ~ - ~~-T- - ’e,-- ~~~ TRONEDM .7-L[(74 . ’V Shppr

  14. NOAA Digital Oblique Imagery Collection for the Coasts of Main/New Hampshire, Massachusetts/Rhode Island/Connecticut, and Hudson River/Long Island /NY/NJ

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Project: NOAA Digital Orthophotography and Ancillary Oblique Imagery Collection for the Coasts of Main/New Hampshire, Massachusetts/Rhode Island/Connecticut, and...

  15. National Dam Safety Program. Tomhannock Spillway Dam (Inventory Number N.Y. 117), Upper Hudson River Basin, Rensselaer County, New York. Phase I Inspection Report,

    Science.gov (United States)

    1981-08-01

    b> Vr &V, -%Mae,. Of- /9&7 -DA F 7-B I I I I-- I I I |- r •i APPENDIX C jIYDROLOGIC/HYDRAULIC, ENGINEERING DATA AND COMPUTATIONS I DRAINAGE BASIN I I...a, oth "oonP ith W th - ltweed the two spillways in A medite tepearetakn tout han~lyin hat iht ?eant of concrfte. ft bs believed edt ttpsaattke of

  16. High mortality of Zostera marina under high temperature regimes but minor effects of the invasive macroalgae Gracilaria vermiculophylla

    DEFF Research Database (Denmark)

    Höffle, Hannes; Thomsen, M.S.; Holmer, M.

    2011-01-01

    The present study tested for density-dependent effects of the invasive drift macroalgae Gracilaria vermiculophylla (Ohmi) Papenfuss on growth and survival of the native eelgrass, Zostera marina L., under different temperature levels. Three weeks laboratory experiments were conducted in Odense...... elongation rates being negatively affected, while the leaf plastochrone interval increased. Relative growth rate was significantly higher at 21 C than at 18 C or 27 C, whereas rhizome elongation was significantly lowest at 27 C. Elemental sulphur content in the plant tissues increased significantly...

  17. HUDSONAR (CW2014, EK60)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — HUDSONAR is a bioacoustic survey of the Hudson River Estuary being conducted aboard the Hudson River Sloop Clearwater by the Acoustic Laboratory for Ecology Studies...

  18. HUDSONAR (CW2013, EK60)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — HUDSONAR is a bioacoustic survey of the Hudson River Estuary being conducted aboard the Hudson River Sloop Clearwater by the Acoustic Laboratory for Ecology Studies...

  19. HUNDSONAR (CW2015, ES60)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — HUDSONAR is a bioacoustic survey of the Hudson River Estuary being conducted aboard the Hudson River Sloop Clearwater by the Acoustic Laboratory for Ecology Studies...

  20. NOAA Digital Orthophotography and Ancillary Oblique Imagery Collection for the Coasts of Main/New Hampshire, Massachusetts/Rhode Island/Connecticut, and Hudson River/Long Island /NY/NJ

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Project: NOAA Digital Orthophotography and Ancillary Oblique Imagery Collection for the Coasts of Main/New Hampshire, Massachusetts/Rhode Island/Connecticut, and...

  1. Prevalence of Borrelia burgdorferi (Spirochaetales: Spirochaetaceae), Anaplasma phagocytophilum (Rickettsiales: Anaplasmataceae), and Babesia microti (Piroplasmida: Babesiidae) in Ixodes scapularis (Acari: Ixodidae) collected from recreational lands in the Hudson Valley Region, New York State.

    Science.gov (United States)

    Prusinski, M A; Kokas, J E; Hukey, K T; Kogut, S J; Lee, J; Backenson, P B

    2014-01-01

    ABSTRACT Blacklegged ticks, Ixodes scapularis Say, were collected from 27 sites in eight New York State counties from 2003 to 2006 to determine the prevalence and distribution of tick-borne pathogens in public-use areas over a 4-yr period. In total, 11,204 I. scapularis (3,300 nymphs and 7,904 adults) were individually analyzed using polymerase chain reaction to detect the presence of Borrelia burgdorferi (causative agent of Lyme disease), Anaplasma phagocytophilum (formerly Ehrlichia phagocytophila, causative agent of human granulocytic anaplasmosis), and Babesia microti (causative agent of human babesiosis). Overall prevalence of B. burgdorferi, A. phagocytophilum, and B. microti was 14.4, 6.5, and 2.7% in nymphs and 45.7, 12.3, and 2.5% in adult ticks, respectively. Rates varied geographically and temporally during the time period examined, and were related to measurements of tick density. Average rate ofpolymicrobial infection for nymphs and adults, respectively, was 1.5 and 8.5% overall, with 0.5 and 6.3% coinfection of B. burgdorferi and A. phagocytophilum, 1.0 and 1.5% B. burgdorferi and B. microti, and 0.05 and 0.6% A. phagocytophilum and B. microti. Thirty-three individual adult ticks from seven study sites in Westchester, Putnam, Dutchess, and Rockland counties tested positive for simultaneous infection with all three agents by multiplex polymerase chain reaction assay.

  2. North Atlantic Environmental Sensitivity Index (ESI) Massachusetts (2001), Delaware Bay (1996), New Hampshire (2004), Hudson River (2006), and Rhode Island, Connecticut, NY/NJ Metro Area (2001) maps and geographic information systems data (NODC Accession 0020555)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These ESI data were collected, mapped, and digitized to provide environmental data for oil spill planning and response. The Clean Water Act with amendments by the...

  3. Comparative Didactics: A Reconstructive Move from Subject Didactics. Paper presented in the WERA Symposium "Transnational Research on Didactics - Learning and Teaching", coordinated by B. Hudson. European Congress on Educational Research, 8-11 sept 2015, Corvinus University, Hungary.

    OpenAIRE

    Ligozat, Florence

    2015-01-01

    In the history of the modern school systems in Europe, the development of the didactiques des disciplines (subject didactics) originates in 1) the building of “disciplines” (school subjects) as social organisations aimed at producing and diffusing knowledge and 2) the empowerment of the secondary school teachers through professional associations (Schneuwly, 2011). Subject didactics were thus born as practices of teaching a given discipline and attempts of theorising such practices. Against th...

  4. Turbidity, SOLAR RADIATION - ATMOSPHERIC and other data from HUDSON and KNORR in the Norwegian Sea, North Atlantic Ocean and South Atlantic Ocean from 1982-02-14 to 1984-02-19 (NCEI Accession 8600054)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data file contains compressed versions of physical- chemical oceanographic data collected using electronic CTD and STD recorders. These data were collected in...

  5. Gilles Tondini, L’image obscène (The obscene image. Parisian hospital break room Graffitti, New York et Londres, Mark Batty publisher et Thames & Hudson, 2010, 159 p.

    Directory of Open Access Journals (Sweden)

    Christian Hottin

    2012-03-01

    Full Text Available Lors de la parution du livre de Gilles Tondini, le quotidien Libération consacra son « Grand angle » aux fresques des salles de garde des hôpitaux parisiens avec cette introduction : « Sur les murs des salles de garde, les réfectoires réservés aux Internes, s’étalent des peintures où le sexe est roi. Un livre de photos les révèle pour la première fois alors qu’elles sont menacées de disparition ». Comme souvent en feuilletant un journal, le lecteur un peu averti d’un sujet peut déceler d’embl...

  6. Contemporary Art: 1989 to the Present. Edited by Alexander Dumbadze and Suzanne Hudson. Wiley-Blackwell, Chichester, West Sussex, UK, 2013; 512 Pages. Price £22.99, €27.60, ISBN 978-1-4443-3866-9

    Directory of Open Access Journals (Sweden)

    Shu-Kun Lin

    2013-02-01

    Full Text Available An engaging account of today’s contemporary art world that features original articles by leading international art historians, critics, curators, and artists, introducing varied perspectives on the most important debates and discussions happening around the world.

  7. Contemporary Art: 1989 to the Present. Edited by Alexander Dumbadze and Suzanne Hudson. Wiley-Blackwell, Chichester, West Sussex, UK, 2013; 512 Pages. Price £22.99, €27.60, ISBN 978-1-4443-3866-9

    OpenAIRE

    Shu-Kun Lin

    2013-01-01

    An engaging account of today’s contemporary art world that features original articles by leading international art historians, critics, curators, and artists, introducing varied perspectives on the most important debates and discussions happening around the world.

  8. Should the United States Create an American Foreign Legion?

    Science.gov (United States)

    2011-06-01

    The Fall of the Roman Empire: The Military Explanation (London: Thames and Hudson Ltd, 1986). 14 H. Desmond Martin, The Rise of Chingis Khan and his...Company, 1984); Arther Ferrill, The Fall of the Roman Empire: The Military Explanation, (London: Thames and Hudson Ltd, 1986); Douglas Porch, The French...Military Explanation. London: Thames and Hudson Ltd, 1986. Galula, David. Pacification in Algeria 1956-1958. Santa Monica, CA: Rand, 2006

  9. Rome in the Teutoburg Forest

    Science.gov (United States)

    2009-06-12

    cavalry, and 18,700 captured. Adrian Goldsworthy, The Complete Roman Army, (London, England: Thames and Hudson , 2003), 40. 2 continued their path of...The Complete Roman Army (London, England: Thames and Hudson , 2003), 14-15. The question then becomes; why did the Roman mindset change because...Complete Roman Army. London, England: Thames and Hudson Ltd, 2003. ———. The Roman Army at War 100 BC – AD 200. New York, NY: Oxford University Press

  10. The Catskillsと19世紀アメリカ人の礼拝

    OpenAIRE

    水木, 慶子; Keiko, MIZUKI; 東京工芸大学工学部基礎・教養

    2000-01-01

    This paper deals with the Catskill Mountain House, the first American mountain hotel, which is called "one of the monuments of nineteenth century American Culture." Tourism started in America in 1820s and 1830s, half a century later than in Europe, especially in England. Soon American Grand Tour was established, including such American topographical features as Niagara Falls, but the most important part of the Grand Tour was the Hudson Valley. The Hudson Valley included the Hudson River and t...

  11. 75 FR 18553 - New Jersey Disaster # NJ-00014

    Science.gov (United States)

    2010-04-12

    .... Small Business Administration, Processing and Disbursement Center, 14925 Kingsport Road, Fort Worth, TX...: Burlington, Camden, Cumberland, Hudson, Hunterdon, Ocean, Salem, Sussex, Warren. Delaware: New Castle....

  12. Apendicularias de la región oriental de Venezuela

    NARCIS (Netherlands)

    Zoppi de Roa, Evelyn

    1971-01-01

    El presente trabajo es una contribución al estudio de las Apendicularias de la región oriental de Venezuela. Presenta los resultados taxonómicos y de distribución de las especies recolectadas durante los años 1960 a 1962. Las muestras de plancton analizadas indicaron la presencia de 18 especies pert

  13. Apendicularias de la región oriental de Venezuela

    NARCIS (Netherlands)

    Zoppi de Roa, Evelyn

    1971-01-01

    El presente trabajo es una contribución al estudio de las Apendicularias de la región oriental de Venezuela. Presenta los resultados taxonómicos y de distribución de las especies recolectadas durante los años 1960 a 1962. Las muestras de plancton analizadas indicaron la presencia de 18 especies pert

  14. Algunas Plantas Interesantes de Urabá

    Directory of Open Access Journals (Sweden)

    Uribe Uribe S. Lorenzo

    1949-06-01

    Full Text Available En el presente artículo se mencionan algunas plantas de interés medicinal, industrial y florístico, recolectadas en la región de Urabá en enero de 1947, que se encuentran en diferentes Herbarios.

  15. Apendicularias de la región oriental de Venezuela

    NARCIS (Netherlands)

    Zoppi de Roa, Evelyn

    1971-01-01

    El presente trabajo es una contribución al estudio de las Apendicularias de la región oriental de Venezuela. Presenta los resultados taxonómicos y de distribución de las especies recolectadas durante los años 1960 a 1962. Las muestras de plancton analizadas indicaron la presencia de 18 especies

  16. Recolecta de artrópodos para prospección de la biodiversidad en el Área de Conservación Guanacaste, Costa Rica

    National Research Council Canada - National Science Library

    Vanessa Nielsen; Priscilla Hurtado; Daniel H. Janzen; Giselle Tamayo; Ana Sittenfeld

    2004-01-01

    .... Las localidades con más recolectas fueron Santa María (231 spp.; 421 muestras), Santa Rosa (110 spp.; 172 muestras), Cacao (98 spp.; 203 muestras) y Pitilla (67 spp.; 79 muestras), siendo la mayor cantidad recolectadas durante la...

  17. 78 FR 62301 - Change in Bank Control Notices; Acquisitions of Shares of a Bank or Bank Holding Company

    Science.gov (United States)

    2013-10-15

    ...; Harper Deskin Boone Irrevocable Trust; Hudson Morse Parr Irrevocable Trust; Megan Whitney Boone...; Megan W. Boone October 6, 2005 Irrevocable Trust; Harper D. Boone October 6, 2005 Irrevocable Trust... Paige M. Boone Irrevocable Trust; The 2012 Harper D. Boone Irrevocable Trust; The 2012 Hudson M....

  18. A Study to Determine the Best Method of Improving the Flow of Patients Through the Surgical Critical Care Units at Letterman Army Medical Center

    Science.gov (United States)

    1989-07-01

    wellness), all canidates for intensive care are either ’appropriate’, ’too well’, or "too sick’ ( Civetta 39 and Hudson- Civetta 1987, 13). The...Care: How Do We Know it Works?" Archives of Internal <m z Medicine. Vol 148(June): 1270-1271. mz -4 Civetta , Joseph M., and Judith Hudson- Civetta . 1987

  19. The Lexicon in Text Generation.

    Science.gov (United States)

    1986-10-01

    which the verb is in its present participle form ("I saw you arriving", "I heard her coming in"). This particular configuration of possible complements...McIntosh, & Peter Strevens, The Linguistic Sciences and Language Teaching , Indiana University Press, Bloomington, 1964. [Hudson 84] Richard Hudson, Word

  20. The Role of Airpower in the Overlord Invasion: An Effects-based Operation

    Science.gov (United States)

    2007-01-01

    Charles, and Cartographica Limited. "The D-Day Atlas: Anatomy of the Normandy Campaign." New York, N.Y.: Thames & Hudson , 2004. Mets, David R. Master...Cartographica Limited., "The D-Day Atlas: Anatomy of the Normandy Campaign," (New York, N.Y.: Thames & Hudson , 2004), 54. 88 Muller, "Losing Air Superiority: A

  1. Comparison of Development of Heterotopic Ossification in Injured US and UK Armed Services Personnel with Combat-Related Amputations: Preliminary Findings and Hypotheses Regarding Causality

    Science.gov (United States)

    2010-07-01

    infected human bone tissue. Am J Pathol. 2004;164:1399–1406. 25. Bost KL, Bento JL, Ellington JK, Marriott I, Hudson MC. Induction of colony...Alexander EH, Bento JL, Hughes FM Jr, Marriott I, Hudson MC, Bost KL. Staphylococcus aureus and Salmonella enterica serovar Dublin induce tumor necrosis

  2. A Community Terrain-Following Ocean Modeling System (ROMS)

    Science.gov (United States)

    2015-09-30

    coarser DOPPIO grid-a with an averaged resolution of 7km is the donor to the Hudson Canyon grid-b and the Chesapeake-Delaware Bays grid-d. The...ROMS nested grid application for the U.S. East Coast: (a) DOPPIO coarse grid, (b) Hudson Canyon refinement grid (1:3 ratio from a), (c) PIONEER array...temperature (upper panel; Celsius) and surface salinity (lower panel) for 31-Jan-2014. The refined solution for the Hudson Canyon grid is overlaid on

  3. Plankton, temperature and other measurements found in datasets OSD and CTD taken from the HUDSON, PARIZEAU and other platforms in the North Atlantic, Coastal N Atlantic and other locations from 1989 to 1997 Joint Global Ocean Flux Study Canada from 1989 to 1998 (NODC Accession 0000480)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This report presents data sets collected as part of the Canadian portion of the Joint Global Ocean Flux Study. It contains sets of data, which are stored as text...

  4. Improving the U.S. Navy Riverine Capability: Lessons from the Colombian Experience

    Science.gov (United States)

    2007-12-01

    conducted by the Joint Intelligence Board (Junta de Inteligencia Conjunta) in 2005. This study found that the FARC’s main expenditure, nearly 39 percent...their 118 Junta de Inteligencia Conjunta. Estimación de los Ingresos de las FARC Durante 2003 Basados en...Información de Inteligencia Recolectada por las Agencias del Estado,” (Bogotá: Colombia, February 24, 2005): 5. The precursor chemicals included in

  5. Siete especies nuevas de Allorhogas (Hymenoptera: Braconidae: Doryctinae) de México

    OpenAIRE

    Juan José Martínez; Alejandro Zaldívar-Riverón

    2015-01-01

    Se describen, ilustran y caracterizan molecularmente 7 especies nuevas del género gallícola Allorhogas (Braconidae: Doryctinae): A. amuzgo sp. nov., A. coccolobae sp. nov., A. crassifemur sp. nov., A. jaliscoensis sp. nov., A. marshi sp. nov., A. parvus sp. nov. y A. scotti sp. nov. Estas especies fueron recolectadas en bosques tropicales caducifolios de la costa del Pacífico mexicano en Jalisco, Oaxaca y Guerrero. Allorhogas coccolobae fue criada de agallas foliares en Coccoloba barbadensis ...

  6. La donación de sangre como solidaridad humana

    OpenAIRE

    Duque Echeverri, Edgar; Fundación Valle de Lili

    1997-01-01

    Tipos de donantes de sangre/Procedimiento para la donación de sangre/Seguridad en la donación de sangre o de componentes sanguíneos/Recomendaciones especiales para después de la donación/Pruebas de laboratorio para detectar enfermedades infecciosas/Procesamiento de la sangre recolectada/Utilidad clínica de los componentes sanguíneos.

  7. Detección de parásitos intestinales en agua y alimentos de Trujillo, Perú

    Directory of Open Access Journals (Sweden)

    Gregorio Pérez-Cordón

    2008-01-01

    Full Text Available Detectamos distintas especies de parásitos intestinales, tanto protozoos como helmintos, presentes en muestras de agua provenientes de acequias y pozos (Giardia lamblia, Blastocystis hominis, Entamoeba coli, Cyclospora cayetanensis, Cryptosporidium spp. y Balantidium coli, así como en alimentos crudos y cocidos (Giardia lamblia, Cyclospora cayetanensis., Endolimax nana, Iodamoeba butschlii y Blastocystis hominis Fasciola hepatica y Ascaris lumbricoides recolectadas en varios distritos de la provincia de Trujillo, Perú.

  8. CARACTERIZACIÓN DE LAS LARVAS DE DOS ESPECIES DE Paranomala Y UNA ESPECIE DE Strigoderma (COLEOPTERA: MELOLONTHIDAE: RUTELINAE DE PUEBLA, MÉXICO

    Directory of Open Access Journals (Sweden)

    VÍCTOR ALFONSO CUATE MOZO

    2014-01-01

    Full Text Available Se presentan las descripciones de la larva de tercer estadio de Paranomala flavilla (Bates, P. hoepfneri (Bates y Strigoderma costulipennis Bates, recolectadas en el estado de Puebla, México, en suelos con cultivo de amaranto (Amaranthus hypochondriacus L.. Se incluyen ilustraciones distintivas y comentarios sobre las diferencias con las larvas de otras especies de los géneros estudiados en México.

  9. Aportaciones a la flora de la provincia de Cuenca

    OpenAIRE

    Sánchez Melgar, Isabel; García Cardo, Oscar

    2005-01-01

    Se exponen 45 especies de plantas vasculares recolectadas y localizadas en la provincia de Cuenca entre los años 2001 y 2004, y que resultan escasas dentro de la misma, entre ellas se encuentran: Actaea spicata, Allium schoenoprasum subsp. latirifolium, Apium repens, Arceuthobium oxycedri, Arenaria vitoriana, Astragalus depressus, Cardamine pratensis, Centaurea nigra subsp. carpetana, Cotoneaster tomentosus, Dianthus deltoides subsp. deltoides, Draba hispanica subsp. hispanica, Erodium macroc...

  10. Habitat Mapping Cruise (HB0805, EK60)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Objectives are to: 1) perform multibeam mapping of transitional and deepwater habitats in Hudson Canyon (off New Jersey) with the National Institute of Undersea...

  11. Sediments on the Shelf off Southern New England (GARRISON66 shapefile)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The sediments and geomorphology of a portion of the northeastern continental shelf between Hudson Canyon and Georges Bank have been investigated. Wave-cut terraces...

  12. 75 FR 54652 - Notice Pursuant to the National Cooperative Research and Production Act of 1993-National Center...

    Science.gov (United States)

    2010-09-08

    ... University, Greenville, SC; Concurrent Technologies, Johnstown, PA; Connecticut Center for Advanced... Enterprises, Inc., Dallas, TX; Packer Engineering, Inc., Naperville, IL; PDQ Precision Inc., National City, CA..., MI; Pratt & Miller Engineering and Fabrication, Inc., New Hudson, MI; Seica Inc., Salem, NH;...

  13. 76 FR 80393 - Notice of Inventory Completion: Field Museum of Natural History, Chicago, IL

    Science.gov (United States)

    2011-12-23

    ... associated funerary objects were removed from Fresno, Kings, and Madera Counties, CA. This notice is..., Kings County and Raymond, Madera County, CA, by Mr. Hudson. No known individuals were identified. No...

  14. Why It's Smart to Be Bilingual The brain's real super-food may be learning new languages.%Why It's Smart to Be Bilingual The brain's real super-food may be learning new languages.

    Institute of Scientific and Technical Information of China (English)

    Casey Schwartz

    2011-01-01

    On a sweltering August morning, in a classroom overlooking New York's Hudson River, a group of 3-year-olds are rolling sticky riee balls in chocolate sprinkles, as a teacher guides them completely in Mandarin.

  15. Kaks kirja vennale = Two Letters from Vincent van Gogh to his brother / Vincent van Gogh

    Index Scriptorium Estoniae

    Gogh, Vincent van, 1853-1890

    2008-01-01

    Kunstnik Vincent van Goghi kaks kirja oma vennale Theole. Tõlge vene keelest ja kommentaar Mehis Heinsaarelt. Ingliskeelsed kirjad raamatust "The Complete Letters of Vincent van Gogh", Thames and Hudson, 1979

  16. Chemical, temperature, and other data from bottle casts in the North Atlantic Ocean from 04 July 1966 to 17 June 1985 (NODC Accession 0000369)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, temperature, and other data were collected from HUDSON, SIGMA-T, and HOH from July 4, 1966 to June 17, 1985. These data were collected using bottle casts...

  17. Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the LOUIS S. ST. LAURENT in the Baffin Bay, Davis Strait and others from 1997-08-03 to 1997-08-18 (NODC Accession 0114432)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0114432 includes chemical, discrete sample, physical and profile data collected from LOUIS S. ST. LAURENT in the Baffin Bay, Davis Strait, Hudson...

  18. Kaks kirja vennale = Two Letters from Vincent van Gogh to his brother / Vincent van Gogh

    Index Scriptorium Estoniae

    Gogh, Vincent van, 1853-1890

    2008-01-01

    Kunstnik Vincent van Goghi kaks kirja oma vennale Theole. Tõlge vene keelest ja kommentaar Mehis Heinsaarelt. Ingliskeelsed kirjad raamatust "The Complete Letters of Vincent van Gogh", Thames and Hudson, 1979

  19. Genetics Home Reference: Leber hereditary optic neuropathy

    Science.gov (United States)

    ... article on PubMed Central Yu-Wai-Man P, Griffiths PG, Hudson G, Chinnery PF. Inherited mitochondrial optic ... Institutes of Health National Library of Medicine Lister Hill National Center for Biomedical Communications 8600 Rockville Pike, ...

  20. Invest in China, Invest in the Future Of Your Business Growth

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    Despite the challenging credit environment, investors remain bullish about the long-term prospects of travel as an investment category, according to a recent survey by Hudson Crossing, a venture capital and private equity firm based in New York.

  1. 75 FR 67965 - Announcement of Local Government Advisory Committee Members

    Science.gov (United States)

    2010-11-04

    .... Ronald K. Davis, Mayor, Prichard, Alabama. Adam Ortiz, Mayor, Edmonston, Maryland. Heather McTeer Hudson..., Massachusetts. David W. Smith, Mayor, Newark, California. Tribal (Elected and Appointed) Steve Ortiz,...

  2. 75 FR 51451 - Combined Notice of Filings # 1

    Science.gov (United States)

    2010-08-20

    ... LLC; Georgia-Pacific Con Ops LLC Port Hudson; Georgia-Pacific Con Prod LP Green Bay W; Georgia-Pacific Consumer Products LP Mus; Georgia-Pacific Cons Prods LP Naheola ; Georgia-Pacific Cons Prods LP...

  3. 77 FR 20378 - Combined Notice of Filings #1

    Science.gov (United States)

    2012-04-04

    ...., Niagara Mohawk Power Corporation. Description: Agreement No. 1872 between Niagara Mohawk and Wheelabrator Hudson Falls to be effective 10/24/2011. Filed Date: 3/27/12. Accession Number: 20120327-5032....

  4. 441

    African Journals Online (AJOL)

    2001-08-01

    Aug 1, 2001 ... In both the field management and the initial hospital care of the injured road crash ..... medical insurance schemes or personal funds. But, over ... Hudson T. Documentation crucial to ED risk management. Hospital. 1992 ...

  5. Fall Bottom Trawl Survey

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The standardized NEFSC Fall Bottom Trawl Survey was initiated in 1963 and covered an area from Hudson Canyon, NY to Nova Scotia, Canada. Throughout the years,...

  6. Repair Process Improvement at the Ogden Air Logistics Center, Landing Gear Division: A Case Study in the Application of the Theory of Constraints

    Science.gov (United States)

    1993-09-01

    Eliyahu M. Goldratt . It emphasizes constraint identification and exploitation as the key to focusing limited time and resources on processes to achieve... Eliyahu M. Theory of Constraints. Croton-on-Hudson NY: North River Press, Inc., 1990. 113 Goldratt , Eliyahu M. and Jeff Cox. The GaI. Croton-on-Hudson NY...addition, many of the existing validation efforts have been conducted by the Goldratt Institute and may not constitute truly independent looks at what

  7. Accidents involving off-road motor vehicles in a northern community.

    OpenAIRE

    Hasselback, P; Wilding, H R

    1987-01-01

    The increasing number of accidents associated with off-road motor vehicles used for recreational purposes prompted this prospective study. During 1985 the records of victims of all motor vehicle accidents who were seen at the Hudson Bay Union Hospital, Hudson Bay, Sask., were studied; patients involved in on-road vehicle accidents were included for comparison. Emphasis was placed on age, vehicle type, mechanism of accident, injury severity and the use of safety features. Almost half of the vi...

  8. Value Engineering Handbook

    Science.gov (United States)

    2006-09-01

    the following references for further information: • Eliyahu M. Goldratt , Theory of Constraints, Croton-on-Hudson, New York: North River Press, Inc...1990. • Eliyahu M. Goldratt , The Haystack Syndrome, Croton-on-Hudson, New York: North River Press, Inc., 1990. • Eliyahu M. Goldratt , What Is This...Thing Called Theory of Constraints and How Should It Be Implemented? North River Press, December 1999. • Eliyahu M. Goldratt with Eli Schragenheim

  9. The 1859 Space Weather Event: Then and Now

    Science.gov (United States)

    2006-01-01

    region indicates the approximate city limits of London circa 1859. The star on the Basic questions raised about the nature of the promi- Thames river...Zhang et al., 2001; Cliver and Hudson , 2002) and Siscoe for organizing a timely, stimulating, and produc- the nature of underlying "magnetic disease...solar flares associated with coronal mass Res. 101, 15533-15546, 1996. ejection. Astron. Astrophys. 304, 585-594, 1995. Cliver, E.W., Hudson , H.S

  10. Loss of Arctic sea ice causing punctuated change in sightings of killer whales (Orcinus orca) over the past century.

    Science.gov (United States)

    Higdon, Jeff W; Ferguson, Steven H

    2009-07-01

    Killer whales (Orcinus orca) are major predators that may reshape marine ecosystems via top-down forcing. Climate change models predict major reductions in sea ice with the subsequent expectation for readjustments of species' distribution and abundance. Here, we measure changes in killer whale distribution in the Hudson Bay region with decreasing sea ice as an example of global readjustments occurring with climate change. We summarize records of killer whales in Hudson Bay, Hudson Strait, and Foxe Basin in the eastern Canadian Arctic and relate them to an historical sea ice data set while accounting for spatial and temporal autocorrelation in the data. We find evidence for "choke points," where sea ice inhibits killer whale movement, thereby creating restrictions to their Arctic distribution. We hypothesize that a threshold exists in seasonal sea ice concentration within these choke points that results in pulses in advancements in distribution of an ice-avoiding predator. Hudson Strait appears to have been a significant sea ice choke point that opened up .approximately 50 years ago allowing for an initial punctuated appearance of killer whales followed by a gradual advancing distribution within the entire Hudson Bay region. Killer whale sightings have increased exponentially and are now reported in the Hudson Bay region every summer. We predict that other choke points will soon open up with continued sea ice melt producing punctuated predator-prey trophic cascades across the Arctic.

  11. Antibacterial activity of selected marine macro algae against vancomycin resistant Enterococcus faecalis

    Directory of Open Access Journals (Sweden)

    Manivachagam Chandrasekaran

    2014-12-01

    Full Text Available Objective: To evaluate the antibacterial activity of different extracts of Caulerpa chemnitzia (Epser J.V. Lamououx, Caulerpa racemosa (Frosk. Weber-van-Bosse (C. racemosa, Caulerpa scalpelliformis (R.Br. Weber-van-Bosse, Ulva lactuca Lin, Ulva fasciata Dellie, Ulva reticulata Forsk, Stoechospermum marginatum (Ag. Kutz (S. marginatum, Sargassum wightii Grev, Gracilaria verrucosa (Huds. Papenfuss and Gracilaria edulis (S.G. Gemelin P.C. Silva against Enterococcus faecalis (MTCC 439 (E. faecalis and one clinical isolate of vancomycin resistant E. faecalis. Methods: The selected marine macro algae were extracted with different solvents viz., hexane, chloroform, ethyl acetate, acetone and methanol. Antibacterial assay was carried out by using disc diffusion method, determination of minimum inhibitory concentration and minimum bactericidal concentration. Results: The maximum antibacterial activity was recorded in the ethyl acetate extracts of S. marginatum and C. racemosa than the other extracts. The mean zone of inhibition produced by the extracts in agar diffusion assays against the tested bacterial strains ranged from 7.1 to 14.5 mm. The minimum inhibitory concentration was between 250 and 500 µg/mL, while the minimum bactericidal concentration was from 500 to 1 000 µg/mL. The ethyl acetate extracts of the seaweeds showed the presence of strong terpenoids, tannins and phenolic compounds compared with the other solvent extracts. Conclusions: These findings suggest that ethyl acetate extracts of S. marginatum and C. racemosa can be used as an antibacterial substance for the treatment of infection caused by E. faecalis.

  12. Antibacterial activity of selected marine macro algae against vancomycin resistant Enterococcus faecalis

    Institute of Scientific and Technical Information of China (English)

    Manivachagam Chandrasekaran; Venugopalan Venkatesalu; Gnanaprakasam Adaikala Raj

    2014-01-01

    Objective: To evaluate the antibacterial activity of different extracts of Caulerpa chemnitzia (Epser) J.V. Lamououx, Caulerpa racemosa (Frosk.) Weber-van-Bosse (C. racemosa), Caulerpascalpelliformis Forsk, Stoechospermum marginatum (Ag.) Kutz (S. marginatum), Sargassum wightii Grev,Gracilaria verrucosa (R.Br.) Weber-van-Bosse, Ulva lactuca Lin, Ulva fasciata Dellie, Ulva reticulata Enterococcus faecalis (MTCC 439) (E. faecalis) and one clinical isolate of vancomycin resistant E.faecalis. Methods: The selected marine macro algae were extracted with different solvents viz., hexane, chloroform, ethyl acetate, acetone and methanol. Antibacterial assay was carried out by using disc diffusion method, determination of minimum inhibitory concentration and minimum bactericidal concentration.Results:(Huds.) Papenfuss and Gracilaria edulis (S.G. Gemelin) P.C. Silva against marginatum and C. racemosa than the other extracts. The mean zone of inhibition produced by the extracts in agar diffusion assays against the tested bacterial strains ranged from 7.1 to 14.5 mm. The minimum inhibitory concentration was between 250 and 500 µg/mL, while the minimum bactericidal concentration was from 500 to 1000 µg/mL. The ethyl acetate extracts of the seaweeds showed the presence of strong terpenoids, tannins and phenolic compounds compared with the other solvent extracts.Conclusions:The maximum antibacterial activity was recorded in the ethyl acetate extracts of S. racemosa can be used as an antibacterial substance for the treatment of infection caused by E. faecalis. These findings suggest that ethyl acetate extracts of S. marginatum and C.

  13. GRACILARIA VERMICULOPHYLLA (RHODOPHYTA, GRACILARIALES) IN THE VIRGINIA COASTAL BAYS, USA: COX1 ANALYSIS REVEALS HIGH GENETIC RICHNESS OF AN INTRODUCED MACROALGA.

    Science.gov (United States)

    Gulbransen, Dana J; McGlathery, Karen J; Marklund, Maria; Norris, James N; Gurgel, Carlos Frederico D

    2012-10-01

    Gracilaria vermiculophylla (Ohmi) Papenfuss is an invasive alga that is native to Southeast Asia and has invaded many estuaries in North America and Europe. It is difficult to differentiate G. vermiculophylla from native forms using morphology and therefore molecular techniques are needed. In this study, we used three molecular markers (rbcL, cox2-cox3 spacer, cox1) to identify G. vermiculophylla at several locations in the western Atlantic. RbcL and cox2-cox3 spacer markers confirmed the presence of G. vermiculophylla on the east coast of the USA from Massachusetts to South Carolina. We used a 507 base pair region of cox1 mtDNA to (i) verify the widespread distribution of G. vermiculophylla in the Virginia (VA) coastal bays and (ii) determine the intraspecific diversity of these algae. Cox1 haplotype richness in the VA coastal bays was much higher than that previously found in other invaded locations, as well as some native locations. This difference is likely attributed to the more intensive sampling design used in this study, which was able to detect richness created by multiple, diverse introductions. On the basis of our results, we recommend that future studies take differences in sampling design into account when comparing haplotype richness and diversity between native and non-native studies in the literature.

  14. Spreading and autoecology of the invasive species Gracilaria vermiculophylla (Gracilariales, Rhodophyta) in the lagoons of the north-western Adriatic Sea (Mediterranean Sea, Italy)

    Science.gov (United States)

    Sfriso, A.; Wolf, M. A.; Maistro, S.; Sciuto, K.; Moro, I.

    2012-12-01

    Gracilaria vermiculophylla (Ohmi) Papenfuss, an invasive Rhodophyta recently recorded in the Po Delta lagoons (May 2008), was also found in the Venice lagoon in March 2009 and successively in Pialassa della Baiona (Emilia-Romagna Region) in May 2009. The species has colonized the eutrophic and confined areas of Venice by pleustophytic tangled populations (5-15 kg fwt m-2), replacing the allochthonous species whereas it is absent in the areas characterized by low nutrient availability and high water exchange. In contrast, in the Po Delta lagoons and in Pialassa della Baiona it is present everywhere, also with high water renewal, because of the eutrophication caused by the Po river and the industrial area of Ravenna. This study presents the autoecology and distribution of G. vermiculophylla in the above environments, according to their different eutrophication status, showing its relationship with physico-chemical parameters and nutrient concentrations in water column, pore-water, surface sediments and particulate matter collected by traps in a station of the Venice lagoon (Teneri) sampled monthly during one year. Furthermore, we give new information on its morphology and the high dimorphism between female and male gametophytes and tetrasporophytes.

  15. Qualidade física e sanitária de sementes de Zea mays L. colhidas por colhedoras radiais

    Directory of Open Access Journals (Sweden)

    Leandra Matos Barrozo

    2011-01-01

    Full Text Available Este trabajo fue desarrollado con el objetivo de evaluar la calidad física y sanitaria de semillas de maíz en dos cosechadoras operando a velocidades distintas y en muestras recolectadas de diferentes lugares en la máquina. Se utilizó un diseño factorial 2x2x2, delineamiento enteramente casualizado con cuatro repeticiones. Los tratamientos fueron constituidos por dos cosechadoras (New Holland TC 57 y New Holland TC 59, operando en dos velocidades (4 km.h-1 y 5 km.h-1 y dos lugares de recolección de las muestras (entrada del tanque granelero y salida del tubo de descarga. Para todos los tratamientos se evaluó: pureza, porcentaje de semillas quebradas, dañadas y la presencia de hongos asociados a las semillas. Hubo interacción significativa entre los factores sólo en la obtención de los promedios de semillas puras. Se constató, principalmente, la presencia de Fusarium sp., Cladosporium sp., Aspergillus spp. y Penicillium sp. Menores pérdidas fueron observadas cuando se utilizó la cosechadora TC 57 a una velocidad de 4 km.h-1. No hubo diferencias entre velocidades para pérdidas cualitativas de semillas recolectadas por la cosechadora TC 59. Semillas recolectadas por ambas cosechadoras y en las dos velocidades presentaron diferencias en presencia de hongos, mostrando mayor incidencia en las semillas cosechadas en la salida del tubo de descarga.

  16. Campo abierto

    OpenAIRE

    2013-01-01

    Resumen: como punto de partida para ingresar a la Maestría en Artes Plásticas y Visuales se planteó la propuesta denominada Mail Art del archivo a la Praxis, cuyo objetivo pretendía reflexionar y contrastar esta forma de arte relacional y de comunicación artística a distancia en redes análogas y digitales, apoyado en la información del archivo personal recolectada desde 1982 hasta la fecha consistente en la documentación de exposiciones de manera local e internacional, de teoría sobre el tema...

  17. Biocontrol de la deposición atmosférica de metales pesados en Navarra (España) mediante musgos terrestres

    OpenAIRE

    1997-01-01

    Con el fin de estudiar la deposición atmosférica de metales pesados en Navarra (España), se han analizado los contenidos en Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb y Zn en muestras de Hypnum cupressiforme Hedw., Scleropodium purum (Hedw.) Limpr., Hylocomium splendens (Hedw.) B., S. & G.. Thuidium tamariscinum (Hedw.) B., S. & G. y Pleurozium schreberi (Brid.) Mitt. recolectadas en 17 localidades repartidas por toda la provincia de Navarra. Los datos obtenidos están en el rango de otros ...

  18. Biocontrol de la deposición atmosférica de metales pesados en Navarra (España) mediante musgos terrestres

    OpenAIRE

    1997-01-01

    Con el fin de estudiar la deposición atmosférica de metales pesados en Navarra (España), se han analizado los contenidos en Al, As, Cd, Cr, Cu, Fe, Hg, Mn, Ni, Pb, y Zn en muestras de Hypnum cupressiforme Hedw., Scleropodium purum (Hedw.) Limpr., Hylocomium splendens (hedw.) B., S. and G., THuidium tamariscinum (Hedw.) B., S. and G. y Pleurozium schereberi (Brid.) Mitt. recolectadas en 17 localidades repatidas por toda la provincia de Navarra. Los datos obtenidos están en el rango de otros co...

  19. Identificación de celdas atípicas en experimentos factoriales mediante el uso de regresión robusta

    OpenAIRE

    Vargas N., José Alberto

    2012-01-01

    La identificación de celdas atípicas en diseños factoriales puede llevarse a cabo de una forma más eficaz mediante la utilización de estimadores M redescending. En regresión robusta se les asigna un peso pequeño a estas celdas. Se propone un método que permite identificar estas celdas cuando se ajusta un modelo de orden menor a las median as de las observaciones recolectadas en cada celda.

  20. Evaluación de una metodología de tamizaje en la enfermedad de Chagas en San Luis, Argentina Evaluation of a screening method for Chagas disease in San Luis, Argentina

    OpenAIRE

    Raquel Arrieta; Beatriz Daquino; Nora Rosso; María Gladys Ferreras; Nicanor Juárez

    2004-01-01

    OBJETIVO: Evaluar la aplicación de una metodología de tamizaje para la enfermedad de Chagas, en el ámbito de la Provincia de San Luis, únicamente en el procesamiento de muestras capilares y de las pruebas diagnósticas utilizadas. MATERIAL Y MÉTODOS: Muestras de sangre capilar pertenecientes a 250 niños, obtenidas en sus respectivos domicilios -sitos en la Provincia de San Luis, Argentina- y recolectadas sobre amortiguador de glicerina, se procesaron por hemaglutinación indirecta cuantitativa ...

  1. The reproductive biology of Lutraria philippinarum (Veneroida: Mactridae) and its fishery in the Philippines

    OpenAIRE

    Bantoto, Venus; Ilano, Anthony

    2012-01-01

    Lutraria philippinarum es una especie de bivalvo recolectada regularmente para la alimentación y como fuente de ingreso en las Filipinas. Para el suministro sostenible de este recurso en la naturaleza, se necesitan estrategias de manejo efectivas, así como la evaluación de su biología reproductiva y pesquera. Se examinaron estos aspectos mensualmente de enero-diciembre 2010 en North Bais Bay, Manjuyod, Negros Oriental, Filipinas. Se tomó medida del tamaño a la madurez sexual, proporción de se...

  2. Flora bacteriana cloacal y nasal de Lepidochelys olivacea (Testudines: Cheloniidae) en el pacífico norte de Costa Rica

    OpenAIRE

    Mario Santoro; Carlos Mario Orrego; Giovanna Hernández Gómez

    2014-01-01

    Con el objetivo de determinar la flora normal aerobia, cloacal y nasal de la tortuga lora (Lepidochelys olivacea ), entre los meses de julio y agosto del 2002,se colectaron muestras bacteriológicas de 45 quelonios aparentemente sanos,durante el desove en Playa Nancite,Parque Nacional Santa Rosa, Costa Rica, a través del uso de hisopos estériles que se introdujeron en la cloaca y en uno de los conductos nasales. De las muestras recolectadas se obtuvieron e identificaron un total de 99 aislamie...

  3. Involucramiento de producto y lealtad de marca para productos de consumo masivo en Bogotá D.C.

    OpenAIRE

    Pedro Julián Ramírez Angulo; Edison Jair Duque Oliva

    2013-01-01

    Mediante este artículo se busca validar algunas hipótesis referentes a la relación entre Involucramiento de Producto y Lealtad de Marca para productos de consumo masivo en Bogotá (Colombia). Para tal fin, se recolectó información acerca de las percepciones de involucramiento de producto y lealtad de marca para 478 consumidores bogotanos, que posteriormente fue analizada mediante Modelos de Ecuaciones Estructurales. A través de la información recolectada, se determinó la existencia de relación...

  4. New distributional data on the Orthoptera (Saltatoria of the northern Dodecanese (“Southern Sporadhes” Archipelago, Greece

    Directory of Open Access Journals (Sweden)

    Papapavlou, K. P.

    2005-06-01

    Full Text Available A catalogue of Orthoptera species collected during 1997 from isolated islets of the northern Dodecanese archipelago, Greece, is presented. Information on related taxonomical aspects and ecological parameters is also given.

    Se presenta un catálogo de especies de Ortópteros recogidos durante 1997 en pequeñas islas aisladas del archipiélago del norte del Dodecaneso (Espóradas del sur, Grecia También se incluye información sobre algunos aspectos taxonómicos y ecológicos de las especies recolectadas.

  5. Caracterización espacio temporal de la estructura térmica de un embalse tropical poco profundo, abastecido parcialmente por bombeo

    OpenAIRE

    Román Botero, Ricardo

    2011-01-01

    Se investigó la evolución espacial y temporal de la estructura térmica y los procesos de transporte del embalse tropical La Fe, un embalse ubicado en el municipio de El Retiro-Antioquia-Colombia, cerca de la línea ecuatorial (~6°N), mediante información recolectada en campo en el año 2010 y con ayuda de un modelo hidrodinámico (ELCOM). El embalse recibe fuentes naturales y aportes de agua mediante un sistema de bombeo en los períodos de estiaje. Se encontró que la influencia del ciclo anua...

  6. Les grands mammifères du site pleistocene supérieur de la grotte du Castillo. Étude archéozoologique : donnes paleontologiques, taphonomiques et palethnographiques

    Directory of Open Access Journals (Sweden)

    Abdellah Dari

    1999-01-01

    Full Text Available El texto présenta un estudio arqueozoolôgico de una colecciôn de fauna del yacimiento de El Castillo en el Institut de Paléontologie Humaine de Paris. Esta colecciôn es parte de la fauna recolectada en las excavaciones de 1910 a 1914.This article présents and archaeozoological analysis of a collection at the I.P.H. This collection is part of the faunal remains collected in 1910/1914 diggings at El Castillo cave by H. Obemaier and H. Breuil.

  7. Programa temporal de evaluación hidroacústica de merluza del sur en aguas interiores de la X y XI Regiones, año 2002. Informe final corregido

    OpenAIRE

    Lillo, S.; Céspedes, R.; Barbieri, M. A.; Saavedra, A.; Gálvez, P.

    2004-01-01

    Se presentan los resultados de la evaluación de la biomasa y la distribución espacial de la merluza del sur (Merluccius australis), estructurado por tallas y edad en las aguas interiores de la X y XI Regiones aplicando el método hidroacústico. También se estima la abundancia relativa y la importancia de la fauna acompañante proveniente de los lances de pesca con arrastre a mediagua. Con la información recolectada en el Crucero y en la pesquería se plantea un modelo de dinámi...

  8. Importancia de los ácidos grasos poliinsaturados de cadena larga en la alimentación del lactante: cuantificación de éstos en algunas fórmulas lácteas para bebés de 0 a 6 meses, comercializadas en la ciudad de Medellín, 2012

    OpenAIRE

    Diana L. Cárdenas S.; Julieth N. Quintero-Laverde; Beatriz E. López M

    2014-01-01

    Resumen Objetivo: comparar el contenido de ácidos grasos poliinsaturados (lcpufa) reportados en las etiquetas nutricionales de las fórmulas lácteas infantiles, comercializadas en supermercados de la ciudad de Medellín frente a la cantidad determinada experimentalmente. Metodología: se estudiaron trece fórmulas infantiles de iniciación, recolectadas del stand donde se encontraban exhibidas. El procedimiento para la extracción, cuantificación y análisis de los ácidos grasos de las muestras s...

  9. Perfil biofísico de palma camedor (Chamae dorea elegans Mart.) en el estado de Veracruz: una especie de importancia ornamental en las zonas tropicales

    OpenAIRE

    Emiliano Pérez Portilla; Daniel Geissert Kientz

    2008-01-01

    La palma camedor es una planta or na men tal que ha sido recolectada en las regiones tropicales de México y actualmente también es cultivada en varios estados del país, es una planta umbrófila que puede estar integrada en sistemas de producción que cuentan con un estrato arbóreo. Debido a la importancia que tiene esta especie en los programas que se enfocan a promover el manejo de los recursos naturales, se planteó identificar su perfil biofísico con miras a apoyar la planificación de su cult...

  10. Especie nueva de hidracárido del género Piona (Acari: Hydrachnidia: Pionidae de los canales de Xochimilco, México New species of water mites of the genus Piona (Acari: Hydrachnidia: Pionidae, from Xochimilco's water channel, Mexico

    Directory of Open Access Journals (Sweden)

    Carlos Humberto Marín-Hernández

    2009-04-01

    Full Text Available Se describe una especie nueva de hidracárido (Hydrachnidia: Pionidae perteneciente al género Piona, recolectada en canales de la zona lacustre de Xochimilco, México, D. F. Éste es el primer registro de la familia y del género para la ciudad de México.A new water mite species is described, belonging to the genus Piona (Hydrachnidia: Pionidae, collected from a canal at Xochimilco, México City, Mexico.This represents the first family and genus record for México City.

  11. Estudio sobre diferencias de género en el aula de matemáticas

    OpenAIRE

    2010-01-01

    Este proyecto indagó sobre las relaciones de género entre las y los profesores y las y los estudiantes en el aula de matemáticas, y cómo éstas influyen en el desempeño académico de ellos y ellas. Esta investigación se realizó en dos instituciones mixtas de la ciudad de San Juan de Pasto, y la información fue recolectada por medio de entrevistas y observaciones dentro del aula de clase, las cuales se analizaron desde un punto de vista cualitativo y cuantitativo. Finalmente, se espera que esta ...

  12. Modelización de procesos de enseñanza en profesores de ciencias de la ciudad de manizales (colombia) desde el concepto contenido pedagógico del conocimiento

    OpenAIRE

    Velásques Sarría, J.

    2009-01-01

    Se modelizó el pensamiento de 50 profesores de educación básica secundaria sobre el concepto Contenido Pedagógico del Conocimiento. El análisis de la información recolectada se realizó con el empleo de Atlas-Ti. Los maestros reconocen que para enseñar ciencias no es suficiente con tener el conocimiento de la materia; también consideran necesarios otros tipos de conocimientos como el pedagógico general, de los estudiantes, curricular, del contexto y didáctico. Los docentes consideran esencial ...

  13. Caracterización por cromatografía de gases-espectrometría de masas del thinner comercialmente disponible en la ciudad de Cartagena

    OpenAIRE

    Olivero, Jesus; Noguera, Katia; Maldonado, Wilson

    2013-01-01

    El thinner es uno de los productos de mayor utilización en la industria de las pinturas, lubricantes y pegamentos. Su composición es variable de acuerdo con su uso y calidad. Sin embargo, la exposición crónica es una preocupación debido a que puede afectar órganos principales tales como pulmones, hígado, riñón y glándulas suprarrenales. En este estudio fue caracterizada la composición de varias muestras de thinner, disponibles comercialmente en la ciudad de Cartagena, que fueron recolectadas ...

  14. Estudio de nivel de conocimiento docente sobre las condiciones que se requieren para los procesos inclusivos en las escuelas del cantón Cuenca

    OpenAIRE

    Aguirre Vargas, Isabel Cecilia

    2014-01-01

    Este estudio se fundamentó en el análisis del nivel de conocimiento para realizar procesos inclusivos por parte de los docentes, información que fue recolectada a través de la aplicación de una encuesta a gran escala a 330 profesores de 19 escuelas del cantón Cuenca de la provincia del Azuay. Los resultados de la investigación hicieron notar que si bien existe un conocimiento aceptable por parte de los profesores en cuanto a discapacidad y educación inclusiva, siendo mayor el conocimiento en ...

  15. Modelización de procesos de enseñanza en profesores de ciencias de la ciudad de manizales (colombia) desde el concepto contenido pedagógico del conocimiento

    OpenAIRE

    2009-01-01

    Se modelizó el pensamiento de 50 profesores de educación básica secundaria sobre el concepto Contenido Pedagógico del Conocimiento. El análisis de la información recolectada se realizó con el empleo de Atlas-Ti. Los maestros reconocen que para enseñar ciencias no es suficiente con tener el conocimiento de la materia; también consideran necesarios otros tipos de conocimientos como el pedagógico general, de los estudiantes, curricular, del contexto y didáctico. Los docentes consideran esencial ...

  16. Las plantas vasculares de los afloramientos rocosos de Suesca, Cordillera Oriental colombiana

    OpenAIRE

    Betancur Julio César; Avellaneda Cadena Carolina

    2006-01-01

    Se muestrearon las plantas vasculares presentes en tres tipos de afloramientos rocosos del municipio de Suesca, departamento de Cundinamarca (Colombia), ubicados entre 2.800 y 3.000 m de altitud. Estos sitios se denominaron Valle de los Halcones (VH), Farallones de Suesca (FS) y Los Monolitos (LM). Cada planta fue recolectada, determinada y se le anotó la superficie en la que crecía (placa, repisa o fisura) y el hábito de crecimiento (erecta, colgante o perpendicular a la superficie). Se enco...

  17. Plantas de la Comisión Científica al Pacífico (1862-1865. I. Canarias, Cabo Verde, Brasil y Uruguay

    Directory of Open Access Journals (Sweden)

    Blanco, Paloma

    2002-06-01

    Full Text Available Plants from the MA herbarium, that were collected by the Scientific Commission to the Pacific expedition, have been studied. In the countries cited, 2899 samples, corresponding to 1070 numbers (602 taxa, 146 families, were collected.Se estudian las plantas recolectadas durante la expedición científica depositadas en el herbario MA. En los países señalados se recogieron 2899 ejemplares correspondientes a 1070 números (602 táxones, 146 familias.

  18. Conocimiento Danzario

    OpenAIRE

    Martinez Medina, Carlos Andres; Universidad Distrital Francisco Jose de Caldas

    2015-01-01

    Conocimiento danzario es uno de los productos emanados de la investigación titulada “Saberes y prácticas danzarias, proposiciones sobre una dimensión política de la danza más acá del cuerpo, el movimiento y la escena”. En éste buscamos indagar por la existencia de la producción de un conocimiento danzario gracias a un ejercicio de análisis del discurso que cruza la información recolectada en entrevistas a maestros de danza con dos grillas conceptuales, por un lado la propuesta de Michael Fouc...

  19. Edu-entretenimiento: estrategia comunicativa para la promoción de los derechos sexuales y reproductivos de los adolescentes en Montería-Córdoba

    OpenAIRE

    Pérez Berrocal, María Cecilia

    2014-01-01

    Se diseñó una estrategia de edu-entretenimiento basada en la creación de un magazínjuvenil para radio que presenta las características de una estrategia de intervención enedu-entretenimiento para prevenir posibles embarazos en adolescentes en Montería,teniendo como modelo la metodología del programa “Mi Comunidad” de PCI–MediaImpact. Este producto de edu-entretenimiento surge a partir del procesamiento deinformación recolectada en doce grupos focales y de la realización de talleres creativosc...

  20. Notas sobre las especies de los pastizales entre Iquitos y Nauta, Loreto, Perú

    Directory of Open Access Journals (Sweden)

    Oscar Tovar-Serpa

    2011-07-01

    Full Text Available Durante el año 2006 fueron recolectadas especies que conforman los pastizales cercanos a la carretera entre Iquitos y Nauta. Se identificaron 69 especies. El tipo de vegetación que caracteriza esta región es el bosque tropical lluvioso, donde el estrato bajo es habitado por los pastos constituidos básicamente por las Gramineas (Poáceas y en pequeña proporción por especies de otras Familias como: Fabáceas, Malváceas, Acanthaceas, Amaranthaceas, etc. Se presentan claves para la identificación de Familias, Géneros y Especies.

  1. Nuevas citas de ácaros oribátidos (Acari: Oribatida para la Argentina

    Directory of Open Access Journals (Sweden)

    Ana SALAZAR MARTÍNEZ

    2006-01-01

    Full Text Available En la presente nota se citan, por primera vez para la Argentina, cuatro especies de ácaros oribátidos: Epilohmannia pallida americana Balogh & Mahunka, 1981, Protoribates (Triangius praeoccupatus (Pérez-Iñigo & Baggio, 1980, Scheloribates curvialatus Hammer, 1961 y Galumna innexa Pérez-Iñigo & Baggio, 1986. Los ejemplares fueron hallados en muestras de suelo recolectadas en La Plata, Provincia de Buenos Aires (34º 54’S, 57º 55 ́ W, en ambientes sometidos a intervención antrópica: bosques urbanos, huertas orgánicas y pastizales.

  2. Fitoplancton del parque nacional las tablas de dabmiel III. diatomeas y clorofitas

    OpenAIRE

    Elizabeth Ortega Mayagoitia; Carmen Rojo

    2000-01-01

    reserva de biodiversidad, que sufre un acelerado proceso de eutrofización y profundos cambios hidrológicos. En este trabajo se describen la taxonomía, la dinámica y la ecología de las 9 diatomeas (2 centrales, 7 pennadas) y las 37 clorofitas (24 cocales, 8 flageladas y 5 especies de otros grupos) recolectadas entre los años 1996-1998. La mayor parte de las especies son características de ambientes eutróñcos y algunas son indicadoras de salinidad (Chaetoceros muelleri). Las especies más abunda...

  3. Ruta de apoyo pedagógico para la enseñanza de geometría y trigonometría, en el curso 'matemáticas básicas' de la Universidad Nacional de Colombia Sede Medellín / Way supporting education for the teaching geometry and trigonometry, in the course 'basic mathematics' at the Universidad Nacional de Colombia Sede Medellín.

    OpenAIRE

    Gómez, Olmar Arley

    2011-01-01

    En este informe de práctica se estudian las fortalezas y debilidades en el aprendizaje de geometría y trigonometría de los estudiantes del curso "Matemáticas Básicas", haciendo un análisis de la información recolectada en el grupo 15 que cursó el primer semestre del año 2011. En este análisis se presenta información acerca de los registros de notas y una encuesta que valora aspectos importantes acerca de las impresiones que tienen los estudiantes frente a su aprendizaje y a los recursos que s...

  4. Calidad de vida de los cuidadores familiares de los pacientes con enfermedad de Alzheimer / Quality of life of patients with family caregivers of Alzheimer's disease

    OpenAIRE

    Osorio Lambis, Martha,

    2011-01-01

    Esta investigación tiene como objetivo describir la calidad de vida del cuidador familiar de paciente con enfermedad de Alzheimer en la ciudad de Cartagena, en las dimensiones física, psicológica, social y espiritual observada y recolectada en su ambiente natural. El diseño del estudio es de tipo descriptivo con abordaje cuantitativo, la muestra fue constituida por 61 cuidadores familiares de pacientes con enfermedad de Alzheimer inscritos en la Fundación Centro Colombiano de Epileps...

  5. Monitorización molecular de la ecología levaduriforme de la uva al vino

    OpenAIRE

    López Enríquez, Lorena

    2015-01-01

    La calidad y singularidad de un vino están estrechamente relacionadas con las poblaciones de levaduras asociadas al proceso de transformación desde la uva al vino. El principal objetivo de este trabajo ha sido el estudio de la sucesión natural de especies de levaduras propio de un proceso de vinificación, realizado mediante fermentación espontánea, a partir de uva de variedad Verdejo, recolectada de una parcela de orientación sur, localizada en la D. O. Rueda. Para ello, se ana...

  6. Detección de bacterias fitopatógenas en semillas de maíz (zea mays L.)

    OpenAIRE

    Yonis Hernández; Gustavo Trujillo

    2001-01-01

    Se realizó un estudio con el objeto de conocer la presencia de bacterias fitopatógenas en semillas de maíz. Las muestras de este cereal, que es uno de los más importantes cultivos agrícolas en el ámbito mundial y uno de los primeros en Venezuela, fueron recolectadas en el Centro Nacional de Investigaciones Agropecuarias y la Universidad Central de Venezuela, y se analizaron usando serología (doble difusión en agar) y medio semiselectivo. De 21 muestras de maíz dentado, todas resultaron contam...

  7. Caracterización molecular de 43 accesiones de uchuva de seis departamentos de Colombia Molecular characterization of 43 accesions of Cape gooseberry from six departments of Colombia

    OpenAIRE

    Martha Liliana Bonilla Betancourt; Katherine Espinosa Piedrahíta; Andrés Mauricio Posso Terranova; Herney Darío Vásquez Amariles; Jaime Eduardo Muñoz Flórez

    2008-01-01

    La técnica RAM (Random Amplified Microsatellites) se usó para el análisis de diversidad genética de 43 accesiones de uchuva recolectadas en seis regiones de Colombia (Nariño, Valle del Cauca, Cauca, Caldas, Quindío y Cundinamarca), pertenecientes a la colección establecida en la Universidad Nacional de Colombia sede Palmira. El análisis se realizó sobre 42 loci polimórficos obtenidos con siete cebadores, encontrándose baja diversidad para las introducciones de Nariño, Cauca, Quindío, Caldas y...

  8. Caracterización molecular de 43 accesiones de uchuva de seis departamentos de colombia

    OpenAIRE

    Martha Liliana Bonilla Betancourt; Katherine Espinosa Piedrahíta; Andrés Mauricio Posso Terranova; Herney Darío Vásquez Amariles; Jaime Eduardo Muñoz Flórez

    2008-01-01

    La técnica RAM (Random Amplified Microsatellites) se usó para el análisis de diversidad genética de 43 accesiones de uchuva recolectadas en seis regiones de Colombia (Nariño, Valle del Cauca, Cauca, Caldas, Quindío y Cundinamarca), pertenecientes a la colección establecida en la Universidad Nacional de Colombia sede Palmira. El análisis se realizó sobre 42 loci polimórficos obtenidos con siete cebadores, encontrándose baja diversidad para las introducciones de Nariño, Cauca, Quindío, Caldas y...

  9. Importancia de los ácidos grasos poliinsaturados de cadena larga en la alimentación del lactante: cuantificación de éstos en algunas fórmulas lácteas para bebés de 0 a 6 meses, comercializadas en la ciudad de Medellín, 2012

    OpenAIRE

    Diana L. Cárdenas S.; Julieth N. Quintero-Laverde; Beatriz E. López M

    2014-01-01

    Resumen Objetivo: comparar el contenido de ácidos grasos poliinsaturados (lcpufa) reportados en las etiquetas nutricionales de las fórmulas lácteas infantiles, comercializadas en supermercados de la ciudad de Medellín frente a la cantidad determinada experimentalmente. Metodología: se estudiaron trece fórmulas infantiles de iniciación, recolectadas del stand donde se encontraban exhibidas. El procedimiento para la extracción, cuantificación y análisis de los ácidos grasos de las muestras s...

  10. Posición del agujero dentario inferior en la rama ascendente en huesos mandibulares secos de adultos

    OpenAIRE

    Gutierrez-Ventura, Fredy; Facultad de Estomatología Roberto Beltrán Universidad Peruana Cayetano Heredia; Tataje Vivanco, Yarim

    2014-01-01

    Objetivos: El presente estudio consistió en observar y definir la ubicación del agujero dentario inferior en la rama ascendente de 53 mandíbulas secas de adultos. Material y métodos: La muestra fue recolectada del laboratorio de anatomía de la Facultad de Estomatología de la UPCH. Se evaluó y midió las distancias del agujero dentaria inferior hacia los bordes limitantes de la rama mandibular, es decir la distancia anterior, posterior, superior e inferior y establecer relación entre las medida...

  11. Reconfiguraciones de género y vulnerabilidad al VIH /Sida en mujeres transgénero en Colombia

    OpenAIRE

    2010-01-01

    Esta investigación buscó identificar las formas más representativas para representar e imaginar la sexualidad dentro de la comunidad transgénero en Colombia. Desarrollamos un estudio descriptivo exploratorio utilizando encuestas, entrevistas a profundidad, grupos focales y estrategias etnográficas con 18 personas transgénero. La información recolectada fue analizada teniendo en cuenta las siguientes dimensiones de interpretación: 1. Amor, erotismo y relaciones sexuales. 2. Género e identidade...

  12. Enzimas de restricción de bacterias nativas de Nicaragua

    OpenAIRE

    lan Roustan-Espinosa; Douglas Guerrero; Ernesto Flores; Jorge Huete-Pérez

    2000-01-01

    Los avances de la ingeniería genética y la biología molecular han propiciado la utilización de bacterias en la industria biotecnológica. En este trabajo se presenta la identificación y caracterización de enzimas de restricción presentes en bacterias recolectadas en medios acuosos de Nicaragua. Se encontró actividad de restricción en el 25% del total de bacterias analizadas. Se abordan los procesos de purificación de extractos de proteínas de bacterias con actividades de Sau961 y Pvull. Este t...

  13. Dos casos de intoxicación por contaminación de maíz con Datura stramonium en ganado vacuno

    OpenAIRE

    FX Bofill; Bofill, J; G Such; Piqué, E.; Guitart, R.

    2007-01-01

    Recientemente hemos observado dos intoxicaciones en ganado vacuno lechero, en granjas de Cataluña, debidas a la ingestión de estramonio (Datura stramonium). La planta había sido en ambos casos erróneamente recolectada junto con el maíz empleado para la alimentación de los animales. El cuadro fue leve y, básicamente, cursó con problemas digestivos y descenso en la producción lechera, y remitió con la retirada del alimento contaminado. Debido a factores ambientales y económ...

  14. Estudio sobre diferencias de género en el aula de matemáticas

    OpenAIRE

    Laura Salazar; Verónica Hidalgo; Hilbert Blanco

    2010-01-01

    Este proyecto indagó sobre las relaciones de género entre las y los profesores y las y los estudiantes en el aula de matemáticas, y cómo éstas influyen en el desempeño académico de ellos y ellas. Esta investigación se realizó en dos instituciones mixtas de la ciudad de San Juan de Pasto, y la información fue recolectada por medio de entrevistas y observaciones dentro del aula de clase, las cuales se analizaron desde un punto de vista cualitativo y cuantitativo. Finalmente, se espera que esta ...

  15. Epidemiología de la rabia canina en colombia

    OpenAIRE

    2011-01-01

    Objetivo Se realizó un estudio epidemiológico ecológico para describir la tendencia de la rabia canina desde 1976-2006 y explorar posibles factores relacionados con su presentación en Colombia, Metodología Las variables fueron recolectadas mediante un cuestionario aplicado a los responsables del programa en cada departamento y  mediante fuentes de información oficiales nacionales. Se calculó la incidencia de la rabia canina entre 2001-2006. Se emplearon razones de tasas de incidencia y prueba...

  16. Contaminación Enterobacteriana del Guarapo de una Fábrica de Cochabamba, en Fermentación Normal y Fermentación Flemosa

    OpenAIRE

    2009-01-01

    El guarapo es una bebida alcohólica que sigue la vía de fermentación y un desvío del mismo resulta en guarapo deconsistencia flemosa. La presencia de enterobacterias (entéricas fecales y la E. coli) son indicadores de contaminacióny tienen relación con los grupos tifoide-paratifoide. El objetivo de la investigación fue determinar la contaminaciónenterobacteriana presente en el guarapo en fermentación normal y en fermentación de consistenciaflemosa en muestras recolectadas en una fábrica de la...

  17. Amigos y amantes: los valores relativos de trueque de diferentes tipos de compañeros en el intercambio social

    OpenAIRE

    Figueredo, Aurelio José; Kirsner, Beth R.; Tal, Ilanit

    2011-01-01

    Se utilizó el  Inventario de Valor como Pareja  (IVP) en talleres  paralelos  titulados  “La Racionalidad del romance” con muestras independientes recolectadas en cuatro sitios distintos: (1) Tucson, Arizona, Estados Unidos (n = 71), (2) Hermosillo, Sonora, México (n = 56), (3). Ciudad de México, Distrito Federal, México  (n = 39), y  (4) San José, Costa Rica (n = 77). Cada participante contestó un cuestionario anónimo y confidencial que incluía preguntas sobre su percepción de su propio “Val...

  18. Ciencia y arte en la ilustración científica

    OpenAIRE

    Simmons, John; Snider, Julianne

    2009-01-01

    "Ciencia y Arte en la Ilustración Científica" es una publicación que narra la forma en que "las colecciones modernas de historia natural se desarrollaron en los gabinetes o armarios de curiosidades del Renacimiento en Europa. Las colecciones en los primeros gabinetes fueron recolectadas con la intención de buscar orden en el caos de la naturaleza. Durante el Renacimiento, Europa estaba sufriendo cambios inimaginables, y los sistemas existentes de clasificación y de orden no fueron adecuados p...

  19. Basidiomicetos resupinados de Costa Rica. Especies nuevas O raras de Atractiellales (Auriculariales s.l.), Exidiaceae, Sirobasidiaceae y Tremellaceae

    OpenAIRE

    Kisimova-Horovitz, Liuba; Oberwinkler, Franz; Gómez P, Luis D

    2015-01-01

    Se comunica la presencia en Costa Rica de los siguientes hongos basidiomicetos resupinados: Exidiopsis mucedinea. Helicogloea aurea Baker que hasta ahora solo se conocía del holotipo panameño, Heterochaete vitrea especie nueva, Occultifur intemus, originalmente descrita de Tahiti, Saccoblastia sphaerospora MBlIer, descrita en 1895 de Brasil y desde entonces no recolectada. Se propone esa especie como especie típica del género Saccoblastia y se propone la colección costarricense como neotipo, ...

  20. Influencia de la radiación solar y del amonio sobre la acumulación de sustancias antioxidantes en macroalgas marinas cultivadas en un sistema de biofiltración

    OpenAIRE

    Güenaga Unzetabarrenechea, Leire

    2011-01-01

    Programa de doctorado de Gestión de recursos vivos marinos y medioambiente [ES] El presente trabajo aborda el estudio de la acumulación de sustancias antioxidantes en macroalgas tanto recolectadas del medio natural como cultivadas, de forma intensiva, en un sistema de biofiltración de efluentes provenientes del cultivo de peces (IMTA). Se analizaron los efectos de las condiciones de cultivo, principalmente relacionadas con la radiación solar y el aporte de nutrientes, sobre el crecimiento ...

  1. Ciencia y arte en la ilustración científica

    OpenAIRE

    Simmons, John; Snider, Julianne

    2009-01-01

    "Ciencia y Arte en la Ilustración Científica" es una publicación que narra la forma en que "las colecciones modernas de historia natural se desarrollaron en los gabinetes o armarios de curiosidades del Renacimiento en Europa. Las colecciones en los primeros gabinetes fueron recolectadas con la intención de buscar orden en el caos de la naturaleza. Durante el Renacimiento, Europa estaba sufriendo cambios inimaginables, y los sistemas existentes de clasificación y de orden no fueron adecuados p...

  2. Caracterización del valor nutritivo de cinco especies de leguminosas del género Lupinus.

    OpenAIRE

    Pablo Pérez, Maricela

    2013-01-01

    El objetivo del presente estudio fue conocer el potencial nutricional para la alimentación animal de cinco especies de Lupinus (L. montanus, L. exaltatus, L. campestris, L. hintonii, y Lupinus sp.). Plantas completas en floración (componente follaje) y fructificación (componentes: vainas y semillas) fueron recolectadas en la Región de Valles y Libres del Serdán, Puebla, durante julio y agosto de 2010, a una altitud entre 2486 y 3442 m. Los análisis realizados por componente fueron proteína cr...

  3. Alteraciones citológicas de la mucosa gingival por la aplicación de un blanqueador a base de peróxido de carbamida

    OpenAIRE

    Vega Florez, Juan Maximiliano; Chu Morales, María del Pilar

    2005-01-01

    Determina alteraciones citológicas de la mucosa bucal por la aplicación de un blanqueador a base de peróxido de carbamida. Un total de 45 muestras fueron recolectadas de la mucosa gingival antes (15 muestras), durante (15 muestras) y después (15 muestras) de la aplicación del agente blanqueador, para lo cual se empleó la técnica de frotis. Las muestras dialógicas fueron analizadas bajo los criterios de inflamación basada en la presencia o ausencia de PMN, alte...

  4. Entrepreneurship as re-sourcing

    DEFF Research Database (Denmark)

    Korsgaard, Steffen; Anderson, Alistair; Gaddefors, Johan

    Objectives The purpose of this paper is to re-examine the concept of entrepreneurship in light of the current financial and environmental crisis and its socio-spatial impact. Building on Hudson’s analysis of production in late-capitalist societies, we identify problems inherent in the dominant...... opportunistic image of the entrepreneur as a profit-oriented individual that discovers and exploits opportunities. In order to address these problems we create a “new image” of entrepreneurship that focuses on “re-sourcing”. Prior Work The paper builds from a neo-marxist analysis of late-capitalist production...... by Ray Hudson. According to Hudson the task of creating sustainable economic development requires a critical re-appraisal of the economy, productivity, development, to which we propose adding entrepreneurship. Hudson identifies important problems with current patterns of production including its lack...

  5. Geologic map of the Cochiti Dam quadrangle, Sandoval County, New Mexico

    Science.gov (United States)

    Dethier, David P.; Thompson, Ren A.; Hudson, Mark R.; Minor, Scott A.; Sawyer, David A.

    2011-01-01

    The Cochiti Dam quadrangle is located in the southern part of the Española Basin and contains sedimentary and volcanic deposits that record alluvial, colluvial, eolian, tectonic and volcanic processes over the past seventeen million years. The geology was mapped from 1997 to 1999 and modified in 2004 to 2008. The primary mapping responsibilities were as follows: Dethier mapped the surficial deposits, basin-fill sedimentary deposits, Miocene to Quaternary volcanic deposits of the Jemez volcanic field, and a preliminary version of fault distribution. Thompson and Hudson mapped the Pliocene and Quaternary volcanic deposits of the Cerros del Rio volcanic field. Thompson, Minor, and Hudson mapped surface exposures of faults and Hudson conducted paleomagnetic studies for stratigraphic correlations. Thompson prepared the digital compilation of the geologic map.

  6. Regional contamination versus regional dietary differences: Understanding geographic variation in brominated and chlorinated contaminant levels in polar bears

    Science.gov (United States)

    McKinney, M.A.; Letcher, R.J.; Aars, J.; Born, E.W.; Branigan, M.; Dietz, R.; Evans, T.J.; Gabrielsen, G.W.; Muir, D.C.G.; Peacock, E.; Sonne, C.

    2011-01-01

    The relative contribution of regional contamination versus dietary differences to geographic variation in polar bear (Ursus maritimus) contaminant levels is unknown. Dietary variation between Alaska Canada, East Greenland, and Svalbard subpopulations was assessed by muscle nitrogen and carbon stable isotope (?? 15N, ?? 13C) and adipose fatty acid (FA) signatures relative to their main prey (ringed seals). Western and southern Hudson Bay signatures were characterized by depleted ?? 15N and ??13C, lower proportions of C20 and C22 monounsaturated FAs and higher proportions of C18 and longer chain polyunsaturated FAs. East Greenland and Svalbard signatures were reversed relative to Hudson Bay. Alaskan ?? 2011 American Chemical Society.

  7. Piping Flexibility

    Science.gov (United States)

    1978-01-01

    A NASA computer program aids Hudson Engineering Corporation, Houston, Texas, in the design and construction of huge petrochemical processing plants like the one shown, which is located at Ju'aymah, Saudi Arabia. The pipes handling the flow of chemicals are subject to a variety of stresses, such as weight and variations in pressure and temperature. Hudson Engineering uses a COSMIC piping flexibility analysis computer program to analyze stresses and unsure the necessary strength and flexibility of the pipes. This program helps the company realize substantial savings in reduced engineering time.

  8. Optical Shared Memory System Demonstration Model

    Science.gov (United States)

    1990-07-01

    Interconnects for VLSI," Opt. Eng., vol. 25, no. 10, pp. 1109 -1118 (October 1986). 10 J.C. Kirsch , D.G. Gregory, T.D. Hudson, D.J. Lanteigne, "Design of...34 Opt. Eng., vol. 25, no. 10, pp. 1109 -1118 (October 1986). 17 J.C. Kirsch , D.G. Gregory, T.D. Hudson, D.J. Lanteigne, "Design of Photopolymer...lator. Fir thl riif,diflah tra:.lpar’lt leIr,-h.- , irv tj..d. uk fir tie i a r S=rt ) Per ! mo dulator partially rellht-iin :irrors, aoll elcctrodeus

  9. Sources of inorganic and monomethyl mercury to high and sub Arctic marine ecosystems

    Science.gov (United States)

    Kirk, Jane Liza

    Monomethyl mercury (MMHg), a toxic and bioaccumulative form of Hg, is present in some Canadian high and sub Arctic marine mammals at concentrations high enough to pose health risks to Northern peoples using these animals as food. To quantify potentially large sources of Hg to Arctic marine ecosystems, we examined several aspects of Hg cycling in the Canadian Arctic Archipelago (CAA) and Hudson Bay. Firstly, we quantified net Hg inputs to Hudson Bay from atmospheric Hg depletion events (AMDEs). During AMDEs, gaseous elemental Hg(0) (GEM), which is present in the Arctic atmosphere at global background concentrations, is oxidized to inorganic Hg(II) species that deposit to snowpacks. By simultaneously monitoring Hg in the atmosphere and in snowpacks of western Hudson Bay, we demonstrated that most of the Hg(II) deposited during AMDEs is rapidly (photo)reduced and emitted to the atmosphere. Secondly, we examined Hg speciation in marine waters of the CAA and Hudson Bay. We found high concentrations of MMHg and dimethyl Hg (DMHg; a toxic, gaseous form of Hg) in deep marine waters, where they are likely produced from Hg(II). Arctic marine waters were also found to be a substantial source of DMHg and GEM to the atmosphere. Thirdly, we quantified Hg exports to Hudson Bay from two major rivers, the Nelson and the Churchill, which have been altered for hydroelectric power production. When landscapes are inundated during river diversion or reservoir creation, microbial production of MMHg is stimulated in flooded soils. Newly produced MMHg can then be exported to downstream waterbodies. We found that annual inputs of total Hg (THg; includes both Hg(II) and MMHg) to Hudson Bay from combined Nelson and Churchill River discharge were comparable to inputs from AMDEs. MMHg inputs from river discharge are, however, ˜13 times greater than those from annual snowmelt of Hudson Bay snowpacks. Finally, although combined river and AMDE Hg inputs may account for a large portion of the THg

  10. Calidad del agua de la niebla captada artificialmente en la microcuenca del río Pixquiac, Veracruz, México: resultados preliminares

    Directory of Open Access Journals (Sweden)

    Rodolfo Jofre-Meléndez

    2015-01-01

    Full Text Available Con el fin de determinar si el agua recolectada artificialmente de la niebla en la zona central montañosa del Estado de Veracruz es apta para el consumo humano, se realizó un muestreo preliminar de enero a marzo del año 2010, periodo de mayor frecuencia de nieblas, para analizar sus aspectos físicos, químicos y biológicos y evaluar su calidad. Se encontró que el agua contiene metales pesados como el mercurio, organismos coliformes y cantidades altas de nitrógeno amoniacal, pero esto se puede solucionar aplicando un tratamiento de saneamiento para uso humano con un costo de 0.00341 USD L -1 que no incluye mano de obra ni infraestructura. Se discuten las causas que pueden originar su contaminación y se concluye que el agua recolectada de la niebla no es adecuada para el consumo humano, pero sí para la agricultura.

  11. EFECTO DE EXTRACTOS ACUOSOS DE Helianthus annuus Lin. SOBRE EL CRECIMIENTO DE Solanum lycopersicum Lin.

    Directory of Open Access Journals (Sweden)

    Yaniuska González Perigó

    2015-01-01

    Full Text Available Con el objetivo de determinar el efecto de extractos acuosos de Helianthus annuus Lin. sobre el crecimiento de Solanum lycopersicum Lin, se tomaron muestras de raíz y hojas de plantas recolectadas de un sistema de policultivo ubicado en un agroecosistema montañoso. Los extractos acuosos de girasol se obtuvieron a partir de raíz y hojas de plantas recolectadas durante dos años. Se evaluaron los efectos de estos extractos sobre la germinación, longitud de la radícula y del hipocótilo de semillas de tomate certificadas, para ello se ejecutaron nueve tratamientos con cuatro repeticiones dispuestos en placas Petri. Los extractos de raíz de girasol a los 15, 30 y 45 días y de hojas a los 75 y 90 días de desarrollo inhibieron la germinación de las semillas de tomate y el crecimiento de la radícula y el hipocótilo. Los extractos de raíz de girasol con 75 y 90 días, estimularon el crecimiento de la radícula y del hipocótilo del tomate. Estos resultados demuestran que el girasol produce sustancias químicas que inhiben el crecimiento del tomate y no se recomienda asociar estos dos cultivos de forma simultánea.

  12. Free trade in North America

    Energy Technology Data Exchange (ETDEWEB)

    Adam, P.

    1995-07-01

    If Mexico, the United States and Canada can create a unified hydrocarbons market all the way from Hudson Bay to the Yucatan, there could be benefits all round. But the transition will involve major changes in attitude on both sides of the Rio Grande River. (author)

  13. 78 FR 5179 - Granting of Request for Early Termination of the Waiting Period Under the Premerger Notification...

    Science.gov (United States)

    2013-01-24

    ....; Hudson Ferry Capital, L.P.; American Capital, Ltd. 20130273 G KIA VIII (Power), L.P.; Huntsman Gay Capital Partners Fund, L.P.; KIA VIII (Power), L.P. 20130274 G Sun Pharmaceutical Industries Ltd.; DUSA..., L.P.; Anderson Perforating, Ltd.; Cerberus Institutional Partners, L.P. 20130353 G KIA VIII (WAC),...

  14. Strategic Studies Quarterly. Volume 4, Number 3, Fall 2010

    Science.gov (United States)

    2010-01-01

    overestimating successes, of which there were many during 2007 and 2008. Bogota has more to do, and Colombia’s president will soon complete his second and final...Hudson or Potomac rivers but rather in Europe at the George C. Marshall European Center for Security Studies in Garmisch, Germany. Unsurprisingly

  15. Is Form-Focused Vocabulary Instruction Worthwhile?

    Science.gov (United States)

    Mason, Beniko; Krashen, Stephen

    2004-01-01

    Hearing stories can result in considerable incidental vocabulary development, for both first and second language acquisition (e.g. Elley 1992; Robbins and Ehri 1994; Senechal, LeFevre, Hudson and Lawson 1996). It has also been claimed, however, that direct instruction is more effective than incidental vocabulary acquisition and that combining both…

  16. Siim Nestor kuulas, nautis ja õppis funk'i / Siim Nestor

    Index Scriptorium Estoniae

    Nestor, Siim, 1974-

    2003-01-01

    Heliplaatidest: Roy Ayers Ubiquity "A Tear To A Smile", The Undisputed Truth "Face to Face With the Truth", Love Unlimited "In Heat", Gloria Scotti "What Am I Gonna Do", Bohannon "Summertime Groove", "Nice and Soulful", "One Way featuring Al Hudson", Cameo "Ugly Ego", The Gap Band "The Gap Band"

  17. 75 FR 28593 - Board on Coastal Engineering Research

    Science.gov (United States)

    2010-05-21

    ... Department of the Army; Corps of Engineers Board on Coastal Engineering Research AGENCY: Department of the... Committee: Board on Coastal Engineering Research. Date of Meeting: June 22-24, 2010. Place: Hudson Ballroom... development of research projects in consonance with the needs of the coastal engineering field and the...

  18. Smith Assists in Superstorm Sandy Relief Efforts | Poster

    Science.gov (United States)

    By Cathy McClintock, Guest Writer It should have been routine by now for a 30-year volunteer firefighter/ emergency medical technician from Thurmont, Md., but it wasn’t. That first night, as Ross Smith, IT security, looked across the Hudson River from Jersey City, N.J., he saw an unusually dark New York skyline.

  19. The Genus Antirrhinum (Snapdragon): A Flowering Plant Model for Evolution and Development

    OpenAIRE

    sprotocols

    2014-01-01

    Authors: Andrew Hudson, Joanna Critchley and Yvette Erasmus Corresponding author ([]()) ### INTRODUCTION The *Antirrhinum* species group comprises approximately 20 morphologically diverse members that are able to form fertile hybrids. It includes the cultivated snapdragon *Antirrhinum majus*, which has been used as a model for biochemical and developmental genetics for more than 75 yr. The research infrastructure for *A. majus*, together...

  20. 78 FR 32381 - Combined Notice of Filings #1

    Science.gov (United States)

    2013-05-30

    ... Cogeneration, Limited Partnership, Edgecombe Genco, LLC, EIF Hudson, LLC, Logan Generating Co L.P., RC Cape May Holdings, LLC, Richland-Stryker Generation LLC, Scrubgrass Generating Company, L.P., Spruance Genco, LLC...., Edgecombe Genco, LLC. Description: Notice of non-material change status of EIF and Starwood MBR...

  1. 76 FR 62213 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List the Mohave...

    Science.gov (United States)

    2011-10-06

    ... white side stripe and a black band on the underside of the tail near the tip (Ingles 1965, pp. 169-171... a larger body than the Mohave ground squirrel (Ingles 1965, p. 171). However, its skull is... temperature (Bartholomew and Hudson 1960, pp. 195-197), and a reduced heart rate (Ingles 1965, p. 177). Mohave...

  2. Role of Acetylcholinesterase on the Structure and Function of Cholinergic Synapses: Insights Gained from Studies on Knockout Mice

    Science.gov (United States)

    2011-01-01

    and by the swelling of mitochondrial and endoplasmic reticular membranes (Laskowski et al. 1977; Adler et al. 1992). These were not observed in the...Adler M, Hinman D, Hudson CS (1992) Role of muscle fasciculations in the generation of myopathies in mammalian skeletal muscle. Brain Res Bull 29:179

  3. Consumer’s Resource Handbook (5th Edition)

    Science.gov (United States)

    1990-01-01

    President 3030 Cornwallis Road Sidney, NE 69160 Customer Services Research Triangle Park, NC 27709 1(800) 237-8888 (toll free) British Airways (919) 248-3000...4010 Hudson County Municipal Building County Administration Building Bellevll.t, NJ 07109 Ms. Andrea Filkowitz 595 Newark Avenue (201) 450-3398

  4. Bibliography

    NARCIS (Netherlands)

    NN,

    1995-01-01

    AGUIRRE-HUDSON, B. & P.A. WOLSELEY. 1994. Bibliography of South-east Asian Lichenology 1810-1992. J. Hattori Bot. Lab. 76: 313-350. GALLOWAY, D.J., M.W. SAMSUDIN & A. LATIFF. 1994. A bibliography of Malaysian lichenology. Mal. Appl. Biol. 22: 215-221.

  5. Act Up-Paris: French Lessons

    Science.gov (United States)

    Nakayama, Thomas K.

    2012-01-01

    The francophone world has always been at the center of the HIV/AIDS epidemic. From the mythical (French Canadian) "patient zero," Gaetan Dugas, to Rock Hudson's flight to Paris for medical treatment and the blaming of Haiti for AIDS, as well as the close relationships between Belgian and French and their former African colonies, underscores the…

  6. Toward a theory of partnership as context for a theory of leisure

    Science.gov (United States)

    Kim Uhlik

    2008-01-01

    The field of leisure studies has been developing a body of theory since the late 1960s, but construction of an overarching, unified theory of leisure remains an elusive goal (Bedini and Wu, 1994; Brown, Dyer, & Whatey, 1973; Burdge, 1983; Edginton, Hudson, & Lankford, 2001; Henderson, 1994; Henderson, Presley & Bialeschki, 2004; Hendricks & Burdge, 1972...

  7. The Manufacturing Industry

    Science.gov (United States)

    2005-06-01

    the organization.”92 Dr. Eliyahu Goldratt designed the most popular system, based on his “Theory of Constraints.” He emphasized the importance of...Exploring Advanced Manufacturing Technologies. New York, NY, Industrial Press Inc. Goldratt , Eliyahu M. and Robert E. Fox. The Race. Croton-on-Hudson

  8. Demonstrating the Effects of Shop Flow Process Variability on the Air Force Depot Level Reparable Item Pipeline

    Science.gov (United States)

    1992-09-01

    DO41). AFLCR 57-4. Wright-Patterson AFB OH: HQ AFLC, 29 April 1983. 137 12. Goldratt , Eliyahu M. and Jeff Cox. The Goal. Croton-On-Hudson NY: North...manufacturing process (14:411). Goldratt and Cox give another example of the same impact of variability in their book The Goal when they demonstrated what

  9. An Assessment of the Effectiveness of Engineering Management of the Royal Australian Air Force F/RF-111C Weapon System

    Science.gov (United States)

    1990-09-01

    Goldratt , Eliyahu M. and Robert E. Fox. The Race. Croton-on-Hudson NY: North River Press Inc, 1986. 16. Hau, Chris, Wing Commander (retired), RAAF...organization’s goals and objectives. 32 Recall that goals define and state the purpose of an organization. Goldratt has a very straightforward concept of the

  10. Procedural Due Process Rights for Parents under the IDEA.

    Science.gov (United States)

    Osborne, Allan G., Jr.

    1995-01-01

    This analysis of parents' procedural due process rights under the Individuals with Disabilities Education Act examines the 1982 case of Hendrick Hudson Central School District Board of Education versus Rowley and reviews principles concerning parental rights, parental notification, procedural errors, the Individualized Education Program conference…

  11. American War for Independence, 1775-1783: Revolution or Civil War?

    Science.gov (United States)

    2010-08-04

    chronic malnutrition , and much of the epidemic disease that plagued Europe at the time. Third, there was a very high rate of immigration after 1700. It...crest and the Mississippi River, stretching from the Gulf of Mexico to Hudson’s 13 Bay. Since the late 18th century, it has been argued that the

  12. When Do Memory Limitations Lead to Regularization? An Experimental and Computational Investigation

    Science.gov (United States)

    Perfors, Amy

    2012-01-01

    The Less is More hypothesis suggests that one reason adults and children differ in their ability to learn language is that they also differ in other cognitive capacities. According to one version of this hypothesis, children's relatively poor memory may make them more likely to regularize inconsistent input (Hudson Kam & Newport, 2005, 2009). This…

  13. Bernstein's Theory of Pedagogic Discourse: Linguistics, Educational Policy and Practice in the UK English/Literacy Classroom

    Science.gov (United States)

    Clark, Urzsula

    2005-01-01

    In "The English Patient: English Grammar and teaching in the Twentieth Century", Hudson and Walmsley (2005) contend that the decline of grammar in schools was linked to a similar decline in English universities, where no serious research or teaching on English grammar took place. This article argues that such a decline was due not only to a lack…

  14. 33 CFR 151.1514 - Ballast water management alternatives under extraordinary conditions.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Ballast water management... SUBSTANCES, GARBAGE, MUNICIPAL OR COMMERCIAL WASTE, AND BALLAST WATER Ballast Water Management for Control of Nonindigenous Species in the Great Lakes and Hudson River § 151.1514 Ballast water management alternatives...

  15. 33 CFR 151.1510 - Ballast water management.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Ballast water management. 151..., AND BALLAST WATER Ballast Water Management for Control of Nonindigenous Species in the Great Lakes and Hudson River § 151.1510 Ballast water management. (a) The master of each vessel subject to this...

  16. District heating and cooling systems for communities through power plant retrofit distribution network. Phase 2. Final report, 1 March 1980-31 January 1984. Volume VII. Appendix C

    Energy Technology Data Exchange (ETDEWEB)

    1984-01-31

    This volume contains: Hudson No. 2 Limited Retrofit Cost Estimates provided by Stone and Webster Engineering Corp. (SWEC); backup data and basis of estimate for SWEC Heater Plant and Gas Turbine Plant (Kearny No. 12) cost estimates; and Appendices - Analysis of Relevant Tax Laws.

  17. minimum thresholds of monte carlo cycles for nigerian empirical ...

    African Journals Online (AJOL)

    2012-11-03

    Nov 3, 2012 ... and the compressive strain at the top of the sub-grade. .... 1, 2005, pp 44-51. 2. Lemer, A. C., and Moavenzadeh, F. Reliability of ... Darter, M. I., and Hudson, W.R. Probabilistic Design ... Paper presented at the 7th Con-.

  18. Minding the Brain

    Science.gov (United States)

    Hruby, George G.

    2011-01-01

    In literacy education, neuroscience research has been alluded to increasingly in work meant to substantiate cognitive models of the reading process related to text decoding and its instruction. As a result, this material tends to focus on early reading or reading disability and dyslexia (e.g., Hudson, High, & Al Otaiba, 2007; Shaywitz, 2003). It…

  19. 78 FR 67116 - Aluminum Extrusions From the People's Republic of China: Notice of Partial Rescission of...

    Science.gov (United States)

    2013-11-08

    ... North Fenghua Aluminum Ltd. On August 26, Shenzhen Hudson Technology Development Co., Ltd. withdrew its... Administrative Review and Extension of Time Limit for the Preliminary Results of Antidumping Duty Administrative...). Assessment The Department will instruct U.S. Customs and Border Protection (CBP) to assess CVDs on...

  20. Reference: SORLIP1AT [PLACE

    Lifescience Database Archive (English)

    Full Text Available SORLIP1AT Hudson ME, Quail PH. Identification of promoter motifs involved in the ne...twork of phytochrome A-regulated gene expression by combined analysis of genomic sequence and microarray dat...a. Plant Physiol. 133: 1605-1616 (2003) in silico; over-represented motif; PubMed: 14681527 ...

  1. Reference: SORLIP2AT [PLACE

    Lifescience Database Archive (English)

    Full Text Available SORLIP2AT Hudson ME, Quail PH. Identification of promoter motifs involved in the ne...twork of phytochrome A-regulated gene expression by combined analysis of genomic sequence and microarray dat...a. Plant Physiol. 133: 1605-1616 (2003) in silico; over-represented motif; PubMed: 14681527 ...

  2. Reference: SORLREP4AT [PLACE

    Lifescience Database Archive (English)

    Full Text Available SORLREP4AT Hudson ME, Quail PH. Identification of promoter motifs involved in the n...etwork of phytochrome A-regulated gene expression by combined analysis of genomic sequence and microarray da...ta. Plant Physiol. 133: 1605-1616 (2003) in silico; over-represented motif; PubMed: 14681527 ...

  3. The Quantum Black-Scholes Equation

    CERN Document Server

    Accardi, Luigi

    2007-01-01

    Motivated by the work of Segal and Segal on the Black-Scholes pricing formula in the quantum context, we study a quantum extension of the Black-Scholes equation within the context of Hudson-Parthasarathy quantum stochastic calculus,. Our model includes stock markets described by quantum Brownian motion and Poisson process.

  4. Siim Nestor kuulas, nautis ja õppis funk'i / Siim Nestor

    Index Scriptorium Estoniae

    Nestor, Siim, 1974-

    2003-01-01

    Heliplaatidest: Roy Ayers Ubiquity "A Tear To A Smile", The Undisputed Truth "Face to Face With the Truth", Love Unlimited "In Heat", Gloria Scotti "What Am I Gonna Do", Bohannon "Summertime Groove", "Nice and Soulful", "One Way featuring Al Hudson", Cameo "Ugly Ego", The Gap Band "The Gap Band"

  5. 75 FR 17767 - National Register of Historic Places; Notification of Pending Nominations and Related Actions

    Science.gov (United States)

    2010-04-07

    ... of Borough Park, 4802 15th Ave, Brooklyn, 10000224 New York County Elmendorf Reformed Church, 171 E... County Lower Dock Hill Road Stone Arch Bridge (Stone Arch Bridges of the Village of Cornwall-on-Hudson..., Brookings, 97001047 PENNSYLVANIA Chester County Bridge in New Garden Township, Landenberg Rd. over White...

  6. CREATIVE TEACHING WITH TAPE.

    Science.gov (United States)

    Minnesota Mining and Mfg. Co., St. Paul. Revere-Mincom Div.

    SOME CLASSROOM APPLICATIONS OF THE TAPE RECORDER ARE DISCUSSED, WITH SECTIONS ON THE CARE, USE, AND SELECTION OF TAPE RECORDING EQUIPMENT ACCESSORIES. THIS DOCUMENT IS AVAILABLE FROM WOLLENSAK-3M COMPANY ATTENTION--CREATIVE TEACHING WITH TAPE, 2501 HUDSON ROAD, ST. PAUL, MINNESOTA 55119. (MS)

  7. 76 FR 20524 - Anchorage Regulations; Port of New York

    Science.gov (United States)

    2011-04-13

    ..., Sandy Hook Pilots Association, and U.S. Army Corps of Engineers New York District was held on August 31.... 19 West) from the eastern half of the Hudson River to the western half closer to the New Jersey shore... maintain the channel for commercial vessel traffic intending to access New Jersey waterfront and shore...

  8. Walruses in West Greenland: Where do they belong?

    DEFF Research Database (Denmark)

    Born, E. W.; Andersen, L. W.; Dietz, R.

    identity of walruses in CWG remains undetermined. Genetic studies indicate that CWG-walruses have only little exchange with walruses in Northwest and East Greenland. However, a comparison between walruses from Hudson Strait (HS) in Canada) and CWG indicated a source (HS)-sink (CWG) relationship between...

  9. John Rae (1813-93): explorer of the Canadian Arctic, the great pedestrian.

    Science.gov (United States)

    Loosmore, Brian

    2009-11-01

    Born and raised in the Orkney Islands, Dr John Rae joined the Hudson's Bay Company and rose to be Chief Factor. Unusually tough and intelligent, he explored much of northern Canada, mapping the north eastern shore and finding controversial evidence of the lost Franklin expedition of 1845. A talented botanist, geologist, anthropologist and cartographer, he was northern Canada's most distinguished explorer.

  10. 77 FR 73676 - Notice Pursuant to the National Cooperative Research and Production Act of 1993; National...

    Science.gov (United States)

    2012-12-11

    ... Technology Center, St. Charles, MD; Kranze Technology Solutions, Inc., Prospect Heights, IL; Meggitt (San Juan Capistrano), Inc., San Juan Capistrano, CA; TenCate Advanced Composites, Morgan Hill, CA; and... Corporation, Hudson, WI; Synepsys Technologies Inc., Clearwater, FL; and The ENSER Corporation, Pinellas...

  11. Are Pilots Graduating SUPT Today Meeting AMC’s Current and Future Needs

    Science.gov (United States)

    2012-02-05

    airframe is slightly larger and the AF claims it is 70 percent newer than the previous versions. The cockpit is composed of a digital instrumentation...consideration identified by NASA, is human factors training. The ditching of US Airways Airbus A320 in the Hudson River following a bird strike and

  12. Arcwise Connectedness of Solution Sets of Lipschitzian Quantum Stochastic Differential Inclusions

    Science.gov (United States)

    Dikko, D. A.; Ayoola, E. O.

    2017-03-01

    In the framework of the Hudson - Parthasarathy quantum stochastic calculus, we employ some recent selection results to prove that the function space of the matrix elements of solutions to quantum stochastic differential inclusion (QSDI) is arcwise connected both locally and globally.

  13. 小阳春(1777年)

    Institute of Scientific and Technical Information of China (English)

    小月(选译)

    2012-01-01

    We first encountered Indian summer in the essay, A Snow Storm as It Affects the American Farmer, written sometime in 1770s by a Frenchman turned American farmer, J. Hector St. John de Crrvecoeur. Here he describes the approach of winter in the Hudson valley:

  14. Use of a Statement of Test Taker Rights in Employment Testing.

    Science.gov (United States)

    Moreland, Kevin L.

    Professionals often seem to view guidelines, standards, and the like, not to mention legal mandates, as adding to their work load. It is argued that a widely promulgated set of test taker rights would actually make the work of personnel selection professionals easier. The California court case Soroka v. Dayton-Hudson Corporation, in which test…

  15. Caught in the Net: Lessons from the Financial Crisis for a Networked Future

    Science.gov (United States)

    2009-06-01

    Theory and Empirical Work,” The Jour- nal of Finance , 25 (May 1970); Burton G. Malkiel, “The Efficient Market Hypothesis and Its Critics,” Jour- nal of...January 1997; Kwak; Benoit B. Mandelbrot and Richard L. Hudson, The (Mis)Behavior of Markets: A Fractal View of Risk, Ruin, and Reward (New York: Basic

  16. Popmuusika / Margus Haav

    Index Scriptorium Estoniae

    Haav, Margus, 1969-

    2006-01-01

    Uutest heliplaatidest Erasure "Union Street", The Hacker "A.n.d.N.O.W.", Nekta "Water The Flowers", Nickodemus & Mariano "Turntables On The Hudson Sir Remix", Jussi Syren & The Groundbreakers "Heartagrass", Dirty Pretty things "Waterloo To Anywhere", The Kooks "Inside In inside Out"

  17. Enhancing Technology-Mediated Communication: Tools, Analyses, and Predictive Models

    Science.gov (United States)

    2007-09-01

    the home (see, for example, Nagel, Hudson, & Abowd, 2004), in social Chapter 2: Background 17 settings (see Kern, Antifakos, Schiele ...on Computer Supported Cooperative Work (CSCW 2006), pp. 525-528 ACM Press. Kern, N., Antifakos, S., Schiele , B., & Schwaninger, A. (2004). A model

  18. The Sperry 1100/60 Mainframe Computer Development of a User’s Handbook for Supply Personnel

    Science.gov (United States)

    1989-09-01

    Howard , Maj Patrick M., Chief, Information and Systems Division. Interview. AFLMC/LSGI, Gunter AFB AL, 20 January 1989. 46. Hudson, Lt Col John, Chief...Specialist (645XZ) On-the-Jot Training Package, Revision 1. HQ/USAFE, 20 May 88. 74 118. Zinn , SMSgt, Maragenient and Systems Supervisor. Telephone Interview

  19. Act Up-Paris: French Lessons

    Science.gov (United States)

    Nakayama, Thomas K.

    2012-01-01

    The francophone world has always been at the center of the HIV/AIDS epidemic. From the mythical (French Canadian) "patient zero," Gaetan Dugas, to Rock Hudson's flight to Paris for medical treatment and the blaming of Haiti for AIDS, as well as the close relationships between Belgian and French and their former African colonies,…

  20. 33 CFR 151.1504 - Definitions.

    Science.gov (United States)

    2010-07-01

    ... adverse impacts to the structure and function of an ecosystem, minimize adverse effects on non-target organisms and ecosystems, and that emphasize integrated pest management techniques and non-chemical measures... Ballast Water Management for Control of Nonindigenous Species in the Great Lakes and Hudson River §...

  1. The Dependency Structure of Coordinate Phrases: A Corpus Approach

    Science.gov (United States)

    Temperley, David

    2005-01-01

    Hudson (1990) proposes that each conjunct in a coordinate phrase forms dependency relations with heads or dependents outside the coordinate phrase (the "multi-head" view). This proposal is tested through corpus analysis of Wall Street Journal text. For right-branching constituents (such as direct-object NPs), a short-long preference for conjunct…

  2. Military Strategy of Global Jihad

    Science.gov (United States)

    2007-03-23

    Che in Bolivia (San Salvador: n.p., 1968), 244-246, quoted in Donald C. Hodges, The Legacy of Che Guevara: A Documentary Study (London: Thames and... Hudson , 1977), 101. 61 The Political Commission of the Communist Party of El Salvador, 100-101. 62 The global jihadis face a particular challenge in

  3. Interpreting Airpower: American Observation of the Battle of Britain

    Science.gov (United States)

    2010-06-01

    engine Lockheed Hudsons and six Navy Gloster biplanes. The American‟s queried whether the RAF typically launched fighter escort in support of...Americans were in the middle of the air raid while “bombs could be heard and fire of some intensity started to [the] East along [the] Thames . Later

  4. Overcoming the Odds A Comparison of the Ninth and Tenth Military Districts During the Final Campaigns of the War of 1812

    Science.gov (United States)

    2007-11-02

    Division at the Battle of the Thames in October 1813. Therefore, it is outside the scope of the research question and will not be examined. Figure 1...the Hudson to Albany but also procured supplies in the New York area. Tentage and camp equipment for the troops on the Niagara were therefore drawn

  5. The Atlas of the Real World Mapping the Way We Live Daniel Dorling, Mark Newman, Anna Barford

    Directory of Open Access Journals (Sweden)

    Nedjeljko Frančula

    2011-06-01

    Full Text Available Atlas The Atlas of the Real World – Mapping the Way We Live D. Dorlinga, M. Newmana i A. Barford objavljen je 2008. u izdanju Thames & Hudson, New York. Sastoji se od 366 tematskih karata svijeta svrstanih u šest cjelina i 16 odjeljaka.

  6. Integrated Modeling and Analysis of Physical Oceanographic and Acoustic Processes

    Science.gov (United States)

    2014-09-30

    hydrostatic model, the internal tide raytrace model, and the KdV-type nonhydrostatic wave evolution model. (upper left) A time snapshot of upslope...Jackson [11] showing, in satellite synthetic aperture radar (SAR) data, internal waves traveling northward, which is to the right of Hudson Canyon

  7. The "Why" and "Where" of the Tappan Zee Bridge: A Lesson in Site Location, Physical Geography, and Politics

    Science.gov (United States)

    Mitchell, Jerry T.; Cantrill, Jeremy; Kearse, Justin

    2012-01-01

    Bridges are some of the most majestic features in the American landscape. For classrooms, the bridge serves as an important component of one of the main themes of geography: movement. One bridge, north of Manhattan and crossing the Hudson River, is the Tappan Zee. One aspect that stands out in a way that does not at all appear reasonable: the…

  8. 76 FR 63346 - Environmental Impact Statement, Tappan Zee Bridge/I-287 Corridor Project (Rockland and...

    Science.gov (United States)

    2011-10-12

    ... Administration Environmental Impact Statement, Tappan Zee Bridge/I-287 Corridor Project (Rockland and Westchester... preparing an Environmental Impact Statement (EIS) for the proposed Tappan Zee Bridge/I-287 Corridor project... Port Chester, Westchester County, New York including the Tappan Zee Bridge over the Hudson River....

  9. America’s Targeted Killing Policy: Is it Right? Is it Working?

    Science.gov (United States)

    2013-03-01

    Georgetown University, April 16, 2010), 48-49. 54 Leila Hudson, Colin S. Owens, and David J. Callen , “Drone Warfare in Yemen: Fostering Emirates Through...and Callen , “Drone Warfare in Yemen.” 76 Miller, “Plan for Hunting Terrorists.” 77 Brennan, “The Efficacy and Ethics.” 78 Klaidman, Kill or Capture

  10. The McClellan-Kerr Waterway and Regional Economic Development - Phase II Study.

    Science.gov (United States)

    1985-11-01

    by Walras in the ... late ninteenth century (1954). Recently, Liew (1980), Hudson and Jorgenson (1974, 1976) introduced prices into the computation of...Review of Economics and Statistics, August, 1957. 37. Walras , L., Elements of Pure Economics, (English Edition), George Allen and * Urwin, London, 1954

  11. Regional Economic Development Impact Model: Phase I Study.

    Science.gov (United States)

    1985-11-01

    the technical coefficients were suggested by Walras as early as the late nineteenth century’ [ Walras (33)]. Recently, Hudson and Jorgenson...Economics and Statistics, August, 1957. 33. Walras , L., Elements of Pure Economics, (English Edition), George Allen and Urwin, London, 1954. 6 ,. 69

  12. PLASMA PROTEIN PROFILING AS A HIGH THROUGHPUT TOOL FOR CHEMICAL SCREENING USING A SMALL FISH MODEL

    Science.gov (United States)

    Hudson, R. Tod, Michael J. Hemmer, Kimberly A. Salinas, Sherry S. Wilkinson, James Watts, James T. Winstead, Peggy S. Harris, Amy Kirkpatrick and Calvin C. Walker. In press. Plasma Protein Profiling as a High Throughput Tool for Chemical Screening Using a Small Fish Model (Abstra...

  13. Characterisation and Airborne Deployment of a New Counterflow Virtual Impactor Inlet

    Science.gov (United States)

    2012-06-06

    Twohy et al., 1989; Hudson, 1993; Hallberg et al., 1994, 1998; Ostrom et al., 2000; Sellegri et al., 2003). Aerosol sampling from air- craft has...Heintzenberg, J., and Charlson, R. J.: Virtual impactor, US Patent No. 4,689,052, 1987. Ostrom , E., Noone, K. J., and Pockalny, R. A.: Cloud-droplet

  14. Examining the Effectiveness of Mindfulness Meditation for Chronic Pain Management in Combat Veterans with Traumatic Brain Injury

    Science.gov (United States)

    2013-01-01

    Hudson, J. I., Hess , E. V., Ware, A. E., Fritz, D. A., Auchenbach, M. B., et al. (2004). Family study of fibromyalgia. Arthritis Rheum, 50(3), 944...analysis of the effect on pain and disability. Arthritis Rheum, 48(8), 2207-2213. Weathers FW, Litz BT, Herman DS, Huska JA, Keane TM. (1993). The

  15. Law and Power in the Middle Ages

    DEFF Research Database (Denmark)

    International konferenceantologi med bidrag fra Gerd Althoff, Dominique Bauer, Bruce C Brasington, Charlotte Christensen-Nugues, Michael H Gelting, John Gillingham, Eldbjørg Haug, John Hudson, Brigitte Meijns, Hans Jacob Orning, Anne Irene Riisøy, Matthew Strickland, Jo Rune Ugulen, og Sally N Va...

  16. An exploration of attitudes on sexuality at a northeastern urban university.

    Science.gov (United States)

    Donnelly, J; Donnelly, M; Kittleson, M J; Fogarty, K J; Procaccino, A T; Duncan, D F

    1997-10-01

    This study was conducted to assess the prevalence of scores on homophobia among 104 college students at a northeastern urban university. Participants reported their attitudes regarding homosexuals and homosexual behavior on Hudson and Rickett's Index of Homophobia. The 33 men indicated more negative attitudes about homosexuals and homosexual situations than the 71 women.

  17. 78 FR 16159 - Application Procedures and Criteria for Approval of Providers of a Personal Financial Management...

    Science.gov (United States)

    2013-03-14

    ... restrictive of commercial speech than is necessary to advance the government's interest in consumer protection... commercial speech. See, e.g., Central Hudson Gas & Elec. Corp. v. Public Serv. Comm'n, 447 U.S. 557 (1980) (holding that restrictions on commercial speech must directly advance an important interest and shall be...

  18. Ecotypic variation in Cystoclonium purpureum (Rhodophyta) synchronizes life history events in different regions

    NARCIS (Netherlands)

    Molenaar, F.J; Breeman, Arno; Venekamp, L.A.H.

    1996-01-01

    Temperature and daylength responses were determined in culture for isolates of the red alga Cystoclonium purpureum (Hudson) Batters from Nova Scotia (NS, Canada), Helgoland (HE, Germany), and Roscoff (RO, France). Most isolates survived temperatures of -1.5 degrees/-2 degrees to 23 degrees C, wherea

  19. Popmuusika / Margus Haav

    Index Scriptorium Estoniae

    Haav, Margus, 1969-

    2006-01-01

    Uutest heliplaatidest Erasure "Union Street", The Hacker "A.n.d.N.O.W.", Nekta "Water The Flowers", Nickodemus & Mariano "Turntables On The Hudson Sir Remix", Jussi Syren & The Groundbreakers "Heartagrass", Dirty Pretty things "Waterloo To Anywhere", The Kooks "Inside In inside Out"

  20. Port and Waterways Safety Assessment Workshop Report, New York

    Science.gov (United States)

    2008-09-01

    security zone • Claremont Channel – barge fleeting /mooring area • PST cruise ship terminal area • Anchorage FA 19 in Hudson used for fleeting...Van Kull o Hess Bayonne terminal o New cruise ship terminal in Bayonne when taking on bunkers • Container terminal soundings are not well