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  • 2020-2022  (23)
  • 2015-2019  (91)
  • 1990-1994  (46)
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  • 1
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    Characterizing storm response and recovery using the beach change envelope : Fire Island, New York (2018)
    Elsevier
    Details
    Publication Date: 2022-05-26
    Description: This paper is not subject to U.S. copyright. The definitive version was published in Geomorphology 300 (2018): 189-202, doi:10.1016/j.geomorph.2017.08.004.
    Description: Hurricane Sandy at Fire Island, New York presented unique challenges in the quantification of storm impacts using traditional metrics of coastal change, wherein measured changes (shoreline, dune crest, and volume change) did not fully reflect the substantial changes in sediment redistribution following the storm. We used a time series of beach profile data at Fire Island, New York to define a new contour-based morphologic change metric, the Beach Change Envelope (BCE). The BCE quantifies changes to the upper portion of the beach likely to sustain measurable impacts from storm waves and capture a variety of storm and post-storm beach states. We evaluated the ability of the BCE to characterize cycles of beach change by relating it to a conceptual beach recovery regime, and demonstrated that BCE width and BCE height from the profile time series correlate well with established stages of recovery. We also investigated additional applications of this metric to capture impacts from storms and human modification by applying it to several post-storm historical datasets in which impacts varied considerably; Nor'Ida (2009), Hurricane Irene (2011), Hurricane Sandy (2012), and a 2009 community replenishment. In each case, the BCE captured distinctive upper beach morphologic change characteristic of these different beach building and erosional events. Analysis of the beach state at multiple profile locations showed spatial trends in recovery consistent with recent morphologic island evolution, which other studies have linked with sediment availability and the geologic framework. Ultimately we demonstrate a new way of more effectively characterizing beach response and recovery cycles to evaluate change along sandy coasts.
    Description: This work was supported by the 2013 Disaster Relief Appropriations Act, Department of Interior Hurricane Sandy Supplemental Project GS2-2B.
    Keywords: Barrier Island ; Coastal geomorphology ; Storm response ; Beach recovery
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 2
    Electronic Resource
    Electronic Resource
    IUE observations of Solar System objects (1978)
    [s.l.] : Nature Publishing Group
    Nature 275 (1978), S. 414-415 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IUE PROVIDES an excellent way for acquiring UV spectra in the wavelength region shortwards of the Earth's ozone cutoff (about 3,100 Å). The UV vidicons, when properly erased and prepared for use, can be exposed for several hours on very weak planetary emissions. This integration time, and the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/275414a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Novel cytochrome b system in phagocytic vacuoles of human granulocytes (1978)
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 515-517 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Difference spectra of human neutrophils incubated with latex particles (a), latex particles in the presence of (2 mM) KCN (b) or phorbol myristate acetate (c). Absorbance scale = 0.028 of full scale for a and b and 0.011 for c. Spectra were determined in the few minutes after mixing 108 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/276515a0
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  • 4
    Electronic Resource
    Electronic Resource
    An active source electromagnetic sounding system for marine use (1990)
    Springer
    Marine geophysical researches 12 (1990), S. 59-68 
    Details
    ISSN: 1573-0581
    Keywords: electrical conductivity ; instrumentation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Instrumentation has been developed for carrying out active source electromagnetic sounding experiments in the deep oceans. Experiments of this type are directly and uniquely sensitive to the presence of molten or partially molten material, to temperature structure and to the porosity of upper crustal rocks such as those that accommodate hydrothermal circulation systems. Electromagnetic sounding experiments therefore represent an extremely desirable addition to the existing range of geophysical techniques for studying geological processes in thermally, hydrothermally or magmatically active regions—for example, at oceanic spreading centres. The instruments can be operated in regions of rugged, unsedimented sea bottom terrain, and are designed for investigating the distribution of electrical conductivity within the oceanic crust and uppermost mantle. The instrumentation consists of a deep towed, horizontal electric dipole transmitter and a set of free-fall, sea bottom, horizontal electric field recording devices. The transmitter is a deep-towed instrument, which is provided with power from the towing ship through a conducting cable. The transmitter package is fitted with an integral echo sounder, which allows it to be towed safely a short distance above the seabed. Electromagnetic signals are transmitted from a neutrally-buoyant antenna array, which is streamed behind the deep tow. The sea bottom receiving instruments each consist of a recoverable package which contains the instrumentation and digital recording system, an acoustic release unit, four low-noise, porous electrodes arranged in two orthogonal, horizontal dipoles, and a disposable bottom weight. The instruments have been used at sea on three occasions. On their most recent use, active source signals were successfully recorded during an experiment to investigate crustal magmatism and hydrothermal circulation beneath the axis of the East Pacific Rise.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00310563
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  • 5
    Electronic Resource
    Electronic Resource
    Origin of the major planet atmospheres: Clues from trace species (1994)
    Springer
    Earth, moon and planets 67 (1994), S. 71-75 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00613292
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  • 6
    Electronic Resource
    Electronic Resource
    The search for other planets: Clues from the solar system (1994)
    Springer
    Astrophysics and space science 212 (1994), S. 1-11 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Studies of element abundances and values of D/H in the atmospheres of the outer planets and Titan support a two-step model for the formation of these bodies. This model suggests that the dimensions of Uranus provide a good index for the sensitivity required to detect planets around other stars. The high proportion of N2 on the surfaces of Pluto and Triton indicates that this gas was the dominant reservoir of nitrogen in the early solar nebula. It should also be abundant on pristine comets. There is evidence that some of these comets may well have brought a large store of volatiles to the inner planets, while others were falling into the sun. In other systems, icy planetesimals falling into stars should reveal themselves through high values of D/H.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984503
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  • 7
    Electronic Resource
    Electronic Resource
    Ultrastructural localization of Lucifer Yellow and endocytosis in plant cells (1991)
    Springer
    Protoplasma 160 (1991), S. 115-120 
    Details
    ISSN: 1615-6102
    Keywords: Brocchinia reducta (Bromeliaceae) ; Coated vesicle ; Dictyosome ; Endocytosis ; Lucifer Yellow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The fluorescent dye Lucifer Yellow CH (LYCH) was localized at the ultrastructural level with a precipitation method using barium chloride. Applying this technique, endocytosis of LYCH was examined in the nutrient absorptive trichomes of a carnivorous bromeliad. After a two hour incubation, the electron dense reaction product was localized in the membrane compartments of the endocytotic system. These structures included coated regions of the plasma membrane, coated and smooth vesicles, dictyosomes, partially coated reticulum, and smooth endoplasmic reticulum. This procedure demonstrates for the first time at the ultrastructural level endocytosis in whole plant cells, using a non-toxic compound.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01539963
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  • 8
    Electronic Resource
    Electronic Resource
    Voyager imaging experiment (1977)
    Springer
    Space science reviews 21 (1977), S. 103-127 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The overall objective of this experiment is exploratory reconnaissance of Jupiter, Saturn, their satellites, and Saturn's rings. Such reconnaissance, at resolutions and phase angles unobtainable from Earth, can be expected to provide much new data relevant to the atmospheric and/or surface properties of these bodies. The experiment also has the following specific objectives: Observe and characterize the global circulation of the atmospheres of Jupiter and Saturn; Determine the horizontal and vertical structure of the visible clouds and establish their relationship to the belted appearance and dynamical properties of the planetary atmospheres; Determine the vertical structure of high, optically-thin, scattering layers on Jupiter and Saturn; Determine the nature of anomalous features such as the Great Red Spot, South Equatorial Belt disturbances, etc.; Characterize the nature of the colored material in the clouds of Jupiter and Saturn, and identify the nature and sources of chromophores on Io and Titan; Perform comparative geologic studies of many satellites at less than 15-km resolution; Map and characterize the geologic structure of several satellites at high resolution (∼1 km); Investigate the existence and nature of atmospheres on the satellites; Determine the mass, size, and shape of many of the satellites by direct measurement; Determine the direction of the spin axes and periods of rotation of several satellites, and establish coordinate systems for the larger satellites; Map the radial distribution of material in Saturn's rings at high resolution; Determine the optical scattering properties of the primaries, rings, and satellites at several wavelengths and phase angles; Search for novel physical phenomena, e.g., phenomena associated with the Io flux tube, meteors, aurorae, lightning, or satellite shadows.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00200847
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  • 9
    Electronic Resource
    Electronic Resource
    Galileo Probe Mass Spectrometer experiment (1992)
    Springer
    Space science reviews 60 (1992), S. 111-142 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Galileo Probe Mass Spectrometer (GPMS) is a Probe instrument designed to measure the chemical and isotopic composition including vertical variations of the constituents in the atmosphere of Jupiter. The measurement will be performed by in situ sampling of the ambient atmosphere in the pressure range from approximately 150 mbar to 20 bar. In addition batch sampling will be performed for noble gas composition measurement and isotopic ratio determination and for sensitivity enhancement of non-reactive trace gases. The instrument consists of a gas sampling system which is connected to a quadrupole mass analyzer for molecular weight analysis. In addition two sample enrichment cells and one noble gas analysis cell are part of the sampling system. The mass range of the quadrupole analyzer is from 2 amu to 150 amu. The maximum dynamic range is 108. The detector threshold ranges from 10 ppmv for H2O to 1 ppbv for Kr and Xe. It is dependent on instrument background and ambient gas composition because of spectral interference. The threshold values are lowered through sample enrichment by a factor of 100 to 500 for stable hydrocarbons and by a factor of 10 for noble gases. The gas sampling system and the mass analyzer are sealed and evacuated until the measurement sequence is initiated after the Probe enters into the atmosphere of Jupiter. The instrument weighs 13.2 kg and the average power consumption is 13 W. The instrument follows a sampling sequence of 8192 steps and a sampling rate of two steps per second. The measurement period lasts appropriately 60 min through the nominal pressure and altitude range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00216852
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  • 10
    Electronic Resource
    Electronic Resource
    The use of a water-soluble formazan complex to quantitate the cell number and mitochondrial function ofLeishmania major promastigotes (1994)
    Springer
    Parasitology research 80 (1994), S. 235-239 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract One of the methods to quantitateLeishmania major promastigotes (LmP) has been to utilize the formation of a formazan dye, which in turn is produced via conversion of an artificial substrate, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT). The method has one major drawback in that the formazan complex precipitates inside the parasites and has to be extracted by denaturants before measurements can be performed. By using a new synthetic substrate, 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfonyl)-2H-tetrazolium (MTS), the extraction procedure is eliminated as the formazan-like dye is released spontaneously into the medium, making it possible to perform several measurements on the same parasite culture without disturbing or killing the parasites. The measurements were shown to reflect the numbers of parasites as confirmed via comparative experiments using radioactive thymidine uptake and cell counting, respectively. The method is simple, fast, and highly reproducible and is suitable for drug screening, identification of drug-resistant isolates, and growth-kinetics studies. It is therefore contemplated that the MTS method will be a general and useful technique in this field of parasitology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00932680
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