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  • 2000-2004  (31)
  • 1985-1989  (31)
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  • 1
    Series available for loan
    Series available for loan
    Concepts for a national water-quality assessment program (1988)
    Washington, DC : United States Gov. Print. Off.
    Associated volumes
    Details Availability
    Call number: SR 90.0003(1021)
    In: U.S. Geological Survey circular
    Type of Medium: Series available for loan
    Pages: VII, 42 S.
    Series Statement: U.S. Geological Survey circular 1021
    Language: English
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 2
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    Unknown
    (Table 1) Age determination of ODP Leg 166 holes (2002)
    PANGAEA
    In:  Supplement to: Slowey, Niall C; Wilber, R Jude; Haddad, Geoffrey A; Henderson, Gideon M (2002): Glacial-to-Holocene sedimentation on the western slope of Great Bahama Bank. Marine Geology, 185(1-2), 165-176, https://doi.org/10.1016/S0025-3227(01)00295-X
    Details
    Publication Date: 2024-03-09
    Description: Thick, late Quaternary sediment sections were recovered at several sites on the leeward slope of Great Bahama Bank during Leg 166 of the Ocean Drilling Program. These sections have paleoceanographic records with potentially high temporal resolution. To make an initial assessment of the records corresponding to the Holocene highstand of sea level, we have identified and dated the sediments from the four upper slope sites (1004, 1005, 1008, and 1009) that were deposited during the period of time which spans the last glaciation through the Holocene. Age identifications are based upon the abundances of the Globorotalia menardii complex of planktonic foraminifera, the stable oxygen isotopic ratios of bulk sediment and the planktonic foraminifera Globogerinoides ruber, and AMS C-14 dating of bulk sediment. Comparison of these data with the sediment lithologic and geoacoustic properties shows that consistent stratigraphic relationships exist at each site: The uppermost interval of aragonite-rich sediments corresponds to the Holocene highstand of sea level (i.e. oxygen isotope stage 1) and these sediments are underlain by a relatively thin interval of aragonite-poor, partially lithified sediments which corresponds to the last glaciation when sea level was significantly lower than today (i.e. oxygen isotope stages 2-4). The Leg 166 upper slope sites possess carbonate accumulation and paleoceanographic proxy records with very high temporal resolution, with Sites 1004, 1008, and 1009 appearing to have the greatest stratigraphic integrity. Comparison of core and high-resolution seismic profile data establishes the Holocene nature of the uppermost seismic unit in the stratigraphic package of the western slope of Great Bahama Bank.
    Keywords: 166-1004A; 166-1005A; 166-1008A; 166-1009A; Age, 14C AMS; Age, dated; Age, dated standard deviation; Comment; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg166; Ocean Drilling Program; ODP; Sample code/label; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 34 data points
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    DATA PANGAEA
  • 3
    Electronic Resource
    Electronic Resource
    Effective linewidth measurements at 36 GHz in hexagonal and cubic ferrites (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 3353-3355 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Effective linewidth measurements at 36 GHz are reported for barium ferrite, several W-type single-crystal hexagonal ferrites, and for polycrystalline LiZn ferrite. In general, the effective linewidths for the W-type ferrites were relatively large—several hundred oersteds. Values of ΔHeff for the barium ferrite samples were tens of oersteds, similar to the ferromagnetic resonance (FMR) linewidths for these materials. The LiZn samples showed effective linewidths significantly below the FMR values. The results indicate that the two-magnon loss mechanism is the predominant factor in the polycrystalline LiZn, but contributes little to the ferromagnetic loss in single-crystal barium ferrite. The data for the W-type ferrites show that the intrinsic loss for these single-crystals is a significant part of the ferromagnetic resonance linewidth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340779
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  • 4
    Electronic Resource
    Electronic Resource
    Preludes to spin-wave chaos: Spin-wave instability processes, butterfly curves, kinks, flips, cusps, and shifts (invited) (abstract) (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 5401-5401 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Manifestations of chaos1–3 above the threshold microwave field for spin-wave instability have brought this established topic in microwave magnetics back into vogue. This paper will review the nature of the instability onset and the factors which determine the variation of the threshold microwave field for instability (hcrit) with dc field, the so-called "butterfly curve.'' A key factor here is the wave-vector k dependence of the spin-wave linewidth ΔHk. This k dependence leads to abrupt shifts in the wave number k for the unstable modes from large values (105 cm−1) to small values (103 cm−1) and a characteristic "kink'' in the subsidiary absorption butterfly curve. Under certain circumstances, flips in the aximuthal spin-wave propagation angle are also predicted. Such flips show up experimentally in some of the expected circumstances, but not in others.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342382
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  • 5
    Electronic Resource
    Electronic Resource
    Light-scattering observation of anomalous parametric spin-wave character in subsidiary absorption (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 5477-5479 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The technique of Brillouin light scattering has been used for the characterization, in terms of wave number and direction of propagation, of parametric spin waves associated with subsidiary absorption in thin films of yttrium iron garnet. Measurements at 7.99, 8.47, and 9.90 GHz have revealed a spin-wave character consistent with theory, with two notable exceptions. First, the data show no evidence for a predicted flip in the azimuthal propagation angle. Second, the measured magnon wave numbers at high fields are inconsistent with the theoretical values. The wave number and polar angle results imply that the change to low-k spin waves is not a discontinuous transition as indicated by the model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342524
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  • 6
    Electronic Resource
    Electronic Resource
    NATIONAL WATER-QUALITY ASSESSMENT: FUTURE DIRECTIONS OF THE U.S. GEOLOGICAL SURVEY (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 24 (1988), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1988.tb03032.x
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  • 7
    Electronic Resource
    Electronic Resource
    Volatiles of wild blueberry, Vaccinium angustifolium: possible attractants for the blueberry maggot fruit fly, Rhagoletis mendax (1989)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 37 (1989), S. 232-233 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf00085a053
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  • 8
    Electronic Resource
    Electronic Resource
    Associations between gastropod shell characteristics and egg production in the hermit crab Pagurus longicarpus (1989)
    Springer
    Oecologia 81 (1989), S. 6-15 
    Details
    ISSN: 1432-1939
    Keywords: Hermit crabs ; Reproduction ; Log-linear models ; Resource ecology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two populations (salt marsh and seagrass bed) of the hermit crab Pagurus longicarpus were sampled to examine associations between shell characteristics and egg production. Multivariate statistical analyses controlled for crab size and time of year, variables that otherwise could be confounded with shell effects. Although correlations between shell characteristics and reproduction existed in both populations, generalizations could not be made because associations varied within and between populations. Shell species was not associated with a female's reproductive state (i.e., whether or not she was barren when sampled) in either population. In the seagrass population, medium-large and large females occupying severely damaged or fouled shells were half as likely to be reproductive as females occupying other shell conditions. However, there was no association between shell condition and reproductive state for small and small-medium females in the seagrass population or among all females in the salt marsh population. In the seagrass population, small through medium-large reproductive females occupied shells more similar to their predicted shell size, regardless of whether the occupied shell was relatively small or large, than nonreproductive females. In contrast, relative shell sizes of reproductive and nonreproductive females were similar for large females in the seagrass population and all females in the salt marsh population. Clutch sizes were enhanced for females occupying Polinices duplicatus shells or shells larger than their predicted shell size in the seagrass population. Relative shell size also was associated with clutch size in the salt marsh population, but crabs occupying shells similar to their predicted shell size had the largest clutches.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00377002
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  • 9
    Electronic Resource
    Electronic Resource
    Geometric applications of a matrix-searching algorithm (1987)
    Springer
    Algorithmica 2 (1987), S. 195-208 
    Details
    ISSN: 1432-0541
    Keywords: All-farthest neighbors ; Monotone matrix ; Convex polygon ; Wire routing ; Inscribed polygons ; Circumscribed polygons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract LetA be a matrix with real entries and letj(i) be the index of the leftmost column containing the maximum value in rowi ofA.A is said to bemonotone ifi 1 〉i 2 implies thatj(i 1) ≥J(i 2).A istotally monotone if all of its submatrices are monotone. We show that finding the maximum entry in each row of an arbitraryn xm monotone matrix requires Θ(m logn) time, whereas if the matrix is totally monotone the time is Θ(m) whenm≥n and is Θ(m(1 + log(n/m))) whenm〈n. The problem of finding the maximum value within each row of a totally monotone matrix arises in several geometric algorithms such as the all-farthest-neighbors problem for the vertices of a convex polygon. Previously only the property of monotonicity, not total monotonicity, had been used within these algorithms. We use the Θ(m) bound on finding the maxima of wide totally monotone matrices to speed up these algorithms by a factor of logn.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01840359
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  • 10
    Electronic Resource
    Electronic Resource
    The influence of sexual selection and predation on the mating and postcopulatory guarding behavior of stone crabs (Xanthidae, Menippe) (1989)
    Springer
    Behavioral ecology and sociobiology 24 (1989), S. 445-451 
    Details
    ISSN: 1432-0762
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Postcopulatory mate guarding in crustaceans traditionally has been viewed as a behavioral mechanism that prevents predation on the soft post-molt female. This study tests the effects of sexual selection and predation on the postcopulatory guarding durations of male stone crabs, Menippe mercenaria, M. adina, and their hybrid. Male stone crabs were held with a pre-molt female, and either another adult male stone crab, an intermolt female, or a male blue crab, which corresponded to intermale competition, control, and predation treatments, respectively. The mating behavior of the heterosexual pair was recorded with a time lapse video system and the durations of copulation and postcopulatory guarding were measured. Males guarded longer in the intermale competition treatment than either the control or predation treatments. In the competition treatment, agonistic encounters occurred between the males at the den containing the female and several mate takeovers occurred. Females survived the predation treatment in trials in which the guarding durations were the longest, whereas females were eaten by the blue crab in trials with the shortest guarding durations. Sexual selection appears to be important in maintaining postcopulatory mate guarding in stone crabs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00293274
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