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  • 1
    Online Resource
    Online Resource
    Sperm Morphology of Domestic Animals. (2022)
    Newark :John Wiley & Sons, Incorporated,
    Details
    Keywords: Domestic animals-Behavior. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (142 pages)
    Edition: 1st ed.
    ISBN: 9781119769798
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=6845936
    DDC: 571.8451
    Language: English
    Note: Cover -- Title Page -- Copyright Page -- Contents -- Preface -- About the Companion Website -- Introduction -- I.1 Spermatogenesis -- I.2 Length of Spermatogenesis in Domestic Species -- I.3 Maturation of Spermatozoa in the Epididymis -- I.4 Staining Techniques and Evaluation of Morphology -- I.5 Vital Staining -- I.6 Preparation of Semen Smears or Coverslip Slides -- I.7 Differential Counting of Sperm Morphology -- Section I Head Abnormalities -- Chapter 1 Pyriform and Tapered Heads -- Chapter 2 Nuclear Vacuolation, Including the Diadem Defect -- Chapter 3 Macrocephalic and Microcephalic Sperm -- Chapter 4 Rolled Head-Nuclear Crest-Giant Head Syndrome -- Chapter 5 Abnormal DNA Condensation -- Chapter 6 Acrosome Abnormalities -- Chapter 7 Normal Detached Heads and Free Abnormal Heads -- Chapter 8 Decapitated Sperm Defect -- Section II Midpiece Abnormalities -- Chapter 9 Proximal Cytoplasmic Droplet -- Chapter 10 Pseudodroplet -- Chapter 11 Mitochondrial Sheath Defects -- Chapter 12 Corkscrew Sperm Defect -- Chapter 13 Dag Defect -- Chapter 14 Distal Midpiece Reflex -- Chapter 15 Bowed Midpieces -- Chapter 16 Distal Droplets -- Chapter 17 Abaxial Midpieces -- Section III Tail (Principal Piece) Abnormalities -- Chapter 18 Tail Stump Defect -- Chapter 19 Coiled Principal Pieces -- Chapter 20 Double Forms and Accessory Tails -- Chapter 21 Bent Principal Pieces -- Chapter 22 Short Tail Defect -- Section IV Aberrations of Stains and Other Cells in the Ejaculate -- Chapter 23 Aberrations Due to Staining -- Chapter 24 Aberrations Due to Cold Shock -- Chapter 25 Round Cells in the Ejaculate -- Chapter 26 Teratoids -- Chapter 27 Medussa "Cells" -- Chapter 28 Aberrations of Semen Quality -- 28.1 Oligospermia/Azoospermia -- 28.2 Hemospermia -- 28.3 Urospermia -- 28.4 Antisperm Antibodies -- References -- Index -- EULA.
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    GEOMAR EBL
  • 2
    facet.materialart.
    Unknown
    Arctic Ocean (2016)
    Oceans and Law of the Sea, United Nations
    In:  EPIC3The First Global Integrated Marine Assessment, Chapter 36G: Arctic Ocean, New York, Oceans and Law of the Sea, United Nations, 47 p., pp. 1-47
    Details
    Publication Date: 2016-03-13
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
    Format: application/pdf
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    PAPER (OA)
  • 3
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    Unknown
    Ocean Systems (2014)
    Cambridge University Press
    In:  EPIC3Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge, United Kingdom and New York, NY, USA, Cambridge University Press, pp. 411-484, ISBN: 9781107641655
    Details
    Publication Date: 2017-01-13
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
    Format: application/pdf
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    PAPER (OA)
  • 4
    Electronic Resource
    Electronic Resource
    Folded waveguide gyrotron traveling-wave-tube amplifier (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 2 (1995), S. 915-922 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A compact, low cost gyrotron traveling-wave-tube (gyro-TWT) amplifier capable of producing high-power, broadband, millimeter wave radiation is reported. The interaction circuit is a periodic, magnetic field plane (H plane) bend, transverse folded waveguide employed with a high-power axis-encircling electron beam. Transverse beam modulation and wave amplification in the folded waveguide gyro-TWT are observed in both linear theory and large signal simulations. Calculations from an equivalent circuit model and a three-dimensional electromagnetic code predict a mode coalescing of the first stop-band in a periodic structure. The mode coalescing is verified from experimental measurements. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871372
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Frequency multiplied harmonic gyrotron-traveling-wave-tube amplifier (1994)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 1 (1994), S. 2058-2062 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Numerical simulations of a W-band two-stage tapered, frequency multiplied gyrotron- traveling-wave-tube amplifier are reported. Unlike conventional harmonic gyrodevices, a drive signal at the fundamental harmonic frequency is injected in the first stage for beam modulation, and amplified output radiation is extracted from the third harmonic cyclotron resonance interaction. Numerical results show that broadband millimeter wave radiation is obtained with an efficiency of 10%–15%, a gain of ∼30 dB, and an instantaneous bandwidth of ∼10% at a center frequency of 95 GHz for Δvz/vz=2%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870600
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    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    c-erbB-3 proto-oncogene expression in uterine cervical carcinoma (1995)
    Suite 500, 5th Floor, 238 Main Street, Cambridge, Massachusetts 02142, USA : Blackwell Science Ins.
    International journal of gynecological cancer 5 (1995), S. 0 
    Details
    ISSN: 1525-1438
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Over-expression of epidermal growth factor receptor (EGFR) and c-erbB-2, in uterine cervical carcinomas, is associated with a worsened prognosis. A third member of this proto-oncogene family, c-erbB-3, has now been identified and its over-expression has been described in a variety of carcinomas. In this immunohistochemical study we have shown that c-erbB-3 is widely expressed in cervical carcinomas, but we have found no association between its over-expression and lymph node status or clinical outcome. In a similar study examining the expression of EGFR and c-erbB-2 it was possible to demonstrate an association between over-expression and a worse prognosis. We conclude, therefore, that it is unlikely that demonstration of c-erbB-3 over-expression will be of any value as a prognostic indicator in carcinoma of the uterine cervix.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1525-1438.1995.05040282.x
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    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Spectrophotometric Determination of Iron and Titanium in Cathode Nickel (1948)
    s.l. : American Chemical Society
    Analytical chemistry 20 (1948), S. 1208-1209 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60024a023
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    A theory of cavity excitation by modulated electron beam in connection with application to a klystron amplifier (1993)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 1349-1357 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Based on an equivalent circuit representation of a cavity impedance, a theoretical model of the cavity excitation by a modulated electron beam is developed. The beam current modulation is initiated by the first cavity and amplified in drift section between the first and second cavities. Properties of the second cavity excitation by the beam are described in terms of the phase shift Ψ and amplitude φ2 of induced voltage in the cavity. The phase shift Ψ and amplitude φ2 are determined in terms of the frequency difference (η), the cavity Q value, the voltage multiplication factor (χ), and magnitude (φ1) of the first cavity voltage. The voltage multiplication factor is proportional to the beam intensity, Q value, and distance between the first and second cavities. On the other hand, it is inversely proportional to frequency and capacitance of the cavity, and beam electron velocity. Because the induced voltage in the second cavity is in phase with the first cavity voltage at upshifted cavity frequency, amplitude of the current modulation at the upshifted frequency is larger than that at the downshifted cavity frequency. Experimental study is carried out by making use of a klystron amplifier operable from 4.4 to 5 GHz. Experimental data from the klystron agree remarkably well with amplifier performance profiles predicted by the theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.860924
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  • 9
    Electronic Resource
    Electronic Resource
    Linear analysis of backward wave oscillations in azimuthally varying transverse electric (TE) modes (1993)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 1639-1646 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A linear analysis for a gyrotron backward wave oscillator operating at a general transverse electric (TEln) mode of a cylindrical waveguide (slotted or uniform cross section) has been developed using a Maxwell–Vlasov equation under the tenuous beam approximation. The equation is solved by Laplace transformation to allow easy insertion of the boundary values. The start-oscillations conditions are determined from an interference of the waveguide and beam modes with appropriate amplitudes and phases. The theory is used to determine the design parameters for stable operation of a second cyclotron harmonic gyropeniotron amplifier at 35 GHz in the π mode of a six vane magnetron-type circuit with a 70 kV, 3 A beam.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.860960
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  • 10
    Electronic Resource
    Electronic Resource
    Substance P induction of murine keratinocyte PAM 212 interleukin 1 production is mediated by the neurokinin 2 receptor (NK-2R) (2000)
    Copenhagen : Munksgaard International Publishers
    Experimental dermatology 9 (2000), S. 0 
    Details
    ISSN: 1600-0625
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: The neurological system plays an important role in modulating some inflammatory skin diseases. Neuro-cutaneous interactions may be mediated by the release of neuropeptides such as substance P (SP) which activate immunocompetent cells in the skin by binding to high affinity neurokinin receptors (NKR). Since epidermal keratinocytes produce a variety of cytokines and are intimately associated with cutaneous sensory fibers, we tested the ability of these cells to participate in the cutaneous neuroimmune system by the secretion of potent cytokines such as interleukin 1 (IL-1) in response to released SP. RT-PCR studies demonstrated that cultured PAM 212 murine keratinocytes expressed mRNA for NK-2R but not NK-1R. Correspondingly, the addition of SP to these cells resulted in a rapid increase in intracellular Ca2+ levels that could be specifically blocked by an NK-2R antagonist. NK-2R was also shown in normal mouse epidermis by immunohistochemistry. SP augmented the expression of PAM 212 keratinocyte IL-1α mRNA in a dose and time dependent manner and this induction was inhibited by an NK-2R antagonist. Secretion of bioactive IL-1α by the PAM 212 keratinocytes was likewise stimulated by SP in a dose dependent manner. These data support the hypothesis that SP released from cutaneous sensory nerves contributes to neuroimmune inflammatory responses in the skin by modulating the expression and release of cytokines from epidermal keratinocytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-0625.2000.009001042.x
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