ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Supersonic Jet Noise (1995)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Fluid Mechanics 27 (1995), S. 17-43 
    Details
    ISSN: 0066-4189
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.fl.27.010195.000313
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Reactively sputtered tantalum thin film resistors Part 2. Low energy, low fluence proton radiation damage
    Amsterdam : Elsevier
    Thin Solid Films 8 (1971), S. 101-115 
    Details
    ISSN: 0040-6090
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6090(71)90002-2
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Reactivity sputtered tantalum thin film resistors Part 1. Physical and electrical properties
    Amsterdam : Elsevier
    Thin Solid Films 8 (1971), S. 81-100 
    Details
    ISSN: 0040-6090
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6090(71)90001-0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Ketene dithioacetals III: the conjugate addition of ketene dithioacetal anions to cyclic α,β-unsaturated ketones
    Amsterdam : Elsevier
    Tetrahedron Letters 20 (1979), S. 4717-4720 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(01)86692-2
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Parathyroid hormone stimulates dentin and bone apposition in the thyroparathyroidectomized rat in a dose-dependent fashion (1983)
    Springer
    Calcified tissue international 35 (1983), S. 586-590 
    Details
    ISSN: 1432-0827
    Keywords: Dentin ; Bone ; Apposition rate ; Parathyroid hormone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary The dose-dependency of the effects of parathyroid hormone (PTH) on bone and dentin apposition after both intermittent and continuous administration of the hormone was investigated. The purpose was to compare the sensitivity of these two mineralizing tissues to parathyroid hormone and to provide additional information regarding the direct effect of PTH on mineralized tissue formation. Adult rats were thyroparathyroidectomized and 5 groups of 4 or 5 rats each were given daily subcutaneous injections with different doses of bovine parathyroid hormone. Five more groups of 4 rats each were administered equivalent dosages by means of a continuous infusion pump implanted subcutaneously. An additional group of 4 rats served as controls. All animals were labeled with tetracycline injected on days 7, 9, and 11. The animals were killed on day 12 and blood samples were collected for serum calcium determination. The lower metaphysis of the femur and the left and right mandibles were dissected out, and undecalcified sections of plastic-embedded tissues were prepared. The distances between the three tetracycline bands were measured to determine the amount of bone or dentin formation. Results indicated that both dentin and bone apposition increased with higher dosages of hormone. No overall effect of the method of administration was evident. For both methods, bone apposition showed a more pronounced increase over the control levels than dentin apposition. This suggests that, although both osteoblasts and odontoblasts appear to respond directly to PTH, differences do exist in the magnitude and dose-dependency of the response. No causal relationship was found between increases in serum calcium levels and either bone or dentin apposition at the lower dose levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02405098
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Ultrastructural and cytochemical studies of the effects of prolactin on the lateral prostate and the seminal vesicle of the castrated guinea pig (1992)
    Springer
    Cell & tissue research 270 (1992), S. 105-112 
    Details
    ISSN: 1432-0878
    Keywords: Prolactin ; Lateral prostate ; Seminal vesicle ; Thiamine pyrophosphatase ; Radioimmunoassay ; Morphometry ; Guinea pig (Dunkin Hartley)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Administration of ovine prolactin to castrated guinea pigs for 2 weeks induced hypertrophy of secretory cells in the lateral prostate when compared with the castrated controls. This was accompanied by an apparent increase in the number of profiles of granular endoplasmic reticulum and well developed Golgi complexes with dilated cisternae. An increase in the number of low-contrast electron-dense secretory granules was observed 4 weeks after prolactin treatment. In the seminal vesicle, dilatation and degranulation of granular endoplasmic reticulum and an apparent decrease in the number of secretory granules were observed 4 weeks after prolactin administration. Following castration and 2 weeks after prolactin treatment, thiamine pyrophosphatase (TPPase)-reaction product was mainly confined to 1–2 trans cisternae of the Golgi complexes in secretory cells of the lateral prostate and the seminal vesicle. In both glands, a reduction of TPPase activity was observed 2 weeks following prolactin administration, and the reaction product was totally absent after prolonged treatment for 4 weeks. The present study has provided morphological evidence that prolactin is capable of stimulating the secretory function of the lateral prostate while exerting some inhibitory effects on the seminal vesicle of the castrated guinea pig. In both glands, TPPase activity, and hence the process of glycosylation was inhibited after prolactin administration. The results from radioimmunoassay indicated that the action of prolactin on these glands could be a direct effect and not mediated through testosterone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00381885
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Thiamine pyrophosphatase activity in secretory cells of the lateral prostate and seminal vesicle of normal and castrated guinea pigs and castrates treated with oestradiol (1993)
    Springer
    Journal of molecular histology 25 (1993), S. 77-85 
    Details
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Ultrastructural localization of thiamine pyrophosphatase (TPPase) activity was studied in secretory cells of the lateral prostate and seminal vesicle of normal and castrated guinea pigs and castrates treated with 17β-oestradiol benzoate. The present study has demonstrated that TPPase reaction product is consistently localized in the three to four trans cisternae of Golgi complexes in both the lateral prostate and the seminal vesicle. The reaction was intense and the reaction product often filled the cisternae completely. After castration there was a decrease in TPPase activity in both glands as revealed by the reduction in the amount of the reaction product which was found mainly in one to two trans cisternae of the regressed Golgi complex. The reaction product changed from a dense to a more particulate or granular pattern or to discrete deposits of high electron-density. Administration of 17β-oestradiol benzoate to the castrates caused changes in the localization and patterns of distribution of TPPase. In the lateral prostate there was an apparent increase in TPPase activity. The reaction product was found in two to four trans cisternae and occasionally in the trans-most cisternae of the dilated Golgi complex. The reaction product appeared as discrete, dense coarse precipitates. In the seminal vesicle TPPase reaction product was consistently found in one to two trans cisternae in cells with larger Golgi complexes. However, almost all cisternae of the smaller Golgi complexes were TPPase-positive. The cytochemicl results of the present study suggest that TPPase activity and possibly the process of glycosylation in secretory cells of the lateral prostate and seminal vesicle may have been affected after castration and after oestradiol administration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00161047
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Ta thin film resistors reactively sputtered onto substrates mounted on a rotating carousel (1974)
    Springer
    Journal of materials science 9 (1974), S. 438-446 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Ta thin film resistors have been reactively sputtered in 1.5×10−5 Torr oxygen and 1.5×10−5 Torr nitrogen simultaneously, using a d.c. diode system in which the anode is formed by a carousel. The substrates are mounted on this carousel and can be rotated through the discharge. For non-heat-treated films the resistivity increases and the TCR becomes more negative as the carousel rotation speed increases. These changes in electrical properties are attributed to the observed increase in the oxygen concentration and a simultaneous decrease in the nitrogen concentration in the films. The electrical properties are further perturbed by an elongation of the physical structure of the films as a result of carousel rotation. This elongation, which can produce an increased resistivity for a given TCR, is attributed to oblique incidence effects as the substrate rotates into, and out of the discharge. Changes produced in the electrical and structural properties of the films during heat-treatment at 500
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00737845
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Morphogenesis and ductal development of the prostatic complex of the guinea pig (1993)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 217 (1993), S. 219-227 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The morphogenesis of glandular architecture of the three lobes of prostate gland of the guinea pig, lateral, dorsal, and coagulating gland was studied from 35 days gestation to 90 postnatal days. Epithelial ductal tubules of various lobes of the gland were microdissected after treatment by collagenase and displayed two dimensionally. The number of ductal tips was counted, and the volume of the ductal network was quantified using a graphic tablet. The results show that the growth and ductal morphogenesis fall into two phases: prenatal and postnatal. The first outgrowth of prostatic buds begins at 35 days gestation (gestational length is 65 days). Ductal growth and branching continues over the next 15-20 days and by 55 days gestation, approximately 60%, 79%, and 71% of the adult number of ductal tips of the lateral and dorsal lobes and coagulating gland respectively, are formed. The figures increase to 89%, 84%, and 106%, respectively, by birth. There is little increase in number of ductal tips thereafter. Postnatal growth is accomplished mainly by elongation of existing ductal network with a little additional branching but with an increase in size (volume) of the tubules. Canalization of ductal tubules occurs prenatally in all lobes but postnatal functional cytodifferentiation takes a slightly different pace among them. Ductal morphogenesis of the guinea pig prostate gland differs significantly in time-course from that of the mouse in which ductal development occurs mainly postnatally. © 1993 Wiley-Liss, Inc.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1052170209
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Retention characteristics of alcohols and sugars on polysulfone as a stationary phase with an aqueous mobile phase (1991)
    Springer
    Chromatographia 32 (1991), S. 224-228 
    Details
    ISSN: 1612-1112
    Keywords: Column Liquid chromatography ; Polysulfones ; Membrane materials ; Surface interactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Partition coefficients (Ka) necessary for the understanding of solute-material interactions was experimentally generated by liquid chromatography. Using three commercial polysulfones (Udel, Victrex and Radel) as the stationary phase and water as the mobile phase, retention behavior for a series of alcohols and sugars were determined. The logarithm of the distribution of the solute between the mobile and stationary phase was linearly related to solute descriptors such as octanol-water partition coefficients (KO/W) and molecular connectivity index (κ1). Solubility parameters were used as means of describing the different stationary phases and were related to chromatographic behavior.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02276244
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...