Library

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
    Sex Differences in the Content of β-Endorphin and Enkephalin-Like Peptides in the Pituitary of Obese (ob/ob) Mice (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 36 (1981), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: The β-endorphin content in pituitary extracts of male and female obese (ob/ob) and lean (+/?) mice was determined by radioimmunoassay. The amount of β-endorphin-like material contained in the pituitary of 3-month-old ob/ob male mice is similar to that of lean male mice. In contrast, the pituitary glands of female ob/ob mice have a greater amount of β-endorphin-like material than lean female mice. To determine with greater precision the molecular nature of the polypeptide that accounts for the increase in β-endorphin immunoreactivity, the various molecular forms of β-endorphin immunoreactivity were resolved by Biogel P-30 column chromatography. At least four peaks of immunoreactive material were detected. The first peak elutes in the void volume, and the second and the third peaks appear in the elution volumes of β-lipotropin and β-endorphin, respectively. That the material present in the void volume might be proopiocortin is supported by adrenocorticotropic hormone radioimmunoassay. The increased total β-endorphin immunoreactivity in pituitary glands of ob/ob mice is accounted for mainly by β-endorphin. The β-endorphin content of various brain structures of ob/ob mice is similar to that of lean littermates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1981.tb00437.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Tunneling currents through ultrathin oxide/nitride dual layer gate dielectrics for advanced microelectronic devices (1998)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 83 (1998), S. 2327-2337 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Direct and Fowler–Nordheim tunneling currents through oxide and dual layer silicon oxide–silicon nitride dielectrics are investigated for substrate and gate injection. The calculations include depletion effects in the heavily doped (n+) polysilicon gate electrodes as well as quantization effects in the less heavily doped n-type substrates. The Wentzel–Kramers–Brillouin (WKB) effective mass approximation has been compared with exact calculations for the tunneling probability, and based on these comparisons it has been found that the WKB approximation is adequate for single layer dielectrics, but is not for the dual layer dielectrics that are the focus of this article. Using exact tunneling transmission calculations, current-voltage (I–V) characteristics for ultrathin single layer oxides with different thicknesses (1.4, 2.0, and 2.3 nm) have been shown to agree well with recently reported experiments. Extensions of this approach demonstrate that direct tunneling currents in oxide/nitride structures with oxide equivalent thickness of 1.5 and 2.0 nm can be significantly lower than through single layer oxides of the same respective thickness. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.366976
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Kinetics of NiAl3 growth induced by steady-state thermal annealing at the Ni-〈Al〉 interface (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 62 (1987), S. 1821-1825 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Substrates of large grained aluminum crystals were prepared by the strain annealing technique, and Ni films were vacuum evaporated on these substrates after an in situ sputter cleaning process. Upon thermal annealing of samples in vacuum, a laterally uniform growth of NiAl3 is observed, starting from 330 °C, without any indication of boundary diffusion effects. The aluminide phase grows as (duration)1/2 after an initial incubation period with an activation energy of 1.4 eV, i.e., K=x2/t=0.387 (cm2/s)exp(−1.4 eV/kT) for 600 K〈T〈650 K. Impurities, either at the interface or inside the Ni film, retard this reaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.339563
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    PHOSPHOPROTEIN PHOSPHATASE OF PINEAL GLAND: SOME PROPERTIES OF THE ENZYME AND THE IDENTIFICATION OF AN ENDOGENOUS ACTIVATOR (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 28 (1977), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— Both soluble and insoluble fractions of rat pineal glands catalyze the dephosphorylation of phosphohistone. The phosphoprotein phosphatase in cytosol as well as in insoluble fraction is inhibited by ZnCl2 and NaF. Guanosine triphosphate, ATP and MnCl2 activate the soluble enzyme but not the enzyme in the insoluble fraction suggesting that with solubilization from membranes some unfunctional changes of the enzyme may occur. Fractionation of the soluble enzyme preparation revealed the existence of two forms of enzyme differing in molecular weight. These two forms can be further differentiated by their sensitivities to MnCl2 and deoxycholate. A thermostable factor which activates the soluble but not the insoluble enzyme was demonstrated in both beef and rat pineal glands. The thermostable factor is protein in nature because it is nondialyzable and trypsin labile. Whether in vivo the endogenous activator mediates the regulation of the phosphoprotein phosphatase in pineal remains to be investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1977.tb10671.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    PROPERTIES OF MONOAMINE OXIDASES IN SYMPATHETIC NERVE AND PINEAL GLAND (1972)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 19 (1972), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— The monoamine oxidases (MAO) of rat pineal gland and superior cervical ganglion were compared and found to have different characteristics. The predominant enzyme in the ganglion was inhibited by low concentrations of clorgyline (0.1 μM), exhibited a lower apparent Km for tyramine than the enzyme in the pineal, was readily inactivated by trypsin, and was relatively heat-stable. In contrast, the MAO of the pineal was inhibited by 0.1 mm clorgyline, was not readily inactivated by trypsin, and was heat-labile. Moreover, these enzymes appeared to have different substrate specificities. Our results are consistent with the view that there may be multiple forms of MAO and that these forms may be associated with specific cell types.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1972.tb01450.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    DISTRIBUTION AND PROPERTIES OF ANGIOTENSIN CONVERTING ENZYME OF RAT BRAIN (1972)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 19 (1972), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— Angiotensin converting enzyme of rat brain was studied using Hip-His-Leu as substrate. The highest specific activity of the enzyme was associated with the microsomal fraction. The specific activity of the microsomal enzyme in several regions of the rat brain varied significantly. For example, the specific activities of the striatal and pituitary enzymes were about 10-fold greater than that of the cerebral cortical enzyme. The enzyme required chloride ion; moreover, activity was inhibited in the presence of disodium EDTA or O-phenanthroline, effects suggesting that the converting enzyme of brain is a metalloprotein. SQ-20881, a nonapeptide that inhibits converting enzyme in peripheral tissue, was a potent inhibitor of the enzyme of brain. In addition to Hip-His-Leu, the microsomal fraction was capable of liberating C terminal dipeptides from angiotensin I, Hip-Gly-Gly and Z-Gly- Gly-Val. The broad substrate specificity of the enzyme suggests that, in addition to the possible contribution of the enzyme to the brain renin-angiotensin system, other naturally occurring peptides might also be substrates for the enzyme.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1972.tb01298.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Differential distribution of angiotensin converting enzyme in the anterior and posterior lobe of the rat pituitary (1973)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 21 (1973), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1973.tb07554.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Mechanism of enhanced formation of C54–TiSi2 in high-temperature deposited Ti thin films on preamorphized (001)Si (1999)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 74 (1999), S. 224-226 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Enhanced formation of C54-TiSi2 in high-temperature deposited Ti thin films on preamorphized (001)Si has been investigated by high-resolution transmission electron microscopy in conjunction with autocorrelation function analysis. The increase in the thickness of the amorphous TiSix layer is due to the preamorphization implantation for the most part. The dominant effect of high-temperature sputtering is to increase the density of crystallites in the amorphous TiSix layer. The enhanced formation of C54–TiSi2 in high-temperature deposited samples is attributed to the more extensive presence of silicide crystallites, which serve as nucleation sites, in the amorphous TiSix layer than that in samples deposited at room temperature. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.123300
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Mode of Action of Vitamin K5 on Saccharomyces Cerevisiae (1965)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 30 (1965), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: In this study, the mode of action of vitamin K5 was investigated with Saccharomyces cerevisiae the test organism.Cysteine hydrochloride antagonized the anti-fungal action of vitamin K, suggesting that the vitamin has an affinity for sulfhydryl groups, which are necessary for the activity of certain enzymes. The sulfhydryl groups of yeast cells were reduced quantitatively when they were exposed to vitamin K5.Furthermore, studies showed that dehydrogenase was inactivated by vitamin K5.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1965.tb00282.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Fruit Wines, Requisites for Successful Fermentation (1953)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 1 (1953), S. 331-333 
    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/jf60004a011
    Library Location Call Number Volume/Issue/Year 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...