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  • 1
    Electronic Resource
    Electronic Resource
    Quantitative x-ray magnetic circular dichroism microspectroscopy of Fe/Co/Cu(001) using a photoemission microscope (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 5747-5749 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Photoelectron emission microscopy is combined with soft x-ray magnetic circular dichroism (XMCD) absorption spectroscopy to obtain local element-resolved quantitative magnetic properties with microscopic resolution. This is applied to study 0–14 ML Fe wedges with a slope of 0.055 ML/μm on 6 ML Co/Cu(001). Local XMCD spectra at the Fe L2,3 edge confirm the presence of three magnetically different thickness regions of Fe with effective spin moments of 2.5μB (0–4.5 ML), 0.7μB (4.5–11 ML), and 1.8μB (〉11 ML). The value of 0.7μB in the second phase is consistent with an fcc Fe phase containing nonferromagnetic layers underneath a ferromagnetic surface. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.372509
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  • 2
    Electronic Resource
    Electronic Resource
    Magnetic anisotropy and interlayer exchange coupling in the sputtered Co/Ag multilayers (1995)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 78 (1995), S. 5549-5553 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The in-plane uniaxial anisotropy and perpendicular anisotropy of sputtered Co/Ag(111) multilayers have been investigated by magnetic measurements and the in-plane ferromagnetic resonance (FMR) technique. The data-fitting analysis for the FMR experimental results about the angular dependence of the resonance field shows that the in-plane anisotropy cannot be fully described by only using the first-order term, and the second-order term must be included. Furthermore, the interface-induced anisotropy has been obtained by FMR. Both ferromagnetic and antiferromagnetic couplings have been revealed by hysteresis loop measurement. Specifically, a spin-flip phase transition has been observed in the sputtered Co/Ag(111) multilayers, which is attributed to the effects of the AF-coupling and in-plane uniaxial anisotropy. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.359675
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  • 3
    Electronic Resource
    Electronic Resource
    Optical and magneto-optical properties of Co(001)/Ge/Co sandwiches (1996)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 69 (1996), S. 3923-3925 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A series of bcc-Co(001)/Ge/Co trilayers was grown on a GaAs(001) substrate by the molecular beam epitaxy technique. The optical and magneto-optical properties of the samples were studied. An oscillatory variation of the magneto-optical Kerr effect (MOKE) with the thickness of the Ge spacers was observed. We conclude that the effective optical constants as well as the real and imaginary off-diagonal element of the dielectric tensor should be considered in explanation of the MOKE activities since both have a large influence on the MOKE oscillations. Moreover, the coercivity and magnetization also oscillate with the Ge layer thickness. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.117571
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  • 4
    Electronic Resource
    Electronic Resource
    Hyperhomocyst(e)inemia as a Risk Factor for Occlusive Vascular Disease (1992)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Nutrition 12 (1992), S. 279-298 
    Details
    ISSN: 0199-9885
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.nu.12.070192.001431
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  • 5
    Electronic Resource
    Electronic Resource
    Analysis of Steroid-Induced Genes in the Rat Preoptic Area-Anterior Hypothalamus Using a Differential-Display Reverse Transcriptase-Polymerase Chain Reaction (2001)
    Oxford, UK : Blackwell Science, Ltd
    Journal of neuroendocrinology 13 (2001), S. 0 
    Details
    ISSN: 1365-2826
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Steroid hormones modulate a variety of physiological functions in the hypothalamus. We attempted to identify steroid-regulated genes in the rat preoptic area-anterior hypothalamus by comparing differentially expressed mRNAs. Adult female rats were ovariectomized and, 1 week later, a silastic capsule containing 17β-oestradiol (180 µg/ml) was subcutaneously implanted. After 2 days, a single injection of progesterone (1 mg) was administered at 10.00 h and rats were killed at 17.00 h on the same day. Differential-display polymerase chain reaction followed by Northern blot analysis showed that 10 clones were differentially regulated. Using homology search in Genbank, three genes were identified as sodium, potassium-ATPase β1, protein kinase C-binding Nell-homologue protein and evectin-1. Further characterization of 10 clones showed that the expression patterns were tissue-specific and differentially regulated during puberty. Among these, mRNAs for protein kinase C-binding Nell-homologue protein, evectin-1 and human CGI-118 protein-like gene were induced after vagina opening, and differentially expressed during the oestrous cycle. Taken together, several steroid-regulated genes identified in the present study may play an important role in regulating hypothalamic functions, including puberty and the oestrous cycle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2826.2001.00665.x
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  • 6
    Electronic Resource
    Electronic Resource
    Structure of 12β-benzoyloxy-3β,8β,14β,17β-tetrahydroxy-5-pregnene-20-one (1990)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 46 (1990), S. 1069-1071 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270189006062
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  • 7
    Electronic Resource
    Electronic Resource
    Structure of the quasicystal-approximant phase Al61.3Cu7.4Fe11.1Cr17.2Si3 (1992)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 48 (1992), S. 770-776 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768192005226
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  • 8
    Electronic Resource
    Electronic Resource
    The development of retinopathy in sucrose-fed and streptozotocin-diabetic rats (1976)
    Springer
    Diabetologia 12 (1976), S. 367-374 
    Details
    ISSN: 1432-0428
    Keywords: Sucrose-diet ; streptozotocin-diabetes ; retinopathy ; rats ; trypsin digests
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Normal and streptozotocin-diabetic rats have been maintained for 6–11 months on completely balanced, reconstituted diets in which the sole source of carbohydrate was either 68% corn starch or 68% sucrose. The retinal vascular system was isolated by trypsin digestion and examined histologically for the presence of tortuosity and irregularity of capillary diameter, increased PAS-positive deposits, microaneurysms, loss of pericytes, endothelial proliferation, acellularity and strand formation. None of these pathological changes occurred in normal rats fed a starch-rich diet, but all developed to a similar extent in the sucrose-fed normal rats and the starch-fed diabetic group. The changes were more severe in sucrose-fed diabetic rats after 6 months. In all groups the retinopathy progressed with time. The possibility that a factor common to both the ingestion of a sucrose-rich diet and streptozotocin diabetes in rats has been considered since, histologically, the retinopathy observed was identical both with respect to severity and rate of development in normoglycaemic, sucrose-fed and hyperglycaemic, starch-fed diabetic rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00420981
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  • 9
    Electronic Resource
    Electronic Resource
    Modification of the glomerular basement membrane in sucrose-fed and streptozotocin-diabetic rats (1980)
    Springer
    Diabetologia 19 (1980), S. 364-372 
    Details
    ISSN: 1432-0428
    Keywords: Glomerular basement membrane ; sucrose diet ; streptozotocin diabetes ; rat kidney glucosyltransferase ; glucosamine ; galactosamine ; GlcGal-Hyl
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Rats were fed on diets containing either sucrose or starch as the carbohydrate component (55%) for eight months. Diabetes was induced in animals of both groups by injecting streptozotocin (50 mg/kg body weight). Diabetic rats failed to gain weight, had enlarged kidneys, polyuria and elevated blood glucose levels. Starch and sucrose fed rats gained weight normally and had normal blood glucose levels. Sucrose fed rats had enlarged kidneys. Regional thickening of the glomerular basement membrane was present in sucrose-fed and diabetic rats but not in starch-fed controls. Glomerular basement membrane isolated from pooled kidney cortices from rats in the different experimental groups were analysed for amino acid, disaccharide and hexosamine content. Hydroxylysine (9 to 20%), hydroxyproline (21 to 24%), disaccharide (27%) and hexosamine (26%) were increased in membranes insolated from the three experimental groups, compared with starch-fed non-diabetic controls. An increase in low molecular weight components of the glomerular basement membrane of sucrose-fed and diabetic rats was observed using electrophoresis in sodium dodecyl sulphate. Significantly higher (p〈0.001) glucosyltransferase activity was present in kidney supernatants prepared from sucrose-fed (1050±60 nmol/2 h/kidney) compared to starch-fed rats (510±40 nmol/2 h/kidney). Sucrose feeding induces changes similar to those found in diabetes and the induction of diabetes made little difference over the feeding of sucrose alone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00280522
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  • 10
    Electronic Resource
    Electronic Resource
    Glucose, glucose-6-phosphate, lactate and pyruvate content of the retina, blood and liver of streptozotocin-diabetic rats fed sucrose- or starch-rich diets (1975)
    Springer
    Diabetologia 11 (1975), S. 57-62 
    Details
    ISSN: 1432-0428
    Keywords: Streptozotocin-diabetes ; retina ; liver hypertrophy ; sucrose diet ; lactate-pyruvate ratio ; glucose-6-phosphate ; glucose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The feeding of starch- or sucrose-rich diets to normal rats for 20 days resulted in a significant increase in lactate level and L/P ratio in the retina in the sucrose-fed animals. There was no correlation between the glucose and lactate content of the blood and retina and it was concluded that the increased lactate content of the retina was derived from the fructose moiety of the sucrose. Liver hypertrophy occurred in both normal and diabetic animals fed the sucrose diet. When streptozotocin-diabetic rats were maintained for 20 days on the same diets significant increases in the lactic acid content of the blood and liver occurred, but the high level of lactate in the retina of the sucrose-fed normal rats was not further elevated. The feeding of sucrose to diabetic rats resulted in better metabolic control of both blood glucose and lactate as compared with the maintenance of these animals on a starch diet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00422819
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