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  • 1995-1999  (1,440)
  • 1975-1979  (69)
  • 1996  (743)
  • 1995  (697)
  • 1978  (69)
  • 1
    Unknown
    The Universe at High-z, Large-Scale Structure and the Cosmic Microwave Background : Proceedings of an Advanced Summer School Held at Laredo, Cantabria, Spain, 4–8 September 1995 (1996)
    Berlin ; Heidelberg : Springer
    Details
    ISBN: 9783540612254
    URL: http://www.springerlink.com/openurl.asp?genre=book&isbn=978-3-540-61225-4
    Language: English
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  • 2
    Electronic Resource
    Electronic Resource
    Synthesis of substituted 1-norbornylamines with antiviral activity. (1995)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 38 (1995), S. 4474-4477 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00022a012
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Photoacoustic Monitoring of Processing Conditions in Cooked Tortillas: Measurement of Thermal Diffusivity (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 60 (1995), 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: The thermal diffusivity and conductivity of cooked tortillas processed under different conditions were measured at room temperature using a proposed open-photoacoustic cell (OPC) detection technique. Samples were cut from cooked tortillas and exposed to air for different times prior to measurements. Variations in thermal diffusivity inversely correlated with cooking time. Lime appeared to increase the degree of crosslinking, raising thermal diffusivity and decreasing cooking time. By careful process modification a measure of control could be used to improve the heat conduction properties of tortillas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1995.tb09798.x
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  • 4
    Electronic Resource
    Electronic Resource
    Structure and absolute configuration of (12S,13S)-8,12;12,15-diepoxy-13-bromolabdane (1978)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 34 (1978), S. 1381-1383 
    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/S0567740878005671
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  • 5
    Electronic Resource
    Electronic Resource
    An acylcyclohexadione retardant inhibits gibberellin A1 metabolism, thereby nullifying phytochrome-modulation of cowpea epicotyl explants (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 94 (1995), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The regulation by phytochrome of stem elongation in light-grown plants depends on gibberellins (GAs). To investigate whether this is mediated by a change in GA metabolism, the effect of the GA biosynthesis inhibitor LAB 198 999 (an acylcyclohexadione derivative) on the end-of-day far-red (FR) response in cowpea (Vigna sinensis L.) epicotyl explants has been investigated. Growth of epicotyl explants of light-grown seedlings was enhanced when treated with far-red light before incubation in the dark (end-of-day FR effect). Low doses of LAB 198 999 (0.05 and 0.5 μg explant−1) reduced the effect of FR, whereas 5 to 50 μg explant−1 stimulated elongation of both red light (R)- and FR-treated epicotyl explants while nullifying the differences between R and FR treatments. In paclobutrazol-treated epicotyl explants, FR enhanced the response to applied GA1 and GA20, whereas LAB 198 999 increased the activity of GA1 and decreased that of GA20, [3H]Gibberellin A1, injected into the basal part of the epicotyl, was transported and metabolized mainly to [3H]GA8 in the apical 20 mm of the epicotyl. The conversion of [3H]GA1 to [3H]GA8 was dramatically reduced by both end-of-day FR treatments and LAB 198 999 applications. In addition, both treatments enhanced epicotyl elongation. It is proposed that the regulation of cowpea epicotyl growth by phytocrome is mediated, at least partially, by modifying GA1 degradation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1995.tb00988.x
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  • 6
    Electronic Resource
    Electronic Resource
    Molecular evidence supporting the existence of two major groups in uropathogenic Escherichia coli (1996)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 14 (1996), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract Molecular methods allow an extremely fine strain typing that can be used to establish the population structure of bacterial species. This methodology has been used to characterize a collection of 74 uropathogenic Escherichia coli obtained from three hospitals located in geographically distant towns in Spain, some representatives of the ECOR collection and other reference strains. Genomic DNA was analyzed by RAPD (Random Amplified Polymorphic DNA) that can characterize a bacterial strain to the level of defining individual clones. The 16S rDNA-23S rDNA spacers were amplified by PCR and submitted to restriction analysis. Finally, the presence or absence of G adhesins in Escherichia coli as well as the type of adhesin (three types are known) have been shown by PCR amplification followed by digestion with restriction enzymes. As expected a wide diversity was shown by RAPD and identical patterns were only found in the case of strains isolated from the same individual, an obvious case of relapse. Analysis of the spacers' restriction patterns showed the presence of two markedly differentiated clusters that we have named α and ß. Both RAPD and spacer restriction patterns originated similar clusters of strains showing a consistency in the evolution of the global genome with the sequence variation of the ribosomal spacers. Furthermore, most of the strains having G-adhesin, with only a few exceptions, corresponded to the α rRNA spacer group. The two spacer types detected were also consistent with some phenotypic markers such as sucrose and raffinose utilization. The α and β clusters could be intraspecific groups produced by partial sexual isolation or other barriers that are originating a divergent evolution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-695X.1996.tb00291.x
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  • 7
    Electronic Resource
    Electronic Resource
    Biosynthesis and characterization of poly(β-hydroxybutyrate) produced byBacillus circulans (1996)
    Springer
    Polymer bulletin 37 (1996), S. 429-435 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The biosynthesis of poly (β-hydroxybutyrate) (PHB) byBacillus circulans was carried out through cultivation in nutrient broth in a single step. $$\overline {\text{M}} {\text{v}}$$ of polymer fractions soluble in chloroform were close to 2 x 105. IR,1H and13C NMR spectra of the isolated PHB were in agreement with the assumed structure of this poly-β-hydroxyester. NMR spectroscopy pointed out a high percentage of isotactic polymer, while differential scanning calorimetry showed that the PHB was crystalline.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00556801
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  • 8
    Electronic Resource
    Electronic Resource
    Preparation, spectral studies, and X-ray crystal structures of (16S, 17R, 20S)-3-oxo-16-hydroxy-25-nor-lanostan-24-oic lactone (II) and (16S, 17R, 20S)-4,16-dihydroxy-25-nor-3,4-seco-lanostan-3,24-dioic acid dilactone (III) (1995)
    Springer
    Journal of chemical crystallography 25 (1995), S. 331-337 
    Details
    ISSN: 1572-8854
    Keywords: Guayule ; Parthenium ; triterpenes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The crystal and molecular structures of the title compounds have been determined by direct methods, and refined to a finalR of 0.059 forII and 0.046 forIII. Both molecules crystallize in space group P212121. The cell dimensions forII area=10.096(5),b=11.255(3),c=20.300(7) Å;Z=4,D x=1.188 g cm−3, μ(MoKα)=0.70 cm−1, while the cell dimensions forIII area=7.346(1),b=10.470(3),c=30.546(5) Å;Z=4,D x=1.212 g cm−3, μ(MoKα)=0.74 cm−1. The rings of the triterpene skeletons aretrans-cis-trans-cis connected. The conformations of both molecules are discussed. Also the preparation and the spectral data of (17R, 20S)-3,16-dioxo-25-nor-lanostan-24-oic acid (V) and (17R, 20S)-3,16,24-trioxo-25-hydroxy-16,24-seco-lanostan-25-acetate (VI) are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01796059
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  • 9
    Electronic Resource
    Electronic Resource
    Retrograde evolution of quartz segregations from the Dos Picos shear zone in the Nevado-Filabride Complex (Betic chains, Spain). Evidence from fluid inclusions and quartz c-axis fabrics (1995)
    Springer
    International journal of earth sciences 84 (1995), S. 175-186 
    Details
    ISSN: 1437-3262
    Keywords: Betic chain ; Shear zones ; Quartz veins ; C-axis fabrics ; Fluid inclusions ; Extensional tectonics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Synkinematic quartz veins are ubiquitous in the shear zone separating the Veleta unit from the Calar Alto unit in the internal part of the Betic Cordilleras. They have been studied with respect to quartz c-axis fabrics, microstructures and fluid inclusions. Veins were probably generated during syn-metamorphic stacking of the units at P = 500 − 600 MPa and T = 400 − 500°C. Quartz displays two groups of microstructures in the shear zone: (1) older coarse-grained mosaics (CGM) resulting from exaggerated grain growth; and (2) younger fine-grained mosaics (FGM) developed at the expense of the former. The fine-grained mosaics show polygonal granoblastic and elongate mosaic microstructures in general, with ribbon microstructures often found near the boundary of the units. Fluids contained in secondary inclusions vary from high salinity brines to different types of CO2—brine mixtures and low density CO2 fluids. Differences in composition and P-T trapping conditions are indicated for the different types of inclusions. Some fluid inclusions are older than the FGM, whereas others are younger, thus constraining the P- T conditions at which the two microstructural events took place. Fluid inclusion evidence suggests conditions of Pfluid 〉 170 MPa and T ≧ 370−430°C for the CGM and Pfluid ≧ 20−80 MPa and T 〉 340°C for the FGM. The quartz c-axis fabrics dealt with here correspond to the second recrystallization event, as little evidence of older fabrics is preserved in the shear zone. C-axis patterns vary across the shear zone from slightly asymmetrical type I crossed girdles in the hanging wall and footwall to more asymmetrical crossed girdles at the boundary of the units. This indicates a correlative increase in the magnitude of the heterogeneous shear strain in the same direction. Most of the deformation is concentrated at the top of the Veleta unit. The sense of movement is top to the west, in agreement with other kinematic markers. The quartz c-axis fabrics resulted from dynamic recrystallization during simple shear. The retrograde P-T path inferred from fluid inclusion analysis, along with other geological and geochronological evidence, indicates that this deformation is coeval with a reduction in the crustal overburden. Geochronological and stratigraphic data show that the proposed Dos Picos extensional detachment, separating the Calar Alto and Veleta units, took place during the early Miocene, synchronous with the intense thinning of the Nevado-Filábride Complex and of the whole continental crust underlying the Alborán Basin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00192249
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  • 10
    Electronic Resource
    Electronic Resource
    Estudio de la patogenicidad de conidiobolus Coronatus en animales de experimentacion (1978)
    Springer
    Mycopathologia 66 (1978), S. 59-65 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Resumen A partir de una cepa de Conidiobolus coronatus aislada de Aenolamia postica, se inocularon 152 ratones, 42 cobayos y 47 hamsters por vías intraperitoneal (IP), subcutánea (SC), intratraqueal y por escarificación en la mucosa oral; cada animal se inoculó 3 veces a intervalos de una semana. Los animales se sacrificaron a los 1, 8, 15, 45 y 225 días de la primera inoculación, haciéndose estudios de alteraciones macroscópicas (nódulos, abscesos, adherencias), exámenes directos, cultivos e histopatología. Las alteraciones macroscópicas de los tejidos fueron las más frecuentes y todas evolucionaron a la curación espontánea. Los animales presentaron un mayor múmero de estudios positivos cuando se inocularon por vía IP y SC. Los estudios histopatológicos hechos al 1° y 8° día, demostraron un infiltrado inflamatorio agudo y filamentos fúngicos bien conservados; a los 15 días se observaron granulomas con células gigantes y filamentos fragmentados en desintegración; a los 45 y 225 días se observó una reacción de fibrosis sin filamentos fúngicos. Se consideró que en ningún caso se logró reproducir la rinoentomoftoromicosis y de acuerdo a éstos resultados se estima que esta cepa no tiene patogenicidad o bien ésta es muy baja.
    Notes: Abstract The pathogenicity of a strain of Conidiobolus coronatus isolated from Aenolamia postica was investigated in 152 mice, 42 guinea pigs and 47 hamsters. Four routes of inoculation were used: intraperitoneal, subcutaneous, intratracheal and scarification in the oral mucosa. Each animal was inoculated 3 times at 3 week intervals. Animals were sacrificed at 1, 8, 15, 45 of 225 days after the first inoculation. Observations of macroscopic lesions (nodules, abscesses, adhesions, etc.) direct examinations, cultures and histopathological studies of different tissues were performed. The aforementioned lesions of tissue were the most frequently found and all of them were resolved by spontaneous cure. The animals inoculated intraperitoneally and subcutaneouslly presented the highest number of positive results. The histopathological features at the 1st and 8th days after inoculation showed an acute inflamatory infiltrate with well preserved fungus filaments; at the 15th day granulomas with giant cells were observed containing fragmented and disintegrated fungal hyphae; at the 45th and 225th days a fibrosis reaction was observed and no fungal filaments, could be found. In no animal was rhinoentomophthoromycosis never reproduced, and according to these results it is considered that either this strain is not a pathogen or its pathogenicity is very low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429594
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