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  • 1
    Electronic Resource
    Electronic Resource
    Sexual status of Paralabrax humeralis (Serranidae) and infection by Philometra sp. (Nematoda: Dracunculoidea) (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 40 (1992), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Evidence is presented that Philometra sp. infects Paralabrax humeralis only after first maturity
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1992.tb02645.x
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  • 2
    Electronic Resource
    Electronic Resource
    Metazoan parasites of Macruronus magellanicus from southern Chile as biological tags (2001)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 58 (2001), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Examination of 450 specimens of Macruronus magellanicus from two fishing grounds in southern Chile (Talcahuano: 36°40'S, Punta Arenas: 54° S) revealed 24 205 metazoan parasites, belonging to 15 taxa with low specificity: Chondracanthus australis and Neobrachiella sp. (Copepoda); Elytrophalloides oatesi, Gonocerca phycidis, Derogenes varicus and Brachyphallus parvus, (Digenea); Hepatoxylon trichiuri, Scolex pleuronectis, Clestobothrium crassiceps, Grillotia dollfusi, Pseudophyllidea gen. sp. (Cestoda); Anisakidae, Cucullanus sp. (Nematoda), Corynosoma australe and Acanthocephala gen. sp. (Acanthocephala). The list includes parasites that are common to other merluccids from the zone. The parasitological evidence does not suggest the existence of two discrete stocks, but the existence of a migratory process from south to north.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.2001.tb02316.x
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  • 3
    Electronic Resource
    Electronic Resource
    Variations des pigments carotenoides totaux dans i'ovaire et i'hepatopancreas de Penaeus schmitti au cours de la maturation ovarienne
    Amsterdam : Elsevier
    Biochemical Systematics and Ecology 16 (1988), S. 431-436 
    Details
    ISSN: 0305-1978
    Keywords: Crustacea ; Penaeus schmitti ; carotenoid pigments ; hepatopancreas ; ovaries ; sexual development
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0305-1978(88)90040-3
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  • 4
    Electronic Resource
    Electronic Resource
    After effects of orbital electron capture in Co spinels
    Amsterdam : Elsevier
    Solid State Communications 30 (1979), S. 645-650 
    Details
    ISSN: 0038-1098
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0038-1098(79)90114-5
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  • 5
    Electronic Resource
    Electronic Resource
    Discovery of a Gravettian mammoth bone hut at Milovice (Moravia, Czechoslovakia)
    Amsterdam : Elsevier
    Journal of Human Evolution 17 (1988), S. 787-790 
    Details
    ISSN: 0047-2484
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0047-2484(88)90066-8
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  • 6
    Electronic Resource
    Electronic Resource
    Metazoan parasites of Sebastes capensis from two localities in northern Chile as tools for stock identification (2004)
    Oxford, UK; Malden , USA : Blackwell Publishing Ltd/Inc
    Journal of fish biology 64 (2004), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Examination of 290 red rockfish Sebastes capensis from two fishing grounds in northern Chile (Coquimbo 71°30′ W; 30°0′ S and Antofagasta 70°40′ W; 23°30′ S) revealed 8770 metazoan parasites, belonging to 18 taxa: Udonella caligorum(Udonellidae); Interniloculus chilensis, Paramicrocotyle sp. and Neobenedenia melleni(Monogenea); larval Gnathia sp., Cirolana sp. and Rocinela sp. (Isopoda); Helicometrina nimia, Diphtherostomum sp., Lecithochirium sp. and Pseudopecoelus sp. (Digenea); Ascarophis sebastodis, Anisakis sp. and larval Hysterothylacium sp. (Nematoda); Caligus cheilodactylus, Lepeophtheirus chilensis and Trifur tortuosus(Copepoda); larval Corynosoma australe(Acanthocephala). Ten species were found only in Coquimbo and three were found only in Antofagasta, species common to both localities were Pseudopecoelus sp., C. australe, Anisakis sp. and A. sebastodis. Evidence, based on qualitative differences between the parasite faunas of the red rockfish, suggests the existence of two discrete stocks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.2004.00295.x
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  • 7
    Electronic Resource
    Electronic Resource
    MHC CLASS I AND II ANTIGENS ON GASTRIC CARCINOMAS AND AUTOLOGOUS MUCOSA (1989)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 16 (1989), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The expression of HLA class I and II antigens was analysed in 30 primary gastric carcinomas, 27 autologous lymph node metastases and 25 autologous gastric mucosae. We used an immune alkaline phosphatase technique on cryostatic sections and mAbs directed against HLA class I monomorphic determinants, HLA-B locus-specific products and HLA-DR, -DP and -DQ molecules. In addition HLA class I genes were analysed in tumour tissue and compared by Southern blots with the RFLP from autologous mucosa using locus-specific HLA probes. Finally the infiltrating mononuclear cells were studied on gastric tumours and adjacent mucosa with mAbs defining CD4, CD8 and CD11b differentiation antigens.The results obtained showed that three out of 27 primary gastric carcinomas completely lack HLA-ABC antigens (10%). In addition, two primary tumours presented a variable expression. The remaining 22 tumours presented a homogeneous positive HLA class I expression. Interestingly, when the autologous mucosa was analysed, only 12 out 25 specimens were homogeneously stained with mAbs against HLA class I antigens, suggesting that this tissue may lack the expression of HLA antigens before becoming malignant. Indeed, the majority of the gastric carcinomas studied presented a higher HLA-ABC antigenic expression than autologous mucosa. Finally, the HLA expression observed in the primary tumour was similar to that observed in autologolous metastases.As a second part of the study we have found a direct relationship between the expression of HLA-DR antigens in mucosa and the intensity of inflamatory infiltration. This relationship was not maintained in the tumour tissue. In the mucosa the CD4-positive T cell was the predominant lymphocyte, while it was CD8 in the HLA-DR-positive tumours.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1989.tb00489.x
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  • 8
    Electronic Resource
    Electronic Resource
    Preliminary crystallographic studies of EcTI, a serine proteinase inhibitor from Enterolobium contortisiliquum seeds (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 602-604 
    Details
    ISSN: 1399-0047
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Enterolobium contortisiliquum trypsin inhibitor (EcTI) belongs to the Kunitz family of plant inhibitors, which are widely distributed in nature, especially in plant seeds. EcTI is composed of two polypeptide chains with a total of 174 residues, homologous to other inhibitors from the same family. EcTI crystals, which were obtained with the acupuncture-gel technique, diffract to 2.0 Å resolution and belong to space group P21, with unit-cell parameters a = 37.12, b = 38.42, c = 54.08 Å, β = 98.08°. Molecular-replacement techniques using Erythrina caffra trypsin inhibitor (PDB code 1tie) as the search model indicate one monomer in the asymmetric unit. The secondary-structure content of EcTI was determined by circular dichroism spectroscopy, yielding values compatible with the expected topology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0907444901001810
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  • 9
    Electronic Resource
    Electronic Resource
    Leaf gas exchange in a clonal eucalypt plantation as related to soil moisture, leaf water potential and microclimate variables (2000)
    Springer
    Trees 14 (2000), S. 263-270 
    Details
    ISSN: 0931-1890
    Keywords: Key words  Eucalyptus grandis ; Leaf water potential ; Net photosynthetic rate ; Stomatal conductance ; Water supply
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  In order to determine how environmental and physiological factors affect leaf gas exchange in a 9-year-old clonal eucalypt plantation (Eucalyptus grandis Hill ex. Maiden hybrids) in the State of Espirito Santo, Brazil, the diurnal patterns of predawn leaf water potential (Ψpd), and leaf gas exchange were monitored from November 1995 to August 1996. Soil water content (Θ) and microclimatic variables were also recorded. Most of the rainfall during the experimental period occurred from October to December 1995 and from March to April 1996, causing a significant variation in Θ and Ψpd. A high positive correlation (r 2=0.92) was observed between Ψpd and Θ measured at 0.3 m depth from the soil surface. During conditions of high soil water availability, the maximum values of stomatal conductance for water vapor (g s) and net photosynthetic rate (A) were over 0.4 mol m–2 s–2 and l5 µmol m–2 s–1, respectively. The results showed that Ψpd and leaf gas exchange of the examined trees were susceptible to changes in the water content of the upper soil layers, where the major concentration of active roots occur. Multiple linear regression analysis indicated that photosynthetic active radiation (Q), vapor pressure deficit (VPD), atmospheric CO2 molar fraction (C a), and Ψpd were the most important factors controlling g s whereas Q and VPD were the main microclimatic variables controlling A.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004680050012
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  • 10
    Electronic Resource
    Electronic Resource
    Stomatal control of transpiration in the canopy of a clonal Eucalyptus grandis plantation (1999)
    Springer
    Trees 13 (1999), S. 152-160 
    Details
    ISSN: 0931-1890
    Keywords: Key words Eucalyptus grandis ; Transpiration ; Stomatal conductance ; Leaf water potential ; Moderate water deficit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  Predawn leaf water potential, stomatal conductance and microclimatic variables were measured on 13 sampling days from November 1995 through August 1996 to determine how environmental and physiological factors affect water use at the canopy scale in a plantation of mature clonal Eucalyptus grandis Hill ex-Maiden hybrids in the State of Espirito Santo, Brazil. The simple ”big leaf” Penman-Monteith model was used to estimate canopy transpiration. During the study period the predawn leaf water potential varied from –0.4 to –1.3 MPa, with the minimum values observed in the winter months (June and August 1996), while the average estimated values for canopy conductance and canopy transpiration fell from 17.3 to 5.8 mm s–1 and from 0.54 to 0.18 mm h–1, respectively. On the basis of all measurements, the average value of the decoupling coefficient was 0.25. During continuous soil water shortage a proportional reduction was observed in predawn leaf water potential and in daily maximum values of stomatal conductance, canopy transpiration and decoupling coefficient. The results showed that water vapour exchange in this canopy is strongly dominated by the regional vapour pressure deficit and that canopy transpiration is controlled mainly by stomatal conductance. On a seasonal basis, stomatal conductance and canopy transpiration were mainly related to predawn leaf water potential and, thus, to soil moisture and rainfall. Good results were obtained with a multiplicative empirical model that uses values of photosynthetically active radiation, vapour pressure deficit and predawn leaf water potential to estimate stomatal conductance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00009746
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