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  • 1
    Electronic Resource
    Electronic Resource
    Intake of olive oil can modulate the transbilayer movement of human erythrocyte membrane cholesterol (1997)
    Springer
    Cellular and molecular life sciences 53 (1997), S. 496-500 
    Details
    ISSN: 1420-9071
    Keywords: Key words. Dietary fat; olive oil; high-oleic sunflower oil; cholesterol movement; cholesterol membrane; erythrocyte.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Transbilayer movement of erythrocyte membrane cholesterol is impaired in patients affected with essential hypertension. This is an inherited disorder, but environmental factors are also involved. Dietary fats might play a role in the prevention and/or treatment of such abnormality in the kinetic pools of membrane cholesterol. We tested this hypothesis by using a diet (in which 30% of the energy came from fat) rich in olive oil or in high-oleic sunflower oil (as natural sources of monounsaturated fatty acids, MUFAs) and determining their influence on the movement of cholesterol into the lipid bilayer of the erythrocyte membrane after a four-week period. We concluded that dietary olive oil is helpful in normalizing the impaired transbilayer movement of membrane cholesterol in erythrocytes of eight normocholesterolaemic and eight hypercholesterolaemic hyperten sive patients. However, the effects cannot be attributed exclusively to the content of MUFAs (mainly oleic acid) in the diet, as high-oleic sunflower oil was unable to induce favourable changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s000180050061
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  • 2
    Electronic Resource
    Electronic Resource
    Determination of fatty acid and triacylglycerol composition of human adipose tissue
    Amsterdam : Elsevier
    Journal of Chromatography B: Biomedical Sciences and Applications 581 (1992), S. 171-178 
    Details
    ISSN: 0378-4347
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0378-4347(92)80269-V
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  • 3
    Electronic Resource
    Electronic Resource
    Intermodulation measurement of nonlinearities in piezoceramic resonators (1997)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 68 (1997), S. 3143-3149 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A method for measuring the nonlinear coefficients of piezoceramic resonators with low signal excitation is presented. It consists of the intermodulation produced by two signals with variable amplitude and closely spaced in frequency at the neighborhood of the resonance, performing the measurement of the intermodulation distortion signals at frequencies near excitation. This method is highly sensitive and allows nonlinear measurements to be taken at relatively low levels, avoiding thermal effects. The module and argument of the nonlinear increase in the impedance can be determined by the analysis of these measurements. This method is compared with other previously used methods, and the advantages of the proposed method are analyzed. The described nonlinear coefficient allows us to understand and foresee the nonlinear behavior near the resonance: amplitude-frequency shift effect, decrease of mechanical quality factor Q, and the jump phenomenon observed in frequency sweeps. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1148259
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  • 4
    Electronic Resource
    Electronic Resource
    Description of an improved method for Blastocystis hominis culture and axenization (1996)
    Springer
    Parasitology research 83 (1996), S. 60-63 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract  An improved method for Blastocystis hominis culture and axenization was developed in the present study. Stool samples were cultured in prereduced Boeck-Drbohlav NHI modified medium (with several modifications) supplemented with antibiotics (0.4% ampicillin, 0.1% streptomycin, 0.0006% amphotericin B). Axenization was performed by the combination of partial purification of B. hominis by Ficoll-metrizoic acid gradient and inoculation in fresh medium containing active antibiotics against remaining bacteria. A total of 25 strains were obtained by this procedure. The time required for axenization ranged between 3 and 5 weeks. The generation time of axenic strains ranged from 6.6 to 12.1 h (mean ± SD 10.1 ± 1.8 h) and the mean number of generations was 2.5 ± 0.6 h per 24 h. The size of vacuolar and ameboid forms found in stools and in culture was similar. The special formulation of the medium used reduced the generation time and did not modify the cellular size as compared with fecal forms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004360050209
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  • 5
    Electronic Resource
    Electronic Resource
    In vitro encystation of Blastocystis hominis : a kinetics and cytochemistry study (1997)
    Springer
    Parasitology research 84 (1997), S. 54-58 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The kinetics of in vitro encystation of Blastocystis hominis was studied over 9 days. The differentiation between trophic (TF) and cyst forms (CF) was determined by differential counts before and after treatment with distilled water. A cytochemistry study using acridine orange and Calcofluor white wet-mount preparations of CF was carried out. The growth curves of TF and CF were related because the decrease in TF was followed by an increase in CF, and vice versa. The maximum of CF counts was obtained on the 6th or 7th day. Using the differential acridine orange stain, two subpopulations of CF, yellow-orange fluorescent cells or precysts and green fluorescent cells or cysts, were detected and their curves were also related. CF was stained by Calcofluor white, which suggested the existence of β-(1-4)-glycosyl residues in the wall cysts of B. hominis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004360050356
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  • 6
    Electronic Resource
    Electronic Resource
    Soluble-protein and antigenic heterogeneity in axenic Blastocystis hominis isolates: pathogenic implications (1999)
    Springer
    Parasitology research 85 (1999), S. 93-97 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The protein profile and the antigenic cross-reactivity of 18 axenic isolates of Blastocystis hominis obtained from symptomatic patients with chronic diarrhea (14 isolates) showing no evidence of parasitic etiology and from patients with acute diarrhea attributable in 2 cases to Salmonella spp. were analyzed. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis of soluble proteins showed the existence of a common profile composed of 31 bands, with molecular weights ranging between 24 and 〉200 kDa, and minor differences in the proteins of 149, 118, 106, 50, 48, 47, and 30 kDa. These differences allowed us to classify the strains into three related patterns (I–III). In an indirect immunofluorescence assay, all strains were serologically identical, but two related antigenic groups (1 and 2) were found in double-immunodiffusion and Western-blot studies. The isolates of protein patterns I and II belonging to antigenic group 1 were isolated from patients with chronic diarrhea, whereas the four isolates from patients with acute diarrhea were clustered in protein pattern III and in antigenic group 2. These results confirm the protein and antigenic heterogeneity of B. hominis and the existence of demes with different pathogenic roles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004360050515
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  • 7
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    Alternation of generations in Andricus corruptrix (Schlechtendal): comments on and description of a new sexual form (Hymenoptera: Cynipidae) (2004)
    In:  Contributions to Zoology (1383-4517) vol.73 (2004) nr.4 p.263
    Details
    Publication Date: 2015-05-08
    Description: Life cycle of A. corruptrix (Schlechtendal, 1870) is treated and corrections to previous experiments are discussed. A new sexual form for A. corruptrix is herein described, while A corruptrix forma larshemi is considered a valid species and for taxonomical reasons is renamed as Andricus improprius n. stat & n.sp, only known by the sexual form, and not linked with A. corruptrix. Lectotypes for ,4. improprius n. stat & n, sp. (= A. larshemi not available) are also designated.
    Keywords: Hymenoptera ; Cynipidae ; Andricus ; A. corruptrix ; A. improprius ; life cycle ; new form
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
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  • 8
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    Programa de seguimiento de las pesquerías bentónicas, 2021 (2023)
    IFOP | Valparaíso, Chile
    Details
    Publication Date: 2023-02-17
    Description: Este documento contiene los resultados principales de la ejecución del "Proyecto de Seguimiento de Pesquerías Bentónicas (PSPB)”, realizado entre enero del año 2021 y junio de 2022 por el Instituto de Fomento Pesquero (IFOP), el cual, se desarrolló en el marco del programa Asesoría integral para la toma de decisiones en pesca y acuicultura (ASIPA) y fue financiado por el Ministerio de Economía y Turismo.
    Description: Proyecto de Seguimiento de Pesquerías Bentónicas 2021
    Description: Published
    Description: Non Refereed
    Keywords: Loxechinus albus ; Ameghinomya antiqua ; Sarcopeltis skottsbergi ; Benthic environment ; Marine fisheries
    Repository Name: AquaDocs
    Type: Report
    Format: 82pp
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  • 9
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    On the biological cycle of the gall wasp Plagiotrochus suberi Weld 1926 (Hymenoptera: Cynipoidea: Cynipidae) in the circum-Mediterranean region (2008)
    In:  Contributions to Zoology vol. 77 no. 4
    Details
    Publication Date: 2024-01-12
    Description: Oak gall wasps (Cynipidae: Cynipini: Plagiotrochus) that induce galls on Quercus reproduce by alternate sexual and parthenogenetic generations (Pujade-Villar et al., 2001). However, a few species are obligatory parthenogenetic (Abe, 1998) or show the facultative alternation of generations (Folliot, 1964).
    Keywords: Plagiotrochus suberi Weld 1926 ; hymenoptera ; cynipidae
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 10
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    Alternation of generations in Andricus corruptrix (Schlechtendal): comments on and description of a new sexual form (Hymenoptera: Cynipidae) (2004)
    In:  Contributions to Zoology vol. 73 no. 4, pp. 263-270
    Details
    Publication Date: 2024-01-12
    Description: Life cycle of A. corruptrix (Schlechtendal, 1870) is treated and corrections to previous experiments are discussed. A new sexual form for A. corruptrix is herein described, while A corruptrix forma larshemi is considered a valid species and for taxonomical reasons is renamed as Andricus improprius n. stat & n.sp, only known by the sexual form, and not linked with A. corruptrix. Lectotypes for ,4. improprius n. stat & n, sp. (= A. larshemi not available) are also designated.
    Keywords: Hymenoptera ; Cynipidae ; Andricus ; A. corruptrix ; A. improprius ; life cycle ; new form
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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