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  • Blackwell Publishing Ltd  (29)
  • American Association for the Advancement of Science  (2)
  • American Society of Hematology  (2)
  • American Journal of Science
  • 1985-1989  (19)
  • 1980-1984  (10)
  • 1975-1979  (5)
  • 1820-1829
Collection
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Entamoeba histolytica: Collagenolytic Activity and Virulence (1984)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 31 (1984), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Several axenic strains of pathogenic and nonpathogenic Entamoeba histolytica were tested for their capacity to digest native radioactive type I collagen gels and to produce liver abscesses when injected into the liver of newborn hamsters. The results demonstrate that the pathogenic strains of amebas (HM1:IMSS, HM3:IMSS, HM38:IMSS, and HK9) have a collagenolytic activity that closely correlates with their in vivo capacity to produce liver lesions. The nonpathogenic isolate (Laredo) did not show collagenolytic activity and failed to produce lesions in the liver of newborn hamsters. The results also demonstrate that type I collagen obtained from rodents and cats is degraded less by amebic collagenase than is bovine collagen, which is similar to human collagen. These findings suggest that species susceptibility to invasive infection may depend, among other factors, on the characteristics of the extracellular components of host tissues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1984.tb02995.x
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  • 2
    Electronic Resource
    Electronic Resource
    The Stomatogenic Process in Opercularia coarctata (Ciliophora, Peritrichida) (1988)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 35 (1988), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: . Stomatogenesis in Opercularia coarctata has been studied in specimens treated with Fernández-Galiano's silver impregnation method. The new buccal structures originate from the germinal row and from the parental haplokinety.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1988.tb04064.x
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  • 3
    Electronic Resource
    Electronic Resource
    Description of the Infraciliature and Morphogenesis in the Ciliate Urotricha ondina N. Sp. (Prorodontida, Urotrichidae) (1989)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 36 (1989), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Recent works on prostomatid ciliates show that some genera of this group have a differentiated oral infraciliature and that their stomatogenesis during division involves the proliferation of only a few somatic kineties. These findings have significant implications regarding the iaxonomic status of these genera and also on the terminology used for the oral structures. In Urotricha ondina, the oral infraciliature consists of (1) a paroral kinety formed of paired kinetosomes that encircle the cytostome at the anterior pole of the cell and (2) 3 adoral organelles, each formed of 2 rows of kinetosomes, ventral in position and obliquely disposed, lying above 3 short somatic kineties that do not reach the anterior pole of the cell. This oral ciliature —formerly known as the corona and brosse, respectively—originate during stomatogenesis from the proliferation of 4 somatic kineties that lie posterior to the adoral organelles of the parental cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1989.tb02719.x
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  • 4
    Electronic Resource
    Electronic Resource
    Vitamin Intervention on Precancerous Lesions of the Esophagus in a High-Risk Population in China (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 534 (1988), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1988.tb30152.x
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  • 5
    Electronic Resource
    Electronic Resource
    DEVELOPMENT AND APPLICATION OF TEXTURE REFERENCE SCALES (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of sensory studies 1 (1986), S. 0 
    Details
    ISSN: 1745-459X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Standard texture rating scales of hardness, adhesiveness, fracturability, cohesiveness, and denseness were modified during the training of a Texture Profile panel. New reference materials were selected for each scale to better illustrate the texture characteristics and intensities and to account for previously recommended food products no longer available. In addition, new reference scales for wetness, adhesiveness to lips, roughness, self-adhesiveness, springiness, cohesiveness of mass, moisture absorption, adhesiveness to teeth, and manual adhesiveness were developed. The application of new texture reference scales reduced the variability among panelists and provided consistent judgments in texture evaluations. Expanded and improved definitions and evaluation procedures for texture attributes are presented. Also, special considerations for the use of reference scales in texture evaluations are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-459X.1986.tb00159.x
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  • 6
    Electronic Resource
    Electronic Resource
    Changes in glutamate dehydrogenase activity of Chlamydomonas reinhardtii under different trophic and stress conditions (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 12 (1989), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract. Under stress conditions (darkness, nitrogen starvation, high ammonium concentrations, glutamine synthetase and glutamate synthase inhibition) glutamate dehydrogenase animating activity levels of Chlamydomonas cells varied inversely to those of glutamine synthetase. Nitrogen and carbon sources also influenced glutamate dehydrogenase levels in Chlamydomonas, the highest values being found in cells cultured mixotrophically with ammonium, under which conditions glutamate dehydrogenase and glutamine synthetase levels were likewise inversely related. These facts, together with the analysis of internal fluctuations of ammonium, 2-oxoglutarate, and the amino acid pool as well as the variations of certain enzymes involved in carbon metabolism indicate that glutamate dehydrogenase animating activity is adaptative, being involved in the maintenance of intracellular levels of L-glutamate when they cannot be maintained by the GS-GOGAT cycle, and probably more connected with carbon than nitrogen metabolism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3040.1989.tb01930.x
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of atrazine and methabenzthiazuron on oxygen evolution and cell growth of Chlorella pyrenoidosa (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 25 (1985), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Cultures of Chlorella pyrenoidosa Pringsheim were grown photoautotrophically in the presence of two concentrations (0·25 and 0·50 μm) of atrazine and methabenzthiazuron. The cell density and chlorophyll content were greatly reduced in presence of both herbicides. These herbicides affected net photsynthesis equally without affecting oxygen uptake. However, cell division was more inhibited by atrazine than by methabenzthiazuron, but chlorophyll content per cell was more inhibited by methabenzthiazuron than by atrazine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.1985.tb00618.x
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  • 8
    Electronic Resource
    Electronic Resource
    Fish mortality due to acute ammonia exposure (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Aquaculture research 18 (1987), S. 0 
    Details
    ISSN: 1365-2109
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. Fish mortality in the River Umia, near Villagarcia de Arosa, Pontevedra, Spain, which occurred after a discharge from a food sewage works, is studied. Physico-chemical parameters of water samples from sewage and from the River Umia were studied and concentrations of ammonia sufficiently high to cause toxic effects in fish (702 mg/1 and 302 mg/1 as total ammonia) were found. The toxicity of two concentrations of ammonia was investigated on goldfish, Carassius auratus (L.), using water quality values the same as found in the River Umia, to obtain the same concentrations of un-ionized ammonia (2·13 mg/1 and 0·91 mg/1). Fish exposed to high concentrations died within 24 h and three of six, which were exposed to the lowest concentration died within 96h. All fish at first showed symptoms of hyper excitability and hyperventilation, and at times of rest showed a decrease in respiration. Post-mortem findings generally included gill congestion and haemorrhage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2109.1987.tb00135.x
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  • 9
    Electronic Resource
    Electronic Resource
    Development, Evaluation and Industrial Production of a Powdered Soy-Oats Infant Formula Using a Low-Cost Extruder (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 46 (1981), 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: A low cost powdered infant formula made from soybeans, oats and sucrose, fortified with methionine, vitamins and minerals, has been developed. A dry process for making the formula, which employs a low-cost Brady extruder, has also been developed. The resulting product is of good microbiological quality and disperses readily in water to give a milk-like suspension of satisfactory stability to settling. The essential amino acid pattern of the formula, its PER and NPU values, nitrogen balance data with infants, proximal chemical analysis, calorie distribution and low level of trypsin inhibitor indicate it to be adequate for feeding infants 3 months or older. Clinical trials with infants also showed that the formula was well accepted and tolerated, and produced adequate weight gain. Retail prices of the product, packed in cans and polyethylene bags, are appreciably lower than those of comparable cow's milk and other soya-based infant formulas available in the market. The product is currently being manufactured and sold in several parts of Mexico.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb14562.x
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  • 10
    Electronic Resource
    Electronic Resource
    Aerobic Incubation of Clostridium perfringens in the Presence of an Oxygen-Reducing Membrane Fraction (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 51 (1986), 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 recovery and growth rates of C. perfringens were evaluated in media to which an oxygen-reducing membrane fraction from E. coli was added. Each of three C. perfringens strains was incubated in Tryptose Sulfite Cycloserine agar, with and without the membrane fraction. Recoveries were greater on media incubated aerobically with the membrane fraction than on the other formulations incubated an-aerobically or aerobically. C. perfringens ATCC 12917 reached stationary phase more rapidly in fluid thioglycollate medium (FTM) plus the membrane fraction than in FTM alone. Results showed that the membrane fraction allowed aerobic incubation for the recovery of C. perfringens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1986.tb13873.x
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