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  • Wiley  (41)
  • Springer Nature  (25)
  • American Institute of Physics  (18)
  • Blackwell Publishing Ltd  (18)
  • American Geophysical Union  (11)
  • Cell Press
  • MDPI
  • 2020-2023  (8)
  • 1980-1984  (106)
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  • 1
    Electronic Resource
    Electronic Resource
    Methods for the Large-Scale Cultivation of an Oxytricha (Ciliophora: Hypotrichida) (1983)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 30 (1983), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: . Oxytricha strains used in biochemical studies have traditionally been grown in unaerated, unagitated culture tubes or Fernbach flasks. These cultures are limited in volume to about one liter and have a very nonuniform distribution of cells, with the majority of the cells at the very top or bottom of the medium. We have found conditions in which Oxytricha can be grown in 50-liter fermentation vats. The cultures grow to a uniform density of about 6000 cells/ml.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1983.tb01035.x
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  • 2
    Electronic Resource
    Electronic Resource
    Problems in the Identification of Species of Eimeria (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: . The paper is concerned with the principles upon which coccidia of the genus Eimeria may be characterized. Reference strains for comparative purposes usually are not available and the limitations of morphological data for speciation are discussed. The value of other parameters are considered such as host and site specificity, pathogenicity, immunological specificity, pre-patent period, sporulation time, enzyme variation, and DNA buoyant density. The weight afforded to each of these parameters for specific identification may vary according to the parasite and host studied. Determinations of physiological and behavioral characteristics that are now becoming available should be included in species definitions wherever possible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1984.tb05498.x
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  • 3
    Electronic Resource
    Electronic Resource
    Nucleolar Hypertrophy as an Indicator of Transcription in Cells Infected with Second Generation Meronts of Eimeria tenella (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: . Changes in nuclei and nucleoli of cells of chicken cecum infected with Eimeria tenella were studied in living cells by interference microscopy and in fixed and stained tissues using light level microscopy. As soon as merozoites began to transform into second generation meronts, there was an increase in the size of both the nucleus and the nucleolus of the host cell. The dry weight of the nucleus increased somewhat, but there was a greater increase and a correlation of the dry mass of the nucleolus with the size of the parasite as measured by interference microscopy. In fixed and stained tissues, there was a correlation between the area of the nucleolus and the area of the parasite. Removal of nucleic acids with DNase and/or RNase showed high concentrations of both in the nucleoli and a residue of protein. The increased nucleolar size indicates a high level of transcription in infected cells and allows the conclusion that the parasite somehow induces transcription to occur. Since transcription is a highly specific process, the high degree of host and site specificity shown by nearly all coccidia is consistent with a hypothesis that the coccidia share a portion of the host genome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1984.tb05505.x
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  • 4
    Electronic Resource
    Electronic Resource
    The Biology and Pathogenicity of a Recent Field Isolate of Eimeria praecox Johnson, 1930 (1982)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 29 (1982), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A recent isolate of Eimeria praecox, strain G, was obtained from Georgia and purified. Studies of the life history, pathogenicity, and cross-immunity of the isolate were conducted to verify its identity. In inoculated three-week-old chickens, the occurrence of merogony and gametogony was limited to the superficial epithelium of the upper intestine. Oocysts, 23 × 19.5 äm, with a shape index of 1.17 were first observed 83 h after inoculation. Mortality and morbidity were not observed in any of the experimental birds. However, there was a positive correlation between dose of oocysts, reduced weight gain, and the incidence of exudative diathesis. These studies showed that E. praecox depresses weight gains in chickens and may be of economic importance. Although complete immunity to avian coccidiosis is believed to be species specific, chickens immune to E. praecox (G) or E. acervulina had a degree of cross-immunity to a heterologous challenge. Electrophoretic analysis of glucose phosphate isomerase and lactate dehydrogenase prepared from the European strain of E. praecox and E. praecox (G) showed no differences, confirming the identity of the isolate as E. praecox.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1982.tb02884.x
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  • 5
    Electronic Resource
    Electronic Resource
    A NOTE ON THE REAL VALUE OF INTERNATIONAL FINANCIAL ASSETS: AN APPLICATION TO NON-OIL DEBT (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Review of income and wealth 26 (1980), S. 0 
    Details
    ISSN: 1475-4991
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-4991.1980.tb00179.x
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  • 6
    Electronic Resource
    Electronic Resource
    DISUSION by Ronald A. Chadderton: ‘The Potential Impact of Water Reallocations on Agriculture in Idaho” (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 20 (1984), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1984.tb04652.x
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  • 7
    Electronic Resource
    Electronic Resource
    MEASURING THE CONTRIBUTION OF LAND AND WATER TO AGRICULTURE (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 19 (1983), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: Irrigated land outproduces dryland agriculture, especially in the western United States. Many valuable crops could not be grown without irrigation. A paucity of yield data does not allow direct measurement of the contribution from irrigated crop agriculture, nor does it allow evaluation of the contributions from livestock which are dependent upon irrigated feed. Regression results indicate that 80 percent of Idaho farm income is associated with irrigation, and that 75 percent of the farm income in the 17 western states is associated with irrigation. For the United States as a whole, results indicate that 13.7 percent of the total cropland (irrigated land) produced 41.3 percent of all cash receipts from farming in 1978. If 14 percent of the land can produce 40 percent of the value of production, can 35 percent of our land produce all our food and fiber needs? Such an allegation has several implications in terms of the adequacy of our land and water resources. It also emphasizes the role of technology in future resource use and production.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1983.tb02778.x
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  • 8
    Electronic Resource
    Electronic Resource
    THE POTENTIAL IMPACT OF WATER REALLOCATIONS ON AGRICULTURE IN IDAHO (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 18 (1982), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : Economics is concerned with the allocation of resources between alternative uses. Traditionally, in the western United States, water resources have been committed to agriculture and irrigation. Other competitive uses such as power, industry, and recreation are challenging this allocation. What are the impacts of shifting water out of agriculture into other uses, is a question that needs to be given consideration. Ilia paper attempts to evaluate the tradeoff between using farm land for either irrigated or dryland production and the resulting impacts on gross farm income and the average price of land. Baaed on historical data, reducing irrigated acreage and increasing dryland acreage could greatly reduce both farm income and the equity in farming. The model presented in this paper should be useful for evaluating the tradeoffs between dryland and irrigated land use, especially when there are gat differences in productivity such as those that exist in the inter-mountain region of the Western United States.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1982.tb00103.x
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  • 9
    Electronic Resource
    Electronic Resource
    PRIMARY AND SECONDARY IMPACTS OF A WATER RESOURCE DEVELOPMENT PROJECT (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 16 (1980), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : At a time in history when water resource development in the United States is being condemned as both economically inefficient and an environmental disaster, perhaps economists need to look back at previous development to see what the fruits of water development (be they sweet or sour) have been. The Boise Project of south-western Idaho is 70 years old and to some people it represents a gross error in resource use, while to others it represents a means of livelihood and well being. A recent research project at the University of Idaho attempted to measure not only the direct economic income benefits of the project (from irrigation), but also the indirect or secondary income benefits (from the food processing industry). Periodic regional input-output tables were constructed to assess the income generated from irrigation and food processing over the period from 1946 to 1970. Input-output analysis allowed researchers to evaluate the direct and indirect impacts of both the irrigation sector and the food processing sector and to compare their growth over time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1980.tb02540.x
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  • 10
    Electronic Resource
    Electronic Resource
    BALANCE OF PAYMENTS DISTURBANCES AND THE DEBT OF THE NON-OIL LESS DEVELOPED COUNTRIES: RETROSPECT AND PROSPECT (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Kyklos 33 (1980), S. 0 
    Details
    ISSN: 1467-6435
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Sociology , Economics
    Notes: The paper identifies the disturbances in the balance of payments of the non-oil less developed countries responsible for the rapid growth in their external debt between 1972 and 1977. It also examines prospects for the future. It finds that the sharp growth in the current account deficits in the years 1974 and 1975 was due primarily to adverse movements in the terms of trade. But trade terms were reversed in 1976 and 1977 and the deficit was reduced. Still overall inflation, slow export growth, and large interest payments kept the deficit substantially above the 1972 and earlier levels. In part II the paper examines how the debt to GNP ratio of the LDC's could be affected by four factors: export growth, changes in real interest rates, terms of trade, and credit rationing. A model is developed which shows that certain combinations of the four factors could lead to rapid accumulation of debt relative to GNP.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-6435.1980.tb02644.x
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