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  • Blackwell Publishing Ltd  (54)
  • Periodicals Archive Online (PAO)
  • 1995-1999  (57)
  • 1945-1949  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Identification and Partial Purification of a Stage-Specific 33 kDa Mitochondrial Protein as the Alternative Oxidase of the Trypanosoma brucei brucei Bloodstream Trypomastigotes (1995)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 42 (1995), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: . The glycerophosphate oxidase (GPO), the unique terminal oxidase of bloodstream trypanosome (TAO), appears to be functionally similar to the alternative oxidases of some plants and higher fungi. Immunoblotting of mitochondrial proteins of bloodstream trypomastigotes of Trypanosoma brucei brucei with monoclonal or polyclonal antibodies to Sauromatum guttatum (voodoo lily) and Symplocarpus foetidus (skunk cabbage) alternative oxidases respectively revealed two proteins of about 33 kDa (p33) and 68 kDa (p68). These proteins are not present in procyclic trypomastigotes. Electrophoresis under rigorous denaturing conditions indicated p68 to be the dimer of p33. Indirect immunofluorescent studies of bloodstream and procyclic trypomastigotes with monoclonal antibody to plant alternative oxidase also showed the localization of 33 kDa protein in the mitochondria of the bloodstream trypomastigotes. The functional TAO activity could be solubilized efficiently from the mitochondrial membrane of the bloodstream trypomastigotes by 1% NP-40 or 10 mM lauryl maltoside. When fractionated by Superose 12 gel filtration chromatography, p33 was co-purified with the TAO enzymatic activity. The apparent molecular size of the active enzyme complex was found to be 160 kDa. Gradual disappearance of the 33 kDa protein and the TAO enzymatic activity were well correlated during in vitro differentiation of the bloodstream to procyclic trypomastigotes. This study implies that the net biosynthesis of p33, an essential subunit of TAO, is decreased during differentiation from bloodstream to procyclic trypomastigotes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1995.tb05892.x
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  • 2
    Electronic Resource
    Electronic Resource
    The Order Euplotida (Ciliophora): Taxonomy, with Division of Euplotes into Several Genera (1995)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 42 (1995), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: . The order Euplotida represents a monophyletic order of five families of hypotrich ciliates united by morphology, stomatogenesis, ultrastructure, cyst structure, and behavior. A review of variability of ciliation and nuclei among the 14 genera suggests that lines of evolution may have involved both the loss of cirri and nuclear simplification. We present a binary key to genera in the families Aspidiscidae (Aspidisca and Euplotaspis), Certesiidae n. fam. (Certesia), Gastrocirrhidae (Cytharoides, Euplotidium, and Gas-trocirrhus), Uronychiidae (Diophryopsis, Diophrys, Paradiophrys, and Uronychia), and Euplotidae. The latter family contains species formerly in the genus Euplotes. Based primarily on cortical structure, endosymbionts, data from morphometric analysis, and ecology, we recognize four different groups. The first group of species remains in Euplotes with Euplotes charon as type. We place a second group of species into the genus Moneuplotes Jankowski 1979 with Moneuplotes vannus (Müller, 1786) as type. We erect two new genera: Euplotoides n. g. and Euplotopsis n. g. with Euplotoides patella (Müller, 1773) n. comb. and Euplotopsis affinis (Dujardin, 1841) n. comb. as type species respectively. We discuss possible phylogenetic relationships within the order.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1995.tb05891.x
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  • 3
    Electronic Resource
    Electronic Resource
    THE LOSS OF EARNINGS CAPABILITY FROM DISABILITY/HEALTH LIMITATIONS: TOWARD A NEW SOCIAL INDICATOR (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Review of income and wealth 41 (1995), S. 0 
    Details
    ISSN: 1475-4991
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Health problems and physical and mental impairments can restrict the kind and amount of work that individuals can perform. Several studies have estimated the loss in earnings experienced by disabled/health-limited workers, but they do not examine the trend in this loss over time. The authors propose an alternative indicator of productivity loss that is more appropriate for inter temporal comparisons: “lost earnings capability”–the difference between the amount of money persons could potentially earn if they were free of disability/health limitations and the amount of money that they can actually earn given their limitations. The estimates indicate that the mean lost earnings capability per disabled/health-limited person grew over the period from 1973 to 1988, while the population with disabilities/health limitations fell. In 1973, lost earnings capacity totaled about 5.3 percent of Gross National Product (GNP); by 1988, the loss had fallen to about 4.5 percent of GNP as a consequence of the reduction in the number of people with limitations. Data are from the Current Population Surveys and the Survey of Income and Program Participation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-4991.1995.tb00121.x
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  • 4
    Electronic Resource
    Electronic Resource
    A TAXONOMY OF MULTILATERAL METHODS FOR MAKING INTERNATIONAL COMPARISONS OF PRICES AND QUANTITIES (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Review of income and wealth 43 (1997), S. 0 
    Details
    ISSN: 1475-4991
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: A taxonomy of multilateral methods is developed. All the main methods are classified within the taxonomy. It is then shown that methods in the same class share many of the same properties. Therefore the taxonomy should help practitioners to appreciate the wide range of alternative methods for making international comparisons, the relationships between methods, and the relative strengths and weaknesses of each method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-4991.1997.tb00200.x
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  • 5
    Electronic Resource
    Electronic Resource
    FOCUS: Ethics in the Accountancy Profession in Ireland (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Business ethics 5 (1996), S. 0 
    Details
    ISSN: 1467-8608
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Philosophy , Economics
    Notes: Accountants confronted with ethical dilemmas are expected to comply with their ethical guide or seek advice from their professional body. This study of Chartered Accountants in Ireland records their views on the usefulness of a Code of Ethics, the efficacy of their professional Institute and the need for ethics courses in Continuing Professional Development. Peter Clarke is a lecturer in the Department of Accountancy, University College Dublin, Dublin 4; Nancy Hill and Kevin Stevens are members of the School of Accountancy, DePaul University, Chicago.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8608.1996.tb00151.x
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  • 6
    Electronic Resource
    Electronic Resource
    Use of a Numerical Model for Management of Shallow Ground-Water Levels in the Yuma, Arizona Area (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 34 (1996), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: The Yuma area has experienced agricultural development since the late 1890s and ground-water levels have risen over 70 feet due to recharge from heavy application of irrigation water, unlined canals and flooding along the Colorado and Gila Rivers. The resulting shallow water levels have seriously impacted residential areas and prime agricultural land.The Arizona Department of Water Resources in conjunction with Yuma County Flood Control District developed a regional three-dimensional ground-water flow model of the Yuma area. The purpose of the model is to assist local agencies in evaluating remedial water management alternatives to mitigate the shallow ground-water level problems.The model domain incorporates over 900 mi2 of Arizona, California, and Mexico and simulates ground-water pumpage, deep percolation from agricultural irrigation, evapotranspiration from phreatophytes and flow in 12 canals, 16 drains, and the Colorado and Gila Rivers. The model contains four layers with over 30,000 model cells ranging in size from 40 acres to 640 acres.Different model scenario simulations were conducted to evaluate the effectiveness of proposed water management alternatives on lowering ground-water levels within the northern portion of Yuma Valley. These scenarios include lining a portion of the East Main canal and pumping two drainage wells, lining the All-American canal, and simulating a decrease in deep percolation from agricultural irrigation on the Yuma Mesa and northern portion of Yuma Valley.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1996.tb02020.x
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  • 7
    Electronic Resource
    Electronic Resource
    A Controlled Experiment in Ground Water Flow Model Calibration (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 36 (1998), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Nonlinear regression was introduced to ground water modeling in the 1970s, but has been used very little to calibrate numerical models of complicated ground water systems. Apparently, nonlinear regression is thought by many to be incapable of addressing such complex problems. With what we believe to be the most complicated synthetic test case used for such a study, this work investigates using nonlinear regression in ground water model calibration. Results of the study fall into two categories. First, the study demonstrates how systematic use of a well designed nonlinear regression method can indicate the importance of different types of data and can lead to successive improvement of models and their parameterizations. Our method differs from previous methods presented in the ground water literature in that (1) weighting is more closely related to expected data errors than is usually the case; (2) defined diagnostic statistics allow for more effective evaluation of the available data, the model, and their interaction; and (3) prior information is used more cautiously. Second, our results challenge some commonly held beliefs about model calibration. For the test case considered, we show that (1) field measured values of hydraulic conductivity are not as directly applicable to models as their use in some geostatistical methods imply; (2) a unique model does not necessarily need to be identified to obtain accurate predictions; and (3) in the absence of obvious model bias, model error was normally distributed. The complexity of the test case involved implies that the methods used and conclusions drawn are likely to be powerful in practice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1998.tb02824.x
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  • 8
    Electronic Resource
    Electronic Resource
    Inverse Models: A Necessary Next Step in Ground-Water Modeling (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 35 (1997), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Inverse models using, for example, nonlinear least-squares regression, provide capabilities that help modelers take full advantage of the insight available from ground-water models. However, lack of information about the requirements and benefits of inverse models is an obstacle to their widespread use. This paper presents a simple ground-water flow problem to illustrate the requirements and benefits of the nonlinear least-squares regression method of inverse modeling and discusses how these attributes apply to field problems. The benefits of inverse modeling include: (1) expedited determination of best fit parameter values; (2) quantification of the (a) quality of calibration, (b) data shortcomings and needs, and (c) confidence limits on parameter estimates and predictions; and (3) identification of issues that are easily overlooked during nonautomated calibration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1997.tb00082.x
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  • 9
    Electronic Resource
    Electronic Resource
    “PUSHY” BEHAVIOR IN A WILD DOLPHIN FEEDING PROGRAM AT TANGALOOMA, AUSTRALIA (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Marine mammal science 12 (1996), S. 0 
    Details
    ISSN: 1748-7692
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A program where wild bottlenose dolphins (Tursiops truncatus) are fed by tourists in shallow water adjacent to a wharf has been established at Tangalooma, Queensland, Australia. Up to nine dolphins attend the nightly feedings, and between 60 and 80 resort guests are permitted to hand feed these dolphins each night. Since this program began in 1992, the dolphins have increased in confidence and have started, at times, to make forceful contact with guests who enter the water to feed them. This paper categorizes such behavior as “pushy” and reports on a study which quantifies the “pushiness” of the dolphins which feed at Tangalooma. The study examines ecological variables which may determine how pushy the dolphins are at different feeding sessions. The number of dolphins attending a particular feeding significantly increases the pushiness. In addition, the presence of adult males at a feeding is likely to increase pushing. Tidal state also influences how pushy the dolphins are. At low tide, when the dolphins’mobility is restricted by the water depth, they are less likely to be pushy. Given the problems experienced in a number of other situations where wild animals are fed by humans, it is important to monitor carefully the escalation of pushy behavior in this dolphin feeding program, as it may be a precursor to more aggressive actions on the part of the dolphins.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1748-7692.1996.tb00308.x
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  • 10
    Electronic Resource
    Electronic Resource
    Attempts to overcome postfertilization barrier in interspecific crosses of the genus Lens (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 114 (1995), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Wild relatives are a potential source of genetic diversity to lentil (Lens culinaris Medik). The objective of this research was to obtain viable interspecific hybrids between the domesticated lentil and its wild relatives.The paper details the results of a number of interspecific crosses among L. culinaris, L. orientalis, L. odemensis, L. ervoides and L. nigricans. Viable hybrids were produced between L. culinaris × L. orientalis, L. culinaris × L. nigricans, L. culinaris × L. ervoides and between L. culinaris × L. odemensis. Further viable hybrids were obtained between L. culinaris and L. ervoides, which have the potential to be a ‘bridge’ in hybridization to L. culinaris for specific L. nicrigans lines which proved recalcitrant in L. culinaris × L. nigricans crosses. This is the first time that four wild species of lentils have been used successfully in hybridization with cultivated lentils, and viable hybrids produced. This paper also suggests that the artificial supplement of GA3, hormone is needed after fertilization for the normal growth of the hybrid embryo, possibly as the natural GA3 production is restricted with alien pollinations in cultivated lentils in both F1 and backcross hybrids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1995.tb00859.x
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