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La Riviere, J. W. (1969). Ecology of yeasts in the kefir grain. Antonie Van Leeuwenhoek, 35, Suppl:D15–6.
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Hanson, R. P., & Trainer, D. O. (1969). Significance of changing ecology on the epidemiology of arboviruses in the United States. Proc Annu Meet U S Anim Health Assoc, 73, 291–294.
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Beerwerth, W., & Schurmann, J. (1969). [Contribution to the ecology of mycobacteria]. Zentralbl Bakteriol [Orig], 211(1), 58–69.
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Boray, J. C. (1969). Experimental fascioliasis in Australia. Adv Parasitol, 7, 95–210.
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Halford, G.S., & Halford, J. M.. (1969). Secondary reinforcement: signal or substitute reward? A preliminary investigation. Aus. J. Psychol, .
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Lanzetta, J. T., & Hannah, T. E. (1969). Reinforcing behavior of “naive” trainers. Journal of Personality and Social Psychology, 11(3), 245–252.
Abstract: Attempted to determine whether the sanctioning behavior of naive trainers is consistent with principles of behavior modification, that is, responsive to a trainee's performance alone, or whether it is influenced by variables other than performance. 2 variables which may affect the administration of rewards and punishments are the perceived competence of the trainee and difficulty of the task. These 2 variables were manipulated in a 2 * 2 factorial design with easy and difficult tasks and competent and noncompetent trainees. The trainers were responsible for administering rewards and punishments to trainees while teaching them a concept task; use of a confederate enabled identical trainee performance for all conditions. The data indicate that extraperformance variables do affect the reinforcing behavior of naive trainers as predicted by attribution theory. The results provide behavioral confirmation for predictions from the theory which has been primarily tested using perceptual judgmental data. (PsycINFO Database Record (c) 2006 APA, all rights reserved)
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Sambraus, H. H. (1969). Das soziale Lecken des Rindes. Z. Tierpsychol., 26(7), 805–810.
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Raveling, D. G. (1969). Preflight and flight behaviour of Canada geese. Auk, 86, 671–681.
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Sambraus, H. H. (1969). Zur sozialen Rangordnung von Rindern1. Z. Tierzucht, 86(1-4), 240–257.
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Alexander, F., & Davies, M. E. (1969). Studies on vitamin B12 in the horse. Br. Vet. J., 125(4), 169–176.
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