In this paper, I would like to present the methodological views of two representatives of the early modern Cartesian school: Jacques Rohault and Pierre-Sylvain Régis. Firstly, I want to present the methodological objections of Cartesians to Aristotelian and Scholastic natural philosophy. Then, I want to show how Cartesians strived for a combination of empirical and speculative procedures in their explanations of natural processes. Lastly, I would like to explain the reasons and forms of the hypothetical methodology which was significant for Cartesian natural philosophy. My aim is to refute the idea of the methodological naivety of Cartesians and point out the importance of hypothetical reasoning in the genesis of modern science. and V tomto článku chci představit metodologické názory dvou představitelů novověké karteziánské školy: Jacquese Rohaulta a Pierre-Sylvaina Régise. Předně chci představit metodologické námitky karteziánů proti aristotelské a scholastické filosofii. Dále chci ukázat, jak karteziáni usilovali o kombinaci empirických a spekulativních postupů v jejich vysvětleních přírodních procesů. A nakonec chci vysvětlit důvody a formy hypotetické metodologie, která byla příznačná pro karteziánskou přírodní filosofii. Mým cílem je vyvrátit myšlenku metodologické naivity karteziánů a zdůraznit úlohu hypotetického uvažování při utváření moderní vědy.
The efficiency of Monte-Carlo procedures to test some hypotheses about the spatial patterns of larvae and damages of Lobesia botrana was studied. Two hypotheses were tested to detect spatial heterogeneity and spatial dependence. The most practical implication is to provide an efficient sampling scheme. The study of the relationship between spatial patterns and grape availability was required to explain scales of spatial heterogeneity and population dynamics studies were needed to relate it to oviposition behavior. It was tested through a third hypothesis. We adapted Monte-Carlo simulation procedures for the analysis of exhaustive count data obtained from regular grids delimited within each of two vineyards. Statistical analyses were based on count permutations and on count redistributions according to the hypotheses which were tested. Indices of aggregation and autocorrelation statistics were used. The hypotheses that we tested at different scales were random distribution of the infestations (HR), independence of vine stock (or groups of k vine stocks) infestation (HI) and independence between vine stock infestation and grape availability (HG). Monte-Carlo tests revealed the same spatial patterns for larvae and damages. We detected different spatial patterns. The implications for sampling were that sample unit could be an individual stock and that sampling along a row could not be used to estimate population density in the vineyard. Results showed that infestation of a given stock depended on grape availability on this stock and on neighboring vine stocks., Isabelle Badenhausser, Patrice Lecharpentier, Lionel Delbac, Pascale Pracros, and Lit
Presence of grandmothers in the pre-industrial families and their possible influence on fertility of their daughters: the example of the Šťáhlavy estate at the turn of the 18th and 19th centuries.