Bartosz Jenner

Relative differentiation of skeletal elements in European corvids

The study compares mensural differences between various species of European corvids in all major skeletal elements. It appears that the greatest differences are found in the bill and mandible, which may reflect adaptations to various foods and feeding methods. Substantiation of this supposition, however, calls for further studies. Ein morphometrischer Vergleich europäischer Corviden-Arten nach allen wichtigen Skelettmerkmalen zeigt, dass die größten Unterschiede zwischen den Arten im Ober- und Unterschnabelbau bestehen. Dies wird als Anpassungen an verschiedene Nahrung und Ernährungsmethoden erklärt. Diese Vermutung erfordert jedoch noch weitere Untersuchungen.

Wpływ wielkości nakładów inwestycyjnych w sektorze B+R na regionalne zróżnicowanie tempa rozwoju Francji

The following article refers to the relationship between the rate of economic development anda share of a section related to the services for companies in France. The text discusses twoproblems: the influence of the size of investment in innovation on the GDP growth in regionalsystem of France and the influence of the structure of expenditure in R&D section on theregional differentiation of development rate of France. The analysis is based on the value ofGDP per person employed and the size of investment in innovation in the years 1991–2004.The analysis of numeral data is based on statistical methods by means of correlation and timeseries. The analysis proves that there is a relationship between the investment in education andgrowth rate of GDP. According to OECD report, the influence of innovation on economicgrowth rate can be tenfold. Capital expenditures in innovation in higher education seem to bethe best investment influencing the GDP increase. It should be emphasized that all thementioned regularities are characterized by a large regional differentiation all over the France.