https://popups.uliege.be/0351-580x fr https://popups.uliege.be/0351-580x/index.php?id=4771 Guest editor: Bente Pakkenberg Wed, 21 Oct 2015 00:00:00 +0200 https://popups.uliege.be/0351-580x/index.php?id=4771 https://popups.uliege.be/0351-580x/index.php?id=4773 Wed, 21 Oct 2015 00:00:00 +0200 https://popups.uliege.be/0351-580x/index.php?id=4773 https://popups.uliege.be/0351-580x/index.php?id=4775 Wed, 21 Oct 2015 00:00:00 +0200 https://popups.uliege.be/0351-580x/index.php?id=4775 https://popups.uliege.be/0351-580x/index.php?id=4778 Estimates of total number and mean volume of Purkinje cells in five human and nine rat cerebella were obtained using stereological methods based on unbiased principles and estimators. The average total number of Purkinje cells was 30.5106 (CV = SD/mean = 0.13) in humans and 0.61106 (CV = 0.21) in rats. Thus the total number of Purkinje cells was 50 times higher in the human compared with rats, while numerical density per mm3 was 13 times lower in humans (0.81103) compared with rats (10.1103). The nucleator was applied to estimate the number weighted mean volume of the large and unevenly distributed Purkinje cells. In humans the mean volume of Purkinje cell perikaryon is 14,250 μm3 (CV = 23%). The data are compared with the mean Purkinje cell perikaryon volume in rats, 5,300 μm3, with a CV of 5%. Expectedly, the variation in Purkinje perikaryon volume between individuals are larger in humans than the individual variation between rats. Wed, 21 Oct 2015 00:00:00 +0200 https://popups.uliege.be/0351-580x/index.php?id=4778 https://popups.uliege.be/0351-580x/index.php?id=4754 Fresh water Pseudomonas bacteria colonies were grown on glass plates in a biofilm reactor with flow and without flow. In the colony grown with flow, at the center of the colony, bacteria were aligned parallel to each other. At the edges of the colony, the bacteria were disordered in orientation. The colony grown in static water didn't show any order. Bacteria orientational angle distribution and interbacterial separation distance distribution, are presented. The orientational order at the colony centre is understood to be induced by the shear caused by the flow. At the edges, no order existed presumably due to the reversible adhesion phase of the bacteria. The interbacterial closest approach distance was too large to be explained by Derjaquin-landau-Verweey-Overbeek (DLVO) potential. Thu, 15 Oct 2015 00:00:00 +0200 https://popups.uliege.be/0351-580x/index.php?id=4754 https://popups.uliege.be/0351-580x/index.php?id=4758 Thu, 15 Oct 2015 00:00:00 +0200 https://popups.uliege.be/0351-580x/index.php?id=4758 https://popups.uliege.be/0351-580x/index.php?id=4761 Thu, 15 Oct 2015 00:00:00 +0200 https://popups.uliege.be/0351-580x/index.php?id=4761 https://popups.uliege.be/0351-580x/index.php?id=4763 Thu, 15 Oct 2015 00:00:00 +0200 https://popups.uliege.be/0351-580x/index.php?id=4763 https://popups.uliege.be/0351-580x/index.php?id=4765 Thu, 15 Oct 2015 00:00:00 +0200 https://popups.uliege.be/0351-580x/index.php?id=4765 https://popups.uliege.be/0351-580x/index.php?id=4683 Thu, 15 Oct 2015 00:00:00 +0200 https://popups.uliege.be/0351-580x/index.php?id=4683