Diffusetes from seedlings and root exudates from 6-week-old plants of a monoecious line of cucumber, Cucumis sativus L., contained considerably higher levels of gibberellin.(GA-)like substances than did those from plants of an isogenic gynoecious line. Most of the GA4ike activity was found in a chromatogram region ty.pical of GA1 and GA3; some activity, particularly in root exudates, appeared a...

Fruit yield, earliness, and quality have low to moderate heritability, but are traits of major importance in cucumber (Cucumis sativus L.). The objective of this study was to determine the changes made in those traits using recurrent selection in three slicing cucumber populations (NCMBS, NCES1, and NCBA1). During population improvement, one or two replications of 200 to 335 half-sib families w...

Exposure of U937 cells to an otherwise nontoxic concentration of peroxynitrite promotes a rapid necrotic response in the presence of pharmacological inhibitors of phospholipase A2. A 12fold higher concentration of the oxidant, in the absence of additional treatments, caused remarkably greater DNA singlestrand breakage, delayed formation of H2O2, and depletion of reduced glutathione but an ident...

Dietary lipids and fat-soluble micronutrients are solubilized in mixed micelles and absorbed in the small intestine. Based on an assumption that cholesterol and other fat-soluble molecules share a number of transport mechanisms and the fact that Niemann-Pick C1-like 1 (NPC1L1) is critical for intestinal cholesterol absorption, we hypothesized that some fat-soluble molecules may be transported b...

Free AccessSupporting Academic Freedom and Living Societal ResponsibilityThe Role of Authors, Reviewers, Editors in the Publication Process at EJPADragos Iliescu, Samuel Greiff, René Proyer, Matthias Ziegler, Mark Allen, Laurence Claes, Marjolein Fokkema, Penelope Hasking, Annemarie Hiemstra, Marlies Maes, Marcus Mund, Chris Nye, Ronny Scherer, Eunike Wetzel, Pia ZeinounDragos Iliescu Faculty P...

Water stress applied to the plant shoot through enhanced evaporative demands reduced cytokinin activity in extracts of xylem exudate and leaves. This reduction resembled the changes in cytokinin activity caused by water stress applied to the root. Cytokinin activity in detached wilting leaves decreased rapidly. Recovery took place after several hours in a humid chamber. Experiments with "4C-kin...

s Previous studies indicated that intermittent hypoxia resulted in an enhancement of plasma testosterone, increased response of Leydig cells to human chorionic gonadotropin (hCG), and angiogenesis in rat testes. Hypoxia has been shown to stimulate the expression of vascular endothelial growth factor (VEGF), which is a major mediator for angiogenesis and vasculogenesis. During hypoxia, VEGF prom...

Inhibition of expression of cell adhesion molecules (CAM), including intercellular CAM-1 (ICAM-1), vascular CAM-1 (VCAM1), and E-selectin, has been shown to be important in controlling various inflammatory diseases. The cell adhesion proteins are induced by various inflammatory cytokines, such as tumor necrosis factor-a, interleukin-1, and bacterial lipopolysaccharide. The induction process pri...

What is the role of citizenship in a protest? How are civilian rights used as a source of power to craft socio-spatial strategies of dissent? I argue that the growing civilian consciousness of the “power to” (i.e. capacity to act) and of the border as public space is enhancing civil participation and new dissent strategies through which participants consciously and sophisticatedly use their cit...

In their article "Perspectives on Video Games as Art" Jeroen Bourgonjon, Geert Vndermeersche, and Kris Rutten engage in discussing whether or not video games can be considered a form of art. Although this question has already been discussed elaborately, the debate is guided by many different and often conflicting positions. The aim of this article is to revisit this debate by mapping out a rang...