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Apicobasal polarity is known to affect epithelial morphogenesis and cell differentiation, but it remains unknown how these processes are mechanistically orchestrated. We find that ligand-specific EGFR signalling via PI(3)K and Rac1 autonomously modulates apicobasal polarity to enforce the sequential control of morphogenesis and cell differentiation. Initially, EGF controls pancreatic tubulogenesis
The oomycete Phytophthora infestans is the most harmful pathogen of potato. It causes the disease late blight, which generates increased yearly costs of up to one billion euro in the EU alone and is difficult to control. We have performed a large-scale quantitative proteomics study of six P. infestans life stages with the aim to identify proteins that change in abundance during development, with a
A direct correlation between the reaction activity and the surface structure of a catalyst is generally needed to better understand the mechanisms behind the heterogeneous catalysis process. In this work, we employed planar laser-induced fluorescence (PLIF) to spatially resolve the CO2 distribution just above a Pd(100) surface, and simultaneously monitored the optical reflectance of the surface, d
The interaction of water vapor and sulfur dioxide (SO2) with single crystal cuprous oxide (Cu2O) surfaces of (100) and (111) termination was studied by photoelectron spectroscopy (PES) and density functional theory (DFT). Exposure to near-ambient pressures of water vapor, at 5 × 10-3 %RH and 293 K, hydroxylates both Cu2O surfaces with OH coverage up to 0.38 copper monolayers (ML) for (100) and 0.2
Hallmarks of type 2 diabetes (T2D) include elevated blood glucose and free fatty acids (FFAs) as a result of impaired β cell insulin secretion and decreased β cell mass. The glucose-stimulated insulin secretion (GSIS) in β cells is triggered by depolarization-evoked Ca2+ entry through voltage-gated Ca2+ (CaV) channels. The majority of CaV channels are believed to reside in cholesterol-rich membran
It has long been known that humans use the focus of expansion (FOE) in a radial optic flow pattern to perceive their instantaneous direction of self-motion (heading). Here we report that motion-streak-like form information is also used for heading perception. We presented observers with an integrated form and motion display in which the dot pairs of a radial Glass patterns were oriented toward one
Can financial institutions and markets enhance the discipline imposed by competitive product markets and thus improve resource allocation in the real economy? We address this question in the context of international trade, using disaggregated product-level data from 71 countries exporting to the USA. We show that exported products exit the US market sooner if they stand far away from the exporting
This study estimates the causal effect of receiving additional paid vacation days on health. Using register data on the universe of central government employees in Sweden, I exploit an age-based rule stipulated in the collective agreement covering these employees. Identification is achieved by combining a regression discontinuity with a difference-in-differences design to control for time-invarian
Olfaction presents a particularly interesting arena to explore abstraction in language. Like other abstract domains, such as time, odours can be difficult to conceptualize. An odour cannot be seen or held, it can be difficult to locate in space, and for most people odours are difficult to verbalize. On the other hand, odours give rise to primary sensory experiences. Every time we inhale we are usi
Since its first appearance in the novel La Place de l’étoile (1968), the motif of the police van (panier à salade) has never stopped showing up in Modiano’s works. This article focusses on the scene with the police van in seven novels, in order to show its obsessional character. The analysis shows that the police van appears in a scenario which the reader recognizes from one novel to another, desp
