Auxin perception and downstream events

Auxin perception--structural insights.

The identity of the auxin receptor(s) and the mechanism of auxin perception has been a subject of intense interest since the discovery of auxin almost a century ago. The development of genetic approaches to the study of plant hormone signaling led to the discovery that auxin acts by promoting degradation of transcriptional repressors called Aux/IAA proteins. This process requires a ubiquitin pr...

Discrimination and Sequentialization of Events in Perception

There are different conceptions of time in different scientific disciplines. Apart from millennia of philosophical discussions of time (cf. [1]), a particularly outstanding discrepancy persists between the concepts of time used in fundamental physical theories on the one hand and psychological theories of perception and cognition on the other. The prevailing concept of time in physical theories...

Perception and identification of random events.

The cognition of randomness consists of perceptual and conceptual components. One might be able to discriminate random from nonrandom stimuli, yet be unable to identify which is which. In a series of experiments, we compare the ability to distinguish random from nonrandom stimuli to the accuracy with which given stimuli are identified as "random." In a further experiment, we also evaluate the e...

Adverse events following immunization: perception and evidence.

PURPOSE OF REVIEW The aim of this article is to highlight the evidence on new and ongoing vaccine safety concerns in the light of several vaccines recently licensed and others made available and recommended more widely. RECENT FINDINGS There is increasingly convincing epidemiologic and laboratory evidence against a causal relation of several alleged adverse events following immunization. The ...

Austinian Propositions, Davidsonian Events and Perception Complements