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Plant pathologists have traditionally worked in the area of clarifying and understanding the disease cycles of specific diseases, factors influencing epidemiology, yield loss potential and host-pathogen interactions in order to be able to minimise the disease risk, build warning systems or recommend specific control thresholds in relation to the application(More)
In spite of many initiatives to increase sustainability, agriculture moves in the opposite direction with increased pesticide impacts and decreased nature quality. Here, we propose that this issue is not mainly due to lack of agronomic knowledge, but due to the lack of knowledge on social processes of specialization and differentiation. Here, we review the(More)
From a rural, sociological point of view no social theories have so far been able to grasp the ontological complexity and special character of a farm enterprise as an entity in a really satisfying way. The contention of this paper is that a combination of Luhmann's theory of social systems and actor-network theory (ANT) of Latour, Callon, and Law offers a(More)
From a rural, sociological point of view no social theories have so far been able to grasp the ontological complexity and special character of a farm enterprise as an entity in a really satisfying way. The contention of this paper is that a combination of Luhmann's theory of social systems and the actor-network theory (ANT) of Latour, Callon, and Law offers(More)
Alzheimer's disease (AD) is a multifactorial entity with a complex pathogeny. Recent findings on this subject are discussed in this article, centering mainly on genetic factors, cerebral ischemia and their association with the most typical histologic lesions in AD. Finally, a hypothetical model is proposed, in which beta-amyloid represents the key element.
Although up to 5-20% of the patients who underwent surgery with hypothermia and cardiac arrest may present neurological complications, just a few cases of ocularmotor disorders have been described. Acquired supranuclear ocular motor paresis (ASOMP) is a rare disorder characterized by impairment in volitional and reflex saccades and smooth pursuit in one or(More)
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