Fernando L.P. Pessoa

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Organisations are increasingly recognising the importance of managing what they consider their most valuable asset: knowledge. This work is a contribution towards that end, proposing a system for representing, recording, using, retrieving, and managing individual and group knowledge: a group memory system. This paper describes the high-level objective of(More)
Grapevine species (Vitis sp.) are prone to several diseases, fungi being the major pathogens compromising its cultivation and economic profit around the world. Knowledge of the complexity of mechanisms responsible for resistance to fungus infection of cultivars, such as Regent, is necessary for strategies to be defined which will improve resistance in(More)
Transcriptional changes in Pisolithus tinctorius leading to ectomycorrhizal formation in P. tinctorius– Castanea sativa were investigated using a 12-h fungal interaction in vitro system. Using a 3107-cDNA clone microarray, 34 unique expressed sequence tags (ESTs) were found to be differentially expressed. These ESTs represent 14 known genes, 5 upregulated(More)
Hop (Humulus lupulus L.) is an economically important plant forming organogenic nodules which can be used for genetic transformation and micropropagation. We are interested in the mechanisms underlying reprogramming of cells through stress and hormone treatments. An integrated molecular and metabolomic approach was used to investigate global gene expression(More)
This paper examines an experiment in which pairs of people interact directly via a haptic interface over a network path that has significant physical distance and number of network hops. The task of the experimental subjects was to cooperate in lifting a box together under one of four conditions in a between groups design. Questionnaires were used to report(More)
Abstract In 1995 University Fernando Pessoa set, as a requirement for admission, that every first year student should have a portable computer. The University offers courses in areas such as social sciences, psychology, management, literature, advertising, and engineering, and wanted its students to acquire the basic skills to use, interact and survive a(More)
The wet mechanochemical process (MC) and chemical precipitation (CP) used to prepare hydroxyapatite (HA) and tricalcium phosphate (TCP) nanoparticles proved to be successful. In mechanochemical treatment, water and ethanol were used as a solvent but the last one improved particles agglomeration and decreased HA formation. This effect was also observed when(More)
Modeling of the properties of biochemical components is gaining increasing interest due to its potential for further application within the area of biochemical process development. Generally protein solution properties such as protein solubility are expressed through component activity coefficients which are studied here. The original UNIQUAC model is(More)
Turning a century is always troublesome for common and well-established systems. Like in other historical contexts, several questions arise to challenge our values on the way the world is working. What are the real effects that the evolving education system will bring to the society and the political global balance that we knew? What will be the new forms,(More)