Influencing Choices by Changing Beliefs: A Logical Theory of Influence, Persuasion, and Deception

Wemodelpersuasion,viewedasadeliberateactionthroughwhichan agent (persuader) changes the beliefs of another agent’s (persuadee). This notion of persuasion paves the way to express the idea of persuasive influence, namely inducing a change in the choices of the persuadee by changing her beliefs. It allows in turns to express different aspects of deception. To this end, we propose a logical framework that enables expressing actions and capabilities of agents, their mental states (desires, knowledge and beliefs), a variety of agency operators as well as the connection between mental states and choices. Those notions, once combined, enable us to capture, the notion of influence, persuasion and deception, as well as their relation

Grounding power on actions and mental attitudes

International audienceThe main objective of this work is to develop a logic called IAL (Intentional Agency Logic) in which we can reason about mental states of agents, action occurrences, and agentive and group powers. IAL will be exploited for a formal analysis of different forms of power such as an agent i's power of achieving a certain result and an agent i's power over another agent j (alias social power)

O gorgulho do milho Sitophilus zeamais (Coleptera: Curculionidae) como praga em frutíferas de clima temperado.

bitstream/CNPUV/8136/1/cir058.pd

Dynamic context logic

International audienceBuilding on a simple modal logic of context, the paper presents a dynamic logic characterizing operations of contraction and expansion on theories. We investigate the mathematical properties of the logic, and show how it can capture some aspects of the dynamics of normative systems once they are viewed as logical theories

Avaliação de impactos econômicos sociais e ambientais de algumas tecnologias geradas pela Embrapa Trigo.

bitstream/CNPT-2010/40708/1/p-do90.pd

β-Cell Autoimmunity in Pediatric Celiac Disease: The Case for Routine Screening?

OBJECTIVE—To evaluate the prevalence of β-cell autoimmunity and the usefulness of a type 1 diabetes screening in patients with celiac disease

Evolução dos defeitos da soja comercial durante o armazenamento em função da infestação de percevejos na lavoura.

O objetivo deste trabalho foi determinar a evolução dos defeitos da soja comercial durante 360 dias de armazenamento, em função da infestação de percevejos na lavoura