Representing Representations

2021 ◽  
pp. 177-234
Author(s):  
Kenneth A. Taylor

This chapter champions the priority of objectual representations and reference to the world over fine-grained “inner” mental representations. The main argument rests upon demonstrating that our attitude ascriptions practices give priority to de re ascriptions of mental contents over de dicto ascriptions of mental contents. The argument thereby advances a rejection of the Fregean tradition that construes modes of presentations of objects as essential to the characterization of mental contents within attitude ascriptions. A novel argument is advanced invoking the evaluative commitments expressed with embedded referential slurring terms in argument position, showing them to reveal derogatory attitudes of the ascriber, not the ascribee, and then showing by analogy that the same obtains for existential and referential commitments: they do not typically invoke Fregean modes of presentation by which the ascribee cognizes the world. The chapter ends by reexamining substitution puzzles and the nature of de re belief.

Minerals ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 101
Author(s):  
Paraskevi Lampropoulou ◽  
Vayia Xanthopoulou ◽  
Małgorzata Wojtaszek-Kalaitzidi ◽  
Petros Petrounias ◽  
Elena Zoumpouli ◽  
...  

In this study, siliceous nodules from the world-famous Myrtos beach, as well as from Avithos beach, in the western flanks of Kefalonia Island in Greece are examined by means of petrographical, mineralogical, geochemical and micropaleontological methods. The objectives of this study are to characterize the textural and compositional features of the nodules, with the aim to provide an initial interpretation of their origin and their diagenetic evolution. The studied siliceous nodules are hosted within Lower Cretaceous thin-bedded limestones at Myrtos and Upper Eocene limestones at Avithos. Nodules from both areas display a characteristic concentric texture at a macroscopic and microscopic scale. They both have a dense fine-grained siliceous sedimentary fabric, composed mainly of microcrystalline or cryptocrystalline quartz and moganite with common residual calcite in the case of Avithos. These results, and in particular the shape of the nodules, along the textural and compositional characteristics, indicate different conditions of formation in the two localities, both during the early epigenetic stages, as well as later during the diagenetic processes. Myrtos nodules originated from Si-precursors deposited in a pelagic environment, going through intense Si-replacement. Avithos nodules were deposited in a more proximal environment, being influenced by a less intense silicification. Nevertheless, the higher degree of recrystallization of Avithos samples indicates a syn- or post-diagenetic tectonic activity that resulted in the circulation of geothermal fluids. The conclusions drawn from this work demonstrate the usefulness of thorough studies of siliceous nodules in order to get a more comprehensive understanding of the initial depositional conditions, as well as diagenetic pathways and processes.


Author(s):  
Dominic McIver Lopes

While the main argument for the network theory of aesthetic value is that it better explains the facts about aesthetic activity than does aesthetic hedonism, the two theories share some common assumptions. Aesthetic evaluations are mental representations that attribute aesthetic values to items. Aesthetic acts are acts based on aesthetic evaluations. Aesthetic values figure in aesthetic reasons, which are practical reasons. That is, an aesthetic reason lends weight to the proposition that an agent should perform some act—an act of aesthetic appreciation, for example. Hence, one task for a theory of aesthetic value is to state what makes some values aesthetic. A second is to state what makes it the case that an aesthetic property figures in a reason that lends weight to what an agent should do. Aesthetic hedonism and the network theory offer only to explain the practical normativity of aesthetic value.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nathalie Raharimalala ◽  
Stephane Rombauts ◽  
Andrew McCarthy ◽  
Andréa Garavito ◽  
Simon Orozco-Arias ◽  
...  

AbstractCaffeine is the most consumed alkaloid stimulant in the world. It is synthesized through the activity of three known N-methyltransferase proteins. Here we are reporting on the 422-Mb chromosome-level assembly of the Coffea humblotiana genome, a wild and endangered, naturally caffeine-free, species from the Comoro archipelago. We predicted 32,874 genes and anchored 88.7% of the sequence onto the 11 chromosomes. Comparative analyses with the African Robusta coffee genome (C. canephora) revealed an extensive genome conservation, despite an estimated 11 million years of divergence and a broad diversity of genome sizes within the Coffea genus. In this genome, the absence of caffeine is likely due to the absence of the caffeine synthase gene which converts theobromine into caffeine through an illegitimate recombination mechanism. These findings pave the way for further characterization of caffeine-free species in the Coffea genus and will guide research towards naturally-decaffeinated coffee drinks for consumers.


2021 ◽  
Vol 5 (5) ◽  
pp. 23
Author(s):  
Robert Rowe

The history of algorithmic composition using a digital computer has undergone many representations—data structures that encode some aspects of the outside world, or processes and entities within the program itself. Parallel histories in cognitive science and artificial intelligence have (of necessity) confronted their own notions of representations, including the ecological perception view of J.J. Gibson, who claims that mental representations are redundant to the affordances apparent in the world, its objects, and their relations. This review tracks these parallel histories and how the orientations and designs of multimodal interactive systems give rise to their own affordances: the representations and models used expose parameters and controls to a creator that determine how a system can be used and, thus, what it can mean.


Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 459
Author(s):  
Ignacio Cazcarro ◽  
Albert E. Steenge

This article originates from the theoretical and empirical characterization of factors in the World Trade Model (WTM). It first illustrates the usefulness of this type of model for water research to address policy questions related to virtual water trade, water constraints and water scarcity. It also illustrates the importance of certain key decisions regarding the heterogeneity of water and its relation to the technologies being employed and the prices obtained. With regard to WTM, the global economic input–output model in which multiple technologies can produce a “homogeneous output”, it was recently shown that two different mechanisms should be distinguished by which multiple technologies can arise, i.e., from “technology-specific” or from “shared” factors, which implies a mechanism-specific set of prices, quantities and rents. We discuss and extend these characterizations, notably in relation to the real-world characterization of water as a factor (for which we use the terms technology specific, fully shared and “mixed”). We propose that the presence of these separate mechanisms results in the models being sensitive to relatively small variations in specific numerical values. To address this sensitivity, we suggest a specific role for specific (sub)models or key choices to counter unrealistic model outcomes. To support our proposal we present a selection of simulations for aggregated world regions, and show how key results concerning quantities, prices and rents can be subject to considerable change depending on the precise definitions of resource endowments and the technology-specificity of the factors. For instance, depending on the adopted water heterogeneity level, outcomes can vary from relatively low-cost solutions to higher cost ones and can even reach infeasibility. In the main model discussed here (WTM) factor prices are exogenous, which also contributes to the overall numerical sensitivity of the model. All this affects to a large extent our interpretation of the water challenges, which preferably need to be assessed in integrated frameworks, to account for the main socioeconomic variables, technologies and resources.


2005 ◽  
Vol 13 (1) ◽  
pp. 73-90
Author(s):  
Sebastian Knell

The paper presents an interpretation of Brandom’s analysis of de re specifying attitude-ascriptions. According to this interpretation, his analysis amounts to a deflationist conception of intentionality. In the first section I sketch the specific role deflationist theories of truth play within the philosophical debate on truth. Then I describe some analogies between the contemporary constellation of competing truth theories and the current confrontation of controversial theories of intentionality. The second section gives a short summary of Brandom’s analysis of attitude-ascription, focusing on his account of the grammar of de re ascriptions of belief. The third section discusses in detail those aspects of his account from which a deflationist conception of intentionality may be derived, or which at least permit such a conception. In the proposed interpretation of Brandom’s analysis, the vocabulary expressing the representational directedness of thought and talk does not describe a genuine property of mental states, but has an alternative descriptive function and in addition contains a performative and a meta­descriptive element.


1997 ◽  
Vol 1 (1) ◽  
pp. 52-65
Author(s):  
Hye-Joon Yoon

Area studies, as a newly fashionable field of academic research, needs to recognize its less likely precedents if it is going to secure for itself a fresh start. The question of “desire” is relevant here because it indicates the less value-free aspects in its genealogy. As shown in Emma Bovary's embellished representation of Paris at her provincial home, an understanding of an area often reflects the particular needs and desires of the one who understands that area. Such restricted and restricting views of an area repeats itself outside the world of literary fictions, as is shown by the example of Guizot's picture of Europe in which his own country is given a privileged place as the very center of Western civilization itself. An instructive case showing the thin line between the projected desire of one who strives to know a geographical area and the scientific purity of the labor itself is further offered by Napoleon Bonaparte's heavy reliance on Orientalist scholarship in his invasion of Egypt. Moving further east from Egypt to China, we witness the denigrating remarks on China made by the great German thinkers of the past century, Hegel and Weber. Although their characterization of Chinese culture could find echoes in unbiased empirical research, they reveal all the same the trace of Europeans' desire to affirm their superiority over the supposedly inferior and false civilization of the East. Similarly, the Americans who divided the Korean peninsular at the 38th Parallel, with unquestioning confidence in their knowledge of the area and in the justice of their action, rightfully deserve their place in the tradition of Western area studies of serving the needs to dominate, control and exploit an objectified overseas territory. He assumed that words had kept their meaning, that desires still pointed in a single direction, and that ideas retained their logic; and he ignored the fact that the world of speech and desires has known invasions, struggles, plundering, disguises, ploys. From these elements, however, genealogy retrieves an indispensable restraint: it must record the singularity of events outside of any monotonous finality; it must seek them in the most unpromising places, in what we tend to feel is without history—in sentiments, love, conscience, instincts; it must be sensitive to their recurrence, not in order to trace the gradual curve of their evolution, but to isolate the different scenes where they engaged in different roles. — Michel Foucault, “Nietzsche, Genealogy, History” (Foucault 139–40).


2012 ◽  
Vol 68 ◽  
pp. 14-21 ◽  
Author(s):  
H. Alihosseini ◽  
G. Faraji ◽  
A.F. Dizaji ◽  
K. Dehghani
Keyword(s):  

Author(s):  
Heather J. Ferguson ◽  
Lena Wimmer ◽  
Jo Black ◽  
Mahsa Barzy ◽  
David Williams

AbstractWe report an event-related brain potential (ERP) experiment that tests whether autistic adults are able to maintain and switch between counterfactual and factual worlds. Participants (N = 48) read scenarios that set up a factual or counterfactual scenario, then either maintained the counterfactual world or switched back to the factual world. When the context maintained the world, participants showed appropriate detection of the inconsistent critical word. In contrast, when participants had to switch from a counterfactual to factual world, they initially experienced interference from the counterfactual context, then favoured the factual interpretation of events. None of these effects were modulated by group, despite group-level impairments in Theory of Mind and cognitive flexibility among the autistic adults. These results demonstrate that autistic adults can appropriately use complex contextual cues to maintain and/or update mental representations of counterfactual and factual events.


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