Diagnosing Salient Alternative Effects

Author(s):  
Mikkel Gerken

Chapter 10 addresses the salient alternative effects on knowledge ascriptions by developing the epistemic focal bias account. According to this account, denials of knowledge in the face of a salient alternative often amount to false negatives. But while this is argued to be central to a comprehensive diagnosis, it is recognized that other psychological factors may also influence this class of judgments, and some of these are discussed. Furthermore, the epistemic focal bias account is integrated with a number of assumptions drawn from cognitive pragmatics. In this manner, Chapter 10 provides an empirical account and philosophical diagnosis of the puzzling pattern of knowledge ascriptions constituted by salient alternative effects.

1978 ◽  
Vol 35 (1) ◽  
pp. 41-42 ◽  
Author(s):  
E. Nolan ◽  
J. Kagan

Author(s):  
Mikkel Gerken

Chapter 2 surveys the philosophical reasons and empirical evidence for assuming that there are a number of puzzling patterns of knowledge ascriptions. Three effects on folk knowledge ascriptions are considered in turn. The first one is an alternatives effect—roughly, the inclination to deny S knowledge that p in the face of a salient alternative, q. The second effect is a contrast effect—roughly, the idea that whether an alternative, q, to S’s knowledge is “in contrast” partly determines our inclination to ascribe knowledge. The third effect is a practical factor effect—roughly, the effect of salient practical factors on our inclination to ascribe knowledge. Overall, Chapter 2 provides a state-of-the-art presentation of the shifty patterns of knowledge ascriptions.


2013 ◽  
Vol 23 (4) ◽  
pp. 251-266 ◽  
Author(s):  
MG Cherry ◽  
P Salmon ◽  
JM Dickson ◽  
D Powell ◽  
S Sikdar ◽  
...  

SummaryMost individuals with dementia live in the community, receiving care from family or lay carers. Carers’ wellbeing, and the quality of the care they provide, depends on their resilience in the face of the challenges associated with caring for someone with dementia. However, factors associated with carers’ resilience are not yet fully understood. The aim of this review is to present a narrative synthesis of factors, materials and resources associated with carers’ resilience. Electronic and hand searches identified relevant published literature, which was narratively synthesized. A framework consisting of three inter-related domains of factors influencing carers’ resilience emerged, encompassing: social and cultural factors; properties of the care relationship; and carers’ psychological factors. Holistic assessment based on this framework can help practitioners to identify vulnerable carers and to target help on factors that help to make them vulnerable but that are amenable to change.


2007 ◽  
Vol 19 (3) ◽  
pp. 889-920 ◽  
Author(s):  
M. E. M. Haglund ◽  
P. S. Nestadt ◽  
N. S. Cooper ◽  
S. M. Southwick ◽  
D. S. Charney

Resilience refers to the ability to successfully adapt to stressors, maintaining psychological well-being in the face of adversity. Recent years have seen a great deal of research into the neurobiological and psychological factors and mechanisms that characterize resilient individuals. This article draws from that research to outline some of the most important contributors to resilience. The authors hope that by contributing to a growing understanding of the genetic, developmental, neurobiological, and psychological underpinnings of resilience, researchers and clinicians in the field will move closer toward the goal of identifying and treating individuals at risk for developing posttraumatic psychopathology.


1999 ◽  
Vol 38 (4II) ◽  
pp. 1117-1132
Author(s):  
Toseef Azid ◽  
Muhammad Akbar Noor

The behaviour of firms is still a little understood matter. Why one firm or industry is investing more than the other or what makes a firm enter or exit from the market, what are the psychological factors that go to make a choice of this kind are questions that have not been answered satisfactorily. Concepts like irreversibility, uncertainty, investment, and the value of waiting are very much there in the literature, e.g., McDonald and Siegel (1985, 1986); Nickell (1974); Schmalensee (1972); Hartman (1972); Henry (1974) and LAM (1989) and others. But the psychology of decision-making on the face of losses has not received much attention in the literature. That the Economic Hysteresis1 and Layers of Techniques2, developed by Professor A. Dixit and Professor P. N. Mathur respectively tackle. The former is discussed by Pindyck (1988, 1991, 1992) and Dixit (1989, 1989a, 1991, 1992); while Mathur (1977, 1989, 1990); Law and Azid (1993); Azid and Ghosh (1998) and Rashid (1989,1989a) have discussed the latter.


2018 ◽  
Vol 41 ◽  
Author(s):  
Samuel G. B. Johnson

AbstractZero-sum thinking and aversion to trade pervade our society, yet fly in the face of everyday experience and the consensus of economists. Boyer & Petersen's (B&P's) evolutionary model invokes coalitional psychology to explain these puzzling intuitions. I raise several empirical challenges to this explanation, proposing two alternative mechanisms – intuitive mercantilism (assigning value to money rather than goods) and errors in perspective-taking.


1997 ◽  
Vol 161 ◽  
pp. 203-218 ◽  
Author(s):  
Tobias C. Owen

AbstractThe clear evidence of water erosion on the surface of Mars suggests an early climate much more clement than the present one. Using a model for the origin of inner planet atmospheres by icy planetesimal impact, it is possible to reconstruct the original volatile inventory on Mars, starting from the thin atmosphere we observe today. Evidence for cometary impact can be found in the present abundances and isotope ratios of gases in the atmosphere and in SNC meteorites. If we invoke impact erosion to account for the present excess of129Xe, we predict an early inventory equivalent to at least 7.5 bars of CO2. This reservoir of volatiles is adequate to produce a substantial greenhouse effect, provided there is some small addition of SO2(volcanoes) or reduced gases (cometary impact). Thus it seems likely that conditions on early Mars were suitable for the origin of life – biogenic elements and liquid water were present at favorable conditions of pressure and temperature. Whether life began on Mars remains an open question, receiving hints of a positive answer from recent work on one of the Martian meteorites. The implications for habitable zones around other stars include the need to have rocky planets with sufficient mass to preserve atmospheres in the face of intensive early bombardment.


Author(s):  
G.J.C. Carpenter

In zirconium-hydrogen alloys, rapid cooling from an elevated temperature causes precipitation of the face-centred tetragonal (fct) phase, γZrH, in the form of needles, parallel to the close-packed <1120>zr directions (1). With low hydrogen concentrations, the hydride solvus is sufficiently low that zirconium atom diffusion cannot occur. For example, with 6 μg/g hydrogen, the solvus temperature is approximately 370 K (2), at which only the hydrogen diffuses readily. Shears are therefore necessary to produce the crystallographic transformation from hexagonal close-packed (hep) zirconium to fct hydride.The simplest mechanism for the transformation is the passage of Shockley partial dislocations having Burgers vectors (b) of the type 1/3<0110> on every second (0001)Zr plane. If the partial dislocations are in the form of loops with the same b, the crosssection of a hydride precipitate will be as shown in fig.1. A consequence of this type of transformation is that a cumulative shear, S, is produced that leads to a strain field in the surrounding zirconium matrix, as illustrated in fig.2a.


Author(s):  
F. Monchoux ◽  
A. Rocher ◽  
J.L. Martin

Interphase sliding is an important phenomenon of high temperature plasticity. In order to study the microstructural changes associated with it, as well as its influence on the strain rate dependence on stress and temperature, plane boundaries were obtained by welding together two polycrystals of Cu-Zn alloys having the face centered cubic and body centered cubic structures respectively following the procedure described in (1). These specimens were then deformed in shear along the interface on a creep machine (2) at the same temperature as that of the diffusion treatment so as to avoid any precipitation. The present paper reports observations by conventional and high voltage electron microscopy of the microstructure of both phases, in the vicinity of the phase boundary, after different creep tests corresponding to various deformation conditions.Foils were cut by spark machining out of the bulk samples, 0.2 mm thick. They were then electropolished down to 0.1 mm, after which a hole with thin edges was made in an area including the boundary


2002 ◽  
Vol 69 ◽  
pp. 117-134 ◽  
Author(s):  
Stuart M. Haslam ◽  
David Gems ◽  
Howard R. Morris ◽  
Anne Dell

There is no doubt that the immense amount of information that is being generated by the initial sequencing and secondary interrogation of various genomes will change the face of glycobiological research. However, a major area of concern is that detailed structural knowledge of the ultimate products of genes that are identified as being involved in glycoconjugate biosynthesis is still limited. This is illustrated clearly by the nematode worm Caenorhabditis elegans, which was the first multicellular organism to have its entire genome sequenced. To date, only limited structural data on the glycosylated molecules of this organism have been reported. Our laboratory is addressing this problem by performing detailed MS structural characterization of the N-linked glycans of C. elegans; high-mannose structures dominate, with only minor amounts of complex-type structures. Novel, highly fucosylated truncated structures are also present which are difucosylated on the proximal N-acetylglucosamine of the chitobiose core as well as containing unusual Fucα1–2Gal1–2Man as peripheral structures. The implications of these results in terms of the identification of ligands for genomically predicted lectins and potential glycosyltransferases are discussed in this chapter. Current knowledge on the glycomes of other model organisms such as Dictyostelium discoideum, Saccharomyces cerevisiae and Drosophila melanogaster is also discussed briefly.


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