Analysing the perceptions of pedestrians and drivers to shared space

Shared space is an approach to improving streets and places where both pedestrians and vehicles are present, with layouts related more to the pedestrian scale and with features encouraging drivers to assume priority having been reduced or removed. It creates a more pedestrian-friendly environment than conventional street layouts, which are based on greater segregation between pedestrians and vehicles, while at the same time introducing uncertainty, which makes drivers engage more fully with their surroundings, leading to lower vehicle speeds and improved safety. This paper investigates the importance of certain person-, context- and design-specific factors affecting the perceptions of pedestrians and drivers to shared space. Using two web-based stated-preference surveys, two sets of responses are collected from pedestrians and drivers, who are presented with different combinations of binary factors forming scenarios. Regression analysis is carried out with logit models for each survey. The results suggest that pedestrians feel most comfortable in shared space under conditions which ensure their presence is clear to other road users – these conditions include low vehicular traffic, high pedestrian traffic, good lighting and pedestrian-only facilities. Conversely, the presence of many pedestrians and, in particular, children and elderly, makes drivers feel uneasy and, therefore, enhances their alertness.     

An explanation of the indentation size effect in ceramics

Abstract

A quantitative model is proposed to explain the indentation size effect (ISE) often observed in the hardness response of hard brittle materials, namely that hardness is observed to increase with decreasing indentation size. The model is based on a mixed elastic/plastic materials deformation response whereby plastic deformation occurs in a discrete manner progressively to relieve stresses created by elastic flexure of the surface at the edges of the indentation. During unloading of the indenter, recovery of the elastic increment of deformation, which precedes each new band of plastic deformation, results in the indentation appearing smaller than expected, particularly as the indentation sizes decrease to approach the scale of the plastic deformation band spacing. The model fits observed experimental data well and analysis of hardness/size data in this way is shown to allow both a bulk hardness value and a characteristic deformation band scale to be calculated for a given sample.     

Increased susceptibility to proactive interference in adults with dyslexia?

Recent findings show that people with dyslexia have an impairment in serial-order memory. Based on these findings, the present study aimed to test the hypothesis that people with dyslexia have difficulties dealing with proactive interference (PI) in recognition memory. A group of 25 adults with dyslexia and a group of matched controls were subjected to a 2-back recognition task, which required participants to indicate whether an item (mis)matched the item that had been presented 2 trials before. PI was elicited using lure trials in which the item matched the item in the 3-back position instead of the targeted 2-back position. Our results demonstrate that the introduction of lure trials affected 2-back recognition performance more severely in the dyslexic group than in the control group, suggesting greater difficulty in resisting PI in dyslexia.     

Psychological treatment and reconstruction with a chronic pain patient

This article describes the psychological treatment of a chronic pain patient using a single case design methodology in order to evaluate changes in symptomatic measures as well as in Repertory Grid Test scores. These changes included a substantial reduction in levels of subjective pain and anxiety as well as a reduction in symptom superordinacy, level of self-dissatisfaction, and positive meaning (“payoff”) of anxiety. Results are discussed in relation to the literature on pain and on personal construct theory.     

Changing Their Minds: Enhancing Poststroke Occupational Performance Using Transcranial Direct Current Stimulation

Stroke remains a leading cause of disability, with survivors experiencing long-term decrements in independence and quality of life. Occupational therapists (OTs) employ numerous neurorehabilitative treatment approaches to remediate impairments that are impeding performance. OTs also use physical agent modalities to facilitate increased participation and success in therapy. One such modality is transcranial direct current stimulation (tDCS), a form a noninvasive brain stimulation that can be overlaid onto task practice and delivers a constant, low intensity current into the brain. tDCS is safe, portable, and efficacious in remediating a variety of deficits, yet is not consistently incorporated into clinical practice. The authors discuss the mechanisms, safety, evidence, and potential applications of tDCS to enhance outcomes for this growing population.     

Listeners influence speakers’ perceived communication effectiveness

People have an exaggerated sense of self-efficacy. This paper investigates the mechanism behind speakers’ tendency to overestimate their communication efficacy. Two competing mechanisms were tested: intrapersonal and interpersonal. Speakers communicated a series of ambiguous statements to a co-present or absent listener and then estimated their success. Speakers overestimated their ability to communicate their intended message (relative to listeners’ actual comprehension of their message) when a listener was co-present, but not when a listener was absent. Our findings support an interpersonal explanation of speakers’ perceived communication efficacy.     

MIND‐INDEPENDENCE DISAMBIGUATED: SEPARATING THE MEAT FROM THE STRAW IN THE REALISM/ANTI‐REALISM DEBATE

The notion of mind‐independence plays a central role in the contemporary realism/anti‐realism debate, but the notion is severely ambiguous and consequently the source of considerable misunderstanding. In this paper, four kinds of mind‐independence are distinguished: ontological, causal, structural, and individuative independence. Appreciating these distinctions entails that one can reject the individuative independence of the natural world, and still maintain that the natural world is causally and structurally independent of us. This paper argues that so‐called anti‐realists, especially Rorty, Putnam, and Goodman, are not opposed to the causal and structural independence of the natural world, as is frequently alleged, but rather its individuative independence. An acceptance of these points will hopefully put an end to the prevalence of strawmen in the debate, and focus attention on meatier issues.     

ACTIONS,HABITS AND CONSTITUTION

In this paper I offer a critique of the view made popular by Davidson that rationalization is a species of causal explanation, and propose instead that in many cases the explanatory relation is constitutive. Given Davidson’s conception of rationalization, which allows that a huge range of states gathered under the heading ‘pro attitude’ could rationalize an action, I argue that whilst the causal thesis may have some merit for some such ‘attitudes’, it has none for others. The problematic ‘attitudes’ are those which can be attributed to the agent only on the basis of her history of doing a certain sort of thing. In other words, they are among the agent’s habits. I argue that such temporally extended states cannot be the causes of any present occurrence. Instead, I suggest we should think of the present action as partly constituting the state in question, and give a corresponding interpretation of the explanatory relation. Such explanations invite us to abandon a conception of agency narrowly based on psychology, in favour of an enriched one which takes an agent’s habits to partly constitute the agent.     

Supporting Integrity of Discrete Trial Teaching via Tiered Consultation: A Pilot Study

Empirically supported consultation procedures for supporting implementation of evidence-based interventions for Autism Spectrum Disorder (ASD), such as performance feedback, may be challenging to implement in public schools. Educators may find performance feedback aversive, and support personnel may find its directiveness incompatible with their professional roles. This pilot study extends recent advances in implementation science, by investigating the influence of tiered consultation on intervention integrity of Discrete Trial Teaching (DTT). A less intensive form of implementation support was examined for its feasibility and effectiveness. Collaborative Student Data Review (CSDR) includes discussion, general feedback, and modeling. Preliminary findings indicate that CSDR is a feasible and acceptable form of implementation support, and that it shows potential as a form of implementation support for DTT.