Crossover from bulk to surface diffusion in the fluctuations of step edges on Pt(111)

Using low-energy electron microscopy we explore the fluctuations of step edges on Pt(111) in the temperature range 1190?K<T<1520?K. Below 1400?K the relaxation times vary with wave vector q as q ³, and above 1400?K as q ², while the observed activation energy changes from 1.25 to 2.75?eV. A discussion shows that surface diffusion is responsible for the rates at low temperatures, and that bulk vacancy diffusion becomes dominant above 1400?K. We infer that a similar crossover must occur for steps on most metal surfaces. The step stiffness is determined as 175 ± 20?meV?nm^?1 at 1500?K.     

Psychoanalytic aspects of inpatient treatment

This paper looks at the experience of inpatient hospital treatment at the Cassel Hospital and how formal psychoanalytic psychotherapy, with its emphasis on the transference and the inner world, fits into that context and orientates itself to some of the realities of the setting. It outlines how psychotherapy and nursing can work to inform and enrich each other, and what is psychoanalytic about the overall work. A bridge of understanding is built using the patients' perceptions of, adjustment to and conflict about the inpatient setting, and the affective impact of the processes on patients and staff alike. Two clinical examples of severe child abuse family cases are given, the first of Munchhausen syndrome by proxy, the second in which a baby sibling had been killed. They show how in-depth psychoanalytic work with mother and child and individual psychotherapy of the child can be combined with psychotherapy of the parents and intensive work in the therapeutic community. Such a combination can contribute, even in cases of severe pathology, to the development of the relationship between mother and child and promote successful rehabilitation in the outside community.     

Imitation of hierarchical structure versus component details of complex actions by 3- and 5-year-olds

We investigated developmental changes in the level of information children incorporate into their imitation when a model executes complex, hierarchically organized actions. A total of 57 3-year-olds and 60 5-year-olds participated, watching video demonstrations of an “artificial fruit” box being opened through a complex series of nine different steps. Half of each sample observed the same nine steps performed through either of two different, hierarchically organized procedures, whereas half witnessed differing component action details. Children were found to imitate at both levels but were more likely to copy at the higher hierarchical level than at the level of specific action details. Fidelity to hierarchical organization, but not to the imitation of specific detail, increased with age. However, variation in imitativeness across children at one of these levels did not predict imitativeness at the other level.     

Motor maps, seizures, and behaviour

Atypically organised motor maps have been described in some people with epilepsy and we have modelled this in rats. Our goal is to more fully understand the mechanisms responsible for seizure-induced functional brain reorganisation and to reverse their effects. Here we present an overview of the relationship between neocortical motor maps, seizures, and interictal behaviour. To begin we summarise the observations of atypical motor maps with epilepsy and in animal models following experimentally induced seizures. Our novel experiments have established that motor map expansion is linked to a functional alteration of motor behaviour. Evidence for some of the putative brain mechanisms responsible for motor map size is discussed. Our successes reversing seizure-induced map expansion by two different methods are also briefly reviewed. Lastly, unanswered questions for possible future experimentation are posed.     

Stress Generation and Adolescent Depression: Contribution of Interpersonal Stress Responses

This research examined the proposal that ineffective responses to common interpersonal problems disrupt youths’ relationships, which, in turn, contributes to depression during adolescence. Youth (86 girls, 81 boys; M age = 12.41, SD = 1.19) and their primary female caregivers participated in a three-wave longitudinal study. Youth completed a measure assessing interpersonal stress responses; youth and caregivers completed semi-structured interviews assessing youths’ life stress and psychopathology. Consistent with the hypothesized model, ineffective stress responses (low levels of effortful engagement, high levels of involuntary engagement and disengagement) predicted the generation of subsequent interpersonal stress, which partially accounted for the association between stress responses and depression over time. Moreover, results revealed that self-generated interpersonal, but not noninterpersonal stress, predicted depression, and that this explanatory model was specific to the prediction of depression but not anxiety. This research builds on interpersonal stress generation models of depression, and highlights the importance of implementing depression-focused intervention programs that promote effective stress responses and adaptive interpersonal relationships during adolescence.     

‘To Whom Say You Your Pater Noster?’: Prayer on the Eve of the Scottish Reformation

In 1551, a resident English Dominican, Richard Marshall, sparked a fierce controversy in St Andrews, Scotland, by arguing in a sermon that the Lord’s Prayer, the ‘Our Father’, should be prayed to God only and not to the saints. According to John Foxe, the dispute led to much cursing, a regional synod, and one Franciscan fleeing the city in disgrace. The St Andrews quarrel was one of many controversies about prayer in sixteenth-century Europe. Why was prayer such a contentious topic? Scottish prayer controversies revealed a fundamental struggle between traditional and reformist views over the value of ritual in relating to God. Protestants like George Wishart, Catholic reformers like Marshall and Archbishop John Hamilton, and more radical ‘devotional humanists’ like the poet, Sir David Lindsay, proclaimed new understandings of prayer that undermined the structures of traditional devotion by pitting the personal and vernacular aspect of prayer against priestly Latin ritual.     

The development of the political philosophy of Merleau-Ponty

This article follows the development of Merleau-Ponty’s political philosophy from his 1947 text, Humanism and Terror, through a number of essays in the Adventures of the Dialectic, to the Preface to Signs published in 1959. It shows the process by which Merleau-Ponty escaped the “grip of marxism” as a philosophy of history. It notes the link between his philosophy of history and the concrete historical events of his times, particularly the Russian Revolution and its degeneration into Stalinism. It suggests a certain analogy between Merleau-Ponty’s reflection on the October Revolution and Kant’s reflection on the French Revolution. The notion of the universal class of the proletariat is the guiding thread in the analyses of both Merleau-Ponty’s proximity to marxism and the process by which he frees himself from its grip. We observe the role that this concept plays in Humanism and Terror and in the essays on Weber and Lukacs in the Adventure of the Dialectic where we eventually see its dissolution. It is argued that Merleau-Ponty arrives at a new conception of historical meaning which is neither totalizing or empiricist. The paper concludes by presenting an outline of the direction that his philosophy of history took after he extricated himself from marxism. This new philosophy took the form of a critical reflection on the role of the “notion of the hero” in 20th century political philosophy in general, particularly in Heidegger and Sartre.

The Factor Structure of Global Self-Esteem among Adolescents and Adults

The purpose of this study was to examine the factor structure of the Rosenberg Self-Esteem Scale (RSES; Rosenberg, 1965). Despite its frequent use, the factor structure of the RSES remains unclear. Confirmatory factor analysis (CFA) and the CFA approach to analyzing multitrait–multimethod data were used to evaluate eight competing models of the factor structure of the RSES. The models were evaluated within three diverse samples and two follow-up surveys. The results of this study indicate that the RSES is a unidimensional construct that is contaminated by a method effect primarily associated with negatively worked items. These results were found in both adolescents and adults. Moreover, the results found support for the hypothesis that the method effects diminish with increased verbal ability. The theoretical and methodological implications of these findings are discussed.