Unveiling the Colours of Cellulose Nitrate Black and White Film-based Negatives in Colonial Photography

ABSTRACT

Aiming at contributing to the preservation of black and white (B&W) film-based negatives held by Portuguese archives, four photographic collections from the first half of the twentieth century were selected for study. During the macro assessment of the collections the preservation condition and hues found in photographic negatives from the Elmano Cunha e Costa (ECC) were noticed, distinguishing this collection from the remaining ones. Additional attention was given considering that the ECC collection was formed in a colonial context in the 1930s, while the others were formed on the Portugal mainland. The ECC collection results from an ethnographic survey of Angolan tribes recorded with B&W film-based negatives. In this collection, sets of negatives with pink, lemon yellow, greenish, orange brownish, and red brownish hues were found. To identify the origin of such hues, the image layer was analysed by microscale energy-dispersive X-ray fluorescence (μ EDXRF) and scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX). Additionally, to assess the base decay and its effect on the formation of hues, the plastic supports were characterized by Fourier transform infrared microscopy (μ FTIR). To complement the assessment of the film-base decay, pH was measured by using combined microelectrodes. The identification of mercury, iodine, chromium, and iron by μ EDXRF allowed correlation of the hues found in the negatives with chemical corrective treatments performed to improve the image quality. SEM-EDX confirmed those results and proved that the elements found were in the photographic emulsion layer. The results obtained are relevant since the hues identified may now be used as markers to indicate the technical work performed on colonial photography. Additionally, the visual and molecular assessment of the negatives’ supports (good to fair condition) allow proposing that the original storage conditions may have had a beneficial contribution to their present condition.     

Sprinting analysis of elite soccer players during European Champions League and UEFA Cup matches

It has been suggested that assessment of high-intensity activities during a match is a valid measure of physical performance in elite soccer. Recently, sprinting activities have been analysed in more depth. The aim of this study was to develop a detailed analysis of the sprinting activities of different playing positions during European Champions League and UEFA Cup competitions. Altogether, 717 elite outfield soccer players were evaluated throughout 2002-2006 using ProZone? (Leeds, UK). Sprinting (explosive and leading) was analysed for each playing position. To compare positional differences, a Kruskal-Wallis analysis was performed. Differences were found among positions for total number of sprints and total sprint distance covered: wide midfielders > (attackers = wide defenders) > central midfielders > central defenders (P < 0.001), as well as for explosive sprints: (wide midfielders = attackers = wide defenders) > central defenders, wide midfielders > central midfielders > central defenders and attackers = wide defenders = central midfielders (P < 0.001), and leading sprints: wide midfielders > (attackers = wide defenders) > central midfielders > central defenders (P < 0.001). For each group, there were no differences in ratio of explosive to leading sprints. Wide midfielders performed a higher number of sprints in all five distance categories than all other positions. This study showed that sprinting characteristics are influenced by position. Wide midfielders have to complete additional high-intensity activities during training sessions compared with the other positions to achieve the performance level required during the match.     

From American city to Japanese village: a cross-cultural investigation of implicit race attitudes

This study examined the development of implicit race attitudes in American and Japanese children and adults. Implicit ingroup bias was present early in both populations, and remained stable at each age tested (age 6, 10, and adult). Similarity in magnitude and developmental course across these 2 populations suggests that implicit intergroup bias is an early-emerging and fundamental aspect of human social cognition. However, implicit race attitudes toward favored outgroups are more positive in older than in younger participants, indicating that "cultural prestige" enjoyed by a group moderates implicit bias as greater knowledge of group status is acquired. These results demonstrate (a) the ready presence, (b) early cultural invariance, and (c) subsequent cultural moderation of implicit attitudes toward own and other groups.     

The Significance of the Learning Society for Women and Men with Learning Difficulties

This article draws on work undertaken as part of the Economic and Social Research Council's Learning Society Programme. The project from which data are drawn, entitled 'The Meaning of the Learning Society for Adults with Learning Difficulties', focused on lifelong learning opportunities available to people with learning difficulties and experiences of these services. The article begins by examining theories of late modernity, their use by feminist and disability studies theorists and their relationship to ideas of a learning society. Subsequently, using case study material, it is argued that the identities of people with learning difficulties are not chosen freely from a range of options but are socially ascribed. The status of learning difficulties is used as a dominant category to justify deprivation of basic political and economic rights. In addition, the lives of people with learning difficulties are structured by gender and class, and these intersect with the category of learning difficulties. For both women and men, the advantages of middle-class social and economic capital are overridden by the negative category of learning difficulties. In relation to gender, men with learning difficulties are more likely to receive post-school training, but in inappropriate areas of the labour market. Their domestic needs are also likely to be attended to by others, but in the absence of employment, they find themselves without any valued social role. Women with learning difficulties are also likely to be excluded from the labour market, but are more likely to be involved in reciprocal, albeit limited, social relationships. It is concluded that postmodernist theories are inadequate to describe the structuring of the lives of people with learning difficulties.     

Acquisition of the Novel Name–Nameless Category (N3C) Principle

Toddlers' acquisition of the Novel Name–Nameless Category (N3C) principle was examined to investigate the developmental lexical principles framework and the applicability of the specificity hypothesis to relations involving lexical principles. In Study 1, we assessed the ability of 32 children between the ages of 16 and 20 months to use the N3C principle (operationally defined as the ability to fast map). As predicted, only some of the children could fast map. This finding provided evidence for a crucial tenet of the developmental lexical principles framewor: Some lexical principles are not available at the start of language acquisition. Children who had acquired the N3C principle also had significantly larger vocabularies and were significantly more likely to demonstrate 2-category exhaustive sorting abilities than children who had not acquired the principle. The 2 groups of children did not differ in either age or object permanence abilities. The 16 children who could not fast map were followed longitudinally until they attained a vocabulary spurt; at that time, their ability to fast map was retested (Study 2). Results provided a longitudinal replication of the findings of Study 1. Implications of these findings for both the developmental lexical principles framework and the specificity hypothesis are discussed.     

Resilience factors in the victims of sexual abuse: state of affairs

OBJECTIVE: The aim of this literature review is to examine factors leading to the recovery of child sexual abuse survivors. METHOD: This paper provides a definition of resilience and presents the individual and environmental protective factors. A methodological examination of the studies is carried through. RESULTS: Researchers have documented that 20% to 44% of adult who were sexually abused during their childhood show no apparent signs of negative outcome. However, very few studies as been interested in resilient women and their protective mechanisms. Recent research on protective factors reveal that searching for support, disclosing the abuse and giving a meaning to the abuse are all adaptative cognitive strategies. Furthermore, the perception of benefits and having an external attributional style are both related to less psychological distress. Social support, in general and after the revelation, also appears as a determinant of resilience. However, avoidance, even if victims find it very useful, proves to be a non-adaptative strategy, which may lead to be a catalyst to victims' symptomatology. Definitional problems and the lack of longitudinal studies limit the conclusions that can be drawn. CONCLUSION: The rare studies involving resilient victims show that social support as well as certain cognitive coping strategies may lead to recovery. However the extent of their contribution remains unknown.     

Approaching Camphill: from the Boundary

The Camphil communities for children and adults in need of special care are widely known of, but little known about; often lauded, sometimes condemned but rarely understood. Stephen Baron, lecturer in sociolgy and social policy, Stirling University, and Dr Douglas Haldane, psychotherapist and consultant in St Andrews, seek to remedy this in a modest way by giving an evaluative, but non-statistical, account of the work of the communities over the past 50 years. They also consider Camphill's future role in community care and also in special educational provision, in the context of the 1988 Education Reform Act.