164 research outputs found

    Who's here? Who's queer?

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    Welcome to the 2021 special edition of Intersectional Perspectives: Identity, Culture, and Society, entitled 'Who's Here? Who's Queer?’. In asking these two questions we are asking who feels they belong in LGBTQI+ spaces and who claims the language of queer. 1 This idea of belonging, and its related concept community, underpins the articles in this special issue. Theoretically we draw on the work of Vanessa May, who states that 'an individual's sense of belonging is affected by collectively negotiated understandings of who 'we' are and what 'we' stand for, and who gets excluded as the 'other''. As May highlights the notion of belonging contains within it the shadow of those that do not belong. A singular understanding of inclusion and exclusion of LGBTQI+ people does not fully account for greater nuance in relational elements of these experiences. Experiences of inclusion and exclusion are necessarily interpersonal, relational, and context-dependent. As such one's inclusion or exclusion depends both on an individual's embodied state, and the relations between individuals, contexts and other agents. Individuals' experiences of being included or excluded vary across settings and times, and a binary concept of inclusion or exclusion does not allow for this nuance

    Variation in the timing of enamel formation in modern human deciduous canines

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    OBJECTIVES: Deciduous canines are now used increasingly in archaeological and forensic studies to establish the time of birth and as a retrospective source of trace elements incorporated into enamel before and after birth. However, data on the variability of deciduous enamel formation times are scarce. Our objectives were to use daily incremental markings to estimate daily secretion rates, the timing of prenatal, postnatal and total enamel formation and any changes in enamel coverage or prism and stria orientation that occur during enamel formation. MATERIALS AND METHODS: Longitudinal ground sections of 81 deciduous canines were studied with transmitted light microscopy. High-resolution digital images were imported from an Olympus VS-120 virtual slide scanning system into a geographic information system (ArcGIS, ESRI USA) for quantitative and statistical analyses of linear, angular and area measurements of buccal enamel. RESULTS: Daily rates of enamel secretion close to the EDJ were faster than in permanent enamel (3.23 μm/day, SD = 0.54). Prism and stria angles subtended to the EDJ both increased through crown formation. Enamel coverage was low in the cusp and cervix but maximal ∼150 days after birth. The mean prenatal enamel formation time was 118 days (range 60-150, SD, 29.2, n = 24). The overall mean postnatal enamel formation time was 319 days (range 210-420, SD 50.6, n = 67). CONCLUSIONS: Daily enamel secretion rates compared well with previous studies of deciduous enamel, however, enamel extension rates in deciduous cuspal enamel were notably lower. The variability of both prenatal and postnatal deciduous enamel formation times was greater than previously reported

    Shape, size, and maturity trajectories of the human ilium

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    Morphological traits of the ilium have consistently been more successful for juvenile sex determination than have techniques applied to other skeletal elements, however relatively little is known about the ontogeny and maturation of size and shape dimorphism in the ilium. We use a geometric morphometric approach to quantitatively separate the ontogeny of size and shape of the ilium, and analyze interpopulation differences in the onset, rate and patterning of sexual dimorphism. We captured the shape of three traits for a total of 191 ilia from Lisbon (Portugal) and London (UK) samples of known age and sex (0-17 years). Our results indicate that a) there is a clear dissociation between the ontogeny of size and shape in males and females, b) the ontogeny of size and shape are each defined by nonlinear trajectories that differ between the sexes, c) there are interpopulation differences in ontogenetic shape trajectories, which point to population-specific patterning in the attainment of sexual dimorphism, and d) the rate of shape maturation and size maturation is typically higher for females than males. Male and female shape differences in the ilium are brought about by trajectory divergence. Differences in size and shape maturation between the sexes suggest that maturity may confound our ability to discriminate between the sexes by introducing variation not accounted for in age-based groupings. The accuracy of sex determination methods using the ilium may be improved by the use of different traits for particular age groups, to capture the ontogenetic development of shape in both sexes

    Fatigue in fibromyalgia: a conceptual model informed by patient interviews

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    Abstract Background Fatigue is increasingly recognized as an important symptom in fibromyalgia (FM). Unknown however is how fatigue is experienced by individuals in the context of FM. We conducted qualitative research in order to better understand aspects of fatigue that might be unique to FM as well as the impact it has on patients' lives. The data obtained informed the development of a conceptual model of fatigue in FM. Methods Open-ended interviews were conducted with 40 individuals with FM (US [n = 20], Germany [n = 10] and France [n = 10]). Transcripts were analyzed using qualitative methods based upon grounded theory to identify key themes and concepts. Results Participants were mostly female (70%) with a mean age of 48.7 years (range: 25-79). Thirty-one individuals (i.e., 77.5%) spontaneously described experiencing tiredness/lack of energy/fatigue due to FM. Participants discussed FM fatigue as being more severe, constant/persistent and unpredictable than normal tiredness. The conceptual model depicts the key elements of fatigue in FM from a patient perspective. This includes: an overwhelming feeling of tiredness (n = 17, 42.5%), not relieved by resting/sleeping (n = 15, 37.5%), not proportional to effort exerted (n = 25, 62.5%), associated with a feeling of weakness/heaviness (n = 20, 50%), interferes with motivation (n = 22, 55%), interferes with desired activities (n = 27, 67.5%), prolongs tasks (n = 15, 37.5%), and makes it difficult to concentrate (n = 21, 52.5%), think clearly (n = 12, 30%) or remember things (n = 9, 22.5%). Conclusion The majority of individuals with FM who participated in this study experience fatigue and describe it as more severe than normal tiredness.http://deepblue.lib.umich.edu/bitstream/2027.42/112483/1/12891_2010_Article_962.pd

    Effects of maternal, gestational, and perinatal variables on neonatal line width observed in a modern UK birth cohort

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    OBJECTIVES: The objective of this study was to explore potential relationships between neonatal line (NNL) width and early life history variables such as maternal health, gestation, the birth process, and perinatal health. MATERIALS AND METHODS: Histological thin sections of deciduous canines were studied from 71 children from the Avon Longitudinal Study of Parents and Children (ALSPAC). The width of the NNL was measured in three locations on the tooth crown using spatial mapping techniques (ArcGIS) from digital images from an Olympus VS-120 microscope. Life history variables were collected prospectively through a combination of clinical observations and questionnaires. RESULTS: Infants born late term or post term had narrower neonatal lines than those born prematurely or at full term. Infants born in Autumn (September to November) had narrower NNLs than those born at other times of year. NNLs in infants born to mothers with hypertension were wider than those without. Infants resuscitated at birth or born to obese mothers had narrower NNLs than those that were not. There was no association between NNL width and either the type or duration of delivery. DISCUSSION: The NNL in enamel is an irregular accentuated line, but the factors underlying its formation and width remain unclear. In contrast to some previous studies, we found no association between wider NNLs and long or difficult births. Instead, we found that the width of the neonatal line NNL varied in relation to parameters that reflected the prenatal environment and length of gestation

    Adolescent literacies for critical social and community engagement

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    This thesis aims to describe the literacy practices of adolescents who are engaged actively and critically with their communities. In particular it is concerned to make explicit the semiotic resources adolescents deploy to persuade their multiple audiences to effect social change and to build solidarity within the social spaces they inhabit. The study aims to interpret these semiotic resources within their wider social, socio-political and cultural contexts and to respond to concerns by literacy educators and wider social and political theorists to celebrate and make visible the processes and practices of adolescent active citizenship. Data for the study include texts produced by six adolescents involved in two social movements during 2004 and 2005. These texts represent a range of modalities including speeches and radio interviews, print newspaper commentaries, published essays and online weblogs and magazines. The social contexts of texts were analysed using theories from systemic functional linguistics and new literacy studies. The linguistic construal of persuasion was examined using genre theory and the discourse semantic theories of negotiation and appraisal. These theories were enriched with complementary perspectives from new rhetorical studies. The study found that adolescents draw on a wide range of semiotic resources to persuade multiple audiences in the civic domain. The activists deployed rhetorical strategies valued by mainstream politicians, social commentators and activists as well as those valued within the academic and personal domains of their lives. The choice of semiotic resources was found to be motivated by the complex roles, relationships and social positioning of the young activists in relation to their audiences as well as by the constraints and freedoms of the modalities in which the texts were situated. The intertextual positioning of the texts within larger social semiotic affiliations and sociopolitical environments was also found to have a considerable impact on the reading of the texts

    Trauma-focused cognitive behaviour therapy versus treatment as usual for post traumatic stress disorder (PTSD) in young children aged 3 to 8 years: study protocol for a randomised controlled trial.

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    BACKGROUND: Following horrific or life-threatening events approximately 10 to 15% of young children develop post traumatic stress disorder (PTSD). The symptoms of this disorder are distressing - nightmares, flashbacks, anger outbursts and disturbed play. These symptoms cause major disruption to a child's functioning and, if left untreated, can persist for many years. As yet, there are no established empirically-validated treatments for PTSD in young children. Trauma-focused cognitive behaviour therapy (TF-CBT) is a psychological intervention that is effective in treating the disorder in older children (8 to 12 years), adolescents and adults. This study examines TF-CBT adapted for children aged between 3 and 8 years. METHODS/DESIGN: This protocol describes a two-arm exploratory randomised controlled trial comparing TF-CBT to treatment as usual (TAU) in children aged 3 to 8 years with a principal diagnosis of PTSD following a single-event discrete trauma. Using a half-crossover design, 44 participants will be randomly allocated to receive the intervention or to receive TAU. Those allocated to TAU will be offered TF-CBT at the end of the 'treatment' period (approximately 12 weeks) if still indicated. The primary outcome is PTSD diagnosis according to DSM-5 criteria for children 6 years and younger at post-treatment. Secondary outcomes include effects on co-morbid diagnoses and changes in emotion and trauma symptoms at each of the follow-up points (post-treatment, 3-months, 12-months). Additionally, broader efficacy will be considered with regard to treatment feasibility, acceptability and service utilisation. The key targets of the intervention are trauma memory, the interpretation of the meaning of the event, and the management of symptoms. DISCUSSION: This is the first European trial to examine the efficacy of TF-CBT in alleviating PTSD in very young children. As well as providing much-needed data on the utility of the intervention, this exploratory trial will also allow us to gather important information about the feasibility of delivering the treatment in UK National Health Service (NHS) settings, and its acceptability to the children and their families. This study will highlight aspects of the intervention that need improvement or modification in preparation for a full-scale evaluation in a larger sample. TRIAL REGISTRATION: ISRCTN35018680 , registered on 18 November 2013

    Short-term iodine dynamics in soil solution

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    Assessing the reactions of iodine (I) in soil is critical to evaluate radioiodine exposure and understand soil-to-crop transfer rates. Our mechanistic understanding has been constrained by method limitations in assessing the dynamic interactions of iodine between soil solution and soil solid phase over short periods (hours). We use microdialysis to passively extract soil solution spiked with radioiodine (129I– and 129IO3–) to monitor short-term (≤40 h) in situ fixation and speciation changes. We observed greater instantaneous adsorption of 129IO3– compared to 129I– in all soils and the complete reduction of 129IO3– to 129I– within 5 h of addition. Loss of 129I from solution was extremely rapid; the average half-lives of 129I– and 129IO3– in soil solution were 4.06 and 10.03 h, respectively. We detected the presence of soluble organically bound iodine (org-129I) with a low molecular weight (MW) range (0.5–5 kDa) in all soils and a slower (20–40 h) time-dependent formation of larger MW org-I compounds (12–18 kDa) in some samples. This study highlights the very short window of immediate availability in which I from rainfall or irrigation remains in soil solution and available to crops, thus presenting significant challenges to phytofortification strategies in soil-based production systems
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