286 resultados para Leap year.


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This cross-sectional study assessed relationships between plasma homocysteine, 'thermolabile' methylenetetrahydrofolatereductase (MTHFR) genotype, B vitamin status and measures of renal function in elderly (70-89 years) and nonagenarian (90+ years) subjects, with the hypothesis that octo/nonagenarian subjects who remain healthy into old age as defined by 'Senieur' status might show reduced genetic or environmental risk factors usually associated with hyperhomocysteinaemia. Plasma homocysteine was 9.1 micromol/l (geometric mean [GM]) for all elderly subjects. Intriguingly, homocysteine was significantly lower in 90+ (GM; 8.2 micromol/l) compared to 70-89-year-old subjects (GM; 9.8 micromol/l) despite significantly lower glomerular filtration rate (GFR) and serum B12 in nonagenarian subjects and comparable MTHFR thermolabile (TT) genotype frequency, folate and B6 status to 70-89-year-olds. For all elderly subjects, the odds ratio and 95% confidence intervals for plasma homocysteine being in the highest versus lowest quartile was 4.27 (2.04-8.92) for age 90 years, 3.4 (1.5-7.8) for serum folate 10.7nmol/l, 3.0 (0.9-10.2) for creatinine >140 compared

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The relationship between parental background and children's educational outcomes has been a dominant theme within the sociology of education. There has been an on-going debate as to the relative merits of explanations which focus on the role of socio-cultural reproduction and those which focus on rational choice. However, many empirical studies within the social stratification tradition fail to allow for children's own agency in shaping the relationship between social background and schooling outcomes. This paper draws on the first wave of a large-scale longitudinal study of over 8,000 nine-year-old children in Ireland, which combines information from parents, school principals, teachers and children themselves. Both social class and parental education are found to have significant effects on reading and mathematics test scores among nine year olds. These effects are partly mediated by home-based educational resources and activities, parents' educational expectations for their child, and parents' formal involvement in the school. More importantly, children's own engagement with, and attitudes to, school significantly influence their academic performance. The influence of children's own attitudes and actions can thus reinforce or mitigate the effect of social background factors. The analysis therefore provides a bridge between the large body of research on the intergenerational transmission of inequality and the emerging research and policy literature on children's rights.

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In response to claims that the quality (and in particular linearity) of children's mental representation of number acts as a constraint on number development, we carried out a longitudinal assessment of the relationships between number line estimation, counting, and mathematical abilities. Ninety-nine 5-year-olds were tested on 4 occasions at 3 monthly intervals. Correlations between the 3 types of ability were evident, but while the quality of children's estimations changed over time and performance on the mathematical tasks improved over the same period, changes in one were not associated with changes in the other. In contrast to the earlier claims that the linearity of number representation is potentially a unique contributor to children's mathematical development, the data suggest that this variable is not significantly privileged in its impact over and above simple procedural number skills. We propose that both early arithmetic success and estimating skill are bound closely to developments in counting ability.

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A software system, recently developed by the authors for the efficient capturing, editing, and delivery of audio-visual web lectures, was used to create a series of lectures for a first-year undergraduate course in Dynamics. These web lectures were developed to serve as an extra study resource for students attending lectures and not as a replacement. A questionnaire was produced to obtain feedback from students. The overall response was very favorable and numerous requests were made for other lecturers to adopt this technology. Despite the students' approval of this added resource, there was no significant improvement in overall examination performance

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'Not belonging' is becoming a prevalent theme within accounts of the first-year student experience at university. In this study the notion of not belonging is extended by assuming a more active role for the idea of liminality in a student's transition into the university environments of academic and student life. In doing so, the article suggests that the transition between one place (home) and another (university) can result in an 'in-between-ness' - a betwixt space. Through an interpretative methodology, the study explores how students begin to move from this betwixt space into feeling like fully-fledged members of university life. It is concluded that there is a wide range of turning points associated with the students' betwixt transition, which shapes, alters or indeed accentuates the ways in which they make meaningful connections with university life. Moreover, transitional turning point experiences reveal a cast of characters and symbolic objects; capture contrasting motivations and evolving relationships; display multiple trajectories of interpersonal tensions and conflicts; highlight discontinuities as well as continuities; and together, simultaneously liberate and constrain the students' transition into university life.

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Internalizing behaviors in children between 4 and 5 years of age who had been prenatally exposed to psychotropic medications were investigated. The authors had previously reported the effects of prenatal medication exposure in this same cohort when they were newborns and infants at 3 and 8 months of age.

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To assess the general health and activity levels of 4- and 5-year-old children after intervention for congenital cardiac disease.

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Background:Little is known about the attitudes of healthcare professional students' perceived competence and confidence in treating those with dementia who are at the end of life.Aim:To explore the attitudes of final year medical, nursing and pharmacy students towards people with dementia and to evaluate their perceived competence and confidence dealing with biomedical and psychosocial issues within the context of palliative care provision to patients with dementia.Design:Cross-sectional survey using a questionnaire.Setting/participants:Final-year students in each profession from Queen's University Belfast (Northern Ireland) and the University of Iowa (USA) were recruited.Method:Three versions of an online questionnaire (containing the Attitudes to Dementia Questionnaire and a series of questions on end-of-life care in dementia) were distributed.Results:A total of 368 responses were received (response rate 42.3%). All respondents reported positive attitudes towards people with dementia. US nursing students reported significantly more positive attitudes than the medical students of United States and Northern Ireland. Medical students were more likely to report low confidence in discussing non-medical aspects of dying, whereas nursing students were most likely to feel prepared and confident to do this. Medical and nursing students reported low confidence with aspects of medication-related care; however, data from the pharmacy samples of Northern Ireland and United States suggested that these students felt confident in advising other healthcare professionals on medication-related issues.Conclusions:While healthcare students hold positive attitudes towards people with dementia, some clinical tasks remain challenging and further basic training may be of benefit.

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Objective: This retrospective audit was undertaken to explore the nature of referrals made by the paediatric CF team to the Clinical Psychologist over a period of 10 years. The aim of the audit was to identify patterns or trends related to difficulties referred by the team.
Methods: A database consisting of all referrals received over a ten year period from 2001-2010 was created. A coding template was then created by KR and AC, which allowed for the categorisation of referrals into three main themes: Mood disturbance; CF related events; and non-CF related events. The same coding template was used to categorise referrals to the adult CF service. Descriptive statistics were used to interpret the data.
Results: Over the ten year period, 106 young people with CF were referred to psychology, representing 266 referrals. On average, a referral was made every two weeks. The most common reason for referral was for CF related events (i.e. adherence, living everyday life with CF). Referrals were found to increase with age. Both genders were equally likely to be referred, with females being re-referred most frequently, indicating increased psychological morbidity. The majority of referrals (79%) were repeat referrals, indicating that psychology input is focused upon a small number of young people but over a period of time. In a typical year (09-10), only 16% of all young people with CF were able to access psychology services. Conclusion: This audit identified patterns related to inequality of access, gender differences, and the identification of common concerns across age groups. The audit also highlighted areas where early intervention and training efforts could be targeted.

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Objectives: A retrospective audit was conducted into Clinical Psychology referrals made by the adult cystic fibrosis (CF) team over a ten year period from 2001-2010. The aim of the audit was to examine the psychological difficulties referred to Clinical Psychology and identify any trends.
Methods: A database of all referrals received over a ten year period was created. A coding template was created by KR and AC which allowed for the categorisation of referrals into three main themes: Mood disturbance, CF related events and non-CF related events. The same coding template was used to categorise referrals to the children’s CF service. Descriptive statistics were used to interpret the data.
Results: In 2009/10, 11% of the adult CF population in Northern Ireland were referred to Clinical Psychology. In the past 10 years there were 200 referrals and 105 adults who accessed Clinical Psychology services. The majority of referrals (67%) were re-referrals (range 2-7). More females were referred and they were also more likely to be referred repeatedly The main reason for referral was anxiety. Depression, adherence and end of life/transplant issues also accounted for a large proportion of referrals. A small proportion of referrals were due to non CF related events. There were age and gender differences in the reasons for referral.
Conclusion: A minority of CF patients attending the regional unit were referred to Clinical Psychology. Those who accessed the services appear to be at increased risk of psychological morbidity as re-referral rates are high. The gender difference in referral and re-referral rates may reflect a difference in psychological morbidity or males not accessing services.