566 research outputs found
A life course approach to health literacy: The role of gender, educational attainment, and lifetime cognitive capability
OBJECTIVE: Social inequalities in health are believed to arise in part because individuals make use of social and economic resources in order to improve survival. In recent years, health literacy has received increased attention as a factor that can help explain differences in health outcomes. However, examination of life course predictors of health literacy has been limited.
METHODS: Life course data from the Wisconsin Longitudinal Study 1957-2011 were used to examine predictors of health literacy in old age (N=2,122), using the Newest Vital Sign. Generalized structural equation modeling was used to model pathways to health literacy.
RESULTS: Predictors of health literacy included educational attainment, and adolescent cognitive and non-cognitive skills, and, in men, rate of cognitive decline from middle to later life.
DISCUSSION: Numerous studies have documented health literacy issues among older adults, and recommendations have been made for ways to improve health literacy for this population. This study reports on risk factors across the life course that are associated with health literacy later in life, identifying possible intervention targets to reduce risk of poor health as people age. Our results suggest that a range of life course factors, beginning in early life, predict health literacy. Further research studying health literacy over the life course is warrante
Nominal Logic with Equations Only
Many formal systems, particularly in computer science, may be captured by
equations modulated by side conditions asserting the "freshness of names";
these can be reasoned about with Nominal Equational Logic (NEL). Like most
logics of this sort NEL employs this notion of freshness as a first class
logical connective. However, this can become inconvenient when attempting to
translate results from standard equational logic to the nominal setting. This
paper presents proof rules for a logic whose only connectives are equations,
which we call Nominal Equation-only Logic (NEoL). We prove that NEoL is just as
expressive as NEL. We then give a simple description of equality in the empty
NEoL-theory, then extend that result to describe freshness in the empty
NEL-theory.Comment: In Proceedings LFMTP 2011, arXiv:1110.668
An international evaluation of cognitive reserve and memory changes in early old age in ten European countries
BACKGROUND: Cognitive reserve was postulated to explain individual differences in susceptibility to ageing,
offering apparent protection to those with higher education. We investigated the association between education and change in memory in early old age.
METHODS: Immediate and delayed memory scores from over 10,000 individuals aged 65 years and older, from 10 countries of the Survey of Health, Ageing and Retirement in Europe (SHARE), were modeled as a function of time in the study over an 8-year period, fitting independent latent growth models (LGM). Education was used as a marker of cognitive reserve and evaluated in associations with memory performance and rate of change, while accounting for income, general health, smoking, body mass index (BMI), sex and baseline age.
RESULTS: In most countries, more educated individuals performed better on both memory tests at baseline, compared to those less educated. However, education was not protective against faster decline, except for in Spain for both immediate and delayed recall (0.007 (SE=0.003) &
0.006 (SE=0.002), and Switzerland for immediate recall 0.006 (SE=0.003). Interestingly, highly educated Italian respondents had slightly faster declines in immediate recall (-0.006 (SE=0.003)).
CONCLUSIONS: We found weak evidence of a protective effect of education on memory change in most European samples, although there was a positive association with memory performance at individuals' baseline assessment
âGenetic and clinical findings in an ethnically diverse retinitis pigmentosa cohort associated with pathogenic variants in EYSâ
Background and objectives:
The EYS gene is an important cause of autosomal recessive retinitis pigmentosa (arRP). The objective of this study is to report on novel pathogenic variants in EYS and the range of associated phenotypes.
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Subjects and methods:
This retrospective case series at a tertiary referral centre for inherited retinal diseases describes patients with an IRD and at least two variants in the EYS gene. Phenotyping included multimodal retinal imaging; genotyping molecular genetic analysis using targeted next generation sequencing. Sanger sequencing verification and analysis of novel variants using in silico approaches to determine their predicted pathogenicity.
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Results:
Eight male and four female patients were included. Age at onset ranged from 11 to 62 years with variable symptom presentation; ten patients showed classical features of retinitis pigmentosa, albeit with great variation in disease severity and extent. Two patients had atypical phenotypes: one with localised inferior sector pigmentation and a mild RP phenotype with changes predominantly at the posterior pole. Eighteen variants in EYS were identified, located across the gene: six were novel. Eight variants were missense, two altered splicing, one was a whole exon duplication and the remainder were predicted to result in premature truncation of the protein.
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Conclusion:
The marked variability in severity and age of onset in most patients in this ethnically diverse cohort adds to growing evidence that that mild phenotypes are associated with EYS variants. Similarly, the two atypical cases add to the growing diversity of EYS disease as do the six novel pathogenic variants described
Educational inequalities in aging-related declines in fluid cognition and the onset of cognitive pathology
AbstractBackgroundEducation has been robustly associated with cognitive reserve and dementia, but not with the rate of cognitive aging, resulting in some confusion about the mechanisms of cognitive aging. This study uses longitudinal data to differentiate between trajectories indicative of healthy versus pathologic cognitive aging.MethodsParticipants included 9401 Health and Retirement Study respondents aged â„55Â years who completed cognitive testing regularly over 17.3Â years until most recently in 2012. Individual-specific random change-point modeling was used to identify age of incident pathologic decline; acceleration is interpreted as indicating likely onset of pathologic decline when it is significant and negative.ResultsThese methods detect incident dementia diagnoses with specificity/sensitivity of 89.3%/44.3%, 5.6Â years before diagnosis. Each year of education was associated with 0.09 (95% confidence interval [CI], 0.087â0.096; PÂ <Â .001) standard deviation higher baseline cognition and delayed onset of cognitive pathology (hazard ratio, 0.98; 95% CI, 0.96â0.99; PÂ =Â .006).ConclusionsLongitudinal random change-point modeling was able to reliably identify incident dementia. Accounting for incident cognitive pathology, we find that education predicts cognitive capability and delayed onset pathologic declines
On site 2 : Bruce Armstrong, Paul Boston, Alison Clouston, Susan Norrie
On site 2 : Bruce Armstrong, Paul Boston, Alison Clouston, Susan Norrie
Catalogue of exhibition held at the Centre for the Arts Gallery, Oct. 17-31, 1986.
Works by Bruce Armstrong, Paul Boston, Alison Clouston, Susan Norri
Two Asymmetries between Clitic Left and Clitic Right Dislocation in Bulgarian
The paper discusses some subtle points of the syntax of clitic left dislocation and clitic right dislocation in Bulgarian
A scoping review on occupational science research in European contexts
Background
A survey showed European occupational scientists cover a broad range in occupational science (OS) research, however, no contemporary overviews of European OS research exists, and current research may provide valuable information for OS and occupational therapy.
Aim
The aim was to provide an overview of contemporary European OS research.
Materials and method
A scoping review was performed, including studies conducted in Europe and published in the British Journal of Occupational Therapy (BJOT), the Scandinavian Journal of Occupational Therapy (SJOT) or the Journal of Occupational Science (JOS) between 2015 and 2020. The journals were systematically searched, and quality assessment and thematic analysis were undertaken.
Results
Findings from 93 articles identified many studies from the Nordic countries. Most studies applied qualitative research methods. Theoretical concepts from OS were used in data generating and discussions. A wide range of demographics, and living conditions were explored. Recent articles took a reflexive stance on the positionality of the researcher/s.
Conclusions
This review highlights the diversity of OS research, suggesting a solid theoretical knowledge base within European OS research.
Significance
The results contribute to further development and maturation of the discipline of OS in Europe and internationally
Intensity modulated radiation therapy dose painting for localized prostate cancer using(11)C-choline positron emission tomography scans
PURPOSE: To demonstrate the technical feasibility of intensity modulated radiation therapy (IMRT) dose painting usingÂčÂčC-choline positron emission tomography PET scans in patients with localized prostate cancer. METHODS AND MATERIALS: This was an RT planning study of 8 patients with prostate cancer who had ÂčÂčC-choline PET scans prior to radical prostatectomy. Two contours were semiautomatically generated on the basis of the PET scans for each patient: 60% and 70% of the maximum standardized uptake values (SUV(60%) and SUV(70%)). Three IMRT plans were generated for each patient: PLAN(78), which consisted of whole-prostate radiation therapy to 78 Gy; PLAN(78-90), which consisted of whole-prostate RT to 78 Gy, a boost to the SUV(60%) to 84 Gy, and a further boost to the SUV(70%) to 90 Gy; and PLAN(72-90), which consisted of whole-prostate RT to 72 Gy, a boost to the SUV(60%) to 84 Gy, and a further boost to the SUV(70%) to 90 Gy. The feasibility of these plans was judged by their ability to reach prescription doses while adhering to published dose constraints. Tumor control probabilities based on PET scan-defined volumes (TCP(PET)) and on prostatectomy-defined volumes (TCP(path)), and rectal normal tissue complication probabilities (NTCP) were compared between the plans. RESULTS: All plans for all patients reached prescription doses while adhering to dose constraints. TCP(PET) values for PLAN(78), PLAN(78-90), and PLAN(72-90) were 65%, 97%, and 96%, respectively. TCP(path) values were 71%, 97%, and 89%, respectively. Both PLAN(78-90) and PLAN(72-90) had significantly higher TCP(PET) (P=.002 and .001) and TCP(path) (P<.001 and .014) values than PLAN(78). PLAN(78-90) and PLAN(72-90) were not significantly different in terms of TCP(PET) or TCP(path). There were no significant differences in rectal NTCPs between the 3 plans. CONCLUSIONS: IMRT dose painting for localized prostate cancer using (11)C-choline PET scans is technically feasible. Dose painting results in higher TCPs without higher NTCPs.Joe H. Chang, Daryl Lim Joon, Sze Ting Lee, Sylvia J. Gong, Nigel J. Anderson, Andrew M. Scott, Ian D. Davis, David Clouston, Damien Bolton, Christopher S. Hamilton, Vincent Kho
Surgeonâs and Caregiversâ Appraisals of Primary Cleft Lip Treatment with and without Nasoalveolar Molding: A Prospective Multicenter Pilot Study
Despite the increasing use of nasoalveolar molding (NAM) in early cleft treatment, questions remain about its effectiveness. This study examines clinician and caregiver appraisals of primary cleft lip and nasal reconstruction with and without NAM in a non-randomized, prospective multicenter study
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