PubMed Health⌕ Search

Biomedical subjects

Beth Wilson

Publications and source records attributed to Beth Wilson.

12 recordsLinked to original sources

Social anxiety in late adolescence: the importance of early childhood language impairment.

Social phobia is a common, highly comorbid, poorly understood and relatively understudied condition. The origins of social phobia share familial and biological features common with those of other anxiety disorders, but seldom have precursors of the fear of social communication been examined as a possible pathway to social phobia. Here we examine the role of early childhood language impairment as an antecedent to social phobia in late adolescence. Participants in a prospective longitudinal community study identified as having language impairment at age 5 and matched controls were followed up at age 19. Compared to normal language controls, individuals with a history of early language impairment had 2.7 times the odds of having a social phobia by age 19. Results suggest that early language impairment represents a distinct pathway to late adolescent social phobia.

Adolescent↗

"There's no point in complaining, nothing changes": rural disaffection with complaints as an improvement method.

OBJECTIVE: To validate earlier findings that lack of access to health services is the most likely issue of complaint by rural consumers, and that lack of knowledge about how to make effective complaints and scepticism that responses to complaints bring about service improvement account for the under-representation of complaints from rural consumers. DESIGN: Unaddressed reply-paid mail survey to 100% of households in small communities, and 50%, 20% or 10% in progressively larger communities. SETTING: Eight communities in the Loddon-Mallee region of Victoria. PARTICIPANTS: 983 householders most responsible for the health care of household members, responding to a mailed questionnaire. MAIN OUTCOME MEASURES: Issues of complaints actually made; issues of unsatisfactory situations when a complaint was not made; reasons for not complaining; to whom complaints are made; and plans for dealing with any future complaint. RESULTS: Earlier findings were confirmed. Lack of access to health services was the most important issue, indicated by 54.8% of those who had made a complaint, and 72% of those who wanted to but did not. The most common reason given for not complaining was that it was futile to do so. Lack of knowledge of how to make effective complaints which might contribute to the quality assurance cycle was evident. CONCLUSIONS: Rural consumers' disaffection with health complaints as a means to quality improvement poses a significant barrier to consumer engagement in quality assurance processes. Provider practices may need to change to regain community confidence in quality improvement processes.

Adolescent↗

Nurses respond to healthcare restructuring: the transformation of the Massachusetts Nurses Association.

The most recent period of Massachusetts healthcare system reorganization began in the early 1980s. In part, this has been a response to soaring healthcare costs, countering them with diminished reimbursements. To decrease labor costs and survive in an increasingly competitive and market-driven healthcare environment, hospitals downsized and laid off nursing staff. Patient care and safety has concomitantly suffered. These efforts severely challenged nurses' status. Radicalized rank and file members of the Massachusetts Nurses Association mobilized against the association leadership's weak efforts to protect nurses' social and economic interests and the deteriorating quality of care. They transformed an association whose main focus was supporting nursing's professional image to one which became an activist labor union of professional workers. The history of this often contentious transformation is presented here within the context of these healthcare system changes. The MNA's successes and pending challenges within the Massachusetts healthcare system are also discussed.

Hospital Restructuring↗

Tunable DNA photocleavage by an acridine-imidazole conjugate.

We report the synthesis and characterization of photonucleases N,N'-bis[2-[bis(1H-imidazol-4-ylmethyl)amino]ethyl]-3,6-acridinediamine (7) and N-[2-[bis(1H-imidazol-4-ylmethyl)amino]ethyl]-3,6-acridinediamine (10), consisting of a central 3,6-acridinediamine chromophore attached to 4 and 2 metal-coordinating imidazole rings, respectively. In DNA reactions employing 16 metal salts, photocleavage of pUC19 plasmid is markedly enhanced when compound 7 is irradiated in the presence of either Hg(II), Fe(III), Cd(II), Zn(II), V(V), or Pb(II) (low-intensity visible light, pH 7.0, 22 degrees C, 8-50 microM 7). We also show that DNA photocleavage by 7 can be modulated by modifying buffer type and pH. Evidence of metal complex formation is provided by EDTA experiments and by NMR and electrospray ionization mass spectral data. Sodium azide, sodium benzoate, superoxide dismutase, and catalase indicate the involvement of type I and II photochemical processes in the metal-assisted DNA photocleavage reactions. Thermal melting studies show that compound 7 increases the Tm of calf thymus DNA by 10 +/- 1 degrees C at pH 7.0 and that the Tm is further increased upon the addition of either Hg(II), Cd(II), Zn(II), or Pb(II). In the case of Fe(III) and V(V), a colorimetric assay demonstrates that compound 7 sensitizes one electron photoreduction of these metals to Fe(II) and V(IV), likely accelerating the production of type I reactive oxygen species. Our data collectively indicate that buffer, pH, Hg(II), Fe(III), Cd(II), Zn(II), V(V), Pb(II), and light can be used to "tune" DNA cleavage by compound 7 under physiologically relevant conditions. The 3,6-acridinediamine acridine orange has demonstrated great promise for use as a photosensitizer in photodynamic therapy. In view of the distribution of iron in living cells, compound 7 and other metal-binding acridine-based photonucleases should be expected to demonstrate excellent photodynamic action in vivo.

Aminoacridines↗

Do health and medical workforce shortages explain the lower rate of rural consumers' complaints to Victoria's Health Services Commissioner?

OBJECTIVE: To identify which explanations account for lower rural rates of complaint about health services--(i) fear of consequences where there is little choice of alternative provider; (ii) a higher complaint threshold for rural consumers; (iii) lack of access to complaint mechanisms; or (iv) reduced access to services about which to complain. DESIGN: Ecological study incorporating consumer complaint, population and workforce distribution data sources. SETTING: All health care providers practising in Victoria. PARTICIPANTS: De-identified records of all closed consumer complaints made to the Health Services Commissioner, Victoria, between March 1988 and April 2001 by Victorian residents (13 856 records). MAIN OUTCOME MEASURES: Differences in the percentage of under-representation in complaint rates in total and for each of four categories of health services providers for different size communities. RESULTS: No consistent relationship was observed between community size and either degree of under-representation of complaints against any category of provider, or the proportion of serious or substantial complaints. Rural under-representation was highest (41%) for dentists, the provider category with the lowest proportion working in rural areas (17%), and lowest (18%) for hospitals, with the highest representation in rural areas (28% of beds). More rural complaints were about access issues (10.7% rural and 8.4% metropolitan). CONCLUSIONS: Reduced opportunity to use health services due to rural health and medical workforce shortages was the best-supported explanation for the lower rural complaint rate. Workforce shortages impact on the quality of rural health services and on residents' opportunities to improve their health status.

Health Services Accessibility↗

A birth vision.

Explore the source record for details and available documents.

Female↗

Early language impairment and young adult delinquent and aggressive behavior.

Clinic and forensic studies have reported high rates of language impairments in conduct disordered and incarcerated youth. In community samples followed to early adolescence, speech and language impairments have been linked to attention deficits and internalizing problems, rather than conduct problems, delinquency, or aggression. This study examines the young adult antisocial outcomes of speech or language impaired children. Language impaired boys had higher levels of parent-rated delinquency symptoms by age 19 than boys without language impairment, controlled for verbal IQ and for demographic and family variables. Language impaired boys did not differ from controls in self-reported delinquency or aggression symptoms on a standardized checklist; however, language impaired boys reported higher rates of arrests and convictions than controls. Language impairment was not related to aggression or delinquency in girls. We examine alternate models of the interrelationships between language, academics, and behavior, at ages 5, 12, and 19.

Adult↗

Unusually persistent complainants.

BACKGROUND: Querulous paranoia may have disappeared from the psychiatric literature, but is it flourishing in modern complaints organisations and the courts? AIMS: To investigate the unusually persistent complainants who lay waste to their own lives and place inordinate demands and stress on complaints organisations. METHOD: Complaints officers completed questionnaires on both unusually persistent complainants and matched controls. RESULTS: Persistent complainants (distinguished by their pursuit of vindication and retribution) consumed time and resources and resorted to both direct and veiled threats. Attempts to distinguish these people from a control group on the basis of the manner in which their claims were initially managed failed. CONCLUSIONS: Persistent complainants' pursuit of vindication and retribution fits badly with complaints systems established to deliver reparation and compensation. These complainants damaged the financial and social fabric of their own lives and frightened those dealing with their claims. The study suggests methods of early detection and alternative management strategies.

Agonistic Behavior↗

Why misinformation is more likely to be recognised over time: A source monitoring account.

Although memory for actual events tends to be forgotten over time, memory for misinformation tends to be retrieved at a stable rate over long delays or at a rate greater than that found immediately after encoding. To examine whether source monitoring errors contribute to this phenomenon, two experiments investigated subjects' memory for the source of misinformation at different retention intervals. Subjects viewed a slide presentation, read a narrative containing misinformation, and, either 10 minutes or 1 week later, completed a recognition test about details seen in the slides and about the source of these details. After the longer retention interval in both experiments, participants were more likely to agree that they had seen misleading information and were also more likely to incorrectly associate the misinformation with the slide event. Theoretical implications of these findings are considered.

Adult↗

Young adult academic outcomes in a longitudinal sample of early identified language impaired and control children.

BACKGROUND: The long-term academic consequences of childhood language impairment are both theoretically and clinically important. An unbiased appraisal of these outcomes, however, requires carefully designed, longitudinal research. METHOD: A group of children first identified as having speech and/or language impairment in a community-based, longitudinal study at 5 years of age and matched controls were re-examined during young adulthood (age 19). A comprehensive battery of speech and language, cognitive and achievement tests, psychiatric interviews, and questionnaires were completed by subjects, their parents and teachers. RESULTS: While children with early speech problems showed only a few academic differences from controls in young adulthood, early language impaired (LI) young adults lagged significantly behind controls in all areas of academic achievement, even after controlling for intelligence. Further, rates of learning disabilities (LD) were significantly higher in the LI group than both the controls and community base rates. Concurrent individual difference variables, including phonological awareness, naming speed for digits, non-verbal IQ, verbal working memory, and executive function, all contributed unique variance to achievement in specific areas. CONCLUSION: Early LI rather than speech impairment is clearly associated with continued academic difficulties into adulthood. These results speak to the need for intensive, early intervention for LI youngsters.

Adolescent↗

Copper-activated DNA photocleavage by a pyridine-linked bis-acridine intercalator.

We report the synthesis of new photonuclease 4 consisting of two acridine rings joined by a pyridine-based copper binding linker. We have shown that photocleavage of plasmid DNA is markedly enhanced when this ligand is irradiated in the presence of copper(II) (419 nm, 22 degrees C, pH 7.0). Viscometric data indicate that 4 binds to DNA by monofunctional intercalation, and equilibrium dialysis provides an estimated binding constant of 1.13 x 105 M-1 for its association with calf thymus DNA. In competition dialysis experiments, 4 exhibits preferential binding to GC-rich DNA sequences. When Cu(II) is added at a ligand to metal ratio of 1:1, electrospray ionization mass spectrometry demonstrates that compound 4 undergoes complex formation, while thermal melting studies show a 10 degrees C increase in the Tm of calf thymus DNA. Groove binding and intercalation are suggested by viscometric data. Finally, colorimetric and scavenger experiments indicate that the generation of Cu(I), H2O2, and superoxide contributes to the production of DNA frank strand breaks by the Cu(II) complex of 4. Whereas the strand breaks are distributed in a relatively uniform fashion over the four DNA bases, subsequent piperidine treatment of the photolysis reactions shows that alkaline labile lesions occur predominantly at guanine.

Acridines↗