The potential buffering role of self-efficacy and pain acceptance against invalidation in rheumatic diseases.

A substantial amount of people with a rheumatic disease perceive invalidation consisting of lack of understanding and discounting (negative social responses). To get insight into the potential buffering role of self-efficacy and pain acceptance against invalidation, this cross-sectional study examined associations between these variables. Spanish speaking people (N = 1153, 91% female, mean age 45 ± 11 years) with one or multiple rheumatic diseases completed online the Illness Invalidation Inventory, the Chronic Pain Acceptance Questionnaire, and the Chronic Disease Self-Efficacy Scale. Higher self-efficacy (t = - 4.80, p = < 0.001) and pain acceptance (t = - 7.99, p = < 0.001) were additively associated with discounting. Higher self-efficacy (t = - 5.41, p = < 0.001) and pain acceptance (t = - 5.71, p = < 0.001) were also additively associated with lack of understanding. The combined occurrence of high self-efficacy and high acceptance was associated most clearly with lower lack of understanding (interaction: t = - 2.12, p = 0.034). The findings suggest the usefulness of examining whether interventions aimed at increasing self-efficacy and pain acceptance can help people with rheumatic diseases for whom invalidation is a considerable burden.

The transferability of diatoms to clothing and the methods appropriate for their collection and analysis in forensic geoscience.

Forensic geoscience is concerned with the analysis of geological materials in order to compare and exclude environmental samples from a common source, or to identify an unknown provenance in a criminal investigation. Diatom analysis is currently an underused technique within the forensic geoscience approach, which has the potential to provide an independent ecological assessment of trace evidence. This study presents empirical data to provide a preliminary evidence base in order to be able to understand the nature of diatom transfers to items of clothing, and the collection of transferred diatom trace evidence from a range of environments under experimental conditions. Three diatom extraction methods were tested on clothing that had been in contact with soil and water sites: rinsing in water (RW), rinsing in ethanol (RE), and submersion in H2O2 solution (H). Scanning electron microscopy (S.E.M.) analysis was undertaken in order to examine the degree of diatom retention on treated clothing samples. The total diatom yield and species richness data was recorded from each experimental sample in order to compare the efficacy of each method in collecting a representative sample for analysis. Similarity was explored using correspondence analysis. The results highlight the efficiency of H2O2 submersion in consistently extracting high diatom counts with representative species from clothing exposed to both aquatic and terrestrial sites. This is corroborated by S.E.M. analysis. This paper provides an important empirical evidence base for both establishing that diatoms do indeed transfer to clothing under forensic conditions in a range of environments, and in identifying that H2O2 extraction is the most efficient technique for the optimal collection of comparative samples. There is therefore potentially great value in collecting and analysing diatom components of geoforensic samples in order to aid in forensic investigation.

Research ethics, science policy, and four contexts for the stem cell debate.

There are plainly conscientious differences of opinion among scientists, politicians, and the public in respect of both the ethics of embryonic stem cell research and the more general question of the role of public policy in setting parameters for what is legal and what is funded in the biosciences. Although professional discussion of embryonic stem cell research is not hampered by the often misleading oversimplifications of the press, it remains true that the wide range of ethical options is rarely explored. These varied positions arise from a series of at least six logically distinct policy options, which we may summarize in these terms: (a) All use of human embryos for research is wrong. (b) Excess in vitro embryos may be used, but others should not be created for the purpose. (c) In vitro embryos, but not clonal embryos, may be created with the intent of using them for research. (d) Clonal embryos, but not in vitro embryos, may be created with the intent of using them for research. (e) Only certain excess embryos destroyed before a certain date should be used. (f) Only certain excess embryos created before a certain date should be used. Moreover, in any policy permitting research use of the embryo, two further sets of issues are raised. First is the question of consent. Second is the question of time limits. As advancements in biotechnology shape the possibilities of the twenty-first century and hold out both promise and threat to the human future, it is crucial that we develop a national and global conversation that both encourages science and its potential and takes wider social responsibility for the purposes for which science is engaged.

Nanotechnology and the human future: policy, ethics, and risk.

The extraordinary potential of nanoscale research and development has yet to be matched in the growth of public awareness of the technology and its implications for society. Groups have emerged that are highly critical of the technology, and others that see it as the key to the radical transformation of human nature itself. Between these extremes, the direction of federal policy has been to encourage the technology while respecting the integrity of the human condition. Experience with genetically modified foods in Europe, where they are widely known as "Frankenfoods," suggests that wide public acceptance of a new technology is crucial to its economic success. A focus on the ethical, legal, and societal implications of the technology, and especially respect for human nature, is therefore prudent. But it is not enough to fund research on societal questions; respect for the human condition must frame the development of nanotechnology. This article draws upon our experiences with biotechnology to better understand the issues we face as developments in nanotechnology begin to impact society.