Norms of Intentionality: Norms that Don't Guide

More than ever, it is in vogue to argue that no norms either play a role in or directly follow from the theory of mental content. In this paper, I present an intuitive theory of intentionality (including a theory of mental content) on which norms are constitutive of the intentional properties of attitude and content in order to show that this trend is misguided. Although this theory of intentionality—the teleological theory of intentional representation—does involve a commitment to representational norms, these norms are not problematic in the way critics have suggested they would be. In particular, these norms do not guide thinking by motivating intentional agents to (intentionally) accord with them; as a result, no obvious vicious regress threatens the theory. In the final section of this paper, I argue that accepting this teleological theory of intentionality need not commit one to thinking that intentionality is the product of natural selection.

An in vitro investigation of endocrine disrupting effects of tricothecenes deoxynivalenol (DON), T-2, HT-2 toxins

Trichothecenes are a large family of chemically related mycotoxins. Deoxynivalenol (DON), T-2 and HT-2 toxins belong to this family and are produced by various species of Fusarium. The H295R steroidogenesis assay, regulation of steroidogenic gene expression and reporter gene assays (RGAs) for the detection of androgen, estrogen, progestagen and glucocorticoid (ant)agonist responses, have been used to assess the endocrine disrupting activity of DON, T-2 and HT-2 toxins.

H295R cells were used as a model for steroidogenesis and gene expression studies and exposed with either DON (0.1–1000 ng/ml), T-2 toxin (0.0005–5 ng/ml) or HT-2 toxin (0.005–50 ng/ml) for 48 h. We observed a reduction in hormone levels in media of exposed cells following radioimmunoassay. Cell viability was determined by four colorimetric assays and we observed reduced cell viability with increasing toxin concentrations partly explaining the significant reduction in hormone levels at the highest toxin concentration of all three trichothecenes.

Thirteen of the 16 steroidogenic genes analyzed by quantitative real time PCR (RT-qPCR) were significantly regulated (P < 0.05) by DON (100 ng/ml), T-2 toxin (0.5 ng/ml) and HT-2 toxin (5 ng/ml) compared to the control, with reference genes (B2M, ATP5B and ACTB). Whereas HMGR and CYP19 were down-regulated, CYP1A1 and CYP21 were up-regulated by all three trichothecenes. DON further up-regulated CYP17, HSD3B2, CYP11B2 and CYP11B1 and down-regulated NR5A1. T-2 toxin caused down-regulation of NR0B1 and NR5A1 whereas HT-2 toxin induced up-regulation of EPHX and HSD17B1 and down-regulation of CYP11A and CYP17. The expressions of MC2R, StAR and HSD17B4 genes were not significantly affected by any of the trichothecenes in the present study.

Although the results indicate that there is no evidence to suggest that DON, T-2 and HT-2 toxins directly interact with the steroid hormone receptors to cause endocrine disruption, the present findings indicate that exposure to DON, T-2 toxin and HT-2 toxin have effects on cell viability, steroidogenesis and alteration in gene expression indicating their potential as endocrine disruptors.

"they don't just disappear":Acknowledging death in the long-term care setting

Objective: The purpose of this study was to describe the value of a formal room blessing ritual held within a long-term care facility, from the perspectives of staff, residents, and family members. Method: A qualitative research study involving interviews with staff, residents, and family members was conducted to examine the perceived value of a room blessing ritual. Results: Twenty-four room blessing attendees participated in the study (nine staff, eight residents, and seven family members). Attendees felt that the room blessing provided an opportunity to formally acknowledge the death of the resident and their grief; the majority felt that this was a positive experience and that it provided an element of closure. Staff members and residents expressed their appreciation for the opportunity to connect with family members of the deceased to express their condolences during the ritual. Participants also identified the inclusivity of the ritual (i.e., an open invitation to all staff, residents, and family members) as a positive aspect that served as a reminder that others shared in their grief. Staff members felt that blessing the room for the new resident was an important component of the ritual, helping to bridge the gap between mourning and welcoming a new person. Staff, residents, and family members felt that the room blessing positively reflected the mission and values of the facility. The most highly valued aspect of the ritual for all attendees was the sharing of stories about the deceased to celebrate that person's life. Significance of results: Long-term care facilities need to recognize that formal supports to manage the bereavement needs of staff and residents, such as a room blessing ritual, should be incorporated into their model for managing end-of-life care, given the relationship between the emotional health of staff and the quality of care provided for residents. © 2012 Cambridge University Press.