Who am I? An identity crisis Identity in the new museologies and the role of the museum professional

Whilst the title of this essay suggests more than one “new museology”, it was rather a licence poétique to emphasize the two major theoretical movements that have evolved in the second half of the 20th Century[1]. As a result of the place(s)/contexts where they originated, and for clarity purposes, they have been labelled in this essay as the “Latin new museology” and the “Anglo-Saxon new museology”; however they both identify themselves by just the name of “New Museology”. Even though they both shared similar ideas on participation and inclusion, the language barriers were probably the cause for many ideas not to be fully shared by both groups. The “Latin New museology” was the outcome of a specific context that started in the 1960s (de Varine 1996); being a product of the “Second Museum Revolution”(1970s)[2], it provided new perceptions of heritage, such as “common heritage”. In 1972 ICOM organized the Santiago Round Table, which advocated for museums to engage with the communities they serve, assigning them a role of “problem solvers” within the community (Primo 1999:66). These ideas lead to the concept of the Integral Museum. The Quebec Declaration in 1984 declared that a museum’s aim should be community development and not only “the preservation of past civilisations’ material artefacts”, followed by the Oaxtepec Declaration that claimed for the relationship between territory-heritage-community to be indissoluble (Primo 1999: 69). Finally, in 1992, the Caracas Declaration argued for the museum to “take the responsibility as a social manager reflecting the community’s interests”(Primo 1999: 71). [1] There have been at least three different applications of the term ( Peter van Mensch cited in Mason: 23) [2] According to Santos Primo, this Second Museum Revolution was the result of the Santiago Round Table in Chile, 1972, and furthered by the 1st New Museology International Workshop (Quebec, 1984), Oaxtepec Meeting (Mexico, 1984) and the Caracas Meeting (Venezuela, 1992) (Santos Primo : 63-64)

Who am I?

This paper examines the self-image and satisfaction of cochlear implant users.

Extraction behavior of the synergistic system 2,6-bis-(benzoxazolyl)-4-dodecyloxylpyridine and 2-bromodecanoic acid using Am and Eu as radioactive tracers

In this study, the extraction properties of a synergistic system consisting of 2,6-bis-(benzoxazolyl)-4-dodecyloxylpyridine (BODO) and 2-bromodecanoic acid (HA) in tert-butyl benzene (TBB) have been investigated as a function of ionic strength by varying the nitrate ion and perchlorate ion concentrations. The influence of the hydrogen ion concentration has also been investigated. Distribution ratios between 0.03-12 and 0.003-0.8 have been found for Am(III) and Eu(HI), respectively, but there were no attempts to maximize these values. It has been shown that the distribution ratios decrease with increasing amounts of ClO4-, NO3-, and H+. The mechanisms, however, by which the decrease occurs, are different. In the case of increasing perchlorate ion concentration, the decrease in extraction is linear in a log-log plot of the distribution ratio vs. the ionic strength, while in the nitrate case the complexation between nitrate and Am or Eu increases at high nitrate ion concentrations and thereby decreases the distribution ratio in a non-linearway. The decrease in extraction could be caused by changes in activity coefficients that can be explained with specific ion interaction theory (SIT); shielding of the metal ions, and by nitrate complexation with Am and Eu as competing mechanism at high ionic strengths. The separation factor between Am and Eu reaches a maximum at similar to1 M nitrate ion concentration. Thereafter the values decrease with increasing nitrate ion concentrations.

Solvent extraction of Am(III) and Eu(III) from nitrate solution using synergistic mixtures of n-tridentate heterocycles and chlorinated cobalt dicarbollide

The separation by solvent extraction of Am-241(III) from Eu-152(III), in 1 M NaNO3 weakly acidic (pH 4) aqueous solutions, into dilute (ca. 10(-2) M) solutions of triazinylbipyridine derivatives (diethylhemi-BTP or di(benzyloxyphenyl) hemi-BTP) and chlorinated cobalt dicarbollide (COSAN) in 1-octanol or nitrobenzene has been studied. The N-tridentate heterocyclic ligands, which are selective for Am(III) over Eu(III), secured efficient separation of the two metal ions, while COSAN, strongly hydrophobic and fully dissociated in polar diluents, enhanced the extraction of the metal ions by ion-pair formation. Molecular interactions between the two co-extractants, observed at higher concentrations, led to the precipitation of their 1: 1 molecular adduct. In spite of that, efficient separations of Am and Eu ions were attained, with high separation factors, SFAm/Eu of 40 and even 60, provided the concentration of hemi-BTP was significantly greater than that of COSAN. Excess COSAN concentrations caused an antagonistic effect, decreasing both the distribution ratio of the metal ions and their separation factor.

Influence of diluent alkyl substitution on the extraction of Am(III) and Eu(III) by a 6,6'-bis(1,2,4-triazinyl)-2,2'-bipyridine ligand dissolved in alkylated cyclohexanone diluents

Several alkylated cyclohexanones were investigated as potential diluents for the selective extraction of Am(III) and Eu(III) from nitric acid solutions by the CyMe4-BTBP ligand. No significant extraction of either of the metal ions was observed for these diluents themselves. In the extractions from 1 M HNO3, 3-methylcyclohexanone and 4-methylcyclohexanone gave comparable results to cyclohexanone whereas in the extractions from 4 M HNO3, 2-methylcyclohexanone, 3-methylcyclohexanone and 4-methylcyclohexanone all gave superior results. For the monomethylated diluents, DAm and SFAm/Eu decreased in the order of alkyl substitution 2 > 4 ~ 3. However, alkyl substitution of cyclohexanone significantly slows down the extraction kinetics compared to cyclohexanone, and the position of alkyl substitution was found to play an important role in the solvents properties. 3-Methylcyclohexanone was identified as the most promising of the diluents.