720 research outputs found
The nature, origin and distribution of chloride in the Lower B subzone evaporites of Little Narrows, Victoria County, Nova Scotia
No full textThe stratigraphy and some petrology of a section of the Windsor Group was studied in considerable detail in a quarter square mile area centered on the Magazine quarry, Little Narrows, Victoria County, N. S. The section lies between the Lower Red Siltstone and the Middle Red Siltstone of
Moore and Lewis (1969). It correlates with Bell's (1929) B subzone of the type area at Windsor. The relationship between the chloride and sulphate is considered as well as the relationship between the sulphate.
For the Magazine quarry, maps recording chloride in the boreholes drilled for blasting have shown that the sulphate (gypsum or anhydrite) contains trace quantities of chloride in an irregular pattern. An attempt is made to clarify this pattern and the origin of it. Halite (derived from the chloride content) generally makes up less than 0.5 percent of a sample by weight. A sodium sulphate mineral may also be present, however.
The evaporite sequence was deposited in a marine envir onment below wave base. Anh ydrite is the oldest sulphate type present but it is n ot known what the original sulphate was. The finely crystalline gypsum was recrystallized from the very finely crystalline gypsum, which formed from the anhydrite. The original sulphate was fine to coarsely laminated to a large degree. The mosaic, the distorted mosaic, the random carbonate and the other textures containing carbonate probably were derived from a laminated texture.
The chloride is mostly found in secondary features such as disseminated crystals, cracks and selenite stringers. Occasionally it occurs along the bedding plane with the carbonate laminae in the anhydrite. The chloride occurs most commonly with the anhydrite and least with the finely crystalline gypsum. It more commonly occurs with the random carbonate than with the mosaic texture.
A tentative conclusion is that the high chloride~ content is unrelated to the amount of carbonate the sulphate contains, if the carbonate content is less than 20 percent.
The chloride and selenite stringers have a very low correlation coefficient when they are treated as independant variable.
The irregular distribution of the high chloride rock is only partly explained by the irregular distribution of anhydrite and the recrystallization pattern in the gypsum.
A high chloride content occurs at all stratigraphic levels of sulphate occurrence except between the Hazeldale and Cain's Mountain limestones and a five foot interval above the. latter.
The conclusions are in general agreement with those of a preliminary study by the author (1974) except for the stratigraphic levels of the halite
The Effect of Music Therapy on the Maladpative Emotionally Regulative Behaviors of Adults with Developmental Disabilities
No full textABSTRACT The purpose of this study was to examine the effectiveness of individualized music therapy protocols in decreasing the duration of instances of elevated levels of maladaptive emotionally regulative behaviors in adults with developmental disabilities. The participants were four adults with developmental disabilities, recommended for the study based on the presence of severe and/or frequent instances of maladaptive emotionally regulative behaviors. ABAB reversal design was used to examine the effectiveness of the usual staff techniques (A) and the individualized music therapy protocols (B) in decreasing the duration of instances of maladaptive emotionally regulative behaviors. The independent variables were the following two conditions: interacting with each participant while he or she was exhibiting the targeted maladaptive emotionally regulative behaviors at a rate per minute that exceeded the participant's usual rate per minute, using (A) non-music interventions recommended by staff, or (B) individualized music therapy protocols. The dependent variable was the time that elapsed from the onset to the conclusion of each instance of elevated levels of maladaptive emotionally regulative behaviors. Results from the four case studies indicated that music therapy protocols can be used to decrease the duration of instances of elevated levels of maladaptive emotionally regulative behaviors in adults with developmental disabilities, and that music therapy protocols can decrease these behaviors more quickly than the usual staff techniques in most cases. Three out of four participants responded better to the music therapy protocols than the usual staff techniques. The final participant responded to music therapy protocols and staff techniques exactly the same in terms of average duration of instances of elevated levels of maladaptive emotionally regulative behaviors
Discovery of novel Vibrio cholerae VSP-II genomic islands using comparative genomic analysis
No full textThis report describes Vibrio seventh pandemic island II (VSP-II) and three novel variants revealed by comparative genomics of 23 Vibrio cholerae strains and their presence among a large and diverse collection of V. cholerae isolates. Three VSP-II variants were reported previously and our results demonstrate the presence of three novel VSP-II in clinical and environmental V. cholerae marked by major deletions and genetic rearrangements. A new VSP-II cluster was found in the seventh pandemic V. cholerae O1 El Tor strain CIRS101, which is dominant (95%) among the recent (2004-2007) seven pandemic V. cholerae O1 El Tor isolates from two endemic sites, but was not found in older strains from the same region. Two other variants were found in V. cholerae TMA21 and RC385, two environmental strains from coastal Brazil and the Chesapeake Bay, respectively, the latter being prevalent among environmental V. cholerae non-O1/non-O139 and Vibrio mimicus. The results of this study indicate that the VSP-II island has undergone significant rearrangement through a complex evolutionary pathway in V. cholerae. Interestingly, one of the new VSP-II revealed the presence of 'old' and 'new' V. cholerae O1 El Tor pandemic clones circulating in some of the areas where cholera is endemic.Y
Genome sequence of hybrid Vibrio cholerae O1 MJ-1236, B-33, and CIRS101 and comparative genomics with V. cholerae
No full textThe genomes of Vibrio cholerae O1 Matlab variant MJ-1236, Mozambique O1 El Tor variant B33, and altered O1 El Tor CIRS101 were sequenced. All three strains were found to belong to the phylocore group 1 clade of V. cholerae, which includes the 7th-pandemic O1 El Tor and serogroup O139 isolates, despite displaying certain characteristics of the classical biotype. All three strains were found to harbor a hybrid variant of CTX Phi and an integrative conjugative element (ICE), leading to their establishment as successful clinical clones and the displacement of prototypical O1 El Tor. The absence of strain-and group-specific genomic islands, some of which appear to be prophages and phage-like elements, seems to be the most likely factor in the recent establishment of dominance of V. cholerae CIRS101 over the other two hybrid strains.Y
An investigation of the critical judgments of undergraduate music students in response to recorded music performances
No full textThe problem was to determine the extent to which critical judgments of undergraduate music students conform to the judgments of recognized music critics. Published reviews identified 177 critically recognized inferior and superior recorded performances of Classical and Romantic compositions of instrumental, keyboard, or choral/vocal music from which 100 excerpts were selected. Faculty validation of 52 of these excerpts provided 30 excerpts for a pilot study to explore testing formats and conditions within which critical judgments of students could be obtained. For the main phase of the research, subjects (N = 204) from the University of Illinois at Urbana-Champaign and three other state universities using the Critical Judgments Performance Evaluation (CJPE) provided overall ratings of performance quality of 28 excerpts, their confidence in their ratings, and judgments on 13 performance characteristics.Data analysis determined the relationship between the subject's musical/academic variables and his ability to make critical judgments. Statistical techniques included calculation of frequencies and percentages, chi-square tests, t tests, ANOVA, and multiple comparisons post-hoc Tukey-B and Scheffe tests. Subjects agreed more often than they disagreed with the judgment of critics. Agreement was greater on the superior choral/vocal and on the inferior keyboard. Keyboard majors agreed with critics more often than instrumental or choral/vocal majors. Keyboard students judged the overall performance quality of keyboard excerpts more accurately than nonkeyboard students. Keyboard students also agreed with the judgments of critics to a greater extent on inferior instrumental and inferior choral/vocal excerpts.ACT scores, high school rank, academic division, the extent of music instruction, and grade point average were not factors in agreement-disagreement with the judgments of critics. The use of musical scores while judging performance quality also was not a factor. Neither did the style or kind of music affect student judgments. Most students were able to discriminate between superior and inferior excerpts as determined by critics in all but one case. Keyboard majors were more confident in their overall ratings than subjects who majored in instrumental or choral/vocal music. The formation of critical judgments is not directly related to the objectives of undergraduate music programs but this ability may be a function of musical and/or academic experience.Made available in DSpace on 2011-05-07T14:08:26Z (GMT). No. of bitstreams: 2
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