User interface development and software environments : the Chiron-1 system

User interface development systems for software environments have to cope with the broad, extensible and dynamic character of such environments, must support internal and external integration, and should enable various software development strategies. The Chiron-1 system adapts and extends key ideas from current research in user interface development systems to address the particular demands of software environments. Important Chiron-1 concepts are: separation of concerns, dynamism, and open architecture. We discuss the requirements on such user interface development systems, present the Chiron-1 architecture and a scenario of its usage, detail the concepts it embodies, and report on its design and prototype implementation

Correspondence to Elizabeth ( Bessie ) McCaw Boggs Taylor, December 11, 1901 - February 5, 1904

Correspondence to Elizabeth ( Bessie ) McCaw Boggs Taylor, December 11, 1901 - February 5, 1904. Box 2, folder 6.https://digitalcommons.wofford.edu/littlejohnboggs/1016/thumbnail.jp

Comparisons of Speech Anxiety in Basic Public Speaking Courses: Are Intensive or Traditional Semester Courses Better?

Students of public speaking are often asked if a basic public speaking course helped them deal with their fear of public speaking. Comparisons of anxiety levels between students enrolled in traditional 15-week semester courses and those enrolled in intensive courses has received little attention. The purpose of this exploratory, quasi-experimental study was to determine whether students enrolled in intensive public speaking courses reported higher levels of communication apprehension, i.e., speech anxiety. Participants were 722 undergraduate students who completed the Personal Report of Public Speaking Anxiety instrument. The findings indicated that students enrolled in intensive public speaking courses had significant moderate communication apprehension scores compared to students enrolled in 15-week semester courses. It is argued that the study indicates that there are factors that should be explored in further research on intensive public speaking courses

Australian Rattus

130 p. : ill., maps ; 27 cm.Includes bibliographical references (p. 124-130)."The native Australian Rattus are represented by five species and 14 subspecies. The progenitor of these native Rattus appears to be an ancestral form of R. lutreolus which gave rise to two major lines. One line represents the forest species, R. fuscipes and R. leucopus, and of these, R. fuscipes appears to have given rise to R. leucopus through a R. f. coracius-like ancestor. The other major line is composed of the grassland species, R. sordidus and R. tunneyi. The link between these two is postulated as being through the two subspecies R. t. culmorum-R. s. sordidus. Rattus tunneyi tunneyi is the most distant subspecies from the R. lutreolus-type progenitor along this line, and R. leucopus cooktownensis is the most remote along the line of forest forms. Rattus exulans subspecies, which occurs within the political boundaries of Australia probably as a result of human biochore dispersal, is included in this study chiefly because it has been allied with native Rattus on occasion in previous investigations. We recognize four subspecies of Rattus fuscipes: R. f. fuscipes (synonyms = R. f. mondraineus and R. f. glauerti), R. f. greyii (synonyms = R. murrayi, R. greyii ravus, R. greyii peccatus, and R. greyii pelori), R. f. assimilis, and R. f. coracius (synonym = R. manicatus); two subspecies of Rattus leucopus: R. l. leucopus (synonym = R. l. mcilwraithi) and R. l. cooktownensis; three subspecies of Rattus lutreolus: R. l. lutreolus (synonyms = R. vellerosus, R. l. cambricus, and R. l. imbil), R. l. velutinus (synonym = ?Mus tasmaniensis), and R. l. lacus; three subspecies of Rattus sordidus: R. s. sordidus (synonyms = R. conatus and R. youngi), R. s. villosissimus (synonym = R. villosissimus profusus), and R. s. colletti; and two subspecies of R. tunneyi: R. t. tunneyi (synonyms = Mus woodwardi, R. melvilleus, and R. tunneyi dispar) and R. t. culmoram (synonyms = R. culmorum vallesius, R. culmorum austrinus, and R. culmorum apex)"--P. 5

Systematic re-evaluation of Rattus lacus (Rodentia, Muridae)

14 p. ; 24 cm.Includes bibliographical references (p. 12-14)

Recursive partitioning models for linkage in COGA data

We have developed a recursive-partitioning (RP) algorithm for identifying phenotype and covariate groupings that interact with the evidence for linkage. This data-mining approach for detecting gene × environment interactions uses genotype and covariate data on affected relative pairs to find evidence for linkage heterogeneity across covariate-defined subgroups. We adapted a likelihood-ratio based test of linkage parameterized with relative risks to a recursive partitioning framework, including a cross-validation based deviance measurement for choosing optimal tree size and a bootstrap sampling procedure for choosing robust tree structure. ALDX2 category 5 individuals were considered affected, categories 1 and 3 unaffected, and all others unknown. We sampled non-overlapping affected relative pairs from each family; therefore, we used 144 affected pairs in the RP model. Twenty pair-level covariates were defined from smoking status, maximum drinks, ethnicity, sex, and age at onset. Using the all-pairs score in GENEHUNTER, the nonparametric linkage tests showed no regions with suggestive linkage evidence. However, using the RP model, several suggestive regions were found on chromosomes 2, 4, 6, 14, and 20, with detection of associated covariates such as sex and age at onset

The Texture of Surficial Sediments in Central Long Island Sound off Milford, Connecticut.

The purpose of this study was to determine the grain-size distributions and associated statistical parameters of the surficial sediment samples from central Long Island Sound off Milford, Connecticut. These grain-size data, which help to ground-truth a pre-existent sidescan sonar survey (Poppe and others, 1995a; Twichell and others, in press), will eventually be used to describe the sedimentary processes active in this portion of central Long Island Sound. Other potential uses for these textural data include benthic biologic studies that evaluate faunal distributions and relate them to habitats (Zajac and others, 1995), and geochemical studies involving the distribution, transport and deposition of pollutants (Moffett and others, 1994)

Fungal community assembly in drought-stressed sorghum shows stochasticity, selection, and universal ecological dynamics.

Community assembly of crop-associated fungi is thought to be strongly influenced by deterministic selection exerted by the plant host, rather than stochastic processes. Here we use a simple, sorghum system with abundant sampling to show that stochastic forces (drift or stochastic dispersal) act on fungal community assembly in leaves and roots early in host development and when sorghum is drought stressed, conditions when mycobiomes are small. Unexpectedly, we find no signal for stochasticity when drought stress is relieved, likely due to renewed selection by the host. In our experimental system, the host compartment exerts the strongest effects on mycobiome assembly, followed by the timing of plant development and lastly by plant genotype. Using a dissimilarity-overlap approach, we find a universality in the forces of community assembly of the mycobiomes of the different sorghum compartments and in functional guilds of fungi