1,989 research outputs found
Latency Relaxation: A Brief Analytical Review
In this report I review certain aspects of the research on the latency relaxation (LR), the minute relaxation of a stimulated muscle that occurs during the latter half of the latent period, i.e., just prior to the onset of contraction (e.g., Sandow, 1944). The first part of my discussion will be historical, dealing with the early, mostly descriptive work on the LR, and then I shall present a more analytically oriented attempt to indicate the significance of the LR in relation to certain aspects of the response of a muscle to stimulation
The Role of Local Identity in the Usage and Recognition of Anglo-Cornish Dialect Lexis
Despite the well attested finding that orientation to place can exhibit correlations with sociolinguistic usage, the role of place identity in sociolinguistic variation and change has been long disputed. The disputes often center around two key points. Firstly, a contested point is whether observed identity effects are independent statistically meaningful effects or whether they are corollaries of effects relating to other socio-demographic features such as age or socioeconomic class. Secondly, when place identity effects are found in sociolinguistic usage, few studies have explored the extent to which these effects can be attributed to acts of identity or to common interactions that can be influenced by attitudinal factors such as local orientation. To delve into these issues, I analyze lexical data from Cornwall and highlight the complexity involved in interpreting the role of place identity in sociolinguistic usage. I advocate, to varying extents, for both the act of identity and interlocutor frequency interpretations for different data sets
Subsystem Variables Associated with Positive Foster Mother-Foster Child Relationships
Many researchers have explored variables that appear to influence a foster child\u27s placement, and both researchers and theorists have noted the need for an overarching understanding of the variables that may affect a foster child\u27s care and progress. This study examined four interlinking subsystems of foster care: the foster child, the family of origin, the foster parent, and the social worker. Data regarding relevant variables for each of these subsystems were analyzed by means of canonical correlations, factor analyses, a multiple regression, and zero-order correlations. Participants in the study were 42 foster children from the Chesapeake and Suffolk Departments of Social Services, each of whom completed the Children\u27s Reports of Parental Behavior-56 (CRPB-56; Margolies & Weintraub, 1977) and their social workers, each of whom completed a questionnaire designed for this study. Data regarding the foster mothers were provided by the social workers, and data regarding the families of origin were gathered from the foster children\u27s charts using a form designed for this study. Results revealed that variables associated with the foster child and the foster mother were those most significantly associated with the quality of the relationship between the two. Specifically, a better fit between the foster mother and the foster child, better foster mother parenting skills, greater foster mother empathy, and the foster mother\u27s greater awareness of and ability to deal with the foster child\u27s losses were the foster mother variables associated with better foster mother-foster child relationships and greater improvement by the foster child within the placement. Greater foster child competencies, fewer acting out behavioral problems and, to a lesser extent, fewer acting in problems and earlier ages at the time of first removal from the family of origin were the foster child variables associated with better relationships and greater improvement within the placement. The findings of this study suggest that better selection and training of foster mothers, as well as interventions aimed at increasing foster child competencies and decreasing behavioral problems would result in improved foster care relationships and greater progress by foster children within their placements
An Emmet's tale: The duality of social and lexical change
Stockwell and Minkova (2001: 34) state that ‘the lexicon is the language layer most responsive to socio-political and cultural changes’. Despite this, lexis has been labelled as the ‘Cinderella of sociolinguistics’ (Beal 2010; Durkin 2012) due to the lack of focus on this level of linguistic structure by variationist sociolinguists. This article redresses the dearth of lexis-oriented sociolinguistic studies by considering the ways in which the lexicon is responsive to cultural changes in Cornwall, UK, by providing a case-study of the polysemous noun emmet (‘ant’ or ‘tourist’). From a study of 80 speakers from Cornwall, I consider the variation and change of emmet from the perspectives of semasiological and onomasiological usage as well as its social meaning. I conclude that this article provides support for Stockwell & Minkova’s (2001) claim and that lexical variation can provide unique insights to the sociolinguistic endeavour and enable sociolinguists to tell new stories about language and society
Size related processes in phytoplankton
Growth, death, respiration, excretion and sedimentation describe the major rate processes of phytoplankton. These rates often scale allometrically (rate=a*mass^b). The allometric coefficient (b) describes the deviation from a linear reltionship. Literature values derived from experiments showed allometric coefficients of -0.48 to -0.1. Experiments with natural phytoplankton communities from the baltic and the subtropical gyre of the North Atlantic ocean showed an allometric coeffcient range of -0.72 to -0.3. The results indicate that size scaling of rate processes in phytoplankton is more pronounced than previously thought
On U_q(SU(2))-symmetric Driven Diffusion
We study analytically a model where particles with a hard-core repulsion
diffuse on a finite one-dimensional lattice with space-dependent, asymmetric
hopping rates. The system dynamics are given by the
\mbox{U[SU(2)]}-symmetric Hamiltonian of a generalized anisotropic
Heisenberg antiferromagnet. Exploiting this symmetry we derive exact
expressions for various correlation functions. We discuss the density profile
and the two-point function and compute the correlation length as well
as the correlation time . The dynamics of the density and the
correlations are shown to be governed by the energy gaps of a one-particle
system. For large systems and depend only on the asymmetry. For
small asymmetry one finds indicating a dynamical exponent
as for symmetric diffusion.Comment: 10 pages, LATE
- …