538 research outputs found
âDumping Groundsâ or a Meaningful Educational Experience? - the involvement of Scotlandâs Colleges in the education of disengaged young people
The research examines the discourses surrounding disengaged young people, particularly those under the age of 16, and the role of Scotlandâs Colleges in making provision for them. Consideration is given to the voices of the young people themselves: how their college experiences compare to school and how they view themselves over this transition period. Consideration is also given to the policy in this area and how it has developed since the Beattie watershed of 1999. The debate surrounding the involvement of colleges in the provision of education for this group of young people touches on issues of social justice and the construction of children and young people, as well as throwing up questions about the roles and identity of Scotlandâs schools and colleges. Among the questions it raises about colleges, it raises issues of pedagogy and of the professional status of its teaching staff and offers recommendations about the lessons each sector might learn from the other . Ultimately, it proposes that Scotlandâs Colleges are uniquely placed to seek ascendancy in the post-school sector, welcoming and developing the role that they now play in the transition of young people to adulthood
The Buoyant Behavior of Viral and Bacterial DNA in Alkaline CsCl
In equilibrium density gradient centrifugation, the banding polymer species is electrically neutral. The banding species for a negative polyelectrolyte with a polyanion
P_(n)^(-z)n (where n is the degree of polymerization, and z the titration charge per monomer unit) in a CsCl salt gradient is CS_(zn)P_n. If the ion P_(n)^(-z)n is itself a weak acid, it may be titrated to the state P_(n)^(-(Zn+y)) by CsOH; the banding species is then Cs_(zn+y)P_n. Because of the large mass and high effective "density" of a Cs^+ ion, it is to be expected that the buoyant density in a CsCl gradient of a polymer acid will be increased by such a partial alkaline titration with CsOH. This expectation has been confirmed for polyglutamic acid (where z = 0 at low pH). The guanine and thymine monomer units of DNA are weak acids. The present communication is concerned with the increase in buoyant density of DNA in alkaline CsCl solutions. It is well known that the guanine and thymine protons are more readily titrated in denatured DNA than in native DNA. We find that the buoyant density of denatured DNA and of single strand ÏX-174 DNA gradually increases as the pH of the solution is increased beyond pH 9.8. The density of native DNA is not affected until a critical pH > 11 is reached, where the DNA abruptly denatures and increases in density. Similar increases in buoyant density have been observed independently by Baldwin and Shooter in their studies of 5BU[overbar]-substituted DNA's in alkaline solutions
'Dumping grounds' or a meaningful educational experience? : the involvement of Scotland's colleges in the education of disengaged young people
The research examines the discourses surrounding disengaged young people, particularly those under the age of 16, and the role of Scotlandâs Colleges in making provision for them. Consideration is given to the voices of the young people themselves: how their college experiences compare to school and how they view themselves over this transition period. Consideration is also given to the policy in this area and how it has developed since the Beattie watershed of 1999. The debate surrounding the involvement of colleges in the provision of education for this group of young people touches on issues of social justice and the construction of children and young people, as well as throwing up questions about the roles and identity of Scotlandâs schools and colleges. Among the questions it raises about colleges, it raises issues of pedagogy and of the professional status of its teaching staff and offers recommendations about the lessons each sector might learn from the other . Ultimately, it proposes that Scotlandâs Colleges are uniquely placed to seek ascendancy in the post-school sector, welcoming and developing the role that they now play in the transition of young people to adulthood.EThOS - Electronic Theses Online ServiceGBUnited Kingdo
Agreement between proxy and adolescent assessment of disability, pain, and well-being in juvenile idiopathic arthritis.
OBJECTIVES: Adolescents with juvenile idiopathic arthritis have demonstrated substantial disagreement with their proxy's assessment of their disability, pain, and well-being. Our objective was to describe the clinical and psychological factors associated with discordance. STUDY DESIGN: This analysis included 204 proxy-adolescent (median age, 13 years) dyads that completed a Childhood Health Assessment Questionnaire for disability with 100-mm visual analogue scales for pain and well-being. Depressive symptoms in adolescents were measured by the Mood and Feelings Questionnaire and in proxies the General Health Questionnaire. Disagreement was assessed using Bland-Altman plots. Associations with discordance were identified using logistic regression analyses. RESULTS: There was higher agreement for disability (84%) than for pain (71%) and well-being (66%). Regression analyses found no association between age, sex, or disease duration and disagreement. However, relationships between disease activity and disagreement in outcomes were identified. Independent associations were found between increasing Mood and Feelings Questionnaire scores and disagreement in pain and well-being. CONCLUSIONS: Proxy and adolescent reports of pain and well-being are more likely to disagree in those with severe disease. Adolescents who report depressive symptoms are also more likely to disagree with their proxy. The reasons for these are multifactorial, and considerations of both reports are important when assessing outcomes in juvenile idiopathic arthritis
Evaluation of a structured preceptorship programme
Preceptorship is a period in which newly qualified staff nurses receive support from an experienced nurse to smooth their transition into the service. District nurses (DNs) from the authors' trust informally expressed the need for a better transition between the completion of district nursing education and entry into the workforce. Hence, a structured preceptorship programme was developed and delivered. This article describes this service initiative and its evaluation by preceptors (n=14) and preceptees (newly qualified DNs; n=13). Both groups valued having a structured preceptorship programme. Preceptees agreed that having a named preceptor was very important, and preceptors felt that the role which they played was rewarding. Both groups felt that the role of the DN was a specialist role and that the preceptorship programme helped to support newly qualified staff make the transition into qualified DNs, clinical team leaders and, ultimately, caseload holders. A large-scale study of DN practice is required to develop a national consensus on the structure and content of preceptorship programmes for district nursing
JAtlasView: a Java atlas-viewer for browsing biomedical 3D images and atlases
BACKGROUND: Many three-dimensional (3D) images are routinely collected in biomedical research and a number of digital atlases with associated anatomical and other information have been published. A number of tools are available for viewing this data ranging from commercial visualization packages to freely available, typically system architecture dependent, solutions. Here we discuss an atlas viewer implemented to run on any workstation using the architecture neutral Java programming language. RESULTS: We report the development of a freely available Java based viewer for 3D image data, descibe the structure and functionality of the viewer and how automated tools can be developed to manage the Java Native Interface code. The viewer allows arbitrary re-sectioning of the data and interactive browsing through the volume. With appropriately formatted data, for example as provided for the Electronic Atlas of the Developing Human Brain, a 3D surface view and anatomical browsing is available. The interface is developed in Java with Java3D providing the 3D rendering. For efficiency the image data is manipulated using the Woolz image-processing library provided as a dynamically linked module for each machine architecture. CONCLUSION: We conclude that Java provides an appropriate environment for efficient development of these tools and techniques exist to allow computationally efficient image-processing libraries to be integrated relatively easily
Geodetic Brane Gravity
Within the framework of geodetic brane gravity, the Universe is described as
a 4-dimensional extended object evolving geodetically in a higher dimensional
flat background. In this paper, by introducing a new pair of canonical fields
{lambda, P_{lambda}}, we derive the quadratic Hamiltonian for such a brane
Universe; the inclusion of matter then resembles minimal coupling. Second class
constraints enter the game, invoking the Dirac bracket formalism. The algebra
of the first class constraints is calculated, and the BRST generator of the
brane Universe turns out to be rank-1. At the quantum level, the road is open
for canonical and/or functional integral quantization. The main advantages of
geodetic brane gravity are: (i) It introduces an intrinsic, geometrically
originated, 'dark matter' component, (ii) It offers, owing to the Lorentzian
bulk time coordinate, a novel solution to the 'problem of time', and (iii) It
enables calculation of meaningful probabilities within quantum cosmology
without any auxiliary scalar field. Intriguingly, the general relativity limit
is associated with lambda being a vanishing (degenerate) eigenvalue.Comment: 23 pages, 1 figure, minor change
Stealth Branes
We discuss the brane world model of Dvali, Gabadadze and Porrati in which
branes evolve in an infinite bulk and the brane curvature term is added to the
action. If Z_2 symmetry between the two sides of the brane is not imposed, we
show that the model admits the existence of "stealth branes" which follow the
standard 4D internal evolution and have no gravitational effect on the bulk
space. Stealth branes can nucleate spontaneosly in a Minkowski bulk. This
process is described by the standard 4D quantum cosmology formalism with
tunneling boundary conditions for the brane world wave function. The notorious
ambiguity in the choice of boundary conditions is fixed in this case due to the
presence of the embedding spacetime. We also point to some problematic aspects
of models admitting stealth brane solutions.Comment: 24 pages; Final version, to appear in Phys. Rev. D. The discussion of
"embeddability obstruction" is removed (thanks to Takahiro Tanaka who
convinced us that there is no such obstruction
Geometry of Brane-Worlds
The most general geometrical scenario in which the brane-world program can be
implemented is investigated. The basic requirement is that it should be
consistent with the confinement of gauge interaction, the existence of quantum
states and the embedding in a bulk with arbitrary dimensions, signature and
topology.
It is found that the embedding equations are compatible with a wide class of
Lagrangians, starting with a modified Einstein-Hilbert Lagrangian as the
simplest one, provided minimal boundaries are added to the bulk.
A non-trivial canonical structure is derived, suggesting a canonical
quantization of the brane-world geometry relative to the extra dimensions,
where the quantum states are set in correspondence with high frequency
gravitational waves. It is shown that in the cases of at least six dimensions,
there exists a confined gauge field included in the embedding structure. The
size of extra dimensions compatible with the embedding is calculated and found
to be different from the one derived with product topology.Comment: Minor changes and a correction to equation (22). 9 pages twocolumn
Revte
Race and sex: teachers' views on who gets ahead in schools?
The research reported here was part of a large study of the impact of age, disability, race and sex on the teaching profession in England. The basic question asked in this research was how do these factors interact with career aspirations and achievements of classteachers, promoted teachers and headteachers? There were three different data sources: a large postal survey drawn from diverse geographic regions across England with over 2000 respondents; faceâtoâface individual interviews with over 100 teachers in 18 case study schools from across all of the main regions of England; discussions with special interest groups of teachers. Not surprisingly, the answer to the above question was complex. Nonetheless, the paper's conclusion highlights some of the noteworthy themes across this broad sample of teachers from primary, secondary and special schools
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