School-based mentoring in initial teacher education : the exploratory phase

The Faculty of Education at the University of Malta has long set its eyes on introducing some form of school-based mentoring as part of initial teacher education (ITE). Over the years, faculty staff members have become increasingly more convinced of the professional benefits that can be derived when carefully selected and trained practitioners in schools mentor ITE students during field placements. Important developments outside the Faculty have also paved the way for the eventual introduction of school-based mentoring. Suffice it to mention the declared support, at least in principle, by a number of key stakeholders outside the Faculty who operate in the field of education. This support appears to extend across the Ministry for Education and Employment, policy makers, the Directorates for Education, high ranking administrators from the state, Church and independent school sectors, school leaders and teachers, and the teachers’ union. Put differently, the indications are that the local context, in the widest sense of the word, is now ready for the development and implementation of a sustainable school-based mentoring system that is tailored to address the professional learning needs of faculty students enrolled in ITE studies.peer-reviewe

The Removal of Artificially Generated Polarization in SHARP Maps

We characterize the problem of artificial polarization for the Submillimeter High Angular Resolution Polarimeter (SHARP) through the use of simulated data and observations made at the Caltech Submillimeter Observatory (CSO). These erroneous, artificial polarization signals are introduced into the data through misalignments in the bolometer sub-arrays plus pointing drifts present during the data-taking procedure. An algorithm is outlined here to address this problem and correct for it, provided that one can measure the degree of the sub-array misalignments and telescope pointing drifts. Tests involving simulated sources of Gaussian intensity profile indicate that the level of introduced artificial polarization is highly dependent upon the angular size of the source. Despite this, the correction algorithm is effective at removing up to 60% of the artificial polarization during these tests. The analysis of Jupiter data taken in January 2006 and February 2007 indicates a mean polarization of 1.44%+/-0.04% and 0.95%+/-0.09%, respectively. The application of the correction algorithm yields mean reductions in the polarization of approximately 0.15% and 0.03% for the 2006 and 2007 data sets, respectively.Comment: 19 pages, 7 figure

Post-Traumatic Growth after Cancer: A Thematic Analysis Study

Background: That a diagnosis of, and treatment to cancer brings along shock, distress and possible long-term negative life changes is very clear from human experience and research alike. But such an experience can also relate to positive life changes, as increasing research on the aftermath of serious illness, such as cancer diagnosis consistently shows. Observations of positive outcomes linked to quality of life are increasingly being found in cancer studies. These results seem to converge with post-traumatic growth (PTG)  which emphasize positive life changes as resulting from considerable life-changing events that are borne from crises or trauma. Objectives: Aims to this study were to 1) investigate the holistic impact and ramifications of PTG on the recovery from serious illness such as cancer; 2) clarify the relationship, if any, of PTG with mental health outcomes; and 3) how is PTG strengthened or otherwise, when one is faced by such life-changing event. Methods: Using a Thematic Analysis design, we investigated how the diagnosis of, and treatment to cancer impacted the patients and survivors. Semi-structured interviews were conducted with people who had received treatment for breast (n=3), MSS (n=1), ovarian (n=2), bone (n=2), H. Lymphoma (n=1), Liver (n=1). Using descriptive mapping, we clarified whether this study results are consistent with Tedeschi and Calhoun’s PTG framework. Results: Findings charted on the key factors of PTG. Conclusions: Cancer results in varied consequences and in negative and positive adjustments. Further development of findings which charted on major PTG dimensions is warranted

The DDO IVC Distance Project: Survey Description and the Distance to G139.6+47.6

We present a detailed analysis of the distance determination for one intermediate Velocity Cloud (IVC G139.6+47.6) from the ongoing DDO IVC Distance Project. Stars along the line of sight to G139.6+47.6 are examined for the presence of sodium absorption attributable to the cloud, and the distance bracket is established by astrometric and spectroscopic parallax measurements of demonstrated foreground and background stars. We detail our strategy regarding target selection, observational setup, and analysis of the data, including a discussion of wavelength calibration and sky subtraction uncertainties. We find a distance estimate of 129 (+/- 10) pc for the lower limit and 257 (+211-33) pc for the upper limit. Given the high number of stars showing absorption due to this IVC, we also discuss the small-scale covering factor of the cloud and the likely significance of non-detections for subsequent observations of this and other similar IVC's. Distance measurements of the remaining targets in the DDO IVC project will be detailed in a companion paper.Comment: 10 pages, 6 figures, LaTe

Mercy in the Maltese educational system : education practices to foster respect for diversity towards the migrant population

The growing diversity of learners in Maltese schools presents new challenges to policy-makers and practitioners. Schools and teachers often find themselves at odds when trying to respond to the increasingly diverse needs of the student population within schools. Over the past decade Malta made the shift from a country of emigration to a country of immigration. This trend is represented in Maltese schools, as the student population becomes increasingly heterogeneous. While this new reality is more pronounced in certain areas, all colleges have a representation of non-Maltese students, with Maria Regina College having the highest representation with a total of 1,134 students (819 at primary level, 95 in middle school and 220 in secondary school) and Saint Nicholas College having the lowest number, with a total population of eighty one migrant students (fifty-nine in the primary, eleven in middle school and eleven in the secondary school).peer-reviewe

Composites with needle-like inclusions exhibiting negative thermal expansion : a preliminary investigation

In this work a simple cylindrical structure with a stiff needle-like inclusion embedded within a much softer matrix is presented and analysed with the aim of obtaining a system with tunable thermal expansion properties. It is shown that by the correct combination of the thermal and mechanical properties of the matrix and inclusion, it is possible to design a system which can be tailor-made to exhibit particular values of the coefficient of thermal expansion (CTE) in the radial direction and also negative thermal expansion (NTE). In particular an analytical model to quantify the radial strain with changes in temperature is derived and verified through finite element analysis. The model is used to find correct property combinations which lead to particular values of thermal expansion which could also be negative or zero.peer-reviewe

Loose packings of frictional spheres

We have produced loose packings of cohesionless, frictional spheres by sequential deposition of highly-spherical, monodisperse particles through a fluid. By varying the properties of the fluid and the particles, we have identified the Stokes number (St) - rather than the buoyancy of the particles in the fluid - as the parameter controlling the approach to the loose packing limit. The loose packing limit is attained at a threshold value of St at which the kinetic energy of a particle impinging on the packing is fully dissipated by the fluid. Thus, for cohesionless particles, the dynamics of the deposition process, rather than the stability of the static packing, defines the random loose packing limit. We have made direct measurements of the interparticle friction in the fluid, and present an experimental measurement of the loose packing volume fraction, \phi_{RLP}, as a function of the friction coefficient \mu_s.Comment: 6 pages, 5 figure

Magnetic Fields and Infall Motions in NGC 1333 IRAS 4

We present single-dish 350 micron dust continuum polarimetry as well as HCN and HCO+ J=4-3 rotational emission spectra obtained on NGC 1333 IRAS 4. The polarimetry indicates a uniform field morphology over a 20" radius from the peak continuum flux of IRAS 4A, in agreement with models of magnetically supported cloud collapse. The field morphology around IRAS 4B appears to be quite distinct however, with indications of depolarization observed towards the peak flux of this source. Inverse P-Cygni profiles are observed in the HCN J=4-3 line spectra towards IRAS 4A, providing a clear indication of infall gas motions. Taken together, the evidence gathered here appears to support the scenario that IRAS 4A is a cloud core in a critical state of support against gravitational collapse.Comment: 23 pages, 6 figures, 2 table