Asymptotic-preserving projective integration schemes for kinetic equations in the diffusion limit

We investigate a projective integration scheme for a kinetic equation in the limit of vanishing mean free path, in which the kinetic description approaches a diffusion phenomenon. The scheme first takes a few small steps with a simple, explicit method, such as a spatial centered flux/forward Euler time integration, and subsequently projects the results forward in time over a large time step on the diffusion time scale. We show that, with an appropriate choice of the inner step size, the time-step restriction on the outer time step is similar to the stability condition for the diffusion equation, whereas the required number of inner steps does not depend on the mean free path. We also provide a consistency result. The presented method is asymptotic-preserving, in the sense that the method converges to a standard finite volume scheme for the diffusion equation in the limit of vanishing mean free path. The analysis is illustrated with numerical results, and we present an application to the Su-Olson test

A comparison of theory and practice in market intelligence gathering for Australian micro-businesses and SMEs

Recent government sponsored research has demonstrated that there is a gap between the theory and practice of market intelligence gathering within the Australian micro, small and medium businesses (SMEs). Typically, there is a significant amount of information in literature about 'what needs to be done', however, there is little insight in terms of how market intelligence gathering should occur. This paper provides a novel insight and a comparison between the theory and practices of market intelligence gathering of micro-business and SMEs in Australia and demonstrates an anomoly in so far as typically the literature does not match what actually occurs in practice. A model for market intelligence gathering for micro-businesses and SMEs is also discussed

A comparison of theory and practice in market intelligence gathering for Australian micro-businesses and SMEs

Recent government sponsored research has demonstrated that there is a gap between the theory and practice of market intelligence gathering within the Australian micro, small and medium businesses (SMEs). Typically, there is a significant amount of information in literature about 'what needs to be done', however, there is little insight in terms of how market intelligence gathering should occur. This paper provides a novel insight and a comparison between the theory and practices of market intelligence gathering of micro-business and SMEs in Australia and demonstrates an anomoly in so far as typically the literature does not match what actually occurs in practice. A model for market intelligence gathering for micro-businesses and SMEs is also discussed

A comparative study of some drapery fabrics available in 1942 and 1943

Publication authorized August 19, 1943.Digitized 2007 AES.Includes bibliographical references

The effects of wartime measures on cotton dress fabrics

Publication authorized August 20, 1943.Digitized 2007 AES.Includes bibliographical references

The validation of a new articulator system for orthognathic model surgery

A review of the literature showed that the outcome of orthognathic surgery may differ from the planned outcome, that casts mounted on semi-adjustable articulators show systematic errors of orientation and that there may be a causal connection between them. It was demonstrated that the movements of casts mounted on, and moved relative to, a standard articulator produced movements of different magnitudes relative to the natural head position. A mathematical model was developed to quantify the difference and the predictions of the resulting equations were confirmed in a photographic study using image analysis. The second stage of the study compared a standard and the orthognathic articulator. Plastic model skulls were mounted at different angulations to represent different natural head positions. Casts of the maxillary teeth of the skulls mounted on the orthognathic articulator accurately reproduced the occlusal plane angles of the skulls, but those mounted on the standard articulator showed systematic errors of up to 28º. Surgical movements of the maxilla were reproduced using perioperative wafers constructed on casts mounted on the standard and orthognathic articulators. The accuracy of the maxillary repositioning was assessed at five anatomical reference points on the skulls. The results indicated that the orthognathic articulator was significantly more accurate than the standard articulator

Mother Love: My Mother Excerpts from a Feminist Diary

In this work I write of mother love, of mothering, of a love of family and community,the nurturing of self-reliance, bold and enterprising spirits and pure hearts. I am presenting this work from a Black feminist or womanist, reflective standpoint even though I was cautioned as a child not to be too or so “womanish” in my behaviour.I was cautioned to not act as though I were older than I actually was; not to rushto grow up “before my time.” I am not conscious of rebelling, but from an early ageemulated my mother’s strong will, her determination and her resourcefulness—herwill to survive poverty and contest exploitation and oppression. Black folk who livein racist, ethnocentric, sexist and patriarchal societies where white and ‘light’ skin is privileged and given supremacy, need to tell their own stories—stories that resonate with love and laughter even as they may be poignant and heart wrenching. It is important that we put a human face to poverty and oppression, to let others whoquestion our origins know that like all beings we come from some place and bringmuch of value with us to where we now stand

Alien Registration- Bell, Pauline E. (Westfield, Aroostook County)

https://digitalmaine.com/alien_docs/32717/thumbnail.jp

EFFECTS OF A COLLABORATIVE TEACHING MODEL OF PROFESSIONAL DEVELOPMENT ON NEW SIXTH THROUGH TWELFTH GRADE TEACHERS’ ATTITUDES, SELF-EFFICACY, MOTIVATION AND IMPLEMENTATION OF INSTRUCTION

The purpose of this study was to assess the effects of a collaborative teaching model of professional development on new sixth through twelfth grade teachers’ attitudes, self-efficacy, motivation, and implementation of instruction. Educating students in the 21st century requires not only content expertise and the desire to teach, but pedagogical competence. To acquire these requisite skills, new classroom teachers need more than discrete, periodic, in-house or off-campus professional development programs. This research investigated the effectiveness of a collaborative teaching model for 6th through 12th grade teachers (n = 23) using a Pre/Post Quasi-Experimental Design. The dependent variables were the teachers’ attitudes toward professional development, levels of self-efficacy, motivation, and implementation of instruction. The first three variables were measured by the Semantic Differential Scale (SDS), the Teacher Efficacy Scale (TES), and the Work Motivation Inventory (WMI), respectively. A one-way repeated measures ANOVA was employed to determine change over time. Implementation of instruction was assessed using the Teaching Competencies: Non-Tenured Teacher Appraisal Program Observation. At the beginning and end of the study, observations (n = 6) of three voluntary collaborative teacher teams were conducted using the school district’s teacher evaluation form. To fully describe the effect of this dependent variable, data were described using means, standard deviations, and frequencies to view teacher classroom behavior. Lastly, a Teacher Exit Questionnaire assessed individual teacher (n = 23) reflection of the professional development role of the collaborative model. In this study, the independent variable was the active participation in a collaborative teaching model. The findings from the one-way repeated measures ANOVA revealed that the new 6th through 12th grade teachers (n = 23) showed statistically significant differences on pre and post assessments on two dependent variables (attitude and motivation). The Bonferroni pairwise comparisons revealed the mean differences for both variables were significant at the .05 level. Descriptive data from the Teaching Competencies: Non- Tenured Teacher Appraisal Program Observation and the Teacher Exit Questionnaire regarding the implementation of instruction showed that 96% of the teachers noted an increase in their ability to identify different student learning needs and apply appropriate strategies. Thus, both the statistically significant repeated measures effect and the teachers’ enacted and reported practice were impacted by the collaborative teaching model experience