Nuclear and extended spectra of NGC 1068-I. Hints from near-infrared spectroscopy

We report the first simultaneous zJHK spectroscopy on the archetypical Seyfert 2 galaxy NGC 1068 covering the wavelength region 0.9-2.4 mu m. The slit, aligned in the north-south direction and centred in the optical nucleus, maps a region 300 pc in radius at subarcsec resolution, with a spectral resolving power of 360 km s-1. This configuration allows us to study the physical properties of the nuclear gas including that of the north side of the ionization cone, map the strong excess of continuum emission in the K band and attributed to dust and study the variations, both in flux and profile, in the emission lines. Our results show the following. (1) Mid- to low-ionization emission lines are split into two components, whose relative strengths vary with the position along the slit and seem to be correlated with the jet. (2) The coronal lines are single-peaked and are detected only in the central few hundred of pc from the nucleus. (3) The absorption lines indicate the presence of intermediate age stellar population, which might be a significant contributor to the continuum in the near-IR spectra. (4) Through some simple photoionization models we find photoionization as the main mechanism powering the emitting gas. (5) Calculations using stellar features point to a mass concentration inside the 100-200 pc of about 1010 M(circle dot).

The role of predator overlap in the robustness and extinction of a four species predator-prey network

Predators and preys often form species networks with asymmetric patterns of interaction. We study the dynamics of a four species network consisting of two weakly connected predator-prey pairs. We focus our analysis on the effects of the cross interaction between the predator of the first pair and the prey of the second pair. This is an example where the predator overlap, which is the proportion of predators that a given prey shares with other preys, is not uniform across the network due to asymmetries in patterns of interaction. We explore the behavior of the system under different interaction strengths and study the dynamics of survival and extinction. In particular, we consider situations in which the four species have initial populations lower than their long-term equilibrium, simulating catastrophic situations in which their abundances are reduced due to human action or environmental change. We show that, under these reduced initial conditions, and depending on the strength of the cross interaction, the populations tend to oscillate before re-equilibrating, disturbing the community equilibrium and sometimes reaching values that are only a small fraction of the equilibrium population, potentially leading to their extinction. We predict that, contrary to one`s intuition, the most likely scenario is the extinction of the less predated preys. (C) 2010 Elsevier B.V. All rights reserved.

Self-adjoint extensions and spectral analysis in the Calogero problem

In this paper, we present a mathematically rigorous quantum-mechanical treatment of a one-dimensional motion of a particle in the Calogero potential alpha x(-2). Although the problem is quite old and well studied, we believe that our consideration based on a uniform approach to constructing a correct quantum-mechanical description for systems with singular potentials and/or boundaries, proposed in our previous works, adds some new points to its solution. To demonstrate that a consideration of the Calogero problem requires mathematical accuracy, we discuss some `paradoxes` inherent in the `naive` quantum-mechanical treatment. Using a self-adjoint extension method, we construct and study all possible self-adjoint operators (self-adjoint Hamiltonians) associated with a formal differential expression for the Calogero Hamiltonian. In particular, we discuss a spontaneous scale-symmetry breaking associated with self-adjoint extensions. A complete spectral analysis of all self-adjoint Hamiltonians is presented.

LiLEDDA – a six step forum-based netnographic research method for nursing and caring sciences

Internet research methods in nursing science are less developed than in other sciences. We choose to present an approach to conducting nursing research on an internet-based forum. This paper presents LiLEDDA, a six-step forum-based netnographic research method for nursing science. The steps consist of: 1. Literature review and identification of the research question(s); 2. Locating the field(s) online; 3. Ethical considerations; 4. Data gathering; 5. Data analysis and interpretation; and 6. Abstractions and trustworthiness. Traditional research approaches are limiting when studying non-normative and non-mainstream life-worlds and their cultures. We argue that it is timely to develop more up-to-date research methods and study designs applicable to nursing science that reflect social developments and human living conditions that tend to be increasingly online-based.

Distance measure and the p-median problem in rural areas

The p-median model is used to locate P facilities to serve a geographically distributed population. Conventionally, it is assumed that the population patronize the nearest facility and that the distance between the resident and the facility may be measured by the Euclidean distance. Carling, Han, and Håkansson (2012) compared two network distances with the Euclidean in a rural region witha sparse, heterogeneous network and a non-symmetric distribution of thepopulation. For a coarse network and P small, they found, in contrast to the literature, the Euclidean distance to be problematic. In this paper we extend their work by use of a refined network and study systematically the case when P is of varying size (2-100 facilities). We find that the network distance give as gooda solution as the travel-time network. The Euclidean distance gives solutions some 2-7 per cent worse than the network distances, and the solutions deteriorate with increasing P. Our conclusions extend to intra-urban location problems.

A Story of English Language Learning – How Can Children’s Literature be Used in Teaching Vocabulary to Young English Language Learners? : - A Literature Review

This study aims to find research relating to the use of children’s literature to promote vocabulary development in young children, particularly English language learners in Sweden. The main questions address how (methods) children’s literature can be used and why (reasons) children’s literature is often recommended for the teaching of vocabulary to young learners. The study also aims to explore reasons against the use of children’s literature in vocabulary teaching found in previous research. A systematic literature review was carried out, including results from five empirical studies. The studies involved native speakers, second language learners and foreign language learners from various backgrounds. The results suggest that while research has shown children’s literature to be a good tool to use with young learners, careful lesson planning needs to be carried out. Direct instruction and scaffolding using pictures, technology and gestures is recommended. Hence, the teacher plays an important part for the vocabulary development using children’s literature in the classroom.

Manifesta och latenta ideologier om lärande inom svensk spelmansrörelse under 1920-talet

The purpose of this article was to illuminate existing educational ideologies in the Swedish fiddler movement (Spelmansrörelsen) 1923-1927. This period was characterized by the organization and to some extent institutionalization of Swedish folk music. Furthermore, the purpose was to discuss the results in relation to the folk music education of today. The empirical data was taken from the journal Hembygden, which was a magazine for scholars, enthusiasts and practitioners of folk music. Theoretically, the study was based on a concept of ideology developed by Sven-Eric Liedman: in every time there are two basic forms of identifiable ideology, manifest and latent. From the empirical material as a whole (around 900 articles), a selection was made to find articles dealing with aspects of learning among the fiddlers (33 articles). After content analysis the following themes were generated: Fiddlers’ repertoire, Fiddlers’ masters, Rooms for learning, Learning formation. The writers in Hembygden often emphasized the autodidactic aspects of learning and especially the importance of learning by ear. This manifest ideology of authenticity presumed that learning directly from another fiddler by playing together was to prefer to formal schooling. In spite of a tendency towards more ensemble playing, the folk music education of today in Sweden is characterized by a similar retrospective ideology as in the 1920s.

Change and stasis in schoolmusic education in Victoria: the past informing the future

This article reviews the current state of music education in Victoria in terms of both past and present issues. It is argued that many of these issues are the result of change and stasis that have occurred over the past 150 years of school music in Victoria. The principal issues that confront the present generation of music educators and policy makers are the role and place of music in school education and the provision of music teachers for government schools. Both of these issues are discussed in terms of the historical development of music in Victorian schools and it is demonstrated that many of the problems associated with these issues are either cyclical in nature, or have been endemic and simply never adequately addressed. It is suggested that one of the principal challenges to be faced in the government school sector at present is to retain the integrity of music as a discrete subject area in face of the current trend towards a generically-based arts curriculum. There is often a tendency in education to adopt an overly critical and even pessimistic approach to what are perceived as long-standing and seemingly insolvable problems. However, a counter-balancing factor is the rich heritage of Victorian music education which provides the basis for a more optimistic outlook. An important aspect of this heritage is the example of many outstanding music educators in Victoria and elsewhere. It is argued that a knowledge of such past achievements as well as a fuller appreciation of the historical development of music education policies and practices should provide a more informed and rational basis from which to decide the future course of music education in Victoria.

Workplace learning and flexible delivery

Workplace learning has developed as a field both of practice and of research over the past decade. The increase in interest is due in part to heightened awareness that workplace knowledge and skills contribute to enterprise and national competitiveness, but it is also due to an increased focus on the connections to be made between theory and practice as part of an education or training experience. At the same time, new learning technologies have enhanced delivery of instruction and learning materials in workplaces. This article reviews some of the conceptualizations of workplace learning and its cognitive bases. It also examines workplaces as learning environments and considers the special challenges involved in the flexible delivery of training to workplaces.

A new voice in a new place: musical encounters with a difference

Australian education providers at the university level are being challenged to be more inclusive of cultural diversity and associated knowledge systems in their curricula. This article reports on some findings of a research study that aimed to evaluate the introduction of African music to primary teacher education students and to provide them with a context for assimilating African music into their own teaching practice. This paper reports on my work as a music educator in sharing my different worlds of experience ‘with one voice’ in order to expand students’ local knowledge base. It also discusses the nature and applications of African music and demonstrates some aspects that correlate with Western music. Through a study of both Western and African pedagogies and repertoire, students were able to gain a more holistic perspective of the role of music in society and were able to contextualize and transfer epistemological and pedagogical insights from one society to another.

Enhancing students' experience in music composition through music notation software

A project was undertaken in a Hong Kong primary school to investigate the role of music notation software in leaching music composition. The project was divided into three stages. During the first stage, appropriate hardware equipment and software applications were installed in the school music room, and four teaching plans were developed on the models and strategies derived from findings in the local and international literature. During the second stage, these teaching plans were implemented in Grade One, Grade Three, Grade Five and Grade Six classes of the school. During the third stage, the effectiveness of these teaching activities was evaluated by comparing the experiences from the second stage to the corresponding findings from similar projects undertaken in other Hong Kong primary schools, as well as to findings from the international literature. The results demonstrated that tile visual and audio stimulation created by computer"based technology can motivate students to successfully engage in music composition. Moreover, computer"based technology provides an opportunity for students to compose music in an atonal idiom. However, a large number of students were unable to demonstrate the concept of structural design in their musical products, and one of the findings from this investigation was that teachers need to be more purposeful in their teaching by directing students to employ the technique of repetition of interesting musical fragments or phrases in order to achieve a sense of unity in their pieces.

Student satisfaction : impact of age and gender on satisfaction among international postgraduate students from Asia

Customer satisfaction is a core-marketing concept. It is considered as a major outcome of marketing activity and serves to link processes, culminating in purchase and consumption with post-purchase phenomena such as attitudinal change, customer retention, repeat purchase, brand loyalty, positive word-of-mouth communication. Student satisfaction is a strategic factor in developing a competitive advantage in the highly attractive and globally competitive international education market. Market forecasts indicate a seven-fold increase in the number of students seeking higher education overseas by 2025 and given the competitiveness of the industry, universities will need to focus on variables influencing student satisfaction in order to address areas where improvements in service quality are required.

A sample of 371 postgraduate students from China, India, Indonesia and Thailand, is investigated. The study highlights the development of a scale to measure international postgraduate student satisfaction. The scale demonstrates the importance of four predominant factors influencing university choices - Education Resources; Communication and Guidance; Customer Value and Study Outcomes; and Image, Prestige and Recognition. Using logistic regression and chi square testing, this paper investigates the impact of age and gender on satisfaction among international postgraduate students from four Asian countries studying in universities in Victoria, Australia, on theses factors. The results indicate that age has a positive relationship with satisfaction among postgraduate students while the influence of gender has no effect on influencing satisfaction among postgraduate students from Asia.

An analysis of computer-mediated marketing education : the relationship between access to WEBCT, tutorial attendance and student grades

One of the problems faced by Australian academics in the 21 st century is to facilitate learning with a changing profile of students, in bigger and bigger classes. As educators at tertiary institutions, our environment is undergoing major changes as increasingly marketing programs are offering courses either partially (Web enabled) or totally (Web exclusive) online. This study has developed a significant model allowing the prediction of students' overall results and indicates that a student's final grade is dependant, in part, on accessing the study materials and study tools available to them via WebCT and attending face-to-face tutorials.

Music education research in Australia - 2007

Summarises current music research in Australia such as the establishment of the Bibliography of Australian Music Education Research (BAMER) database, conferences held by the Australian Society for Music Education, and recently completed post-graduate research studies in music education (includes some abstracts).

Workplace strategies and facilities management

This book provides comprehensive coverage of issues that facility managers in the property industry need to understand and apply in the pursuit of value for money over the life span of built facilities. The authors introduce the fast-growing discipline of facility management, examine the core competencies that facility managers should possess and study different contemporary drivers of change. The book emphasises the need to consider facilities management issues at the pre-design stage of the construction process, rather than only when the building is completed, in order to maximise value for money.