Entropy-based collaborative detection of DDOS attacks on community networks

A community network often operates with the same Internet service provider domain or the virtual network of different entities who are cooperating with each other. In such a federated network environment, routers can work closely to raise early warning of DDoS attacks to void catastrophic damages. However, the attackers simulate the normal network behaviors, e.g. pumping the attack packages as poisson distribution, to disable detection algorithms. It is an open question: how to discriminate DDoS attacks from surge legitimate accessing. We noticed that the attackers use the same mathematical functions to control the speed of attack package pumping to the victim. Based on this observation, the different attack flows of a DDoS attack share the same regularities, which is different from the real surging accessing in a short time period. We apply information theory parameter, entropy rate, to discriminate the DDoS attack from the surge legitimate accessing. We proved the effectiveness of our method in theory, and the simulations are the work in the near future. We also point out the future directions that worth to explore in the future.

The second curriculum opera : Arias, assessment and methodological traces

Drawing on contemporary forms of qualitative research such as performance ethnography (McCall, 2000), autoethnography (Ellis & Bochner, 2000; Ellis & Flaherty, 1992) and using narrative and writing as forms of inquiry (Richardson, 1990; 1992; 1995a; 1995b; 1997; 1999; 2000), this research project constructs a 'learning through' (Gardner, 1983; 1993; 1995; 1999; 2003a; 2003b) approach to curriculum within pre-service teacher education. During 2002 we initiated the first curriculum opera (Dixon & White, 2003; Dixon, White, & Smerdon, 2003) in our Faculty of Education with thirty-seven students. In 2003 we developed this learning and teaching approach with twice as many students. We also reconsidered assessment of students involved in the opera for overall theoretical consistency. As students increasingly took control, they 'imagined curriculum' (Doll & Gough, 2002) and transformed their exploration of identity in the 'process of becoming' teachers (Britzman, 2003). In this paper, we outline the project and the learning involved. We also indicate future directions for learning and teaching in preservice teacher education as well as the potential uses and misuses of teacher assessment through portfolio.

The role of absorption in women's sexual response to erotica : a cognitive-affective investigation

This study examined the effect of absorption on women's emotional and cognitive processing of erotic film. Absorption was experimentally manipulated using 2 different sets of test session instructions. The first, participant-oriented, instruction set directed participants to absorb themselves in the erotic film presentation, imagining that they were active participants in the sexual activities depicted. The second, spectator-oriented, instruction set directed participants to observe and assess the erotic film excerpt as impartial spectators. The participant-oriented instruction set was found to elicit greater subjective absorption in women than the spectator-oriented instruction set, and women reported greater subjective sexual arousal in the former set compared with the latter. Thus, it appears that the degree to which a woman becomes absorbed in an erotic stimulus may affect her subsequent subjective sexual arousal. Also, women reported greater degrees of positive affect when they took a participant-oriented perspective than when they viewed the erotic materials as impartial spectators. Thus, participants who were highly absorbed in the erotic film excerpt were more likely to view the stimulus favorably. By contrast, the degree to which women became absorbed in the stimulus had no effect on their reported negative affect. Future directions for examining female response patterns are suggested.

Imagery in sport

Ch. 1. Introduction : the power of imagination -- Ch. 2. Definitions : what is imagery? -- Ch. 3. Theories : how does imagery work? -- Ch. 4. Imagery-ability and imagery-use assessment -- Ch. 5. Imagery research -- Ch. 6. Imagery perspectives -- Ch. 7. Psychophysiological research on imagery -- Ch. 8. Strategies for applying imagery -- Ch. 9. Uses for imagery -- Ch. 10. Technical aids to imagery -- Ch. 11. Injury rehabilitation and imagery -- Ch. 12. Exercise and imagery -- Ch. 13. Future directions in research and practice

Avian color vision and coloration : multidisciplinary evolutionary biology

A fundamental issue in biology is explaining the diversity of coloration found in nature. Birds provide some of the best-studied examples of the evolution and causes of color variation and some of the most arresting color displays in the natural world. They possess perhaps the most richly endowed visual system of any vertebrate, including UV-A sensitivity and tetrachromatic color vision over the 300-700-nm waveband. Birds provide model systems for the multidisciplinary study of animal coloration and color vision. Recent advances in understanding avian coloration and color vision are due to recognition that birds see colors in a different way than humans do and to the ready availability of small spectrometers. We summarize the state of the current field, recent trends, and likely future directions.

Jazz cats unmasked : revealing tales/tails of jazz education, musicians and teachers

New Zealand jazz education has come of age in the last 30 years.  The presence of a jazz curriculum in schools and universities has reflected students' desire to study this vernacular music and an adherence to international shifts in music education.  Yet, the Jazz genre commands the least market share in terms of record sales and concert attendance worldwide.  Now often described as America's true 'classical music', the cogent questions would seem to be 'why jazz', 'why now' and 'why here'?  This book explores these questions through the narrative of two New Zealand-born jazz educators who have made considerable contributions in post-secondary settigns.  It takes a critical look at their musical lives, and the influence that experience, context  and self-perception has ontheir teaching philosophies.  Stripping back the layers created by predominant binaries of musician/educator, glocal/global, history/genealogy, formal/informal and generalist/specialist, thsi book makes liberal use of a range of  arts-informed methodologies to unmask the main actors in jazz education adding to the ongoing broader international discussion of future directions of the art.

Women's cognitive and emotional processing during sexual arousal : the effects of erotic film and absorption

Sexual arousal is a complex and dynamic element of women’s sexuality. Accounts vary, however most multidimensional models highlight the cognitive, affective and physiological components of the female sexual arousal response. While literature examining the peripheral physiological changes that occur during female sexual arousal abounds, there has been a dearth of literature pertaining to the cognitive and affective components. Thus, while many authors have included cognitive and emotions as independent components of the female sexual arousal response, there has been little empirical research to validate this approach. The aim of the current thesis was to examine the cognitive and affective components of female sexual arousal in more depth, investigating the nature of the relationship between these components under various experimental conditions. In order to do so, two integrated studies were conducted, each highlighting the effects of either external or internal variables on women’s subjective sexual arousal, absorption, positive affect and negative affect. Study One was designed to evaluate women’s emotional and cognitive processing of two elements of erotic film – foreplay and erotic context. 60 women were asked to report their subjective sexual arousal, absorption, positive affect and negative affect in response to one of four erotic film excerpts. The erotic excerpts varied in accordance with the degree of foreplay (low vs. high) depicted and the context in which the sexual activities took place (novel vs. habitual context). Women in the study responded more favourably to the high foreplay erotic film excerpt, subsequently reporting higher degrees of subjective sexual arousal, absorption and positive affect. Women also responded favourably to the erotic excerpt filmed in a novel context, reporting greater subjective sexual arousal as a result. The environment in which the sexual encounters were filmed failed to have an effect however, on women’s absorption or their positive or negative affect. The results of Study One suggest that stimulus specific variables, such as the degree of foreplay depicted, have a significant influence on female cognitive and emotional processing of erotic film. The results also suggest that a relationship exists between absorption, subjective sexual arousal and positive affect, albeit a correlational one. Specifically, there was evidence of parallel processing during sexual arousal, as participant reported sexual arousal, absorption and positive affect all increased and decreased in unison. Based on the results it was suggested that future research attempt to experimentally manipulate one of these variables, to examine its direct effect on the remaining variable. Thus, Study Two aimed to examine the effects of absorption on women’s cognitive and emotional processing of erotica. Study Two manipulated absorption at two levels (high vs. low), examining the impact of these states on participants’ subsequent absorption, subjective sexual arousal and positive and negative affect. 62 women were asked to read one of two sets of test session instructions. The first, participant-oriented instruction set, instructed participants to immerse themselves in the erotic film excerpt, as if they were active participants in the sexual exchange. The second, spectator-oriented instruction set, directed participants to observe and evaluate the erotic film. These instructions were designed to elicit high and low degrees of absorption, respectively. The utility of this approach when manipulating female absorption, was demonstrated by self reported ratings of absorption, given at the conclusion of the film presentation. Participants were also asked to report their subjective sexual arousal and positive and negative affect at the conclusion of the erotic film presentation. The findings of this study suggest that the adoption of a participant-oriented (high absorption) perspective elicits more favourable responses from participants than a spectator-oriented (low absorption) perspective, with participants in the former experimental group reporting greater degrees of subjective sexual arousal and positive affect. Negative affect was equivalent across experimental conditions, with the participants reporting that they experienced little to no aversive feelings during either of the experimental conditions. The results suggest that the degree to which a women immerses and absorbs herself in a sexual stimulus has a significant impact in her subsequent cognitive and affective processing of that stimulus. More specifically, it appears that women respond more favourably when they are highly absorbed and immersed in a stimulus, reporting greater subjective sexual arousal and positive affect. Overall, the results of Studies One and Two highlight the dynamic and complex nature of female sexual arousal. It appears that women have definite cognitive and affective responses to sexual stimuli. The magnitude of these responses may be mediated by a number of factors however, including the intrinsic qualities of the stimulus and the degree to which the woman attends to the stimulus. Both these variables act to either enhance or inhibit the sexual arousal response. There results have important implications for current sexuality literature. While women’s cognitions and emotions in response to erotic film were generally highly correlated, in some instances they differed, warranting their inclusion as separate elements in models of female sexual arousal. Furthermore, it might be suggested that the inclusion of an additional variable – absorption – into current models of female sexual arousal would prove beneficial, aiding researchers to better understand and predict the arousal process. As such, recommendations are made for a revised model of female sexual arousal. In terms of future directions, the results of the present thesis have implications for the treatment of sexual dysfunctions, suggesting that clinicians need to understand the internal and external variables that might contribute to the aetiology and maintenance of their presenting problems.

Exploratory surgery of the female psyche

The thesis explores the visual narrative concerning a journey of empowerment for women. To enable the journey to advance the inquiry is directed into two areas. The first area is female gender, which is argued to be socially constructed and implicit in the marginalisation of women in western society. The second area is ‘feminine authority’, which is gained by developing an understanding and acceptance of the characteristics which have historically been considered as belonging to the feminine. Granting these characteristics agency would recognise their authority and assist in the elevation of the female to a position of equality in western society. Beginning from a feminist position, the research supported the belief that the female is marginalised in western society. It also confirmed the notion that empowerment and authority can be attained by women if they actively pursue the following; • Explore their own psychology beyond the existing socially constructed gender roles. • Develop an understanding of their feminine self by applying Jung's theories on individuation and archetypes. • Expose the underlying patriarchal influence in western epistemology and science by challenging existing deeply held cultural and scientific beliefs and by actively contributing as feminists to the areas of epistemology and science. Archetypal myths of the ‘feminine’ have developed from an androcentric position. They enforce and perpetuate gender imbalance which contributes to the disenfranchisement of women in western society, ‘Individuation’ is a process in which a person explores aspects of themselves to bring forth parts of their unconscious into their conscious mind in an attempt to gain a deeper understanding of themselves. As a consequence the consciousness develops closer links with archetypal memories which assists the exploration. The ‘true feminine’ is the feminine not restricted or defined by the dominant androcentric view. Knowledge of the feminine empowers women to address the marginalisation of the female in western society and assists in the process of gaining female authority. This enquiry also investigated the four stages of female psychological development with regard to patriarchal influences. Of particular importance is the second stage of psychological development where the female identifies with historically perceived inferior characteristics of the female. This is when she rejects her connections with the primacy of female power and her deep connections with nature which were inherited from archaic times. It is at this stage that she absorbs the myths associated with western patriarchal society which effectively disempower her. Western epistemology, with its emphasis on ‘objective’ investigation and empiricism contributes to the support for and promotion of ‘inferior’ female gender. This type of investigation is brought into question when areas of research into primates and human evolutionary theory is shown to develop from an androcentric view. Western knowledge has associations with power and justice and power is commonly associated with dominance. Regard for ‘truth’ and ‘absolute’ can be viewed as key elements in the support for knowledge and its associations with power. Knowledge has historically maintained suppression of individual experience which promotes a universalised account. This suppression of beliefs other than the dominant authority maintains the existing dominant social structure. Foucault's view of the genderised or inscribed body alerts us to areas where dominance, resistance and power play a part in maximising masculine power and control. Gender becomes an instrument of power within the existing patriarchal structure. Gender, knowledge and power are identified as areas obstructing female empowerment. Part 3 of this exegesis examines the imagery which embodies the visual narrative. Particularly, the harlequin image, its historical background and connections with ancient mythology including reference to Jungian psychology. The harlequin image is developed sequentially in the earlier black and white drawings on paper. These drawings contained a female figure which was often placed in juxtaposition with a Venus or goddess image, reference was also made to ‘eve’ and the ‘siren’. These elements provided the framework which enabled the harlequin image to emerge and evolve. The narrative developed with an understanding of the ‘feminine’ aspects of the psyche which resulted in the harlequin acquiring the elevated authority of a goddess. The Harlequin evolved from my need for symbolic representation of the female psyche. It represents contradiction and dualism. It is a composition of opposites, reflects masculine and feminine traits, the dark and light of the conscious and unconscious mind, it houses both comic and sinister elements, is a trickster and menace. The costume, colours and patterns are expressive elements conducive to fragmentation and layering within the composition of the paintings. Jung examined the harlequin in Picasso's paintings. He concluded that as Picasso drew on his inner experiences the harlequin became important as a symbol; it was a pictorial representation from the unconscious psyche. It travelled freely from the conscious to the unconscious and represented the masculine and feminine, chthonian and apollonian. The final painting in the series, a triptych, completes the narrative and stands alone as a salutatory work. It unites the series by combining existing compositional devices and technique while making reference to imagery from previous works, ‘The Three Graces Victorious’, expresses the authority of the feminine. It completes a victorious stage of a journey where the harlequin is empowered by archaic memories and knowledge of the psyche. The feminine is hailed, elevated and venerated. Other elements which assist in expressing the visual narrative are; colour, technique and influence. Colour is explored and its use as an emotive devise in expressionism. Paul Klee's writing on the use of colour and it's symbolic meaning and Julia Kristeva's investigation on colour from a psychoanalytic and semiotic view are also discussed. To indicate influences and connections within my oeuvre, reference is also made to the following: Jasper Johns' for his use of imagery in his ‘Four Seasons’ series with it's reference to a journey of maturation and Louise Bourgeois' work which deals with issues of gender, memories and past journeys. Although ‘The Three Graces Victorious’; the concluding painting for the investigation is celebratory and represents a finality to the thesis, it points to further areas that impede feminine development and need future examination. Reference is made to a continuation of the exploratory journey by plotting the Harlequin/Goddesses future directions. Although the Harlequin/Goddess is empowered with newly acquired authority, her future journey does not need to be bound by mathematics or limited by rationality. She does not require power to dominate or gender structures to subjugate, but requires limitless boundaries and contexts. The Harlequin/Goddess's future journey is not fixed.

Community development and enterprise culture : prospects and dilemmas

Community Development as a form of practice promotes empowerment and social justice. Its origins lie in people's collective struggle to be heard, recognised and accorded full citizenship in society. It has developed strategies to achieve social change that challenge dominant ways of thinking, policy and resource allocation in society. 'Enterprise culture has its origins in the individualism and competitiveness of capitalism. These essentially neo-liberalist concepts have been remoulded into a radical political program of change sponsored by the state under the guise of new managerialism, competitive tendering and privatization. This research seeks to examine the interface between community development and enterprise culture as a potential site of tension and contestation through an analysis of discourse. The initial task, therefore, was to elaborate the concept of enterprise culture and examine the ways enterprise culture has been manifested in community development. The focus has been on practitioners committed to community development through a qualitative, empirical approach with a view to discerning their views on the relevance and impact of enterprise culture on their work. Community development provides a useful domain for interrogating the infiltration of the concept of the enterprise culture because of its history of opposition and mobilisation. The research seeks to understand the ways in which the forms of enterprise culture as an essentially cultural project are manifested in practice contexts and to analyse the nature of the response to its various manifestations. As a result, it constitutes more than just a critique of any one of these forms, eg, privatisation, tendering out, managerialism, and instead seeks to investigate the degree to which a cultural shift may be occurring towards notions of greater individualism and away from collective notions of responsibility, obligation and citizenship. The research critically analyses the impact of enterprise culture on Australian social policy through the case study of community development practice. The manifestations of enterprise culture are investigated at various levels, with an emphasis on the responses of practitioners. A related aim is to reveal the range of possible responses to the infiltration of the enterprise culture in terms of values, language and practice into community development. Are new forms of practice emerging or is the field being steadily co-opted by government social and educational policy? Finally, the research should enable some future directions to be identified for the field of community development. The findings represent an initial attempt in an Australian context to establish the degree of influence that enterprise culture has had and/or will have on social policy. Chapter 1 examines the concept of enterprise culture and a background to its impact on community development as a domain of practice. The meaning of enterprise culture and its origins will be examined in Chapter 2. Its influence on Australian social policy is then discussed with particular reference to recent changes in Victoria regarding family services. In Chapter 3, the main features of critical discourse analysis are outlined as a framework for subsequent analysis of the links between discourse and hegemony. The work of Fairclough (1992, 1995) is utilised to highlight the relevance of discourse analysis to an examination of the infiltration of ideas associated with enterprise culture into the domain of community development. Chapter 4 provides an overview of the origins and defining characteristics of community development practice. The diverse beginnings and philosophical underpinnings are discussed and the main features of community development outlined in order to establish meanings attached to key concepts such as empowerment and participation. In Chapter 5, the findings of initial interviews with sixteen community development practitioners are discussed in terms of their perceptions of the impact of enterprise culture on their practice and the organisational culture within which they operate. These initial interviews were conducted in November-December 1996. A primary focus of the interviews was to establish the key words in their lexicon of practice and to provide an opportunity for reflection on the relative influence of discourse and practices associated with enterprise culture. A framework for analysing and making sense of the forms of response to enterprise culture is applied to the responses. Four forms of possible response are proposed and discussed in the context of the data. Follow up interviews were conducted in November-December 1997 and the findings of these interviews are discussed in Chapter 6. A particular emphasis in these interviews was on any changes in the lexicon of practice and indications of a change in the impact of discourse and practices associated with enterprise culture. The forms of response suggested in the framework outlined in Chapter 5 are discussed in the light of any movement in the responses of participants in the study. The implications of the findings are discussed in the context of the framework of responses or forms of embrace of enterprise culture analysed in earlier chapters. Finally, in Chapter 7, the potential for community development as a form of practice to transcend or at least accommodate the impact of enterprise culture through strategic forms of embrace is discussed and possible strategies based on the research that may assist in the development of this response are proposed.

Implementation of clinical practice guidelines using simulation in education

Background: Underpinning the Department of Human Services (DHS) “Future directions for Victoria’s maternity services” strategy in Victoria, are the principles of achieving the right balance between primary level care and access to appropriate levels of medical care by making the best use of the complementary skills of midwives, GPs and obstetricians. Planning new models of care have exposed a need to upskill many clinicians in providing evidence based pregnancy care. A statewide education program conducts 1 day workshops to multidisciplinary forums in Victoria. The program content is developed with each service and simulation activities are incorporated in the workshop to provide a realistic environment for practising skills related to the implementation of clinical practice guidelines.

Method: Post workshop surveys are completed anonymously by participants using a five point Likert scale to evaluate their experiences in peer learning, the use of simulation, reflective practice and communication skills training. Open ended responses were analysed thematically.

Results: In 2007, 14 workshops were conducted with 254 clinicians attending. The survey response rate was 80%. Participants responded ‘strongly agree’ or ‘agree’ that the workshop: enhanced their ability to access current pregnancy care research and information 193/ 204(95%), challenged them to think more broadly 192/204(94%), provided an opportunity to reflect on their communication skills during the simulation actives 197/201 (96%) and provided a valuable opportunity for observing the communication skills of their peers 197/ 201(98%).

Conclusion: Providing opportunities for peer learning in pregnancy education is valuable and the use of simulation can play an important role in overcoming barriers to implementing guidelines.

Toward new models of flexible education to enhance quality in Australian higher education

In this chapter we focus on models of flexible education as related to Australian higher education (with an argument that this is typical of developments worldwide). Moreover, Deakin University’s longstanding experience in flexible, online and distance education, as a case study of changes in Australian higher education, will be highlighted, with a particular emphasis on developments in teaching engineering and technology flexibly. To begin, we provide coverage of contemporary developments in quality enhancements in teaching and learning in Australian higher education arguing that flexible education is a key institutional response to external demands. The meanings of flexible education and blended learning are then considered and a contingency-based framework for designing flexible education outlined. The framework will consider models of flexible education design in the light of goals, the roles, needs and circumstances of teaching staff and learners, the changing technological environment, and the requirements of various external stakeholders. The focus will then move to course and unit concerns relating to flexible educational models of course design and operation as illustrated through the case of engineering and technology at Deakin. The final section will give some consideration to future directions in flexible education.

Organizational discourse and change : positions, perspectives, progress and prospects

It has been 10 years since The Journal of Applied Behavioral Science (JABS) published a special issue titled “Discourses of Organizing” (Vol. 36, No. 2, 2000) based on the then emerging field of organizational discourse. A decade on seems to be an appropriate juncture at which to reflect on the range of work produced and the general progress made and consider possible future directions. In addition to briefly taking stock of developments within the field, this opening piece provides an opportunity to introduce the subsequent articles contained in this special issue and locate them within the developing landscape of discursive contributions on organizational change. Given these broad aims, there are three main sections in this introductory article. First, the general trajectory and shifting patterns of “organizational discourse and change” contributions are considered and a way of thinking about different waves of engagement is presented. Then, in the second main section, the focus and general contribution of the articles presented in this collection are discussed. Finally, we conclude by speculating on emerging trends and the scope for further inquiry.

Enhancement of ion dissociation in polyelectrolyte gels

High conductivity in single ion conducting polymer electrolytes is still the ultimate aim for many electrochemical devices such as secondary lithium batteries. Achieving effective ion dissociation in these cases remains a challenge since the active ion tends to remain in close proximity to the backbone charge as a result of a low degree of ion dissociation. A unique aspect of this dissociation problem in polyelectrolytes is the repulsion between the backbone charges created by dissociation. One way of enhancing ion dissociation in polyelectrolyte systems is to use copolymers in which only a fraction (<20%) of the mer units are charged and where the comonomer is itself chosen to be polar and preferably to be compatible with potential solvents. We have also found that certain dissociation enhancers based on ionic liquids or boroxine ring compounds can lead to high ionic conductivity. In the cases where an ionic liquid is used as the solvent in a polyelectrolyte gel, the viscosity of the ionic liquid and its hydrophilicity are critical to achieving high conductivity. Compounds based on the dicyanamide anion appear to be very effective ionic solvents; polyelectrolyte gels incorporating such ionic liquids exhibit conductivities as high as 10⁻² S/cm at room temperature. In the case of boroxine ring dissociation enhancers, gels based on poly(lithium-2-acrylamido-2-methyl-1-propanesulfonate) and ethylene carbonate produce conductivities approaching 10⁻³ S/cm. This paper will discuss these approaches for achieving higher conductivity in polyelectrolyte materials and suggest future directions to ensure single ion transport.

Carbon nanotubes reinforced electrospun polymer nanofibres

With the rapid development in nanoscience and nanotechnology, there is an ever increasing demand for polymer fibres of diameters down to a nanometre scale having multiple functionalities. Electrospinning, as a simple and efficient nanofibre-making technology, has been used to produce polymer nanofibres for diverse applications. Electrospun nanofibres
based on polymer/carbon nanotube (CNT) composites are very attractive multifunctional nanomaterials because they combine the remarkable mechanical and electronic properties of CNTs and the confinement-enhanced CNTs alignment within the nanofibre structure, which could greatly improve the fibre mechanical, electrical and thermal properties. In this chapter, we summarise recent research progress on electrospun CNTs/polymer nanofibres, with an emphasis on fibre mechanical properties and structure-property attributes. Outlook towards the challenge and future directions in this field is also presented.

Applying the good lives model to male perpetrators of domestic violence

Domestic violence is a pervasive social problem that has devastating emotional, physical, psychological, and financial costs for individuals, families, and communities. Despite the widespread use of current intervention programmes, recent reviews have demonstrated that these have only a small impact on the reduction of recidivism. In this article, we briefly summarise the features identified in the literature that distinguish domestically violent men from those who do not engage in such behaviours. We then explore the most common interventions used to treat domestic violence offenders and discuss the limitations of these interventions, before outlining the assumptions of the Good Lives Model (GLM), a strengthbased approach to the treatment of offenders. We discuss the advantages of using the GLM compared to existing approaches and finally, we consider future directions for the use of the GLM in domestic violence interventions.