Recognising and monitoring high-level behaviours in complex spatial environments

The recognition of activities from sensory data is important in advanced surveillance systems to enable prediction of high-level goals and intentions of the target under surveillance. The problem is complicated by sensory noise and complex activity spanning large spatial and temporal extents. This paper presents a system for recognising high-level human activities from multi-camera video data in complex spatial environments. The Abstract Hidden Markov mEmory Model (AHMEM) is used to deal with noise and scalability The AHMEM is an extension of the Abstract Hidden Markov Model (AHMM) that allows us to represent a richer class of both state-dependent and context-free behaviours. The model also supports integration with low-level sensory models and efficient probabilistic inference. We present experimental results showing the ability of the system to perform real-time monitoring and recognition of complex behaviours of people from observing their trajectories within a real, complex indoor environment.

Reliability and validity of a reactive agility test for Australian football

Purpose: The aim of this study was to test the reliability and construct validity of a reactive agility test (RAT), designed for Australian Football (AF).

Methods: Study I tested the reliability of the RAT, with 20 elite junior AF players (17.44 ± 0.55 y) completing the test on two occasions separated by 1 wk. Study II tested its construct validity by comparing the performance of 60 participants (16.60 ± 0.50 y) spread over three aged-matched population groups: 20 athletes participating in a State Under-18 AF league who had represented their state at national competitions (elite), 20 athletes participating in the same league who had not represented their state (subelite), and 20 healthy males who did not play AF (controls).

Results: Test-retest reliability reported a strong correlation (0.91), with no significant difference (P = .22) between the mean results (1.74 ± 0.07 s and 1.76 ± 0.07 s) obtained (split 2+3). Nonparametric tests (Kruskal-Wallis and Mann-Whitney) revealed both AF groups performed significantly faster on all measures than the control group (ranging from P = .001 to .005), with significant differences also reported between the two AF groups (ranging from P = .001 to .046). Stepwise discriminant analyses found total time discriminated between the groups, correctly classifying 75% of the participants.

Conclusions: The RAT used within this study demonstrates evidence of reliability and construct validity. It further suggests the ability of a reactive component within agility test designs to discriminate among athletes of different competition levels, highlighting its importance within training activities.

Corporatism, crisis and contention in Sweden and Korea during the 1990s

Debate has long surrounded corporatism’s depictions of power and the state, and the rise of neoliberalism has raised even more doubts about corporatism as an analytical construct. Faltering growth and rising unemployment in Sweden and Korea after financial crises in the 1990s seemed to confirm neoliberal expectations that all varieties of corporatism (state/authoritarian and societal/democratic) are doomed to decline, and that corporatism will converge on liberalism. Closer examination of the 1990s crises suggests that Swedish and Korean institutions have transformed rather than collapsed. Corporatist institutions have been transformed by ideas about networks and governance, interaction between national and international institutions and shifting alliances among export-oriented and competition-shielded employers, private and public sector unions and citizen networks. This article argues that the ‘dynamics of contention’ can explain how these new ideas and alliances transformed regimes in Sweden and Korea and as such constitute an alternative to corporatism as an analytical construct.

Building capacity in sexuality education : The Northern Bay College experience : Report of the first phase of the sexuality education and community support (SECS) project

The Sexuality Education and Community Support (SECS) project aims to introduce a P-12 approach to sexuality education at Northern Bay P-12 College (NBC) through a collaborative partnership process between the schools within the College and local, regional, and state health and education agencies and has set out to change current sexual health education practice in the College and assist other schools in the region to do the same. The Project’s goal is a ‘sustainable, responsive, whole school, regionally consistent, best practice sexuality education’. During this first or establishment phase of the SECS project strategies have been implemented to begin the process of building capacity in sexuality education at NBC. These strategies are aimed at developing a sustainable approach during the next three and a half years.

Contemporary security and strategy

This chapter raises the following main points:
• The study of security has experienced a series of debates around the nature of the threats to security.
• The early security scholars, as distinct from those who studied strategy and warfare, took a broad approach and argued that military and non-military means could achieve security.
• During the Cold War the study of security focused on the most pressing security issue of the day – the nuclear standoff between the two superpowers.
• In the post-Cold War era the broader approach to the study of security returned to the fore and included non-state actors and non-traditional sources of insecurity.

Teaching or preaching — Max Charlesworth and religious education

In this essay I elaborate on the theoretical framework – that of Millian liberalism – that Max Charlesworth brought to many public issues, including that of the relation between education and religion. I will then apply this framework to a debate in which I have been recently involved myself: a debate around the provision of religious instruction in public schools. In the first section I expound Charlesworth’s rejection of secularism in education in a liberal pluralist state and his defence of faith-based schooling. In the second section I uncover the religious motivations behind the Victorian government’s 1950 amendments to the apparently secularist Victorian Education Act of 1872. In section three, I explore the notion of secularism more fully and suggest that the struggle between those who espouse religious instruction in state schools and those who oppose it while advocating a more general form of education about religion is a symptom of a deeper tension between liberalism and communitarianism within the culture of modernist, liberal states.

How parental and school responses to choice policies reconfigure a rural education market in Victoria, Australia

Market principles now dominate the education and social policies of many Anglophone countries, including Australia, but articulate differentially within specific contexts. Existing historical legacies, local economic and social conditions, and geographical settings interact with federal and state funding and transport policies to shape the nature of regional education markets and the choices families make in a rural school market in Australia. Through two school case studies, this article explores the effects of policy shifts on parental choice and student movement within a regional Victorian community. Informed by policy sociology, the article views the policy as a dynamic, often ad hoc process with contradictory effects. It indicates how an ensemble of federal and state funding and conveyancing policies enable some schools to develop marketing practices that reconstruct the local education market to their advantage through the introduction of transport and flexi-boarding policies. It demonstrates that education markets are not confined to urban settings and that while choice is not a new phenomenon in this rural area, federal and state funding and transport policies have reconfigured local markets and intensified the market work undertaken by schools and parents with, in this instance, unequal effects on the provision of schooling in a rural region.

Women directors on boards of Australian Real Estate Investment Trusts

Purpose – This is the first paper which aims to investigate factors that might influence the gender composition of boards of directors of Australian Real Estate Investment Trusts (A-REITs).

Design/methodology/approach – This study follows Mateos de Cabo, Gimeno and Nieto and the gender diversity literature and investigates the existence and number of women directors on the boards of directors of 37 A-REITs from 2006 to 2011.

Findings – There is evidence that larger (by market capitalization) A-REITs are more likely to employ a woman director and that A-REITs with larger boards are more likely to employ a woman director and indeed more women directors. It also appears that A-REITs whose head office is in Sydney are more likely to employ a woman director and also more women directors.

Practical implications – Women seeking to be engaged as directors of A-REITs are more likely to be employed by larger A-REITs (by market capitalization), those with larger boards and those located in Sydney.

Originality/value – This paper adds to the existing literature on gender diversity by examining the factors that appear to influence the employment of women on A-REIT Boards.

Recent progress in the development and use of organic ionic plastic crystal electrolytes

Significant progress has been made recently in the development of Organic Ionic Plastic Crystals (OIPCs), a unique family of solid state electrolytes with applications in electrochemical devices such as lithium batteries and dye-sensitised solar cells. The negligible volatility of OIPCs renders them more suitable than molecular species for long-term device use, while the high thermal and electrochemical stability of many OIPCs fulfils an essential requirement for solid state electrolytes for many device applications. However, the complex mechanisms of conduction through these materials, both in their pure state and in the presence of a small amount of a second component (such as lithium salts to enable their use in lithium batteries) are still not fully understood. At the same time, the range of anions and cations utilised in the synthesis of plastic crystal phases continues to increase. This perspective concentrates on recent research into both fundamental and device-oriented aspects of these materials. Important fundamental understanding of the physical properties and transport mechanisms of different OIPCs has been achieved through use of techniques including variable temperature solid-state NMR and crystallographic analysis, as well as detailed molecular dynamics simulations. In parallel, the applicability of these materials as electrolytes for dye-sensitised solar cells and lithium batteries is being more widely demonstrated. The possibility of using OIPCs as solid state electrolytes for fuel cells is also discussed.

Design and simulation of a high isolation RF MEMS shunt capacitive switch for C-K band

This paper presents a wide band RF MEMS capacitive switch. The LC resonant frequency is reduced from mm wave to X band frequencies at down-state by using a meander type membrane, with the frequency band is being increased by adding two short high impedance lines at both ends of coplanar waveguide (CPW). Moreover, this acts as T-match circuit in up-state position and improves the matching. Simulation results demonstrate that the capacitance ratio reduces from 50 to 21.4, S21 and S11 are less than −10dB for the entire frequency band at down-state and up-state. Also, a comprehensive and complete electric model of the switch is proposed and simulation results agree well with the characteristics of the physical structure of the MEMS switch. Vpull-in and Vpull-out of this switch are 8.1V and 0.3V, respectively.

Development in fragile states and situations: theory and critique

This chapter examines the evolution of ‘fragile’ and ‘failed’ state terminology noting the background to the ideas and examining the theorisation around the concepts, before surveying the literature on development in ‘fragile’ and ‘failed’ states in some depth. The OECD Principles for Good International Engagement in Fragile States and Situations are examined in particular, together with the follow-up OECD fragile state evaluations and related literature, as the primary and often normative guidance on development in ‘fragile’ or ‘failed’ states. A range of alternatives and critiques are explored. This chapter, therefore, sets the literature and theory in place as a backdrop for the diversity of case studies presented in Part II of this volume.

Protonated melonate Ca[HC6N7(NCN)3]·7H2O – synthesis, crystal structure, and thermal properties

Calcium hydrogenmelonate heptahydrate Ca[HC6N7(NCN)3]·7H2O was obtained by metathesis reaction in aqueous solution. The structure of the molecular salt was elucidated by single-crystal X-ray diffraction. The crystal structure consists of alternating layers of planar monopronated melonate ions, Ca2+ and crystal water molecules. The anions of adjacent layers are staggered so that no π–π stacking occurs. The melonate entities are interconnected by hydrogen bonds within and between the layers. Ca[HC6N7(NCN)3]·7H2O was investigated by solid-state NMR and FTIR spectroscopy, TG and DTA measurements.

Poly(triazine imide) with intercalation of Lithium and ChlorideiIons [(C3N3)2(NHxLi1−x)3⋅LiCl]: A Crystalline 2D Carbon Nitride network

Poly(triazine imide) with intercalation of lithium and chloride ions (PTI/Li+Cl−) was synthesized by temperature-induced condensation of dicyandiamide in a eutectic mixture of lithium chloride and potassium chloride as solvent. By using this ionothermal approach the well-known problem of insufficient crystallinity of carbon nitride (CN) condensation products could be overcome. The structural characterization of PTI/Li+Cl− resulted from a complementary approach using spectroscopic methods as well as different diffraction techniques. Due to the high crystallinity of PTI/Li+Cl− a structure solution from both powder X-ray and electron diffraction patterns using direct methods was possible; this yielded a triazine-based structure model, in contrast to the proposed fully condensed heptazine-based structure that has been reported recently. Further information from solid-state NMR and FTIR spectroscopy as well as high-resolution TEM investigations was used for Rietveld refinement with a goodness-of-fit (χ2) of 5.035 and wRp=0.05937. PTI/Li+Cl− (P63cm (no. 185); a=846.82(10), c=675.02(9) pm) is a 2D network composed of essentially planar layers made up from imide-bridged triazine units. Voids in these layers are stacked upon each other forming channels running parallel to [001], filled with Li+ and Cl− ions. The presence of salt ions in the nanocrystallites as well as the existence of sp2-hybridized carbon and nitrogen atoms typical of graphitic structures was confirmed by electron energy-loss spectroscopy (EELS) measurements. Solid-state NMR spectroscopy investigations using 15N-labeled PTI/Li+Cl− proved the absence of heptazine building blocks and NH2 groups and corroborated the highly condensed, triazine-based structure model.

Controlled modification of the inorganic and organic bricks in an Al-based MOF by direct and post-synthetic synthesis routes

Four new porous CAU-1 derivatives CAU-1–NH2 ([Al4(OH)2(OCH3)4(BDC–NH2)3]·xH2O, BDC–NH22− = aminoterephthalate), CAU-1–NH2(OH) ([Al4(OH)6(BDC–NH2)3]·xH2O), CAU-1–NHCH3 ([Al4(OH)2(OCH3)4(BDC–NHCH3)3]·xH2O) and CAU-1–NHCOCH3 ([Al4(OH)2(OCH3)4(BDC–NHCOCH3)3]·xH2O) all containing an octameric [Al8(OH)4+y(OCH3)8−y]12+ cluster, with y = 0–8, have been obtained by MW-assisted synthesis and post-synthetic modification. The inorganic as well as the organic unit can be modified. Heteronuclear 1H–15N, 1H–13C and homonuclear 1H–1H connectivities determined by solid-state NMR spectroscopy prove the methylation of the NH2 groups when conventional heating is used. Varying reaction times and temperatures allow controlling the degree of methylation of the amino groups. Short reaction times lead to non-methylated CAU-1 (CAU-1–NH2), while longer reaction times result in CAU-1–NHCH3. CAU-1–NH2 can be modified chemically by using acetic anhydride, and the acetamide derivative CAU-1–NHCOCH3 is obtained. Thermal treatment permits us to change the composition of the Al-containing unit. Methoxy groups are gradually exchanged by hydroxy groups at 190 °C in air. Solid-state NMR spectra unequivocally demonstrate the presence of the amino groups, as well as the successful post-synthetic modification. Furthermore 1H–1H correlation spectra using homonuclear decoupling allow the orientation of the NHCOCH3 groups within the pores to be unravelled. The influence of time and temperature on the synthesis of CAU-1 was studied by X-ray powder diffraction, elemental analyses, and 1H liquid-state NMR and IR spectroscopy.