216 research outputs found

    Ontological foundations of modelling security policies for analysis

    Get PDF
    Modelling of knowledge and actions in AI has advanced over the years but it is still a challenging topic due to the infamous frame problem, the inadequate formalization and the lack of automation. Some problems in cyber security such as logical vulnerability, risk assessment, policy validation etc. still require formal approach. In this paper we present the foundations of a new formal framework to address these challenges. Our approach is based on three-level formalisation: ontological, logical and analytical levels. Here we are presenting the first two levels which allow to model the security policies and provide a practical solution to the frame problem by efficient utilization of parameters as side effects. Key concepts are the situations, actions, events and rules. Our framework has potential use for analysis of a wide range of transactional systems within the financial, commercial and business domains and further work will include analytical level where we can perform vulnerability analysis of the model

    Ontological foundations for vulnerability analysis of security policies

    Get PDF
    Logical vulnerability is the breaking into a system by manipulating the rules of the system and security. We want to analyse logical vulnerabilities by validating the security policies throughout the journey. This presentation will cover the following six areas: 1. Introduction 2. Methodology 3. Ontological level: the domain model 4. Logical level: logical constraints and expert rules 5. Analytical level: accessibility, vulnerability and risks 6. Conclusion and further wor

    The Origins, Development and Evaluation of Mathematics Support Services

    Get PDF
    This article is an introductory overview of the recent expansion in the development and provision of mathe- matics support services at third level. In the last ten years the establishment of Mathematics Support and Learning Centres has increased significantly in Ireland and the UK. Most third level institutes in Ireland now supply some level of math- ematics support. We will discuss the development of these supports as well as the reasons why third level institutes have decided to introduce them. We also give an overview of how these services are evaluated and the impact that they appear to have on student retention and performance

    Landscape Preferences, Amenity, and Bushfire Risk in New South Wales, Australia

    Get PDF
    This paper examines landscape preferences of residents in amenity-rich bushfire-prone landscapes in New South Wales, Australia. Insights are provided into vegetation preferences in areas where properties neighbor large areas of native vegetation, such as national parks, or exist within a matrix of cleared and vegetated private and public land. In such areas, managing fuel loads in the proximity of houses is likely to reduce the risk of house loss and damage. Preferences for vegetation appearance and structure were related to varying fuel loads, particularly the density of understorey vegetation and larger trees. The study adopted a qualitative visual research approach, which used ranking and photo-elicitation as part of a broader interview. A visual approach aids in focusing on outcomes of fuel management interventions, for example, by using the same photo scenes to firstly derive residents’ perceptions of amenity and secondly, residents’ perceptions of bushfire risk. The results are consistent with existing research on landscape preferences; residents tend to prefer relatively open woodland or forest landscapes with good visual and physical access but with elements that provoke their interest. Overall, residents’ landscape preferences were found to be consistent with vegetation management that reduces bushfire risk to houses. The terms in which preferences were expressed provide scope for agency engagement with residents in order to facilitate management that meets amenity and hazard reduction goals on private land

    The Origins, Development and Evaluation of Mathematics Support Services

    Get PDF
    This article is an introductory overview of the recent expansion in the development and provision of mathe- matics support services at third level. In the last ten years the establishment of Mathematics Support and Learning Centres has increased significantly in Ireland and the UK. Most third level institutes in Ireland now supply some level of math- ematics support. We will discuss the development of these supports as well as the reasons why third level institutes have decided to introduce them. We also give an overview of how these services are evaluated and the impact that they appear to have on student retention and performance

    The Irish mathematics support network: its origins and progression

    Get PDF
    In this report we will present an overview of the establishment and subsequent development of the Irish Mathematics Support Network. We will briefly mention the reasons behind the foundation of the network and we will expand upon the aims and outcomes of our activities and projects in detail. We will discuss our activities in terms of our main goals; meeting the challenge of providing support for the wide range of students studying mathematics at third level and providing suitable and shared resources to help the consolidation and expansion of mathematics support services on a wide basis nationally

    ‘The oxygen of shared experience’: exploring social support processes within peer support groups for carers of people with non-memory-led and inherited dementias

    Get PDF
    OBJECTIVES: To explore support processes and behaviours taking place during online peer support groups for family carers of people living with rare, non-memory-led and inherited dementias (PLWRD). METHODS: Twenty-five family carers of PLWRD participated in a series of ongoing online peer support groups on the theme of 'Independence and Identity'. Transcripts from 16 sessions were analysed using qualitative directed content analysis with a coding framework informed by Cutrona & Suhr's (2004) Social Support Behaviour Code (SSBC). RESULTS: Most of the social support behaviours outlined in the SSBC were identified within the sessions, along with two novel social support categories - 'Experiential Support' and 'Community Support' - and novel support behaviours including 'Advocacy and Collective Action' and 'Uses Humour'. The SSBC code 'Relationship' appeared to be of central importance. CONCLUSIONS: This study sheds light on the unique challenges of the caring context for those affected by non-memory-led and inherited dementias and the significant contributions carers can offer to, and receive from, peers in similar situations. It highlights the importance of services which recognise the value of the informational and emotional expertise of carers of PLWRD and encourages the continued development and delivery of tailored support for these populations

    How do care home staff understand, manage and respond to agitation in people with dementia? A qualitative study

    Get PDF
    Objectives: Little is known about how care home staff understand and respond to distress in residents living with dementia labelled as agitation. The aim of this study was to describe how care home staff understand and respond to agitation and the factors that determine how it is managed. Design: We conducted a qualitative thematic analysis. Setting: We recruited staff from six care homes in South East England including residential and nursing homes of differing sizes run by both the private and charity sector and located in urban and rural areas. Participants: We interviewed 25 care home staff using purposive sampling to include staff of either sex, differing age, ethnicity, nationality and with different roles and experience. Results: We identified four overarching themes: (1) behaviours expressing unmet need; (2) staff emotional responses to agitation; (3) understanding the individual helps and (4) constraints on staff responses. Staff struggled with the paradox of trying to connect with the personhood of residents while seeing the person as separate to and, therefore, not responsible for their behaviours. Staff often felt powerless, frightened and overwhelmed, and their responses were constrained by care home structures, processes and a culture of fear and scrutiny. Conclusions: Responding to agitation expressed by residents was not a linear process and staff faced tensions and dilemmas in deciding how to respond, especially when initial strategies were unsuccessful or when attempts to respond to residents’ needs were inhibited by structural and procedural constraints in the care home. Future trials of psychosocial interventions should support staff to identify and respond to residents’ unmet needs and include how staff can look after themselves
    • 

    corecore