72 resultados para cache coherence protocols


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Finding practical ways to robustly estimate abundance or density trends in threatened species is a key facet for effective conservation management. Further identifying less expensive monitoring methods that provide adequate data for robust population density estimates can facilitate increased investment into other conservation initiatives needed for species recovery. Here we evaluated and compared inference-and cost-effectiveness criteria for three field monitoring-density estimation protocols to improve conservation activities for the threatened Komodo dragon (Varanus komodoensis). We undertook line-transect counts, cage trapping and camera monitoring surveys for Komodo dragons at 11 sites within protected areas in Eastern Indonesia to collect data to estimate density using distance sampling methods or the Royle-Nichols abundance induced heterogeneity model. Distance sampling estimates were considered poor due to large confidence intervals, a high coefficient of variation and that false absences were obtained in 45 % of sites where other monitoring methods detected lizards present. The Royle-Nichols model using presence/absence data obtained from cage trapping and camera monitoring produced highly correlated density estimates, obtained similar measures of precision and recorded no false absences in data collation. However because costs associated with camera monitoring were considerably less than cage trapping methods, albeit marginally more expensive than distance sampling, better inference from this method is advocated for ongoing population monitoring of Komodo dragons. Further the cost-savings achieved by adopting this field monitoring method could facilitate increased expenditure on alternative management strategies that could help address current declines in two Komodo dragon populations.

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Control of introduced predators to mitigate biodiversity impacts is a pressing conservation challenge. Across Australia feral cats (Felis catus) are a major threat to terrestrial biodiversity. Currently feral cat control is hindered by the limited utility of existing predator baiting methods. Further proposed control methods include use of the novel poison para-aminopropiophenone (PAPP) which may present a hazard to some native animal populations. Here we used experimental and predictive approaches to evaluate feral cat bait take by a large native Australian predatory reptile the Lace monitor (Varanus varius). These lizards would be expected to readily detect, ingest and consume a lethal dose (depending on toxin) from surface-laid baits intended for feral cat control if a precautionary approach was not adopted when baiting. We modelled V. varius bait take using experimental and predictive biophysical modelling approaches to evaluate temporal effects of climate variables on V. varius activity and hence potential for bait removal. Finally we conducted a pre-PAPP baiting site occupancy assessment of V. varius within Wilson Promontory National Park (WPNP) to provide a basis for monitoring any longer term population effects of cat baiting. V. varius removed 7 % of deployed baits from 73 % of bait stations across another study area in Far Eastern Victoria. Daily bait removal was positively correlated with maximum temperature and solar radiation. Biophysical modelling for Far Eastern Victoria predicted that maximum temperatures <19.5 °C prevented V. varius activity and hence opportunity for bait removal. V. varius in WPNP was undetectable suggesting aerial baiting posed limited hazard to this species at this location. Depending how climate influences annual activity patterns and the specific poison, surface-laid baits could pose a significant mortality risk to V. varius. However, use of biophysical models to predict periods of V. varius inactivity may provide a novel means to reduce non-target bait take by this predator.

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Hybrid storage systems that consist of flash-based solid state drives (SSDs) and traditional disks are now widely used. In hybrid storage systems, there exists a two-level cache hierarchy that regard dynamic random access memory (DRAM) as the first level cache and SSD as the second level cache for disk storage. However, this two-level cache hierarchy typically uses independent cache replacement policies for each level, which makes cache resource management inefficient and reduces system performance. In this paper, we propose a novel adaptive multi-level cache (AMC) replacement algorithm in hybrid storage systems. The AMC algorithm adaptively adjusts cache blocks between DRAM and SSD cache levels using an integrated solution. AMC uses combined selective promote and demote operations to dynamically determine the level in which the blocks are to be cached. In this manner, the AMC algorithm achieves multi-level cache exclusiveness and makes cache resource management more efficient. By using real-life storage traces, our evaluation shows the proposed algorithm improves hybrid multi-level cache performance and also increases the SSD lifetime compared with traditional multi-level cache replacement algorithms.

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The popularity of smartphones has led to an increasing demand for health apps. As a result, the healthcare industry is embracing mobile technology and the security of mHealth is essential in protecting patient’s user data and WBAN in a clinical setting. Breaches of security can potentially be life-threatening as someone with malicious intentions could misuse mHealth devices and user information. In this article, threats to security for mHealth networks are discussed in a layered approach addressing gaps in this emerging field of research. Suite B and Suite E, which are utilized in many security systems, including in mHealth applications, are also discussed. In this paper, the support for mHealth security will follow two approaches; protecting patient-centric systems and associated link technologies. Therefore this article is focused on the security provisioning of the communication path between the patient terminal (PT; e.g., sensors) and the monitoring devices (e.g., smartphone, data-collector).

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This study was conducted to protect security of human beings and businesses from intruders in the context of IoT which is next generation internet. We have developed a universal framework and a number of communication protocols to provide security that will make IoT cyber world safer for all t users.

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Using data from a larger study investigating the effectiveness of a structured clinical protocol to manage individuals in residential facilities who experience behavioral and psychological symptoms of dementia (BPSD), the current study investigated whether external clinical support in using the protocol with specific residents increased compliance in its use, over and above only providing a generic workshop about the protocol and management of BPSD. Results indicated that provision of the workshop, in addition to clinical support, was associated with significantly higher compliance. However, compliance was only found to be related to positive outcomes when staff received the generic workshop and not clinical support. When clinical support was provided, compliance was not related to outcomes or worse outcomes. These findings, when considered in the context of the results of the larger trial, suggest that the relationship among clinical support, compliance with BPSD protocols, and clinical outcomes for residents and staff is complex and needs further investigation.

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This paper extends the conditions of the cluster-based routing protocols in terms of general algorithm complexity of data fusion, general compressing ratio of data fusion, and network area with long distance. Corresponding three general evaluation methods to evaluate the energy efficiency of the cluster-based routing protocols such as LEACH, PEGASIS, and BCDCP are provided. Moreover, three facts are found in them: (1) High-level software energy macro model is used to compute the energy dissipation of general data fusion software and make the constant value of energy dissipation of 1-bit data fusion an especial instance. (2) Multi-hop energy efficiency is related to the radio hardware parameters and the dynamic topology of network and the above protocols do not exploit the best use of the energy efficiency of multi-hop scheme. (3) High-energy dissipation non-cluster-head nodes, whose number changes with the density of the sensor nodes in clusters, worsen the death of nodes. The numerical results of experiments reprove these discoveries. Furthermore, they provide helpful guide for improving the above routing protocols to extent their application ranges.

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Investigative interviews with alleged victims form the central plank of evidence in the prosecution of child sexual abuse. Despite interviewers being provided with a guiding framework, child sexual abuse cases are often not prosecuted because of poor-quality evidence. The purpose of this study was to elicit feedback from prosecutors about the structure and format of current interview protocols and the ways in which these could potentially be improved from an evidential perspective. Focus group discussions (ranging in length from 180 to 190 minutes) were conducted with 13 Crown prosecutors representing every jurisdiction of Australia. Thematic analysis of the focus group discussions revealed that prosecutors were supportive of the structure of interview protocols, however, concerns were raised about four of the interview elements. These elements were the oath and truth–lie competency test, the ground rules, the practice narrative and eliciting a disclosure. The prosecutors’ concerns and their implications for protocol developers and trainers are discussed.

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Increasingly, Built Environment (BE) professionals, including planner, architect and landscape architect practitioners, are becoming involved in the planning and design of projects for, and in direct consultation with Indigenous communities and their proponents. These projects range from inserting Indigenous cultural landscape analysis into planning schemes, including Indigenous protocols and aspirations in policy statements; designing cultural centres, information centres and housing; drafting cultural tourism strategies and devising cross-cultural land management plans. This entails working with Indigenous communities or their nominated representatives as stakeholders in community engagement, consultation, and planning processes. Critically, BE professionals must be able to plan and design with regard to Indigenous community’s cultural protocols, issues and values. Yet many (domestic and or international) students graduate with little or no comprehension of Indigenous knowledge systems or the protocols for engagement with the communities in which they are required to work, whether they be Australian or international Indigenous communities. Contextually, both PIA and the planning academe have struggled with coming to terms with this realm over the last 10 years. This paper will report on a recently completed Australian Government Office of Learning & Teaching (OLT) funded research project that has sought to improve opportunities to improve the knowledge and skills of tertiary students in the BE professions through the enhancement of their competency, appreciation and respect for Indigenous protocols and processes that also implicates the professional accreditation systems that these courses are accountable. It has proposed strategies and processes to expose students in the BE professions to Australian Indigenous knowledge and cultural systems and the protocols for engaging with Indigenous Australians about their rights, interests, needs and aspirations. Included in these findings is the provision of a tool that enables and offers guidance to BE tertiary students and academics how to enhance comprehension, exposure to, and knowledge and cultural systems of, Indigenous Australians. While the scope of this report is cross-BE, this paper will focus upon the planning practice, policy and academe realms.

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Objective: Despite the heterogeneity of Australian Aboriginal peoples, certain styles of relating are shared and are markedly different to the communication styles of non-Aboriginal peoples. These differences may affect the suitability of current investigative interview protocols to Australian Aboriginal children. This study aimed to qualitatively evaluate the applicability of an investigative interview protocol to Australian Aboriginal children and examine how it could be modified to better suit the communication styles in many Aboriginal communities. Method: A diverse group of 28 participants who had expertise in Aboriginal language and culture, as well as an understanding of the child investigative interview process, each partook in an in-depth semi-structured interview where they were prompted to reflect on Aboriginal language and culture with reference to a current interview protocol (in the context of sexual assault investigation). Results: Thematic analysis revealed overall support for the narrative-based structure of the interview protocol when eliciting information from Aboriginal children. A number of concerns were also identified, and these largely related to the syntax and vocabulary within the protocol, as well as the methods of questioning and building rapport with the child. Conclusions: Directions for future research and potential modifications to investigative interview protocols to better suit Aboriginal children are discussed.

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Increasingly, built environment professionals in Australia, including architect, landscape architect and planner practitioners, are becoming involved in planning and design of projects for, and in direct consultation with Indigenous communities and their proponents. Critically, built environment professionals must be able to plan and design, and demonstrate respect for Indigenous protocols, cultural issues and their community values. Yet many students graduate with little or no comprehension of Indigenous knowledge systems or the protocols for engagement with Australian or international Indigenous communities in which they are required to work. This paper reports on a recently completed Office of Learning & Teaching funded project that was designed to improve the knowledge and skills of tertiary students in the built environment professions including proposing strategies and processes to expose students in the built environment professions to Australian Indigenous knowledge systems. This is a positive beginning in a long-term decolonising project.

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This paper reviews the current status and focus of Australian Architecture programs with respect to Indigenous Knowledge and the extent to which these tertiary programs currently address reconciliation and respect to Indigenous Australians in relation to their professional institutions and accreditation policies. The paper draws upon the findings of a recently completed investigation of current teaching: Re-Casting terra nullius blindness: Empowering Indigenous Protocols and Knowledge in Australian University Built Environment Education. Three data sets from this investigation are analysed: a desktop survey of Australian Built Environment curricula; workshops with tertiary providers and students, professional practitioners and representatives of three Built Environment professional institutes; and an online survey of Australian Built Environment students (of which their discipline could be isolated) ascertaining what is currently being taught and learned and what changes would be feasible within the constraints of courses from their perspective. Detailed descriptions are also provided of pedagogic improvements informed by the project findings. The findings suggest minimal current exposure of Architecture students to Indigenous Knowledge content beyond voluntary engagement in self-chosen thesis projects and elective (including studio) subjects led by passionate but largely unsupported teachers championing Indigenous issues; a paucity of teaching echoed by practitioners and accreditors who acknowledge lack of expertise in this area across the profession. This paper discusses ways in which Indigenous Knowledge might be better acknowledged, respected and introduced to Australian Architecture students’ education. Also discussed are teaching strategies with global relevance.