Статті в журналах з теми "Multiple disjoint supports"

On-demand multipath routing in a wireless ad hoc network is effective in achieving load balancing over the network and in improving the degree of resilience to mobility. In this paper, the salvage capable opportunistic node-disjoint multipath routing (SNMR) protocol is proposed, which forms multiple routes for data transmission and supports packet salvaging with minimum overhead. The proposed mechanism constructs a primary path and a node-disjoint backup path together with alternative paths for the intermediate nodes in the primary path. It can be achieved by considering the reverse route back to the source stored in the route cache and the primary path information compressed by a Bloom filter. Our protocol presents higher capability in packet salvaging and lower overhead in forming multiple routes. Simulation results show that SNMR outperforms the compared protocols in terms of packet delivery ratio, normalized routing load, and throughput.

Federated learning (FL) enables multiple data owners to collaboratively train machine learning (ML) models without disclosing their raw data. In the vertical federated learning (VFL) setting, the collaborating parties have data from the same set of users but with disjoint attributes. After constructing the VFL models, the parties deploy the models in production systems to infer prediction requests. In practice, the prediction output itself may not be convincing for party users to make the decisions, especially in high-stakes applications. Model interpretability is therefore essential to provide meaningful insights and better comprehension on the prediction output. In this paper, we propose Falcon, a novel privacy-preserving and interpretable VFL system. First, Falcon supports VFL training and prediction with strong and efficient privacy protection for a wide range of ML models, including linear regression, logistic regression, and multi-layer perceptron. The protection is achieved by a hybrid strategy of threshold partially homomorphic encryption (PHE) and additive secret sharing scheme (SSS), ensuring no intermediate information disclosure. Second, Falcon facilitates understanding of VFL model predictions by a flexible and privacy-preserving interpretability framework, which enables the implementation of state-of-the-art interpretable methods in a decentralized setting. Third, Falcon supports efficient data parallelism of VFL tasks and optimizes the parallelism factors to reduce the overall execution time. Falcon is fully implemented, and on which, we conduct extensive experiments using six real-world and multiple synthetic datasets. The results demonstrate that Falcon achieves comparable accuracy to non-private algorithms and outperforms three secure baselines in terms of efficiency.

Abstract. In a world driven by the Internet and the readily accessible information it provides, there exists a high demand to easily discover and collect vast amounts of data available over several scientific domains and numerous data types. To add to the complexity, data is not only available through a plethora of data sources within disparate systems but also represents differing scales of space and time. One clear divide that exists in the world of information science and technology is the disjoint relationship between hydrologic and atmospheric science information. These worlds have long been split between observed time series at discrete geographical features in hydrologic science and modeled or remotely sensed coverages or grids over continuous space and time domains in atmospheric science. As more information becomes widely available through the Web, data are being served and published as Web services using standardized implementations and encodings. This paper illustrates a framework that utilizes Sensor Observation Services, Web Feature Services, Web Coverage Services, Catalog Services for the Web and GI-cat Services to index and discover data offered through different classes of information. This services infrastructure supports multiple servers of time series and gridded information, which can be searched through multiple portals, using a common set of time, space and concept query filters.

The modern history of many-valuedness starts with Lukasiewicz’s construction of three-valued logic. This pioneering, philosophically motivated and matrix based construction, first presented in 1918, was in 1922 extended to n-valued cases, including two infinite ones. Soon several constructions of many-valued logic appeared and the history of the topic became rich and interesting. However, as it is widely known, the problem of interpretation of multiple values is still among vexed questions of contemporary logic. With the paper, which essentially groups my earlier settlements, from [3], [4], [7] and [8], I intend to put a new thread into discussion on the nature of logical many-valuedness. The topics, touched upon, are: matrices, tautological and non-tautological many-valuedness, Tarski’s structural consequence and the Lindenbaum–Wojcicki completeness result, which supports the Suszko’s claim on logical two-valuedness of any structural logic. Consequently, two facets of many-valuedness — referential and inferential — are unravelled. The first, fits the standard approach and it results in multiplication of semantic correlates of sentences, and not logical values in a proper sense. The second many-valuedness is a metalogical property of inference and refers to partition of the matrix universe into more than two disjoint subsets, used in the definition of inference.

Considering the Internet of Things (IoT) impact in today’s world, uninterrupted service is essential, and recovery has received more attention than ever before. Fault-tolerance (FT) is an essential aspect of network resilience. Fault-tolerance mechanisms are required to ensure high availability and high reliability in systems. The advent of software-defined networking (SDN) in the IoT plays a significant role in providing a reliable communication platform. This paper proposes a data plane fault-tolerant architecture using the concepts of software-defined networks for IoT environments. In this work, a mathematical model called Shared Risk Link Group (SRLG) calculates redundant paths as the primary and backup non-overlapping paths between network equipment. In addition to the fault tolerance, service quality was considered in the proposed schemes. Putting the percentage of link bandwidth usage and the rate of link delay in calculating link costs makes it possible to calculate two completely non-overlapping paths with the best condition. We compare our two proposed dynamic schemes with the hybrid disjoint paths (Hybrid_DP) method and our previous work. IoT developments, wireless and wired equipment are now used in many industrial and commercial applications, so the proposed hybrid dynamic method supports both wired and wireless devices; furthermore multiple link failures will be supported in the two proposed dynamic schemes. Simulation results indicate that, while reducing the error recovery time, the two proposed dynamic designs lead to improved service quality parameters such as packet loss and delay compared to the Hybrid_DP method. The results show that in case of a link failure in the network, the proposed hybrid dynamic scheme’s recovery time is approximately 12 ms. Furthermore, in the proposed hybrid dynamic scheme, on average, the recovery time, the packet loss, and the delay improved by 22.39%, 8.2%, 5.66%, compared to the Hybrid_DP method, respectively.

This is a basic review of how to bin variables in Stata, meaning how to divide their range or support into disjoint intervals. I survey rounding functions with emphasis on floor and ceiling functions as tools to get clearly defined intervals of equal width. Using a specific display format is usually a better idea than rounding to multiples of a fraction. Quantile binning is popular in several fields. I give tips and tricks on how to produce such bins and also on how to show their limitations. Experimentation with the display command or Mata is a good way to learn about functions and to test binning rules.

According to the Bureau of Labor Statistics, throughout their careers, college graduates change multiple jobs and several careers, often remotely related to one another or to their major field of study. Experts project that the majority of newly created jobs requiring college education would involve extensive and prolonged on-the-job training of new hires, with soft skills gaining more prominence as determinants of professional success. Conversely, over the past several decades, higher education has followed a trend of compartmentalization of college education into narrowly defined disjointed disciplines each with a strict degree program. Such one-size-fits-all educational programs are unlikely to prepare prospective professionals for gainful employment in the emerging economy considering the new success indicators. This study presents a comparative exploratory analysis of accounting students career preferences by gender, age, grade point average, and academic classification. The study reveals notable differences in career preferences among students enrolled in the same academic program due to differences in gender, age, and academic classification.

Climate change threatens coastal areas, posing significant risks to natural and human systems, including coastal erosion and inundation. This paper presents a multi-risk approach integrating multiple climate-related hazards and exposure and vulnerability factors across different spatial units and temporal scales. The multi-hazard assessment employs an influence matrix to analyze the relationships among hazards (sea-level rise, coastal erosion, and storm surge) and their disjoint probability. The multi-vulnerability considers the susceptibility of the exposed receptors (wetlands, beaches, and urban areas) to different hazards based on multiple indicators (dunes, shoreline evolution, and urbanization rate). The methodology was applied in the North Adriatic coast, producing a ranking of multi-hazard risks by means of GIS maps and statistics. The results highlight that the higher multi-hazard score (meaning presence of all investigated hazards) is near the coastline while multi-vulnerability is relatively high in the whole case study, especially for beaches, wetlands, protected areas, and river mouths. The overall multi-risk score presents a trend similar to multi-hazard and shows that beaches is the receptor most affected by multiple risks (60% of surface in the higher multi-risk classes). Risk statistics were developed for coastal municipalities and local stakeholders to support the setting of adaptation priorities and coastal zone management plans.

With a growing demand of multimedia communication over MANETs, to support quality of service (QoS), the MAC standards such as 802.11a/b/g operate with multiple data rates to efficiently utilize the limited resources. Since the wireless channel is shared among the neighbors in MANETs, determining delay-sensitive and congestion-aware routes using the IEEE 802.11 MAC is still a challenging problem. This paper proposes a novel cross-layer approach called congestion-adaptive and delay-sensitive multirate (CADM) routing protocol in MANETs. The CADM protocol exploits the cross-layer interaction between the network layer, MAC, and physical layer. The CADM accesses the correlation between data rate, congestion metric, and MAC delay in delay-sensitive applications to provide enhanced network efficiency in MANETs. The protocol discovers multiple node-disjoint routes and facilitates optimal data rates between the links based on the estimated delay to admit a flow with the certain delay requirement in multirate MANETs. The proposed CADM protocol discovers the route through less congested nodes and also actively handles the congestion if it occurs. The performance of the CADM protocol is comprehensively assessed through the simulation, which highlights the advantages of our cross-layer mechanism.

Multi-Viewer Display Environments (MVDE) provide unique opportunities to present personalized information to several users concurrently in the same physical display space. MVDEs can support correct 3D visualizations to multiple users, present correctly oriented text and symbols to all viewers and allow individually chosen subsets of information in a shared context. MVDEs aim at supporting collaborative visual analysis, and when used to visualize disjoint information in partitioned visualizations they even necessitate collaboration. When solving visual tasks collaboratively in a MVDE, overall performance is affected not only by the inherent effects of the graphical presentation but also by the interaction between the collaborating users. We present results from an empirical study where we compared views with lack of shared visual references in disjoint sets of information to views with mutually shared information. Potential benefits of 2D and 3D visualizations in a collaborative task were investigated and the effects of partitioning visualizations both in terms of task performance, interaction behavior and clutter reduction. In our study of a collaborative task that required only a minimum of information to be shared, we found that partitioned views with a lack of shared visual references were significantly less efficient than integrated views. However, the study showed that subjects were equally capable of solving the task at low error levels in partitioned and integrated views. An explorative analysis revealed that the amount of visual clutter was reduced heavily in partitioned visualization, whereas verbal and deictic communication between subjects increased. It also showed that the type of the visualization (2D/3D) affects interaction behavior strongly. An interesting result is that collaboration on complex geo-time visualizations is actually as efficient in 2D as in 3D.

Background. The complex nature of late-stage Parkinson’s requires multiagency support and leads to an increased burden on family members who assume a multiplicity of responsibilities. The aim of this study is to further understand the lived experiences of family-caregivers and their perception of, and satisfaction with, service provision. Methods. This qualitative substudy was a part of the European multicentre Care of Late-Stage Parkinsonism (CLaSP) project. Purposive sampling resulted in a sample of eleven family-caregivers of people with late-stage Parkinson’s, who were interviewed using semistructured open-ended questions. Thematic analysis followed. Findings. Three overarching themes were developed from the data: ensuring continuous support is vital to providing care at home, perceiving unmet service provision needs, and advocating and co-ordinating all aspects of care take their toll. These themes include not only experience of services that caregivers find supportive in order to deliver care but also of disjointed care between multiple agencies, a perceived lack of Parkinson’s expertise, and there was a lack of anticipatory future planning. The constancy and scope of the family-caregiver role is described, including the need to project manage multiple aspects of care with multiple agencies, to be an advocate, and to assume new roles such as managing finances. Multiple losses were reported, which in part was mitigated by gaining expertise through information and support from professionals and organised and informal support. Conclusion. The intricacies and consequences of the family-caregivers’ role and their experience of service provision indicate the need to acknowledge and consider their role and needs, fully involve them in consultations and provide information and joined-up support to improve their well-being, and ensure their continuous significant contribution to the ongoing care of the person with Parkinson’s.

Abstract: Currently, the utilization of WMSNs in different real-time and non-real-time applications requires an excessive amount of bandwidth for reliable data delivery. The unique features of WMSNs are significantly challenging in satisfying the QoS requirements in such application-specific environments and balancing the traffic load among the devices. The provision of reliable multipath routing is a cornerstone in fulfilling the QoS requirements of WMSNs. Selecting multiple optimal paths between a source and destination based on peculiar routing metrics enhances the performance of QoS routing. Generally, routing protocols exploit several routing metrics, such as delay, remaining energy of nodes, hop count, available bandwidth, and packet loss rate in path selection to attain high reliability in data delivery. Many existing routing protocols only consider the network layer parameters, whereas it lacks focus on the data link and physical layer parameters, which creates a severe impact on the degradation of QoS. In addition to that, varying bandwidth channels create interference in multimedia data delivery and degrade the network performance. Designing a multipath routing protocol by considering cross-layer parameters offer a promising solution to optimize the WMSN performance. In cross-layer design, diverse protocol layers support the routing decisions adaptively by perceiving the dynamic characteristics of the wireless medium, resulting in fair use of scarce resources with high QoS. A Cross-Layer Based QoS Aware Load-Balancing Multipath Routing Protocol over Wireless Multimedia Sensor Networks was the goal of the study's five design objectives. The study and analysis of QoS and cross-layer-based routing algorithms for WMSNs was the initial goal. Secondly, a Deep Learning prioritization-based packet classifier to divide traffic according to priority. To ensure fair resource consumption and distribution of multimedia traffic, the third goal was to design and create a cross-layer optimizer model for optimal multiple disjoint route selection using machine learning techniques. The development of a cutting-edge channel-scheduling algorithm was goal four. It was designed to efficiently assign low-interference channels to communication devices in order to lower the packet drop rate in real-time packet delivery. Last but not least, a security method for Wireless Multimedia Sensor Networks' Cross-Layer based multipath routing protocol.

Abstract Background Infectious endocarditis is associated with substantial in-patient mortality of 15-20%. Effective management requires coordination between multiple medical and surgical subspecialties which can often lead to disjointed care. Previous European studies have identified multidisciplinary endocarditis teams as a tool for reducing endocarditis mortality. Methods The University of Michigan Multidisciplinary Endocarditis Team was formed on May 3rd, 2018. The group developed an evidence-based algorithm for management of endocarditis that was used to provide recommendations for hospitalized patients over a 1-year period. Mortality outcomes were then retroactively assessed and compared to a historical control that was identified using an internal research tool. Figure 1 Table 1 Results Between June 14th, 2018 and June 13th, 2019 the team provided guideline-based recommendations on 56 patients with Duke Criteria definite endocarditis and at least 1 American Heart Association indication for surgery. The historical control included 68 patients with definite endocarditis and surgical indications admitted between July 1st, 2014 to June 30th, 2015. In-hospital mortality decreased significantly from 29.4% in 2014-2015 to 7.1% in 2018-2019 (p< 0.0001). There was a non-significant increase in the rate of surgical intervention after implementation of the team (41.2% vs 55.4%; p=0.12). Table 2 Table 3 Table 4 Conclusion Implementation of a multidisciplinary endocarditis team was associated with a significant 1-year decrease in all-cause in-hospital mortality for patients with definite endocarditis and surgical indications. In conjunction with previous studies demonstrating their effectiveness, this data supports that widespread adoption of endocarditis teams in North America has the potential to improve outcomes for this patient population. Table 5 Disclosures All Authors: No reported disclosures

Qualitative research is increasingly being integrated within the development and evaluation phases of trials of complex health interventions. Qualitative research can complement effectiveness data and provide insights around how context and implementation impact the results of the trial and to what extent interventions fit implementation contexts after evaluation. Several qualitative studies have been conducted at different stages of trials of mental health and psychosocial support interventions for populations affected by adversity such as armed conflict and disasters. However, these qualitative components are usually implemented as disjointed components within the trial. The current protocol aims to provide a shared framework detailing the qualitative components of the CHANGE project trial: a program of work to address alcohol misuse and associated mental health comorbidities among conflict-affected populations in Uganda and Ukraine. In particular, the objectives of the current protocol are (i) to identify the specific qualitative questions and methods that will be undertaken in CHANGE; (ii) characterize the different methodological approaches to analyzing the data; and (iii) explain how each qualitative component within the different work-packages will cumulatively add value to each other over the duration of the CHANGE project. The current protocol will represent a useful template for the integration of serial qualitative research components within complex health interventions in humanitarian settings. Each qualitative components described will undergo formal ethics approval by ethics boards in the United Kingdom, Uganda, and Ukraine. Multiple mechanisms will be in place to ensure rigor and trustworthiness of the research by meeting the criteria of credibility, transferability, dependability, and confirmability.

The state of the art practice in robotics planning is to script behaviors manually, where each behavior is typically generated using trajectory optimization. However, in order for robots to be able to act robustly and adapt to novel situations, they need to plan these activity sequences autonomously. Since the conditions and effects of these behaviors are tightly coupled through time, state and control variables, many problems require that the tasks of activity planning and trajectory optimization are considered together. There are two key issues underlying effective hybrid activity and trajectory planning: the sufficiently accurate modeling of robot dynamics and the capability of planning over long horizons. Hybrid activity and trajectory planners that employ mixed integer programming within a discrete time formulation are able to accurately model complex dynamics for robot vehicles, but are often restricted to relatively short horizons. On the other hand, current hybrid activity planners that employ continuous time formulations can handle longer horizons but they only allow actions to have continuous effects with constant rate of change, and restrict the allowed state constraints to linear inequalities. This is insufficient for many robotic applications and it greatly limits the expressivity of the problems that these approaches can solve. In this work we present the ScottyActivity planner, that is able to generate practical hybrid activity and motion plans over long horizons by employing recent methods in convex optimization combined with methods for planning with relaxed plan graphs and heuristic forward search. Unlike other continuous time planners, ScottyActivity can solve a broad class of robotic planning problems by supporting convex quadratic constraints on state variables and control variables that are jointly constrained and that affect multiple state variables simultaneously. In order to support planning over long horizons, ScottyActivity does not resort to time, state or control variable discretization. While straightforward formulations of consistency checks are not convex and do not scale, we present an efficient convex formulation, in the form of a Second Order Cone Program (SOCP), that is very fast to solve. We also introduce several new realistic domains that demonstrate the capabilities and scalability of our approach, and their simplified linear versions, that we use to compare with other state of the art planners. This work demonstrates the power of integrating advanced convex optimization techniques with discrete search methods and paves the way for extensions dealing with non-convex disjoint constraints, such as obstacle avoidance.

West Nile virus (WNV) is a globally distributed mosquito-borne virus of great public health concern. The number of WNV human cases and mosquito infection patterns vary in space and time. Many statistical models have been developed to understand and predict WNV geographic and temporal dynamics. However, these modeling efforts have been disjointed with little model comparison and inconsistent validation. In this paper, we describe a framework to unify and standardize WNV modeling efforts nationwide. WNV risk, detection, or warning models for this review were solicited from active research groups working in different regions of the United States. A total of 13 models were selected and described. The spatial and temporal scales of each model were compared to guide the timing and the locations for mosquito and virus surveillance, to support mosquito vector control decisions, and to assist in conducting public health outreach campaigns at multiple scales of decision-making. Our overarching goal is to bridge the existing gap between model development, which is usually conducted as an academic exercise, and practical model applications, which occur at state, tribal, local, or territorial public health and mosquito control agency levels. The proposed model assessment and comparison framework helps clarify the value of individual models for decision-making and identifies the appropriate temporal and spatial scope of each model. This qualitative evaluation clearly identifies gaps in linking models to applied decisions and sets the stage for a quantitative comparison of models. Specifically, whereas many coarse-grained models (county resolution or greater) have been developed, the greatest need is for fine-grained, short-term planning models (m–km, days–weeks) that remain scarce. We further recommend quantifying the value of information for each decision to identify decisions that would benefit most from model input.

ObjectivesIn the UK, over 20% of stroke survivors leave hospital with severe disability. Limited evidence-based clinical guidance is available to support the rehabilitation of these individuals. Our previous research has focused on establishing consensus regarding the core components of home-based rehabilitation for this under investigated group. This study explores the barriers of providing rehabilitation and identifies strategies to overcome them.DesignThree focus group interviews were conducted with n=20. The context coding framework was employed to organise the transcribed data and to facilitate inductive and deductive analysis and synthesis.SettingOnline, MSTeams, UK.ParticipantsA purposive sample of 20 National Health Service clinical staff participants, from 3 multidisciplinary teams providing home-based stroke rehabilitation for this population (n=7, 6 and 7).ResultsHigh levels of need were reported across multiple domains for survivors including continence, communication and physical function. Interventions often required multiagency collaboration in order to optimise the available resources and specialist skills. There was lack of clarity regarding who was ultimately responsible for providing components of rehabilitation for stroke survivors with severe disability. Teams provide rehabilitation for this population but are insufficiently commissioned or resourced to fully meet their needs. In-complete and disjointed pathways with resultant healthcare inequalities were commonly reported. Teams used a variety of strategies to overcome these barriers and optimise rehabilitation opportunities. These included upskilling a diverse range of partners to capitalise on the skills and resources across health, social care and voluntary sector boundaries employing multiagency collaboration. Teams established and engaged networks of stakeholders in order to advocate on behalf of stroke survivors.ConclusionsCollaboration and partnership working is important in the delivery of rehabilitation for stroke survivors with severe disability. Commissioners need to be aware that cross-agency multidisciplinary expertise is required, if rehabilitation opportunities are to be realised and existing health inequalities addressed.

To develop a more complete understanding of the ecological factors that regulate crop productivity, we tested the relative predictive power of yield models driven by five predictor variables: wheat and wild oat density, nitrogen and herbicide rate, and growing-season precipitation. Existing data sets were collected and used in a meta-analysis of the ability of at least two predictor variables to explain variations in wheat yield. Yield responses were asymptotic with increasing crop and weed density; however, asymptotic trends were lacking as herbicide and fertilizer levels were increased. Based on the independent field data, the three best-fitting models (in order) from the candidate set of models were a multiple regression equation that included all five predictor variables (R2= 0.71), a double-hyperbolic equation including three input predictor variables (R2= 0.63), and a nonlinear model including all five predictor variables (R2= 0.56). The double-hyperbolic, three-predictor model, which did not include herbicide and fertilizer influence on yield, performed slightly better than the five-variable nonlinear model including these predictors, illustrating the large amount of variation in wheat yield and the lack of concrete knowledge upon which farmers base their fertilizer and herbicide management decisions, especially when weed infestation causes competition for limited nitrogen and water. It was difficult to elucidate the ecological first principles in the noisy field data and to build effective models based on disjointed data sets, where none of the studies measured all five variables. To address this disparity, we conducted a five-variable full-factorial greenhouse experiment. Based on our five-variable greenhouse experiment, the best-fitting model was a new nonlinear equation including all five predictor variables and was shown to fit the greenhouse data better than four previously developed agronomic models with anR2of 0.66. Development of this mathematical model, through model selection and parameterization with field and greenhouse data, represents the initial step in building a decision support system for site-specific and variable-rate management of herbicide, fertilizer, and crop seeding rate that considers varying levels of available water and weed infestation.

Purpose The purpose of this study is to find a balance between tourism development and environment, on the one hand, and achieve a consensus between the profitability and development of local community, on the other hand. Design/methodology/approach The research model presented is a model of structural equations with three variables (tourists, local population and resources); these variables attempt to explain how we can develop ecotourism in Farasan Island. This study is based on a survey conducted in June 2015 of 600 Saudi citizens and residents. A list comprising 900 potential participants was created from various public sources as well as from the researchers’ professional and social contacts. The interviewees were contacted to alert them to participate in the survey. A total of 600 completed responses were received within 10 weeks of launching the survey, and these responses are analyzed and reported in the present study. The questionnaire consists of a series of questions with a five-point Likert scale for each concept in the model. The authors also used a set of demographic questions that delved into respondents’ tourism and ecotourism knowledge. Findings The results of this study indicate that the impact of local population and resources toward ecotourism is statistically significant and that they positively influence ecotourism as hypothesized. However, it was surprising that tourist was negatively related to ecotourism. This may be because the benefits of tourist are more apparent at leisure and social level rather than at the environmental level. The data were analyzed using factor, correlation and multiple regression analyses. Factor analysis was used to determine the dimensionality of each construct. The reliability and validity of the constructs resulting from the factor analysis were evaluated before they were used in the regression analysis. Reliability was tested using Cronbach’s alpha, where the degree of acceptance of reliability is 0.70 (Nunnally, 1978). Research limitations/implications Negative attitudes toward a potentially empowering tourist need further investigation and attention from policymakers. One possible explanation for this result may be that ecotourism through foreign tourist is not entirely anonymous, and this may dissuade people for fright of negative effects. It can be explained by the conservative culture of Saudi Arabia and the so-called “intermediate paradox” (Persson and Lindh, 2012), where the same people who are responsible for new forms of ecotourism explicitly or implicitly oppose these reforms. Practical implications From a practical perspective, the findings regarding attitudes toward ecotourism lend support to the notion that the government is doing a relatively good job and this work should be sustained. The respondents recognize that significant benefits can be derived if the government uses ecotourism to develop and increase livelihood of citizen. These benefits include more efficient policy- and decision-making processes and outcomes and greater engagement of citizens in government initiatives and priorities for ecotourism. This perception is in accord with the pervasive thinking in the literature regarding the transformative potential of ecotourism. The lack of interest or discomfort in engaging with the government via ecotourism has profound implications for the development of Farasan Island in Saudi Arabia. The finding suggests that regardless of the level of government investment in ecotourism, uptake may remain low. The study has also proposed and empirically tested a model of ecotourism that provides fertile grounds for further testing in other contexts and socio-political environments. From a practical perspective, the findings reported here could help shape the strategies and tactics the government could use to increase the rate of ecotourism in Saudi Arabia. Social implications From an original exploratory study that puts in perspective of Island experience, this study examines the scope of ecotourism as an alternative to tourism to the Farasan Island in Saudi Arabia. Considering the tourism potential existing on Farasan Island and its socio-cultural consequences discussed, we think of making tourism otherwise based on conservation of ecology and participation of local people. It is then shown that the position of the authorities in terms of alternative tourism, which remains the order of discourse, encourages local actors to pursue their own projects. But in terms of local development, the impact of these local initiatives, scattered and disjointed, are altogether very low. The authors try, through well-designed questionnaire, to explore and to take measures leading to the expected sustainable management of resources, while investments are gradually encouraging ecotourism in Farasan Island. The results indicate that the impact of local population and resource toward ecotourism is statistically significant and that they positively influence ecotourism. However, it was surprising that tourist was negatively related to ecotourism. Originality/value Research on ecotourism in Saudi Arabia is virtually non-existent, particularly research relating to tourist as opposed to the technological aspects of fostering ecotourism. The results of this study indicate that two variables positively influence ecotourism: local population and resource, through the use of nature and social tradition. The perceived benefits of ecotourism were statistically significant but negatively related to tourists. Moreover, both age and gender influence the level of ecotourism – age positively and gender negatively. These findings suggest that as people become more mature, they are more willing to encourage ecotourism of the country via natural and cultural channels. Also, it appears that women are not likely to use ecotourism more because of traditional practices of the role of women. Moreover, participants have a favorable attitude toward the progress and efforts made by the government to encourage greater ecotourism. Finally, while participants recognize the benefits of interacting with the government through programs and that program is likely to play a major role in future efforts, they currently do not see the need to use ecotourism or are not comfortable to engage with the government.

AbstractResults of computational analyses require transparent disclosure of their supporting resources, while the analyses themselves often can be very large scale and involve multiple processing steps separated in time. Evidence for the correctness of any analysis should include not only a textual description, but also a formal record of the computations which produced the result, including accessible data and software with runtime parameters, environment, and personnel involved. This article describes FAIRSCAPE, a reusable computational framework, enabling simplified access to modern scalable cloud-based components. FAIRSCAPE fully implements the FAIR data principles and extends them to provide fully FAIR Evidence, including machine-interpretable provenance of datasets, software and computations, as metadata for all computed results. The FAIRSCAPE microservices framework creates a complete Evidence Graph for every computational result, including persistent identifiers with metadata, resolvable to the software, computations, and datasets used in the computation; and stores a URI to the root of the graph in the result’s metadata. An ontology for Evidence Graphs, EVI (https://w3id.org/EVI), supports inferential reasoning over the evidence. FAIRSCAPE can run nested or disjoint workflows and preserves provenance across them. It can run Apache Spark jobs, scripts, workflows, or user-supplied containers. All objects are assigned persistent IDs, including software. All results are annotated with FAIR metadata using the evidence graph model for access, validation, reproducibility, and re-use of archived data and software.

AbstractWe develop a numerical method for computing with orthogonal polynomials that are orthogonal on multiple, disjoint intervals for which analytical formulae are currently unknown. Our approach exploits the Fokas–Its–Kitaev Riemann–Hilbert representation of the orthogonal polynomials to produce an method to compute the first N recurrence coefficients. The method can also be used for pointwise evaluation of the polynomials and their Cauchy transforms throughout the complex plane. The method encodes the singularity behavior of weight functions using weighted Cauchy integrals of Chebyshev polynomials. This greatly improves the efficiency of the method, outperforming other available techniques. We demonstrate the fast convergence of our method and present applications to integrable systems and approximation theory.

Abstract. Typically, objects are monolithic entities with a fixed interface. To increase the flexibility in this area, this paper presents first-class object sets as a language construct. An object set offers an interface which is a disjoint union of the interfaces of its member objects. It may also be used for a special kind of method invocation involving multiple<br />objects in a dynamic lookup process. With support for feature access and late-bound method calls object sets are similar to ordinary objects, only more flexible. The approach is made precise by means of a small calculus, and the soundness of its type system is shown by a mechanically checked proof in Coq.

Predictive modeling can be a valuable tool for systems designers, allowing them to capture and reuse knowledge from a set of observed data related to their system. An important challenge associated with predictive modeling is that of describing the domain over which model predictions are valid. This is necessary to avoid extrapolating beyond the original data, particularly when designers use predictive models in concert with optimizers or other computational routines that search a model’s input space automatically. The general problem of domain description is complicated by the characteristics of observational data sets, which can contain small numbers of samples, can have nonlinear associations among the variables, can be nonconvex, and can occur in disjoint clusters. Support vector machine (SVM) techniques, developed originally in the machine learning community, offer a solution to this problem. This paper is a description of a kernel-based SVM approach that yields a formal mathematical description of the valid input domain of a predictive model. The approach also provides for cluster analysis, which can lead to improved model accuracy through the decomposition of a data set into multiple subsets that designers can model independently. This paper includes a mathematical presentation of kernel-based SVM methods, an explanation of the procedure for applying the approach to predictive modeling problems, and illustrative examples for applying and using the approach in systems design.

ABSTRACT In 1999, a robust National Health Preparedness and Response Center was conceptualized and piloted, but never fully operationalized. This study revisits the expansive, coordinated efforts invested in this concept, considered an overdue remedy for persistent shortfalls in medical Chemical, Biological, Radiological, Nuclear, and High Yield Explosives training, proficiency, and preparation. The concept defined a robust mission for longstanding, proven programs for prepositioning equipment and associated training of personnel. This study explores the reasons that ended military and governmental support, attendant funding, and operations of the created Joint/Interagency Civil Support Center, which ceased on September 30, 2006. Unfortunately, the concept remains relevant. Major gaps in disaster medical response capabilities have been recognized for decades. Experts from the Institute of Medicine, United States Northern Command, and multiple academic centers and professional organizations have identified these shortcomings, but the national response posture remains disjointed, under-resourced, and based upon obsolete planning premises. Given increasing threats, the authors recommend revisiting the collaboration of military, civilian, academic, and governmental resources that once established the Joint/Interagency Civil Support Center as a multidisciplinary and trans-disciplinary model for a new National Health Preparedness and Response Center coordinated framework for enhanced resilience and operational response capabilities on a national level.

Abstract Background Patients with complex care needs have multiple concurrent conditions (medical, psychiatric, social vulnerability or functional impairment), interfering with achieving desired health outcomes. Their care often requires coordination and integration of services across hospital and community settings. Physicians feel ill-equipped and unsupported to navigate uncertainty and ambiguity caused by multiple problems. A HIV Psychiatry resident elective was designed to support acquisition of integrated competencies to navigate uncertainty and disjointed systems of care – necessary for complex patient care. Methods Through qualitative thematic analysis of pre- and post-interviews with 12 participants – residents and clinic staff – from December 2019 to September 2022, we explored experiences of this elective. Results This educational experience helped trainees expand their understanding of what makes patients complex. Teachers and trainees emphasize the importance of an approach to “not knowing” and utilizing integrative competencies for navigating uncertainty. Through perspective exchange and collaboration, trainees showed evidence of adaptive expertise: the ability to improvise while drawing on past knowledge. Conclusions Postgraduate training experiences should be designed to facilitate skills for caring for complex patients. These skills help residents fill in practice gaps, improvise when standardization fails, and develop adaptive expertise. Going forward, findings will be used to inform this ongoing elective.

AbstractCloud Mobile Ad-hoc Networks (Cloud-MANETs) is a framework that can access and deliver cloud services to MANET users through their smart devices. MANETs is a pool of self-organized mobile gadgets that can communicate with each other with no support from a central authority or infrastructure. The main advantage of MANETs is its ability to manage mobility while data communication between different users in the system occurs. In MANETs, clustering is an active technique used to manage mobile nodes. The security of MANETs is a key aspect for the fundamental functionality of the network. Addressing the security-related problems ensures that the confidentiality and integrity of the data transmission is secure. MANETs are highly prone to attacks because of their properties.In clustering schemes, the network is broken down to sub-networks called clusters. These clusters can have overlapping nodes or be disjointed. An enhanced node referred to asthe Cluster Head (CH) is chosen from each set to overseetasks related to routing. It decreases the member nodes’ overhead and improvesthe performance of the system. The relationship between the nodes and CH may vary randomly, leading to re-associations and re-clustering in a MANET that is clustered. An efficient and effective routing protocol is required to allow networking and to find the most suitable paths between the nodes. The networking must be spontaneous, infrastructure-less, and provide end-to-end interactions. The aim of routing is the provision of maximum network load distribution and robust networks. This study focused on the creation of a maximal route between a pair of nodes, and to ensure the appropriate and accurate delivery of the packet. The proposed solution ensured that routing can be carried out with the lowest bandwidth consumption. Compared to existing protocols, the proposed solution had a control overhead of 24, packet delivery ratio of 81, the lowest average end-to-end delay of 6, and an improved throughput of 80,000, thereby enhancing the output of the network. Our result shows that multipath routing enables the network to identify alternate paths connecting the destination and source. Routing is required to conserve energy and for optimum bandwidth utilization.

Real-world complex systems research seeks to understand how systems in the world can follow the same rules of complexity. Scientists have found similarities in processes—such as self-organization, micro-to macro-level emergence, and feedback loops—in seemingly disparate phenomena such as the spread of infectious diseases and how traffic patterns are formed. Our project, BioGraph 2.0, was developed to respond to the issue of students’ disjointed understanding of biology due to the fragmented nature of how high school biology is taught in high school classrooms. We hypothesized that by framing multiple biology concepts through the lens of complexity using dynamic simulations, or models featuring complex systems processes, students would be able to see complex systems as a unifying concept throughout biology. We built a series of units modeling phenomena on biological concepts such as gene regulation, ecology, and evolution using an agent-based modeling tool called StarLogo Nova. While previous research over the last decade of this project has highlighted students’ growth in complex systems understanding, in this study, we explored the relationship between complex systems and agent-based models. We investigated pre and post intervention data from over 300 high school students to determine how their metamodeling knowledge influenced their understanding of complex systems. Through a regression analysis, we demonstrate that growth in students’ modeling understanding significantly predicted growth in complex systems understanding. We further triangulate our findings with interview data from students who highlight the importance of the modeling tool to support their complex systems learning.

This paper will discuss the way in which the creative component of my thesis Hannah’s Place uses a style of neo-historical fiction to find ‘good’ narratives in (once) ‘bad’ women, keeping with the theme, here paraphrased as: The work of any researcher in the humanities is to…challenge what is simply thought of as bad or good, to complicate essentialist categories and question passively accepted thinking. As a way of expanding this statement, I would like to begin by considering the following quote from Barthes on the nature of research. I believe he identifies the type of research that I have been involved with as a PhD candidate producing a ‘creative’ thesis in the field of Communications. What is a piece of research? To find out, we would need to have some idea of what a ‘result’ is. What is it that one finds? What is it one wants to find? What is missing? In what axiomatic field will the fact isolated, the meaning brought out, the statistical discovery be placed? No doubt it depends each time on the particular science approached, but from the moment a piece of research concerns the text (and the text extends very much further than the literary work) the research itself becomes text, production: to it, any ‘result’ is literally im-pertinent. Research is then the name which prudently, under the constraint of certain social conditions, we give to the activity of writing: research here moves on the side of writing, is an adventure of the signifier. (Barthes 198) My thesis sits within the theoretical framework of postmodern literature as a new form of the genre that has been termed ‘historical fiction’. Although the novel breaks away from and challenges the concept of the traditional ‘saga’ style of narrative, or ‘grand narrative’ within historical fiction, it is no less concerned with events of the past and the idea of past experience. It departs from traditional historical fiction in that it foregrounds not only an imagined fictional past world created when the novel is read, but also the actual archival documents, the pieces of text from the past from which traditional history is made, and which here have been used to create that world–‘sparking points’ for the fictional narrative. These archival documents are used within the work as intertextual elements that frame, and, in turn, are framed by the transworld characters’ homodiegetic narrations. The term ‘transworld character’ has been attributed to Umberto Eco and refers to any real world personages found within a fictional text. Eco defines it as the ‘identity of a given individual through worlds (transworld identity)…where the possible world is a possible state of affairs expressed by a set of relevant propositions [either true or untrue which] outlines a set of possible individuals along with their properties’ (219). Umberto Eco also considers that a problem of transworld identity is ‘to single out something as persistent through alternative states of affairs’ (230). In Postmodernist Fiction, Brian McHale also puts forward a number of definitions for ‘transworld identity’. For my purposes, I take it to mean both that defined by Eco but also the literary device, as defined by McHale, of ‘borrowing a character from another text’ (57). It is McHale who elaborates on the concept as it relates to historical fiction when he states: All historical novels, even the most traditional, typically involve some violation of ontological boundaries. For instance they often claim ‘transworld identity’ between characters in their projected worlds and real-world historical figures (16-17). Interestingly for the type of fiction that I am attempting to write, McHale also takes the idea into another area when he discusses the ontological levels of the historical dimension that transworld identities may undergo. Entities can change their ontological status in the course of history, in effect migrating from one ontological realm or level to another. For instance, real world entities and happenings can undergo ‘mythification’, moving from the profane realm to the realm of the sacred (36). For transworld identities, such as those within my novel, this may mean a change in status between the past, where they were stereotyped and categorised as ‘bad’ in contemporary newspapers (my intertext elements), to something in the present approaching ‘good’, or at least a more rounded female identity within a fictional world. The introduced textual elements which I foreground in my novel are those things most often hidden from view within the mimetic and hermeneutic worlds of traditional historical fiction. The sources re-textualised within my novel are both ‘real’ items from our past, and representations and interpretations of past events. The female transworld characters’ stories in this novel are imaginative re-interpretations. Therefore, both the fictional stories, as well as their sources, are textual interpretations of prior events. In this way, the novel plays with the idea of historical ‘fact’ and historical ‘fiction’. It blurs their boundaries. It gives textual equality to each in order to bring a form of textual agency to those marginalised groups defined by PF Bradley as the ‘host of jarring witnesses, [of history] a chaos of disjoined and discrepant narrations’ (Bradley in Holton 11): In the past in Australia these were lower class women, Aboriginals, the Irish, the illiterate, and poor agricultural immigrants whose labour was excess to Britain’s needs. Hannah’s Place – A Brief Synopsis Six individual women’s stories, embedded in or ‘framed’ by a fictional topographic artist’s journal, recount ‘real’ events from Australia’s colonial past. The journal is set in 1845; a few years after convict transportation to Australia’s eastern states ceased, and the year of the first art exhibition held in the colony. That same year, Leichhardt’s expedition arrived at Port Essington in Australia’s far north, after 12 months inland exploration, while in the far south the immigrant ship Cataraqui was wrecked one day short of arrival at Melbourne’s Port Phillip with the drowning of all but one of the 369 immigrants and 38 of the 46 sailors on board. Each chapter title takes the form of the title of a topographic sketch as a way of placing the text ‘visually’ within the artist’s journal narrative. The six women’s stories are: New South Wales at Last (Woman on a Boat): A woman arrives with a sick toddler to tent accommodation for poor immigrants in Sydney, after a three month sea voyage and the shipboard birth, death, and burial at sea of her baby daughter. Yarramundi Homestead, as Seen from the East: An ill-treated Irish servant girl on a squatter’s run awaits the arrival of her fiancée, travelling on board the immigrant ship Cataraqui. In the Vale of Hartley: In the Blue Mountains, an emancipist sawyer who previously murdered three people, violently beats to death his lover, Caroline Collitts, the seventeen-year-old sister of Maria, his fifteen-year-old wife. She Being Dead Yet Speaketh: In Goulburn, Annie Brownlow, a pretty 24-year-old mother of three is executed by a convict executioner for the accidental ‘murder’, while drunk, of her adulterous husband. The Eldest Daughter: The isolated wife of a small settler gives birth, assisted by Lottie, her eldest daughter, and Merrung, an Aboriginal midwife. On Wednesday Last, at Mr Ley’s Coach and Horses Hotel: In Bathurst, a vagrant alcoholic, Hannah Simpson, dies on the floor of a dodgy boarding house after a night and a day of falling into fits and ranting about her lifetime of 30 years migration. Historiographic Metafiction Has been defined by Linda Hutcheon as ‘Fiction which keeps distinct its formal auto-representation from its historical context and in so doing problematises the very possibility of historical knowledge… There is no reconciliation, no dialectic…just unresolved contradiction’ (106). Unresolved contradiction is one of the themes that surfaces in my novel because of the juxtaposition of archival documents (past text ‘facts’) alongside fictional narrative. Historiographic metafiction can usefully be employed as a means of challenging prior patriarchal narratives written about marginalised women. It allows the freedom to create a space for a new understanding of silenced women’s lives. My novel seeks to illuminate and problematise the previously ‘seamless’ genre of hical fiction by the use of (narrative) techniques such as: collage and juxtaposition, intertextuality, framing, embedded narrative, linked stories, and footnote intertext of archival material. Juxtaposition of the fiction against elements from prior non-fiction texts, clearly enunciated as being those same actual historical sources upon which the fiction is based, reinforces this novel as a work of fiction. Yet this strategy also reminds us that the historical narrative created is provisional, residing within the fictional text and in the gaps between the fictional text and the non-fictional intertext. At the same time, the clear narrativity, the suspenseful and sensationalised text of the archival non-fiction, brings them into question because of their place alongside the fiction. A reading of the novel questions the truthfulness or degree of reliability of past textual ‘facts’ as accurate records of real women’s life events. It does this by the use of a parallel narrative, which articulates characters whose moments of ‘breaking frame’ challenge those same past texts. Their ‘fiction’ as characters is reinforced by their existence as ‘objects’ of narration within the archival texts. Both the archival texts and the fiction can be seen as ‘unreliable’. The novel uses ex-centric transworld characters and embedded intertextual ‘fragments’ to create a covert self-reflexivity. It also confuses and disrupts narrative temporality and linearity of plot in two ways. It juxtaposes ‘real’ (intertextual element) dates alongside conflicting or unknown periods of time from the fictional narrative; and, within the artist’s journal, it has a minimal use of expected temporal ‘signposts’. These ‘signposts’ of year dates, months, or days of the week are those things that would be most expected in an authentic travel narrative. In this way, the women’s stories subvert the idea, inherent in previous forms of ‘historical’ fiction, of a single point of view or ‘take’ on history that one or two main characters may hold. The use of intertext results in a continued restating of multiple, conflicting (gender, race, and class) points of view. Ultimately no one ‘correct’ reading of the past gains in supremacy over any other. This narrative construct rearticulates the idea that the past, as does the present, comprises different points of view, not all of which conform to the ‘correct’ view created by the political, social and economic ‘factors’ dominant at the time those events happen. For colonial Australia, this single point of view gave us the myth of heroic (white male) pioneers and positioned women such as some of those within my fiction as ‘bad’. The fictional text challenges that of the male ‘gaze’, which constructed these women as ‘objects’. Examples of this from the newspaper articles are: A younger sister of Caroline Collit, married John Walsh, the convict at present under sentence of death in Bathurst gaol, and, it appears, continued to live with him up till the time of her sister’s murder; but she, as well as her sister Caroline, since the trial, have been ascertained to have borne very loose characters, which is fully established by the fact, that both before and after Walsh had married the younger sister, Caroline cohabited with him and had in fact been for a considerable time living with him, under the same roof with her sister, and in a state of separation from her own husband (Collit). Sydney Morning Herald, April 27, 1842, The Mount Victoria Murder. About twelve months after her marriage, her mother who was a notorious drunkard hanged herself in her own house… Sydney Morning Herald, April 27, 1842, The Mount Victoria Murder. And when we further reflect that the perpetrator of that deed of blood was a woman our horror is, if possible, much augmented. Yes! A woman and one who ought to have been in as much as the means were assuredly in the power of her family-an ornament to her sex and station. She has been cut off in the midst of her days by the hands of the common executioner. And to add to our distress at this sad event she to whose tragic end I am referring was a wife and a mother. It was her hand which struck the blow that rendered her children orphans and brought her to an ignominious end… The Goulburn Herald, October 20, 1855, Funeral sermon on Mary Ann Brownlow. His wife had been drinking and created an altercation on account of his having sold [her] lease; she asked him to drink, but he refused, when she replied “You can go and drink with your fancywoman”. She came after him as he was going away and stabbed him…..she did it from jealousy, although he had never given her any cause for jealousy. The Goulburn Herald, Saturday, September 15, 1855, Tuesday, September 11, Wilful Murder. She was always most obedient and quiet in her conduct, and her melancholy winning manners soon procured her the sympathy of all who came in contact with her. She became deeply impressed with the sinfulness of her previous life… The Goulburn Herald, October 13, 1855, Execution of Mary Ann Brownlow. [Police] had known the deceased who was a confirmed drunkard and an abandoned woman without any home or place of abode; did not believe she had any proper means of support…The Bathurst Times, November 1871. It is the oppositional and strong narrative ‘voice’ that elicits sympathies for and with the women’s situations. The fictional narratives were written to challenge unsympathetic pre-existing narratives found within the archival intertexts. This male ‘voice’ was one that narrated and positioned women such that they adhered to pre-existing notions of morality; what it meant to be a ‘good’ woman (like Mary Ann Brownlow, reformed in gaol but still sentenced to death) or a ‘bad’ woman (Mary Ann again as the murdering drunken vengeful wife, stabbing her husband in a jealous rage). ‘Reading between the lines’ of history in this way, creating fictional stories and juxtaposing them against the non-fiction prior articulations of those same events, is an opportunity to make use of narrative structure in order to destabilise established constructs of our colonial past. For example, the trope of Australia’s colonial settler women as exampled in the notion of Anne Summers of colonial women as either God’s police or damned whores. ‘A Particularly rigid dualistic notion of women’s function in colonial society was embodied in two stereotypes….that women are either good [God’s police] or evil [Damned whores]’ (67). With this dualism in mind, it is also useful here to consider the assumption made by Veeser in laying the ground work for New Historicism, that ‘no discourse imaginative or archival, gives access to unchanging truths or expresses unalterable human nature’ (2). In a discussion of the ideas of Brian McHale, Middleton and Woods acknowledge McHale’s point of view that readers do recognise the degree to which all knowledge of the past is a construction. They make the claim that ‘the postmodern novelist answers that sense of dislocation and loss…by wrapping ruins of earlier textualities around the narrative’ (66). This to my mind is a call for the type of intertextuality that I have attempted in my thesis. The senses of dislocation and loss found when we attempt to narrativise history are embodied in the structure of the creative component of my thesis. Yet it could also be argued that the cultural complexity of colonial Australia, with women as the subjugated ‘other’ of a disempowered voice has only been constructed by and from within the present. The ‘real’ women from whose lives these stories are imagined could not have perceived their lives within the frames (class, gender, post coloniality) that we now understand in the same way that we as educated westerners cannot totally perceive a tribal culture’s view of the cosmos as a real ‘fact’. However, a fictional re-articulation of historical ‘facts’, using a framework of postmodern neo-historical fiction, allows archival documents to be understood as the traces of women to whom those documented facts once referred. The archival record becomes once again a thing that describes a world of women. It is within these archival micro-histories of illiterate lower-class women that we find shards of our hidden past. By fictionally imagining a possible narrative of their lives we, as the author/reader nexus which creates the image of who these transworld characters were, allow for things that existed in the past as possibility. The fictionalised stories, based on fragments of ‘facts’ from the past, are a way of invoking what could have once existed. In this way the stories partake of the Bernstein and Morson concept of ‘sideshadowing’. Sideshadowing admits, in addition to actualities and impossibilities, a middle realm of real possibilities that could have happened even if they did not. Things could have been different from the way they were, there are real alternatives to the present we know, and the future admits of various possibilities… sideshadowing deepens our sense of the openness of time. It has profound implications for our understanding of history and of our own lives (Morson 6). The possibilities that sideshadowing their lives invokes in these stories ‘alters the way that we think about earlier events and the narrative models used to describe them’ (Morson 7). We alter our view of the women, as initially described in the archival record, because we now perceive the narrative through which these events and therefore ‘lives’ of the women were written, as merely ‘one possibility’ of many that may have occurred. Sideshadowing alternate possibilities gives us a way out of that patriarchal hegemony into a more multi-dimensional and non-linear view of female lives in 19th Century Australia. Sideshadowing allows for the ‘non-closure’ within female narratives that these fragments of women’s lives represent. It is this which is at the core of the novel—an historiographic metafictional challenging by the fictional ‘voices’ of female transworld characters. In this work, they narrate from a female perspective the might-have-been alternative of that previously considered as an historical, legitimate account of the past. Barthes and Bakhtin Readers of this type of historiographic metafiction have the freedom to recreate an historical fictional world. By virtue of the use of self-reflexivity and intertext they participate in a fictional world constructed by themselves from the author(s) of the text(s) and the intertext, and the original women’s voices used as quotations by the intertext’s (male) author. This world is based upon their construction of a past created from the author’s research, the author’s subjectivity (from within and by disciplinary discourse), by the author(s) choice of ‘signifiers’ and the meanings that these choices create within the reader’s subjectivity (itself formed out of their individual cultural and social milieu). This idea echoes Barthes concept of the ‘death of the author’, such that: As soon as a fact is narrated no longer with a view to acting directly on reality but intransitively, that is to say, finally outside of any function other than that of the very practice of the symbol itself; this disconnection occurs, the voice loses its origin, the author enters into his own death, writing begins. (142) When entering into the world created by this style of historical fiction the reader also enters into a world of previous ‘texts’ (or intertexts) and the multitude of voices inherent in them. This is the Bakhtinian concept of heteroglossia, that ‘every utterance contains within it the trace of other utterances, both in the past and in the future’ (263). The narrative formed thus becomes one of multiple ‘truths’ and therefore multiple histories. Once written as ‘bad’, the women are now perceived as ‘good’ characters and the ‘bad’ events that occurred around them and to them make up ‘good’ elements of plot, structure, characterisation and voice for a fictionalised version of a past possibility. Bad women make good reading. Conclusion This type of narrative structure allows for the limits of the silenced ‘voice’ of the past, and therefore an understanding of marginalised groups within hegemonic grand narratives, to be approached. It seems to me no surprise that neo-historical fiction is used more when the subjects written about are members of marginalised groups. Silenced voices need to be heard. Because these women left no written account of their experiences, and because we can never experience the society within which their identities were formed, we will never know their ‘identity’ as they experienced it. Fictional self-narrated stories of transworld characters allows for a transformation of the women away from an identity created by the moralising, stereotyped descriptions in the newspapers towards a more fully developed sense of female identity. Third-hand male accounts written for the (then) newspaper readers consumption (and for us as occupiers of the ‘future’) are a construct of one possible identity only. They do not reflect the women’s reality. Adding another fictional ‘identity’ through an imagined self-narrated account deconstructs that limited ‘identity’ formed through the male ‘gaze’. It does so because of the ability of fiction to allow the reader to create a fictional world which can be experienced imaginatively and from within their own subjectivity. Rather than something passively recorded, literature offers history as a permanent reactivation of the past in a critique of the present, and at the level of content offers a textual anamnesis for the hitherto ignored, unacknowledged or repressed pasts marginalised by the dominant histories. (Middleton and Woods 77) References Bakhtin, Mikhail. The Dialogic Imagination: Four Essays. Trans. Michael Holquist. Ed. Caryl Emerson. Austin: U of Texas P, 1981. Barthes, Roland, and Stephen Heath, eds. Image, Music, Text. New York: Hill and Wang, 1977. Eco, Umberto. The Role of the Reader: Explorations in the Semiotics of Texts. Bloomington and London: Indiana UP, 1979. Holton, Robert. Jarring Witnesses: Modern Fiction and the Representation of History. New York: Harvester Wheatsheaf, 1994. Hutcheon, Linda. A Poetics of Postmodernism: History, Theory, Fiction. New York: Routledge, 1988. McHale, Brian. Postmodernist Fiction. New York and London: Methuen, 1987. Middleton, Peter, and Tim Woods. Literatures of Memory: History, Time and Space in Postwar Writing. Manchester and New York: Manchester UP, 2000. Morson, Gary Saul. Narrative and Freedom: The Shadows of Time. New Haven: Yale UP, 1994. Summers, Anne. Damned Whores and God’s Police. Ringwood Vic: Penguin Books, 1994. Veeser, H. Aram. The New Historicism. London: Routledge, 1989. Citation reference for this article MLA Style Lowes, Elanna Herbert. "Transgressive Women, Transworld Women: The Once ‘Bad’ Can Make ‘Good’ Narratives." M/C Journal 8.1 (2005). echo date('d M. Y'); ?> <http://journal.media-culture.org.au/0502/04-herbertlowes.php>. APA Style Lowes, E. (Feb. 2005) "Transgressive Women, Transworld Women: The Once ‘Bad’ Can Make ‘Good’ Narratives," M/C Journal, 8(1). Retrieved echo date('d M. Y'); ?> from <http://journal.media-culture.org.au/0502/04-herbertlowes.php>.