Participatory Militias: An Analysis of an Armed Movement's Online Audience

Armed groups of civilians known as "self-defense forces" have ousted the powerful Knights Templar drug cartel from several towns in Michoacan. This militia uprising has unfolded on social media, particularly in the "VXM" ("Valor por Michoacan," Spanish for "Courage for Michoacan") Facebook page, gathering more than 170,000 fans. Previous work on the Drug War has documented the use of social media for real-time reports of violent clashes. However, VXM goes one step further by taking on a pro-militia propagandist role, engaging in two-way communication with its audience. This paper presents a descriptive analysis of VXM and its audience. We examined nine months of posts, from VXM's inception until May 2014, totaling 6,000 posts by VXM administrators and more than 108,000 comments from its audience. We describe the main conversation themes, post frequency and relationships with offline events and public figures. We also characterize the behavior of VXM's most active audience members. Our work illustrates VXM's online mobilization strategies, and how its audience takes part in defining the narrative of this armed conflict. We conclude by discussing possible applications of our findings for the design of future communication technologies.Comment: Participatory Militias: An Analysis of an Armed Movement's Online Audience. Saiph Savage, Andres Monroy-Hernandez. CSCW: ACM Conference on Computer-Supported Cooperative Work 201

Modeling, Simulation and Emulation of Intelligent Domotic Environments

Intelligent Domotic Environments are a promising approach, based on semantic models and commercially off-the-shelf domotic technologies, to realize new intelligent buildings, but such complexity requires innovative design methodologies and tools for ensuring correctness. Suitable simulation and emulation approaches and tools must be adopted to allow designers to experiment with their ideas and to incrementally verify designed policies in a scenario where the environment is partly emulated and partly composed of real devices. This paper describes a framework, which exploits UML2.0 state diagrams for automatic generation of device simulators from ontology-based descriptions of domotic environments. The DogSim simulator may simulate a complete building automation system in software, or may be integrated in the Dog Gateway, allowing partial simulation of virtual devices alongside with real devices. Experiments on a real home show that the approach is feasible and can easily address both simulation and emulation requirement

Integrated engineering environments for large complex products

An introduction is given to the Engineering Design Centre at the University of Newcastle upon Tyne, along with a brief explanation of the main focus towards large made-to-order products. Three key areas of research at the Centre, which have evolved as a result of collaboration with industrial partners from various sectors of industry, are identified as (1) decision support and optimisation, (2) design for lifecycle, and (3) design integration and co-ordination. A summary of the unique features of large made-to-order products is then presented, which includes the need for integration and co-ordination technologies. Thus, an overview of the existing integration and co-ordination technologies is presented followed by a brief explanation of research in these areas at the Engineering Design Centre. A more detailed description is then presented regarding the co-ordination aspect of research being conducted at the Engineering Design Centre, in collaboration with the CAD Centre at the University of Strathclyde. Concurrent Engineering is acknowledged as a strategy for improving the design process, however design coordination is viewed as a principal requirement for its successful implementation. That is, design co-ordination is proposed as being the key to a mechanism that is able to maximise and realise any potential opportunity of concurrency. Thus, an agentoriented approach to co-ordination is presented, which incorporates various types of agents responsible for managing their respective activities. The co-ordinated approach, which is implemented within the Design Co-ordination System, includes features such as resource management and monitoring, dynamic scheduling, activity direction, task enactment, and information management. An application of the Design Co-ordination System, in conjunction with a robust concept exploration tool, shows that the computational design analysis involved in evaluating many design concepts can be performed more efficiently through a co-ordinated approach

A Scalable Middleware Solution for Advanced Wide Area Web Services

To alleviate scalability problems in the Web, many researchers concentrate on how to incorporate advanced caching and replication techniques. Many solutions incorporate object-based techniques. In particular, Web resources are considered as distributed objects offering a well-defined interface. We argue that most proposals ignore two important aspects. First, there is little discussion on what kind of coherence should be provided. Proposing specific caching or replication solutions makes sense only if we know what coherence model they should implement. Second, most proposals treat all Web resources alike. Such a one-size-fits-all approach will never work in a wide-area system. We propose a solution in which Web resources are encapsulated in physically distributed shared objects. Each object should encapsulate not only state and operations, but also the policy by which its state is distributed, cached, replicated, migrated, etc

Transforming Aquaculture from Subsistence to Commercial Level for Sustainable Development in Niger Delta Region of Nigeria

Aquaculture venture in Niger Delta Region of Nigeria is an industry that encompasses fish cultivation in a controlled environment. It has evolved through numerous phases and stages with its potential yet to be fully tapped. To affirm this potential in contributing to human development, food security and improved standard of living, the aquaculture industry requires new approaches. Hence, this paper reviews the status of fish farming in Niger Delta, its subsistence state and its inability to meet the demand for fish by the populace, thus necessitating the need for transforming aquaculture from subsistence to commercial level. The components and the systems of commercial fish farming were thoroughly discussed. Also, constraints to commercial fish farming in the region were elucidated. The strategies for promoting commercial aquaculture such as, increase in awareness of aquaculture products, subsidizing of aquaculture inputs, training and manpower development, government support, formation of fish farmers cooperative societies, access to loans and credit facilities, promotion of research activities, effective fisheries policies, good institutional framework, and reducing the levels of corruption and insecurity in the region, were clearly pointed out as a veritable tools, for transforming the present state of aquaculture in Niger Delta, through planned, focused and coordinated effective management strategies, by individual farmers, government agencies and relevant institutions for sustainable development of the region in particular and the country in general

Effects of direct transfer to fresh water on the haematological parameters of Tilapia guineensis Bleeker, 1862

Changes in blood parameters of Tilapia guineensis transferred directly from brackish water (salinity 14.5 ‰) to fresh water (0.12 ‰) was investigated to assess the effect of sudden change in environment on fish blood characteristics. The results obtained indicated significant reduction (p < 0.05) in mean values of haemoglobin (Hb) from 5.50 . 0.61 to 3.65 . 0.66 dl-1, packed cell volume (PCV) 20.31 . 2.14 to 17.18 . 2.58%, red blood cell (RBC) 2.59 . 0.72 to 1.58 . 0.86 x 106, mean corpuscular haemoglobin concentration (MCHC) 27.03 . 3.66 to 20.99 . 3.75 pg, mean corpuscular volume (MCV) 78.82 . 6.12 to 70.92 . 4.27 fL and platelets (PLT) 175.19 . 12.32 to 144.46 . 9.22 103uL-1. However, increases were observed in the values of erythrocyte sedimentation rate (ESR) from 3.06 . 0.16 to 9.71 . 1.66 mm/hr, white blood cell (WBC) 27.18 . 2.96 to 29.69 . 3.75 x 109L-1, neutrophils (NEUT) 41.64 . 3.76 to 50.76 . 7.27 %, lympphocytes (LYMP) 55.30 . 3.24 to 59.30 . 11.26 % and monocytes (MON) 3.06 . 1.12 to 3.96 . 1.21 %. These alterations in the blood parameter were more noticeable in adult than juvenile fish. Results from this study therefore suggest that direct transfer of fish to area of lower salinity may have negative impact on the physiology of T. guineensis

Modeling views in the layered view model for XML using UML

In data engineering, view formalisms are used to provide flexibility to users and user applications by allowing them to extract and elaborate data from the stored data sources. Conversely, since the introduction of Extensible Markup Language (XML), it is fast emerging as the dominant standard for storing, describing, and interchanging data among various web and heterogeneous data sources. In combination with XML Schema, XML provides rich facilities for defining and constraining user-defined data semantics and properties, a feature that is unique to XML. In this context, it is interesting to investigate traditional database features, such as view models and view design techniques for XML. However, traditional view formalisms are strongly coupled to the data language and its syntax, thus it proves to be a difficult task to support views in the case of semi-structured data models. Therefore, in this paper we propose a Layered View Model (LVM) for XML with conceptual and schemata extensions. Here our work is three-fold; first we propose an approach to separate the implementation and conceptual aspects of the views that provides a clear separation of concerns, thus, allowing analysis and design of views to be separated from their implementation. Secondly, we define representations to express and construct these views at the conceptual level. Thirdly, we define a view transformation methodology for XML views in the LVM, which carries out automated transformation to a view schema and a view query expression in an appropriate query language. Also, to validate and apply the LVM concepts, methods and transformations developed, we propose a view-driven application development framework with the flexibility to develop web and database applications for XML, at varying levels of abstraction

BSML-mbeddr: Integrating Semantically Congurable State-Machine Models in a C Programming Environment

In model-driven engineering, developers express their solutions in domain-specific modelling languages (DSLs) that support domain-specific abstractions. Big-Step Modelling Languages (BSML) is a family of extended state-machine DSLs for creating executable models that have a complex execution semantics. In this paper, we present BSML-mbeddr, which imbeds a large subset of BSML within the mbeddr C programming environment, thereby extending mbeddr with language constructs for extended, semantically configurable state-machines. We also report on three case studies that exercise the expressiveness of BSML-mbeddr, assess the integrability of BSML-mbeddr into mbeddr, and demonstrate the need to provide support for state-machine models with different execution semantics.NSERC Discovery Grant, 155243-12 || Ontario Research Fund, RE05-04

Introduction to BPM approach in Healthcare and Case Study of End User Interaction with EHR Interface

Nowadays, process management is a key factor in the success of organizations. The market in which the organizations operate is increasingly competitive. This increase makes the improvement of business processes a constant and essential need in organizations. In recent years, organizations increasingly choose to adopt Business Process Management (BPM) and try to use the Business Process Model and Notation (BPMN) to model their processes and, as a result, to make their systems and applications more interoperable with others. The Electronic Health Record (EHR) is another system for the exploitation of clinical and administrative information. Much of the information is generated in the EHR itself, the rest of the information results from external systems and are loaded into the EHR support database. This technology is a system with encrypted clinical information used in hospitals. This article looks at what BPMN is, and how BPMN can be a solution for an EHR. As a result, BPMN workflow diagrams of the system processes of the study case organization were created. The platform used in the case study is the Agency for Integration, Archive and Diffusion of Medical Information (AIDA) platform. Four main modules of the EHR were modeled; one of the modules was the ambulatory module.This work has been supported by COMPETE: POCI-01-0145-FEDER-007043 and FCT - Fundacao para a Ciencia e Tecnologia within the Project Scope: UID/CEC/00319/2013