122 research outputs found
Conceptual Framework and Methodology for Analysing Previous Molecular Docking Results
Modern drug discovery relies on in-silico computational simulations such as molecular docking. Molecular docking models biochemical interactions to predict where and how two molecules would bind. The results of large-scale molecular docking simulations can provide valuable insight into the relationship between two molecules. This is useful to a biomedical scientist before conducting in-vitro or in-vivo wet-lab experiments. Although this ˝eld has seen great advancements, feedback from biomedical scientists shows that there is a need for storage and further analysis of molecular docking results. To meet this need, biomedical scientists need to have access to computing, data, and network resources, and require speci˝c knowledge or skills they might lack.
Therefore, a conceptual framework speci˝cally tailored to enable biomedical scientists to reuse molecular docking results, and a methodology which uses regular input from scientists, has been proposed. The framework is composed of 5 types of elements and 13 interfaces. The methodology is light and relies on frequent communication between biomedical sciences and computer science experts, speci˝ed by particular roles. It shows how developers can bene˝t from using the framework which allows them to determine whether a scenario ˝ts the framework, whether an already implemented element can be reused, or whether a newly proposed tool can be used as an element.
Three scenarios that show the versatility of this new framework and the methodology based on it, have been identi˝ed and implemented. A methodical planning and design approach was used and it was shown that the implementations are at least as usable as existing solutions. To eliminate the need for access to expensive computing infrastructure, state-of-the-art cloud computing techniques are used.
The implementations enable faster identi˝cation of new molecules for use in docking, direct querying of existing databases, and simpler learning of good molecular docking practice without the need to manually run multiple tools. Thus, the framework and methodol-ogy enable more user-friendly implementations, and less error-prone use of computational methods in drug discovery. Their use could lead to more e˙ective discovery of new drugs
Specifying timing requirements in domain specific languages for modeling
Complex Real-Time Embedded Systems (RTESs) can
be developed using model-based engineering. The problem is choosing a modeling language that has capabilities to model the most important characteristic of RTESs: timing. This paper shows an analysis of the most popular modeling languages and their capabilities to model timing constraints in RTESs. It includes UML, SysML, AADL, MARTE and EAST-ADL. A brief comparison between MARTE and EAST-ADL, based on the case study from the automotive industry, is also included
Model-based engineering in real-time embedded systems: specifying timing constraints
This paper presents the results from a research project on development of Real-Time Embedded Systems (RTESs) using a Model-Based Engineering (MBE) approach. A review of the state-of-the-art modelling languageswas done in order to assess their capabilities to model time. A chosen case study,a Brake-By-Wire (BBW) system, was taken from the automotive industry.The case study focuses on the use of EAST-ADL to model the RTES and
TADL to specify timing constraints. A different approach using MARTE to model the BBW system was developed within our project. This approach is used to compare MARTE (and OCL) with EAST-ADL (and TADL). The results show that MARTE can be used to model an RTES from the automotive
industry but lacks some important semantic expressions for the timing constraints which are present in TADL
A Generic Framework and Methodology for Implementing Science Gateways for Analysing Molecular Docking Results
Molecular docking and virtual screening experiments require large computational and data resources and high-level user interfaces in the form of science gateways. While science gateways supporting such experiments are relatively common, there is a clearly identified need to design and implement more complex environments for further analysis of docking results. This paper describes a generic framework and a related methodology that supports the efficient development of such environments. The framework is modular enabling the reuse of already existing components. The methodology is agile and encourages the input and participation of end-users. A prototype implementation, based on the framework and methodology, of a science-gateway-based molecular docking environment for recommending a ligand-protein pair for next docking experiment is also presented and evaluated
BUSINESS INFORMATION MANAGEMENT SYSTEM FOR CONSUMERS – SPECIAL EMPHASIS ON THE SATISFACTION OF CONSUMERS OF HEAT ENERGY
In this research paper, we will adequately address the sphere of information technology and systems in the consumer management company expressed through their satisfaction with the use of a legally regulated service. Management of business systems must constantly find solutions to the turbulent business environment, among other things, on the issue of developing their own strategy in the field of business, automation, integration and use of information resources. There is no area where there is no evident impact on the information elements of the system, especially in terms of technology, methods, standards and information. The very competition of utilities becomes more serious than the fact that there are more modern IT solutions that bring the service closer to the consumer. There is a need to develop a business strategy of the system, which is a strategy for the development of information systems. The basic application of information systems is in high productivity by providing new technological solutions.
Keywords: CRM, information technology, competitiveness, quality, service of heat energ
Molecular docking with Raccoon2 on clouds: extending desktop applications with cloud computing
Molecular docking is a computer simulation that predicts the binding affinity between two molecules, a ligand and a receptor. Large-scale docking simulations, using one receptor and many ligands, are known as structure-based virtual screening. Often used in drug discovery, virtual screening can be very computationally demanding. This is why user-friendly domain-specific web or desktop applications that enable running simulations on powerful computing infrastructures have been created. Cloud computing provides on-demand availability, pay-per-use pricing, and great scalability which can improve the performance and efficiency of scientific applications. This paper investigates how domain-specific desktop applications can be extended to run scientific simulations on various clouds. A generic approach based on scientific workflows is proposed, and a proof of concept is implemented using the Raccoon2 desktop application for virtual screening, WS-PGRADE workflows, and gUSE services with the CloudBroker platform. The presented analysis illustrates that this approach of extending a domain-specific desktop application can run workflows on different types of clouds, and indeed makes use of the on-demand scalability provided by cloud computing. It also facilitates the execution of virtual screening simulations by life scientists without requiring them to abandon their favourite desktop environment and providing them resources without major capital investment
Extending Molecular Docking Desktop Applications with Cloud Computing Support and Analysis of Results
Structure-based virtual screening simulations, which are often used in drug discovery, can be very computationally demanding. This is why user-friendly domain-specific web or desktop applications that enable running simulations on powerful computing infrastructures have been created. This article investigates how domain-specific desktop applications can be extended to use cloud computing and how they can be part of scenarios that require sharing and analysing previous molecular docking results. A generic approach based on interviews with scientists and analysis of existing systems is proposed. A proof of concept is implemented using the Raccoon2 desktop application for virtual screening, WS-PGRADE workflows, gUSE services with the CloudBroker Platform, the structural alignment tool DeepAlign, and the ligand similarity tool LIGSIFT. The presented analysis illustrates that this approach of extending a domainspecific desktop application can use different types of clouds, thus facilitating the execution of virtual screening simulations by life scientists without requiring them to abandon their favourite desktop environment and providing them resources without major capital investment. It also shows that storing and sharing molecular docking results can produce additional conclusions such as viewing similar docking input files for verification or learning
Implementation of a System for Physiological Status Monitoring by using Tactical Military Networks
E-health sensors are continuing to become more advanced and more reliable in monitoring the human physiological status. There is a continuous scope for improvement in their implementation in different emergency situations. Military organisations can take an advantage of this technology for applying physiological status monitoring on personnel engaged in military operations. This implementation is driven by continuous enhancements of existing communication equipment that produces more data capable radio networks in military environment. Based on these technologies we are proposing system communication architecture for applying real-time physiological status monitoring for personnel engaged in military operations. To examine the proposed architecture, a laboratory testing was performed. The laboratory work included a definition of military communication equipment, testing the received data with custom developed algorithm based on Markov decision process for automating the medical emergency protocol (MDP-AMEP) and implementation of adequate data protocols for data transmitting. Obtained results showed that physiological status of the military personnel can be successfully monitored by using tactical military network
Novel approach for finding shortest route using Dijkstra's Algorithm and Fuzzy Logic in a Wireless Sensor Network integrated into a Forest fire detection system
This paper proposes a Fuzzy Logic Controller/ Dijkstra’s Algorithm based software that calculates the most reliable communication
link between a WaspmotePlug&Sense Sensor Node and a Meshlium Router in a Wireless Sensor Network (WSN). The algorithm
implements the effect of three parameters important for the functioning of the WSN: Waspmote involvement, the received signal
strength indicator (RSSI) and the distance of the Waspmotes, for achieving optimal work capability of the system. Due to the
inherent weaknesses of the conventionally used Star and Tree topologies which provide a single route with no alternatives on the
forwarding of data, the lack of a software or algorithm that would select the optimal route and the fact that signal quality does not
necessarily indicate optimal route employment, we propose an application of a Mesh topology along with a Fuzzy Logic Controller/
Dijkstra’s Algorithm based software. Mesh topology allows each controller to be individually connected to at least two Meshlium
routers, thus providing an alternative transmission solution in case of damage to certain links between the nodes and selection of a
more efficient link for transmission of information. The Fuzzy Logic Controller/ Dijkstra’s Algorithm setup reduces energy
consumption of the WSN fire detection system by calculating and determining which routers should start up, instead of all of them
working
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