428 research outputs found
Exploring the adaptive capacity of emergency management using agent based modelling
This project aimed to explore the suitability of Agent Based Modelling and Simulation (ABMS) technology in assisting planners and policy makers to better understand complex situations with multiple interacting aspects. The technology supports exploration of the impact of different factors on potential outcomes of a scenario, thus building understanding to inform decision making. To concretise this exploration a specific simulation tool was developed to explore response capacity around flash flooding in an inner Melbourne suburb, with a focus on sandbag depots as an option to be considered.The three types of activities delivered by this project to achieve its objectives were the development of an agent-based simulation, data collection to inform the development of the simulation and communication and engagement activities to progress the work.
Climate change is an area full of uncertainties, and yet sectors such as Emergency Management and many others need to develop plans and policy responses regarding adaptation to these uncertain futures. Agent Based Modelling and Simulation is a technology which supports modelling of a complex situation from the bottom up, by modelling the behaviours of individual agents (often representing humans) in various scenarios. By running simulations with different configurations it is possible to explore and analyse a very broad range of potential options, providing a detailed understanding of potential risks and outcomes, given particular alternatives. This project explored the suitability of this technology for use in assessing and developing the capacity of the emergency response sector, as it adapts to climate change. A simulation system was developed to explore a particular issue regarding protection of property in a suburb prone to flash flooding. In particular the option of providing sandbag depots was explored. Simulations indicated that sandbag depots provided by CoPP or VicSES were at this time not a viable option. The simulation tool was deemed to be very useful for demonstrating this to community members as well as to decision makers. An interactive game was also developed to assist in raising awareness of community members about how to sandbag their property using on-site sandbags. The technology was deemed to be of great potential benefit to the sector and areas for further work inorder to realise this benefit were identified. In addition to developing awareness of useful technology, this project also demonstrated the critical importance of interdisciplinary team work, and close engagement with stakeholders and end users, if valuable technology uptake is to be realised.
 
Analyzing conformational changes in single FRET-labeled A1 parts of archaeal A1AO-ATP synthase
ATP synthases utilize a proton motive force to synthesize ATP. In reverse,
these membrane-embedded enzymes can also hydrolyze ATP to pump protons over the
membrane. To prevent wasteful ATP hydrolysis, distinct control mechanisms exist
for ATP synthases in bacteria, archaea, chloroplasts and mitochondria.
Single-molecule F\"orster resonance energy transfer (smFRET) demonstrated that
the C-terminus of the rotary subunit epsilon in the Escherichia coli enzyme
changes its conformation to block ATP hydrolysis. Previously we investigated
the related conformational changes of subunit F of the A1AO-ATP synthase from
the archaeon Methanosarcina mazei G\"o1. Here, we analyze the lifetimes of
fluorescence donor and acceptor dyes to distinguish between smFRET signals for
conformational changes and potential artefacts.Comment: 12 pages, 6 figure
Evaluation of genetic diversity for yield and quality parameters of different potato (Solanum tuberosum L.) germplasm
An investigation was carried out at Vegetable Research Centre, G.B. Pant University of Agriculture and Technology, Pantnagar during spring-summer season 2011 and 2012 to study the genetic diversity using Mahalanobis’s D2 – technique among thirty five potato (Solanum tuberosum L.) germplasm for important yield attributing and quality traits. The D2 values were calculated and thirty five potato genotypes were grouped into nine clusters for growth characters and ten clusters for quality traits respectively. All the genotypes included in the present investigation, were indigenous, but their grouping in different clusters, suggested that genotypes did not follow the geographic distribution. The cluster I contained the maximum number of genotypes with respect to both yield attributing and quality traits. The inter cluster distance in most of the cases were higher than the intra-cluster distance indicating wider genetic diversity among the genotypes of different groups. Average tuber weight of potato plant contributed maximum (31.76%), followed by number of tuber per plant (27.56%), internodal length (14.45%) and plant dry matter content (13.61%) for growth characters. For quality characters, ascorbic acid content (24.70%), protein content of tuber (20.84%) and TSS of tuber (20.00%) contributed effectively towards genetic divergence. So, these traits will offer a good scope for improvement of yield and quality through rational selection of parental genotypes for future potato breeding. The findings indicated that use of parents selected from the same cross or from a cross involving a common parent should be avoided in hybridization. The results broadly showed there was no parallelism between geographical and genetic divergence
Economic feasibility of summer squash cultivation using low tunnel and black plastic mulch under tarai condition of Uttarakhand
A study was undertaken to investigate the economic feasibility of summer squash cultivation in tarai region of Uttarakhand during winter - spring season of 2013-14 and 2014-15. Among three transplanting dates, summer squash transplanted on 15th January was found to be best with respect to plant growth characters, total yield (373.50 q ha-1), net return (`2,46,542 ha-1) and benefit – cost ratio (2.72). Similarly, out of three low cost protected techniques evaluated along with control, low tunnel with black plastic mulch was observed as best with respect to plant growth characters, total yield (451.67 q ha-1). Whereas, the maximum net return (`2,87,628 ha-1) and benefit - cost ratio (3.58) was obtained in black plastic mulched plots. Out of 12 treatment combinations, summer squash planted on 15th January under black polyethylene mulch is most profitable in terms of getting maximum benefit - cost ratio of 4.41. Hence, the same is recommended for commercial cultivation of summer squash at farmer’s field under tarai condition of Uttarakhand
Using MATSim as a Component in Dynamic Agent-Based Micro-Simulations
This paper discusses use of the widely used transport simulator, MATSim, as one component in a large complex agent based microsimulation where dynamic changes in the environment require the agents to be reactive as well as goal directed. We describe a number of refinements to MATSim that have been made to facilitate its use within our deployed wildfire evacuation applications, as well as some tools that have been developed which complement MATSim. All code is freely available under open source licenses. As applications increasingly require complex microsimulations, with many aspects, it is important to use existing software where possible. However most simulation systems, like MATSim, have been developed as standalone systems. We identify ways that MATSim has needed to be extended or modified in order for it to be used as a component in a larger whole. The paper provides details that will be useful for anyone wanting to use MATSim within their specific application
ICT in Universities of the Western Himalayan Region in India: Status, Performance- An Assessment
The present paper describes a live project study carried out for the
universities located in the western Himalayan region of India in the year 2009.
The objective of this study is to undertake the task of assessment regarding
initiative, utilization of ICT resources, its performance and impact in these
higher educational institutions/universities. In order to answer these,
initially basic four- tier framework was prepared. Followed by a questionnaire
containing different ICT components 18 different groups like vision, planning,
implementation, ICT infrastructure and related activities exhibiting
performance. Primary data in the form of feedback on the five point scale, of
the questionnaire, was gathered from six universities of the region. A simple
statistical analysis was undertaken using weighted mean, to assess the ICT
initiative, status and performance of various universities. In the process, a
question related to Performance Indicator was identified from each group, whose
Coefficient of Correlation was calculated. This study suggests that a
progressive vision, planning and initiative regarding academic syllabi, ICT
infrastructure, used in training the skilled human resource, is going to have a
favourable impact through actual placement, research and play a dominant role
at the National and International level.Comment: International Journal of Computer Science Issues, IJCSI Volume 6,
Issue 2, pp44-52, November 200
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