From centrality to intermediacy in the global transport network? Ukraine’s trials and tribulations as a potential transit country

Ukraine currently is in a very complex economic and political situation, which in itself represents a pivotal point for its further recovery and evolution. Nevertheless, the rise of economic centres in Eastern and Central Europe creates opportunities for Ukraine to develop short sea shipping services (via the Black Sea) and water and land-based hub-feeder networks to and from these areas. This paper provides an academic study of the potential of Ukraine in taking up a role in emerging distribution systems in East and Central Europe facilitating the cargo transportation from regions such as Central Asia, Caucasus and even more distant overseas areas. Based on the concepts of intermediacy and centrality as introduced by Fleming and Hayuth (1994) the role of Ukraine in the global and regional transport networks will be analysed in order to assess to what extent particular regions in Ukraine can serve as important gateways to Europe. An extensive review and synthesis of the published studies during the last 20 years on Ukraine’s transit flows and transit function will be presented. The obtained results will be contraposed to the results obtained from about 20 interviews conducted with transport business representatives in Ukraine and abroad. Based on the outcome of bottlenecks and deficiencies in Ukraine’s transport system, the optimal road map for Ukraine’s integration into the European transport network will be defined

A mathematical framework for modelling and evaluating natural gas pipeline networks under hydrogen injection

This article presents the framework of a mathematical formulation for modelling and evaluating natural gas pipeline networks under hydrogen injection. The model development is based on gas transport through pipelines and compressors which compensate for the pressure drops by implying mainly the mass and energy balances on the basic elements of the network. The model was initially implemented for natural gas transport and the principle of extension for hydrogen-natural gas mixtures is presented. The objective is the treatment of the classical fuel minimizing problem in compressor stations. The optimization procedure has been formulated by means of a nonlinear technique within the General Algebraic Modelling System (GAMS) environment. This work deals with the adaptation of the current transmission networks of natural gas to the transport of hydrogen-natural gas mixtures. More precisely, the quantitative amount of hydrogen that can be added to natural gas can be determined. The studied pipeline network,initially proposed by Abbaspour et al. (2005) is revisited here for the case of hydrogen-natural gas mixtures. Typical quantitative results are presented, showing that the addition of hydrogen to natural gas decreases significantly the transmitted power : the maximum fraction of hydrogen that can be added to natural gas is around 6 mass percent for this example

Source control SUDS strategic directions

Background to researchThe uptake or transition from traditional drainage to sustainable drainage (SUDS) in Scotland has happened in a relatively short timescale (less than fifteen years) with site and regional control drainage structures such as ponds and basins now considered ‘business as usual’. This rapid transition to SUDS has been facilitated by a stakeholder platform called the Sustainable Urban Drainage Scottish Working Party (SUDSWP) which has promoted their use since 1997. This has subsequently led to Scotland being regarded as a frontrunner in SUDS implementation in the UK. However the uptake of source control as part of a stormwater treatment train is less routine than expected. With the aforementioned in mind, this Phase Three Report seeks to answer the question ‘How can the national uptake of source control be encouraged and influenced by the SUDS Working Party and whether they should recast their remit’? Objectives of research Phase One of this research looked at the background to the evolution of source control in Scotland providing preliminary insight into the enabling factors and obstacles for uptake of the systems since inception in the mid 1990’s. Phase Two appraised source control delivery on a global scale providing insight to enabling factors out with Scotland and appraising current delivery in Scotland by responsible organisations. The transition pathway from traditional drainage to source control SUDS was mapped out to highlight what the key enabling (and disabling) factors were to realise the transition to date. This phase of the research, Phase Three defines the next steps including comment on optimal source control and further considerations and recommendations. This involved analysis and consolidation of the findings from Phases one and two, a workshop delivered to SUDSWP and two surveys delivered online and via telephone interviews with professionals involved in source control SUDS. These findings are used to define barriers and opportunities to inform the development of a strategy to support and encourage implementation of source control within SUDSWP remit.Key findings and recommendationsKey findings and recommendations for the SUDS Working Party are grouped according to transition management cluster activities:* Transition Arena: Strengthen links with internal members and external stakeholders who have a stake in source control SUDS and develop an integrated long-term vision.* Transition Agenda: Develop a shared strategic plan which considers aligning agendas with other infrastructure initiatives and enforcement / inspection policies to ensure cost effective, fit for purpose measures particularly in the areas of unit plot, local streets and regeneration areas.* Transition Experiments / case studies: Encourage research partnerships to validate techniques in the source control toolkit not yet applied in Scotland and showcase case studies.* Transition Monitoring / evaluation: undertake a baseline assessment to gauge source control uptake and performance, revise existing guidance and encourage capacity building programmes.<br/

Metrics for Graph Comparison: A Practitioner's Guide

Comparison of graph structure is a ubiquitous task in data analysis and machine learning, with diverse applications in fields such as neuroscience, cyber security, social network analysis, and bioinformatics, among others. Discovery and comparison of structures such as modular communities, rich clubs, hubs, and trees in data in these fields yields insight into the generative mechanisms and functional properties of the graph. Often, two graphs are compared via a pairwise distance measure, with a small distance indicating structural similarity and vice versa. Common choices include spectral distances (also known as $\lambda$ distances) and distances based on node affinities. However, there has of yet been no comparative study of the efficacy of these distance measures in discerning between common graph topologies and different structural scales. In this work, we compare commonly used graph metrics and distance measures, and demonstrate their ability to discern between common topological features found in both random graph models and empirical datasets. We put forward a multi-scale picture of graph structure, in which the effect of global and local structure upon the distance measures is considered. We make recommendations on the applicability of different distance measures to empirical graph data problem based on this multi-scale view. Finally, we introduce the Python library NetComp which implements the graph distances used in this work

New trends in data mining.

Trends; Data; Data mining;

Sustained home visiting for vulnerable families and children: a review of effective processes and strategies

Parenting young children has become a more complex and stressful business, especially for those families in our community with the least resources (Grose, 2006; Hayes et al, 2010; Poole, 2004; Richardson &amp; Prior, 2005; Trask, 2010). A widening gap exists between families that function well and those that are vulnerable. The paradox of service delivery for children and families is that vulnerable families – that is, those families with the greatest needs – are also the least likely to be able to access those services (Ghate &amp; Hazel, 2002; Fram, 2003). A range of barriers exist for vulnerable and at risk families in making use of services (Carbone et al, 2004). One of the key barriers to vulnerable families accessing services is that many find it difficult to relate to the formal service system and are easily alienated by practices others find acceptable. Research regarding parents’ experiences of support services suggests that parents want services where they are simultaneously cared for and enabled in their role as parents, and to receive services characterised by empathy, competence, functionality, respect, flexibility and honesty (Attride-Stirling et al, 2001; Winkworth et al, 2009). Vulnerable parents fear a loss of autonomy in their interactions with support services and want services that are non-judgemental and that provide continuity of care (Ghate &amp; Hazel, 2002; von Bultzingslowen, 2006). In addition to the barriers faced by vulnerable and marginalised families in accessing services, the system does not work in an integrated or coherent fashion to ensure that all children and families needing support receive it. Furthermore, the vast majority of services for children and families in Australia do not have an outreach function, that is, a means of engaging these vulnerable and at risk families who are in need of support but use services inconsistently or not at all. In short, the service system was not designed to meet the needs of vulnerable families within the context of a rapidly changing social and economic climate. Therefore, many families requiring support are not receiving it. Related identifier: ISSN 2204-340

SciTech News Volume 71, No. 2 (2017)

Columns and Reports From the Editor 3 Division News Science-Technology Division 5 Chemistry Division 8 Engineering Division 9 Aerospace Section of the Engineering Division 12 Architecture, Building Engineering, Construction and Design Section of the Engineering Division 14 Reviews Sci-Tech Book News Reviews 16 Advertisements IEEE

Understanding the UK hospital supply chain in an era of patient choice

Author Posting © Westburn Publishers Ltd, 2011. This is a post-peer-review, pre-copy-edit version of an article which has been published in its definitive form in the Journal of Marketing Management, and has been posted by permission of Westburn Publishers Ltd for personal use, not for redistribution. The article was published in Journal of Marketing Management, 27(3-4), 401 - 423, doi:10.1080/0267257X.2011.547084 http://dx.doi.org/10.1080/0267257X.2011.547084The purpose of this paper is to investigate the UK hospital supply chain in light of recent government policy reform where patients will have, inter alia, greater choice of hospital for elective surgery. Subsequently, the hospital system should become far more competitive with supply chains having to react to these changes as patient demand becomes less predictable. Using a qualitative case study methodology, hospital managers are interviewed on a range of issues. Views on the development of the hospital supply chain in different phases are derived, and are used to develop a map of the current hospital chain. The findings show hospital managers anticipating some significant changes to the hospital supply chain and its workings as Patient Choice expands. The research also maps the various aspects of the hospital supply chain as it moves through different operational phases and highlights underlying challenges and complexities. The hospital supply chain, as discussed and mapped in this research, is original work given there are no examples in the literature that provide holistic representations of hospital activity. At the end, specific recommendations are provided that will be of interest to service to managers, researchers, and policymakers

Monitoring pulmonary rehabilitation and long-term oxygen therapy for people with chronic obstructive pulmonary disease (COPD)

This report outlines a proposed approach to monitoring access to, and utilisation of, pulmonary rehabilitation and long term oxygen therapy, by capitalising on existing data sources and identifying data development opportunities.SummaryChronic obstructive pulmonary disease (COPD) is a major cause of death and disability in Australia. About 1 in 13 people aged 40 and over have lung function consistent with a diagnosis of COPD. The disease develops over many years and therefore mainly affects middle-aged and older people. Smoking is its main, but not only, cause. Current clinical guidelines for the management of COPD (developed by the Thoracic Society of Australia and New Zealand and Lung Foundation Australia) emphasise the importance of care that encompasses both drug and non-drug based interventions designed to improve quality of life and survival. Pulmonary rehabilitation is a system of care that includes a combination of exercise, education and psychosocial support. It has been shown to have a wide range of beneficial effects, particularly because of its exercise component. Pulmonary rehabilitation implemented after a hospital admission reduces the risk of re-hospitalisation and death, and improves quality of life. Selective use of long-term oxygen therapy (LTOT)-the provision of supplemental oxygen therapy for 15 hours per day or more for people with COPD who have persistently low levels of oxygen in their blood-has been shown to improve quality of life and improve survival. Both of these therapies are among the key non-pharmacological interventions recommended in national and international clinical guidelines. Available evidence suggests, however, that pulmonary rehabilitation and LTOT are under-utilised in managing patients with COPD in Australia. The full extent of service provision, utilisation and under-utilisation is not known as there are no national data. This report outlines: proposed indicators relevant to monitoring access to, and utilisation of, pulmonary rehabilitation and LTOT in Australiaexisting data sources that may inform these indicatorsoptions for data developmentpotential challenges in monitoring these therapies. Improved information about access to, and use of, these interventions among people with COPD would enable: identification of opportunities for health improvementmeasurement of the benefits derived from these interventions. This would form a useful basis for data development to support assessment of the appropriateness of use, barriers to uptake and outcomes of these therapies. Similar information about the provision of non-inpatient, non-procedural and non- pharmaceutical therapies is also relevant to monitoring other chronic diseases in which these interventions improve quality of life and extend life.&nbsp;The authors of this report are Guy Marks, Helen Reddel, Elyse Guevara-Rattray, Leanne Poulos and Rosario Ampon of the Australian Centre for Asthma Monitoring (ACAM)