The moving targets algorithm for difficult temporal credit assignment problems

The 'moving targets' algorithm for training recurrent networks is reviewed and applied to a task which demonstrates the ability of this algorithm to use distant contextual information. Some practical difficulties are discussed, especially with regard to the minimization process. Results on performance and computational requirements of several different 2nd-order minimization algorithms are presented for moving target problems.

A cross-national comparative study of the roles of men in contemporary France and Britain

The purpose of this thesis is to increase understanding and contribute to knowledge about the attitudes and behaviour of men in contemporary France and Britain. The thesis has three main aims: firstly, to provide the first cross-national comparison of French and British writing and research on the place of men in contemporary society; secondly, to identify similarities and differences in the roles of men in France and Britain; and thirdly, to determine to what extent and in what way such similarities and differences are linked to the social structures and cultural background of each country. The thesis focuses on two main facets of the male experience: the relationship between men and women and the interaction between fathers and their children. Men's attitudes and behaviour are examined in relation to issues such as the division of household tasks and child care within the family, parental roles, female employment, role reversal, gender stereotyping and changes towards a new image of masculinity in society. Particular consideration is given to differences in governmental attitudes in France and Britain towards the introduction of family policy measures for men as fathers. The thesis ends with a discussion of legislative, social and educational measures which could be introduced in France and Britain in order to promote greater flexibility in men's roles and consequently improve gender equality in each country. The data analysed in the thesis are derived from a questionnaire-based empirical study involving 101 men in Britain and seventy-five men in France. The respondents' experience of and attitudes towards their roles in society are analysed and interpreted in the light of profile data relating to their family circumstances and with reference to knowledge about the broader socio-cultural context.

Investigating Turkey's national innovation and learning system

The national systems of innovation (NIS) approach focuses on the patterns and the determinants of innovation processes from the perspective of nation-states. This paper reports on continuing work on the application of an NIS model to the development of technological capability in Turkey. Initial assessment of the literature shows that there are a number of alternative conceptualisations of NIS. An attempt by the Government to identify a NIS for Turkey shows the main actors in the system but does not pay sufficient attention to the processes of interactions between agents within the system. An operational model should be capable of representing these processes and interactions and assessing the strengths and weaknesses of the NIS. For industrialising countries, it is also necessary to incorporate learning mechanisms into the model. Further, there are different levels of innovation and capability in different sectors which the national perspective may not reflect. This paper is arranged into three sections. The first briefly explains the basics of the national innovation and learning system. Although there is no single accepted definition of NIS, alternative definitions reviewed share some common characteristics. In the second section, an NIS model is applied to Turkey in order to identify the elements, which characterise the country’s NIS. This section explains knowledge flow and defines the relations between the actors within the system. The final section draws on the “from imitation to innovation” model apparently so successful in East Asia and assesses its applicability to Turkey. In assessing Turkey’s NIS, the focus is on the automotive and textile sectors.

The role of government research establishments : a study of the concept of public patronage for applied research and development

This thesis follows the argument that, to fully understand the current position of national research laboratories in Great Britain one needs to study the historical development of the government research establishment as a specific social institution. A particular model is outlined in which it is argued that institutional characteristics evolve through the continual interplay between internal development and environmental factors within a changing political and economic context, and that the continuous development of an institution depends on its ability to adapt to changes in its operational environment. Within this framework important historical precedents for formal government institutional support for applied research are identified. and the transition from private to public patronage documented. The emergence and consolidation of government research laboratories in Britain is described in detail. The subsequent relative decline of public laboratories is interpreted in terms of the undermining of a traditional role resulting in legitimation crisis. It is concluded that it is no longer feasible to consider the public research laboratory as a coherent institutional form, and that the future of each individual laboratory can only be considered in relation to the institutional needs of its own sphere of operation. Nevertheless the laboratories have been forced into decline in an essentially unplanned way which may have serious consequences for the maintenance of the scientific and technical infrastructures, necessary for material progress in the national context.

A cross-national investigation into the marketing department's influence within the firm:toward initial empirical generalizations

An ongoing strong debate within the marketing discipline concerns the role of marketing within the firm. It has been frequently reported that the marketing function is in a deep decline. Marketing executives and academics alike are interested in the antecedents of this decline and potential performance consequences of this decline. Recent academic research have started investigations on this important topic. Using studies in single countries innovativeness and accountability of the marketing department has been reported as major antecedents of the influence of the marketing department within the organization. Academic research, however, does not provide convincing evidence for a direct link between this influence and business performance. Instead it shows that market orientation is a crucial intervening variable, as marketing department influence is positively related market orientation, which subsequently positively related to business performance. As noted prior research, however, studies firms in single countries. In this article we execute a cross-national study on the antecedents and performance consequences of marketing department influence in order to derive initial empirical generalizations. This study is executed in seven Western-oriented countries, including USA, UK, The Netherlands, Germany, Sweden, Israel and Australia. The study heavily builds on the framework developed in the 2009 Journal of Marketing article of Verhoef and Leeflang. This framework is tested per country and subsequently meta-analytic tests are used to derive initial empirical generalizations. An important empirical generalization is that innovativeness, the customer-connecting capabilities, and accountability of the marketing department are positively related to marketing department influence. Interestingly, a second initial generalization is that creativity of the marketing negative induces less influence. Our results also show a third empirical generalization in that firms having a CEO with a marketing background tend to have more influential marketing departments. Confirming prior research a fourth initial empirical generalization is that MD influence measures and market orientation are positively related. Market orientation is subsequently positively related to business performance. Our most important generalization is, however, that MD influence is positively related to business performance. Hence, beyond striving to become market oriented, firms should also aim to have strong marketing departments. These departments can create a stronger focus on the customer and can also coordinate marketing efforts. In order to become more influential marketing departments should: (1) acquire innovative capabilities, (2) be more connected to customers, (3) invest in accountability, and (4) be careful with be careful being too creative.

Performance-based vs socially supportive culture:a cross-national study of descriptive norms and entrepreneurship

This paper is a cross-national study testing a framework relating cultural descriptive norms to entrepreneurship in a sample of 40 nations. Based on data from the Global Leadership and Organizational Behavior Effectiveness project, we identify two higher-order dimensions of culture – socially supportive culture (SSC) and performance-based culture (PBC) – and relate them to entrepreneurship rates and associated supply-side and demand-side variables available from the Global Entrepreneurship Monitor. Findings provide strong support for a social capital/SSC and supply-side variable explanation of entrepreneurship rate. PBC predicts demand-side variables, such as opportunity existence and the quality of formal institutions to support entrepreneurship.

Transmission comparison of ultra-long Raman fibre laser based amplification with first and dual order Raman amplification using 10×118 Gbit/s DP-QPSK

Experimental investigations of 10×118 Gbit/s DP-QPSK WDM transmission using three types of distributed Raman amplification techniques are presented. Novel ultra-long Raman fibre laser based amplification with second order counter-propagated pumping is compared with conventional first order and dual order counter-pumped Raman amplification. We demonstrate that URFL based amplification can extend the transmission reach up to a distance of 7520 km in comparison with 5010 km and 6180 km using first order and dual order Raman amplification respectively. © 2014 IEEE.

A model to assess the cost effectiveness of statins in achieving the UK National Service Framework target cholesterol levels

Background: Coronary heart disease (CHD) is a public health priority in the UK. The National Service Framework (NSF) has set standards for the prevention, diagnosis and treatment of CHD, which include the use of cholesterol-lowering agents aimed at achieving targets of blood total cholesterol (TC) < 5.0 mmol/L and low density lipoprotein-cholesterol (LDL-C) < 3.0 mmol/L. In order to achieve these targets cost effectively, prescribers need to make an informed choice from the range of statins available. Aim: To estimate the average and relative cost effectiveness of atorvastatin, fluvastatin, pravastatin and simvastatin in achieving the NSF LDL-C and TC targets. Design: Model-based economic evaluation. Methods: An economic model was constructed to estimate the number of patients achieving the NSF targets for LDL-C and TC at each dose of statin, and to calculate the average drug cost and incremental drug cost per patient achieving the target levels. The population baseline LDL-C and TC, and drug efficacy and drug costs were taken from previously published data. Estimates of the distribution of patients receiving each dose of statin were derived from the UK national DIN-LINK database. Results: The estimated annual drug cost per 1000 patients treated with atorvastatin was £289 000, with simvastatin £315 000, with pravastatin £333 000 and with fluvastatin £167 000. The percentages of patients achieving target are 74.4%, 46.4%, 28.4% and 13.2% for atorvastatin, simvastatin, pravastatin and fluvastatin, respectively. Incremental drug cost per extra patient treated to LDL-C and TC targets compared with fluvastafin were £198 and £226 for atorvastatin, £443 and £567 for simvastatin and £1089 and £2298 for pravastatin, using 2002 drug costs. Conclusions: As a result of its superior efficacy, atorvastatin generates a favourable cost-effectiveness profile as measured by drug cost per patient treated to LDL-C and TC targets. For a given drug budget, more patients would achieve NSF LDL-C and TC targets with atorvastatin than with any of the other statins examined.

Cross-national differences in e-WOM influence

Purpose: This paper aims to present a cross-national study that investigates changes in purchase intentions of UK versus Chinese consumers following exposure to successive e-WOM comments in the form of positive and negative user reviews for experience versus search products. Design/methodology/approach: A 2(e-WOM valence and order: negative versus positive most recent)×2(product type: experience versus search)×3(purchase intentions at t 1, t 2, t 3) repeated-measures factorial design is used to test a set of hypotheses developed from the literature. Findings: Chinese consumers are susceptible to recent e-WOM comments regardless of their valence, while UK consumers anchor on negative information regardless of the order in which it is acquired. This holds particularly for experience products. Originality/value: This cross-national study contributes to the scarce literature on the impact of e-WOM on consumer purchase decisions by comparing UK and Chinese consumers. The authors suggest that culture moderates the development of product evaluations following exposure to e-WOM. © Emerald Group Publishing Limited.

Copyright law as a matter of (inter)national security? – The attempt to securitise commercial infringement and its spill-over onto individual liability

This article evaluates the way in which copyright infringement has been gradually shifting from an area of civil liability to one of criminal penalty. Traditionally, consideration of copyright issues has been undertaken from a predominantly legal and/or economic perspectives. Whereas traditional legal analysis can explain what legal changes are occurring, and what impact these changes may have, they may not effectively explain ‘how’ these changes have come to occur. The authors propose an alternative inter-disciplinary approach, combining legal analysis with critical security studies, which may help to explain in greater detail how policies in this field have developed. In particular, through applied securitisation theory, this article intends to demonstrate the appropriation of this field by a security discourse, and its consequences for societal and legal developments. In order to explore how the securitisation framework may be a valid approach to a subject such as copyright law and to determine the extent to which copyright law may be said to have been securitised, this article will begin by explaining the origins and main features of securitisation theory, and its applicability to legal study. The authors will then attempt to apply this framework to the development of a criminal law approach to copyright infringement, by focusing on the security escalation it has undergone, developing from an economic issue into one of international security. The analysis of this evolution will be mainly characterised by the securitisation moves taking place at national, European and international levels. Finally, a general reflection will be carried out on whether the securitisation of copyright has indeed been successful and on what the consequences of such a success could be.