Artykuły w czasopismach na temat „Non-Interactive Key Agreement”

Nowadays, sensor networks are one of the hottest scientific issues. A lot of research has been done to improve their efficiency. Wireless Sensor Networks (WSN) are applied as an important and efficient technology in many industries such as military operations, security systems, intelligent transportation systems, medics, agriculture, and many others. Key agreement is a challenging point in the security of these networks. Sensor nodes connect to each other using cryptography techniques, however, use of the classic key management techniques such as key distribution center is inefficient because of resource-constrained nature of the sensor nodes. This paper proposes a hierarchical multiple key agreement scheme. In the proposed scheme, two nodes can produce multiple session keys, just with only one run of the key agreement protocol by two nodes in the hierarchical system. As well as its efficiency, this new scheme is based on identity and non-interactive protocol. Being zero-knowledge proof is another advantage of the scheme.

Distributed Sensor Networks are broadly used in many applications and key distribution is a challenging task. In this work, a key management scheme is developed for distributed sensor networks based on elliptic curve cryptography over prime field. Key distribution among the nodes and interactive as well as non interactive protocols for agreement of common secret key for message transmission between two nodes are discussed. The probability for connectivity of the network generated according to the proposed key distribution scheme is discussed in detail. The implementation of the proposed scheme is done using NetSim interfaced with MATLAB. Connectivity of the network is also checked through eigenvalues of the Laplacian matrix of the network.

Distributed Sensor Networks are broadly used in many applications and key distribution is a challenging task. In this work, a key management scheme is developed for distributed sensor networks based on elliptic curve cryptography over prime field. Key distribution among the nodes and interactive as well as non interactive protocols for agreement of common secret key for message transmission between two nodes are discussed. The probability for connectivity of the network generated according to the proposed key distribution scheme is discussed in detail. The implementation of the proposed scheme is done using NetSim interfaced with MATLAB. Connectivity of the network is also checked through eigenvalues of the Laplacian matrix of the network.

Internet of Things devices are responsible for collecting and transmitting data in smart cities, assisting smart cities to release greater potential. As Internet of Things devices are increasingly connected to smart cities, security and privacy have gradually become important issues. Recently, research works on mitigating security challenges of Internet of Things devices in smart cities mainly focused on authentication. However, in most of the existing authentication protocols, the trustworthiness evaluation of Internet of Things devices in smart cities is ignored. Considering the trustworthiness evaluation of Internet of Things devices is an important constituent of data source authentication, in this article, a cloud-aided trustworthiness evaluation mechanism is first designed to improve the credibility of the Internet of Things devices in smart cities. Furthermore, aiming at the problem that the user’s privacy is easy to leak in the process of authentication, an anonymous authentication and key agreement scheme based on non-interactive zero knowledge argument is proposed. The proposed scheme can ensure the privacy preservation and data security of Internet of Things devices in smart cities. The security analysis demonstrates that the proposed scheme is secure under q-SDH problem. The experimental simulation indicates that the performance of the proposal is greatly improved compared with other similar schemes.

Private signature is a signature which provides signature privacy and restricted transference. Using the private scheme a user can sign a message in such a way that only a designated verifier can verify the signature. In some cases, the signer may want to preserve the privacy forever, which means that the initial verifier should not be able to convince anyone else of the fact that the signer signed the message. In some other cases, the signer may want to give the initial verifier the possibility to transfer his conviction to someone else, if desired. In this paper we first review the private signatures proposed by Javier Herranz, and point its drawback. Then we propose efficient private signature by combining a secure signature scheme and a non-interactive one-way key agreement.

Abstract. We present a description and evaluation of LMDz-INCA, a global three-dimensional chemistry-climate model, pertaining to its recently developed NMHC version. In this substantially extended version of the model a comprehensive representation of the photochemistry of non-methane hydrocarbons (NMHC) and volatile organic compounds (VOC) from biogenic, anthropogenic, and biomass-burning sources has been included. The tropospheric annual mean methane (9.2 years) and methylchloroform (5.5 years) chemical lifetimes are well within the range of previous modelling studies and are in excellent agreement with estimates established by means of global observations. The model provides a reasonable simulation of the horizontal and vertical distribution and seasonal cycle of CO and key non-methane VOC, such as acetone, methanol, and formaldehyde as compared to observational data from several ground stations and aircraft campaigns. LMDz-INCA in the NMHC version reproduces tropospheric ozone concentrations fairly well throughout most of the troposphere. The model is applied in several sensitivity studies of the biosphere-atmosphere photochemical feedback. The impact of surface emissions of isoprene, acetone, and methanol is studied. These experiments show a substantial impact of isoprene on tropospheric ozone and carbon monoxide concentrations revealing an increase in surface O3 and CO levels of up to 30 ppbv and 60 ppbv, respectively. Isoprene also appears to significantly impact the global OH distribution resulting in a decrease of the global mean tropospheric OH concentration by approximately 0.7×105 molecules cm-3 or roughly 8% and an increase in the global mean tropospheric methane lifetime by approximately seven months. A global mean ozone net radiative forcing due to the isoprene induced increase in the tropospheric ozone burden of 0.09 W m-2 is found. The key role of isoprene photooxidation in the global tropospheric redistribution of NOx is demonstrated. LMDz-INCA calculates an increase of PAN surface mixing ratios ranging from 75 to 750 pptv and 10 to 250 pptv during northern hemispheric summer and winter, respectively. Acetone and methanol are found to play a significant role in the upper troposphere/lower stratosphere (UT/LS) budget of peroxy radicals. Calculations with LMDz-INCA show an increase in HOx concentrations region of 8 to 15% and 10 to 15% due to methanol and acetone biogenic surface emissions, respectively. The model has been used to estimate the global tropospheric CO budget. A global CO source of 3019 Tg CO yr-1 is estimated. This source divides into a primary source of 1533 Tg CO yr-1 and secondary source of 1489 Tg CO yr-1 deriving from VOC photooxidation. Global VOC-to-CO conversion efficiencies of 90% for methane and between 20 and 45% for individual VOC are calculated by LMDz-INCA.

AbstractBreast cancer is now the most commonly diagnosed cancer worldwide. Approximately 30% of those who present with early breast cancer later develop advanced breast cancer (ABC). Additionally, approximately 6% have advanced breast cancer at diagnosis. New treatment options result in an extended lifespan dominated by cycles of deterioration and stable disease. Specialist nurse knowledge is key to multidisciplinary care of people with ABC; however, access to education on ABC for nurses is not universally available in Europe. This paper describes the development and implementation of an online bespoke program on ABC care for specialist and generalist nurses in Europe. The project team is affiliated with the European Oncology Nurses Society (EONS) and comprises specialist breast cancer nurses, oncology nurse academics and breast cancer advocates associated with EUROPA DONNA Turkey, an independent non-profit European breast cancer organisation. The program development involved (1) a systematic review of ABC educational resources for cancer nurses; (2) a modified four-round Delphi study to seek agreement on curriculum content and (3) curriculum development, conversion to an interactive online platform and translation into four European languages. The program evaluation will be guided by Kirkpatrick’s framework. The phases described in this short report could guide others involved in developing bespoke cancer education programs.

Abstract Background The outcome of endodontic treatment is generally assessed using a range of patient and clinician-centred, non-standardised clinical and radiographic outcome measures. This makes it difficult to synthesise evidence for systematic analysis of the literature and the development of clinical guidelines. Core outcome sets (COS) represent a standardised list of outcomes that should be measured and reported in all clinical studies in a particular field. Recently, clinical researchers and guideline developers have focussed on the need for the integration of a patient-reported COS with clinician-centred measures. This study aims to develop a COS that includes both patient-reported outcomes and clinician-centred measures for various endodontic treatment modalities to be used in clinical research and practice. Methods To identify reported outcomes (including when and how they are measured), systematic reviews and their included clinical studies, which focus on the outcome of endodontic treatment and were published between 1990 and 2020 will be screened. The COSs will be defined by a consensus process involving key stakeholders using semi-structured interviews and an online Delphi methodology followed by an interactive virtual consensus meeting. A heterogeneous group of key ‘stakeholders’ including patients, general dental practitioners, endodontists, endodontic teachers, clinical researchers, students and policy-makers will be invited to participate. Patients will establish, via interactive interviews, which outcomes they value and feel should be included in a COS. In the Delphi process, other stakeholders will be asked to prioritise outcomes identified from the literature and patient interviews and will have the opportunity at the end of the first round to add outcomes that are not included, but which they consider relevant. Feedback will be provided in the second round, when participants will be asked to prioritise the list again. If consensus is reached, the remaining outcomes will be discussed at an online meeting and agreement established via defined consensus rules of outcome inclusion. If consensus is not reached after the second round, a third round will be conducted with feedback, followed by the online meeting. Following the identification of a COS, we will proceed to identify how and when these outcomes are measured. Discussion Using a rigorous methodology, the proposed consensus process aims to develop a COS for endodontic treatment that will be relevant to stakeholders. The results of the study will be shared with participants and COS users. To increase COS uptake, it will also be actively shared with clinical guideline developers, research funders and the editors of general dental and endodontology journals. Trial registration COMET 1879. 21 May 2021.

For the past twenty years, academics and other social commentators have, by and large, shared the view that the phase of modernity through which we are currently passing is defined by two interrelated catalysts of change: the physical movement of people and the virtual movement of information around the globe. As we enter the second decade of the new millennium, it is certainly a timely moment to reflect upon the ways in which the prognoses of the scholars and scientists writing in the late twentieth century have come to pass, especially since—during the time this special issue has been in press—the revolutions that are gathering pace in the Arab world appear to be realising the theoretical prediction that the ever-increasing “flows” of people and information would ultimately bring about the end of the nation-state and herald an era of transnationalism (Appadurai, Urry). For writers like Arjun Appadurai, moreover, the concept of diaspora was key to grasping how this new world order would take shape, and how it would operate: Diasporic public spheres, diverse amongst themselves, are the crucibles of a postnational political order. The engines of their discourse are mass media (both interactive and expressive) and the movement of refugees, activists, students, laborers. It may be that the emergent postnational order proves not to be a system of homogeneous units (as with the current system of nation-states) but a system based on relations between heterogeneous units (some social movements, some interest groups, some professional bodies, some non-governmental organizations, some armed constabularies, some judicial bodies) ... In the short run, as we can see already, it is likely to be a world of increased incivility and violence. In the longer run, free from the constraints of the nation form, we may find that cultural freedom and sustainable justice in the world do not presuppose the uniform and general existence of the nation-state. This unsettling possibility could be the most exciting dividend of living in modernity at large. (23) In this editorial, we would like to return to the “here and now” of the late 1990s in which theorists like Arjun Appaduri, Ulrich Beck, John Urry, Zygmunt Bauman, Robert Robertson and others were “imagining” the consequences of both globalisation and glocalisation for the twenty-first century in order that we may better assess what is, indeed, coming to pass. While most of their prognoses for this “second modernity” have proven remarkably accurate, it is their—self-confessed—inability to forecast either the nature or the extent of the digital revolution that most vividly captures the distance between the mid-1990s and now; and it is precisely the consequences of this extraordinary technological revolution on the twin concepts of “glocality” and “diaspora” that the research featured in this special issue seeks to capture. Glocal Imaginaries Appadurai’s endeavours to show how globalisation was rapidly making itself felt as a “structure of feeling” (Williams in Appadurai 189) as well as a material “fact” was also implicit in our conceptualisation of the conference, “Glocal Imaginaries: Writing/Migration/Place,” which gave rise to this special issue. This conference, which was the culmination of the AHRC-funded project “Moving Manchester: Literature/Migration/Place (2006-10)”, constituted a unique opportunity to gain an international, cross-disciplinary perspective on urgent and topical debates concerning mobility and migration in the early twenty-first century and the strand “Networked Diasporas” was one of the best represented on the program. Attracting papers on broadcast media as well as the new digital technologies, the strand was strikingly international in terms of the speakers’ countries of origin, as is this special issue which brings together research from six European countries, Australia and the Indian subcontinent. The “case-studies” represented in these articles may therefore be seen to constitute something of a “state-of-the-art” snapshot of how Appadurai’s “glocal imaginary” is being lived out across the globe in the early years of the twenty-first century. In this respect, the collection proves that his hunch with regards to the signal importance of the “mass-media” in redefining our spatial and temporal coordinates of being and belonging was correct: The third and final factor to be addressed here is the role of the mass-media, especially in its electronic forms, in creating new sorts of disjuncture between spatial and virtual neighborhoods. This disjuncture has both utopian and dystopian potentials, and there is no easy way to tell how these may play themselves out in the future of the production of locality. (194) The articles collected here certainly do serve as testament to the “bewildering plethora of changes in ... media environments” (195) that Appadurai envisaged, and yet it can clearly also be argued that this agent of glocalisation has not yet brought about the demise of the nation-state in the way (or at the speed) that many commentators predicted. Digital Diasporas in a Transnational World Reviewing the work of the leading social science theorists working in the field during the late 1990s, it quickly becomes evident that: (a) the belief that globalisation presented a threat to the nation-state was widely held; and (b) that the “jury” was undecided as to whether this would prove a good or bad thing in the years to come. While the commentators concerned did their best to complexify both their analysis of the present and their view of the future, it is interesting to observe, in retrospect, how the rhetoric of both utopia and dystopia invaded their discourse in almost equal measure. We have already seen how Appadurai, in his 1996 publication, Modernity at Large, looks beyond the “increased incivility and violence” of the “short term” to a world “free from the constraints of the nation form,” while Roger Bromley, following Agamben and Deleuze as well as Appadurai, typifies a generation of literary and cultural critics who have paid tribute to the way in which the arts (and, in particular, storytelling) have enabled subjects to break free from their national (af)filiations (Pearce, Devolving 17) and discover new “de-territorialised” (Deleuze and Guattari) modes of being and belonging. Alongside this “hope,” however, the forces and agents of globalisation were also regarded with a good deal of suspicion and fear, as is evidenced in Ulrich Beck’s What is Globalization? In his overview of the theorists who were then perceived to be leading the debate, Beck draws distinctions between what was perceived to be the “engine” of globalisation (31), but is clearly most exercised by the manner in which the transformation has taken shape: Without a revolution, without even any change in laws or constitutions, an attack has been launched “in the normal course of business”, as it were, upon the material lifelines of modern national societies. First, the transnational corporations are to export jobs to parts of the world where labour costs and workplace obligations are lowest. Second, the computer-generation of worldwide proximity enables them to break down and disperse goods and services, and produce them through a division of labour in different parts of the world, so that national and corporate labels inevitably become illusory. (3; italics in the original) Beck’s concern is clearly that all these changes have taken place without the nation-states of the world being directly involved in any way: transnational corporations began to take advantage of the new “mobility” available to them without having to secure the agreement of any government (“Companies can produce in one country, pay taxes in another and demand state infrastructural spending in yet another”; 4-5); the export of the labour market through the use of digital communications (stereotypically, call centres in India) was similarly unregulated; and the world economy, as a consequence, was in the process of becoming detached from the processes of either production or consumption (“capitalism without labour”; 5-7). Vis-à-vis the dystopian endgame of this effective “bypassing” of the nation-state, Beck is especially troubled about the fate of the human rights legislation that nation-states around the world have developed, with immense effort and over time (e.g. employment law, trade unions, universal welfare provision) and cites Zygmunt Bauman’s caution that globalisation will, at worst, result in widespread “global wealth” and “local poverty” (31). Further, he ends his book with a fully apocalyptic vision, “the Brazilianization of Europe” (161-3), which unapologetically calls upon the conventions of science fiction to imagine a worst-case scenario for a Europe without nations. While fourteen or fifteen years is evidently not enough time to put Beck’s prognosis to the test, most readers would probably agree that we are still some way away from such a Europe. Although the material wealth and presence of the transnational corporations strikes a chord, especially if we include the world banks and finance organisations in their number, the financial crisis that has rocked the world for the past three years, along with the wars in Iraq and Afghanistan, and the ascendancy of Al-Qaida (all things yet to happen when Beck was writing in 1997), has arguably resulted in the nations of Europe reinforcing their (respective and collective) legal, fiscal, and political might through rigorous new policing of their physical borders and regulation of their citizens through “austerity measures” of an order not seen since World War Two. In other words, while the processes of globalisation have clearly been instrumental in creating the financial crisis that Europe is presently grappling with and does, indeed, expose the extent to which the world economy now operates outside the control of the nation-state, the nation-state still exists very palpably for all its citizens (whether permanent or migrant) as an agent of control, welfare, and social justice. This may, indeed, cause us to conclude that Bauman’s vision of a world in which globalisation would make itself felt very differently for some groups than others came closest to what is taking shape: true, the transnationals have seized significant political and economic power from the nation-state, but this has not meant the end of the nation-state; rather, the change is being experienced as a re-trenching of whatever power the nation-state still has (and this, of course, is considerable) over its citizens in their “local”, everyday lives (Bauman 55). If we now turn to the portrait of Europe painted by the articles that constitute this special issue, we see further evidence of transglobal processes and practices operating in a realm oblivious to local (including national) concerns. While our authors are generally more concerned with the flows of information and “identity” than business or finance (Appaduri’s “ethnoscapes,” “technoscapes,” and “ideoscapes”: 33-7), there is the same impression that this “circulation” (Latour) is effectively bypassing the state at one level (the virtual), whilst remaining very materially bound by it at another. In other words, and following Bauman, we would suggest that it is quite possible for contemporary subjects to be both the agents and subjects of globalisation: a paradox that, as we shall go on to demonstrate, is given particularly vivid expression in the case of diasporic and/or migrant peoples who may be able to bypass the state in the manufacture of their “virtual” identities/communities) but who (Cohen) remain very much its subjects (or, indeed, “non-subjects”) when attempting movement in the material realm. Two of the articles in the collection (Leurs & Ponzanesi and Marcheva) deal directly with the exponential growth of “digital diasporas” (sometimes referred to as “e-diasporas”) since the inception of Facebook in 2004, and both provide specific illustrations of the way in which the nation-state both has, and has not, been transcended. First, it quickly becomes clear that for the (largely) “youthful” (Leurs & Ponzanesi) participants of nationally inscribed networking sites (e.g. “discovernikkei” (Japan), “Hyves” (Netherlands), “Bulgarians in the UK” (Bulgaria)), shared national identity is a means and not an end. In other words, although the participants of these sites might share in and actively produce a fond and nostalgic image of their “homeland” (Marcheva), they are rarely concerned with it as a material or political entity and an expression of their national identities is rapidly supplemented by the sharing of other (global) identity markers. Leurs & Ponzanesi invoke Deleuze and Guattari’s concept of the “rhizome” to describe the way in which social networkers “weave” a “rhizomatic path” to identity, gradually accumulating a hybrid set of affiliations. Indeed, the extent to which the “nation” disappears on such sites can be remarkable as was also observed in our investigation of the digital storytelling site, “Capture Wales” (BBC) (Pearce, "Writing"). Although this BBC site was set up to capture the voices of the Welsh nation in the early twenty-first century through a collection of (largely) autobiographical stories, very few of the participants mention either Wales or their “Welshness” in the stories that they tell. Further, where the “home” nation is (re)imagined, it is generally in an idealised, or highly personalised, form (e.g. stories about one’s own family) or through a sharing of (perceived and actual) cultural idiosyncrasies (Marcheva on “You know you’re a Bulgarian when …”) rather than an engagement with the nation-state per se. As Leurs & Ponzanesi observe: “We can see how the importance of the nation-state gets obscured as diasporic youth, through cultural hybridisation of youth culture and ethnic ties initiate subcultures and offer resistance to mainstream cultural forms.” Both the articles just discussed also note the shading of the “national” into the “transnational” on the social networking sites they discuss, and “transnationalism”—in the sense of many different nations and their diasporas being united through a common interest or cause—is also a focus of Pikner’s article on “collective actions” in Europe (notably, “EuroMayDay” and “My Estonia”) and Harb’s highly topical account of the role of both broadcast media (principally, Al-Jazeera) and social media in the revolutions and uprisings currently sweeping through the Arab world (spring 2011). On this point, it should be noted that Harb identifies this as the moment when Facebook’s erstwhile predominantly social function was displaced by a manifestly political one. From this we must conclude that both transnationalism and social media sites can be put to very different ends: while young people in relatively privileged democratic countries might embrace transnationalism as an expression of their desire to “rise above” national politics, the youth of the Arab world have engaged it as a means of generating solidarity for nationalist insurgency and liberation. Another instance of “g/local” digital solidarity exceeding national borders is to be found in Johanna Sumiala’s article on the circulatory power of the Internet in the Kauhajoki school shooting which took place Finland in 2008. As well as using the Internet to “stage manage” his rampage, the Kauhajoki shooter (whose name the author chose to withhold for ethical reasons) was subsequently found to have been a member of numerous Web-based “hate groups”, many of them originating in the United States and, as a consequence, may be understood to have committed his crime on behalf of a transnational community: what Sumiala has defined as a “networked community of destruction.” It must also be noted, however, that the school shootings were experienced as a very local tragedy in Finland itself and, although the shooter may have been psychically located in a transnational hyper-reality when he undertook the killings, it is his nation-state that has had to deal with the trauma and shame in the long term. Woodward and Brown & Rutherford, meanwhile, show that it remains the tendency of public broadcast media to uphold the raison d’être of the nation-state at the same time as embracing change. Woodward’s feature article (which reports on the AHRC-sponsored “Tuning In” project which has researched the BBC World Service) shows how the representation of national and diasporic “voices” from around the world, either in opposition to or in dialogue with the BBC’s own reporting, is key to the way in which the Commission has changed and modernised in recent times; however, she is also clear that many of the objectives that defined the service in its early days—such as its commitment to a distinctly “English” brand of education—still remain. Similarly, Brown & Rutherford’s article on the innovative Australian ABC children’s television series, My Place (which has combined traditional broadcasting with online, interactive websites) may be seen to be positively promoting the Australian nation by making visible its commitment to multiculturalism. Both articles nevertheless reveal the extent to which these public service broadcasters have recognised the need to respond to their nations’ changing demographics and, in particular, the fact that “diaspora” is a concept that refers not only to their English and Australian audiences abroad but also to their now manifestly multicultural audiences at home. When it comes to commercial satellite television, however, the relationship between broadcasting and national and global politics is rather harder to pin down. Subramanian exposes a complex interplay of national and global interests through her analysis of the Malayalee “reality television” series, Idea Star Singer. Exported globally to the Indian diaspora, the show is shamelessly exploitative in the way in which it combines residual and emergent ideologies (i.e. nostalgia for a traditional Keralayan way of life vs aspirational “western lifestyles”) in pursuit of its (massive) audience ratings. Further, while the ISS series is ostensibly a g/local phenomenon (the export of Kerala to the rest of the world rather than “India” per se), Subramanian passionately laments all the progressive national initiatives (most notably, the campaign for “women’s rights”) that the show is happy to ignore: an illustration of one of the negative consequences of globalisation predicted by Beck (31) noted at the start of this editorial. Harb, meanwhile, reflects upon a rather different set of political concerns with regards to commercial satellite broadcasting in her account of the role of Al-Jazeera and Al Arabiya in the recent (2011) Arab revolutions. Despite Al-Jazeera’s reputation for “two-sided” news coverage, recent events have exposed its complicity with the Qatari government; further, the uprisings have revealed the speed with which social media—in particular Facebook and Twitter—are replacing broadcast media. It is now possible for “the people” to bypass both governments and news corporations (public and private) in relaying the news. Taken together, then, what our articles would seem to indicate is that, while the power of the nation-state has notionally been transcended via a range of new networking practices, this has yet to undermine its material power in any guaranteed way (witness recent counter-insurgencies in Libya, Bahrain, and Syria).True, the Internet may be used to facilitate transnational “actions” against the nation-state (individual or collective) through a variety of non-violent or violent actions, but nation-states around the world, and especially in Western Europe, are currently wielding immense power over their subjects through aggressive “austerity measures” which have the capacity to severely compromise the freedom and agency of the citizens concerned through widespread unemployment and cuts in social welfare provision. This said, several of our articles provide evidence that Appadurai’s more utopian prognoses are also taking shape. Alongside the troubling possibility that globalisation, and the technologies that support it, is effectively eroding “difference” (be this national or individual), there are the ever-increasing (and widely reported) instances of how digital technology is actively supporting local communities and actions around the world in ways that bypass the state. These range from the relatively modest collective action, “My Estonia”, featured in Pikner’s article, to the ways in which the Libyan diaspora in Manchester have made use of social media to publicise and support public protests in Tripoli (Harb). In other words, there is compelling material evidence that the heterogeneity that Appadurai predicted and hoped for has come to pass through the people’s active participation in (and partial ownership of) media practices. Citizens are now able to “interfere” in the representation of their lives as never before and, through the digital revolution, communicate with one another in ways that circumvent state-controlled broadcasting. We are therefore pleased to present the articles that follow as a lively, interdisciplinary and international “state-of-the-art” commentary on how the ongoing revolution in media and communication is responding to, and bringing into being, the processes and practices of globalisation predicted by Appadurai, Beck, Bauman, and others in the 1990s. The articles also speak to the changing nature of the world’s “diasporas” during this fifteen year time frame (1996-2011) and, we trust, will activate further debate (following Cohen) on the conceptual tensions that now manifestly exist between “virtual” and “material” diasporas and also between the “transnational” diasporas whose objective is to transcend the nation-state altogether and those that deploy social media for specifically local or national/ist ends. Acknowledgements With thanks to the Arts and Humanities Research Council (UK) for their generous funding of the “Moving Manchester” project (2006-10). Special thanks to Dr Kate Horsley (Lancaster University) for her invaluable assistance as ‘Web Editor’ in the production of this special issue (we could not have managed without you!) and also to Gail Ferguson (our copy-editor) for her expertise in the preparation of the final typescript. References Appadurai, Arjun. Modernity at Large: Cultural Dimensions of Globalisation. Minneapolis: U of Minnesota P, 1996. Bauman, Zygmunt. Globalization. Cambridge: Polity, 1998. Beck, Ulrich. What is Globalization? Trans. Patrick Camiller. Cambridge: Polity, 2000 (1997). Bromley, Roger. Narratives for a New Belonging: Diasporic Cultural Fictions. Edinburgh: Edinburgh UP, 2000. Cohen, Robin. Global Diasporas. 2nd ed. London and New York: Routledge, 2008. Deleuze, Gilles, and Felix Guattari. A Thousand Plateaus: Capitalism and Schizophrenia. Trans. Brian Massumi. Minneapolis: U of Minnesota P, 1987. Latour, Bruno. Reassembling the Social: An Introduction to Actor-Network Theory. Oxford: Oxford UP, 1995. Pearce, Lynne, ed. Devolving Identities: Feminist Readings in Home and Belonging. London: Ashgate, 2000. Pearce, Lynne. “‘Writing’ and ‘Region’ in the Twenty-First Century: Epistemological Reflections on Regionally Located Art and Literature in the Wake of the Digital Revolution.” European Journal of Cultural Studies 13.1 (2010): 27-41. Robertson, Robert. Globalization: Social Theory and Global Culture. London: Sage, 1992. Urry, John. Sociology beyond Societies. London: Routledge, 1999. Williams, Raymond. Dream Worlds: Mass Consumption in Late Nineteenth-Century France. Berkeley: U of California P, 1982.

Connecting I’ve moved house on the weekend, closer to the centre of an Australian capital city. I had recently signed up for broadband, with a major Australian Internet company (my first contact, cf. Turner). Now I am the proud owner of a larger modem than I have ever owned: a white cable modem. I gaze out into our new street: two thick black cables cosseted in silver wire. I am relieved. My new home is located in one of those streets, double-cabled by Telstra and Optus in the data-rush of the mid-1990s. Otherwise, I’d be moth-balling the cable modem, and the thrill of my data percolating down coaxial cable. And it would be off to the computer supermarket to buy an ASDL modem, then to pick a provider, to squeeze some twenty-first century connectivity out of old copper (the phone network our grandparents and great-grandparents built). If I still lived in the country, or the outskirts of the city, or anywhere else more than four kilometres from the phone exchange, and somewhere that cable pay TV will never reach, it would be a dish for me — satellite. Our digital lives are premised upon infrastructure, the networks through which we shape what we do, fashion the meanings of our customs and practices, and exchange signs with others. Infrastructure is not simply the material or the technical (Lamberton), but it is the dense, fibrous knotting together of social visions, cultural resources, individual desires, and connections. No more can one easily discern between ‘society’ and ‘technology’, ‘carriage’ and ‘content’, ‘base’ and ‘superstructure’, or ‘infrastructure’ and ‘applications’ (or ‘services’ or ‘content’). To understand telecommunications in action, or the vectors of fibre, we need to consider the long and heterogeneous list of links among different human and non-human actors — the long networks, to take Bruno Latour’s evocative concept, that confect our broadband networks (Latour). The co-ordinates of our infrastructure still build on a century-long history of telecommunications networks, on the nineteenth-century centrality of telegraphy preceding this, and on the histories of the public and private so inscribed. Yet we are in the midst of a long, slow dismantling of the posts-telegraph-telephone (PTT) model of the monopoly carrier for each nation that dominated the twentieth century, with its deep colonial foundations. Instead our New World Information and Communication Order is not the decolonising UNESCO vision of the late 1970s and early 1980s (MacBride, Maitland). Rather it is the neoliberal, free trade, market access model, its symbol the 1984 US judicial decision to require the break-up of AT&T and the UK legislation in the same year that underpinned the Thatcherite twin move to privatize British Telecom and introduce telecommunications competition. Between 1984 and 1999, 110 telecommunications companies were privatized, and the ‘acquisition of privatized PTOs [public telecommunications operators] by European and American operators does follow colonial lines’ (Winseck 396; see also Mody, Bauer & Straubhaar). The competitive market has now been uneasily installed as the paradigm for convergent communications networks, not least with the World Trade Organisation’s 1994 General Agreement on Trade in Services and Annex on Telecommunications. As the citizen is recast as consumer and customer (Goggin, ‘Citizens and Beyond’), we rethink our cultural and political axioms as well as the axes that orient our understandings in this area. Information might travel close to the speed of light, and we might fantasise about optical fibre to the home (or pillow), but our terrain, our band where the struggle lies today, is narrower than we wish. Begging for broadband, it seems, is a long way from warchalking for WiFi. Policy Circuits The dreary everyday business of getting connected plugs the individual netizen into a tangled mess of policy circuits, as much as tricky network negotiations. Broadband in mid-2003 in Australia is a curious chimera, welded together from a patchwork of technologies, old and newer communications industries, emerging economies and patterns of use. Broadband conjures up grander visions, however, of communication and cultural cornucopia. Broadband is high-speed, high-bandwidth, ‘always-on’, networked communications. People can send and receive video, engage in multimedia exchanges of all sorts, make the most of online education, realise the vision of home-based work and trading, have access to telemedicine, and entertainment. Broadband really entered the lexicon with the mass takeup of the Internet in the early to mid-1990s, and with the debates about something called the ‘information superhighway’. The rise of the Internet, the deregulation of telecommunications, and the involuted convergence of communications and media technologies saw broadband positioned at the centre of policy debates nearly a decade ago. In 1993-1994, Australia had its Broadband Services Expert Group (BSEG), established by the then Labor government. The BSEG was charged with inquiring into ‘issues relating to the delivery of broadband services to homes, schools and businesses’. Stung by criticisms of elite composition (a narrow membership, with only one woman among its twelve members, and no consumer or citizen group representation), the BSEG was prompted into wider public discussion and consultation (Goggin & Newell). The then Bureau of Transport and Communications Economics (BTCE), since transmogrified into the Communications Research Unit of the Department of Communications, Information Technology and the Arts (DCITA), conducted its large-scale Communications Futures Project (BTCE and Luck). The BSEG Final report posed the question starkly: As a society we have choices to make. If we ignore the opportunities we run the risk of being left behind as other countries introduce new services and make themselves more competitive: we will become consumers of other countries’ content, culture and technologies rather than our own. Or we could adopt new technologies at any cost…This report puts forward a different approach, one based on developing a new, user-oriented strategy for communications. The emphasis will be on communication among people... (BSEG v) The BSEG proposed a ‘National Strategy for New Communications Networks’ based on three aspects: education and community access, industry development, and the role of government (BSEG x). Ironically, while the nation, or at least its policy elites, pondered the weighty question of broadband, Australia’s two largest telcos were doing it. The commercial decision of Telstra/Foxtel and Optus Vision, and their various television partners, was to nail their colours (black) to the mast, or rather telegraph pole, and to lay cable in the major capital cities. In fact, they duplicated the infrastructure in cities such as Sydney and Melbourne, then deciding it would not be profitable to cable up even regional centres, let alone small country towns or settlements. As Terry Flew and Christina Spurgeon observe: This wasteful duplication contrasted with many other parts of the country that would never have access to this infrastructure, or to the social and economic benefits that it was perceived to deliver. (Flew & Spurgeon 72) The implications of this decision for Australia’s telecommunications and television were profound, but there was little, if any, public input into this. Then Minister Michael Lee was very proud of his anti-siphoning list of programs, such as national sporting events, that would remain on free-to-air television rather than screen on pay, but was unwilling, or unable, to develop policy on broadband and pay TV cable infrastructure (on the ironies of Australia’s television history, see Given’s masterly account). During this period also, it may be remembered, Australia’s Internet was being passed into private hands, with the tendering out of AARNET (see Spurgeon for discussion). No such national strategy on broadband really emerged in the intervening years, nor has the market provided integrated, accessible broadband services. In 1997, landmark telecommunications legislation was enacted that provided a comprehensive framework for competition in telecommunications, as well as consolidating and extending consumer protection, universal service, customer service standards, and other reforms (CLC). Carrier and reseller competition had commenced in 1991, and the 1997 legislation gave it further impetus. Effective competition is now well established in long distance telephone markets, and in mobiles. Rivalrous competition exists in the market for local-call services, though viable alternatives to Telstra’s dominance are still few (Fels). Broadband too is an area where there is symbolic rivalry rather than effective competition. This is most visible in advertised ADSL offerings in large cities, yet most of the infrastructure for these services is comprised by Telstra’s copper, fixed-line network. Facilities-based duopoly competition exists principally where Telstra/Foxtel and Optus cable networks have been laid, though there are quite a number of ventures underway by regional telcos, power companies, and, most substantial perhaps, the ACT government’s TransACT broadband network. Policymakers and industry have been greatly concerned about what they see as slow takeup of broadband, compared to other countries, and by barriers to broadband competition and access to ‘bottleneck’ facilities (such as Telstra or Optus’s networks) by potential competitors. The government has alternated between trying to talk up broadband benefits and rates of take up and recognising the real difficulties Australia faces as a large country with a relative small and dispersed population. In March 2003, Minister Alston directed the ACCC to implement new monitoring and reporting arrangements on competition in the broadband industry. A key site for discussion of these matters has been the competition policy institution, the Australian Competition and Consumer Commission, and its various inquiries, reports, and considerations (consult ACCC’s telecommunications homepage at http://www.accc.gov.au/telco/fs-telecom.htm). Another key site has been the Productivity Commission (http://www.pc.gov.au), while a third is the National Office on the Information Economy (NOIE - http://www.noie.gov.au/projects/access/access/broadband1.htm). Others have questioned whether even the most perfectly competitive market in broadband will actually provide access to citizens and consumers. A great deal of work on this issue has been undertaken by DCITA, NOIE, the regulators, and industry bodies, not to mention consumer and public interest groups. Since 1997, there have been a number of governmental inquiries undertaken or in progress concerning the takeup of broadband and networked new media (for example, a House of Representatives Wireless Broadband Inquiry), as well as important inquiries into the still most strategically important of Australia’s companies in this area, Telstra. Much of this effort on an ersatz broadband policy has been piecemeal and fragmented. There are fundamental difficulties with the large size of the Australian continent and its harsh terrain, the small size of the Australian market, the number of providers, and the dominant position effectively still held by Telstra, as well as Singtel Optus (Optus’s previous overseas investors included Cable & Wireless and Bell South), and the larger telecommunications and Internet companies (such as Ozemail). Many consumers living in metropolitan Australia still face real difficulties in realising the slogan ‘bandwidth for all’, but the situation in parts of rural Australia is far worse. Satellite ‘broadband’ solutions are available, through Telstra Countrywide or other providers, but these offer limited two-way interactivity. Data can be received at reasonable speeds (though at far lower data rates than how ‘broadband’ used to be defined), but can only be sent at far slower rates (Goggin, Rural Communities Online). The cultural implications of these digital constraints may well be considerable. Computer gamers, for instance, are frustrated by slow return paths. In this light, the final report of the January 2003 Broadband Advisory Group (BAG) is very timely. The BAG report opens with a broadband rhapsody: Broadband communications technologies can deliver substantial economic and social benefits to Australia…As well as producing productivity gains in traditional and new industries, advanced connectivity can enrich community life, particularly in rural and regional areas. It provides the basis for integration of remote communities into national economic, cultural and social life. (BAG 1, 7) Its prescriptions include: Australia will be a world leader in the availability and effective use of broadband...and to capture the economic and social benefits of broadband connectivity...Broadband should be available to all Australians at fair and reasonable prices…Market arrangements should be pro-competitive and encourage investment...The Government should adopt a National Broadband Strategy (BAG 1) And, like its predecessor nine years earlier, the BAG report does make reference to a national broadband strategy aiming to maximise “choice in work and recreation activities available to all Australians independent of location, background, age or interests” (17). However, the idea of a national broadband strategy is not something the BAG really comes to grips with. The final report is keen on encouraging broadband adoption, but not explicit on how barriers to broadband can be addressed. Perhaps this is not surprising given that the membership of the BAG, dominated by representatives of large corporations and senior bureaucrats was even less representative than its BSEG predecessor. Some months after the BAG report, the Federal government did declare a broadband strategy. It did so, intriguingly enough, under the rubric of its response to the Regional Telecommunications Inquiry report (Estens), the second inquiry responsible for reassuring citizens nervous about the full-privatisation of Telstra (the first inquiry being Besley). The government’s grand $142.8 million National Broadband Strategy focusses on the ‘broadband needs of regional Australians, in partnership with all levels of government’ (Alston, ‘National Broadband Strategy’). Among other things, the government claims that the Strategy will result in “improved outcomes in terms of services and prices for regional broadband access; [and] the development of national broadband infrastructure assets.” (Alston, ‘National Broadband Strategy’) At the same time, the government announced an overall response to the Estens Inquiry, with specific safeguards for Telstra’s role in regional communications — a preliminary to the full Telstra sale (Alston, ‘Future Proofing’). Less publicised was the government’s further initiative in indigenous telecommunications, complementing its Telecommunications Action Plan for Remote Indigenous Communities (DCITA). Indigenous people, it can be argued, were never really contemplated as citizens with the ken of the universal service policy taken to underpin the twentieth-century government monopoly PTT project. In Australia during the deregulatory and re-regulatory 1990s, there was a great reluctance on the part of Labor and Coalition Federal governments, Telstra and other industry participants, even to research issues of access to and use of telecommunications by indigenous communicators. Telstra, and to a lesser extent Optus (who had purchased AUSSAT as part of their licence arrangements), shrouded the issue of indigenous communications in mystery that policymakers were very reluctant to uncover, let alone systematically address. Then regulator, the Australian Telecommunications Authority (AUSTEL), had raised grave concerns about indigenous telecommunications access in its 1991 Rural Communications inquiry. However, there was no government consideration of, nor research upon, these issues until Alston commissioned a study in 2001 — the basis for the TAPRIC strategy (DCITA). The elision of indigenous telecommunications from mainstream industry and government policy is all the more puzzling, if one considers the extraordinarily varied and significant experiments by indigenous Australians in telecommunications and Internet (not least in the early work of the Tanami community, made famous in media and cultural studies by the writings of anthropologist Eric Michaels). While the government’s mid-2003 moves on a ‘National Broadband Strategy’ attend to some details of the broadband predicament, they fall well short of an integrated framework that grasps the shortcomings of the neoliberal communications model. The funding offered is a token amount. The view from the seat of government is a glance from the rear-view mirror: taking a snapshot of rural communications in the years 2000-2002 and projecting this tableau into a safety-net ‘future proofing’ for the inevitable turning away of a fully-privately-owned Telstra from its previously universal, ‘carrier of last resort’ responsibilities. In this aetiolated, residualist policy gaze, citizens remain constructed as consumers in a very narrow sense in this incremental, quietist version of state securing of market arrangements. What is missing is any more expansive notion of citizens, their varied needs, expectations, uses, and cultural imaginings of ‘always on’ broadband networks. Hybrid Networks “Most people on earth will eventually have access to networks that are all switched, interactive, and broadband”, wrote Frances Cairncross in 1998. ‘Eventually’ is a very appropriate word to describe the parlous state of broadband technology implementation. Broadband is in a slow state of evolution and invention. The story of broadband so far underscores the predicament for Australian access to bandwidth, when we lack any comprehensive, integrated, effective, and fair policy in communications and information technology. We have only begun to experiment with broadband technologies and understand their evolving uses, cultural forms, and the sense in which they rework us as subjects. Our communications networks are not superhighways, to invoke an enduring artefact from an older technology. Nor any longer are they a single ‘public’ switched telecommunications network, like those presided over by the post-telegraph-telephone monopolies of old. Like roads themselves, or the nascent postal system of the sixteenth century, broadband is a patchwork quilt. The ‘fibre’ of our communications networks is hybrid. To be sure, powerful corporations dominate, like the Tassis or Taxis who served as postmasters to the Habsburg emperors (Briggs & Burke 25). Activating broadband today provides a perspective on the path dependency of technology history, and how we can open up new threads of a communications fabric. Our options for transforming our multitudinous networked lives emerge as much from everyday tactics and strategies as they do from grander schemes and unifying policies. We may care to reflect on the waning potential for nation-building technology, in the wake of globalisation. We no longer gather our imagined community around a Community Telephone Plan as it was called in 1960 (Barr, Moyal, and PMG). Yet we do require national and international strategies to get and stay connected (Barr), ideas and funding that concretely address the wider dimensions of access and use. We do need to debate the respective roles of Telstra, the state, community initiatives, and industry competition in fair telecommunications futures. Networks have global reach and require global and national integration. Here vision, co-ordination, and resources are urgently required for our commonweal and moral fibre. To feel the width of the band we desire, we need to plug into and activate the policy circuits. Thanks to Grayson Cooke, Patrick Lichty, Ned Rossiter, John Pace, and an anonymous reviewer for helpful comments. Works Cited Alston, Richard. ‘ “Future Proofing” Regional Communications.’ Department of Communications, Information Technology and the Arts, Canberra, 2003. 17 July 2003 <http://www.dcita.gov.au/Article/0,,0_1-2_3-4_115485,00.php> —. ‘A National Broadband Strategy.’ Department of Communications, Information Technology and the Arts, Canberra, 2003. 17 July 2003 <http://www.dcita.gov.au/Article/0,,0_1-2_3-4_115486,00.php>. Australian Competition and Consumer Commission (ACCC). Broadband Services Report March 2003. Canberra: ACCC, 2003. 17 July 2003 <http://www.accc.gov.au/telco/fs-telecom.htm>. —. Emerging Market Structures in the Communications Sector. 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MLA Style Goggin, Gerard. "Broadband" M/C: A Journal of Media and Culture< http://www.media-culture.org.au/0308/02-featurebroadband.php>. APA Style Goggin, G. (2003, Aug 26). Broadband. M/C: A Journal of Media and Culture, 6,< http://www.media-culture.org.au/0308/02-featurebroadband.php>