36 research outputs found

    Always in control? Sovereign states in cyberspace

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    For well over twenty years, we have witnessed an intriguing debate about the nature of cyberspace. Used for everything from communication to commerce, it has transformed the way individuals and societies live. But how has it impacted the sovereignty of states? An initial wave of scholars argued that it had dramatically diminished centralised control by states, helped by a tidal wave of globalisation and freedom. These libertarian claims were considerable. More recently, a new wave of writing has argued that states have begun to recover control in cyberspace, focusing on either the police work of authoritarian regimes or the revelations of Edward Snowden. Both claims were wide of the mark. By contrast, this article argues that we have often misunderstood the materiality of cyberspace and its consequences for control. It not only challenges the libertarian narrative of freedom, it suggests that the anarchic imaginary of the Internet as a ‘Wild West’ was deliberately promoted by states in order to distract from the reality. The Internet, like previous forms of electronic connectivity, consists mostly of a physical infrastructure located in specific geographies and jurisdictions. Rather than circumscribing sovereignty, it has offered centralised authority new ways of conducting statecraft. Indeed, the Internet, high-speed computing, and voice recognition were all the result of security research by a single information hegemon and therefore it has always been in control

    Exploring the needs and lived experiences of women hospitalised during pregnancy in the United Kingdom:A qualitative diary study

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    There is a global call to optimise antenatal care experiences. Hospitalisation during pregnancy may have a significant impact upon the experience of care. Thus, the aim of this study was to explore the needs and lived experiences of those hospitalised during pregnancy.A thematic analysis rooted in interpretive phenomenology was undertaken on the content of five written diaries produced by pregnant participants whilst hospitalised. Three themes were identified from the data; (1) ‘Uncertainty’; (2) ‘Loss of control’; (3)‘Vulnerability’. Study findings could usefully be translated into improvements for those hospitalised during the antenatal period. </div

    The secret empire of signals intelligence : GCHQ and the persistence of the colonial presence

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    Why did Britain remove the population of an idyllic Indian Ocean archipelago? Why has Britain resisted granting citizenship to the inhabitants of another small island in the mid-Atlantic? Why does Britain still ‘own’ 90 square miles of Cyprus? The answer, we suggest, lies in part with the heritage of Bletchley Park, an obsession with informational dominance in world politics that demands the control of key nodes in international telecommunications around the globe. We also argue that intelligence studies have focused unduly on the human agent or the secret policeman and as a result, the issue of electronic imperialism has been a neglected aspect of intelligence collection across the Global South. Here we focus on Britain’s Government Communications Headquarters (GCHQ) and suggest that computers, colonies and ocean cables enjoy strange and unexpected connections that can alter the fate of small nations. We conclude that perhaps geographers, rather than historians or political scientists, deploy the most advanced conceptual tools for examining this phenomenon

    Phase II randomized preoperative window-of-opportunity study of the PI3K inhibitor pictilisib plus anastrozole compared with anastrozole alone in patients with estrogen receptor-positive breast cancer

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    Purpose: Preclinical data support a key role for the PI3K pathway in estrogen receptor-positive breast cancer and suggest that combining PI3K inhibitors with endocrine therapy may overcome resistance. This preoperative window study assessed whether adding the PI3K inhibitor pictilisib (GDC-0941) can increase the antitumor effects of anastrozole in primary breast cancer and aimed to identify the most appropriate patient population for combination therapy. Patients and Methods: In this randomized, open-label phase II trial, postmenopausal women with newly diagnosed operable estrogen receptor-positive, human epidermal growth factor receptor 2 (HER2)-negative breast cancers were recruited. Participants were randomly allocated (2:1, favoring the combination) to 2 weeks of preoperative treatment with anastrozole 1 mg once per day (n = 26) or the combination of anastrozole 1 mg with pictilisib 260 mg once per day (n = 49). The primary end point was inhibition of tumor cell proliferation as measured by change in Ki-67 protein expression between tumor samples taken before and at the end of treatment. Results: There was significantly greater geometric mean Ki-67 suppression of 83.8% (one-sided 95% CI, ≥ 79.0%) for the combination and 66.0% (95% CI, ≤ 75.4%) for anastrozole (geometric mean ratio [combination: anastrozole], 0.48; 95% CI, ≤ 0.72; P = .004). PIK3CA mutations were not predictive of response to pictilisib, but there was significant interaction between response to treatment and molecular subtype (P =.03);for patients with luminal B tumors, the combination:anastrozole geometric mean ratio of Ki-67 suppression was 0.37 (95% CI, ≤ 0.67; P = .008), whereas no significant Ki-67 response was observed for pictilisib in luminal A tumors (1.01; P = .98). Multivariable analysis confirmed Ki-67 response to the combination treatment of patients with luminal B tumors irrespective of progesterone receptor status or baseline Ki-67 expression. Conclusion: Adding pictilisib to anastrozole significantly increases suppression of tumor cell proliferation in luminal B primary breast cancer

    Impacts of Parasites in Early Life: Contrasting Effects on Juvenile Growth for Different Family Members

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    Parasitism experienced early in ontogeny can have a major impact on host growth, development and future fitness, but whether siblings are affected equally by parasitism is poorly understood. In birds, hatching asynchrony induced by hormonal or behavioural mechanisms largely under parental control might predispose young to respond to infection in different ways. Here we show that parasites can have different consequences for offspring depending on their position in the family hierarchy. We experimentally treated European Shag (Phalacrocorax aristoteli) nestlings with the broad-spectrum anti-parasite drug ivermectin and compared their growth rates with nestlings from control broods. Average growth rates measured over the period of linear growth (10 days to 30 days of age) and survival did not differ for nestlings from treated and control broods. However, when considering individuals within broods, parasite treatment reversed the patterns of growth for individual family members: last-hatched nestlings grew significantly slower than their siblings in control nests but grew faster in treated nests. This was at the expense of their earlier-hatched brood-mates, who showed an overall growth rate reduction relative to last-hatched nestlings in treated nests. These results highlight the importance of exploring individual variation in the costs of infection and suggest that parasites could be a key factor modulating within-family dynamics, sibling competition and developmental trajectories from an early age

    Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK.

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    BACKGROUND: A safe and efficacious vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), if deployed with high coverage, could contribute to the control of the COVID-19 pandemic. We evaluated the safety and efficacy of the ChAdOx1 nCoV-19 vaccine in a pooled interim analysis of four trials. METHODS: This analysis includes data from four ongoing blinded, randomised, controlled trials done across the UK, Brazil, and South Africa. Participants aged 18 years and older were randomly assigned (1:1) to ChAdOx1 nCoV-19 vaccine or control (meningococcal group A, C, W, and Y conjugate vaccine or saline). Participants in the ChAdOx1 nCoV-19 group received two doses containing 5 × 1010 viral particles (standard dose; SD/SD cohort); a subset in the UK trial received a half dose as their first dose (low dose) and a standard dose as their second dose (LD/SD cohort). The primary efficacy analysis included symptomatic COVID-19 in seronegative participants with a nucleic acid amplification test-positive swab more than 14 days after a second dose of vaccine. Participants were analysed according to treatment received, with data cutoff on Nov 4, 2020. Vaccine efficacy was calculated as 1 - relative risk derived from a robust Poisson regression model adjusted for age. Studies are registered at ISRCTN89951424 and ClinicalTrials.gov, NCT04324606, NCT04400838, and NCT04444674. FINDINGS: Between April 23 and Nov 4, 2020, 23 848 participants were enrolled and 11 636 participants (7548 in the UK, 4088 in Brazil) were included in the interim primary efficacy analysis. In participants who received two standard doses, vaccine efficacy was 62·1% (95% CI 41·0-75·7; 27 [0·6%] of 4440 in the ChAdOx1 nCoV-19 group vs71 [1·6%] of 4455 in the control group) and in participants who received a low dose followed by a standard dose, efficacy was 90·0% (67·4-97·0; three [0·2%] of 1367 vs 30 [2·2%] of 1374; pinteraction=0·010). Overall vaccine efficacy across both groups was 70·4% (95·8% CI 54·8-80·6; 30 [0·5%] of 5807 vs 101 [1·7%] of 5829). From 21 days after the first dose, there were ten cases hospitalised for COVID-19, all in the control arm; two were classified as severe COVID-19, including one death. There were 74 341 person-months of safety follow-up (median 3·4 months, IQR 1·3-4·8): 175 severe adverse events occurred in 168 participants, 84 events in the ChAdOx1 nCoV-19 group and 91 in the control group. Three events were classified as possibly related to a vaccine: one in the ChAdOx1 nCoV-19 group, one in the control group, and one in a participant who remains masked to group allocation. INTERPRETATION: ChAdOx1 nCoV-19 has an acceptable safety profile and has been found to be efficacious against symptomatic COVID-19 in this interim analysis of ongoing clinical trials. FUNDING: UK Research and Innovation, National Institutes for Health Research (NIHR), Coalition for Epidemic Preparedness Innovations, Bill & Melinda Gates Foundation, Lemann Foundation, Rede D'Or, Brava and Telles Foundation, NIHR Oxford Biomedical Research Centre, Thames Valley and South Midland's NIHR Clinical Research Network, and AstraZeneca

    Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK

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    Background A safe and efficacious vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), if deployed with high coverage, could contribute to the control of the COVID-19 pandemic. We evaluated the safety and efficacy of the ChAdOx1 nCoV-19 vaccine in a pooled interim analysis of four trials. Methods This analysis includes data from four ongoing blinded, randomised, controlled trials done across the UK, Brazil, and South Africa. Participants aged 18 years and older were randomly assigned (1:1) to ChAdOx1 nCoV-19 vaccine or control (meningococcal group A, C, W, and Y conjugate vaccine or saline). Participants in the ChAdOx1 nCoV-19 group received two doses containing 5 × 1010 viral particles (standard dose; SD/SD cohort); a subset in the UK trial received a half dose as their first dose (low dose) and a standard dose as their second dose (LD/SD cohort). The primary efficacy analysis included symptomatic COVID-19 in seronegative participants with a nucleic acid amplification test-positive swab more than 14 days after a second dose of vaccine. Participants were analysed according to treatment received, with data cutoff on Nov 4, 2020. Vaccine efficacy was calculated as 1 - relative risk derived from a robust Poisson regression model adjusted for age. Studies are registered at ISRCTN89951424 and ClinicalTrials.gov, NCT04324606, NCT04400838, and NCT04444674. Findings Between April 23 and Nov 4, 2020, 23 848 participants were enrolled and 11 636 participants (7548 in the UK, 4088 in Brazil) were included in the interim primary efficacy analysis. In participants who received two standard doses, vaccine efficacy was 62·1% (95% CI 41·0–75·7; 27 [0·6%] of 4440 in the ChAdOx1 nCoV-19 group vs71 [1·6%] of 4455 in the control group) and in participants who received a low dose followed by a standard dose, efficacy was 90·0% (67·4–97·0; three [0·2%] of 1367 vs 30 [2·2%] of 1374; pinteraction=0·010). Overall vaccine efficacy across both groups was 70·4% (95·8% CI 54·8–80·6; 30 [0·5%] of 5807 vs 101 [1·7%] of 5829). From 21 days after the first dose, there were ten cases hospitalised for COVID-19, all in the control arm; two were classified as severe COVID-19, including one death. There were 74 341 person-months of safety follow-up (median 3·4 months, IQR 1·3–4·8): 175 severe adverse events occurred in 168 participants, 84 events in the ChAdOx1 nCoV-19 group and 91 in the control group. Three events were classified as possibly related to a vaccine: one in the ChAdOx1 nCoV-19 group, one in the control group, and one in a participant who remains masked to group allocation. Interpretation ChAdOx1 nCoV-19 has an acceptable safety profile and has been found to be efficacious against symptomatic COVID-19 in this interim analysis of ongoing clinical trials

    Division D Operation Rubicon and the CIA’s Secret SIGINT empire

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    The CIA is a popular topic of study for intelligence historians. Renowned for covert action and human intelligence operations, we know a lot about how they became woven into the tapestry of world history. More recently, scientific and technical intelligence emerged as a central theme, uncovering the work of the ‘Wizards of Langley’. This article suggests we still have much to learn. Exploring CIA’s historic interest in communications intelligence, it uncovers ways they controlled a significant proportion of the world’s communications systems. Working internationally, and disagreeing with NSA, the CIA influenced important systems well into the twenty-first century

    Ceiling at Galleria Umberto

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    Ceiling at Galleria Umberto, taken by Sarah Mainwaring on the Linfield University January Term Program in Campania, Italy. 2nd place, Architecture division, in the 2022 Linfield University Study Abroad Photo Contest.https://digitalcommons.linfield.edu/intl_photos2022/1001/thumbnail.jp

    ‘From dark art to the everyday’ : American encryption policy 1950-2020

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    In 2021, we are more reliant on technology than ever before. Through smartphones, contactless bank transactions and internet-connected lightbulbs, electronic networks surround us. While we understand a great deal about this technology, we have yet to consider one aspect: encryption. Consigned to mathematical textbooks, the importance of encryption is not widely understood. This thesis begins that conversation. Tracing how encryption technologies have been used and designed in the United States of America over the last seventy years, it encourages us to recognise the socio-political and historical dimensions of this mathematical subject. Doing so, it argues encryption policies since 1952 have been a constant battle for control. While the dominant viewpoint concluded that the American Government, through the NSA, sought to maintain their control over encryption and limit individual freedom and privacy, this thesis offers an alternative perspective. While privacy and security debates occupied public discourse, a hidden contest for control was raging – between the private sector and the international market, and the American Government. Over time, Government authority and influence over encryption was reduced not by privacy campaigners, but by market forces and industry officials. Recognising this complexity highlights the role of the private sector. In the 1950s, the National Security Agency was the sole authority for encryption policies. Designing military and government devices, radios and typewriters were secure enough while also being easy to use and lightweight enough for military campaigns. As the market for encryption technologies grew, the telecommunications sector became important players in national policymaking. Doing so, they challenged government authority and provided an alternative source of protection. We explore this theme throughout this thesis, asking who the legitimate or responsible authority over encryption should be. Drawing on hundreds of thousands of documents and hours of discussion with government practitioners, technical experts and industry officials, this is among the first examples of a socio-historical study of the technical subject of encryption. Offering fresh interpretation of historic examples alongside previously unavailable case studies, it suggests that encryption policy is a constant space of compromise and balance between economic and security interests. In 2020, this debate remains alive, with global social media companies sometimes refusing to help law enforcement investigate paedophilia and child sexual abuse online. This thesis offers a path beyond stalemates, arguing that a middle way can be found between public safety, individual privacy and economic efficiency
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