Arctic marine climate of the early nineteenth century

The climate of the early nineteenth century is likely to have been significantly cooler than that of today, as it was a period of low solar activity (the Dalton minimum) and followed a series of large volcanic eruptions. Proxy reconstructions of the temperature of the period do not agree well on the size of the temperature change, so other observational records from the period are particularly valuable. Weather observations have been extracted from the reports of the noted whaling captain William Scoresby Jr., and from the records of a series of Royal Navy expeditions to the Arctic, preserved in the UK National Archives. They demonstrate that marine climate in 1810 - 1825 was marked by consistently cold summers, with abundant sea-ice. But although the period was significantly colder than the modern average, there was considerable variability: in the Greenland Sea the summers following the Tambora eruption (1816 and 1817) were noticeably warmer, and had less sea-ice coverage, than the years immediately preceding them; and the sea-ice coverage in Lancaster Sound in 1819 and 1820 was low even by modern standards. © 2010 Author(s)

Seeking the Goal in the Process, the Process for the Goal: Organizational Learning in a Public Sector Change Project

This paper describes how a combination of process modelling and goal modelling techniques has been used to facilitate organizational learning. The case study comes from the public sector in the UK. The modelling techniques have helped users to rationalise about the existing processes and then to design how they would like the process to work. The paper describes how the users have been able to confront the complex issues involved. The experience suggests that the combination of the modelling techniques is important to the learning experience of the users involved

NGO Legitimacy: Four Models

The aim of this paper is to examine NGOs’ legitimacy in the context of global politics. In order to yield a better understanding of NGOs’ legitimacy at the international level it is important to examine how their legitimacy claims are evaluated. This paper proposes dividing the literature into four models based on the theoretical and analytical approaches to their legitimacy claims: the market model, social change model, new institutionalism model and the critical model. The legitimacy criteria generated by the models are significantly different in their analytical scope of how one is to assess the role of NGOs operating as political actors contributing to democracy. The paper argues that the models present incomplete, and sometimes conflicting, views of NGOs’ legitimacy and that this poses a legitimacy dilemma for those assessing the political agency of NGOs in world politics. The paper concludes that only by approaching their legitimacy holistically can the democratic role of NGOs be explored and analysed in the context of world politics

What explains the uneven take-up of ISO 14001 at the global level?: a panel-data analysis

Since its release in the mid-1990s, close to 37 000 facilities have been certified to ISO 14001, the international voluntary standard for environmental management systems. Yet, despite claims that the standard can be readily adapted to very different corporate and geographic settings, its take-up has been highly geographically variable. This paper contributes to a growing body of work concerned with explaining the uneven diffusion of ISO 14001 at the global level. Drawing from the existing theoretical and empirical literature we develop a series of hypotheses about how various economic, market, and regulatory factors influence the national count of ISO 14001 certifications. These hypotheses are then tested using econometric estimation techniques with data for a panel of 142 developed and developing countries. We find that per capita ISO 14001 counts are positively correlated with income per capita, stock of foreign direct investment, exports of goods and services to Europe and Japan, and pressure from civil society. Conversely, productivity and levels of state intervention are negatively correlated. The paper finishes by offering a number of recommendations to policymakers concerned with accelerating the diffusion of voluntary environmental standards

Corridors of barchan dunes: stability and size selection

Barchans are crescentic dunes propagating on a solid ground. They form dune fields in the shape of elongated corridors in which the size and spacing between dunes are rather well selected. We show that even very realistic models for solitary dunes do not reproduce these corridors. Instead, two instabilities take place. First, barchans receive a sand flux at their back proportional to their width while the sand escapes only from their horns. Large dunes proportionally capture more than they loose sand, while the situation is reversed for small ones: therefore, solitary dunes cannot remain in a steady state. Second, the propagation speed of dunes decreases with the size of the dune: this leads -- through the collision process -- to a coarsening of barchan fields. We show that these phenomena are not specific to the model, but result from general and robust mechanisms. The length scales needed for these instabilities to develop are derived and discussed. They turn out to be much smaller than the dune field length. As a conclusion, there should exist further - yet unknown - mechanisms regulating and selecting the size of dunes.Comment: 13 pages, 13 figures. New version resubmitted to Phys. Rev. E. Pictures of better quality available on reques

Building common cause towards sustainable consumption: A cross-generational perspective

The notion of sustainable consumption has gained significant traction in recent decades, in parallel with unprecedented growth in global consumption and recognition of its catastrophic environmental impacts. In this context, there is a predominant generational narrative of frugality versus excess, with younger generations often negatively stereotyped as increasingly consumer-driven and environmentally destructive. We argue that it is important to develop a more nuanced understanding of generational difference, drawing on findings from a cross-generational study in Sheffield, UK, involving participants from the ages of 16–96. The aim of this research was to explore how citizens relate to the idea of sustainable consumption across generations, acknowledging but also seeking to look beyond the common tropes of thrift and the throwaway society. We draw on theories of intergenerational value change and consider how insights from the Common Cause framework, which encourages pro-environmental campaigners to make broad appeals to engage a range of intrinsic values, may be applied to sustainable consumption. In doing so, we reflect on the merits of adopting an expansive definition of sustainable consumption that encompasses the three pillars of sustainability – economic stability, environmental protection and human wellbeing – and identify insights from our research for campaigners and policy makers interested in working with intrinsic values to build common cause across generations

Endotoxin, cytokines and lipid peroxides in children with intussusception

Background: Intussusception is a relatively common paediatric surgical emergency. The aim of this study was to investigate selected in¯ammatory mediators in children with acute intussusception and to identify potentially useful plasma markers of clinical outcome. Methods: Clinical, radiographic, operative and pathological details were recorded prospectively of all children presenting to a single institution with a con®rmed diagnosis of acute intussusception during 1 year. Paired acute and convalescent venous blood samples were collected in a standard manner for blinded analysis of the following: malondialdehyde, C-reactive protein (CRP), interleukin (IL) 6, neopterin, tumour necrosis factor a, endotoxin, and immunoglobulin (Ig) G and IgM antiendotoxin core antibody (EndoCAb). Results: Thirty-two consecutive children (23 boys, nine girls) with a median age of 4 months were studied. Acute ileocolic intussusception was managed by air enema reduction (n = 19), operative reduction (n = 8) or surgical resection (n = 5). Peripheral blood cultures were sterile. Acute levels of plasma IL-6, neopterin and CRP were signi®cantly raised in comparison to both normal laboratory ranges and convalescent samples (P < 0´001). Using stepwise discriminant analysis, CRP was identi®ed as the best variable at distinguishing between the three treatment groups (P < 0´001). IgM EndoCAb concentrations were signi®cantly greater in the convalescent sera of all the patients (P < 0´001). Conclusion: Acute ileocolic intussusception in childhood is associated with endotoxinaemia and signi®cantly raised levels of circulating in¯ammatory cytokines. Plasma CRP at diagnosis showed a statistically signi®cant positive correlation with disease severity

Baby Boomers and the Lost Generation: On the discursive construction of generations at work

Generations, and generational categories, offer a means of organising our understandings of age and age-related issues. Particularly within practitioner-orientated debates, differences between generations are highlighted as creating tensions which organisations must address. In contrast, we offer a critical interrogation of generations and unpack the implications of particular constructions. Specifically we examine the discursive construction of generational issues in UK online news about age at work, focusing on baby boomers and the lost generation. We highlight the discursive work involved in constructing each generation as entitled to work and how responsibility for employment issues is variously positioned. These inter-related concerns develop into a debate about consequences, as different versions of the future are constructed. In contrast to essentialised understandings, our study shows how generations and generational categories are constructed and organise understandings of age at work. We further highlight how the constructions of generational differences and tensions become enrolled and legitimate age-related differences with regard to work. Such insights are essential to further our understandings of age-related issues in contemporary organising