Representative versus responsible government

The changing circumstances in which parties compete in contemporary democracies, coupled with the changing circumstances in which governments now govern, have led to a widening of the traditional gap between representative and responsible government. Although it is generally seen as desirable that parties in government are both representative and responsible, these two characteristics are now becoming increasingly incompatible. Prudence and consistency in government, as well as accountability, require conformity to external constraints and legacies. This means more than just answering to public opinion. While these external constraints and legacies have become weightier in recent years, public opinion, in its turn, has become harder and harder for governments to read. Hence we see the growing incompatibility. Meanwhile, because of changes in their organizations and in their relationship with civil society, parties are no longer in a position to bridge or 'manage' this gap, or even to persuade voters to accept it as a necessary element in political life. This growing incompatibility is one of the principal sources of the democratic malaise that confronts many Western democracies today. -- Die sich wandelnden Rahmenbedingungen für Regierungen und für den Parteienwettbewerb in modernen Demokratien haben zu einer Verbreiterung der traditionellen Kluft zwischen repräsentativem und responsivem Regieren geführt. Obgleich von regierenden Parteien erwartet wird, dass sie sowohl repräsentativ als auch responsiv handeln, lassen sich diese beiden Vorgehensweisen immer schwerer miteinander vereinbaren. Eine umsichtig und nachhaltig handelnde Regierung, die ihrer Rechenschaftspflicht gegenüber dem Bürger nachkommt, darf sich nicht nur an der öffentlichen Meinung orientieren, sondern muss externe Sachzwänge ebenso berücksichtigen wie die Vermächtnisse vorhergehender Regierungen - zwei Faktoren, die in den letzten Jahren an Bedeutung gewonnen haben. Hinzu kommt, dass die öffentliche Meinung für Regierungen immer schwieriger zu deuten ist. Aufgrund von strukturellen Veränderungen sowie Veränderungen in ihrem Verhältnis zu den Bürgern sind die Parteien inzwischen nicht mehr in der Lage, die entstandene Kluft zu überbrücken beziehungsweise zu handhaben oder gar ihre Wähler davon zu überzeugen, sie als unverzichtbaren Bestandteil des politischen Lebens zu akzeptieren. Die zunehmende Unvereinbarkeit repräsentativen und responsiven Regierens ist eine der Haupt�ursachen für die 'Politikverdrossenheit', mit der sich viele westliche Demokratien heute konfrontiert sehen.

Fluid flow analysis by a modified, white light, Lau interferometer

This paper presents a sharp focussing schlieren system based upon a modified Lau interferometer. A method of reducing the depth of focus of the system is demonstrated and the development of the system to study large fields of view by theincorporation of flexible membrane mirrors is discussed

Investigations of meltwater refreezing and density variations in the snowpack and firn within the percolation zone of the Greenland Ice Sheet

The mass balance of polythermal ice masses is critically dependent on the proportion of surface-generated meltwater that subsequently refreezes in the snowpack and firn. In order to quantify this effect and to characterize its spatial variability, we measured near-surface (26%, resulting in a 32% increase in net accumulation. This 'seasonal densification' increased at lower elevations, rising to 47% 10 km closer to the ice-sheet margin at 1860 m a. s. l. Density/depth profiles from nine sites within 1 km2 at ∼1945 m a.s.l. reveal complex stratigraphies that change over short spatial scales and seasonally. We conclude that estimates of mass-balance change cannot be calculated solely from observed changes in surface elevation, but that near-surface densification must also be considered. However, predicting spatial and temporal variations in densification may not be straightforward. Further, the development of complex firn-density profiles both masks discernible annual layers in the near-surface firn and ice stratigraphy and is likely to introduce error into radar-derived estimates of surface elevation

Acute: high-level programming language design for distributed computation

Existing languages provide good support for typeful programming of standalone programs. In a distributed system, however, there may be interaction between multiple instances of many distinct programs, sharing some (but not necessarily all) of their module structure, and with some instances rebuilt with new versions of certain modules as time goes on. In this paper we discuss programming language support for such systems, focussing on their typing and naming issues. We describe an experimental language, Acute, which extends an ML core to support distributed development, deployment, and execution, allowing type-safe interaction between separately-built programs. The main features are: (1) type-safe marshalling of arbitrary values; (2) type names that are generated (freshly and by hashing) to ensure that type equality tests suffice to protect the invariants of abstract types, across the entire distributed system; (3) expression-level names generated to ensure that name equality tests suffice for type-safety of associated values, e.g. values carried on named channels; (4) controlled dynamic rebinding of marshalled values to local resources; and (5) thunkification of threads and mutexes to support computation mobility. These features are a large part of what is needed for typeful distributed programming. They are a relatively lightweight extension of ML, should be efficiently implementable, and are expressive enough to enable a wide variety of distributed infrastructure layers to be written as simple library code above the byte-string network and persistent store APIs. This disentangles the language runtime from communication intricacies. This paper highlights the main design choices in Acute. It is supported by a full language definition (of typing, compilation, and operational semantics), by a prototype implementation, and by example distribution libraries

A systematic review of interventions by healthcare professionals to improve management of non-communicable diseases and communicable diseases requiring long-term care in adults who are homeless

Objective: Identify, describe and appraise trials of interventions delivered by healthcare professionals to manage non-communicable diseases (NCDs) and communicable diseases that require long-term care or treatment (LT-CDs), excluding mental health and substance use disorders, in homeless adults. Design: Systematic review of randomised controlled trials (RCTs), non-RCTs and controlled before–after studies. Interventions characterised using Effective Practice and Organisation of Care (EPOC) taxonomy. Quality assessed using EPOC risk of bias criteria. Data sources: Database searches (MEDLINE, Embase, PsycINFO, Scopus, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Applied Social Sciences Index and Abstracts (ASSIA) and Cochrane Central Register of Controlled Trials), hand searching reference lists, citation searches, grey literature and contact with study authors. Setting: Community. Participants: Adults (≥18 years) fulfilling European Typology of Homelessness criteria. Intervention: Delivered by healthcare professionals managing NCD and LT-CDs. Outcomes: Primary outcome: unscheduled healthcare utilisation. Secondary outcomes: mortality, biological markers of disease control, adherence to treatment, engagement in care, patient satisfaction, knowledge, self-efficacy, quality of life and cost-effectiveness. Results: 11 studies were included (8 RCTs, 2 quasi-experimental and 1 feasibility) involving 9–520 participants (67%–94% male, median age 37–49 years). Ten from USA and one from UK. Studies included various NCDs (n=3); or focused on latent tuberculosis (n=4); HIV (n=2); hepatitis C (n=1) or type 2 diabetes (n=1). All interventions were complex with multiple components. Four described theories underpinning intervention. Three assessed unscheduled healthcare utilisation: none showed consistent reduction in hospitalisation or emergency department attendance. Six assessed adherence to specific treatments, of which four showed improved adherence to latent tuberculosis therapy. Three concerned education case management, all of which improved disease-specific knowledge. No improvements in biological markers of disease (two studies) and none assessed mortality. Conclusions: Evidence for management of NCD and LT-CDs in homeless adults is sparse. Educational case-management interventions may improve knowledge and medication adherence. Large trials of theory-based interventions are needed, assessing healthcare utilisation and outcomes as well as assessment of biological outcomes and cost-effectiveness

Interventions by healthcare professionals to improve management of physical long-term conditions in adults who are homeless: a systematic review protocol

Introduction People experiencing homelessness are at increased risk of, and have poorer outcomes from, a range of physical long-term conditions (LTCs). It is increasingly recognised that interventions targeting people who are homeless should be tailored to the specific needs of this population. This systematic review aims to identify, describe and appraise trials of interventions that aim to manage physical LTCs in homeless adults and are delivered by healthcare professionals. Methods and analysis Seven electronic databases (Medline, EMBASE, Cochrane Central Register of Controlled Trials, Assia, Scopus, PsycINFO and CINAHL) will be searched from 1960 (or inception) to October 2016 and supplemented by forward citation searching, handsearching of reference lists and searching grey literature. Two reviewers will independently review titles, abstract and full-texts using DistillerSR software. Inclusion criteria include (1) homeless adults with any physical LTC, (2) interventions delivered by a healthcare professional (any professional trained to provide any form of healthcare, but excluding social workers and professionals without health-related training), (3) comparison with usual care or an alternative intervention, (4) report outcomes such as healthcare usage, physical and psychological health or well-being or cost-effectiveness, (5) randomised controlled trials, non-randomised controlled trials, controlled before-after studies. Quality will be assessed using the Cochrane EPOC Risk of Bias Tool. A meta-analysis will be performed if sufficient data are identified; however, we anticipate a narrative synthesis will be performed. Ethics and dissemination This review will synthesise existing evidence for interventions delivered by healthcare professionals to manage physical LTCs in adults who are homeless. The findings will inform the development of future interventions and research aiming to improve the management of LTCs for people experiencing homelessness. Ethical approval will not be required for this systematic review as it does not contain individual patient data. We will disseminate the results of this systematic review via conference presentations, healthcare professional networks, social media and peer-reviewed publication

Field-calibrated model of melt, refreezing, and runoff for polar ice caps : Application to Devon Ice Cap

Acknowledgments R.M.M. was supported by the Scottish Alliance for Geoscience, Environment and Society (SAGES). The field data collection contributed to the validation of the European Space Agency Cryosat mission and was supported by the Natural Sciences and Engineering Research Council, Canada, the Meteorological Service of Canada (CRYSYS program), the Polar Continental Shelf Project (an agency of Natural Resources Canada), and by UK Natural Environment Research Council consortium grant NER/O/S/2003/00620. Support for D.O.B. was provided by the Canadian Circumpolar Institute and the Climate Change Geoscience Program, Earth Sciences Sector, Natural Resources Canada (ESS contribution 20130371). Thanks are also due to the Nunavut Research Institute and the communities of Resolute Bay and Grise Fjord for permission to conduct fieldwork on Devon Ice Cap. M.J. Sharp, A. Gardner, F. Cawkwell, R. Bingham, S. Williamson, L. Colgan, J. Davis, B. Danielson, J. Sekerka, L. Gray, and J. Zheng are thanked for logistical support and field assistance during the data collection. We thank Ruzica Dadic, two other anonymous reviewers, and the Editor, Bryn Hubbard, for their helpful comments on an earlier version of this paper and which resulted in significant improvements.Peer reviewedPublisher PD

Multimorbidity and co-morbidity in atrial fibrillation and effects on survival: findings from UK Biobank cohort

Aims: To examine the number and type of co-morbid long-term health conditions (LTCs) and their associations with all-cause mortality in an atrial fibrillation (AF) population. Methods and results: Community cohort participants (UK Biobank n = 502 637) aged 37–73 years were recruited between 2006 and 2010. Self-reported LTCs (n = 42) identified in people with AF at baseline. All-cause mortality was available for a median follow-up of 7 years (interquartile range 76–93 months). Hazard ratios (HRs) examined associations between number and type of co-morbid LTC and all-cause mortality, adjusting for age, sex, socio-economic status, smoking, and anticoagulation status. Three thousand six hundred fifty-one participants (0.7% of the study population) reported AF; mean age was 61.9 years. The all-cause mortality rate was 6.7% (248 participants) at 7 years. Atrial fibrillation participants with ≥4 co-morbidities had a six-fold higher risk of mortality compared to participants without any LTC. Co-morbid heart failure was associated with higher risk of mortality [HR 2.96, 95% confidence interval (CI) 1.83–4.80], whereas the presence of co-morbid stroke did not have a significant association. Among non-cardiometabolic conditions, presence of chronic obstructive pulmonary disease (HR 3.31, 95% CI 2.14–5.11) and osteoporosis (HR 3.13, 95% CI 1.63–6.01) was associated with a higher risk of mortality. Conclusion: Survival in middle-aged to older individuals with self-reported AF is strongly correlated with level of multimorbidity. This group should be targeted for interventions to optimize their management, which in turn may potentially reduce the impact of their co-morbidities on survival. Future AF clinical guidelines need to place greater emphasis on the issue of co-morbidity

Personalised electronic messages to improve sun protection in young adults

The incidence of all skin cancers, including melanoma, continues to rise. It is well known that ultraviolet (UV) radiation is the main environmental risk factor for skin cancer, and excessive exposure at a young age increases the risk of developing skin cancer. The aim of this study was to determine the acceptability and feasibility of delivering sun protection messages via electronic media such as short message services (SMS) to people 18-40 years, and explore factors associated with their acceptability. Overall, 80% of participants agreed that they would like to receive some form of sun protection advice; of these, 20% prefer to receive it via SMS and 42% via email. Willingness to receive electronic messages about the UV index was associated with being unsure about whether a suntanned person would look healthy and greater use of sun protection in the past. Careful attention to message framing and timing of message delivery and focus on short-term effects of sun exposure such as sunburn and skin ageing should increase the acceptability of such messages to young people. We conclude that sun protection messages delivered to young adults via electronic media appear feasible and acceptable

Os parâmetros dos sistemas partidários

Resumo Apesar do ceticismo que envolve, cada vez mais, seu papel e importância [standing] nas democracias contemporâneas, o interesse acadêmico pelos partidos políticos continua inabalado. Mas este interesse também está se mostrando desigual, com relativamente pouca atenção dedicada atualmente ao estudo dos sistemas partidários. Mais especificamente, o nível de interesse teórico pelos sistemas partidários permanece limitado, quase sem inovações substanciais desde a publicação da obra clássica de Sartori, em 1976. Neste artigo, procuramos reparar em parte essa negligência, identificando os parâmetros relevantes que podem ser utilizados na definição de um sistema partidário e, possivelmente, na explicação da mudança nesse sistema. Por conseguinte, examinamos as características mínimas definidoras de um sistema de partidos (por oposição a um conjunto de partidos), para depois, finalmente, argumentar que sistemas partidários são mais bem entendidos como fenômenos multidimensionais, nos quais identificamos e discutimos as implicações de três tipos de divisão ”“ vertical, horizontal e funcional. Palavras-chave: arena eleitoral; arena governamental; arena parlamentar; sistemas partidários.   Abstract Despite the scepticism that increasingly surrounds their role and standing in contemporary democracies, scholarly interest in political parties continues unabated. But this interest is also proving uneven, with relatively little attention now being given to the study of party systems. More specifically, the level of theoretical interest in party systems remains limited, with almost no substantial innovations being made since the publication of Sartori’s classic work of 1976. In this article, we seek to redress some of this neglect by identifying the relevant parameters that can be used in the definition of party systems and, possibly, in the explanation of party system change. We then go on to look at the minimum defining characteristics of a system of parties (as opposed to a set of parties) before finally arguing that party systems are best understood as multidimensional phenomena in which we identify and discuss the implications of three types of division ”“ vertical, horizontal and functional. Key words: electoral arena; governmental arena; parliamentary arena; part