bluuebunny/crossref_metadata_2025 huggingface dataset:
Morphology evolution and crystalline structure of controlled‐rheology polypropylene in micro‐injection molding
Authors: Li Mengjue , Qi Yang , Zhao Zhongguo , Xiang Zhang , Liao Xia , Niu Yanhua , Kong Miqiu
Published: December 2015

In this paper, the microstructural evolution of controlled‐rheology polypropylene (CRPP) with different melt viscoelasticities was investigated by polarized optical microscopy, scanning electronic microscopy, differential scanning calorimeter, and wide‐angle X‐ray diffraction. It is found that a typical “skin‐core” structure formed in CRPP microparts and the thickness of oriented layer of CRPP microparts decreases notably with the addition of peroxide. The thickness of oriented layer and the distribution of different layers strongly depend on the melt flow properties and the corresponding relaxation time (λ). Furthermore, the mechanisms of the suppressed formation of oriented layers during the micro‐injection molding process are discussed mainly from the viewpoint of rheology and thermodynamics. It is revealed that the shear‐induced orientation is one of the key factors for the formation of oriented molecular structure (row nuclei). The final thickness of the oriented layer is the result of the competition between the orientation behavior and the disorientation behavior. Copyright © 2015 John Wiley & Sons, Ltd.
Confounding by drug formulary restriction in pharmacoepidemiologic research
Authors: Filion Kristian B. , Eberg Maria , Ernst Pierre
Published: December 2015

Purpose

The potential consequences of confounding due to drug formulary restrictions in pharmacoepidemiologic research remain incompletely understood. Our objective was to illustrate this potential bias using the example of fluticasone/salmeterol combination therapy, an oral inhaler used to treat asthma and chronic obstructive pulmonary disease, whose use is restricted in the province of Quebec, Canada.

Methods

We identified all new users of fluticasone/salmeterol in Quebec's administrative databases and classified those who received their initial dispensing of fluticasone/salmeterol between 1 September 1999 and 30 September 2003 as users from the liberal period and those who received it between 1 January 2004 and 31 October 2006 as users from the restricted period. The primary outcome was time to first hospitalization for respiratory causes within 12 months of cohort entry.

Results

Our cohort included 72 154 new users from the liberal period and 5058 from the restricted period. Compared with use during the liberal period, use during the restricted period was associated with an increased rate of hospitalization for respiratory causes (crude hazard ratio [HR] = 1.41, 95% confidence interval [CI] = 1.32, 1.51). Subsequent adjustment for age, sex, and hospitalization for respiratory causes in the previous year attenuated the association (HR = 1.05, 95%CI = 0.98, 1.12). Further adjustment for other potential confounders resulted in a lower rate during the restricted period (HR = 0.78, 95%CI = 0.73, 0.83).

Conclusions

Formulary restrictions can result in substantial and unexpected confounding and should be considered during the design and analysis of pharmacoepidemiologic studies. Copyright © 2015 John Wiley & Sons, Ltd.
Repeated participation in pancreatic cancer surveillance by high‐risk individuals imposes low psychological burden
Authors: Konings Ingrid C. A. W. , Sidharta Grace N. , Harinck Femme , Aalfs Cora M. , Poley Jan‐Werner , Kieffer Jacobien M. , Kuenen Marianne A. , Smets Ellen M. A. , Wagner Anja , van Hooft Jeanin E. , van Rens Anja , Fockens Paul , Bruno Marco J. , Bleiker Eveline M. A.
Published: December 2015

Background

When assessing the feasibility of surveillance for pancreatic cancer (PC), it is important to address its psychological burden. The aim of this ongoing study is to evaluate the psychological burden of annual pancreatic surveillance for individuals at high risk to develop PC.

Methods

This is a multicenter prospective study. High‐risk individuals who undergo annual pancreatic surveillance with magnetic resonance imaging (MRI) and endoscopic ultrasound (EUS) were invited to complete questionnaires to assess motivations for participating in surveillance, experiences with participation, perceived PC risk, topics of concern, and psychological distress. Questionnaires were sent after intake for participation (T1), after the first MRI and EUS (T2), and after the MRI and EUS 1 (T3), 2 (T4), and 3 years (T5) after first surveillance.

Results

In total, 140 out of 152 individuals returned one or more of the questionnaires (response 92%); 477 questionnaires were analyzed. The most frequently reported motivation for participating in surveillance was the possible early detection of (a precursor stage of) cancer (95–100%). Only a minority of respondents experienced MRI and EUS as uncomfortable (10% and 11%, respectively), and respondents dreaded their next EUS investigation less as surveillance progressed. Respondents' cancer worries decreased significantly over time, and both their anxiety and depression scores remained stable and low over the 3‐year period of follow‐up.

Conclusions

The psychological burden of pancreatic surveillance is low at all assessments. Therefore, from a psychological point of view, participation of high‐risk individuals in an annual pancreatic surveillance program is feasible.Copyright © 2015 John Wiley & Sons, Ltd.
Formation Chronology of Arsain Pingo, Darhad Basin, Northern Mongolia
Authors: Ishikawa Mamoru , Yamkhin Jambaljav
Published: December 2015

Numerous frost mounds exist on the meander belt and alluvial fan around Arsain Gol River in Darhad basin, northern Mongolia, at the southern fringe of the north‐eastern Eurasian permafrost zone. In this environment, abundant water supply and inter‐permafrost taliks may allow the development of artesian pressure that leads to groundwater upwelling. The aim of this study was to determine the formation chronology of pingos in this region. The Arsain pingo was drilled to a depth of 35 m to determine the stratigraphy, and data were collected on ground‐ice stable isotopic composition, electrical resistivity, ground temperature, and radiocarbon dating and interpreted in conjunction with the chronology of paleo‐lake retreat in the basin. A 10 m thick ice core sandwiched between fine‐grained lacustrine sediments was identified by drilling and electrical resistivity tomography (ERT). Stable isotope values of ice core samples indicated Rayleigh‐type isotope fractionation during the freezing of liquid water. Consequently, closed‐system freezing of artesian groundwater appears to be the driving mechanism of pingo formation. Near‐surface, segregated ground ice formed from the open‐system freezing of meteoric water, concurrent with pingo growth. The lake coverage was extensive until about 10,000 years before present (yr bp), and the growth of the Arsain pingo began after 4500 yr bp, when the paleo‐lake was completely drained. The pingo is not presently growing because of a limited groundwater supply to feed the ice core. Copyright © 2015 John Wiley & Sons, Ltd.
Continuous event monitoring via a Bayesian predictive approach
Authors: Di Jianing , Wang Daniel , Brashear H. Robert , Dragalin Vladimir , Krams Michael
Published: December 2015

In clinical trials, continuous monitoring of event incidence rate plays a critical role in making timely decisions affecting trial outcome. For example, continuous monitoring of adverse events protects the safety of trial participants, while continuous monitoring of efficacy events helps identify early signals of efficacy or futility. Because the endpoint of interest is often the event incidence associated with a given length of treatment duration (e.g., incidence proportion of an adverse event with 2 years of dosing), assessing the event proportion before reaching the intended treatment duration becomes challenging, especially when the event onset profile evolves over time with accumulated exposure. In particular, in the earlier part of the study, ignoring censored subjects may result in significant bias in estimating the cumulative event incidence rate. Such a problem is addressed using a predictive approach in the Bayesian framework. In the proposed approach, experts' prior knowledge about both the frequency and timing of the event occurrence is combined with observed data. More specifically, during any interim look, each event‐free subject will be counted with a probability that is derived using prior knowledge. The proposed approach is particularly useful in early stage studies for signal detection based on limited information. But it can also be used as a tool for safety monitoring (e.g., data monitoring committee) during later stage trials. Application of the approach is illustrated using a case study where the incidence rate of an adverse event is continuously monitored during an Alzheimer's disease clinical trial. The performance of the proposed approach is also assessed and compared with other Bayesian and frequentist methods via simulation. Copyright © 2015 John Wiley & Sons, Ltd.
Protective Effects of Gastrodin Against Autophagy‐Mediated Astrocyte Death
Authors: Wang Xin‐shang , Tian Zhen , Zhang Nan , Han Jing , Guo Hong‐liang , Zhao Ming‐gao , Liu Shui‐bing
Published: December 2015

Gastrodin is an active ingredient derived from the rhizome of Gastrodia elata. This compound is usually used to treat convulsive illness, dizziness, vertigo, and headache. This study aimed to investigate the effect of gastrodin on the autophagy of glial cells exposed to lipopolysaccharides (LPS, 1 µg/mL). Autophagy is a form of programmed cell death, although it also promotes cell survival. In cultured astrocytes, LPS exposure induced excessive autophagy and apoptosis, which were significantly prevented by the pretreatment cells with gastrodin (10 μM). The protective effects of gastrodin via autophagy inhibition were verified by the decreased levels of LC3‐II, P62, and Beclin‐1, which are classical markers for autophagy. Furthermore, gastrodin protected astrocytes from apoptosis through Bcl‐2 and Bax signaling pathway. The treatment of astrocytes with rapamycin (500 nM), wortmannin (100 nM), and LY294002 (10 μM), which are inhibitors of mTOR and PI3K, respectively, eliminated the known effects of gastrodin on the inhibited Beclin‐1 expression. Furthermore, gastrodin blocked the down‐regulation of glutamine synthetase induced by LPS exposure in astrocytes. Our results suggest that gastrodin can be used as a preventive agent for the excessive autophagy induced by LPS. Copyright © 2015 John Wiley & Sons, Ltd.
Task analysis of laparoscopic camera control schemes
Authors: Ellis R. Darin , Munaco Anthony J. , Reisner Luke A. , Klein Michael D. , Composto Anthony M. , Pandya Abhilash K. , King Brady W.
Published: December 2015

Background

Minimally invasive surgeries rely on laparoscopic camera views to guide the procedure. Traditionally, an expert surgical assistant operates the camera. In some cases, a robotic system is used to help position the camera, but the surgeon is required to direct all movements of the system. Some prior research has focused on developing automated robotic camera control systems, but that work has been limited to rudimentary control schemes due to a lack of understanding of how the camera should be moved for different surgical tasks.

Methods

This research used task analysis with a sample of eight expert surgeons to discover and document several salient methods of camera control and their related task contexts.

Results

Desired camera placements and behaviours were established for two common surgical subtasks (suturing and knot tying).

Conclusion

The results can be used to develop better robotic control algorithms that will be more responsive to surgeons' needs. Copyright © 2015 John Wiley & Sons, Ltd.
Simple separations of topographic and material contrasts using one annular type in‐lens detector of low‐voltage SEM
Authors: Nagoshi Masayasu , Kawano Takashi , Sato Kaoru
Published: December 2015

Contrasts of low‐voltage secondary electron microscope images have been experimentally investigated using commercial instruments having an annular type in‐lens (IL) detector. The topographic and material contrasts of oxide particles on steel surfaces in the secondary electron microscope images recorded by the IL and the Everhart‐Thonley detectors systematically change as a function of working distance. It is found that these two contrasts are divided using the different concentric areas of the IL detector surface. These results are discussed in terms of the kinetic energy of the detected electrons. Two simple methods for the information selection using one IL‐type detector are proposed. Copyright © 2015 John Wiley & Sons, Ltd.
Bayesian inference for generalized linear mixed models with predictors subject to detection limits: an approach that leverages information from auxiliary variables
Authors: Yue Yu Ryan , Wang Xiao‐Feng
Published: December 2015

This paper is motivated from a retrospective study of the impact of vitamin D deficiency on the clinical outcomes for critically ill patients in multi‐center critical care units. The primary predictors of interest, vitamin D2 and D3 levels, are censored at a known detection limit. Within the context of generalized linear mixed models, we investigate statistical methods to handle multiple censored predictors in the presence of auxiliary variables. A Bayesian joint modeling approach is proposed to fit the complex heterogeneous multi‐center data, in which the data information is fully used to estimate parameters of interest. Efficient Monte Carlo Markov chain algorithms are specifically developed depending on the nature of the response. Simulation studies demonstrate the outperformance of the proposed Bayesian approach over other existing methods. An application to the data set from the vitamin D deficiency study is presented. Possible extensions of the method regarding the absence of auxiliary variables, semiparametric models, as well as the type of censoring are also discussed. Copyright © 2015 John Wiley & Sons, Ltd.
DataMill: a distributed heterogeneous infrastructure forrobust experimentation
Authors: Petkovich J. C. , Oliveira A. , Zhang Y. , Reidemeister T. , Fischmeister S.
Published: December 2015

Empirical systems research is facing a dilemma. Minor aspects of an experimental setup can have a significant impact on its associated performance measurements and potentially invalidate conclusions drawn from them. Examples of such influences, often called hidden factors, include binary link order, process environment size, compiler generated randomized symbol names, or group scheduler assignments. The growth in complexity and size of modern systems will further aggravate this dilemma, especially with the given time pressure of producing results. How can one trust any reported empirical analysis of a new idea or concept in computer science? DataMill is a community‐based services‐oriented open benchmarking infrastructure for rigorous performance evaluation. DataMill facilitates producing robust, reliable, and reproducible results. The infrastructure incorporates the latest results on hidden factors and automates the variation of these factors. DataMill is also of interest for research on performance evaluation. The infrastructure supports quantifying the effect of hidden factors, disseminating the research results beyond mere reporting. It provides a platform for investigating interactions and composition of hidden factors. This paper discusses experience earned through creating and using an open benchmarking infrastructure. Multiple research groups participate and have used DataMill. Furthermore, DataMill has been used for a performance competition at the International Conference on Runtime Verification (RV) 2014 and is currently hosting the RV 2015 competition. This paper includes a summary of our experience hosting the first RV competition. Copyright © 2015 John Wiley & Sons, Ltd.
Recommendations
Authors: Brazelton G. Blue , Renn Kristen A. , Stewart Dafina‐Lazarus
Published: December 2015

In this chapter, the editors provide a summary of the information shared in this sourcebook about the success of students who have minoritized identities of sexuality or gender and offer recommendations for policy, practice, and further research.
Science, Technology and Society
Authors: Webster Andrew
Published: December 2015

STS is a field dedicated to studying the institutions and practices of scientists, engineers, physicians, architects, planners, and other technical professionals, as well as the complex relationships between science, technology and society
Reason, Revelation, and Devotion
Authors: Wainwright William J.
Published: December 2015

Reason, Revelation, and Devotion argues that immersion in religious reading traditions and their associated spiritual practices significantly shapes our emotions, desires, intuitions, and volitional commitments; these in turn affect our construction and assessments of arguments for religious conclusions. But far from distorting the reasoning process, these emotions and volitional and cognitive dispositions can be essential for sound reasoning on religious and other value-laden subject matters. And so western philosophy must rethink its traditional antagonism toward rhetoric. The book concludes with discussions of the implications of the earlier chapters for the relation between reason and revelation, and for the role that the concept of mystery should play in philosophy in general, and in the philosophy of religion and philosophical theology in particular.
Stochastic Analysis of Scaling Time Series
Authors: Schmitt François G. , Huang Yongxiang
Published: December 2015

Multi-scale systems, involving complex interacting processes that occur over a range of temporal and spatial scales, are present in a broad range of disciplines. Several methodologies exist to retrieve this multi-scale information from a given time series; however, each method has its own limitations. This book presents the mathematical theory behind the stochastic analysis of scaling time series, including a general historical introduction to the problem of intermittency in turbulence, as well as how to implement this analysis for a range of different applications. Covering a variety of statistical methods, such as Fourier analysis and wavelet transforms, it provides readers with a thorough understanding of the techniques and when to apply them. New techniques to analyse stochastic processes, including empirical mode decomposition, are also explored. Case studies, in turbulence and ocean sciences, are used to demonstrate how these statistical methods can be applied in practice, for students and researchers.
Paradise and Hell in Islamic Traditions
Authors: Lange Christian
Published: December 2015

The Muslim afterworld, with its imagery rich in sensual promises, has shaped Western perceptions of Islam for centuries. However, to date, no single study has done justice to the full spectrum of traditions of thinking about the topic in Islamic history. The Muslim hell, in particular, remains a little studied subject. This book, which is based on a wide array of carefully selected Arabic and Persian texts, covers not only the theological and exegetical but also the philosophical, mystical, topographical, architectural and ritual aspects of the Muslim belief in paradise and hell, in both the Sunni and the Shiʿi world. By examining a broad range of sources related to the afterlife, Christian Lange shows that Muslim religious literature, against transcendentalist assumptions to the contrary, often pictures the boundary between this world and the otherworld as being remarkably thin, or even permeable.
Introduction to Many-Body Physics
Authors: Coleman Piers
Published: December 2015

A modern, graduate-level introduction to many-body physics in condensed matter, this textbook explains the tools and concepts needed for a research-level understanding of the correlated behavior of quantum fluids. Starting with an operator-based introduction to the quantum field theory of many-body physics, this textbook presents the Feynman diagram approach, Green's functions and finite-temperature many-body physics before developing the path integral approach to interacting systems. Special chapters are devoted to the concepts of Fermi liquid theory, broken symmetry, conduction in disordered systems, superconductivity and the physics of local-moment metals. A strong emphasis on concepts and numerous exercises make this an invaluable course book for graduate students in condensed matter physics. It will also interest students in nuclear, atomic and particle physics.
The Acquisition of Heritage Languages
Authors: Montrul Silvina
Published: December 2015

Heritage speakers are native speakers of a minority language they learn at home, but due to socio-political pressure from the majority language spoken in their community, their heritage language does not fully develop. In the last decade, the acquisition of heritage languages has become a central focus of study within linguistics and applied linguistics. This work centres on the grammatical development of the heritage language and the language learning trajectory of heritage speakers, synthesizing recent experimental research. The Acquisition of Heritage Languages offers a global perspective, with a wealth of examples from heritage languages around the world. Written in an accessible style, this authoritative and up-to-date text is essential reading for professionals, students, and researchers of all levels working in the fields of sociolinguistics, psycholinguistics, education, language policies and language teaching.
The Life and Correspondence of Thomas Arnold
Authors: Stanley Arthur Penrhyn
Published: December 2015

Head of Rugby School for over a decade, Thomas Arnold (1795–1842) became Regius Professor of Modern History at Oxford in the final year of his life. Known for his controversial ideas on schooling and religion, he was a prominent and influential figure in the history of British education. First published in 1844, this two-volume work presents a diverse collection of Arnold's correspondence, compiled by his friend and former pupil Arthur Penrhyn Stanley (1815–81), Dean of Westminster. Interspersed with biographical commentary by Stanley, the letters in Volume 2 illustrate Arnold's theological position through his correspondence with various church figures. Other letters further reveal his views on education, politics and public affairs, and document his year at Oxford. Included at the end of the volume is a supplement from 1847 which provides additional material that was unavailable at the time of the first edition.
Export Restrictions on Critical Minerals and Metals
Authors: Espa Ilaria , Sacerdoti Giorgio
Published: December 2015

Conventional wisdom on the insufficiency of existing WTO disciplines on export restrictions has triggered momentum on the issue. In this book, Ilaria Espa offers a comprehensive analysis of the scope and coverage of WTO disciplines on export restrictions in light of emerging case law. She investigates whether such rules still provide a sufficient, credible and effective framework capable of preventing abuses in the use of export restrictive measures on critical minerals and metals during a period of economic crisis and change in international trade patterns. Giving a broad overview of the export restrictions applied to these materials, Espa identifies distinctive features in the proliferation of export barriers and analyses the existing WTO rules to reveal their scope, gaps and inconsistencies. She goes on to present solutions based upon her findings with the aim of bringing more coherence and equity to WTO rules on the export side.
Institutional Slavery
Authors: Oast Jennifer
Published: December 2015

The traditional image of slavery begins with a master and a slave. However, not all slaves had traditional masters; some were owned instead by institutions, such as church congregations, schools, colleges, and businesses. This practice was pervasive in early Virginia; its educational, religious, and philanthropic institutions were literally built on the backs of slaves. Virginia's first industrial economy was also developed with the skilled labor of African American slaves. This book focuses on institutional slavery in Virginia as it was practiced by the Anglican and Presbyterian churches, free schools, and four universities: the College of William and Mary, Hampden-Sydney College, the University of Virginia, and Hollins College. It also examines the use of slave labor by businesses and the Commonwealth of Virginia in industrial endeavors. This is not only an account of how institutions used slavery to further their missions, but also of the slaves who belonged to institutions.
Reporting the First World War
Authors: Morris A. J. A.
Published: December 2015

Charles Repington was Britain's most influential military correspondent during the first two decades of the twentieth century. From 1914 to 1918, Repington's commentary in The Times, 'The War Day by Day', was read and discussed by opinion-shapers and decision-makers worldwide who sought to better understand the momentous events happening around them, and his subsequently published diaries offered a compelling portrait of England's governing class at war. This is the first major study of Repington's life and career from the Boer War to the end of the Great War. A. J. A. Morris presents unique insights into the conduct of the First World War and into leading figures in the British high command: French, Haig, Robertson, Wilson. The book offers modern readers a rewardingly fresh understanding of the conflict, and will appeal to scholars of the First World War and British political and military history of the period.
Poetic Ethics in Proverbs
Authors: Stewart Anne W.
Published: December 2015

The Book of Proverbs' frequent use of binary oppositions - righteous and wicked, wise and foolish - has led many to assume that its vision of the moral world is relatively simplistic. This study demonstrates that Proverbs in fact presents a remarkably sophisticated response to ethical questions of profound concern to the Israelite sages who crafted the book: what motivates human beings? How do they learn? How does the power of desire shape human characters? Anne W. Stewart analyzes Proverbs' multifaceted collection of images and metaphors to reveal their complex understanding of the development of the moral self, which suggests that character formation requires educating all of the senses and not simply the cognitive faculties. One of few works to make explicit connections between the poetic form of Proverbs and its pedagogical function, Poetic Ethics in Proverbs will appeal to all those interested in literary approaches to the Bible.
The Advance of the State in Contemporary China
Authors: Eaton Sarah
Published: December 2015

Since the global financial crisis of 2008–9, central-level, state-owned enterprises (SOEs) in China have extended their reach into the Chinese economy. Some have interpreted this development as a turning point in Chinese economic development; a decision for state capitalism and a stand against slow but steady marketization. In The Advance of the State in Contemporary China, Sarah Eaton suggests that the shift is a much slower-moving process and that this particular aspect of state sector reform can be seen to predate the financial crisis. She argues that the 'advance of the State' has in fact developed incrementally from an eclectic set of ideas regarding the political and economic significance of large and profitable state-controlled enterprise groups. Drawing from case studies of China's telecommunication services and airline reforms, this fascinating new study offers illuminating insight into China's much-vaunted, but poorly understood, brand of state capitalism.
Reflections on Out-of-Home Care
Authors: Lehmann Jennifer
Published: December 2015

This paper is a reflective commentary that highlights some of the issues that impacted upon my thinking and perspectives as a social worker working in the child, youth and family sector. The paper takes the form of a narrative with some accounts of incidents that were memorable and challenged the ways I thought about myself and issues we face in the sector. My concerns are that, while there are many aspects of the work done in this sector in the past that we don't want to repeat, there are also features of service delivery that we overlook in the contemporary tendency to want quick solutions and pursue trends. The conclusions I have come to include the need for community-based, co-located services for parents and children who need supports and out-of-home care responses (OOHC).
Treasuring the Social in Social Pedagogy
Authors: Kemp Robyn
Published: December 2015

Robyn is a UK-qualified social worker who has a deeply held passion for, and some 30 years of experience working with disenfranchised and/or vulnerable people and children and young people in care. She has a strong interest in social pedagogy and residential childcare both operationally and strategically. Since 1995, she has been in a variety of management positions and has developed and delivered training, conferences, workshops and consultancy on children's social work and social care for the statutory, voluntary and independent sectors. Her work has aimed at improving both the experiences and outcomes for children and young people in or on the edge of care and raising the profile of those affected by, and working within, the social work and social care sectors.
Extra-Familial Care: Perspectives from India
Authors: Kapoor Shraddha , Patra Deepshikha
Published: December 2015

This paper aims to give an overview of out-of-home care in India. It looks at the history and culture of extra-familial care in the country, the urgent need for organised out-of-home care, and tries to understand the role of the state, including legislation and policies. The belief that individual families should solve their children's problems is deeply ingrained. There are different support systems that cater to the children's needs and right to healthy living in home and with family. While the government and community choose and decide for the children of the country, the government drags its feet in drafting policies which recognise that large number of children are growing up without families. More research is needed to look at the need and quality parameters for out-of-home care. Action from both government and non-government organisations (NGOs) will require a large number of institutions that, in turn, will require sufficient budgets and trained staff to ensure an environment of protection, support and appropriate development for an estimated 20 million children in need of good quality out-of-home care in India.
Children Looked After in England – Reflections on the Past, Present and Future
Authors: Gupta Anna
Published: December 2015

This paper explores the debates surrounding out-of-home care for children who are unable to live with their birth parents and become looked after by the state in England. The historical context for the provision of out-of-home care is considered. Themes, including the use of residential care, foster care, adoption and placements of children from Black and minority ethnic children, are identified. These themes are re-examined in light of the current political and policy context, including the impact of globalisation. The paper concludes some reflections on future trends.
Constructing Congressional Activity: Uncertainty and the Dynamics of Legislative Attention
Authors: Ryan Josh M.
Published: December 2015

Members and parties have electoral incentives to address issues on the congressional agenda to satisfy public demand. When determining which issues to address, majorities seek to minimize their uncertainty about the costs and electoral benefits of legislating by revisiting policy areas previously addressed. This theory is tested using error-correction models that demonstrate that policy activity within each chamber is in a long-term equilibrium and that the passage of legislation, even important bills, promotes future policymaking in the same policy area. This relationship is stronger when the majority has less information about the costs of lawmaking—specifically, when it faces a chamber controlled by the opposite party and when it is a new majority.
Effects of low-carbohydrate dietsv. low-fat diets on body weight and cardiovascular risk factors: a meta-analysis of randomised controlled trials
Authors: Mansoor Nadia , Vinknes Kathrine J. , Veierød Marit B. , Retterstøl Kjetil
Published: December 2015

The effects of low-carbohydrate (LC) diets on body weight and cardiovascular risk are unclear, and previous studies have found varying results. Our aim was to conduct a meta-analysis of randomised controlled trials (RCT), assessing the effects of LC dietsv. low-fat (LF) diets on weight loss and risk factors of CVD. Studies were identified by searching MEDLINE, Embase and Cochrane Trials. Studies had to fulfil the following criteria: a RCT; the LC diet was defined in accordance with the Atkins diet, or carbohydrate intake of <20 % of total energy intake; twenty subjects or more per group; the subjects were previously healthy; and the dietary intervention had a duration of 6 months or longer. Results from individual studies were pooled as weighted mean difference (WMD) using a random effect model. In all, eleven RCT with 1369 participants met all the set eligibility criteria. Compared with participants on LF diets, participants on LC diets experienced a greater reduction in body weight (WMD –2·17 kg; 95 % CI –3·36, –0·99) and TAG (WMD –0·26 mmol/l; 95 % CI –0·37, –0·15), but a greater increase in HDL-cholesterol (WMD 0·14 mmol/l; 95 % CI 0·09, 0·19) and LDL-cholesterol (WMD 0·16 mmol/l; 95 % CI 0·003, 0·33). This meta-analysis demonstrates opposite change in two important cardiovascular risk factors on LC diets – greater weight loss and increased LDL-cholesterol. Our findings suggest that the beneficial changes of LC diets must be weighed against the possible detrimental effects of increased LDL-cholesterol.
SCIENTISTS, THE PUBLIC, THE STATE, AND THE DEBATE OVER THE ENVIRONMENTAL AND HUMAN HEALTH EFFECTS OF NUCLEAR TESTING IN BRITAIN, 1950–1958
Authors: LAUCHT CHRISTOPH
Published: December 2015

This article uses the debate over environmental and human health effects of nuclear testing to shed light on the ambivalent relationship between scientists, the public, and the state in Britain during the crucial, but often overlooked, period leading up to the first cycle of anti-nuclear weapons mass protests. In this, it examines how members of Britain's main organization of nuclear scientists – the Atomic Scientists’ Association (ASA) – used their expertise in their engagement with both the public and the state to assess these effects of fallout from nuclear testing. What made the ASA stand out from other groups of the atomic scientists’ movement was its ambivalent relationship with the government. This was, by and large, the result of several ASA members’ occupational backgrounds in government employment and the association's self-imposed adherence to an ambiguous principle of scientific ‘objectivity’ in political matters. The ASA's role in the debate over fallout thus exemplifies a basic dilemma that many scientists in Britain and other Western liberal democracies faced between their roles as ‘objective’ and ‘unpolitical’ scientific experts, on the one hand, and socially responsible scientists, on the other, illustrating the ambivalent position of experts and uses of their knowledge.
RETHINKING FEMALE CHASTITY AND GENTLEWOMEN'S HONOUR IN EIGHTEENTH-CENTURY ENGLAND
Authors: YLIVUORI SOILE
Published: December 2015

Honour was a gendered phenomenon for the eighteenth-century English social elite; scholars have argued that for women, honour was mainly equated with chastity. By problematizing the concept of chastity as well as chastity's relation with women's social reputation, this article questions the widely adopted view of the crucial importance of female chastity for maintaining honour and social status. A critical examination of eighteenth-century discourses of feminine propriety shows that even though chastity was presented as an internal feminine feature, it was evaluated by external signs, making it less dependent on physical continence than on public display of purity. Chastity should thus be seen as a negotiable performative identity rather than a stable state of sexual virtue. Moreover, the relation between chastity and social reputation is more complex than hitherto supposed; even a public loss of chaste reputation did not necessarily lead to the social disgrace threatened by eighteenth-century writers, but could often be compensated through other performative means. The article concludes that not only was chastity's role in the construction of female honour ambiguous, female and male honour also resembled each other more than has been assumed, since they were both based on an external spectacle of proper honourable appearance.
THE PRIVY COUNCIL OF JAMES V OF SCOTLAND, 1528–1542
Authors: BLAKEWAY AMY
Published: December 2015

The development of the Scottish privy, or secret, council has hitherto been located in the 1540s and attributed to the pressures on government brought about by royal minority. Concomitantly, scholarship exploring the personal rule of James V (1528–42) has focused on the king's relations with individual magnates and neglected the subject of institutional development during his reign. Through an examination of commentary on the council outwith the council register, ranging from acts of parliament to correspondence and reports by foreign observers, this article posits a significantly earlier date for conciliar development in Scotland than has hitherto been appreciated. The council is visible throughout the personal rule of James V, assuming a particularly significant role in Anglo-Scots diplomacy from 1540 until 1542, when it was delegated by James to respond to letters during his frequent absences from Edinburgh. This aspect of council activity provides an example of institutional development facilitating rather than hindering the continuation of a peripatetic royal court, an unusual combination in not only a Scottish but a wider European context. Reassessing the significance of James V's council thus has broader implications for understandings of his kingship and the expansion of crown power in sixteenth-century Scotland, whilst throwing light on questions of Anglo-Scots diplomacy.
When Cars Become Churches: Jesmyn Ward's Disenchanted America. An Interview
Authors: HARTNELL ANNA
Published: December 2015

This interview with Jesmyn Ward, conducted in November 2013, takes as its starting point the publication of her memoir, Men We Reaped. It explores the role of her writing in the context of Hurricane Katrina, the US South, African American culture and identity, and new trends in twenty-first-century US writing.
The Bostrychietum community of pneumatophores in Araçá Bay: an analysis of the diversity of macrofauna
Authors: García Abel Furlan , Bueno Marília , Leite Fosca Pedini Pereira
Published: December 2015

A mangrove forest can harbour several macroalgal assemblages growing on pneumatophores, roots, stems and other hard substrates. These algae belong to various genera, most typicallyBostrychia, and form a community called the Bostrychietum. This study describes the fauna associated with the Bostrychietum and the effect of emersion time on the community. Seasonal samples were collected from pneumatophores on an island in Araçá Bay in 2012, in two areas, one on the border of the island and one inland. Each pneumatophore was considered a sample. The border samples, with a shorter emersion time, contained a richer algal flora associated with pneumatophores, and fauna with species of varied dietary habits. The inland samples, with a longer emersion time, contained only two algal genera and fauna species comprised mostly of omnivorous amphipods and desiccation-resistant detritivorous species. Macrofauna diversity and richness varied over time and were lower in spring. Therefore, the emersion time of the Bostrychietum and the period of the year affect the community structure, for both the macroalgae and the associated fauna.
TOWARD A SHIFTING HEALTH TECHNOLOGY ASSESSMENT PARADIGM: REACTIONS TO POLICY FORUM DISCUSSIONS
Authors: Sampietro-Colom Laura , Thomas Sarah , Henshall Chris
Published: December 2015

Are we in a period of significant change? Is health technology assessment (HTA) undergoing a fundamental transformation? Or should it be? Are we in the middle of a paradigm shift? These are some of the questions the paper by Facey et al in this journal (1) raises about the future of HTA, based on discussions at the HTAi Policy Forum in February 2015. To further share the deliberations of the Forum and with a view to opening this debate among the wider HTA community, a panel within the HTAi 2015 Annual Meeting in Oslo was organized. Presentations at the panel included a summary of the HTAi Policy Forum deliberations and perspectives from a patient, a clinician, and representatives of an HTA organization, industry, and a health system. This letter presents issues and thoughts raised in the panel session.
World Heritage Regionalism: UNESCO from Europe to Asia
Authors: Meskell Lynn , Liuzza Claudia , Brown Nicholas
Published: December 2015

UNESCO World Heritage regions are historically constructed categories that do not easily map onto global geographies, yet they still continue to have important political and ethical implications in the international arena. Since their inception, regional categories have been at the heart of debates over global representation and equity in the World Heritage Committee. We include the recent controversy over uneven regional representation in elections to the Committee and the measures adopted to remedy this for the future. Specifically, the “Europe and North America” regional group has historically been the most dominant region and, as we demonstrate, continues to be so despite measures such as the Global Strategy. In the last decade, however, the “Asia and the Pacific” regional group has exhibited a growing presence in many aspects of World Heritage. We go on to examine overall trends from annual sessions of the World Heritage Committee from its start in 1977 to 2014 in terms of site inscription on the World Heritage List, membership on the Committee and size of national delegations in order to look in greater detail at the rising profile of Asia. This leads to a discussion of the different forms and understandings of regionalism, whether for Europe or Asia, and how some Asian delegations see their increased role and visibility in World Heritage.
Reconstructing a Wartime Journey: The Vollard-Fabiani Collection, 1940–1949
Authors: Karrels Nancy Caron
Published: December 2015

In 1940, the British Admiralty detained a British passenger ship sailing from Lisbon to New York at the port of Hamilton, Bermuda, for a contraband search. Customs authorities seized four crates containing hundreds of artworks by leading European artists. Suspected of being sent to New York for sale by the French art dealer Martin Fabiani for the economic benefit of German-occupied France, the captured collection—originally the property of art dealer Ambroise Vollard—was confiscated as a prize of war and sent to Ottawa, Canada, for wartime safekeeping. The National Gallery of Canada stored the collection from 1940 to 1949, when British courts instructed the collection’s Canadian custodian to release it to its rightful owners, Fabiani and the Vollard heirs. This essay reframes the wartime journey of the Vollard-Fabiani collection and challenges the long-held notion that it belongs to the narrative of Nazi-looted cultural property. This essay also highlights an important role played by the National Gallery of Canada during World War II.
Early unpredictability predicts increased adolescent externalizing behaviors and substance use: A life history perspective
Authors: Doom Jenalee R. , Vanzomeren-Dohm Adrienne A. , Simpson Jeffry A.
Published: December 2015

According to evolutionary life history models, environmental harshness and unpredictability can both promote a fast life history strategy characterized by increased risk taking and enacting short-term, opportunistic behaviors. The current longitudinal study tests whether environmental unpredictability during childhood has stronger effects on risky behavior during adolescence than harshness, and whether there may be an early “sensitive period” during which unpredictability has particularly strong and unique effects on these outcomes. Using data from the Minnesota Longitudinal Study of Risk and Adaptation, prospective assessments of environmental unpredictability (changes in residence, cohabitation, and parental occupation) and harshness (mean socioeconomic status) from birth into adolescence were used to predict self-reported externalizing behaviors and substance use at age 16 (N = 220). Exposure to greater early unpredictability (between ages 0 and 5) predicted more externalizing behaviors as well as more alcohol and marijuana use at age 16, controlling for harshness and later unpredictability (between ages 6 and 16). Harshness predicted adolescent substance use, and later unpredictability predicted adolescent externalizing behaviors at the trend level. Early unpredictability and harshness also interacted, such that the highest levels of risk taking occurred in individuals who experienced more early unpredictability and lived in harsher environments. Age 16 externalizing behaviors, but not substance use, mediated the association between early unpredictability and externalizing/criminal behaviors at age 23. We discuss how exposure to early environmental unpredictability may alter biological and social–cognitive functioning from a life history perspective.
Climate sensitivity
Authors: Thompson Roy
Published: December 2015

Earth has been habitable through most of its history, but the anthropogenically mediated greenhouse effect, if sufficiently strong, can threaten Earth's long-standing equability. This paper's main aim is to determine the strength of the anthropogenic greenhouse effect (the climate sensitivity) from observational data and basic physics alone, without recourse to the parameterisations of earth-system models and their inevitable uncertainties. A key finding is that the sensitivity can be constrained by harmonising historical records of land and ocean temperatures with observations of potential climate-change drivers in a non-steady state, energy-balance equation via a least-squares optimisation. The global temperature increase, for a CO2doubling, is found to lie (95 % confidence limits) between 3.0oC and 6.3oC, with a best estimate of +4oC. Under a business-as-usual scenario, which assumes that there will be no significant change in people's attitudes and priorities, Earth's surface temperature is forecast to rise by 7.9oC over the land, and by 3.6oC over the oceans, by the year 2100. Global temperature rise has slowed in the last decade, leading some to question climate predictions of substantial 21st-Century warming. A formal runs test, however, shows that the recent slowdown is part of the normal behaviour of the climate system.