Effects of species loss and nutrients on biodiversity:Anthropogenic impacts on marine biodiversity: effects of enhanced nutrients and species loss on the biodiversity and ecosystem functioning of rocky shores

The focus of this study was to disentangle the effects of multiple stressors on biodiversity, ecosystem functioning and stability. This project examined the effects of anthropogenic increased nutrient loads on the diversity of coastal ecosystems and the effects of loss of species on ecosystem functioning. Specifically, the direct effect of sewage outfalls on benthic communities was assessed using a fully replicated survey that incorporated spatial and temporal variation. In addition, two field experiments examined the effects of loss of species at multiple trophic levels, and tested for potential interactive effects with enhanced nutrient concentration conditions on benthic assemblage structure and ecosystem functioning. This research addressed priority issues outlined in the Biodiversity Knowledge Programme for Ireland (2006) and also aimed to deliver information relevant to European Union (EU) directives (the Water Framework Directive [WFD], the Habitats Directive and the Marine Strategy Framework Directive).

"This mere speck on the surface of the waters": Rockall aka Waveland

Rockall is a tiny granite knoll isolated in the stormy waters of the North Atlantic. It is not habitable and has of itself no economic value. However, given its location it has been a prize insofar as at one time it was thought its possession could bring control of an exclusive economic zone. Iceland, Ireland and Denmark laid claim in addition to the UK, which had annexed Rockall in 1955, the last territory to be taken into the British Empire. In 1972 Rockall was declared to be part of Scotland. However the United Nations Convention on the Laws of the Sea (1982) now precludes rocks incapable of supporting life to be awarded economic zones. Interest in Rockall then reverted to symbolism especially in its occupation by Greenpeace in 1997 when the global state of Waveland was declared from Rockall’s summit, with Rockall itself as the capital. Greenpeace stayed on Rockall longer than anybody else and a claim has been established to it thereby, but Waveland itself collapsed with the failure of the company that serviced its online presence.

Plant extract: A promising biomatrix for ecofriendly, controlled synthesis of silver nanoparticles

Uses of plants extracts are found to be more advantageous over chemical, physical and microbial (bacterial, fungal, algal) methods for silver nanoparticles (AgNPs) synthesis. In phytonanosynthesis, biochemical diversity of plant extract, non-pathogenicity, low cost and flexibility in reaction parameters are accounted for high rate of AgNPs production with different shape, size and applications. At the same time, care has to be taken to select suitable phytofactory for AgNPs synthesis based on certain parameters such as easy availability, large-scale nanosynthesis potential and non-toxic nature of plant extract. This review focuses on synthesis of AgNPs with particular emphasis on biological synthesis using plant extracts. Some points have been given on selection of plant extract for AgNPs synthesis and case studies on AgNPs synthesis using different plant extracts. Reaction parameters contributing to higher yield of nanoparticles are presented here. Synthesis mechanisms and overview of present and future applications of plant-extract-synthesized AgNPs are also discussed here. Limitations associated with use of AgNPs are summarised in the present review.

Does chemical composition of individual Scots pine trees determine the biodiversity of their associated ground vegetation?

Despite plant secondary metabolites being major determinants of species interactions and ecosystem processes, their role in the maintenance of biodiversity has received little attention. In order to investigate the relationship between chemical and biological diversity in a natural ecosystem, we considered the impact of chemical diversity in individual Scots pine trees (Pinus sylvestris) on species richness of associated ground vegetation. Scots pine trees show substantial genetically determined constitutive variation between individuals in concentrations of a group of secondary metabolites, the monoterpenes. When the monoterpenes of particular trees were assessed individually, there was no relationship with species richness of associated ground flora. However, the chemical diversity of monoterpenes of individual trees was significantly positively associated with the species richness of the ground vegetation beneath each tree, mainly the result of an effect among the non-woody vascular plants. This correlation suggests that the chemical diversity of the ecosystem dominant species has an important role in shaping the biodiversity of the associated plant community. The extent and significance of this effect, and its underlying processes require further investigation.

Caged birds and cloning machines: how student imagery 'speaks' to us about cultures of schooling and student participation

With the advent of the United Nations Convention on the Rights of the Child (CRC), there is an increasing requirement that schools ensure children and young people's views are voiced, listened to and taken seriously on matters of significance. Encouraging these shifts by law is one thing; changing the culture in schools is another. For a significant proportion of schools, actively engaging students' voices on how they experience education poses a significant challenge and crucial gaps may exist between the rhetoric espoused and a school's readiness for genuine student involvement. This ethnographic study illuminates tensions that persist between headteachers' espoused views of how students are valued and students' creative images of their actual post-primary schooling experience. If cultures of schooling are to nurture the true spirit of democratic pupil participation implied by changes in the law, there is a need to develop genuine processes of student engagement in which students and staff can collaborate towards greater shared understandings of a school's priorities.

Widening our knowledge concerning young looked after children: the case for research using sociological models of childhood

The Assessment and Action framework for looked after children, designed to improve outcomes for all children in public care and those at home on care orders, is now well established in the UK. This paper offers a critical evaluation of the framework by examining the model of childhood upon which it is premised and by exploring its relationship to children's rights as conceptualized in the United Nations Convention on the Rights of the Child (1989). It will be argued that the particular child development model which underpins the framework addresses the rights of looked after children to protection and provision but does not allow for their participation rights to be sufficiently addressed. A critical review of the research concerning the education and health of looked after children is used to illustrate these points. It will be argued that what are missing are the detailed accounts of looked after children themselves. It is concluded that there is a need for the development of additional research approaches premised upon sociological models of childhood. These would allow for a greater engagement with the participation rights of this group of children and complement the pre-existing research agenda

Journal article: Children and Religion under Article 14 UNCRC: A Critical Analysis

This article examines the text of Article 14 of the UN Convention on the Rights of the Child 1989 and the work of the UN Committee on the Rights of the Child. It considers the text of the article and its travaux préparatoires; it then provides an analysis of the issues considered by the Committee: the concept of the evolving capacities of the child, freedom of religious choice, freedom of manifestation, and education. It also highlights the problems that have emerged in the Committee’s work, in the light of a theoretical framework of the right of the child to religious freedom in international law. It concludes that the Committee fails children in relation to their religion and suggests some positive steps to be taken by the Committee.

Freedom of Expression and Hate Speech

This is a study of free speech and hate speech with reference to the international standards and to the United States jurisprudence. The study, in a comparative and critical fashion, depicts the historical evolution and the application of the concept of ‘free speech,’ within the context of ‘hate speech.’ The main question of this article is how free speech can be discerned from hate speech, and whether the latter should be restricted. To this end, it examines the regulation of free speech under the First Amendment to the United States Constitution, and in light of the international standards, particularly under the International Convention on the Elimination of All Forms of Racial Discrimination, International Covenant on Civil and Political Rights, and the European Convention on Human Rights and Fundamental Freedoms. The study not only illustrates how elusive the endeavour of striking a balance between free speech and other vital interests could be, but also discusses whether and how hate speech should be eliminated within the ‘marketplace of ideas.’

The European Court of Human Rights and Domestic Violence

Domestic violence is an issue that affects vast numbers of women throughout the world. It seems to constitute a clear violation of at least three articles of the European Convention on Human Rights, however it has only been recognised as being a human rights issue relatively recently. Indeed, until 2007 domestic violence had not been directly addressed by the European Court of Human Rights. However, the Court has now addressed the issue in a series of recent cases. This paper discusses what positive obligations states parties to the Convention now have in relation to the issue of domestic violence. It proceeds to discuss the gaps in the Court’s jurisprudence in this area at present and how the case law of the Court may develop in the future.

Combining biomarker screening and mass-spectrometric analysis to detect hormone abuse in cattle

Since the introduction of the European ban on hormones in 1989, its implementation has proved to be an enormous challenge to regulatory authorities, because the great economic benefits that result from illegal misuse of growth promoters in animal production encourage their continued use. In efforts to challenge black-market trade in hormones, there have been many analytical advances. Recently, both effect-based bioanalysis for screening to target illegal misuse and improved mass-spectrometry-based confirmatory analysis have greatly increased the likelihood of detecting hormone abuse. This review outlines analytical methods currently used for detecting hormone abuse and presents advances in new approaches based on biological determinants that may complement these techniques in the future. (C) 2009 Elsevier Ltd. All rights reserved.

Realising political equality: the European Court of Human Rights and positive obligations in a democracy'

The European Convention on Human Rights (ECHR) speaks of the importance of an “effective political democracy” in its Preamble, though it is only in Article 3 of Protocol 1 (P1-3) that we find a right to free elections. This paper discusses the role of “positive obligations” under P1-3. This paper outlines the positive obligations in P1-3 focusing on obligations where the state is required to do more than just change the law. This may mean providing resources or facilities, adopting regulatory frameworks or creating new institutions. The paper highlights specific positive obligations that need to be further developed in the jurisprudence of the European Court of Human Rights (ECtHR). Sometimes these can be developed by analogy with positive obligations recognised in other areas of ECtHR jurisprudence. However, beyond these cases, states should ensure that members of vulnerable and disadvantaged minorities are able to participate in the electoral process and should ensure that dominant political groups cannot abuse their political power to exclude other parties unfairly. This is necessary to realise equal political rights. The second section of this paper sketches some preliminary points about the Strasbourg institutions’ approach to P1-3. After that, the third section identifies circumstances where the ECtHR should apply a more intense scrutiny in P1-3 cases. The fourth, fifth and sixth sections look at positive obligations relating to the right to vote, the right to run for election and the regulation of political parties.

Multiculturalism, freedom of religion, equality, and the British constitution: The JFS case considered

In the JFS case, the Supreme Court of the United Kingdom held that the admissions policy of a Jewish faith school constituted unlawful racial discrimination because it used the Orthodox Jewish interpretation of who is Jewish as a criterion for determining admission to the school. A detailed discussion of the case is located in the context of two broader debates in Britain, which are characterized as constitutional in character or, at least, as possessing constitutional properties. The first is the debate concerning the treatment of minority groups, multiculturalism, and the changing perceptions in public policy of the role of race and religion in national life. It is suggested that this debate has become imbued with strong elements of what has been termed “post-multiculturalism”. The second debate is broader still, and pertains to shifting approaches to “constitutionalism” in Britain. It is suggested that, with the arrival of the European Convention on Human Rights and EU law, the U.K. has seen a shift from a pragmatic approach to constitutional thinking, in which legislative compromise played a key part, to the recognition of certain quasi-constitutional principles, allowing the judiciary greatly to expand its role in protecting individual rights while requiring the judges, at the same time, to articulate a principled basis for doing so. In both these debates, the principle of equality plays an important role. The JFS case is an important illustration of some of the implications of these developments.