939 resultados para extrastomatic bodies


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This thesis concerns the role of scientific expertise in the decision-making process at the Swiss federal level of government. It aims to understand how institutional and issue-specific factors influence three things: the distribution of access to scientific expertise, its valuation by participants in policy for- mulation, and the consequence(s) its mobilization has on policy politics and design. The theoretical framework developed builds on the assumption that scientific expertise is a strategic resource. In order to effectively mobilize this resource, actors require financial and organizational resources, as well as the conviction that it can advance their instrumental interests within a particular action situation. Institutions of the political system allocate these financial and organizational resources, influence the supply of scientific expertise, and help shape the venue of its deployment. Issue structures, in turn, condition both interaction configurations and the way in which these are anticipated by actors. This affects the perceived utility of expertise mobilization, mediating its consequences. The findings of this study show that the ability to access and control scientific expertise is strongly concentrated in the hands of the federal administration. Civil society actors have weak capacities to mobilize it, and the autonomy of institutionalized advisory bodies is limited. Moreover, the production of scientific expertise is undergoing a process of professionalization which strengthens the position of the federal administration as the (main) mandating agent. Despite increased political polarization and less inclu- sive decision-making, scientific expertise remains anchored in the policy subsystem, rather than being used to legitimate policy through appeals to the wider population. Finally, the structure of a policy problem matters both for expertise mobilization and for the latter's impact on the policy process, be- cause it conditions conflict structures and their anticipation. Structured problems result in a greater overlap between the principal of expertise mobilization and its intended audience, thereby increasing the chance that expertise shapes policy design. Conversely, less structured problems, especially those that involve conflicts about values and goals, reduce the impact of expertise.

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?The Public Health Agency has identified ways of delivering cardiovascular services that will help to tackle health inequalities. These are described in a new "health impact assessment" report, launched on 1 June at the Maureen Sheehan Centre, Belfast.The PHA, in partnership with a wide variety of community, voluntary and statutory bodies, leads the work to improve cardiovascular health and wellbeing, through better prevention and treatment services, delivered through a 'cardiovascular service framework'. The result of a wide consultation, this new report will help to improve the way those services are delivered by focusing on the needs of disadvantaged people.Explaining the importance of this work, Dr Adrian Mairs, Consultant in Public Health Medicine, PHA, said: "The Public Health Agency was set up to tackle health inequalities and promote better health and wellbeing across Northern Ireland. Despite many improvements in prevention and treatment, cardiovascular diseases remain the main cause of death in Northern Ireland. We know that these diseases, including heart disease, stroke, circulation problems, diabetes and renal disease have a greater and more severe impact on people living in poverty. "This work will help us to reduce the health inequalities that exist in our society by improving the way cardiovascular services are developed and delivered, eg ensuring stop smoking services meet local needs, identifying and treating high blood pressure, and helping people to take their medicines properly."The health impact assessment has been developed from other work, including a literature review, cardiovascular health and wellbeing profile, and full technical report. All of these resources are available on the PHA website, under 'Directorates', 'Service Development and Screening'. The work will also be used to help the development of service frameworks covering other disease areas. Putting a health inequalities focus on Northern Ireland cardiovascular service framework - Summary report: www.publichealth.hscni.net/publications/putting-health-inequalities-focu... health and wellbeing profile for Northern Ireland: www.publichealth.hscni.net/publications/cardiovascular-health-and-wellbe... health and wellbeing in Northern Ireland - Literature review: www.publichealth.hscni.net/publications/cardiovascular-health-and-wellbe... focus (newsletter): www.publichealth.hscni.net/publications/hia-focus

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Freshwater snails belonging to the genus Biomphalaria act as intermediate hosts for the parasite trematode Schistosoma mansoni in Africa and in the neotropical region. Identification of such molluscs is carried out based on morphological characters and the presence of cercariae is verified through squeezing snails between two glass slides or by exposing them to artificial light. However, sometimes, the material collected includes molluscs with decomposed bodies or, yet, only empty shells, which precludes their identification and S. mansoni detection. Due to these difficulties, we have developed a methodology in which DNA may be extracted from traces of organic material from inside shells in order to identify molluscs through polymerase chain reaction and restriction fragment length polymorphism and to detect S. mansoni into these snails, by using low stringency polymerase chain reaction. Species-specific profiles obtained from B. glabrata, B. straminea, and B. tenagophila snails and their shells, maintained in laboratory for ten years, showed the same profiles. S. mansoni profiles showed to be present in shell specimens as far as the eighth week after being removed from aquarium.

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In March 2015, over 80 people, representing food banks, churches, advice services, community organisations, statutory agencies and universities attended the ‘Enough is Enough’  launch event in City Church, Belfast to examine the rising demand for emergency food across the city.The ‘Enough is Enough’ project aims to harness the expertise of health and social care professionals, city councillors, advice workers, food banks, community and faith based organisations and strategic bodies across Belfast to collectively address the issue of food poverty. This scoping study lays the foundation for developing an action plan to tackle food poverty in Belfast in collaboration with the community, voluntary and statutory sectors.The Belfast Food Network (BFN) commissioned the project with funding from the Public Health Agency. The research was carried out by Jenny McCurry, who also wrote the report, on behalf of Advice NI.  The project was initiated and developed by Dr Elizabeth Mitchell, Institute of Public Health in Ireland, in her role as convener of the BFN Food Poverty Working Group (BFN/FPWG). Thanks are due to Kevin Higgins, Head of Policy, Advice NI, and Kerry Melville, Co-ordinator, BFN, for their involvement in the project.The BFN is a founding member of the pioneering Sustainable Food Cities Network (SFC). Therapidly growing BFN was established in March 2014 to work with partners to establish a successful Sustainable Food City in Belfast.ACCESS AUDIO AND VIDEO FROM THE EVENT

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Faecal samples from a couple of bare-throated bellbirds Procnias nudicollis imported from Brazil to Barcelona Zoo contained oocysts of Isospora araponga n. sp. Sporulated oocysts were subspherical to broadly ellipsoidal, 19.5 (17-22) × 15.5 (14-16.5) µm, shape index (length:width ratio) 1.26 (1.13-1.38) with smooth and colourless bilayered wall, about 1 µm thick, and with varying number (1-3) of polar granule, but without a micropyle or residuum. The sporocysts were ellipsoidal, slightly asymmetric, 12.5 (12-13) × 8.5 (7.5-9) µm with barely visible Stieda body and indistinguishable substieda body. Sporozoites were elongated, possessing smooth surface and two distinct refractile bodies.

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"In the nineties, dialogue in the Irish education system has been frenetic and painful at times. But it has gradually led to an extraordinary cohesion and partnership in the system. The book tracks the major consultations - and confrontations - of the nineties and it explores the personalities and policies of the protagonists - ministers, officials, leaders of Church bodies and third-level institutions, representatives of teachers' unions and parents' organisations." "All of the important consultation documents of the decade are here, the various drafts of the Green and White Papers - some benign, some infamous - the Bills, the Acts. The big issues are expertly set forth - intermediate structures and regionalisation, school governance and boards of management, the role of the Churches, higher education and the abolition of tuition fees."-This resource was contributed by The National Documentation Centre on Drug Use.

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A total of 190 research documents were identified in line with the criteria agreed between the researchers and the CAAB, and are included in the audit. The key findings from the analysis of the audit are as follows:    - Research identified in the audit has tended to focus on child protection and the child protection system generally, as well as sexual abuse. This research has primarily been undertaken by clinicians and academics, and spans across sectors.   - Over half, (110 or 58%) of the research falls under the heading of policy/practice reviews/analysis. This is further reflected in the fact that the research most commonly focused on operating procedures, followed by practice issues and the policy framework, both in studies with a single focus and those with multiple foci.   - The most common type of publication was peer reviewed article (74 or 39%), with commissioned research accounting for just 7% (13). This is in line with the findings that 68% (128) of commissioning/publishing bodies and 74% (139) of research bodies were in the academic sector.   - The research published and/or commissioned by the statutory sector follows the pattern found in the audit generally, with the most common type of study being policy/practice review/analysis (27 or 48%) and the most common focus being operating procedures (22 or 39%).   - Information sources rarely incorporated primary research with children, with only 14 studies (8%) citing direct contact with children and young people. Information on children was more commonly gathered from case files, professionals and family members.   - The topics covered in the identified research were very wide-ranging but closely related to the primary subject area (type of abuse) and the sector in which the research was located.   One conclusion stated that: There is a shortage of child protection-focused research on the factors that cause and perpetuate child abuse, such as homelessness, addiction, parental mental illness and domestic violence. The need for material on these areas is demonstrated by the nature and scale of reports to the child protection system and the removal of some children from their families into out of home care as a result of the above mentioned adversities.This resource was contributed by The National Documentation Centre on Drug Use.

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A review is made of the recorded species of the coccidian genus Cyclospora and major events leading up to the discovery of C. cayetanensis, which is responsible for serious outbreaks of diarrhoea in man and is one of the aetiological agents of "traveller's diarrhoea". Humans appear to be the specific hosts, with the entire life-cycle in the intestine: to date there is no convincing evidence that the disease is a zoonosis. A description is given of oocysts and endogenous stages of C. schneideri n.sp., in the snake Anilius scytale scytale. Sporulation is exogenous and completed after about one week at 24-26º. Mature oocysts 19.8 × 16.6 (15.1 × 13.8-25.7 × 20.1), shape-index 1.2 (1.0-1.3): no oocyst residuum or polar bodies. Oocyst wall a single colourless, smooth layer with no micropyle: it is rapidly deformed or broken. Sporocysts 13.6 × 9.4 (11.3 × 8.3-15.1 × 9.9), shape-index 1.4 (1.2-1.5) with an inconspicuous Stieda body. Sporozoites 11-13 × 2.5-3. Endogenous stages are intracytoplasmic in the epithelial cells of the small intestine and with the characters of the Eimeriorina.

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Three isosporan species are described from the double-collared seedeater, Sporophila caerulescens from Eastern Brazil. Isospora sporophilae n. sp. oocysts spherical to subspherical; oocyst wall bi-layered, smooth, inner layer colorless to pale yellowish, 21.6 × 20.9 (19.20-23.20 × 18.40-22.60) µm, shape-index 1.03 ± 0.02 (1-1.10), with no micropyle or oocyst residuum. Polar bodies splinter-like or comma-like. Sporocysts ovoidal, 15.2 × 10.6 (17.40-12.80 × 12.60-8.40) µm, shape-index 1.43 ± 0.14 (1.17-1.81), with knob-like Stieda body and residuum. Large crystalloid body in the center of the sporocyst. Isospora flausinoi n. sp. oocysts spherical to subspherical, oocyst wall bi-layered, smooth, colorless, 17.30 x 16.53 (14-20 × 13.60-20) µm, shape-index 1.05 ± 0.04 (1-1.21). Micropyle and oocyst residuum absent; presence of a large polar body. Sporocyst piriform, 14.88 x 10.70 (11.80-18 × 8-12.40) µm, shape-index 1.40 ± 0.18 (1.07-1.77), with smooth, thin, single-layered wall. Sporocyst with rounded Stieda body with no substieda body, and residuum composed of granular material. Isospora teixeirafilhoi n. sp. oocysts spherical to subspherical, oocyst wall bi-layered, smooth, colorless, 17.41 x 16.81 (15.60 19.40 × 14.20-18.80) µm. Shape-index 1.04 ± 0.08 (1-1.12). Micropyle and oocyst residuum absent; presence of a small double-lobuled polar body. Sporocyst ovoid, 11.74 × 8.12 (9-14.20 × 6.20-9.40) µm. Shape-index 1.46 ± 0.23 (1.06-1.88). Sporocyst with knob-like Stieda body, no sub-Stieda body and residuum composed of granular material.

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International standardisation refers to voluntary technical specifications pertaining to the production and exchange of goods and services across borders. The paper outlines a theoretical framework which spells out the contention of emerging hybrid forms of non state authority in the global realm. It argues that international standardisation is confronted with a deep rift between promoters of further socialisation of international standards (i.e. a transfer of the universal scope of law into the official framework of standard-setting bodies) and multinational corporations in favour of globalisation of technical standards (i.e. universal recognition of minimal sectorial market-based standards). The problems related to the development of a possible ISO standard of system management in corporate social responsibility provides evidence of the argument.

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This study examines the impact of policy on poverty and inequality in Britain since 1997This research shows what effect policies introduced since 1997 have had on reducing poverty and inequality. It offers a considered assessment of impacts over a decade:How did policies change, before 1997 and since then?What evidence is there of impacts on key outcomes?What gaps or problems remain or emerged?The study covers a range of subjects, including public attitudes to poverty and inequality, children and early years, education, health, employment, pensions, and migrants. It measures the extent of progress and also considers future direction and pressures, particularly in the light of recession and an ageing society.The research draws on extensive analysis of policy documents, analysis by government departments and research bodies, published statistics and evaluations, analysis of large-scale datasets, micro-simulation modelling and a long-running qualitative study with residents of low-income neighbourhoods.��

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This contribution explores the role of international standards in the rules governing the internationalisation of the service economy. It analyses on a cross-institutional basis patterns of authority in the institutional setting of service standards in the European and Amercian context. The entry into force of the World Trade Organisation (WTO) in 1995 gave international standards a major role in harmonising the technical specifications of goods and services traded on the global market Despite the careful wording of the WTO, a whole range of international bodies still have the capacity to define generic as well as detailed technical specifications affecting how swelling offshore services are expected to be traded on worldwide basis. The analysis relies on global political economy approaches to identify constitutive patterns of authority mediating between the political and the economic spheres on a transnational space. It extends to the area of service standards the assumption that the process of globalisation is not opposing states and markets, but a joint expression of both of them including new patterns and agents of structural change through formal and informal power and regulatory practices. The paper argues that service standards reflect the significant development of a form of transnational hybrid authority, that blurs the distinction between private and public actors, whose scope spread all along from physical measures to societal values, and which reinforces the deterritorialisation of regulatory practices in contemporary capitalism. It provides evidence of this argument by analysing the current European strategy regarding service standardization in response to several programming mandate of the European Commission and the American views on the future development of service standards.

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The new single Equality Duty represents a next step in equality legislation. The existing public sector equality duties for race, disability and gender were pioneering pieces of legislation which placed the public sector at the forefront of tackling discrimination and inequality.Many have seen the benefits the existing duties have delivered, but now is the time to go further. the aim of this bill is to extend the benefits of the equality duties to the other protected characteristics of age, sexual orientation, gender reassignment, and religion or belief.The Equality Duty will require public bodies to think about how they can eliminate discrimination, advance equality of opportunity and foster good relations for all the protected groups.

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Recently published guidelines��in the UK��relating to sight tests among people with dementia go some of the way to addressing the specific needs of this group. However, there is still a long way to go in terms of improving the provision of eye care services and optimising the visual health of this group.A��study, published by the Thomas Pocklington Trust,��which examines this subject - The development of professional guidelines for the eye examination of people with dementia - was presented at the first ever national “Dementia and Sight Loss conference” in London (1st December) - a forum where 100 dementia and sight loss professionals met to discuss ways to tackle the challenge of concurrent dementia and sight loss. The study, by researchers at the University of Bradford Schools of Optometry and Health Studies, reviewed procedures for sight tests and eye examinations among those with dementia. It found that policy and practice were hampered by a serious lack of basic research into concurrent dementia and sight loss and prompted recommendations which could lead to improved procedures, tools and techniques.Recommendations prompted by the study outline seven steps towards improving policy and practice:Conduct a systematic study of the availability and uptake of sight tests among people with dementia. Set up a website for people with dementia and their carers with information on how dementia affects eye health, and the importance of eye examinations. Develop education and training for optometrists and care home staff. Compile a list of optometrists experienced in providing eye care for people with dementia. Develop a template for recording the results of eye examinations in people with dementia – something which can be endorsed by professional bodies and made available to care homes. Measure the effectiveness of eye care, such as sight tests and cataract removals, on the quality of life of people with dementia. Research clinical testing methods so that guidelines can be strengthened. Measuring contrast sensitivity, for example, in someone with dementia could be vital as an inability to judge contrasts can make daily tasks impossible.To access the discussion paper please follow this link: The development of professional guidelines for the eye examination of people with dementia ��

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RÉSUMÉ Après implantation dans l'utérus, le foetus de mammifère est composé de trois populations différentes de cellules: l'epiblast, l'ectoderme extraembryonnaire et l'endoderme viscéral. Pendant la gastrulation, les cellules de l'epiblast donnent naissance aux trois lignées germinales: l'ectoderme, le mésoderme et l'endodermes. Les lignées germinales produisent par la suite les différents tissus et organes du corps embryonnaire et adulte. Les cellules de l'ectoderme extraembryonnaire donnent par la suite le composant foetal du placenta qui est essentiel à la survie de l'embryon dans l'utérus. L'épiblast et l'ectoderme extraembryonnaire sont entourés par l'endoderme viscéral et forment une structure connue sous le nom de bouton embryonnaire. L'endoderme viscéral joue un rôle important dans l'embryogenèse car il comporte une sous-population de cellules appelées l'endoderme viscéral antérieur dont les signaux influencent l'épiblast adjacent et déterminent le futur axe antéro-postérieur de l'embryon. La protéine de signalisation Nodal de la famille des TGFß est essentielle dans l'épiblast pour spécifier le mésendoderme, l'endoderme viscéral antérieur, ainsi que pour maintenir les cellules souche de l'ectoderme extraembryonnaire. Ainsi, dans les embryons mutants pour Nodal, aucun axe antéro-postérieur n'est établi, les lignées germinales ne sont pas spécifiés et le placenta ne se développe pas. Au niveau moléculaire, comme pour les protéines de la famille des TGFß, Nodal est initialement synthétisée sous forme de précurseur avant d'être clivée de façon endoproteolytique par des protéanes sécrétées, les proprotéines convertases du type subtilisin (SPC), qui suppriment la partie inhibitrice N-terminale du pro peptide. Dans ce contexte, le projet de ma thèse a été d'analyser l'influence des SPC sur la fonction de Nodal en employant une combinaison d'approches génétiques et biochimiques. Premièrement, nous avons constaté que le clivage du précurseur par les protéases active Nodal, mais en même temps augmente son turn-over et diminue la portée de son action. Deuxièmement, dans l'embryon, il apparaît que Nodal est activé par l'action combinée de Furin et de PACE4, deux protéases sécrétées qui sont spécifiquement exprimées dans les cellules de l'ectoderme extraembryonnaire, donc adjacentes au domaine d'expression de Nodal. De manière similaire aux mutants de Nodal, les embryons mutants pour les deux protéases ne forment pas d'endoderme viscéral antérieur et ne gastrulent pas. Cependant, certains gènes cible de Nodal restent exprimés, suggérant que toutes les activités de Nodal ne sont pas dépendent du clivage par les SPCs. En effet, la génération et l'analyse de mutants portant un allèle knock-in qui code pour une forme mutante de Nodal résistante aux SPC, ont montré que ces mutants ont les caractères phénotypique des mutants de Nodal seulement de façon partielle. La formation de mésoderme est partiellement induite, et de façon remarquable, la forme de Nodal résistante aux SPC est capable d'agir à une distance de sa source, maintenant l'expression de ses propres protéases et d'autres gènes essentiels pour la spécification de l'ectoderme extraembryonnaire. Ensemble, ces résultats prouvent que par leur action directe les protéases extraembryonnaire modulent la signalisation de Nodal pendant le développement mammifère précoce. SUMMARY : Early after implantation in the uterus, the mammalian conceptus is composed of three different cell populations: the epiblast, the extraembryonic ectoderm and the visceral endoderm. During gastrulation, epiblast cells give rise to the three embryonic germ layers: the ectoderm, the mesoderm and the endoderm. These germ layers then generate the different tissues and organs of the embryonic and adult bodies. In parallel, extraembryonic ectoderm cells give rise to the fetal component of the placenta, which is essential for the survival of the embryo in the uterus. Both the epiblast and extraembryonic ectoderm are surrounded by the visceral endoderm to form a structure known as the egg cylinder. The visceral endoderm plays an important role as it harbours a subpopulation of cells called the anterior visceral endoderm, from which signals influence the adjacent epiblast and determine the future antero-posterior embryonic axis. The TGFß-related signalling protein Nodal is required within the epiblast to specify the mesoderm, the endoderm,the anterior visceral endoderm and is also essential to maintain stem cells in the extraembryonic ectoderm. Thus, in Nodal null conceptuses, no antero-posterior axis is established, the germ layers are not specified and the placenta does not develop. At the molecular level, Nodal, like related proteins of the TGFß family, is initially synthesized as a precursor and undergoes endoproteolytic cleavage by secreted proteases of the subtilisin-like proprotein convertases (SPC) to remove an inhibitory N-terminal pro peptide. In the embryo, Nodal is activated by the combined action of Furin and PACE4, two secreted SPCs that are specifically expressed in cells of the extraembryonic ectoderm, thus adjacent to the Nodal expression domain. Similar to Nodal null .embryos, mutant embryos lacking both these proteases fail to specify the anterior visceral endoderm and to undergo gastrulation. However, these mutants still express a subset of Nodal target genes, suggesting that part of Nodal activity is independent on cleavage by SPCs. Indeed, by generating and analyzing mutants with a knock-in allele that encodes an SPC-resistant mutant form of Nodal, I could show that they retain a subset of Nodal activities. Mesoderm formation is partially induced, but most remarkably, SPC-resistant Nodal form is able to act at a distance from its source, maintaining the expression of its proteases and of other genes essential for maintenance of the extraembryonic ectoderm.