501 research outputs found
(Re)creating the Jewish State:projects of (in)security and the disjuncture to price-tag violence
Jewish-Israeli settlements built over the State of Israelâs internationally-recognised territorial borders are sites of contestation. The focus of this thesis is upon conflicts and contestations which have developed between the State of Israel and some of its own subjects, Jewish settlers, over the evacuation of settlement-communities and structures, and other perceived threats to settlement. From 2008, a new form of violence has been enacted by individuals in the settler community. Self-declared as Price-Tag violence, the attacks take different forms. These include vandalising Palestinian properties and spraying provocative graffiti, and throwing Molotov cocktails at properties. Whilst the attacks are predominantly perpetrated upon Palestinian targets, the attacks are directed at the State of Israel. Price-Tag attacks have also occurred directly on Israeli targets, such as Israeli military vehicles. Since 2011, mosques, churches and monasteries have been defiled with incendiary graffiti and have been torched. Such attacks reflect a heightened radicalism. A number of figures, including high-ranking Israeli security and military individuals, have warned of stark dangers which Price-Tag violence poses and classified it as acts of terror. The aim of this thesis is to trace a genealogy of Price-Tag violence and to critically ask why conflicts between the State and some settlers have developed. Politically and etiologically, I will analyse the origins of conflicts by identifying tensions in âZionism,â different meanings within the Jewish State of Israelâs (re)creation, and different projects within settlement. I will then focus on two key historic events which the Jewish State took against settlement: the Gaza Disengagement (2005) and the Amona outpost evacuation (2006). Situating these as significant disjunctive moments, I will assess (re)actions to these acts and their impacts on State-settler relations. With increased disjuncture in some State-settler relations, I will trace a taboo-breaking trajectory of the increased acceptability of violence to safeguard settlement, Land, and perceived security. The thesis will culminate in directly assessing the self-declared ânew eraâ of Price-Tag violence, uncovering its foundations, motivations and significance. Drawing on key concepts from Critical Security Studies and Political Geography, this thesis will make contributions to these sub-disciplines by showing central interactions between the State, space and (in)security throughout, and different natures of space, impacts of spatial practices, and different meanings of (in)security
(Re)creating the Jewish State:projects of (in)security and the disjuncture to price-tag violence
Jewish-Israeli settlements built over the State of Israelâs internationally-recognised territorial borders are sites of contestation. The focus of this thesis is upon conflicts and contestations which have developed between the State of Israel and some of its own subjects, Jewish settlers, over the evacuation of settlement-communities and structures, and other perceived threats to settlement. From 2008, a new form of violence has been enacted by individuals in the settler community. Self-declared as Price-Tag violence, the attacks take different forms. These include vandalising Palestinian properties and spraying provocative graffiti, and throwing Molotov cocktails at properties. Whilst the attacks are predominantly perpetrated upon Palestinian targets, the attacks are directed at the State of Israel. Price-Tag attacks have also occurred directly on Israeli targets, such as Israeli military vehicles. Since 2011, mosques, churches and monasteries have been defiled with incendiary graffiti and have been torched. Such attacks reflect a heightened radicalism. A number of figures, including high-ranking Israeli security and military individuals, have warned of stark dangers which Price-Tag violence poses and classified it as acts of terror. The aim of this thesis is to trace a genealogy of Price-Tag violence and to critically ask why conflicts between the State and some settlers have developed. Politically and etiologically, I will analyse the origins of conflicts by identifying tensions in âZionism,â different meanings within the Jewish State of Israelâs (re)creation, and different projects within settlement. I will then focus on two key historic events which the Jewish State took against settlement: the Gaza Disengagement (2005) and the Amona outpost evacuation (2006). Situating these as significant disjunctive moments, I will assess (re)actions to these acts and their impacts on State-settler relations. With increased disjuncture in some State-settler relations, I will trace a taboo-breaking trajectory of the increased acceptability of violence to safeguard settlement, Land, and perceived security. The thesis will culminate in directly assessing the self-declared ânew eraâ of Price-Tag violence, uncovering its foundations, motivations and significance. Drawing on key concepts from Critical Security Studies and Political Geography, this thesis will make contributions to these sub-disciplines by showing central interactions between the State, space and (in)security throughout, and different natures of space, impacts of spatial practices, and different meanings of (in)security
The role of ATP and adenosine in the control of hepatic blood flow in the rabbit liver in vivo
BACKGROUND: The role of adenosine and ATP in the regulation of hepatic arterial blood flow in the "buffer response" was studied in vitro and in a new in vivo model in the rabbit. The model achieves portal-systemic diversion by insertion of a silicone rubber prosthesis between the portal vein and inferior vena cava and avoids alterations in systemic haemodynamics. RESULTS: Hepatic arterial (HA) blood flow increased in response to reduced portal venous (PV) blood flow, the "buffer response", from 19.4 (3.3) ml min(-1 )100 g(-1 )to 25.6 (4.3) ml min(-1 )100 g(-1 )(mean (SE), p < 0.05, Student's paired t-test). This represented a buffering capacity of 18.7 (5.2) %. Intra-portal injections of ATP or adenosine (1 micrograms kg(-1)-0.5 mg kg(-1)) elicited immediate increases in HA blood flow to give -log ED(50 )values of 2.0 and 1.7 mg kg(-1 )for ATP and adenosine respectively. Injection of ATP and adenosine had no measurable effect on PV flow. In vitro, using an isolated dual-perfused rabbit liver preparation, the addition of 8-phenyltheophylline (10 MicroMolar) to the HA and PV perfusate significantly inhibited the HA response to intra-arterial adenosine and to mid-range doses of intra-portal or intra-arterial ATP (p < 0.001). CONCLUSIONS: It is suggested that HA vasodilatation elicited by ATP may be partially mediated through activation of P(1)-purinoceptors following catabolism of ATP to adenosine
Learning to work together - lessons from a reflective analysis of a research project on public involvement
Abstract
Background Patient and public involvement (PPI) is now an expectation of research
funders, in the UK, but there is relatively little published literature on what this means in
practice â nor is there much evaluative research about implementation and outputs.
Policy literature endorses the need to include PPI representation at all stages of
planning, performing and research dissemination, and recommends resource allocation
to these roles; but details of how to make such inputs effective in practice are less
common. While literature on power and participation informs the debate, there are
relatively few published case studies of how this can play out through the lived experience of PPI in research; early findings highlight key issues around access to
knowledge, resources, and interpersonal respect. This article describes the findings of a
case study of PPI within a study about PPI in research.
Methods The aim of the study was to look at how the PPI representativesâ inputs had
developed over time, key challenges and changes, and lessons learned. We used realist
evaluation and normalisation process theory to frame and analyse the data, which was
drawn from project documentation, minutes of meetings and workshops, field notes
and observations made by PPI representatives and researchers; documented feedback
after meetings and activities; and the structured feedback from two formal reflective
meetings.
Findings Key findings included the need for named contacts who support, integrate
and work with PPI contributors and researchers, to ensure partnership working is
encouraged and supported to be as effective as possible. A structure for partnership
working enabled this to be enacted systematically across all settings. Some individual
tensions were nonetheless identified around different roles, with possible implications
for clarifying expectations and deepening understandings of the different types of PPI
contribution and of their importance. Even in a team with research expertise in PPI, the
data showed that there were different phases and challenges to ânormalisingâ the PPI
input to the project. Mutual commitment and flexibility, embedded through
relationships across the team, led to inclusion and collaboration.
Conclusion Work on developing relationships and teambuilding are as important for
enabling partnership between PPI representatives and researchers as more practical
components such as funding and information sharing. Early explicit exploration of the
different roles and their contributions may assist effective participation and satisfaction
A critical role for IRF5 in regulating allergic airway inflammation
Interferon regulatory factor 5 (IRF5) is a key transcription factor involved in the control of the expression of pro-inflammatory cytokine and responses to infection, however its role in regulating pulmonary immune responses to allergen is unknown. We used genetic ablation, adenoviral vector-driven overexpression and adoptive transfer approaches to interrogate the role of IRF5 in pulmonary immunity and during challenge with the aero-allergen, house dust mite. Global IRF5 deficiency resulted in impaired lung function and extracellular matrix (ECM) deposition. IRF5 was also essential for effective responses to inhaled allergen, controlling airway hyper- responsiveness, mucus secretion and eosinophilic inflammation. Adoptive transfer of IRF5- deficient alveolar macrophages into the WT pulmonary milieu was sufficient to drive airway hyper-reactivity, at baseline or following antigen challenge. These data identify IRF5-expressing macrophages as a key component of the immune defence of the airways. Manipulation of IRF5 activity in the lung could therefore be a viable strategy for the redirection of pulmonary immune responses and thus, the treatment of lung disorders
TRESK is a key regulator of nocturnal suprachiasmatic nucleus dynamics and light adaptive responses
The suprachiasmatic nucleus (SCN) is a complex structure dependent upon multiple mechanisms to ensure rhythmic electrical activity that varies between day and night, to determine circadian adaptation and behaviours. SCN neurons are exposed to glutamate from multiple sources including from the retino-hypothalamic tract and from astrocytes. However, the mechanism preventing inappropriate post-synaptic glutamatergic effects is unexplored and unknown. Unexpectedly we discovered that TRESK, a calcium regulated two-pore potassium channel, plays a crucial role in this system. We propose that glutamate activates TRESK through NMDA and AMPA mediated calcium influx and calcineurin activation to then oppose further membrane depolarisation and rising intracellular calcium. Hence, in the absence of TRESK, glutamatergic activity is unregulated leading to membrane depolarisation, increased nocturnal SCN firing, inverted basal calcium levels and impaired sensitivity in light induced phase delays. Our data reveals TRESK plays an essential part in SCN regulatory mechanisms and light induced adaptive behaviours
Endothelin-1 directs airway remodeling and hyper-reactivity in a murine asthma model
BACKGROUND: The current paradigm describing asthma pathogenesis recognizes the central role of abnormal epithelial function in the generation and maintenance of the disease. However, the mechanisms responsible for the initiation of airway remodeling, which contributes to decreased lung function, remain elusive. Therefore, we aimed to determine the role of altered pulmonary gene expression in disease inception and identify proremodeling mediators. METHODS: Using an adenoviral vector, we generated mice overexpressing smad2, a TGF-ÎČ and activin A signaling molecule, in the lung. Animals were exposed to intranasal ovalbumin (OVA) without systemic sensitization. RESULTS: Control mice exposed to inhaled OVA showed no evidence of pulmonary inflammation, indices of remodeling, or airway hyper-reactivity. In contrast, local smad2 overexpression provoked airway hyper-reactivity in OVA-treated mice, concomitant with increased airway smooth muscle mass and peribronchial collagen deposition. Pulmonary eosinophilic inflammation was not evident, and there was no change in serum IgE or IgG1 levels. The profound remodeling changes were not mediated by classical pro-inflammatory Th2 cytokines. However, uric acid and interleukin-1ÎČ levels in the lung were increased. Epithelial-derived endothelin-1 and fibroblast growth factor were also augmented in smad2-expressing mice. Blocking endothelin-1 prevented these phenotypic changes. CONCLUSIONS: Innate epithelial-derived mediators are sufficient to drive airway hyper-reactivity and remodeling in response to environmental insults in the absence of overt Th2-type inflammation in a model of noneosinophilic, noninflammed types of asthma. Targeting potential asthma therapies to epithelial cell function and modulation of locally released mediators may represent an effective avenue for therapeutic design
The pi -> pi pi process in nuclei and the restoration of chiral symmetry
The results of an extensive campaign of measurements of the pi -> pi pi
process in the nucleon and nuclei at intermediate energies are presented. The
measurements were motivated by the study of strong pi pi correlations in
nuclei. The analysis relies on the composite ratio C_{pi pi}^A, which accounts
for the clear effect of the nuclear medium on the (pi pi) system. The
comparison of the C_{pi pi}^A distributions for the (pi pi)_{I=J=0} and (pi
pi)_{I=0,J=2} systems to the model predictions indicates that the C_{pi pi}^A
behavior in proximity of the 2m_pi threshold is explainable through the partial
restoration of chiral symmetry in nuclei.Comment: accepted for publication in Nucl. Phys.
Emergency ambulance service involvement with residential care homes in the support of older people with dementia : an observational study
© 2014 Amador et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.BACKGROUND: Older people resident in care homes have a limited life expectancy and approximately two-thirds have limited mental capacity. Despite initiatives to reduce unplanned hospital admissions for this population, little is known about the involvement of emergency services in supporting residents in these settings.METHODS: This paper reports on a longitudinal study that tracked the involvement of emergency ambulance personnel in the support of older people with dementia, resident in care homes with no on-site nursing providing personal care only. 133 residents with dementia across 6 care homes in the East of England were tracked for a year. The paper examines the frequency and reasons for emergency ambulance call-outs, outcomes and factors associated with emergency ambulance service use. RESULTS: 56% of residents used ambulance services. Less than half (43%) of all call-outs resulted in an unscheduled admission to hospital. In addition to trauma following a following a fall in the home, results suggest that at least a reasonable proportion of ambulance contacts are for ambulatory care sensitive conditions. An emergency ambulance is not likely to be called for older rather than younger residents or for women more than men. Length of residence does not influence use of emergency ambulance services among older people with dementia. Contact with primary care services and admission route into the care home were both significantly associated with emergency ambulance service use. The odds of using emergency ambulance services for residents admitted from a relative's home were 90% lower than the odds of using emergency ambulance services for residents admitted from their own home. CONCLUSIONS: Emergency service involvement with this vulnerable population merits further examination. Future research on emergency ambulance service use by older people with dementia in care homes, should account for important contextual factors, namely, presence or absence of on-site nursing, GP involvement, and access to residents' family, alongside resident health characteristics.Peer reviewedFinal Published versio
Reflections and Experiences of a Co-Researcher involved in a Renal Research Study
Background Patient and Public Involvement (PPI) is seen as a prerequisite for health research. However, current Patient and public involvement literature has noted a paucity of recording of patient and public involvement within research studies. There have been calls for more recordings and reflections, specifically on impact. Renal medicine has also had similar criticisms and any reflections on patient and public involvement has usually been from the viewpoint of the researcher. Roles of patient and public involvement can vary greatly from sitting on an Advisory Group to analysing data. Different PPI roles have been described within studies; one being a co-researcher. However, the role of the co-researcher is largely undefined and appears to vary from study to study. Methods The aims of this paper are to share one first time co-researcher's reflections on the impact of PPI within a mixed methods (non-clinical trial) renal research study. A retrospective, reflective approach was taken using data available to the co-researcher as part of the day-to-day research activity. Electronic correspondence and documents such as meeting notes, minutes, interview thematic analysis and comments on documents were re-examined. The co-researcher led on writing this paper. Results This paper offers a broad definition of the role of the co-researcher. The co-researcher reflects on undertaking and leading on the thematic analysis of interview transcripts, something she had not previously done before. The co-researcher identified a number of key themes; the differences in time and responsibility between being a coresearcher and an Advisory Group member; how the role evolved and involvement activities could match the co-researchers strengths (and the need for flexibility); the need for training and support and lastly, the time commitment. It was also noted that it is preferable that a co-researcher needs to be involved from the very beginning of the grant application. Conclusions The reflections, voices and views of those undertaking PPI has been largely underrepresented in the literature. The role of co-researcher was seen to be rewarding but demanding, requiring a large time commitment. It is hoped that the learning from sharing this experience will encourage others to undertake this role, and encourage researchers to reflect on the needs of those involved.Peer reviewedFinal Published versio
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