95 research outputs found
M Shed Indentity
Work on the branding and identity of Bristol Museums 'M Shed'
The home for Bristol’s conversations: A new £25 million ‘Museum of the city’ on
Bristol’s waterfront is due to open in 201
Gerrymanders and Theories of Law Making: A Study of Legislative Redistricting in Illinois
Redistricting politics in Illinois provide a novel opportunity for testing competing theories of law making. With this in mind, we demonstrate that the post-2000 Census redistricters in Illinois, dominated by Democrats, strategically reshuffled district demographic profiles in an attempt to convert relatively liberal Republican districts to conservative Democratic districts in the state Senate while decreasing and increasing the ideological diversity of the Democrats and Republicans, respectively, in the House. Such reshufflings suggest that legislative politics in Illinois are conducted in a manner consistent with vote-buying theories of coalition formation
Scaffold attachment factor B1 (SAFB1) heterozygosity does not influence Wnt-1 or DMBA-induced tumorigenesis
<p>Abstract</p> <p>Background</p> <p>Scaffold Attachment Factor B1 (SAFB1) is a multifunctional protein which has been implicated in breast cancer previously. We recently generated SAFB1 knockout mice (SAFB1<sup>-/-</sup>), but pleiotropic phenotypes including high lethality, dwarfism associated with low IGF-I levels, and infertility and subfertility in male and female mice, respectively, do not allow for straightforward tumorigenesis studies in these mice. Therefore, we asked whether SAFB1 heterozygosity would influence tumor development and progression in MMTV-Wnt-1 oncomice or DMBA induced tumorigenicity, in a manner consistent with haploinsufficiency of the remaining allele.</p> <p>Methods</p> <p>We crossed female SAFB1<sup>+/- </sup>(C57B6/129) mice with male MMTV-Wnt-1 (C57B6/SJL) mice to obtain SAFB1<sup>+/+</sup>/Wnt-1, SAFB1<sup>+/-</sup>/Wnt-1, and SAFB1<sup>+/- </sup>mice. For the chemical induced tumorigenesis study we treated 8 weeks old SAFB1<sup>+/- </sup>and SAFB<sup>+/+ </sup>BALB/c mice with 1 mg DMBA once per week for 6 weeks. Animals were monitored for tumor incidence and tumor growth. Tumors were characterized by performing H&E, and by staining for markers of proliferation and apoptosis.</p> <p>Results</p> <p>We did not detect significant differences in tumor incidence and growth between SAFB1<sup>+/+</sup>/Wnt-1 and SAFB1<sup>+/-</sup>/Wnt-1 mice, and between DMBA-treated SAFB1<sup>+/+ </sup>and SAFB1<sup>+/-</sup>mice. Histological evaluation of tumors showed that SAFB1 heterozygosity did not lead to changes in proliferation or apoptosis. There were, however, significant differences in the distribution of tumor histologies with an increase in papillary and cribriform tumors, and a decrease in squamous tumors in the SAFB1<sup>+/-</sup>/Wnt-1 compared to the SAFB1<sup>+/+</sup>/Wnt-1 tumors. Of note, DMBA treatment resulted in shortened survival of SAFB1<sup>+/- </sup>mice compared to their wildtype littermates, however this trend did not reach statistical significance.</p> <p>Conclusion</p> <p>Our data show that SAFB1 heterozygosity does not influence Wnt-1 or DMBA-induced mammary tumorigenesis.</p
Integration of robotic surgery into routine practice and impacts on communication, collaboration, and decision making: A realist process evaluation protocol
Background: Robotic surgery offers many potential benefits for patients. While an increasing number of healthcare providers are purchasing surgical robots, there are reports that the technology is failing to be introduced into routine practice. Additionally, in robotic surgery, the surgeon is physically separated from the patient and the rest of the team, with the potential to negatively impact teamwork in the operating theatre. The aim of this study is to ascertain: how and under what circumstances robotic surgery is effectively introduced into routine practice; and how and under what circumstances robotic surgery impacts teamwork, communication and decision making, and subsequent patient outcomes. Methods and design: We will undertake a process evaluation alongside a randomised controlled trial comparing laparoscopic and robotic surgery for the curative treatment of rectal cancer. Realist evaluation provides an overall framework for the study. The study will be in three phases. In Phase I, grey literature will be reviewed to identify stakeholders' theories concerning how robotic surgery becomes embedded into surgical practice and its impacts. These theories will be refined and added to through interviews conducted across English hospitals that are using robotic surgery for rectal cancer resection with staff at different levels of the organisation, along with a review of documentation associated with the introduction of robotic surgery. In Phase II, a multi-site case study will be conducted across four English hospitals to test and refine the candidate theories. Data will be collected using multiple methods: the structured observation tool OTAS (Observational Teamwork Assessment for Surgery); video recordings of operations; ethnographic observation; and interviews. In Phase III, interviews will be conducted at the four case sites with staff representing a range of surgical disciplines, to assess the extent to which the results of Phase II are generalisable and to refine the resulting theories to reflect the experience of a broader range of surgical disciplines. The study will provide (i) guidance to healthcare organisations on factors likely to facilitate successful implementation and integration of robotic surgery, and (ii) guidance on how to ensure effective communication and teamwork when undertaking robotic surgery
Disrupting Circadian Homeostasis of Sympathetic Signaling Promotes Tumor Development in Mice
and why disruption of circadian rhythm may lead to tumorigenesis. oncogenic potential, leading to tumor development in the same organ systems in wild-type and circadian gene-mutant mice. is a clock-controlled physiological function. The central circadian clock paces extracellular mitogenic signals that drive peripheral clock-controlled expression of key cell cycle and tumor suppressor genes to generate a circadian rhythm in cell proliferation. Frequent disruption of circadian rhythm is an important tumor promoting factor
Impact of Optimized Breastfeeding on the Costs of Necrotizing Enterocolitis in Extremely Low Birthweight Infants
To estimate risk of NEC for ELBW infants as a function of preterm formula and maternal milk (MM) intake and calculate the impact of suboptimal feeding on NEC incidence and costs
Robotic surgery: disruptive innovation or unfulfilled promise? A systematic review and meta-analysis of the first 30 years
Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries
Abstract
Background
Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres.
Methods
This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries.
Results
In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia.
Conclusion
This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries
Preliminary development of a technique for on-line identification of AC power apparatus
Bibliography: p. 129-131
Conformally Invariant Metrics and the Geometry of Uniform Domains (Distance, Harnack).
This thesis is a study of the Harnack pseudo-distance and of uniform domains. It also investigates various conformally invariant metrics and pseudo-distances in the plane, all of which agree with the hyperbolic, or Poincare, distance in any simply connected domain, but in general disagree in non-simply connected domains. First we give the basic tools which we later use. We prove an inequality involving the moduli of related curve families, and we use this to prove a result concerning the extension of quasiconformal homeomorphisms of ring domains. We also discuss various metrics and distance functions, and we prove some basic propositions concerning these. Then we study the Harnack pseudo-distance in subdomains of (//R)('n). We find the Harnack metric-density, and using this we give a sharp upper bound for the Harnack distance in terms of the quasihyperbolic distance. We then examine the effect of removing a polar set from the domain. Finally, we relate the Harnack distance to the Poisson kernel, and using this we study the Harnack distance in an annulus and we derive a formula for the distance between two antipodal points on the circle of symmetry. Next we examine the relationships between all our distance functions. In particular we describe a scheme due to Ahlfors and Beurling which uniformizes the discussion of our conformally invariant metrics and distances. We sharpen some known results, and we also show the non-existence of certain other relations. Then we consider uniform domains, primarily in the plane. We give several geometric conditions which the components of the complement of a uniform domain must satisfy. Of particular interest are such conditions which ensure that the domain be uniform. As a byproduct of this study, we give such conditions for quasicircle domains which ensure the existence of a quasiconformal homeomorphism of the entire plane which maps the given domain onto a circle domain. Finally, for the special case of domains all of whose boundary points lie on a line, we are able to characterize uniform domains in terms of the hyperbolic distance in the domain.Ph.D.MathematicsUniversity of Michiganhttp://deepblue.lib.umich.edu/bitstream/2027.42/160144/1/8422248.pd
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