37 research outputs found
Recommended from our members
Cultural history of sound in England 1560-1760
Sounds both penetrate bodies and emanate from them, and in this thesis I
consider both the reception and deployment of sounds in a variety of social contexts
- an aural history of England between 1560 and 1760. I confine my analysis to
nonverbal and non-musical sounds which were made both deliberately and
incidentally, voluntarily and involuntarily, and ask, under what conditions were
sounds meaningful?
The concern of Chapter 2 is the sense of hearing - how and when it was
appreciated or confused, and how it could be sharpened, or dulled and deafened.
The experiences of the deaf are also discussed, with a distinction made between the
congenitally deaf, and those who became deaf after they had developed verbal
language skills.
The third chapter considers body sounds, such as belching, farting and (
sighing, and the factors :which influenced their suppression or enhancement. The
chapter explores in depth the various functions of laughing and crying, highlighting
differences in behaviour between different social and demographic groups.
Sound signals - sounds which warned that something was happening or
would happen - are the subject of the fourth chapter. The discussion commences
with an investigation of sounds which were thought to indicate future disasters, to
provide clues about health, or to forecast weather. However, the bulk of the
chapter is devoted to signals which were deliberately issued in the public realm in
order to convey information, warn of calamities, announce deaths, instruct and
gather communities, and mark temporal, social and spatial divisions. Chapter 5
extends this discussion by exploring the ways that secular and ecclesiastical
authorities tried to control the apparatus of signalling, and by considering both the
success of such attempts and the efficacy of sound signalling.
Aggressive sounds feature in Chapter 6. The manner in which aggression
was expressed depended on the status of the aggressor and the person towards
whom aggression was directed; inferiors were subjected to crude and harsh sounds,
while caution was required when projecting aggressive sounds at superiors.
Chapter 7 analyses early modern conceptions of noise - sounds which were
considered to be irritating. It explores the various contexts of noise, and shows how
'
people manipulated their environment to reduce noise disturbance, through legal
means and by altering buildings
Quo Vadis Architectura? 7. Mixing the Private and the Public in the City
In this book, experts from different fields discuss the changing boundaries between private and public city life, both from historical as well as contemporary perspectives. The publication is based on the 13th Quo Vadis Architectura? Nils Erik Wickberg Lectures, held at Aalto University in 2017. The seminar was organized by the chairs of History of Architecture, Housing and Urban and Regional Planning
Investigating the effect of independent blinded digital image assessment on the STOP GAP trial
Background
Blinding is the process of keeping treatment assignment hidden and is used to minimise the possibility of bias. Trials at high risk of bias have been shown to report larger treatment effects than low risk studies. In dermatology, one popular method of blinding is to have independent outcome assessors who are unaware of treatment allocation assessing the end point using digital photographs. However, this can be complex, expensive and time-consuming. The objective of this study was to compare the effect of blinded and unblinded outcome assessment on the results of the STOP GAP trial.
Methods
The STOP GAP trial compared prednisolone to ciclosporin in treating pyoderma gangrenosum. Participants’ lesions were measured at baseline and 6 weeks to calculate the primary outcome, speed of healing. Independent blinded assessors obtained measurements from digital photographs using specialist software. In addition, unblinded treating clinicians estimated lesion area by measuring length and width. The primary outcome was determined using blinded measurements where available, otherwise unblinded measurements were used (method referred to as trial measurements).
In this study, agreement between the trial and unblinded measurements was determined using the intraclass correlation coefficient (ICC). The STOP GAP primary analysis was repeated using unblinded measurements only. We introduced differential and non-differential error in unblinded measurements and investigated the effect on the STOP GAP primary analysis.
Results
86 (80%) of the 108 patients were assessed using digital images. Agreement between trial and unblinded measurements was excellent (ICC=0.92 at baseline; 0.83 at 6 weeks). There was no evidence that the results of the trial primary analysis differed according to how the primary outcome was assessed (p-value for homogeneity = 1.00).
Conclusions
Blinded digital image assessment in STOP GAP did not meaningfully alter trial conclusions compared with unblinded assessment. However, as the process brought added accuracy and credibility to the trial it was considered worthwhile.
These findings question the usefulness of digital image assessment in a trial with an objective outcome and where bias is not expected to be excessive. Further research should investigate if there are alternative, less complex ways of incorporating blinding in clinical trials
The Ser82 RAGE variant affects lung function and serum RAGE in smokers and sRAGE production in vitro
Introduction:
Genome-Wide Association Studies have identified associations between lung function measures and Chronic Obstructive Pulmonary Disease (COPD) and chromosome region 6p21 containing the gene for the Advanced Glycation End Product Receptor (AGER, encoding RAGE). We aimed to (i) characterise RAGE expression in the lung, (ii) identify AGER transcripts, (iii) ascertain if SNP rs2070600 (Gly82Ser C/T) is associated with lung function and serum sRAGE levels and (iv) identify whether the Gly82Ser variant is functionally important in altering sRAGE levels in an airway epithelial cell model.
Methods:
Immunohistochemistry was used to identify RAGE protein expression in 26 human tissues and qPCR was used to quantify AGER mRNA in lung cells. Gene expression array data was used to identify AGER expression during lung development in 38 fetal lung samples. RNA-Seq was used to identify AGER transcripts in lung cells. sRAGE levels were assessed in cells and patient serum by ELISA. BEAS2B-R1 cells were transfected to overexpress RAGE protein with either the Gly82 or Ser82 variant and sRAGE levels identified.
Results:
Immunohistochemical assessment of 6 adult lung samples identified high RAGE expression in the alveoli of healthy adults and individuals with COPD. AGER/RAGE expression increased across developmental stages in human fetal lung at both the mRNA (38 samples) and protein levels (20 samples). Extensive AGER splicing was identified. The rs2070600T (Ser82) allele is associated with higher FEV1, FEV1/FVC and lower serum sRAGE levels in UK smokers. Using an airway epithelium model overexpressing the Gly82 or Ser82 variants we found that HMGB1 activation of the RAGE-Ser82 receptor results in lower sRAGE production.
Conclusions:
This study provides new information regarding the expression profile and potential role of RAGE in the human lung and shows a functional role of the Gly82Ser variant. These findings advance our understanding of the potential mechanisms underlying COPD particularly for carriers of this AGER polymorphism
Medial longitudinal arch development of school children : The College of Podiatry Annual Conference 2015: meeting abstracts
Background Foot structure is often classified into flat foot, neutral and high arch type based on the variability of the Medial Longitudinal Arch (MLA). To date, the literature provided contrasting evidence on the age when MLA development stabilises in children. The influence of footwear on MLA development is also unknown. Aim This study aims to (i) clarify whether the MLA is still changing in children from age 7 to 9 years old and (ii) explore the relationship between footwear usage and MLA development, using a longitudinal approach. Methods We evaluated the MLA of 111 healthy school children [age = 6.9 (0.3) years] using three parameters [arch index (AI), midfoot peak pressure (PP) and maximum force (MF: % of body weight)] extracted from dynamic foot loading measurements at baseline, 10-month and 22-month follow-up. Information on the type of footwear worn was collected using survey question. Linear mixed modelling was used to test for differences in the MLA over time. Results Insignificant changes in all MLA parameters were observed over time [AI: P = .15; PP: P = .84; MF: P = .91]. When gender was considered, the AI of boys decreased with age [P = .02]. Boys also displayed a flatter MLA than girls at age 6.9 years [AI: mean difference = 0.02 (0.01, 0.04); P = .02]. At baseline, subjects who wore close-toe shoes displayed the lowest MLA overall [AI/PP/MF: P < .05]. Subjects who used slippers when commencing footwear use experienced higher PP than those who wore sandals [mean difference = 31.60 (1.44, 61.75) kPa; post-hoc P = .04]. Discussion and conclusion Our findings suggested that the MLA of children remained stable from 7 to 9 years old, while gender and the type of footwear worn during childhood may influence MLA development. Clinicians may choose to commence therapy when a child presents with painful flexible flat foot at age 7 years, and may discourage younger children from wearing slippers when they commence using footwear
Effect of remote ischaemic conditioning on clinical outcomes in patients with acute myocardial infarction (CONDI-2/ERIC-PPCI): a single-blind randomised controlled trial.
BACKGROUND: Remote ischaemic conditioning with transient ischaemia and reperfusion applied to the arm has been shown to reduce myocardial infarct size in patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PPCI). We investigated whether remote ischaemic conditioning could reduce the incidence of cardiac death and hospitalisation for heart failure at 12 months. METHODS: We did an international investigator-initiated, prospective, single-blind, randomised controlled trial (CONDI-2/ERIC-PPCI) at 33 centres across the UK, Denmark, Spain, and Serbia. Patients (age >18 years) with suspected STEMI and who were eligible for PPCI were randomly allocated (1:1, stratified by centre with a permuted block method) to receive standard treatment (including a sham simulated remote ischaemic conditioning intervention at UK sites only) or remote ischaemic conditioning treatment (intermittent ischaemia and reperfusion applied to the arm through four cycles of 5-min inflation and 5-min deflation of an automated cuff device) before PPCI. Investigators responsible for data collection and outcome assessment were masked to treatment allocation. The primary combined endpoint was cardiac death or hospitalisation for heart failure at 12 months in the intention-to-treat population. This trial is registered with ClinicalTrials.gov (NCT02342522) and is completed. FINDINGS: Between Nov 6, 2013, and March 31, 2018, 5401 patients were randomly allocated to either the control group (n=2701) or the remote ischaemic conditioning group (n=2700). After exclusion of patients upon hospital arrival or loss to follow-up, 2569 patients in the control group and 2546 in the intervention group were included in the intention-to-treat analysis. At 12 months post-PPCI, the Kaplan-Meier-estimated frequencies of cardiac death or hospitalisation for heart failure (the primary endpoint) were 220 (8·6%) patients in the control group and 239 (9·4%) in the remote ischaemic conditioning group (hazard ratio 1·10 [95% CI 0·91-1·32], p=0·32 for intervention versus control). No important unexpected adverse events or side effects of remote ischaemic conditioning were observed. INTERPRETATION: Remote ischaemic conditioning does not improve clinical outcomes (cardiac death or hospitalisation for heart failure) at 12 months in patients with STEMI undergoing PPCI. FUNDING: British Heart Foundation, University College London Hospitals/University College London Biomedical Research Centre, Danish Innovation Foundation, Novo Nordisk Foundation, TrygFonden
Experiences of the deaf in early modern England
Some recent studies have highlighted the importance of sounds for social interaction in the early modern period, yet the consequences for deaf members of society are rarely questioned. Those without the ability to hear lived in a world of sounds controlled by those who heard. This article explores the extent to which the deaf were socially integrated in English society between the mid-sixteenth and mid-eighteenth centuries. It also assesses the disadvantages suffered by those born deaf, or who lost their hearing. Crucial to the discussion is an understanding that experiences were not uniform, as the term deafness covered a wide spectrum of conditions, from temporary hearing loss to profound congenital deafness. Clearly some were more disabled than others, but their disadvantages were more to do with traditional social divisions of wealth and status, rather than the extent of their hearing impairment. Fundamentally, the most inhibiting factor was an inability to apprehend words
You've Got Mail:Anonymity can be a powerful shield
Article about anonymous letters, focused on the Annie Tugwell case, 1909-191
Dead Sleep True Crime for Bedtime:"Penning Poison" w/author Dr Emily Cockayne
Dead Sleep True Crime for Bedtime, "Penning Poison" w/author Dr Emily Cockayn