162 research outputs found

    Letter from Richard Bentley, London, England, to Frederick Locker-Lampson : autograph manuscript signed, 1890 January 8

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    Written in answer to a question about points of the first edition of Barham\u27s Ingoldsby Legendshttps://repository.wellesley.edu/autographletters/1283/thumbnail.jp

    Living with AMD treatment: Patient experiences of being treated with Ranibizumab (Lucentis) intravitreal injections

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    This study reports the results of a qualitative study of patient experiences of receiving treatment for wet age-related macular degeneration with ranibizumab (Lucentis)(R). Treatment involved monthly hospital visits for assessment and, where required, an intravitreal Lucentis injection. Qualitative narrative interviews were conducted with 22 patients, 18 of whom received treatment and were interviewed at two points during their treatment journey. Interviews allowed participants to reflect on their experiences of being assessed for and receiving this treatment. Overall, treated participants reported that while they had been apprehensive about treatment, the actual experience of it was far less unpleasant than they had expected. However, the data also revealed a number of issues surrounding the provision of information about treatment, as well as service delivery issues, which had considerable impact upon their experience

    A Social Approach to Voter Vengeance

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    We propose that, in electoral contexts, voters may experience a desire for vengeance, i.e., to "get even" with an entity, such as a political candidate, in response to a perceived wrongdoing. We draw on research from psychology and sociology to develop a theoretical framework for examining factors that may influence the extent to which voters exact revenge on political candidates with their voting behavior. Our experiments show that voters exact revenge on a perpetrator candidate. This process is mediated by damage to self-identity. We also show how making salient a shared affiliation with the perpetrator candidate can attenuate vengeful behavior

    Rapid evolution of virulence and drug resistance in the emerging zoonotic pathogen Streptococcus suis

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    Background: Streptococcus suis is a zoonotic pathogen that infects pigs and can occasionally cause serious infections in humans. S. suis infections occur sporadically in human Europe and North America, but a recent major outbreak has been described in China with high levels of mortality. The mechanisms of S. suis pathogenesis in humans and pigs are poorly understood. Methodology/Principal Findings: The sequencing of whole genomes of S. suis isolates provides opportunities to investigate the genetic basis of infection. Here we describe whole genome sequences of three S. suis strains from the same lineage: one from European pigs, and two from human cases from China and Vietnam. Comparative genomic analysis was used to investigate the variability of these strains. S. suis is phylogenetically distinct from other Streptococcus species for which genome sequences are currently available. Accordingly, ,40% of the ,2 Mb genome is unique in comparison to other Streptococcus species. Finer genomic comparisons within the species showed a high level of sequence conservation; virtually all of the genome is common to the S. suis strains. The only exceptions are three ,90 kb regions, present in the two isolates from humans, composed of integrative conjugative elements and transposons. Carried in these regions are coding sequences associated with drug resistance. In addition, small-scale sequence variation has generated pseudogenes in putative virulence and colonization factors. Conclusions/Significance: The genomic inventories of genetically related S. suis strains, isolated from distinct hosts and diseases, exhibit high levels of conservation. However, the genomes provide evidence that horizontal gene transfer has contributed to the evolution of drug resistance

    Influence of the incremental step size in work rate on exercise response and gas exchange in patients with pulmonary hypertension

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    <p>Abstract</p> <p>Background</p> <p>Cardiopulmonary exercise testing (CPET) has become increasingly important as a routine procedure in daily clinical work. So far, it is generally accepted that an individualized exercise protocol with exercise duration of 6 to 12 minutes is preferable to assess maximal exercise performance. The aim of this study was to compare an individualized NYHA adapted exercise protocol with a fixed standard protocol in patients with severe pulmonary arterial hypertension.</p> <p>Methods</p> <p>Twenty-two patients (17 female, 5 male; mean age 49 ± 14 yrs) underwent symptom limited CPET on a bicycle. On two consecutive days each subject performed a stepwise CPET according to a modified Jones protocol (16 Watt per minute stages) as well as an individualized NYHA adapted protocol with 5 or 10 Watt/min stages in a randomized order. Oxygen uptake at peak exercise (peakVO<sub>2</sub>) and anaerobic threshold (VO<sub>2</sub>AT), maximal ventilation (VE), breathing reserve (VE/MVV), ventilatory efficiency (VE vs. VCO<sub>2 </sub>slope), exercise time, maximal power and work rate were assessed and compared between both protocols.</p> <p>Results</p> <p>Comparing both, adapted NYHA protocol and standardized Jones protocol, we found significant differences in maximal power (56.7 ± 19 W vs. 74 ± 18 W; p < 0.001) and exercise time (332 ± 107 sec. vs. 248 ± 72 sec.; p < 0.001). In contrast, no significant differences were obvious comparing both protocols concerning work rate, VE, VE/MVV, peakVO<sub>2</sub>, VO<sub>2</sub>AT and VE vs. VCO<sub>2 </sub>slope.</p> <p>Conclusion</p> <p>Variations of incremental step size during CPET significantly affect exercise time and maximal power, whereas relevant parameters for clinical judgement and prognosis such as oxygen uptake, ventilation and ventilatory efficiency remain unchanged. These findings have practical implications for the exercise evaluation of patients with pulmonary hypertension. To reach maximal results for ventilation, oxygen uptake and gas exchange an individualization of incremental step size appears not to be mandatory.</p
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