1,752 research outputs found

    Realistic Face Animation for a Czech Talking Head

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    Suppression of the postoperative neutrophil leucocytosis following neoadjuvant chemoradiotherapy for rectal cancer and implications for surgical morbidity

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    Objective: The extent to which neoadjuvant chemoradio- therapy for rectal cancer influences postoperative morbid- ity is controversial. This study investigated whether this treatment suppresses the normal perioperative inflamma- tory response and explored the clinical implications. Method: Prospective databases were queried to identify 37 consecutive study patients undergoing definitive surgery following 5-FU ⁄ capecitabine-based chemoradio- therapy and 35 consecutive untreated control patients operated upon for rectal or rectosigmoid cancer. Preop- erative (< 10 days) and postoperative (< 24 h) neutrophil counts, along with morbidity data, were confirmed retrospectively. Univariate and multivariate analyses assessed the apparent effect of chemoradiotherapy on change in neutrophil count. The latter’s association with postoperative morbidity was then examined. Results: Sufficient data were available for 34 study and 27 control patients. Repeated-measures ANCOVA revealed significant differences between their periopera- tive neutrophil counts (P = 0.02). Of the other charac- teristics which differed between the groups, only age and tumour location were prognostically significant regarding perioperative change in neutrophil count. Accounting for relevant covariates, chemoradiotherapy was significantly associated with a suppressed perioper- ative neutrophil leucocytosis. Local postoperative com- plications affected 25 of 61 patients, who had lower perioperative neutrophil increases than their counter- parts (P = 0.016). Conclusion: Chemoradiotherapy appears to suppress the perioperative inflammatory response, thereby increasing susceptibility to local postoperative complications

    Hidden benefits and risks of partial protection for coral reef fisheries

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    Partially protected areas are now the dominant global form of spatial management aimed at preserving ecosystem integrity and managing human use. However, most evaluations of their efficacy use only a narrow set of conservation indicators that reflect a fraction of ways in which protection can succeed or fail. In this paper, we examine three case studies of partially protected coral reef fishery systems to evaluate benefits and risks of their use as a management tool. We use data from community-based management arrangements in three Pacific Island countries to demonstrate three vignettes of how partial protection can boost fisheries production, enhance the ease with which fishers catch their prey, and alter the composition of fisheries yields. These changes in fisheries productivity, catchability, and vulnerability under partial protection carry substantial benefits for fishers. However, they also carry significant risks for ecosystems and fisheries livelihoods unless adaptively managed so as to confer the short to medium term benefits in resource performance without risking longer term sustainability

    Replication factory activation can be decoupled from the replication timing program by modulating Cdk levels

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    In the metazoan replication timing program, clusters of replication origins located in different subchromosomal domains fire at different times during S phase. We have used Xenopus laevis egg extracts to drive an accelerated replication timing program in mammalian nuclei. Although replicative stress caused checkpoint-induced slowing of the timing program, inhibition of checkpoint kinases in an unperturbed S phase did not accelerate it. Lowering cyclin-dependent kinase (Cdk) activity slowed both replication rate and progression through the timing program, whereas raising Cdk activity increased them. Surprisingly, modest alteration of Cdk activity changed the amount of DNA synthesized during different stages of the timing program. This was associated with a change in the number of active replication factories, whereas the distribution of origins within active factories remained relatively normal. The ability of Cdks to differentially effect replication initiation, factory activation, and progression through the timing program provides new insights into the way that chromosomal DNA replication is organized during S phase

    "Find Out Exactly What to Think-Next!": Chris Morris, Brass Eye, and Journalistic Authority

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    This article discusses Chris Morris's fake news TV series Brass Eye (1997, 2001). It concentrates on the ways in which Brass Eye exposed and undermined not only the textual conventions of TV news and current affairs, but also the ways in which the program deployed those textual conventions to highlight and sabotage the cultural authority of public figures who appeared on it. The article first introduces Morris and Brass Eye, before identifying some of the key textual strategies of broadcast news that are satirized in the program, including its mode of address, its music, and its visuals and graphics. It then examines how the program's use of those strategies enables it to exercise the authority of broadcast news to expose the accessed voices of public figures within the show

    Variability in Infant Acute Pain Responding Meaningfully Obscured By Averaging Pain Responses

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    Given the inherent variability in pain responding, using an "average" pain score may pose serious threats to internal and external validity of current research findings. Using growth mixture modeling (GMM), the paper first examines if infants can be differentiated into stable groups based on their pain response patterns over a two-minute post-needle period. Secondary analyses, to specifically address the issue of averaging pain scores to represent a sample, qualitatively described clinically meaningful differences between pain scores of the discerned groups and the overall mean (irrespective of groups). Infants were part of Canadian longitudinal cohort naturalistically observed during their 2- , 4-, 6-, and/or 12-month immunization appointments (Ns = 458 to 574) at 3 pediatrician clinics between 2007 and 2012. At every age, GMM analyses discerned distinct groups of infants with significantly variable patterns of pain responding over the 2 minutes post-needle. Our secondary analyses suggested that the overall mean pain score immediately post-needle reflected most groups well at every age. However, for older infants (6 and 12 months, especially), the overall mean pain responses at 1 and 2 minutes post-needle significantly over or underestimated groups that contained 48% to 100% of the sample. These results combined highlight the significant variability of infant pain responding patterns between groups of infants and furthermore, calls into question the validity of using an overall mean in research with older infants during the regulatory phase post-needle
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