14 research outputs found
Replication Data for: Wide lag time distributions break a trade-off between reproduction and survival in bacteria
Code and text file with parameter values to replicate simulations presented in Figure 6 of the paper. The code produces two files per replicate with the values of the traits u and v in the population over evolutionary time. The parameters can be adjusted in the text file and are: K = carrying capacity; n0= initial size of the population at the start of a growth cycle; doubrate= doubling rate; u0= initial value of u for all individuals in the population; v0= initial value of v for all individuals in the population; u= mutation rate; mutsize= size of a mutational step; numrep= number of evolutionary replicates to run; numcycles = number of growth cycles per replicate (the default is to run each simulation until >95% of the individuals have u=0 but the simulations can also be run for a fixed number of growth cycles per replicate which is set by this parameter. To use this option go to lines 71-72 of the code and change accordingly)
Low validity of Google Trends for behavioral forecasting of national suicide rates
Recent research suggests that search volumes of the most popular search engine worldwide, Google, provided via Google Trends, could be associated with national suicide rates in the USA, UK, and some Asian countries. However, search volumes have mostly been studied in an ad hoc fashion, without controls for spurious associations. This study evaluated the validity and utility of Google Trends search volumes for behavioral forecasting of suicide rates in the USA, Germany, Austria, and Switzerland. Suicide-related search terms were systematically collected and respective Google Trends search volumes evaluated for availability. Time spans covered 2004 to 2010 (USA, Switzerland) and 2004 to 2012 (Germany, Austria). Temporal associations of search volumes and suicide rates were investigated with time-series analyses that rigorously controlled for spurious associations. The number and reliability of analyzable search volume data increased with country size. Search volumes showed various temporal associations with suicide rates. However, associations differed both across and within countries and mostly followed no discernable patterns. The total number of significant associations roughly matched the number of expected Type I errors. These results suggest that the validity of Google Trends search volumes for behavioral forecasting of national suicide rates is low. The utility and validity of search volumes for the forecasting of suicide rates depend on two key assumptions (âthe population that conducts searches consists mostly of individuals with suicidal ideationâ, âsuicide-related search behavior is strongly linked with suicidal behaviorâ). We discuss strands of evidence that these two assumptions are likely not met. Implications for future research with Google Trends in the context of suicide research are also discussed.© 2017 Tran et al
Factors associated with self-reported pain and hand function following dorsal wrist ganglion excision
This study aimed to analyse which factors contribute to pain and limited hand function after dorsal wrist ganglion excision. We included 308 patients who underwent surgery between September 2017 and August 2021. Patients completed baseline questionnaires and the patient-rated wrist/hand evaluation questionnaire at baseline and 3 months postoperatively. We observed an improvement in postoperative pain and hand function, but individual outcomes were highly variable. We performed stepwise linear regression analyses to examine which patient characteristics, disease characteristics and psychological factors were associated with postoperative pain and hand function. Higher postoperative pain intensity was associated with recurrence following previous surgery, treatment of the dominant hand, higher baseline pain intensity, lower credibility the patient attributes to the treatment and longer symptom duration. Worse hand function was associated with recurrence following prior surgery, worse baseline hand function and lower treatment credibility. Clinicians should take these findings into account during patient counselling and expectation management.Level of evidence: I
Supplementary Material for: Left Atrial Remodeling and Cerebrovascular Disease Assessed by Magnetic Resonance Imaging in Continuously Monitored Patients
Background: Atrial remodeling is associated with future atrial fibrillation (AF) and stroke. AF has been associated with cognitive impairment and cerebral white matter lesions. We wished to investigate the possible direct association between atrial remodeling and cerebrovascular disease in patients with and without AF documented by implantable loop recorder (ILR). Methods: Cardiac and cerebral magnetic resonance imaging were acquired in a cross-sectional study, including participants â„70 years of age with stroke risk factors without known AF. Cerebrovascular disease was visually rated using the Fazekas scale and number of lacunar strokes. Left atrial (LA) and ventricular volumes and function were analyzed. Associations between atrial remodeling and cerebrovascular disease were assessed with logistic regression models. The analyses were stratified according to sinus rhythm or any AF during 3 months of continuous ILR monitoring to account for subclinical AF. Results: Of 200 participants investigated, 87% had a Fazekas score â„1 and 45% had â„1 lacunar infarct. Within 3 months of ILR monitoring, AF was detected in 28 (14%) participants. For participants with sinus rhythm (n = 172), lower LA passive emptying fraction was associated with Fazekas score after multivariable adjustment (OR [95% CI]: 0.51 [0.27; 0.86] p = 0.02), and increased LA maximum (OR [95% CI]: 1.38 [1.07; 1.82] p = 0.01) and minimum volumes (OR [95% CI]: 1.48 [1.03; 2.17] p = 0.04) were associated with lacunar infarcts. There were no significant associations in patients with AF. Conclusion: In AF-free patients, as documented by ILR monitoring, we found an independent association between LA passive emptying fraction and Fazekas score and between atrial volumes and lacunar infarcts
Additional file 6 of Whole-genome sequence-informed MALDI-TOF MS diagnostics reveal importance of Klebsiella oxytoca group in invasive infections: a retrospective clinical study
Additional file 6: Table S4. Reproducibility of detection for the predicted ribosomal subunits in MALDI-TOF mass spectra acquired in 4 different centers
Additional file 4 of Whole-genome sequence-informed MALDI-TOF MS diagnostics reveal importance of Klebsiella oxytoca group in invasive infections: a retrospective clinical study
Additional file 4: Table S2. Cellular fatty acid composition of 11 Klebsiella spp. strains
Inter-observer variability in target delineation increases during adaptive treatment of head-and-neck and lung cancer
Introduction: Inter-observer variability (IOV) in target volume delineation is a well-documented source of geometric uncertainty in radiotherapy. Such variability has not yet been explored in the context of adaptive re-delineation based on imaging data acquired during treatment. We compared IOV in the pre- and mid-treatment setting using expert primary gross tumour volume (GTV) and clinical target volume (CTV) delineations in locoregionally advanced head-and-neck squamous cell carcinoma (HNSCC) and (non-)small cell lung cancer [(N)SCLC]. Material and methods: Five and six observers participated in the HNSCC and (N)SCLC arm, respectively, and provided delineations for five cases each. Imaging data consisted of CT studies partly complemented by FDG-PET and was provided in two separate phases for pre- and mid-treatment. Global delineation compatibility was assessed with a volume overlap metric (the Generalised Conformity Index), while local extremes of IOV were identified through the standard deviation of surface distances from observer delineations to a median consensus delineation. Details of delineation procedures, in particular, GTV to CTV expansion and adaptation strategies, were collected through a questionnaire. Results: Volume overlap analysis revealed a worsening of IOV in all but one case per disease site, which failed to reach significance in this small sample (p-value range .063â.125). Changes in agreement were propagated from GTV to CTV delineations, but correlation could not be formally demonstrated. Surface distance based analysis identified longitudinal target extent as a pervasive source of disagreement for HNSCC. High variability in (N)SCLC was often associated with tumours abutting consolidated lung tissue or potentially invading the mediastinum. Adaptation practices were variable between observers with fewer than half stating that they consistently adapted pre-treatment delineations during treatment. Conclusion: IOV in target volume delineation increases during treatment, where a disparity in institutional adaptation practices adds to the conventional causes of IOV. Consensus guidelines are urgently needed
Additional file 4 of Worldwide clinical practices in perioperative antibiotic therapy for lung transplantation
Additional file 4. Answers to Case 2
Additional file 1 of Colorectal cancer incidences in Lynch syndrome: a comparison of results from the prospective lynch syndrome database and the international mismatch repair consortium
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Additional file 1 of Colorectal cancer incidences in Lynch syndrome: a comparison of results from the prospective lynch syndrome database and the international mismatch repair consortium
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