A Wheeler graph represents a collection of strings in a way that is particularly easy to index and query. Such a graph is a practical choice for representing a graph-shaped pangenome, and it is the foundation for current graph-based pangenome indexes. However, there are no practical tools to visualize or to check graphs that may have the Wheeler properties.
View Article and Find Full Text PDFIEEE Trans Neural Netw Learn Syst
February 2022
Large-scale labeled training datasets have enabled deep neural networks to excel across a wide range of benchmark vision tasks. However, in many applications, it is prohibitively expensive and time-consuming to obtain large quantities of labeled data. To cope with limited labeled training data, many have attempted to directly apply models trained on a large-scale labeled source domain to another sparsely labeled or unlabeled target domain.
View Article and Find Full Text PDFBackground: Evidence suggests that administration of intravenous fluids impairs hemostasis. Thromboelastometry (TEM) may provide a more sensitive measure of the fluid effects on hemostasis than traditional coagulation tests.
Objective: The study aim was to determine if resuscitative fluid therapy affects hemostasis, as measured by TEM.
Introduction: Although patient safety has improved steadily, harm remains a substantial global challenge. Additionally, safety needs to be ensured not only in hospitals but also across the continuum of care. Better understanding of the complex cognitive factors influencing health care-related decisions and organizational cultures could lead to more rational approaches, and thereby to further improvement.
View Article and Find Full Text PDFJ Eval Clin Pract
December 2015
Background: The Users' Guides to the Medical Literature Manual has been a major influence on the teaching and practice of health care globally.
Methods: The 3rd edition of the multi-authored Manual was reviewed using the principles outlined in Evidence-based Medicine (EBM) texts. One 'clinical scenario' was selected for critical appraisal, as were several chapters; objectivity was enhanced by citing references to support opinions.
Introduction: Recently, some leaders of the evidence-based medicine (EBM) movement drew attention to the "unintended" negative consequences associated with EBM. The term 'cognitive biases plus' was introduced in part I to encompass cognitive biases, conflicts of interests, fallacies and certain behaviours.
Hypothesis: 'Cognitive biases plus' in those closely involved in creating and promoting the EBM paradigm are responsible for their (1) inability to anticipate and then recognize flaws in the tenets of EBM; (2) discounting alternative views; and (3) delaying reform.
Introduction: There is increasing concern about the unreliability of much of health care evidence, especially in its application to individuals.
Hypothesis: Cognitive biases, financial and non-financial conflicts of interest, and ethical violations (which, together with fallacies, we collectively refer to as 'cognitive biases plus') at the levels of individuals and organizations involved in health care undermine the evidence that informs person-centred care.
Methods: This study used qualitative review of the pertinent literature from basic, medical and social sciences, ethics, philosophy, law etc.
Can J Neurol Sci
July 2013
In Part 2, we discuss the challenges of keeping up with the 'literature,' evidence-based medicine (EBM) in emerging economies and the Neurosciences, and two recent approaches to classifying evidence. We conclude by summarizing information from Parts 1 and 2 which suggest the need to critically re-appraise core elements of the EBM paradigm: (1) the hierarchical ranking of evidence, (2) randomized controlled trials or systematic reviews as the gold standard for all clinical questions or situations, (3) the statistical tests that have become integral to the 'measurements' for analyzing evidence, and (4) re-incorporating a role for evidence from basic sciences and pathophysiology. An understanding of how cognitive processes influence clinical decisions is also necessary to improve evidence-based practice.
View Article and Find Full Text PDFCan J Neurol Sci
July 2013
The evidence-based medicine (EBM) paradigm, introduced in 1992, has had a major and positive impact on all aspects of health care. However, widespread use has also uncovered some limitations; these are discussed from the perspectives of two clinicians in this, the first of a two part narrative review. For example, there are credible reservations about the validity of hierarchical levels of evidence, a core element of the EBM paradigm.
View Article and Find Full Text PDFHeadache in children and adolescents represents a number of complex and multifaceted pain syndromes that can benefit from psychological intervention. There is good evidence for the efficacy of cognitive behavioral therapy, relaxation training, and biofeedback. The choice of intervention is influenced by patients' age, sex, family and cultural background, as well as the nature of stressors and comorbid psychiatric symptoms.
View Article and Find Full Text PDFChronic daily headache (CDH) may be primary or secondary. Secondary causes can be suspected through "red flags" in the history and examination. With a prevalence of at least 1% and several associations, primary CDH is a common, often complex, chronic pain syndrome in children and adolescents.
View Article and Find Full Text PDFThe causes of nontraumatic coma (NTC) vary by country, season and period of data collection. Infective diseases are among the major worldwide causes of NTC. Nonaccidental head injury must be in the differential diagnosis.
View Article and Find Full Text PDFThe recognition of epileptic seizures in newborns is challenging as neonates exhibit a variety of paroxysmal motor phenomena, some epileptic but others not. The distinction, frequently requiring video-EEG monitoring, is crucial for management. Causes are often multi-factorial, specific to country/region, and change over time.
View Article and Find Full Text PDFCan J Neurol Sci
November 2010
Chronic daily headache (CDH) is a multi-faceted, often complex pain syndrome in children and adolescents. Chronic daily headache may be primary or secondary. Chronic migraine and chronic tension-type are the most frequent subtypes.
View Article and Find Full Text PDFIn this commentary, the authors briefly discuss their views on some of the limitations in the current terminology and classification of chronic headache. Suggestions for consideration and further debate include the acceptance of chronic daily headache as the umbrella term for this group of headache disorders, a more consistent definition of 'chronic' and the use of a multi-axial classification approach.
View Article and Find Full Text PDF