206 research outputs found
Prey Detection and Feeding Success of the Comb Jellyfish Mnemiopsis leidyi on Copepods in still and turbulent waters
The comb jelly or ctenophore, Mnemiopsis leidyi, is a voracious predator in both its native and non-native habitats. Though M. leidyi inhabits coastal waters that are frequently turbulent, previous feeding studies have been conducted in still water tanks. This study aimed to research feeding behaviors in turbulent waters, which is more representative of the natural environment. Interactions between the free-swimming ctenophores and copepod prey, such as Acartia tonsa, were observed and recorded in a laboratory turbulence tank (n = 73). Turbulence was created using submersible speakers, and the interactions were recorded using a video camera. Capture efficiency denoted interactions containing direct contact between copepods and M. leidyi that led to eventual capture, frequently after multiple contacts. Overall copepod capture efficiency was similar in still (48%) and turbulent (43%) water, as were the overall prey retention rates for each (still = 58%; turbulent = 57%). However, M. leidyi exhibited anticipatory responses, defined as altering the position of feeding structures, nearly twice as often in still (41%) waters than in turbulent (20%) waters. The hydromechanical “noise” produced by background turbulence may inhibit the capacity of the ctenophore to detect and respond to fluid motions produced by its prey
Improving Dental Visits for Individuals with Autism Spectrum Disorders through an Understanding of Sensory Processing
The increasing prevalence of autism spectrum disorder (ASD) suggests that dental practices will be seeing patients with this diagnosis more frequently. Although patients with ASD have similar dental needs to other patients, the symptoms of the disorder may influence the ability of dental practitioners to provide necessary care. Dental professionals may be unaware of the difficulties with sensory processing common to patients with ASD. However, awareness of sensory processing issues and knowledge of strategies to improve the sensory experience for individuals with ASD may improve dental visits for these patients and allow for enhanced dental care provision
Braid Groups and Euclidean Simplices
In the early 2000s, Daan Krammer and Stephen Bigelow independently proved that braid groups are linear. They used the Lawrence-Krammer-Bigelow (LKB) representation for generic values of its variables q and t. The variable is related to the Garside structure of the braid group used in Krammer's algebraic proof. The q variable, associated with the dual Garside structureof the braid group, has received less attention.In this dissertation we give a geometric interpretation of the q portionof the LKB representation in terms of an action of the braid group onthe space of non-degenerate euclidean simplices. In ourinterpretation, braid group elements act by systematically reshaping(and relabeling) euclidean simplices. The reshapings associated tothe simple elements in the dual Garside structure of the braid groupare of an especially elementary type that we call relabeling andrescaling
Effect of Inhaled Corticosteroid Therapy Step-Down and Dosing Regimen on Measures of Asthma Control
Peer reviewedPublisher PD
Missing men with tuberculosis: the need to address structural influences and implement targeted and multidimensional interventions.
Tuberculosis (TB) is treatable but is the leading infectious cause of death worldwide, with men over-represented in some key aspects of the disease burden. Men's TB epidemiological scenario occurs within a wider public health and historical context, including their prior sidelining in health discussions. Differences are however noticeable in how some Western countries and high TB and HIV burden low and middle-income countries (LMIC) including in Africa have approached the subject(s) of men and health. The former have a comparatively long history of scholarship, and lately are implementing actions targeting men's health and wellness, both increasingly addressing multilevel social and structural determinants. In contrast, in the latter men have received attention primarily for their sexual practices and role in HIV and AIDS and gender-based violence; moreover, interventions, guided by the public health approach, have stressed short-term, measurable and medical goals. Debates and the limited available empirical literature on men's engagement with TB-related healthcare are nevertheless indicating need for a shift, within TB work with men in high burden LMICs towards, structural and multicomponent interventions
Effectiveness of inhaler types for real-world asthma management: retrospective observational study using the GPRD
How do frontline staff use patient experience data for service improvement? Findings from an ethnographic case study evaluation
Funding Information: The authors would like to thank the following: the ward teams and senior management teams at the six participating case study sites. Neil Churchill, Angela Coulter, Ray Fitzpatrick, Crispin Jenkinson, Trish Greenhalgh and Sian Rees who were co-investigators on the study, contributing to the original design and conduct of the study. Esther Ainley and Steve Sizmur from Picker Institute Europe, who contributed to data collection and analysis. Prof. John Gabbay and Prof. Andr? le May, University of Southampton, for facilitating the learning community meetings. The members of the lay advisory panel: Barbara Bass, Tina Lonhgurst, Georgina McMasters, Carol Munt, Gillian Richards, Tracey Richards, Gordon Sturmey, Karen Swaffield, Ann Tomlime and Paul Whitehouse. The external members of the Study Steering Committee: Joanna Foster, Tony Berendt, Caroline Shuldham, Joanna Goodrich, Leigh Kendall, Bernard Gudgin and Manoj Mistry. At the time of conducting the research LL and SP were employed by the University of Oxford. Preliminary findings from the study have been presented publicly at the following conferences: European Association for Communication in Healthcare 2016; The International Society for Quality in Healthcare 2017; Health Services Research UK 2017; Medical Sociology 2018. The views expressed are those of the authors and not necessarily those of the NHS, the NIHR or the Department of Health and Social Care. Publisher Copyright: © The Author(s) 2020. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.Peer reviewedPublisher PD
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