1,688 research outputs found
Vestibular responses to sinusoidal angular acceleration stimuli with superimposed offset velocities
Human vestibular responses to sinusoidal angular acceleration stimuli with superimposed offset velocitie
Instrumentation for measurement of vestibular-significant forces in helicopters
Accelerometer for airborne measurements of vestibular forces acting on helicopter pilot
Directional differences in visual acuity during vertical nystagmus
Directional differences in visual acuity during vertical nystagmu
A Torque Motor Servorotator for Vestibular Application
Torque motor servorotator for vestibular applicatio
Kinematics nomenclature for physiological accelerations with special reference to vestibular applications
Kinematics nomenclature for physiological accelerations and special reference to vestibular apparatu
Elicitation of horizontal nystagmus by periodic linear acceleration
Horizontal nystagmus elicitation in man by periodic linear acceleratio
A head restraint device for vestibular studies
Head restraint device based on vacuum bladder technique for use in vestibular studie
Unification of surface tension isotherms of PFOA or GenX salts in electrolyte solutions by mean ionic activity
The surface tension isotherms of soluble salts of per- and polyfluoroalkyl substances (PFAS) in electrolyte solutions are typically reported as functions of the PFAS concentration. However, for univalent salts and electrolytes, the Langmuir-Szyszkowski equation is a function of the mean ionic activity a*. Using previously reported data, we show that for salts of perfluorooctanoic acid (PFOA) or hexafluoropropylene oxide dimer acid (GenX™), use of a* rather than concentration provides a unified surface tension isotherm, independent of the electrolyte concentration. This suggests that the electrolyte dependence of the isotherm arises purely from its effect on PFAS activity, rather than an intrinsic surface property. This finding has important implications for the understanding of PFAS retention in saline unsaturated soils, and for PFAS extraction from saline waters by foam fractionation
Predictors of UK postgraduate researcher attendance behaviours and mental health-related attrition intention.
High rates of postgraduate researchers (PGRs) terminate their studies early. This attrition can have detrimental personal consequences, and results in a loss of productivity, and research and innovation for the higher education sector and society as a whole. PGRs are vulnerable to the experience of mental health problems; a factor that appears to be increasing attrition amongst students in the UK. However, investigation of the determinants of problems with PGRs' attendance and influencing intention to discontinue their studies is rare. Here, we consider the relative predictive validity of a set of putative predictors (mental health symptoms, demographic, occupational, psychological, social, and relational) of attendance behaviours (absenteeism, presenteeism, mental health-related intermission) and early attrition intention amongst UK PGRs. Depression, anxiety, and suicidality predicted attendance behaviours and greater attrition intention. Individual demographic and occupational factors predicted all outcomes. Psychological, social and relational factors had less predictive validity, although individual variables in these conceptual clusters did significantly predict some outcomes. Our results suggest that interventions to reduce high rates of mental health problems are likely to improve attendance behaviours, and reduce the extent to which PGRs intermit or consider ending their PhD studies for mental health-related reasons. Initiatives designed to improve supervisory relationships and reduce loneliness may also reduce absenteeism, intermission and attrition intention. [Abstract copyright: © The Author(s) 2022.
Visual illusions of movement
Visual illusions related to involuntary eye movemen
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