نتایج جستجو برای: accommodation lag
تعداد نتایج: 81236 فیلتر نتایج به سال:
PURPOSE The relative efficiency of different eye exercise regimes is unclear, and in particular the influences of practice, placebo and the amount of effort required are rarely considered. This study measured conventional clinical measures following different regimes in typical young adults. METHODS A total of 156 asymptomatic young adults were directed to carry out eye exercises three times ...
In this paper, a neural-network-based control scheme is developed for the tracking control problem of a class of switched strict-feedback nonlinear systems with uncertain input delay and external time-varying disturbances. First, the auxiliary signals are obtained by masterly constructing a filter and a virtual observer. Then the adaptive backstepping technique and neural network (NN) are emplo...
APPENDIX BIPHASIC RESPONSE AS A MECHANISM AGAINST MUTANT 4 TAKEOVER IN TISSUE HOMEOSTASIS CIRCUITS ............................................................. 1 5 Appendix Section S1. Modeling the growth rate of cells in tissue homeostasis circuits. .............. 2 6 Appendix Section S2. Modeling input delay in feedback homeostasis circuits. ............................ 4 7 Appendix Section ...
This study uses the Autoregressive Distributed Lag (ARDL) model to study the dynamic determinant factors that influence both long and short-term international tourism demand in Cambodia from 12 countries. The annual time series data (1994–2013) are used in this study. The study finds that only the international tourism demand model of Australia, Canada, Thailand, the United Kingdom, and USA are...
Previous models for ocular accommodation have suggested a dual sympathetic/parasympathetic innervation to the ciliary muscle. Such models would predict that sympathomimetic drugs should change the resting point or dark focus of accommodation. The effect of an alpha-adrenergic agonist (10% phenylephrine hydrochloride) on accommodation was examined; the results show a decrease in the near point o...
This paper investigates whether exports are the engine of production growth in forest industries in three countries. A bivariate autoregressive distributed lag model of production and exports was estimated with data of eleven forest industries from China, Finland, and the United States. Inferences were based on the short-run and long-run partial multipliers from exports to production by industr...
Aftereffects of accommodation and convergence demonstrate the adaptability of these two visual motor systems. These aftereffects were reduced after ramp tracking exercises of either accommodation or vergence, and this reduced aftereffect or fatigue was associated with an increase of accommodative vergence and vergence accommodation. When one motor system (accommodation or vergence) adapted more...
OBJECTIVE To describe a benign condition of transient, isolated accommodation paralysis in young patients as a specific entity. DESIGN Case series of children and young adults with transient loss of accommodation who were referred to the neuro-ophthalmology clinic at the Meir Medical Center from 1997 to 2006. Five young patients who complained of an inability to read had full neuro-ophthalmol...
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