نتایج جستجو برای: lag effect
تعداد نتایج: 1658504 فیلتر نتایج به سال:
Spatial alignment of different face halves results in a configuration that mars the recognition of the identity of either face half (). What would happen to the recognition performance for face halves that were aligned on the retina but were perceived as misaligned, or were misaligned on the retina but were perceived as aligned? We used the 'flash-lag' effect () to address these questions. We c...
Real-time tumor tracking in external radiotherapy can be achieved by diagnostic (kV) X-ray imaging with a dynamic flat-panel detector (FPD). The purpose of this study was to address image lag in target tracking and its influence on the accuracy of tumor tracking. Fluoroscopic images were obtained using a direct type of dynamic FPD. Image lag properties were measured without test devices accordi...
LAG-3 has been shown to act as an inhibitory molecule involved in the regulation of T cell activation, proliferation and homeostasis. Exhausted T cell populations that evolve in the tumor microenvironment or during chronic viral infections show coordinated expression of LAG-3 and PD1. LAG-3 is structurally related to CD4 and binds to MHCII. Anti-LAG-3 antibodies have demonstrated preclinical ef...
The repetition effect on reaction time to words and unfamiliar faces was examined at lags of 0, 4, and 15 items between first and second presentations. For words, subjects made either a lexical decision or a decision based on the stimulus's structural attributes. In the lexical decision task, a significant repetition effect was found at all three lags for words, whereas for nonwords the effect ...
Lymphocyte activation gene-3 (LAG-3) is a cell-surface molecule with diverse biologic effects on T cell function. We recently showed that LAG-3 signaling is important in CD4+ regulatory T cell suppression of autoimmune responses. Here, we demonstrate that LAG-3 maintains tolerance to self and tumor antigens via direct effects on CD8+ T cells using 2 murine systems. Naive CD8+ T cells express lo...
Several models have been proposed to account for the flash-lag effect. One criterion for evaluating alternative models is to consider the separate effects of motion predictability and flash predictability. We first established that flash predictability has an impact on the size of the perceived spatial offset in the flash-lag illusion. We then examined motion predictability by varying the consi...
OBJECTIVE To quantify the lagged effects of mean temperature on deaths from cardiovascular diseases in Brisbane, Australia. DESIGN Polynomial distributed lag models were used to assess the percentage increase in mortality up to 30 days associated with an increase (or decrease) of 1°C above (or below) the threshold temperature. SETTING Brisbane, Australia. PATIENTS 22 805 cardiovascular de...
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...
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