This article presents a hybrid boost converter architecture for improving the efficiency of light-emitting diode (LED) drivers used in mobile applications. By cascading low-switching frequency time-interleaved series–parallel switched-capacitor (SC)-stage with an inductive-boost converter, we facilitate lower voltage-rated switches, thus significantly reducing switching losses. Charge-sharing l...

As working memory (WM) is compromised with advancing age, older people may have performance deficits in WM tasks. This is probably due to a great number of WM operations which should be performed for extended periods of time. The reduction of a number of these operations was expected to reduce WM load and age-related deficits in WM performance. Fifty younger (29±3 years) and 49 older (55±3 year...

Flying phobia is a highly prevalent anxiety disorder, which causes sufferers significant distress and life interference. The processes which maintain flying phobia remain poorly understood. A systematic search of the literature was performed to identify what research has been conducted into the processes which may be involved in the fear of flying and whether processes which are believed to mai...

Background: The negative symptoms, including flattened affect, poverty of speech, avolition,

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Previous studies Influence of L1 categories is said to be less strong in early learners as compared to late learners: Less foreign accent, better production, better perception (1, 2); they are just like monolinguals (8) in some tasks. The influence of L1 might be more variable in early learners (3, 4) because in children, phonetic categories are still in formation (9). But it is sometimes still...