Syllables and phonemes as planning units in Mandarin Chinese spoken word production:Evidence from ERPs

Speakers of different languages might rely on differential phonological units when planning spoken output. In the present experiment, we investigated the role of phonemes, as well as the relative time course of syllabic vs phonemic encoding, in Mandarin Chinese word production. A form preparation task was combined with encephalography (EEG). In Experiment 1, word-initial phonemic overlap was manipulated; in Experiment 2, overlap was either in terms of phonemes or of syllables. Priming in latencies was found for syllabic but not for phonemic overlap. Phonemic overlap modulated ERPs in a 230-300 ms time window (range across Experiment 1 and 2) whereas syllabic overlap was found in a 200-280 ms time window. These results show that both phonemes and syllables are important planning units for Chinese speakers, and the relatively similar time course of activation provides important constraints on psycholinguistic models of Chinese spoken production. (143 words

Modelling Changes To Survey Response Items Over Time In A Britain Financial Literacy Education Study

This study develops a general method for modeling changes in response to items relating to students perceptions of personal finance and financial products. The new method is illustrated to analyze data from a sample of 1,250 students aged 16-18 who participated in a financial capability education study in the UK. We demonstrate how a quantitative indicator of the changes in students' responses can be applied in various educational research projects, particularly as a measure of program effectiveness. Predictions are based on prior survey responses, which are taken as relevant historical information for a cohort of students. We find significant changes in the responses of students towards reported career choice following the Financial Literacy Education course at national colleges in the UK

Two-dimensional bimetal-embedded expanded phthalocyanine monolayers: a class of multifunctional materials with fascinating properties

The expanded phthalocyanine (EPc) single-layer sheets with double transition metals (labeled as TM2EPc, TM = Sc-Zn) are predicted to be a new class of two-dimensional (2D) metal-organic materials with a series of favorable functional properties by means of systematic first-principle calculations and molecular dynamics simulations. The strong coordination between metal and EPc substrate accounts for the excellent structural stability. Chemical bonding analysis has demonstrated the absence of TM-TM bonding. Each metal center is isolated, but connected to the organic framework by four 2c-2e TM-N {\sigma}-bonds to form an extended 2D network. Unexpectedly, it is found that the V2EPc is an antiferromagnetic metal with Dirac cone, while Cr2EPc exhibits ferromagnetic Dirac half-metallicity, which is not common in 2D materials. Excitingly, the ferromagnetic Cr2EPc and antiferromagnetic Mn2- and Fe2-EPc have high magnetic transition temperatures of 223, 217, and 325 K, respectively, which are crucial for the practical applications of spintronics. Cr2EPc can maintain the Dirac half-metallicity under -6 % ~ 2 % biaxial strains, and Fe2EPc can transform from semiconductor to half-metal by applying -6 % ~ -10 % compressive strains. Additionally, the TM2EPc monolayers exhibit a full response to visible light and some materials have strong absorption in the ultraviolet and infrared regions in addition to visible light, showing extraordinary solar light-harvesting ability. Notably, the designed type-II heterojunctions Fe2EPc/SnC, Co2EPc/GeS, and Ni2EPc/2H-WSe2 have high power conversion efficiency (PCE > 15%), especially the PCE of Ni2EPc/2H-WSe2 reaches 25.19%, which has great potential in solar cell applications. All these desired properties render 2D TM2EPc monolayers promising candidates for future applications in nanoelectronics, spintronics,optoelectronics, and photovoltaic devices