13,722 research outputs found
One-dimensional compounds—I Iodine oxidation of bis(orthophenylenediimine) complexes of nickel(II)
No full textOne-dimensional compounds—II. Halogen oxidation of the planar macrocyclic Ni(II) complex, Ni(C18H14N4)[1]
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Ensemble representations reveal distinct neural coding of visual working memory
Get PDF© 2019, The Author(s).We characterized the population-level neural coding of ensemble representations in visual working memory from human electroencephalography. Ensemble representations provide a unique opportunity to investigate structured representations of working memory because the visual system encodes high-order summary statistics as well as noisy sensory inputs in a hierarchical manner. Here, we consistently observe stable coding of simple features as well as the ensemble mean in frontocentral electrodes, which even correlated with behavioral indices of the ensemble across individuals. In occipitoparietal electrodes, however, we find that remembered features are dynamically coded over time, whereas neural coding of the ensemble mean is absent in the old/new judgment task. In contrast, both dynamic and stable coding are found in the continuous estimation task. Our findings suggest that the prefrontal cortex holds behaviorally relevant abstract representations while visual representations in posterior and visual areas are modulated by the task demands.11Nsciescopu
Being Chiang Yee: Feeling difference and storytelling
Get PDFChiang Yee was a Chinese writer, poet and painter who lived in England during the 1930s and 1940s. In his writing and drawings, there are many observations on the attention that his Chinese appearance provoked, all enabling him to tell stories about both Chinese and English cultures. The autobiographical persona of Silent Traveller, created by Chiang Yee in his writing, steered clear of controversial remarks, although he had strong feelings about Chinese politics, racism, and how Chinese people were regarded in Britain and America. This chapter explores how emotions, whether difficult or joyous, do not fit smoothly into linear narratives, and make personal memory an unreliable witness to history. Historians also may have a personal and emotional interest in the subjects they study. Indeed, I cannot think about Chiang Yee without resonances of my own family history, and experiences of being or embodying something of the Chinese in Britain. In a new analysis of The Silent Traveller in London (1945) and The Silent Traveller in Oxford (1946), the chapter explores what happens if we deepen rather than deny the historian’s role as storyteller, and pay closer attention to the differences and overlaps between Chiang Yee the author and Chiang Yee the Silent Traveller. Embracing the fragmented, the personal, the emotional, and the miss-remembered reveals a series of moments that speak about a Chinese physical presence in Oxford and London. These bring us closer to what it felt like to be a Chinese man in England during the 1940s, between the stories that were silenced and the things that could be said
Author Correction: Human fingerprint in global weather
No full textIn the version of this News & Views originally published, the ref. 5 author surnames Meihnausen, Fisher and Szekely were spelled incorrectly; they should have been spelled Meinshausen, Fischer and Székely, respectively. This has now been corrected. © 2020, Springer Nature Limited.11Nsciessciscopu
Student Expectations in the New Millennium
No full textHigher education has experienced vast changes as a result of global political and economic developments. Cultural and social changes in the last decade have also added to the continuing evolution of higher education. These changes inevitably lead to changing expectations of students entering higher education. An adequate understanding of student expectations is crucial in ensuring a good fit between higher educational institutions and their students. This study attempts to carry out a baseline descriptive-quantitative research on student expectations in the higher education of Hong Kong. Four scales have been developed to measure students’ attitude toward: 1. job-oriented curriculum design, 2. user-friendly course delivery method, 3. opportunities for lifelong learning, and 4. student consumerism. Students’ priority of what makes a good university, their reasons for going to university, and their self-perception of ability to cope with university life are also explored. The Student Expectations Questionnaire (developed by the author) was used to gather data from 857 first-year undergrads from nine institutions of higher education in Hong Kong. Analyses include, among others, gender, age, major of study as well as institution comparisons
Xin li ji jiu yu wei ji shi jian he zai nan zhong zuo wei gong gong wei sheng zai nan ying dui zhun bei de ce lüe
No full textCheung, Yee Lai.Thesis Ph.D. Chinese University of Hong Kong 2014.Includes bibliographical references (leaves 193-207).Abstracts and some appendixes also in Chinese.Title from PDF title page (viewed on 02, December, 2016).Cheung, Yee Lai
Population entropies estimates of proteins
Get PDFThe Shannon entropy equation provides a way to estimate variability of amino acids sequences in a multiple sequence alignment of proteins. Knowledge of protein variability is useful in many areas such as vaccine design, identification of antibody binding sites, and exploration of protein 3D structural properties. In cases where the population entropies of a protein are of interest but only a small sample size can be obtained, a method based on linear regression and random subsampling can be used to estimate the population entropy. This method is useful for comparisons of entropies where the actual sequence counts differ and thus, correction for alignment size bias is needed. In the current work, an R based package named EntropyCorrect that enables estimation of population entropy is presented and an empirical study on how well this new algorithm performs on simulated dataset of various combinations of population and sample sizes is discussed. The package is available at https://github.com/lloydlow/EntropyCorrectWai Yee Lo
ABSTRACT Search Engine Driven Author Disambiguation
No full textIn scholarly digital libraries, author disambiguation is an important task that attributes a scholarly work with specific authors. This is critical when individuals share the same name. We present an approach to this task that analyzes the results of automatically-crafted web searches. A key observation is that pages from rare web sites are stronger source of evidence than pages from common web sites, which we model as Inverse Host Frequency (IHF). Our system is able to achieve an average accuracy of 0.836
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