An automatic method for extracting significant phrases in scientific or technical documents

A new method is described to extract significant phrases in the title and the abstract of scientific or technical documents. The method is based upon a text structure analysis and uses a relatively small dictionary. The dictionary has been constructed based on the knowledge about concepts in the field of science or technology and some lexical knowledge, for significant phrases and their component items may be used in different meanings among the fields. A text analysis approach has been applied to select significant phrases as substantial and semantic information carriers of the contents of the abstract.The results of the experiment for five sets of documents have shown that the significant phrases are effectively extracted in all cases, and the number of them for every document and the processing time is fairly satisfactory. The information representation of the document, partly using the method, is discussed with relation to the construction of the document information retrieval system.     

A Meta-Analysis on Gender Differences in Mental Rotation Ability Measured by the Purdue Spatial Visualization Tests: Visualization of Rotations (PSVT:R)

This meta-analysis was conducted to estimate the magnitude of gender difference in three-dimensional (3-D) mental rotation ability and to investigate how factors related to test administration conditions play a role in varying gender difference effect sizes and threatening validity. Individuals’ 3-D mental rotation ability was measured by the Purdue Spatial Visualization Tests: Visualization of Rotations (PSVT:R). We integrated 70 effect sizes of gender differences in mental rotation ability measured by the PSVT:R which were obtained from 40 primary studies. The results indicated that male participants outperformed females on the test (Hedges’ g?=?0.57). The I ² statistic indicated 41.7 % of variation in effect sizes reflects real heterogeneity. The moderator analysis indicated that male superiority on spatial ability tasks measured by the PSVT:R is related to the implementation of time limits. The gender difference became larger when stringent time limits (equal or less than 30 s per item) were implemented.     

What measures justice? What justifies happiness? Emersonian moral perfectionism and the cultivation of political emotions

Abstract

This article will highlight the distinctive role of Cavell in renewing a dawn of American philosophy. Following Emerson’s remark, ‘the inmost in due time becomes the outmost’, Cavell develops his distinctive line of antifoundationalist thought. To show how unique and valuable Cavell’s endeavor to resuscitate Emerson’s and Thoreau’s voice in American philosophy is, this paper discusses the political implications of Cavell’s Emersonian moral perfectionism. This involves a reconsideration of what measures justice and what justifies happiness. While Cavell is sometimes said to be too personal and too subjective to be political, I shall argue that his Emersonian perfectionism, with its concomitant idea of the conversation of justice, is in fact thoroughly political and democratic. I shall illustrate this by examining his writing on a Hollywood film, Mr. Deeds Goes to Town (1936). The film shows vividly that happiness is a condition for achieving democracy from within. In conclusion, I shall propose that a readiness for the risk inherent in speech, rather than, say, acquiescing in received ideas or hiding behind the words of others, is at the heart of perfectionist education for globally minded citizens.     

Can earlier literacy skills have a negative impact on future home literacy activities? Evidence from Japanese

We examined the cross‐lagged relations between the home literacy environment and literacy skills in Japanese, and whether child's gender, parents' education and child's level of literacy performance moderate the relations. One hundred forty‐two Japanese children were followed from Grades 1 to 2 and assessed on character knowledge, reading fluency and spelling. Their parents responded to a questionnaire assessing the frequency of their teaching and shared reading. Results showed that parent teaching increased and shared reading decreased from Grades 1 to 2. Cross‐lagged path analysis indicated that the literacy skills in Grade 1 were negatively associated with parent teaching in Grade 2. The results further suggested that more educated parents of higher performing children, particularly boys, adjusted their involvement to their children's literacy skills, while less educated parents of lower performing children did not. These findings indicate the importance of parents' sensitivity to their child's performance. What is already known about this topic

• Home literacy environment (HLE) plays an important role in children's literacy acquisition in Western and some East Asian contexts.
• Children's early reading skills can have an impact on later HLE.
• The direction of the relationship between HLE and children's reading skills may change from positive in Kindergarten to negative in Grade 1.

What this paper adds

• In line with the findings of previous studies in other languages, Japanese parents adaptively adjust their home literacy activities to their child's literacy skills.
• The effect of children's literacy skills on later shared reading is stronger among boys than among girls.
• More educated parents of higher performing children adjust their involvement to their child's literacy skills, while less educated parents with lower performing children do not.

Implications for theory, policy or practice

• We should encourage parents to be sensitive to their child's literacy skills to help them build a foundation that will boost future literacy development.
• This can be particularly true of less educated parents with poorly performing children.
• We should encourage educators to communicate the children's literacy achievement to their parents and also suggest the means by which HLE could be beneficial for their children's literacy development.