Automatic extraction of bilingual word pairs using inductive chain learning in various languages

In this paper, we propose a new learning method for extracting bilingual word pairs from parallel corpora in various languages. In cross-language information retrieval, the system must deal with various languages. Therefore, automatic extraction of bilingual word pairs from parallel corpora with various languages is important. However, previous works based on statistical methods are insufficient because of the sparse data problem. Our learning method automatically acquires rules, which are effective to solve the sparse data problem, only from parallel corpora without any prior preparation of a bilingual resource (e.g., a bilingual dictionary, a machine translation system). We call this learning method Inductive Chain Learning (ICL). Moreover, the system using ICL can extract bilingual word pairs even from bilingual sentence pairs for which the grammatical structures of the source language differ from the grammatical structures of the target language because the acquired rules have the information to cope with the different word orders of source language and target language in local parts of bilingual sentence pairs. Evaluation experiments demonstrated that the recalls of systems based on several statistical approaches were improved through the use of ICL.     

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.     

Exploration versus exploitation in technology firms: The role of compensation structure for R&D workforce

We investigate the relationship between a firm’s compensation structure and the extent to which its innovation is more exploration versus exploitation oriented. Specifically, we assess two aspects of a firm’s compensation design—horizontal dispersion within job levels and vertical tournament incentives between job levels. A six-year panel of compensation records of 671,028 employees working at 81 U.S.-based high technology firms between 1997 and 2002 are used to construct measures that characterize a firm's pay structure, which are linked to these firms’ patents filed in the U.S. We find that firms with higher-powered tournament incentives in vertical compensation structure report higher fraction of innovation directed towards exploration. Horizontal pay dispersion, on the other hand, shows a negative relationship with the exploration in firms where R&D employees’ age variance is low. In firms where R&D employees’ age variance is high, the negative relationship between horizontal pay dispersion and exploration is muted.     

Effect of a marathon run on serum lipoproteins, creatine kinase, and lactate dehydrogenase in recreational runners

The objective of this study was to determine the effect of a marathon run on serum lipid and lipoprotein concentrations and serum muscle enzyme activities and follow their recovery after the run. These blood concentrations were measured before, immediately after, and serially after a marathon run in 15 male recreational runners. The triglyceride level was significantly elevated postrace, then fell 30% below baseline 1 day after the run, and returned to baseline after 1 week. Total cholesterol responded less dramatically but with a similar pattern. High-density lipoprotein cholesterol remained significantly elevated and low-density lipoprotein cholesterol was transiently reduced for 3 days after the run. The total cholesterol/high-density cholesterol ratio was significantly lowered for 3 days. Serum lactate dehydrogenase activity significantly doubled postrace and then declined but remained elevated for 2 weeks. Serum creatine kinase activity peaked 24 hr after the run, with a 15-fold rise, and returned to baseline after 1 week. The rise of these enzymes reflects mechanically damaged muscle cells leaking contents into the interstitial fluid. It is concluded that a prolonged strenuous exercise bout in recreational runners, such as a marathon, produces beneficial changes in lipid blood profiles that are significant for only 3 days. However, muscle damage is also evident for 1 week or more from the dramatic and long-lasting effect on enzyme levels. Laboratory values for these runners were outside normal ranges for some days after the race.     

NEW IDEAS ON MATHEMATICS EDUCATION IN COLLEGES OF TECHNOLOGY

In this article, new ideas for mathematics education for engineering are proposed as follows: (1) Mathematics will be taught by introducing several specific engineering themes early in the program. (2) The themes selected are in the engineering field that the student is studying. (3) As students knowledge of mathematics advances, they revisit these engineering themes for further analysis. The author discusses the reasons motivating a search for a new approach to mathematics education and suggests some advantages and disadvantages of the approach outlined here. An example from mechanical engineering is presented.     

辛亥革命与日本大学

甲午战争和八国联军入侵之后,帝国主义列强对华侵略的脚步并未放缓,而根据清政府留学政策来到日本的中国留学生,却违背了清朝政府的意图,转而参加救国的政治活动.20世纪初,日本大学中有许多中国留学生在籍学习.这些中国学生也投身于反抗列强侵略的民族运动和推翻已成为列强代理的清政府的革命运动中.作为辛亥革命成果而诞生的中华民国,推进了政治制度变革,进行了司法改革,并开设了两院制国会.在这一过程中,从以讲授法律学和政治学为主的日本大学毕业的部分留学生,活跃于中华民国初期的司法界及国会中,对中国现代政治体制的建立发挥了重要作用.     

Why Zico is called the ‘God of Soccer’ in Japan: the legacy of Zico to Japanese soccer

This essay will shed light on the reasons why Brazilian football player Zico has become the ‘God of Soccer’ in Japan by discussing Zico’s unique character and actions and the social condition surrounding him, as well as the role played by the image of a hero held by the Japanese. The study uses the existing literature on Zico’s tenure in Japan along with Zico’s own writings and anecdotes to reflect upon his legacies from various angles. While it emphasizes the ability of an interpreter in constructing Zico’s image, it also encapsulates the key moments and images Zico elicited in Japan, including his brilliant style of play, his memorable hat-trick in his opening J-League match and his figure as a father of Japanese football. The essay will try to show that Zico’s emphasis on the importance of family, as in building a ‘Zico Family’, as well as his strong sense of obligation, professionalism and integrity contributed to creating his image as a legendary human being in Japan.     

Magnesium status and the physical performance of volleyball players: effects of magnesium supplementation

Abstract

The aim of this study was to test the hypothesis that magnesium supplementation influences the physical performance of volleyball players, as the efficacy of this approach remains questionable. Twenty-five professional male volleyball players were assigned randomly to experimental (350 mg Mg · d^–1, 4 weeks) and control groups (500 mg maltodextrin · d^–1, 4 weeks) maintaining inter-group homogeneity of urinary magnesium. Erythrocyte, plasma and urinary magnesium levels, plasma creatine kinase activity, lactate production, maximal oxygen uptake (VO₂ max) and plyometric (squat jump, countermovement jump, countermovement jump with arm swing) and isokinetic (peak torque, potency and total work) performances were evaluated before (T₀) and after (T₁) supplementation. Levels of erythrocyte and urinary magnesium and creatine kinase activity and VO₂ max remained within normal ranges in both groups. Plasma magnesium decreased significantly only within the experimental group. Significant decreases in lactate production and significant increases (of up to 3 cm) in countermovement jump and countermovement jump with arm swing values were detected in the experimental group following magnesium supplementation, but not in the control group at T₁. It is concluded that magnesium supplementation improved alactic anaerobic metabolism, even though the players were not magnesium-deficient.