An Update on Accumulating Exercise and Postprandial Lipaemia: Translating Theory Into Practice

Miyashita, Masashi,Burns, Stephen F.,Stensel, David J. The Korean Society for Preventive Medicine 2013 Journal of Preventive Medicine and Public Health Vol.46 No.suppl

Over the last two decades, significant research attention has been given to the acute effect of a single bout of exercise on postprandial lipaemia. A large body of evidence supports the notion that an acute bout of aerobic exercise can reduce postprandial triacylglycerol (TAG) concentrations. However, this effect is short-lived emphasising the important role of regular physical activity for lowering TAG concentrations through an active lifestyle. In 1995, the concept of accumulating physical activity was introduced in expert recommendations with the advice that activity can be performed in several short bouts throughout the day with a minimum duration of 10 minutes per activity bout. Although the concept of accumulation has been widely publicised, there is still limited scientific evidence to support it but several studies have investigated the effects of accumulated activity on health-related outcomes to support the recommendations in physical activity guidelines. One area, which is the focus of this review, is the effect of accumulating exercise on postprandial lipaemia. We propose that accumulating exercise will provide additional physical activity options for lowering postprandial TAG concentrations relevant to individuals with limited time or exercise capacity to engage in more structured forms of exercise, or longer bouts of physical activity. The benefits of accumulated physical activity might translate to a reduced risk of cardiovascular disease in the long-term.

Revisiting substorm events with preonset aurora

Miyashita, Y.,Ieda, A. EUROPEAN GEOSCIENCES UNION 2018 Annales geophysicae Vol.36 No.5

A Case Study of Near-Earth Magnetotail Conditions at Substorm and Pseudosubstorm Onsets

Miyashita, Y.,Angelopoulos, V.,Fukui, K.,Machida, S. American Geophysical Union 2018 Geophysical research letters Vol.45 No.13

Seaweed Carotenoid, Fucoxanthin, with Highly Bioactive and Nutritional Activities

Miyashita, Kazuo The Korean Society for Marine Biotechnology 2006 한국해양바이오학회지 Vol.1 No.1

ACCURACY OF THE IMPRESSION TECHNIQUE USING THERMOFORMING POLYMETHYL METHACRYLATE TRAY

Miyashita, Yuko,Suzuki, Hiroki,Kishi, Masataka,Ko, Sok-Min The Korean Academy of Prosthodonitics 2007 대한치과보철학회지 Vol.45 No.3

Statement of problem. Use of the conventional dental impression procedure is problematic in patients who have difficulty opening their mouth, difficulty breathing through their nose or tendency to gag. Purpose. It is necessary to make individual trays more comfortable for patients during impression taking procedure. It was reported at the KAP Annual Meeting 2001 Seoul that an improved impression technique was suitable for this purpose. In this study, the accuracy of the improved dental impression method for implant was compared with the conventional dental impression method. Material and methods. An oral simulator was made from clear acrylic resin block which had similar form of edentulous ridge. For setting up the standard, five fixtures were installed on it. Study casts were made using two kinds of impression techniques. One was the conventional method that was taken using silicone impression material and an individual resin tray under connection of inter-fixture relation. The other was the improved method in which was the connection of the impression coping and the thermoformed polymethyl methacrylate tray. In addition, two different study casts were made from the improved impression body. The coordinates of the fixture on the study model were measured by three-dimensional coordinate measuring equipment. Then the distances between each fixture were calculated and compared with that of oral simulator. Accuracy of the each impression method was also assessed. Results. The differences of inter-fixture dimension between study casts and simulator in the improved impression technique showed $0.014{\pm}0.016mm$ and $0.017{\pm}0.022mm$, respectively and that of the conventional method was $0.017{\pm}0.014mm$. There was no significant difference between the improved impression technique and conventional method. Conclusion. The improved impression technique is useful for multiple support implants.

Pyridoxal Model Compounds;Application to the Synthesis of Unnatural Amino Acids

Miyashita, Kazuyuki 전남대학교 약품개발연구소 1998 약품개발연구지 Vol.7 No.1

Pyridoxal Model as a Synthetic Tool for Unnatural Amino Acids;Catalytic β-Replacem

Miyashita, Kazuyuki 전남대학교 약품개발연구소 1999 약품개발연구지 Vol.8 No.1

Unnatural amino acids have been gathering a considerable attention from the viewpoints of biological and medicinal chemistry and extensive synthetic studies have been conducted. As a pyridoxal-pyridoxamine system is closely involved in various biosynthetic and metabolic reactions of amino acids in a biological system, we focused on this system as a novel utility for the synthesis of unnatural amino acids in an artificial system, and designed the model compounds 1 having an ionophore function at C-3. We have already found a characteristic ionophoric feature of 1 and described its application to asymmetric α-alkylation of a-amino esters by using the compounds 1 having a chiral ionophore side-chain at C-3. This method is effective for the asymmetric synthesis of α,α-dialkyl amino esters. As one of the reactions mediated by pyridoxal in a biological system, β-replacement reaction of serine hydroxyl group, as represented by tryptophan synthase (R¹=R²= H, :Nu=tryptophan), is well-known and is thought to be useful for the synthesis of various unnatural amino acids modified at the β-position. However only a few examples mimicking this reaction have been reported and the application to the synthesis of other amino acids than tryptophan derivatives has not been reported. We were interested in this reaction as a novel method for the synthesis of unnatural amino acids and designed the novel model compounds 2 based on the compound 1. Our design concepts are as follows: 1) introduction of a base function at C-5 to assist the nucleophilic replacement reaction; 2) introduction of an additional metal-chelation side-chain at C-2 to activate the pyridine ring as an electron-withdrawing function. Eventually it was found that the model compounds 2 having a heterobimetal chelation ability can catalytically replace the hydroxy function by a carbon nucleophile in the presence of Li^+ and Zn^(2+), as shown below. The detail of this β-replacement reaction catalyzed by our model compounds 2 will be presented. [그림]

Structural Change in the International Advanced Logistics

Kunio MIYASHITA 한국해운물류학회 2009 The Asian journal of shipping and Logistics Vol.25 No.1

This paper focuses on the international advanced logistics perspective in the global economy. The early 1980s could be referred to as the turning point for the world shipping industry as the first generation. Since then world physical distribution, especially world shipping of the second generation has suffered from the effect of deregulation, IT revolution and globalization on the transactions of multinational enterprises. Such structural change has been supported by the sustainable development of Asian economy. The hypothesis that the product cycle theory and the flying geese model will explain effectively the economic development and the catch up behavior of Asian countries is demonstrated by the statistical analysis on the dynamic physical flow especially from Asia to US. In 1990s international container shipping has begun to combine with the international air cargo transportation industry, so that their relationship has converted from complementary to competitive condition. Based on the econometric analysis of modal choice, it is demonstrated that the long term time costs elasticity of modal choice has been strengthened since 1995. Those structural changes in container shipping have been generating the various attractive trades by air in international logistics industry. Although the global economic crisis in 2008 has distorted the logistics development trend, it is the strategic competition in the international logistics industry that will serve to rebuild the new business model of post-economic crisis.

Knowledge, behavior, and physical determinants of lifestyle-related disease prevention among working women in Hiroshima Prefecture

Ruriko Miyashita,Chie Koh,Akira Miyata,Hiroya Matsuo 한국간호과학회 2019 한국간호과학회 학술대회 Vol.2019 No.10

특집 : 경계초월자와 도시 연구 ; 지구화시대의 매체 이주 : 경계를 넘는 샤머니즘: 재일 한국인 1세대 여성의 사례 연구

료코미야시타 ( Miyashita Ryoko ) 서울시립대학교 도시인문학연구소 2010 도시인문학연구 Vol.2 No.2

K의 사례 민속의상을 만드는 “경험” 이나 재일 한국인들의 다문화적 상황(음식, 의복, 그리고 평소 생활하는 거주지 등에서 나타나는 혼합양상)은 민족적 정체성을 초월하는 그 무엇과 함께 탄생한다. 다른 말로 하자면, 언어 의식(제사), 그리고 의식에서 사용되는 기술들은 한국적인 맥락을 이루지만 그러한 종교의식의 대상이 되는 망자의 혼, 뱀신, 조상, 우물신, 악령 등은 일본적 맥락을 이룬다. 이러한 사례는 양자가 서로 혼합하여 새로운 샤머니즘을 창조한 예이다. 근대 민족국가 이전, 사람들의 행위와 삶에 직접 맞닿아 있는 인간 세계를 가장 타당하게 드러낼 수 있는 이상적인 방식, 형식은 상대적 주종관계, 여타연합체, 또는 타자 등(“그들” 성)과 같이, 유연한 내부가 중심에서 개인들(“우리” 성)과 협력하는 것을 상상하는 데에 있었다. 그러나 지금 현대 삶의 많은 경우 행위는 “우리”와 “그들”을 유연하고 다양하게 상상하는 데에서 펼쳐진다. “국민”이라는 개념은 민족국가에 깊이 관여하고 있는 반면, “문화”는 위에서 살펴본 예와 같이 통합적이다. 생동적 타자 및 혼합적 공동 작업이라는 관점으로 이 전제를 객관화해 본다면, 이 사례는 인간의 삶은 공동 연대 세대(jointly-related generation)를 요청했다는 사실을 잘 보여준다. The example of K, “practice” of the folk custom, multicultural situation of the folk of Koreans living in Japan where food, clothing, and shelter of every day life mixes, and creates together something that surpasses the ethnic identity. In other words, words, ceremonies, and the techniques used for ceremonies are Korean context, but spirits of the dead, Snake Gods, ancestors, Well Gods, and evil sprits as a religious service subject are Japanese context, and as this case as an example creating a new shamanism as they both mix. The ideal method of a sound articulation of the human world that directed behaviors and lives of the people before the modern nation states, formation depended on the imagination of the collaboration of a flexible inside with individuals in the center (“us” nature) such as like the relative master servant relationship or other networks, and the otherness (“they” nature). However, in many situations of life now, behavior is directed by imaging various flexible “us” and “they”. Only with a concept of “people” related deeply to nation states, and “culture” the combination as such as this example can be over looked. This example points out the consideration that the human life by the objectification of these premises restricting the viewpoint, and the point of view where dynamic otherness and collaboration forms, called the jointly-related generation.