794 research outputs found
How ICTs Raise Manufacturing Performance: Firm-level Evidence in Southeast Asia.
Get PDFThis paper examines the effects of information and communication technologies (ICTs) on business performance, using firm-level data obtained through a questionnaire survey in four ASEAN countries (Indonesia, The Philippines, Thailand and Vietnam). Sources of information and new technologies exchanged via ICTs by firms are also explored to investigate the mechanism behind ICT adoption. Empirical results verify that the introduction of ICT to reorganize business processes is significantly correlated with business performance, in particular the development of export markets and improvement of production management. ICTs facilitate access to information and technologies accumulated in in-house departments and joint-venture (JV) affiliates of the respondent firms. There are considerable differences between multinational companies (MNCs)/JVs and local firms. MNCs/JVs make use of information and technologies obtainable via ICTs from their own R&D departments, JVs established with local partners and foreign-owned suppliers/customers to improve factory management, mostly for product quality improvement and production cost reduction. In contrast, local firms interconnect their own R&D departments via ICTs to enhance their business performance in broader areas than MNCs/JVs, including the development of export markets.
山村での生活が子どものメラトニン反応に及ぼす影響
No full text掲載誌：Shingo Noi, Akiko Shikano, Naoko Yamada, Ryo Tanaka, Kosuke Tanabe and Hideyuki Tsuji (2021). Effects of change in residence to a mountain village on children’s melatonin responses, Biological Rhythm Research, 52(1): 60–69.研究紹介 : 国外学術誌掲載論文か
Effects of change in residence to a mountain village on children’s melatonin responses
Get PDF掲載誌：Shingo Noi, Akiko Shikano, Naoko Yamada, Ryo Tanaka, Kosuke Tanabe and Hideyuki Tsuji (2021). Effects of change in residence to a mountain village on children’s melatonin responses, Biological Rhythm Research, 52(1): 60–69.研究紹介 : 国外学術誌掲載論文からdepartmental bulletin pape
Characteristics of overlap region in high-Reynolds number turbulent channel flow
No full textDirect numerical simulation of the fully developed turbulent channel flows have been carried out at the Reynolds number based on the friction velocity and the channel half width, 2000, 4000 and 8000. A hybrid 10th order accurate finite difference scheme in the stream and spanwise directions, and a second-order scheme in the wall-normal direction is adapted as the spatial discretization method. We observed the plateau profiles in the indicator function corresponded to the von Karman constant. Furthermore, second peak of streamwise pre-multiplied spectra were appeared in the same wall normal height, 300 < y+ < 600, in case of Re = 4000. Nevertheless, the effects of the lager than the channel half height scale on the streamwise turbulent intensity are fixed contributions without dependence on Reynolds number. These results suggested that the new streamwise vortexes are formed between buffer layer and outer layer with increasing of Reynolds number
Mechanistic Investigations into the Palladium-Catalyzed Decarboxylative Allylic Alkylation of Ketone Enolates Using the PHOX Ligand Architecture
Get PDFPalladium-catalyzed asymmetric allylic alkylation has become a large and important field for chemical synthesis. Many methodologies in this field offer mild conditions under which challenging and important molecular features can be reliably synthesized, including chiral all-carbon quaternary stereocenters. As a result, palladium- catalyzed asymmetric allylic alkylation has found significant use in total synthesis, and growing use in industry. While the general process of palladium-catalyzed asymmetric allylic alkylation has been studied for decades, there have been a number of recent modifications and developments, such as asymmetric versions of decarboxylative allylic alkylation procedures that are not yet well understood. The development of future implementations and improvements to palladium-catalyzed asymmetric allylic alkylation and related methodologies is expected to be facilitated by a better understanding of these more recent developments, and thus further mechanistic investigation is warranted.
Reported herein is a set of investigations into the palladium-catalyzed decarboxylative asymmetric allylic alkylation of ketone enolates using the PHOX ligand architecture. By monitoring the reaction via 31P NMR, a series of previously unidentified key intermediates is discovered. Two representatives of these key intermediates are isolated and characterized. The solution behavior of these species under reaction-like conditions is studied along with a few novel and related complexes. The role of these intermediates and their impact on the behavior of the reaction and product formation is discussed. Previously confounding experimentally observed behavior for this methodology is rationalized via the properties elucidated for these discovered intermediates.</p
Skin friction factor and mean velocity profile measured in high-reynolds-number turbulent pipe flow
No full textA friction factor in a fully developed pipe flow is measured very accurately over wide range Reynolds number from 103 to 107 at the high Reynolds number facility in AIST,NMIJ. Also a velocity profile is measured by using a LDV up to 106. From the comparison between a velocity profile and the friction factor, we found that a log-law profile is well observed and Kármán constant is estimated to be 0.385. Based on the measurements, we present a new functional form of the friction factor which is consistent with mean velocity profile
Abstract 4392: Genetic diagnosis of multiple hepatocellular carcinoma
No full textAbstract
Multiple hepatocellular carcinoma (HCC) is categorized into two types; multicentric hepatocarcinogenesis (MC) and intrahepatic metastasis (IM). Although discrimination of the types of multiple HCC is of clinical importance, it is quite difficult to determine it correctly even after histological diagnosis. In order to determine multiple HCC as MC or IM, we compared pairs of multiple HCC samples from 40 patients with multiple HCC and 2 patients with pairs of primary HCC and extrahepatic metastasis such as adrenal grand and lung metastasis with regard to molecular aberrations. Exome sequence showed that more than 70% of somatic mutations were common in the pairs of IM, which were consistent with the result of a pair of primary HCC and extrahepatic metastasis, while no common somatic mutations was detected in genomic-MC (gMC) pairs. Notably, more than 60% of clinically metachronous-MC cases were diagnosed as genomic-IM (gIM) due to the concordance of mutation and shows significantly frequent tumor thrombus, suggesting that gIM pairs developed from the common ancestor. In addition, cell-free DNA was analyzed using exome sequence in five patients with recurrent HCC, and found that somatic mutations of cell free DNA were similar to the primary HCC only in gIM but not in gMC cases. Taken together, comparison of mutations in a pair of HCCs makes it possible to classify multiple HCCs into MC and IM, which is difficult to be correctly determined in clinical practice. Furthermore liquid biopsy for mutation analysis is available to make treatment plans for multiple HCC patients.
Citation Format: Yutaka Midorikawa, Shogo Yamamoto, Kenji Tatsuno, Hiroki Ueda, Shingo Tsuji, Genta Nagae, Tadatoshi Takayama, Hiroyuki Aburatani. Genetic diagnosis of multiple hepatocellular carcinoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 4392. doi:10.1158/1538-7445.AM2017-4392</jats:p
Effects of Participatory and Physical Life Goals in a Preventive Care Program for Frail Community-Dwelling Older People: A Retrospective Cohort Study
No full textAbstract
Date Presented 3/31/2017
Life goals related to activities and participation had a more positive effect on frail older people’s health and quality of life than did life goals related to physical function and structure. The setting of meaningful goals may help to improve the effectiveness of preventive care programs.
Primary Author and Speaker: Yoshimi Yuri
Additional Authors and Speakers: Shinichi Takabatake, Yoko Tsuji, Yuri Fujii, Toshikatsu Kaneda, Yasuhiro Higashi, Hiroko Hashimoto, Kazuyo Nakaoka, Mari Oka</jats:p
骨格原子に高周期14族元素を組み込んだアリールアニオン種の合成研究
Get PDF京都大学新制・課程博士博士(理学)甲第25134号理博第5041号新制||理||1718(附属図書館)京都大学大学院理学研究科化学専攻(主査)准教授 水畑 吉行, 教授 若宮 淳志, 教授 畠山 琢次学位規則第4条第1項該当Doctor of Agricultural ScienceKyoto UniversityDGA
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