2,123 research outputs found
Nasal function and CPAP compliance
No full text主査 : 吉川衛 / タイトル : Nasal function and CPAP compliance / 著者 : Akiko Inoue, Shintaro Chiba, Kentaro Matsuura, Hiroshi Osafune, Robson Capasso, Kota Wada/ 掲載誌 : Auris Nasus Larynx / 本文ファイル: 出版者
sj-tiff-1-jet-10.1177_15266028211058683 – Supplemental material for Impact of Baseline and Postprocedural Intravascular Ultrasound Findings on 1-Year Primary Patency After Drug-Coated Balloon Treatment of Femoropopliteal Lesions
No full textSupplemental material, sj-tiff-1-jet-10.1177_15266028211058683 for Impact of Baseline and Postprocedural Intravascular Ultrasound Findings on 1-Year Primary Patency After Drug-Coated Balloon Treatment of Femoropopliteal Lesions by Kazunori Horie, Akiko Tanaka, Masataka Taguri and Naoto Inoue in Journal of Endovascular Therapy</p
sj-docx-1-jet-10.1177_15266028211058683 – Supplemental material for Impact of Baseline and Postprocedural Intravascular Ultrasound Findings on 1-Year Primary Patency After Drug-Coated Balloon Treatment of Femoropopliteal Lesions
No full textSupplemental material, sj-docx-1-jet-10.1177_15266028211058683 for Impact of Baseline and Postprocedural Intravascular Ultrasound Findings on 1-Year Primary Patency After Drug-Coated Balloon Treatment of Femoropopliteal Lesions by Kazunori Horie, Akiko Tanaka, Masataka Taguri and Naoto Inoue in Journal of Endovascular Therapy</p
XOCB: Beyond-Birthday-Bound Secure Authenticated Encryption Mode with Rate-One Computation
No full textWe present a new block cipher mode of operation for authenticated encryption (AE), dubbed XOCB, that has the following features: (1) beyond-birthday-bound (BBB) security based on the standard pseudorandom assumption of the internal block cipher if the maximum block length is sufficiently smaller than the birthday bound, (2) rate-1 computation, and (3) supporting any block cipher with any key length. Namely, XOCB has effectively the same efficiency as the seminal OCB while having stronger quantitative security without any change in the security model or the required primitive in OCB. Although numerous studies have been conducted in the past, our XOCB is the first mode of operation to achieve these multiple goals simultaneously
Highly Secure Nonce-based MACs from the Sum of Tweakable Block Ciphers
No full textTweakable block ciphers (TBCs) have proven highly useful to boost the security guarantees of authentication schemes. In 2017, Cogliati et al. proposed two MACs combining TBC and universal hash functions: a nonce-based MAC called NaT and a deterministic MAC called HaT. While both constructions provide high security, their properties are complementary: NaT is almost fully secure when nonces are respected (i.e., n-bit security, where n is the block size of the TBC, and no security degradation in terms of the number of MAC queries when nonces are unique), while its security degrades gracefully to the birthday bound (n/2 bits) when nonces are misused. HaT has n-bit security and can be used naturally as a nonce-based MAC when a message contains a nonce. However, it does not have full security even if nonces are unique.This work proposes two highly secure and efficient MACs to fill the gap: NaT2 and eHaT. Both provide (almost) full security if nonces are unique and more than n/2-bit security when nonces can repeat. Based on NaT and HaT, we aim at achieving these properties in a modular approach. Our first proposal, Nonce-as-Tweak2 (NaT2), is the sum of two NaT instances. Our second proposal, enhanced Hash-as-Tweak (eHaT), extends HaT by adding the output of an additional nonce-depending call to the TBC and prepending nonce to the message. Despite the conceptual simplicity, the security proofs are involved. For NaT2 in particular, we rely on the recent proof framework for Double-block Hash-then-Sum by Kim et al. from Eurocrypt 2020
Capacitors
No full textThis webpage is part of a larger site by the author about electronic circuit engineering. This page introduces the reader to capacitors, including the principles behind how they work. Explanations of several different types of capacitors (including Electrolytic, Tantalum, and Mica) are accompanied by detailed color illustrations of the concepts
Lecideoid lichens of Prince Olav Coast and Soya Coast, Enderby Land, East Antarctica
No full textFive species of lecideoid lichens belonging to three genera are reported as new to the flora of the Prince Olav Coast and the Soya Coast, Enderby Land, East Antarctica; they are Carbonea capsulata (DODGE & BAKER) HALE, Lecidea andersonii R. FILSON, Lecidea cancriformis DODGE & BAKER, Lecidea soyaensis M. INOUE and Lecidella siplei (DODGE & BAKER) M. INOUE. All are endemic to Antarctica. An examination was made of the collections from the region, which were collected mainly by the author under the project of the 27th Japanese Antarctic Research Expedition (JARE-27,during January 1986 and February 1987). The type and authentic specimens of possibly related species have been restudied. Lecidea soyaensis M. INOUE is new to science and Lecidella siplei (DODGE & BAKER) M. INOUE is proposed as a new combination. Taxonomic and chemical data as well as a key to the known taxa are provided
The Hobby of Electronic Circuit Engineering
No full textThis website (originally created in Japanese and translated into English using translation software) by a Japanese systems engineer, Seiichi Inoue, provides an extensive overview of electronic circuit engineering. Topics covered include: Basic knowledge of Electronic parts, Basic knowledge of Engineering Instruments, an Introduction of Engineering Method, and the Assembly Process. A variety of electronic circuits and their uses are provided, as well as a separate section on PIC electronic circuits. The language may be difficult to follow at times given the translation, but still a gem of a site for anyone wanting to build some circuits! Keep in mind that in some sections, the author notes that he is "describing while studying, there seems to be mistakes in the contents. Do at your own risk." For some further browsing, he includes sections on his other interests, such as 3D photography, java programming, CAD, Japanese customs and the Japanese language
The distribution of first-passage times and durations in FOREX and future markets
No full textPossible distributions are discussed for intertrade durations and first-passage processes in financial markets. The view-point of renewal theory is assumed. In order to represent market data with relatively long durations, two types of distributions are used, namely a distribution derived from the Mittag Leffler survival function and the Weibull distribution. For the Mittag-Leffler type distribution, the average waiting time (residual life time) is strongly dependent on the choice of a cut-off parameter tmax, whereas the results based on the Weibull distribution do not depend on such a cut-off. Therefore, a Weibull distribution is more convenient than a Mittag Leffler type if one wishes to evaluate relevant statistics such as average waiting time in financial markets with long durations. On the other hand, we find that the Gini index is rather independent of the cut-off parameter. Based on the above considerations, we propose a good candidate for describing the distribution of first-passage time in a market: The Weibull distribution with a power-law tail. This distribution compensates the gap between theoretical and empirical results more efficiently than a simple Weibull distribution. It should be stressed that a Weibull distribution with a power-law tail is more flexible than the Mittag Leffler distribution, which itself can be approximated by a Weibull distribution and a power-law. Indeed, the key point is that in the former case there is freedom of choice for the exponent of the power-law attached to the Weibull distribution, which can exceed 1 in order to reproduce decays faster than possible with a Mittag Leffler distribution. We also give a useful formula to determine an optimal crossover point minimizing the difference between the empirical average waiting time and the one predicted from renewal theory. Moreover, we discuss the limitation of our distributions by applying our distribution to the analysis of the BTP future and calculating the average waiting time. We find that our distribution is applicable as long as durations follow a Weibull law for short times and do not have too heavy a tail
Abstract 2497: Differential requirement of amino acids on cell survival of ovarian cancer cells
No full textAbstract
Amino acids (AAs) are traditionally classified into nutritionally essential AAs (EAAs) or nonessential AAs (NEAAs) for animals and humans. Recent studies have demonstrated that not only EAAs but also NEAAs play important roles on energy metabolisms in cancer cells. However, which AAs are indispensable for human cancer cell survival has not been fully elucidated. The purposes of this study were 1) to determine the indispensable AAs for ovarian cancer (OVC) cells and 2) to investigate the relationship between the AAs synthetase and cancer cell survival.
Firstly, OVC cell lines were cultured with different medium in which each AA was depleted and cancer cell survival was examined. Among 17 OVC cell lines, EAAs were required in 12 cell lines, whereas others did not require EAAs for cell survival. Interestingly, cancer cell lines which required EAA also required at least one NEAAs, including arginine, cystine, glutamine, serine and tyrosine. Although extracellular glutamine has been known to be a critical factor for cancer cell survival and growth, 3 OVC cell lines did not require extracellular glutamine. Hence, we next examined glutamine synthetase (GS) gene, which is a critical enzyme for production of endogenous glutamine from glutamate. In OVC cell lines which did not require extracellular glutamine, GS expression level was positively correlated with cell survival rate under glutamine-depleted condition. Furthermore, we found that the expression of GS protein was negative in 38 of 645 primary OV tumors (5.9 %). Taken together, these results suggest that GS-down-regulated OVC cells require extracellular glutamine for their survival. Therefore, uptake inhibition of extracellular glutamine or reduction of extracellular glutamine level may be a novel therapeutic strategy for patients with ovarian cancer with “GS down-regulation”, as well as development of an AA-based precision medicine of OVC.
Citation Format: Akiko Furusawa, Jun Inoue, Hitoshi Tsuda, Naoyuki Miyasaka, Johji Inazawa. Differential requirement of amino acids on cell survival of ovarian cancer cells [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 2497. doi:10.1158/1538-7445.AM2017-2497</jats:p
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