検索結果 1441 件
フルテキストURL | fulltext.pdf |
---|---|
著者 | Tanaka, Masato| Chan, Tsang-Tung| Misawa, Haruo| Uotani, Koji| Arataki, Shinaya| Takigawa, Tomoyuki| Mazaki, Tetsuro| Sugimoto, Yoshihisa| |
キーワード | achondroplasia vertebral column osteotomy long-term follow-up navigation |
発行日 | 2022-04-27 |
出版物タイトル | Medicina |
巻 | 58巻 |
号 | 5号 |
出版者 | MDPI |
開始ページ | 605 |
ISSN | 1010-660X |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © 2022 by the authors. |
論文のバージョン | publisher |
PubMed ID | 35630021 |
DOI | 10.3390/medicina58050605 |
Web of Science KeyUT | 000802445600001 |
関連URL | isVersionOf https://doi.org/10.3390/medicina58050605 |
フルテキストURL | fulltext.pdf |
---|---|
著者 | Nojima, Tsuyoshi| Naito, Hiromichi| Obara, Takafumi| Ageta, Kohei| Yakushiji, Hiromasa| Yumoto, Tetsuya| Fujisaki, Noritomo| Nakao, Atsunori| |
キーワード | ammonia cardiopulmonary resuscitation neurological outcome biomarkers |
発行日 | 2022-05-04 |
出版物タイトル | Journal Of Clinical Medicine |
巻 | 11巻 |
号 | 9号 |
出版者 | MDPI |
開始ページ | 2566 |
ISSN | 2077-0383 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © 2022 by the authors. |
論文のバージョン | publisher |
PubMed ID | 35566692 |
DOI | 10.3390/jcm11092566 |
Web of Science KeyUT | 000794498600001 |
関連URL | isVersionOf https://doi.org/10.3390/jcm11092566 |
フルテキストURL | fulltext20220428-3.pdf |
---|---|
著者 | Fukushima, Yukinobu| Suda, Tatsuya| Murase, Tutomu| Tarutani, Yuya| Yokohira, Tokumi| |
キーワード | IaaS SMS (server migration service) server locations energy cost monetary penaltymixed-integer programming |
備考 | This is the peer reviewed version of the following article: [Fukushima, Y, Suda, T, Murase, T, Tarutani, Y, Yokohira, T. Minimizing the monetary penalty and energy cost of server migration service. Trans Emerging Tel Tech. 2022;e4511. doi:10.1002/ett.4511], which has been published in final form at [https://doi.org/10.1002/ett.4511]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages there of by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.| |
発行日 | 2022-04-10 |
出版物タイトル | Transactions on Emerging Telecommunications Technologies |
巻 | 33巻 |
号 | 9号 |
出版者 | Wiley |
開始ページ | e4511 |
ISSN | 2161-3915 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © 2022 John Wiley & Sons, Ltd. |
論文のバージョン | author |
DOI | 10.1002/ett.4511 |
Web of Science KeyUT | 000779978300001 |
関連URL | isVersionOf https://doi.org/10.1002/ett.4511 |
JaLCDOI | 10.18926/AMO/63426 |
---|---|
フルテキストURL | 76_2_217.pdf |
著者 | Yabuno, Satoru| Sasada, Susumu| Umakoshi, Michiari| Nagase, Takayuki| Sugahara, Chiaki| Kawauchi, Satoshi| Yasuhara, Takao| Date, Isao| |
抄録 | A 3-year-old boy had difficulty sitting up and walking for several months. Magnetic resonance imaging (MRI) revealed an intradural tumor at the L3-4 level. The tumor was successfully resected by unilateral hemilaminectomy and diagnosed as dermoid cyst. The patient had an uneventful postoperative course without pain, and MRI found no recurrence after surgery. A small bone defect remained that might be favorably reconstructed with autologous and artificial bone. Hemilaminectomy allowed us to resect the cauda equina dermoid cyst with minimal invasiveness. Pediatric patients require follow-up as they are more likely to experience spinal deformity or instability after surgery. |
キーワード | cauda equina tumor child dermoid cyst hemilaminectomy spinal tumor |
Amo Type | Case Report |
出版物タイトル | Acta Medica Okayama |
発行日 | 2022-04 |
巻 | 76巻 |
号 | 2号 |
出版者 | Okayama University Medical School |
開始ページ | 217 |
終了ページ | 223 |
ISSN | 0386-300X |
NCID | AA00508441 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
著作権者 | Copyright Ⓒ 2022 by Okayama University Medical School |
論文のバージョン | publisher |
査読 | 有り |
PubMed ID | 35503450 |
Web of Science KeyUT | 000792291900004 |
フルテキストURL | fulltext.pdf |
---|---|
著者 | Takatsu, Fumiaki| Yamamoto, Hiromasa| Tomioka, Yasuaki| Tanaka, Shin| Shien, Kazuhiko| Suzawa, Ken| Miyoshi, Kentaroh| Otani, Shinji| Okazaki, Mikio| Sugimoto, Seiichiro| Yamane, Masaomi| Takahashi, Katsuhito| Toyooka, Shinichi| |
キーワード | Retroperitoneal sarcoma Lung metastasis Metastasectomy |
発行日 | 2022-04-08 |
出版物タイトル | World Journal Of Surgical Oncology |
巻 | 20巻 |
号 | 1号 |
出版者 | BMC |
開始ページ | 114 |
ISSN | 1477-7819 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © The Author(s) 2022. |
論文のバージョン | publisher |
PubMed ID | 35395855 |
DOI | 10.1186/s12957-022-02552-y |
Web of Science KeyUT | 000780301100001 |
関連URL | isVersionOf https://doi.org/10.1186/s12957-022-02552-y |
フルテキストURL | fulltext.pdf |
---|---|
著者 | Higaki, Fumiyo| Inoue, Satoshi| Oda, Wakako| Matsusue, Eiji| Hiraki, Takao| |
キーワード | pial blood supply peritumoral brain edema arachnoid plane peritumoral flow void magnetic resonance imaging |
発行日 | 2022-04-08 |
出版物タイトル | Acta Radiologica Open |
巻 | 11巻 |
号 | 4号 |
出版者 | Sage Publications Ltd. |
ISSN | 2058-4601 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © The Author(s) 2022 |
論文のバージョン | publisher |
PubMed ID | 35425642 |
DOI | 10.1177/20584601221091208 |
Web of Science KeyUT | 000780184200001 |
関連URL | isVersionOf https://doi.org/10.1177/20584601221091208 |
JaLCDOI | 10.18926/AMO/63406 |
---|---|
フルテキストURL | 76_2_129.pdf |
著者 | Kubo, Kotaro| Nakamura, Keiichiro| Okamoto, Kazuhiro| Matsuoka, Hirofumi| Ida, Naoyuki| Haruma, Tomoko| Ogawa, Chikako| Masuyama, Hisashi| |
抄録 | Cancer patients have increased risk of venous thromboembolism (VTE) that must be assessed before treatment. This study aimed to determine effective VTE biomarkers in gynecologic cancer (GC). We investigated the correlation between D-dimer levels, Khorana risk score (KRS), Glasgow prognostic score (GPS), and VTE in 1499 GC patients (583 cervical cancer (CC), 621 endometrial cancer (EC), and 295 ovarian cancer (OC) patients) treated at our institution between January 2008 and December 2019. χ2 and Mann–Whitney U-tests were used to determine statistical significance. We used receiver operating characteristic-curve analysis to evaluate the discriminatory ability of each parameter. D-dimer levels were significantly correlated with KRS and GPS in patients with GC. VTE was diagnosed in 11 CC (1.9%), 27 EC (4.3%), and 39 OC patients (13.2%). Optimal D-dimer cut-off values for VTE were 3.1, 3.2, and 3.9 μg/ml in CC, EC and OC patients, respectively. D-dimer could significantly predict VTE in all GC patients. Furthermore, D-dimer combined with GPS was more accurate in predicting VTE than other VTE biomarkers in stage IIIC and IVA OC (AUC: 0.846; p<0.001). This study demonstrates that combined D-dimer and GPS are useful in predicting VTE in patients with OC. |
キーワード | D-dimer gynecologic cancer venous thromboembolism |
Amo Type | Original Article |
出版物タイトル | Acta Medica Okayama |
発行日 | 2022-04 |
巻 | 76巻 |
号 | 2号 |
出版者 | Okayama University Medical School |
開始ページ | 129 |
終了ページ | 135 |
ISSN | 0386-300X |
NCID | AA00508441 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
著作権者 | Copyright Ⓒ 2022 by Okayama University Medical School |
論文のバージョン | publisher |
査読 | 有り |
PubMed ID | 35503440 |
Web of Science KeyUT | 000792374900004 |
JaLCDOI | 10.18926/AMO/63403 |
---|---|
フルテキストURL | 76_2_105.pdf |
著者 | Takaoka, Megumi| Ohsumi, Shozo| Ikejiri, Haruka| Shidahara, Tomohiro| Miyoshi, Yuichiro| Takahashi, Mina| Takashima, Seiki| Aogi, Kenjiro| |
抄録 | Cases of breast cancer metastasis after achieving a pathological complete response (pCR) with neoadjuvant chemotherapy (NAC) are sometimes encountered in clinical practice. We investigated the prognostic factors for pCR in patients with breast cancer after NAC. This retrospective cohort study included patients with localized breast cancer who underwent NAC followed by surgery between 2004 and 2020 and achieved a pCR. The associations between clinical factors and distant metastasis-free survival rate were statistically analyzed. We analyzed data for 127 patients. Twelve patients (9.4%) had distant metastases, and seven (5.5%) died. For estrogen receptor (ER)-positive patients, the distant metastasis-free survival rate was 94.6% for both 5 and 8 years. In contrast, ER-negative patients had a distant metastasis-free survival rate of 87.6% and 85.4% for 5 and 8 years (p=0.094), respectively. In cT0-2 patients, the distant metastasis-free survival rate was 92.4% for 5 years and 90.5% for 8 years, whereas in cT3-4 patients, the distant metastasis-free survival rate was 83.5% for 5 years and 83.5% for 8 years (p=0.301). This study suggested that patients with ER-negative, pre-NAC cT3 or T4 breast cancer who had achieved a pCR after NAC tended to have a worse prognosis. |
キーワード | breast carcinoma neoadjuvant therapy prognosis |
Amo Type | Original Article |
出版物タイトル | Acta Medica Okayama |
発行日 | 2022-04 |
巻 | 76巻 |
号 | 2号 |
出版者 | Okayama University Medical School |
開始ページ | 105 |
終了ページ | 111 |
ISSN | 0386-300X |
NCID | AA00508441 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
著作権者 | Copyright Ⓒ 2022 by Okayama University Medical School |
論文のバージョン | publisher |
査読 | 有り |
PubMed ID | 35503437 |
Web of Science KeyUT | 000792374900001 |
フルテキストURL | fulltext.pdf |
---|---|
著者 | Nonoyama, Kazuki| Liu, Ziang| Fujiwara, Tomofumi| Alam, Md Moktadir| Nishi, Tatsushi| |
キーワード | robot motion planning robot placement optimization PID genetic algorithm particle swarm optimization |
発行日 | 2022-03-11 |
出版物タイトル | Energies |
巻 | 15巻 |
号 | 6号 |
出版者 | MDPI |
開始ページ | 2074 |
ISSN | 1996-1073 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © 2022 by the authors. |
論文のバージョン | publisher |
DOI | 10.3390/en15062074 |
Web of Science KeyUT | 000775537400001 |
関連URL | isVersionOf https://doi.org/10.3390/en15062074 |
JaLCDOI | 10.18926/CTED/63296 |
---|---|
タイトル(別表記) | An Investigation on “Ae” of Real-time Online Lecture at the Okayama university - Using the YouTube Live + OBS Studio and Google Classroom Web Applications |
フルテキストURL | cted_012_033.pdf |
著者 | 山川 純次| 髙旗 浩志| |
抄録 | 岡山大学でリアルタイムオンライン講義を実施した。使用したオンラインシステムはYouTubeLiveとGoogleClassroomのWebアプリケーションを使用して作成者が新たに構築した。このシステムは,講義ビデオアーカイブを提供することも可能であった。システムの構築費と運用費はかなり低くなる可能性がある。LMSは,講義ビデオの配信に加えて,学生とのコミュニケーションを合理化するために用いた。ビデオ配信システムまたはLMSの障害が原因でオンライン講義が停止することはなかった。このシステムにより講師は講義室の設備や講義の時間割の制約から解放され,マルチメディア教材やバーチャル教材の使用が容易になった。また学生の受講効率は従来の講義形式に対して約2.9倍に向上したと考えられる。授業の構成や内容の質的問題の検証,授業内容に対する生徒の理解の深化,生徒が習得した資質や能力の内容の検証は今後の課題である。 |
キーワード | オンライン講義(Online Lecture) OBS Studio YouTube Live Google Classroom 受講効率(Attendance efficiency) |
出版物タイトル | 岡山大学教師教育開発センター紀要 |
発行日 | 2022-03-30 |
巻 | 12巻 |
開始ページ | 33 |
終了ページ | 46 |
ISSN | 2186-1323 |
言語 | 日本語 |
著作権者 | Copyright © 2022 岡山大学教師教育開発センター |
論文のバージョン | publisher |
フルテキストURL | fulltext.pdf |
---|---|
著者 | Ocho, Kazuki| Hagiya, Hideharu| Hasegawa, Kou| Fujita, Kouji| Otsuka, Fumio| |
キーワード | COVID-19 clinical score 4C mortality score mortality severity length of hospitalization |
発行日 | 2022-02-03 |
出版物タイトル | Journal Of Clinical Medicine |
巻 | 11巻 |
号 | 3号 |
出版者 | MDPI |
開始ページ | 821 |
ISSN | 2077-0383 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © 2022 by the authors. |
論文のバージョン | publisher |
PubMed ID | 35160272 |
DOI | 10.3390/jcm11030821 |
Web of Science KeyUT | 000759123500001 |
関連URL | isVersionOf https://doi.org/10.3390/jcm11030821 |
フルテキストURL | fulltext.pdf |
---|---|
著者 | Toda, Yuichiro| Wada, Akimasa| Miyase, Hikari| Ozasa, Koki| Matsuno, Takayuki| Minami, Mamoru| |
キーワード | 3D space perception growing neural gas topological structure learning method |
発行日 | 2022-02-07 |
出版物タイトル | Applied Sciences-Basel |
巻 | 12巻 |
号 | 3号 |
出版者 | MDPI |
開始ページ | 1705 |
ISSN | 2076-3417 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © 2022 by the authors. |
論文のバージョン | publisher |
DOI | 10.3390/app12031705 |
Web of Science KeyUT | 000759097000001 |
関連URL | isVersionOf https://doi.org/10.3390/app12031705 |
フルテキストURL | fulltext.pdf |
---|---|
著者 | Mizuno, Tomofumi| Nishii, Nobuhiro| Morita, Hiroshi| Ito, Hiroshi| |
キーワード | Transvenous pacemaker Fontan operation Sinus node dysfunction Atrial tachycardia Case report |
発行日 | 2022-01-13 |
出版物タイトル | European Heart Journal-Case Reports |
巻 | 6巻 |
号 | 1号 |
出版者 | Oxford Univ Press |
開始ページ | ytac003 |
ISSN | 2514-2119 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © The Author(s) 2022. |
論文のバージョン | publisher |
PubMed ID | 35059560 |
DOI | 10.1093/ehjcr/ytac003 |
Web of Science KeyUT | 000753349900033 |
関連URL | isVersionOf https://doi.org/10.1093/ehjcr/ytac003 |
JaLCDOI | 10.18926/AMO/63217 |
---|---|
フルテキストURL | 76_1_89.pdf |
著者 | Ryuko, Tsuyoshi| Yamamoto, Hiromasa| Sugimoto, Seiichiro| Suzawa, Ken| Miyoshi, Kentaroh| Otani, Shinji| Okazaki, Mikio| Yamane, Masaomi| Toyooka, Shinichi| |
抄録 | Congenital lobar emphysema (CLE) is defined as the hyperinflation of pulmonary lobes due to obstruction of the flow of air via a known or unknown etiology, which causes pressure symptoms in the adjacent organs. CLE is mainly diagnosed in the neonatal period, and very few adult cases have been reported. Here we report a 34-year-old male with muscular dystrophy who was diagnosed with CLE on examination. He underwent a right lower lobectomy via 3-portal completely video-assisted thoracoscopic surgery, and his symptoms improved. Thoracoscopic surgery helped preserve the respiratory muscles and led to the improvement of respiratory function in this patient. |
キーワード | congenital lobar emphysema, adult, lobectomy, completely video-assisted thoracoscopic surgery, muscular dystrophy |
Amo Type | Case Report |
出版物タイトル | Acta Medica Okayama |
発行日 | 2022-02 |
巻 | 76巻 |
号 | 1号 |
出版者 | Okayama University Medical School |
開始ページ | 89 |
終了ページ | 92 |
ISSN | 0386-300X |
NCID | AA00508441 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
著作権者 | Copyright Ⓒ 2022 by Okayama University Medical School |
論文のバージョン | publisher |
査読 | 有り |
PubMed ID | 35237004 |
Web of Science KeyUT | 000762933000001 |
JaLCDOI | 10.18926/AMO/63214 |
---|---|
フルテキストURL | 76_1_71.pdf |
著者 | Tanaka, Masato| Sonawane, Sumeet| Fujiwara, Yoshihiro| Uotani, Koji| Arataki, Shinya| Yamauchi, Taro| Ye, Youchen| Misawa, Haruo| |
抄録 | The surgical treatment of pediatric atlantoaxial subluxation (AAS) in Down syndrome (DS) remains technically challenging due to radiation exposure and complications such as vertebral artery injury and nonunion. The established treatment is fixation with a C1 lateral mass screw and C2 pedicle screw (modified Goel technique). However, this technique requires fluoroscopy for C1 screw insertion. To avoid exposing the operating team to radiation we present here a new C-arm free O-arm navigated surgical procedure for pediatric AAS in DS. A 5-year-old male DS patient had neck pain and unsteady gait. Radiograms showed AAS with an atlantodental interval of 10 mm, and irreducible subluxation on extension. CT scan showed Os odontoideum and AAS. MRI demonstrated spinal cord compression between the C1 posterior arch and odontoid process. We performed a C-arm free O-arm navigated modified Goel procedure with postoperative halo-vest immobilization. At oneyear follow-up, good neurological recovery and solid bone fusion were observed. The patient had no complications such as epidural hematoma, infection, or nerve or vessel injury. This novel procedure is a useful and safe technique that protects surgeons and staff from radiation risk. |
キーワード | atlantoaxial fixation Down syndrome C-arm free O-arm navigation surgery modified Goel technique |
Amo Type | Case Report |
出版物タイトル | Acta Medica Okayama |
発行日 | 2022-02 |
巻 | 76巻 |
号 | 1号 |
出版者 | Okayama University Medical School |
開始ページ | 71 |
終了ページ | 78 |
ISSN | 0386-300X |
NCID | AA00508441 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
著作権者 | Copyright Ⓒ 2022 by Okayama University Medical School |
論文のバージョン | publisher |
査読 | 有り |
PubMed ID | 35237001 |
Web of Science KeyUT | 000762803800001 |
JaLCDOI | 10.18926/AMO/63206 |
---|---|
フルテキストURL | 76_1_33.pdf |
著者 | Zhou, Jia-Yi| Hou, Hai-Tao| Wang, Shi-Fu| Yang, Qin| He, Guo-Wei| |
抄録 | Trace elements selenium (Se) and cobalt (Co) are essential in the human body, and a correlation between Se and cardiac surgery has been suggested. We investigated the plasma concentrations of Se and Co during and after coronary artery bypass grafting (CABG) surgery under cardiopulmonary bypass (CPB). From December 2019 to January 2020, preoperative plasma samples from isolated first-time CABG patients (n=20; 10 males, 10 females) were prospectively collected post-anesthesia and before CPB (T1), 45 min after CPB started (T2), 90 min after CPB started (T3), and postoperative days 1 (T4), and day 4 (T5). The plasma concentrations of Se and Co were measured. The Se concentration was significantly decreased at T2 (105.24±4.08 vs. 68.56±2.42 μg/L, p<0.001) and T3 (105.24±4.08 vs. 80.41±3.40 μg/L, p<0.001). The Co concentration was significantly decreased at T4 (0.35±0.19 vs. 0.26±0.13 μg/L, p<0.01) and T5 (0.35±0.19 vs. 0.23±0.11 μg/L, p<0.001). Five patients developed atrial fibrillation (AF); there was no other operative mortality or major morbidity. This is the first report of alterations of plasma Se and Co concentrations during and after CABG surgery. Our results may indicate that Se supplementation before or during CABG and Co supplementation after CABG may become necessary for patients undergoing CABG. |
キーワード | trace element CABG cardiopulmonary bypass selenium cobalt |
Amo Type | Original Article |
出版物タイトル | Acta Medica Okayama |
発行日 | 2022-02 |
巻 | 76巻 |
号 | 1号 |
出版者 | Okayama University Medical School |
開始ページ | 33 |
終了ページ | 39 |
ISSN | 0386-300X |
NCID | AA00508441 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
著作権者 | Copyright Ⓒ 2022 by Okayama University Medical School |
論文のバージョン | publisher |
査読 | 有り |
PubMed ID | 35236996 |
Web of Science KeyUT | 000762812700005 |
フルテキストURL | fulltext.pdf |
---|---|
著者 | Hiranaka, Takaaki| Miyazawa, Shinichi| Furumatsu, Takayuki| Kodama, Yuya| Kamatsuki, Yusuke| Masuda, Shin| Okazaki, Yuki| Kintaka, Keisuke| Ozaki, Toshifumi| |
キーワード | Total knee arthroplasty Extension gap Flexion gap Predictor Navigation system |
発行日 | 2022-01-22 |
出版物タイトル | BMC Musculoskeletal Disorders |
巻 | 23巻 |
号 | 1号 |
出版者 | BMC |
開始ページ | 78 |
ISSN | 1471-2474 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © The Author(s) 2022. |
論文のバージョン | publisher |
PubMed ID | 35065647 |
DOI | 10.1186/s12891-022-05035-z |
Web of Science KeyUT | 000745608100002 |
関連URL | isVersionOf https://doi.org/10.1186/s12891-022-05035-z |
フルテキストURL | fulltext20220201-3.pdf |
---|---|
著者 | Kusunoki, Koki| Yamauchi, Toshihiro| Taniguchi, Hideo| |
抄録 | Physical memory capacity has increased owing to large-scale integration. In addition, memory footprints have increased in size, as multiple programs are executed on a single computer. Many operating systems manage physical memory by paging a 4 KB page. Therefore, the number of entries in the virtual address translation table for virtual to physical increases along with the size of the memory footprints. This cause a decrease in the translation lookaside buffer (TLB) hit ratio, resulting in the performance degradation of the application. To address this problem, we propose the implementation of physical memory management with two page sizes: 4 KB and 4 MB. This allows us to expand range of addresses to be translated by a single TLB entry, thereby improving the TLB hit rate. This paper describes the design and implementation of the physical memory management mechanism that manages physical memory using two page sizes on The ENduring operating system for Distributed EnviRonment (Tender OS). Our results showed that when the page size is 4 MB, the processing time of the memory allocation can be reduced by as much as approximately 99.7%, and the processing time for process creation can be reduced by as much as approximately 51%, and the processing time of the memory operation could be reduced by as much as 91.9%. |
発行日 | 2021-08-08 |
出版物タイトル | Advances in Networked-Based Information Systems|Lecture Notes in Networks and Systems |
巻 | 313巻 |
開始ページ | 238 |
終了ページ | 248 |
ISBN | 978-3-030-84912-2 |
言語 | 英語 |
著作権者 | © The Author(s), under exclusive license to Springer Nature Switzerland AG 2022 |
論文のバージョン | author |
DOI | 10.1007/978-3-030-84913-9_22 |
フルテキストURL | Mitigation_of_Kernel_Memory_Corruption_Using_Multiple_Kernel_Memory_Mechanism.pdf |
---|---|
著者 | Kuzuno, Hiroki| Yamauchi, Toshihiro| |
キーワード | Memory corruption kernel vulnerability system security operating system |
発行日 | 2021 |
出版物タイトル | IEEE Access |
巻 | 9巻 |
出版者 | Institute of Electrical and Electronics Engineers (IEEE) |
開始ページ | 111651 |
終了ページ | 111665 |
ISSN | 2169-3536 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
論文のバージョン | publisher |
DOI | 10.1109/access.2021.3101452 |
関連URL | isVersionOf https://doi.org/10.1109/access.2021.3101452 |
フルテキストURL | fulltext20220131-2.pdf |
---|---|
著者 | Kanaya, Nobuhiko| Kuroda, Shinji| Kakiuchi, Yoshihiko| Takeda, Sho| Kikuchi, Satoru| Noma, Kazuhiro| Yoshida, Ryuichi| Umeda, Yuzo| Teraishi, Fuminori| Nishizaki, Masahiko| Kagawa, Shunsuke| Fujiwara, Toshiyoshi| |
キーワード | Gastric cancer D2 lymphadenectomy Suprapancreatic lymphadenectomy Posterior hepatic plexus Distal gastrectomy |
備考 | This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s00423-022-02437-4| |
発行日 | 2022-1-12 |
出版物タイトル | Langenbeck's Archives of Surgery |
巻 | 407巻 |
号 | 2号 |
出版者 | Springer Science and Business Media LLC |
開始ページ | 871 |
終了ページ | 877 |
ISSN | 1435-2443 |
NCID | AA11211080 |
資料タイプ | 学術雑誌論文 |
言語 | 英語 |
OAI-PMH Set | 岡山大学 |
著作権者 | © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022 |
論文のバージョン | author |
PubMed ID | 35022835 |
DOI | 10.1007/s00423-022-02437-4 |
Web of Science KeyUT | 000741939500003 |
関連URL | isVersionOf https://doi.org/10.1007/s00423-022-02437-4 |