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Yano Yuichiro,Kanegae Hiroshi,Node Koichi,Mizuno Atsushi,Nishiyama Akira,Rakugi Hiromi,Itoh Hiroshi,Kitaoka Kaori,Kashihara Naoki,Ikeno Fumiaki,Tsuji Ichiro,Okada Kunio 한국역학회 2022 Epidemiology and Health Vol.44 No.-
OBJECTIVES: Using a dataset from a survey on national health and productivity management, we identified health and productivity factors associated with organizational profitability. METHODS: The Ministry of Economy, Trade and Industry conducted an annual survey on Health and Productivity Management between 2014 and 2021. We assessed the associations of organizational health and productivity management using survey questions collected in 2017 and 2018, and the rate of change in profits from 2017 and 2018 to 2020. We identified factors associated with organizational profitability using eXtreme Gradient Boosting, and calculated SHapley Additive exPlanation (SHAP) values for each factor. RESULTS: Among 1,593 companies (n= 4,359,834 employees), the mean age for employees at baseline was 40.3 years and the proportion of women was 25.8%. The confusion matrix for evaluating model performance had accuracy of 0.997, precision of 0.993, recall of 0.997; and area under the precision-recall curve of 0.999. The most important factors related to an increase in corporate profits were the percentage of current smokers (SHAP value 0.121), per-employee cost for health services (0.084) and medical services (0.050); the percentage of full-time employees working in sales departments (0.074), distribution or customer service departments (0.054); the percentage of employees who sleep well (0.055); and the percentage of employees who have a habit of regular exercise within a company (0.043). CONCLUSIONS: The lifestyle health risk factors of employees and organizations’ management systems were associated with organizational profitability. Lifestyle medicine professionals may demonstrate a significant return on investment by creating a healthier and more productive workforce.
Novel Design Methodology Using Pass-Transistor Logic for Future VLSIs
Seki,Koichi,Yano,Kazuo 대한전자공학회 1997 ICVC : International Conference on VLSI and CAD Vol.5 No.1
Top-down design environment based on pass transistors was developed. This new logic design scheme is called LEAP (Lean Integration with Pass Transistors). Pass-transistor based cell library and synthesis tool were constructed. A pass-transistor based cell features its multiplexer fraction and the open-drain structure. It has the flexibility of transistor-level circuit design and compatibility with conventional cell-based design. A comparison with conventional design methodology, and techniques for further performance enhancement will be shown.
A Study on the Portable Space Optical Communication System for Disaster Communications
Keiichi YANO,Yoshihisa TAKAYAMA,Hiroo KUNIMORI,Koichi GYODA 대한전자공학회 2015 ITC-CSCC :International Technical Conference on Ci Vol.2015 No.6
An examination is made to simplify the existing optical transmitter and receiver for the realization of the portable space optical communication system. In the proposed system, a high-precision tracking mechanism of the receiver is reduced for the simplification. In addition, pointing is performed based on the GPS location information to reduce the optical beacons capture mechanism. Both irradiation angle error of atmospheric propagated laser and positioning error of GPS are executed, and the data transmission speed is derived from the estimated result of the diameter of the photodetector which can include these errors.
Atsushi Nanashima,Masahide Hiyoshi,Naoya Imamura,Koichi Yano,Takeomi Hamada,Takashi Wada,Takahiro Nishida,Kazuyo Tsuchiya,Fumiaki Kawano,Shinsuke Takeno,Takuto Ikeda 한국간담췌외과학회 2018 Annals of hepato-biliary-pancreatic surgery Vol.22 No.4
Backgrounds/Aims: The present study analyzed the postoperative outcomes in patients who underwent hepatectomy or pancreatectomy, with a history of intra-abdominal surgery involving other organs, to elucidate surgical efficacy. Methods: We examined the perioperative parameters in 28 patients who underwent hepatectomy (n=12) and pancreatectomy (n=16) after receiving prior abdominal organ resection (esophagectomy, n=2; gastrectomy, n=5; resection of small intestine, n=2; appendectomy, n=5; colorectal resection, n=9; hepatectomy, n=1; cholecystectomy, n=3; splenectomy, n=2, pancreatectomy ,right adrenectomy, nephrectomy and myoma uteri, n=1 each). Results: Age, gender, a history of comorbidities, and primary diseases were not significantly different between the groups. The present operation was predominantly indicated for liver metastases in all patients undergoing hepatectomy. Several diseases were detected in pancreaticoduodenectomy (PD) patients. Laboratory data were not significantly different between groups. Although operating time and blood loss during hepatectomy did not differ significantly between the groups, the operating time was significantly longer in patients undergoing PD compared with distal pancreatectomy (p<0.05). Red cell blood transfusion was most frequently used in patients who underwent major hepatectomy and PD (p<0.05). The prevalence of postoperative complications was not significantly different between groups. Hospital death was not observed and the period of hospital stay did not differ between groups. Conclusions: Carefully scheduled hepatectomy or pancreatectomy is safe even in cases with prior abdominal surgery under the present strategy.
Atsushi Nanashima,Masahide Hiyoshi,Naoya Imamura,Koichi Yano,Takeomi Hamada,Rouko Hamada,Kenzo Nagatomo,Makoto Ikenoue,Shuichi Tobinaga,Takeshi Nagayasu 한국간담췌외과학회 2019 Annals of hepato-biliary-pancreatic surgery Vol.23 No.2
Backgrounds/Aims: Preoperative nutritional status has been reported to influence patient outcomes after pancreatectomy. The Prognostic Nutritional Index (PNI) is a useful parameter to reflect the outcomes of patients undergoing gastrointestinal surgery. Therefore, the relationship between the PNI and clinicopathological factors, surgical data, and postoperative morbidity were retrospectively evaluated at two academic institutes in a cohort study. Methods: Curative pancreatectomy was performed on 222 patients at the University of Nagasaki between 1995 and March 2015, and 101 at the University of Miyazaki between April 2015and March 2018. The PNI was calculated using preoperative albumin and total cholesterol levels. Results: The mean PNI in our series was 39.2±5.4 and the prevalence of PNIs less than 40 was observed in 134 patients (44%). The PNI was not significantly different between normal, hard, and fatty architecture of the pancreatic parenchyma. The PNIs were significantly negatively correlated with higher age (p<0.01), but not with gender, co-morbidity, or habits. The PNI was significantly correlated with levels of hemoglobin, prothrombin activity, choline esterase, total protein, albumin and cholesterol (p<0.01), and with postoperative total protein and albumin levels (p<0.05). Although the preoperative PNI tended to be lower in patients with total postoperative complications, no significant differences for each complication were observed. Conclusions: Although the preoperative PNIs reflect the perioperative nutritional status, its predictive usefulness for postoperative complications could not be significantly confirmed.
Atsushi Nanashima,Masahide Hiyoshi,Naoya Imamura,Koichi Yano,Takeomi Hamada,Kengo Kai,Takahiro Nishida,Yukako Uchise,Risa Sakamoto,Mayu Inomata 한국간담췌외과학회 2021 Annals of hepato-biliary-pancreatic surgery Vol.25 No.4
Backgrounds/Aims: It is known that preoperative nutritional status can influence patient outcomes after hepatectomy. Prognostic Nutritional Index (PNI) is a useful parameter to reflect patient outcomes undergoing gastro-intestinal surgery. The aim of this study was to retrospectively evaluate relationships of nutritional parameters, demographics, and surgical records with postoperative outcomes in a cohort study. Methods: Curative hepatectomy was performed for 182 patients at the University of Miyazaki between 2015 and 2018. Each preoperative level of albumin, prealbumin, lymphocyte, total cholesterol, or the comprehensively calculated Onodera’s PNI was examined as a nutritional parameter. Results: The mean PNI was 39.6 ± 5.1, with PNI below 40 observed in 91 (50.0%) patients. Nutritional parameters were not different among patients with various liver diseases. Serum albumin or prealbumin level was significantly correlated with each hepatic parameter (p < 0.01). Prealbumin and total cholesterol levels were significantly correlated with postoperative prothrombin activity (p < 0.05). Albumin or prealbumin levels and PNI were significantly lower in patients with posthepatectomy complications, particularly bile leakage in comparison those without such complications (p < 0.05). Multiple logistic analysis showed that albumin level was an independent risk factor for complications after hepatectomy (risk ratio [RR]: 1.33) and that lymphocyte count was an independent risk factor for bile leakage (RR: 1.28) (p < 0.05). The cut-off level of albumin was approximately 3.8 mg/dL and that of lymphocyte count was 1,320/㎣. Conclusions: Preoperative PNI reflected perioperative liver functional status. It was a predictive parameter for postoperative complications, particularly biliary leakage.