Comparison between predicted and measured resting energy expenditures in Korean male collegiate soccer players

이시형,Kuniko Moto,오태웅,Motoko Taguchi 한국운동영양학회 2022 Physical Activity and Nutrition (Phys Act Nutr) Vol.26 No.3

[Purpose] This study aimed to evaluate the differences between predicted resting energy expenditure (REE), using fat-free mass (FFM)-based prediction equations, and measured REE in Korean male collegiate soccer players. [Methods] Fifteen male collegiate soccer players (18- 21 years) participated in this study. The REE measurements were conducted using the Douglas bag method. Body composition was measured by dual-energy X-ray absorptiometry (DXA). The differences between the measured REE and predicted REE, using the five FFM-based REE equations, were analyzed using the t-test, calculation of errors, regression analysis, and the Bland-Altman method. [Results] The Cunningham (1980) and ten Haaf and Weijs (2014) equations showed significantly overestimated REE (1,808 ± 99 kcal/d, p <0.01; 1,838 ± 103 kcal/d, p <0.01; respectively), but the Owen (1988), Taguchi (2011), and Kim (2015) equations’ estimations were not significantly different from the measured REE (1,589 ± 106 kcal/d, 1,640 ± 124 kcal/d, and 1,622 ± 68 kcal/d, respectively). The Taguchi equation gave the best prediction of REE with the lowest constant error (-6 ± 125) and effect size (-0.05), and a non-significant proportional bias (p = 0.95). [Conclusion] The Taguchi equation is recommended for predicting REE in Korean collegiate soccer players. The selection process of a REE-prediction equation must take into consideration the target population’s characteristics. Future studies are recommended to evaluate the validity of the different FFM-based REE-prediction equations in various Korean athletes.

Synthesis of carbon materials with extremely high pyridinic-nitrogen content and controlled edges from aromatic compounds with highly symmetric skeletons

Taguchi Taisei,Gohda Syun,Gotoh Kazuma,Sato Satoshi,Yamada Yasuhiro 한국탄소학회 2023 Carbon Letters Vol.33 No.4

Selective doping of pyridinic nitrogen in carbon materials has attracted attention due to its significant properties for various applications such as catalysts and electrodes. However, selective doping of pyridinic nitrogen together with controlling skeletal structure is challenging in the absence of catalysts. In this work, four precursors including four fused aromatic rings and pyridinic nitrogen were simply carbonized in the absence of catalysts in order to attain mass synthesis at low cost and a high percentage of pyridinic nitrogen in carbon materials with controlled edges. Among four precursors, dibenzo[f,h]quinoline (DQ) showed an extremely high percentage of pyridinic nitrogen (96 and 86%) after heat treatment at 923 and 973 K, respectively. Experimental spectroscopic analyses combined with calculated spectroscopic analyses using density functional theory calculations unveiled that the C-H next to the pyridinic nitrogen in DQ generated gulf edge structures with controlled pyridinic nitrogen after carbonization. By comparing the reactivities among the four precursors, three main factors required for maintaining the pyridinic nitrogen in carbon materials with controlled edges, such as (1) high thermal stability of the pyridinic nitrogen, (2) the presence of one pyridinic nitrogen in one ring, and (3) the formation of gulf edges including pyridinic nitrogen to protect the pyridinic nitrogen by the C-H groups on the gulf edges, were revealed.

RECTANGULAR FIELD OF VIEW DIGITAL GAMMA DAMERA GAMMA VIEW-D

Taguchi, M.,Tabuchi, H.,Aoki, E.,Moriyama, H. 대한핵의학회 1984 핵의학 분자영상 Vol.18 No.1

Zoledronic Acid Administration in Aggressive Castration-Resistant Prostate Cancer

Taguchi, Satoru,Fujimura, Tetsuya,Kume, Haruki,Homma, Yukio Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.12

Risk Factors for Clinical Metastasis in Men Undergoing Radical Prostatectomy and Immediate Adjuvant Androgen Deprivation Therapy

Taguchi, Satoru,Fukuhara, Hiroshi,Kakutani, Shigenori,Takeshima, Yuta,Miyazaki, Hideyo,Suzuki, Motofumi,Fujimura, Tetsuya,Nakagawa, Tohru,Igawa, Yasuhiko,Kume, Haruki,Homma, Yukio Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.24

Background: Adjuvant androgen deprivation therapy (ADT) is a treatment option for prostate cancer (PC) patients after radical prostatectomy (RP). Although it can achieve a good progression-free survival rate, some patients still develop clinical metastasis. We here investigated risk factors of clinical metastasis in post-prostatectomy patients who received immediate adjuvant ADT. Materials and Methods: We identified 197 patients with non-metastatic PC who underwent RP at our institution between 2000 and 2012, followed by adjuvant ADT. The associations of various clinicopathologic factors with clinical metastasis (primary endpoint) and cancer-specific survival (secondary endpoint) were assessed. Multivariate analysis was conducted using a Cox proportional hazards model. Median follow-up was 87 months after RP. Results: Nine (4.6%) patients developed clinical metastasis and six (3.0%) died from PC. Eight of nine metastatic patients had a pathologic Gleason score (GS) 9 and developed bone metastasis, while the remaining one had pathologic GS 7 and developed metastasis only to para-aortic lymph nodes. On multivariate analyses, pathologic GS ${\geq}9$ and regional lymph node metastasis (pN1) were independent predictors of clinical metastasis and pathologic GS ${\geq}9$ was an independent predictor of cancer-specific death. Conclusions: Pathologic GS ${\geq}9$ and pN1 were independent predictors of clinical metastasis in post-prostatectomy patients who received immediate adjuvant ADT. Furthermore, pathologic GS ${\geq}9$ was an indispensable condition for bone metastasis, which may imply that patients with GS ${\leq}8$ on adjuvant ADT are unlikely to develop bone metastasis.

Nrf2 in liver toxicology

Keiko Taguchi,Thomas W. Kensler 대한약학회 2020 Archives of Pharmacal Research Vol.43 No.3

Liver plays essential roles in the metabolismof many endogenous chemicals and exogenous toxicants. Mechanistic studies in liver have been at the forefront ofefforts to probe the roles of bioactivation and detoxicationof environmental toxins and toxicants in hepatotoxicity. Moreover, idiosyncratic hepatoxicity remains a key barrierin the clinical development of drugs. The now vast Nrf2 fieldemerged in part from biochemical and molecular studies onchemical inducers of hepatic detoxication enzymes and subsequentcharacterization of the modulation of drug/toxicantinduced hepatotoxicities in mice through disruption of eitherNrf2 or Keap1 genes. In general, loss of Nrf2 increases thesensitivity to such toxic chemicals, highlighting a centralrole of this transcription factor and its downstream targetgenes as a modifier to chemical stress. In this review, wesummarize the impact of Nrf2 on the toxicology of multiplehepatotoxicants, and discuss efforts to utilize the Nrf2response in predictive toxicology.

Inverse Faraday Effect Driven by Spin Chirality in Weak Ferromagnets

Katsuhisa Taguchi,Gen Tatara 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12

We theoretically study the inverse Faraday effect in weak inhomogeneous ferromagnets with noncoplanarmagnetic structures. The effect is driven by a spin chirality of the magnetic structure andgenerates a spin polarization, which is parallel or anti-parallel to the localized magnetic moments,the direction being determined by the helicity of light.

Currency Regime and Monetary Autonomy. Empirical Evidence Using Recent and Global Data from 1990 to 2007

Hiroyuki Taguchi 한국국제경제학회 2011 International Economic Journal Vol.25 No.3

This paper analyzes the exchange rate regimes from the perspective of monetary independence. To be specific, using recent and global data, we examine the sensitivity of domestic interest rates to the international interest rate, by conducting co-integration tests and by estimating the adjustment speeds through error-correction model, for different de facto currency regimes and for different types of capital markets. Our estimation results basically support the traditional views of ‘impossible trinity’, as far as the cases with open capital markets are concerned. The floating regime shows the less sensitivity of domestic interest rates to the international interest rate than the fixed regime does, which implies some capacity for domestic monetary autonomy under the floating regime. The cases with closed capital markets, on the other hand, include the cases showing high sensitivity of interest rates in some emerging market economies, which might imply the ‘fear of floating’ hypothesis.

Characterization of Microstructure and Mechanical Properties of High-Purity Iron Added with Copper

( O Taguchi ),( Su Yeon Lee ),( M Uchikoshi ),( M Isshiki ),( Chan Gyu Lee ),( S Suzuki ),( Vladimir S Gornakov ) 한국열처리공학회 2012 熱處理工學會誌 Vol.25 No.1

An influence of the addition of copper (0.5, 1.0 and 1.5 mass% Cu) on the microstructure and mechanical properties of high purity iron (99.998 mass%) was characterized. The microstructure and microhardness of high-purity iron based samples, which were rolled at room temperature and subsequently annealed, were investigated in this work. The microstructure of the samples has been observed by electron back scattering diffraction (EBSD) and the mechanical properties have been studied by using micro-Vickers hardness test. The results of microstructural observation showed that deformation band was formed in high purity iron by rolling at room temperature, and it was recovered by annealing up to about 900 K. The microhardness results showed that the softening of high-purity iron occurred by annealing up to about 900 K, while the hardness of iron added with about 0.5-1.5 mass% copper was kept over 100 Hv and at the early time of annealing reached a maximum. The hardness of iron added with a small amount of copper may be attributed to precipitation hardening as well as solution hardening. The orientation of crystal in recrystallized grain was almost same as that of deformed grain. (Received November 21, 2011; Revised December 28, 2011; Accepted January 19, 2012)

Design and Grasping Control of Rib-Reinforced Bending Soft Actuators by Vacuum Driven

R.Taguchi,Y.Sawada 제어로봇시스템학회 2021 제어로봇시스템학회 국제학술대회 논문집 Vol.2021 No.10

This paper is concerned with developing a soft robot hand consisting of three Rib-Reinforced Vacuum-Driven Actuators that perform tasks requiring flexibility in the same workspace as humans. Most of the conventional soft actuators are powered by compressed air, which is easy to obtain the output, however, there is a risk of rupture. In consideration of workers’ and products’ safety, vacuum-driven soft actuators were developed to avoid rupture. In order to prevent undesirable buckling due to atmospheric pressure, resin ribs are appropriately placed inside to enable bending motion by vacuum drive. This soft actuator generated a maximum force of about 2.9 N at its tip. Furthermore, the tip force is controlled by the force feedback PID control, which was established by using the pressure-force characteristic of the soft actuators and could be controlled for a mixture of step, linear, and sinusoidal waves as the reference force inputs. In the experiments of grasping, the soft robot hand was able to grasp workpieces of various materials and shapes, including a plastic bottle with water (0.535 kg). In addition, by introducing the pressure feedback control, the soft robot hand achieved to gently grasp the paper balloon without changing its shape.