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Chen Peng-Ciao,Chen Yu-Ju,Yang Chia-Chen,Lin Ting-Ti,Huang Chien-Chu,Chung Chi-Hsiang,Sun Chien-An,Chien Wu-Chien 대한남성과학회 2022 The World Journal of Men's Health Vol.40 No.3
Purpose: Some evidence suggests that male infertility increases the risk of cardiovascular diseases (CVDs). However, the evidence in Asian populations is relatively scarce. The aim of this study is to determine whether male infertility increases the risk of CVDs. Materials and Methods: We used inpatient and outpatient data for the years 2000 to 2015 from the Taiwanese Longitudinal Health Insurance Database. We enrolled 7,016 males over 18 years old and diagnosed with male infertility. Of these, 2,326 matched our inclusion criteria and were assigned to the study group. For each infertility patient, four comparison patients were frequency-matched by age and index date to form a control cohort comprising 9,304 patients. Cox proportional hazards analysis was used to estimate the association between male infertility and CVDs. Results: After a 15-year follow-up, the incidence rate of CVDs was higher in the infertility group than the control group (1,460.23 and 1,073.70 per 100,000 person-years, respectively). The Cox proportional hazards regression analysis revealed that the adjusted HR for CVDs was 1.472 for the infertility group (95% CI, 1.288–1.683; p<0.001) relative to the control group. The Kaplan–Meier analysis of the cumulative incidence of CVDs in the two groups showed that the cumulative risk curve for CVDs was significantly higher for the infertility group than the control group. Conclusions: This study shows that men with infertility have a higher risk of developing incident CVDs. In the future, healthcare providers should pay attention to these patients because of their higher health risks.
An integrate information technology model during earthquake dynamics
Chen, Chen-Yuan,Chen, Ying-Hsiu,Yu, Shang-En,Chen, Yi-Wen,Li, Chien-Chung Techno-Press 2012 Structural Engineering and Mechanics, An Int'l Jou Vol.44 No.5
Applying Information Technology (IT) in practical engineering has become one of the most important issues in the past few decades, especially on internal solitary wave, intelligent robot interaction, artificial intelligence, fuzzy Lyapunov, tension leg platform (TLP), consumer and service quality. Other than affecting the traditional teaching mode or increasing the inter-relation with users, IT can also be connected with the current society by collecting the latest information from the internet. It is apparently a fashion-catching-up technology. Therefore, the learning of how to use IT facilities is becoming one of engineers' skills nowadays. In addition to studying how well engineers learn to operate IT facilities and apply them into teaching, how engineers' general capacity of information effects the results of learning IT are also discussed. This research introduces the "Combined TAM and TPB mode," to understand the situation of engineers using IT facilities.
An integrate information technology model during earthquake dynamics
Chen-Yuan Chen,Ying-Hsiu Chen,Shang-En Yu,Yi-Wen Chen,Chien-Chung Li 국제구조공학회 2012 Structural Engineering and Mechanics, An Int'l Jou Vol.44 No.5
Applying Information Technology (IT) in practical engineering has become one of the most important issues in the past few decades, especially on internal solitary wave, intelligent robot interaction, artificial intelligence, fuzzy Lyapunov, tension leg platform (TLP), consumer and service quality. Other than affecting the traditional teaching mode or increasing the inter-relation with users, IT can also be connected with the current society by collecting the latest information from the internet. It is apparently a fashion-catching-up technology. Therefore, the learning of how to use IT facilities is becoming one of engineers’ skills nowadays. In addition to studying how well engineers learn to operate IT facilities and apply them into teaching, how engineers’ general capacity of information effects the results of learning IT are also discussed. This research introduces the “Combined TAM and TPB mode,” to understand the situation of engineers using IT facilities.
Flexural behavior of reinforced lightweight concrete beams under reversed cyclic loading
Chien, Li-Kai,Kuo, Yi-Hao,Huang, Chung-Ho,Chen, How-Ji,Cheng, Ping-Hu Techno-Press 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.52 No.3
This paper presents the results of an experimental investigation on the flexural behavior of doubly reinforced lightweight concrete (R.L.C.) beams tested under cyclic loading. A total of 20 beam specimens were tested. Test results are presented in terms of ductility index, the degradation of strength and stiffness, and energy dissipation. The flexural properties of R.L.C. beam were compared to those of normal concrete (R.C.) beams. Test results show that R.L.C. beam with low and medium concrete strength (20, 40MPa) performed displacement ductility similar to the R.C. beam. The ductility can be improved by enhancing the concrete strength or decreasing the tension reinforcement ratio. Using lightweight aggregate in concrete is advantageous to the dynamic stiffness of R.L.C. beam. Enhancement of concrete strength and increase of reinforcement ratio will lead to increase of the stiffness degradation of beam. The energy dissipation of R.L.C beam, similar to R.C. beam, increase with the increase of tension reinforcement ratio. The energy dissipation of unit load cycle for smaller tension reinforcement ratio is relatively less than that of beam with higher reinforcement ratio.
Chien-Hang Ni,Jing-Gung Chung,Po-Yuan Chen,Hsu-Feng Lu,Jai-Sing Yang,Hui-Ying Huang,Shin-Hwar Wu,Siu-Wan Ip,Chin-Tung Wu,Su-Yin Chiang,Jaung-Geng Lin,W. Gibson Wood 대한약학회 2012 Archives of Pharmacal Research Vol.35 No.5
Liver cancer is the most common form of cancer in Taiwan and it usually responds to chemotherapy. However, patients often have side effects to the chemotherapeutic drugs. Thus new agents are urgently required to treat liver cancer. Chrysophanol, one of the anthraquinone derivatives, was reported to inhibit some human cancer cell growth which may be due to the induction of apoptosis similar to other anthraquinone derivatives though such actions have not been reported. In the present study, we reported that chrysophanol inhibits cell growth in Hep3B liver cancer cells based on the following observations: 1) induc cell morphological changes; 2) decreased percentage of viable cells; 3) induced S phase arrest of cell cycle progression; 4) induced DNA damage as measured by comet assay and DAPI staining. Chrysophanolinduced cell death however, seems to be related to necrotic processes rather than typical apoptosis. Chrysophanol induced reactive oxygen species and Ca2+ production and decreased mitochondrial membrane potential (ΔΨm) and ATP levels in Hep3B cells. No effects were observed on known protein regulators of apoptosis such as Bax and Bcl-2. Chrysophanolinduced cell death took place independently of caspase-8 and -9. Based on our findings, we propose that chrysophanol reduces cellular ATP levels causing a drop in energy resulting in necrotic-like cell death.
Identification of an Antifungal Chitinase from a Potential Biocontrol Agent, Bacillus cereus 28-9
( Chien Jui Huang ),( Tang Kai Wang ),( Shu Chun Chung ),( Chao Ying Chen ) 생화학분자생물학회 2005 BMB Reports Vol.38 No.1
Bacillus cereus 28-9 is a chitinolytic bacterium isolated from lily plant in Taiwan. This bacterium exhibited biocontrol potential on Botrytis leaf blight of lily as demonstrated by a detached leaf assay and dual culture assay. At feast two chitinases (ChiCW and ChiCH) were excreted by B. cereus 28-9. The ChiCW-encoding gene was cloned and moderately expressed in Escherichia coli DH5α. Near homogenous ChiCW was obtained from the periplasmic fraction of E. coli cells harboring chiCW by a purification procedure. An in vitro assay showed that the purified ChiCW had inhibitory activity on conidial germination of Botrytis elliptica, a major fungal pathogen of lily leaf blight.
Wu, Chung-Hao,Chen, Chien-Jung,Lin, Yu-Feng,Lin, Shu-Ken Techno-Press 2021 Advances in concrete construction Vol.12 No.5
This study experimentally investigated the improvement of bond strength and durability of concrete containing high volume fly ash. Concrete mixtures made with 0%, 25% and 60% replacement of cement with class F fly ash were prepared. Water-binder ratios ranged from 0.28 to 0.72. The compressive, flexural and pullout bond strength, the resistance to chloride-ion penetration, and the water permeability of concrete were measured and presented. Test results indicate that except for the concretes at early ages, the mechanical properties, bond strength, and the durability-related chloride-ion permeability and water permeability of concrete containing high volume (60% cement replacement) fly ash were obviously superior to the concrete without fly ash at later ages of beyond 56 days. The enhanced bond strength for the high volume fly-ash concrete either with or without steel confinement is a significant finding which might be valuable for the structural application.