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Ultrasound imaging for inguinal hernia: a pictorial review
Wei-Ting Wu,Ke-Vin Chang,Chih-Peng Lin,Chi-Chuan Yeh,Özçakar Levent 대한초음파의학회 2022 ULTRASONOGRAPHY Vol.41 No.3
Inguinal hernia is the most prevalent type of abdominal wall hernia. Indirect inguinal hernia is twice as common as direct inguinal hernia. Computed tomography and magnetic resonance imaging can be used to evaluate inguinal hernia, but these modalities are greatly limited by their cost and availability. Ultrasonography has emerged as the most convenient imaging tool for diagnosing inguinal hernia due to its advantages, such as portability and absence of radiation. The present pictorial review presents an overview on the use of ultrasonography in the evaluation of inguinal hernia with a particular emphasis on the regional anatomy, relevant scanning tips, identification of subtypes, postoperative follow-up, and diagnosis of pathologies mimicking inguinal hernia.
Wu, Ting-Feng,Zhang, Wei,Su, Zuo-Peng,Chen, San-Song,Chen, Gui-Lin,Wei, Yong-Xin,Sun, Ting,Xie, Xue-Shun,Li, Bin,Zhou, You-Xin,Du, Zi-Wei Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.10
UHRF2 is a member of the ubiquitin plant homeo domain RING finger family, which has been proven to be frequently up-regulated in colorectal cancer cells and play a role as an oncogene in breast cancer cells. However, the role of UHRF2 in glioma cells remains unclear. In this study, we performed real-time quantitative PCR on 32 pathologically confirmed glioma samples (grade I, 4 cases; grade II, 11 cases; grade III, 10 cases; and grade IV, 7 cases; according to the 2007 WHO classification system) and four glioma cell lines (A172, U251, U373, and U87). The expression of UHRF2 mRNA was significantly lower in the grade III and grade IV groups compared with the noncancerous brain tissue group, whereas its expression was high in A172, U251, and U373 glioma cell lines. An in vitro assay was performed to investigate the functions of UHRF2. Using a lentivirus-based RNA interference (RNAi) approach, we down-regulated UHRF2 expression in the U251 glioma cell line. This down-regulation led to the inhibition of cell proliferation, an increase in cell apoptosis, and a change of cell cycle distribution, in which S stage cells decreased and G2/M stage cells increased. Our results suggest that UHRF2 may be closely related to tumorigenesis and the development of gliomas.
TING-TING ZHANG,TING-TING GUO,ZHI-PING WU,SI-WEI YANG,ZHOU-FENG WANG,FANG LIAO 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2013 NANO Vol.8 No.5
In this paper, a new simple approach has been developed for the preparation of α-Fe2O3 microspheres by a facile hydrothermal method using PVP as a surfactant. Uniform α-Fe2O3 microspheres could be routinely synthesized through solvothermal approach by controlling the PVP/FeCl3⋅6H2O ratio. The as-obtained α-Fe2O3 microspheres exhibit high efficiency on the decolorization of RhB aqueous solution in the presence of H2O2 at room temperature.
MANAGING INNOVATION PERFORMANCE: A SERVICE-DOMINANT LOGIC VIEW
Li-Wei Wu,Chung-Yu Wang,Ya-Ting Wu 글로벌지식마케팅경영학회 2014 Global Marketing Conference Vol.2014 No.7
Partnerships have become an important research topic. However, the amount of empirical attention devoted to determining how firms intensively co-produce with alliance partners to improve their innovation performance is lacking. In response to the growing importance of co-production in the partnerships, this study addresses how firms integrate their alliance partners as co-creators into the innovation process. Specifically, this study not only integrates the three dimensions of social capital and examines their separate effects on co-production but also incorporates the roles of absorptive capacity and self-efficacy and investigates their influences on innovation. That is, co-production may operate through absorptive capacity and self-efficacy to increase innovation because knowledge is exchanged and utilized and firms are willing to select challenging goals and remain firmly committed to fulfill them within the network. The proposed model is tested with a structural equation model(SEM). Findings indicate positive relationships between social capital and co-production. Moreover, co-production has positive effects on innovation, absorptive capacity, and self-efficacy. Absorptive capacity and self-efficacy enhance innovation. As such, we suggest that co-production should be considered explicitly in the management of a partnership and should be developed through mentioned above platform, encouraging and enabling both parties to work together for the implementation of innovation.
Deflection of Castellated Beams Subjected to Uniformly Distributed Transverse Loading
Wei-bin Yuan,Nan-ting Yu,Zhao-shui Bao,Li-ping Wu 한국강구조학회 2016 International Journal of Steel Structures Vol.16 No.3
This paper presents an analytical solution for determining the deflection of castellated/cellular beams with hexagonal/circular web openings, subjected to a uniformly distributed transverse load. The solution is derived using the principle of minimum potential energy. To validate the derived analytical solution, three-dimensional linear finite element analysis is performed using four-node shell elements built-in ANSYS software. Good agreement between the finite element result and the present analytical solution is demonstrated.
Wu, Chun-Wei,Lin, Kuan-Hung,Lee, Ming-Chih,Peng, Yung-Liang,Chou, Ting-Yi,Chang, Yu-Sen Korean Society of Horticultural Science 2015 원예과학기술지 Vol.33 No.6
The objective of this study was to predict the timing of nitrogen (N) demand through analyzing chlorophyll fluorescence (ChlF), soil-plant analysis development (SPAD), and normalized difference vegetation index (NDVI), which are positively correlated with foliar N concentration in star cluster (Pentas lanceolata). The plants were grown in potting soil under optimal conditions for 30 d, followed by weekly irrigation with five concentrations (0, 4, 8, 16, and 24 mM) of N for an additional 30 d. These five N application levels corresponded to leaf N concentrations of 2.62, 3.48, 4.00, 4.23, and 4.69%, respectively. We measured 13 morphological and physiological parameters, as well as the responses of these parameters to various N-fertilizer treatments. The general increases in Dickson's quality index (DQI), above-ground dry weight (DW), total DW, flowering rate, ${\Delta}F/Fm$', and qP in response to treatment with 0 to 8 mM N were similar to those of SPAD, NDVI, and Fv/Fm. Consistent and strong correlations ($R^2$= 0.60 to 0.85) were observed between leaf N concentration (%) and SPAD, NDVI, ${\Delta}F/Fm$', and above-ground DW. Validation of leaf S PAD, NDVI, and ${\Delta}F/Fm$' revealed that these vegetation indices are accurate predictors of leaf N concentration that can be used for non-destructive estimation of the proper timing for N-solution irrigation of P. lanceolata. Moreover, irrigation with 8 mM N-fertilizer i s recommended w hen leaf N concentration, SPAD, NVDI, and ${\Delta}F/Fm$' ratios are reduced from their saturation values of 4.00, 50.68, 0.64, and 0.137%, respectively.
Rock wool wastes as a supplementary cementitious material replacement in cement-based composites
Wei-Ting Lin,An Cheng,Ran Huang,Yuan-Chieh Wu,Ta-Yuan Han 사단법인 한국계산역학회 2013 Computers and Concrete, An International Journal Vol.11 No.2
The use of rock wool waste, an industrial by-product, in cement-based composites has positive effects on the environment because it reduces the problems associated rock wool disposal. The experiments in this study tested cement-based composites using various rock wool waste contents (10, 20, 30 and 40% by weight of cement) as a partial replacement for Portland cement in mortars. The pozzolanic strength activity test, flow test, compressive strength test, dry shrinkage test, absorption test, initial surface absorption test and scanning electron microscope observations were conducted to evaluate the properties of cement-based composites. Test results demonstrate that the pozzolanic strength activity index for rock wool waste specimens is 103% after 91 days. The inclusion of rock wool waste in cement-based composites decreases its dry shrinkage and initial surface absorption, and increases its compressive strength. These improved properties are the result of the dense structure achieved by the filling effect and pozzolanic reactions of the rock wool waste. The addition of 30% and 10% rock wool wastes to cement is the optimal amount based on the results of compressive strength and initial surface absorption for a w/cm of 0.35 and 0.55, respectively. Therefore, it is feasible to utilize rock wool waste as a partial replacement of cement in cement-based composites.