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RISS 인기검색어
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- 저자 : Beron, Reinaldo Isaacs (검색결과 3 건)
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Jang, Je-Ho,Beron, Reinaldo Isaacs,Ahn, Hye-Seong,Kong, Seong-Ho,Lee, Hyuk-Joon,Kim, Woo-Ho,Lee, Kuhn-Uk,Yang, Han-Kwang The Korean Gastric Cancer Association 2010 Journal of gastric cancer Vol.10 No.4
Purpose: The aim of this study was to determine proportions of upper third gastric cancer (UTG) among all gastric cancers and analyze clinicopathological features of the disease. Materials and Methods: The medical records of 12,300 patients who underwent gastric surgery between 1986 and 2006 at Seoul National University Hospital (SNUH) were retrospectively reviewed. Clinicopathological features of 1,260 patients with UTG and 9,929 patients with middle or lower third gastric cancer (MLG) were compared, and annual proportions of UTG were evaluated. Results: The proportion of patients with UTG rapidly increased from 2.6% in 1986 to 12.5% in 1992. However, linear regression analysis showed that the rate of increase was reduced (0.21%/year) after 1992 (12.5% to 14.2% from 1992 to 2006). Compared with the MLG group, the UTG group had a lower proportion of (22.3% vs. 39.7%, P<0.001) and a greater proportion of stage III/IV disease (39.4% vs. 31.7%, P<0.001). The UTG group also had larger tumors than the MLG group in stages I/II and III (3.5 cm/5.3 cm/6.5 cm vs. 3.2 cm/5.0 cm/5.8 cm, P=0.020/0.028 /<0.001), a higher proportion of undifferentiated cancer (63.1% vs. 53.7%, P<0.001), and less intestinal Lauren's type (38.8% vs. 47.4%, P<0.001). The 5-year survival rate of the UTG group was significantly lower than that of the MLG group in stages I/II and III (85.6%/63.1%/34.2% vs. 91.6%/ 69.2%/44.7%, P<0.001/0.028/0.006). Conclusions: The proportion of UTGs has increased over the last two decades at SNUH, but the rate of increase has been greatly reduced since 1992. The UTG group showed a poorer prognosis compared with the MLG group in stages I/II and III.
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박종태 ( Jongtae Park ),( Beron Facchini ),홍진건 ( Jingun Hong ),( Bernd Burgstaller ) 한국정보처리학회 2010 한국정보처리학회 학술대회논문집 Vol.17 No.2
General Purpose Graphic Processing Unit (GPGPU) computing is a technique that utilizes the highperformance many-core processors of high-end graphic cards for general-purpose computations such as 3D graphics, video/image processing, computer vision, scientific computing, HPC and many more. GPGPUs offer a vast amount of raw computing power, but programming is extremely challenging because of hardware idiosyncrasies. The open computing language (OpenCL) has been proposed as a vendor-independent GPGPU programming interface. OpenCL is very close to the hardware and thus does little to increase GPGPU programmability. In this paper we present how a set of digital camera image signal processing (ISP) filters can be realized efficiently on GPGPUs using OpenCL. Although we found ISP filters to be memory-bound computations, our GPGPU implementations achieve speedups of up to a factor of 64.8 over their sequential counterparts. On GPGPUs, our proposed optimizations achieved speedups between 145% and 275% over their baseline GPGPU implementations. Our experiments have been conducted on a Geforce GTX 275; because of OpenCL we expect our optimizations to be applicable to other architectures as well.
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Je-Ho Jang,Reinaldo Isaacs Beron,안혜성,공성호,Hyuk-Joon Lee,Woo-Ho Kim,Kuhn Uk Lee,Han-Kwang Yang 대한위암학회 2010 Journal of gastric cancer Vol.10 No.4
Purpose: The aim of this study was to determine proportions of upper third gastric cancer (UTG) among all gastric cancers and analyze clinicopathological features of the disease. Materials and Methods: The medical records of 12,300 patients who underwent gastric surgery between 1986 and 2006 at Seoul National University Hospital (SNUH) were retrospectively reviewed. Clinicopathological features of 1,260 patients with UTG and 9,929 patients with middle or lower third gastric cancer (MLG) were compared, and annual proportions of UTG were evaluated. Results: The proportion of patients with UTG rapidly increased from 2.6% in 1986 to 12.5% in 1992. However, linear regression analysis showed that the rate of increase was reduced (0.21%/year) after 1992 (12.5% to 14.2% from 1992 to 2006). Compared with the MLG group, the UTG group had a lower proportion of (22.3% vs. 39.7%, P<0.001) and a greater proportion of stage III/IV disease (39.4% vs. 31.7%, P<0.001). The UTG group also had larger tumors than the MLG group in stages I/II and III (3.5 cm/5.3 cm/6.5 cm vs. 3.2 cm/5.0 cm/5.8 cm, P=0.020/0.028 /<0.001), a higher proportion of undifferentiated cancer (63.1% vs. 53.7%, P<0.001), and less intestinal Lauren's type (38.8% vs. 47.4%, P<0.001). The 5-year survival rate of the UTG group was significantly lower than that of the MLG group in stages I/II and III (85.6%/63.1%/34.2% vs. 91.6%/ 69.2%/44.7%, P<0.001/0.028/0.006). Conclusions: The proportion of UTGs has increased over the last two decades at SNUH, but the rate of increase has been greatly reduced since 1992. The UTG group showed a poorer prognosis compared with the MLG group in stages I/II and III.
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