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신문지를 이용하여 제조한 Potassium-Cyanoethylcellulose의 수분흡수력 및 시금치의 생육에 미치는 영향
김석균,김경제 동국대학교 산업기술환경대학원 1998 산업기술논총 Vol.4 No.-
This study was carried out to investigate the effects of potassium-cyanoethylcellulose(K-CEC), which is a natural polymer derivate, and polyacrylamide(PAM), which is a synthetic polymer, on growth of spinach under controlled environment biotron. Effects of KOH, acrylonitrile, and reaction temperature on water absorbing capacity of K-CEC were examined. Water absorbing capacity of K-CEC added with 40㎖ of 30% KOH and 9g of acrylonitrile was the highest at room temperature. PAM and K-CEC treatments showed higher early growth characteristics of spinach, number of leaves, leaf length, and leaf width than control. PAM and K-CEC treatments increased the vegetative yields of spinach, also. It would be need to make super absorbent polymers which possessed with higher water absorbing capacity in the future.
응급의료센터에서 시행된 급성담관염 환자의 컴퓨터단층촬영 소견: 패혈증 군과 비 패혈증 환자 군의 비교
김석균,이종석,최한성,홍훈표,고영관,권오영 대한응급의학회 2010 대한응급의학회지 Vol.21 No.4
Purpose: We undertook this study to evaluate the significance of differences in computed tomography (CT) findings between septic and non-septic acute cholangitis patients. Methods: One hundred seventy two patients were enrolled in our study. Inclusion criteria for patients were a final diagnosis of acute calculous cholangitis. Patients were divided into two groups: those who had sepsis and those that did not. The two patient groups were compared in order to investigate clinically important CT findings in acute cholangitis with and without sepsis. We also compared signs,symptoms, and laboratory findings between the groups. A p-value <0.05 was considered to be statistically significant. Results: Of the CT findings in acute cholangitis, the presence of intrahepatic duct dilatation (p<0.05), pancreatic duct dilatation (p<0.05), and pancreatitis (p<0.05) were more frequently found in the septic patient group. Septic patients showed fever (p<0.05) and chill (p<0.05) more often as presenting symptoms. Platelet count (p<0.05), segmented neutrophil portion (p<0.001), creatinine (p<0.05), and bicarbonate level (p<0.005) were significantly different in laboratory tests. Conclusion: Acute cholangitis patients with sepsis have more clinically important findings on CT, such as the presence of intrahepatic duct dilatation, pancreatic duct dilatation,and pancreatitis. Emergency physicians should focus on these findings and manage patients more urgently when these findings are present in acute cholangitis.