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문태일,윤영만 한국토양비료학회 2016 한국토양비료학회지 Vol.49 No.4
In order to compare phosphorus (P) behavior of livestock manure compost (LMC) and chemical fertilizer (CF) applied to the sea-reclaimed land soils, incubation experiments were conducted for five weeks. Four soils differing textural classes, sandy loam and clay loam, and electric conductivity (EC) value, high and low, were applied with CF and LMC. LMC was applied at the level of 0, 1, 2, and 3% on the soil weight basis and CF was applied at the same levels of P as LMC. The results showed that increase of P application rate of CF and LMC led to linearly increase available P2O5 and 0.01M CaCl2 extractable P contents regardless of soil texture and EC. However, 0.01M CaCl2 extractable P from soil applied with CF was significantly higher than with LMC. Correlation analysis between 0.01M-CaCl2 extractable P and fractionated P by different extraction methods showed that 0.01M-CaCl2 extractable P positively correlated with KCl-P (soluble and exchangeable P) and HCl-P (Ca and Mg bound P). However, NaOH-P (Fe and Al bound P and organic P) and residual P was adverse. The amount of NaOH-P significantly influenced to the amount of 0.01M CaCl2 extractable P of CF and LMC in the soils. The application of LMC at sandy loam soil could be carried out in the consideration of nutrient leaching and crop uptake.
문태일,이정한,추용식,배진건,김옥준,최성욱,조윤경 대한응급의학회 2004 大韓應急醫學會誌 Vol.15 No.5
P u r p o s e: This study was conducted to derive and validate a clinical prediction rule for blood cultures obtained in the emergency department. M e t h o d s: We conducted a retrospective chart review of patients with a fever who underwent blood cultures from August 2002 through July 2003. The student t-test, coefficient of correlation, ROC (receiver operatics characteristic) curve, and Chi-square statistics were used for the analyses. R e s u l t s: Included in the study were 108 patients, of whom 47 were men and 61 were women. The mean age was 4 5 . 3 0±26.21 years old. The most common diagnoses were pneumonia and acute gastroenteritis. The usefulness of blood cultures in the emergency department was statistically significant in patients with fever or with higher levels of band form. C o n c l u s i o n: We determined that blood cultures are uncommonly useful for febrile patients and that a need rule is needed for the use of blood cutures in the emergency d e p a r t m e n t