the aim of this study was to examine whether formal and informal social activities are associated with a lower risk of depression. besides, we investigated which type of social activities may protect against late-life depression by gender using data from a population-based study of older korean adults.data for analysis were drawn from the 2010 korean longitudinal study of aging. study sample in...

BACKGROUND Korean ginseng (Panax ginseng) is one of the most important medicinal plants in the Orient. Among nine cultivars of P. ginseng, Chunpoong commands a much greater market value and has been planted widely in Korea. Chunpoong has superior quality "Chunsam" (1st grade ginseng) when made into red ginseng. METHODS A rapid and reliable method for discriminating the Chunpoong cultivar was ...

Sanghoon Ahn , Kyoji Fukao, and Hyeog Ug Kwon March 2005 (Abstract) Both Korea and Japan are leading exporting countries of advanced manufactured products, and the competitive and efficient manufacturing activities are important pillars of the affluence of the two economies. Yet, comparing the manufacturing sectors of the two countries in the 1990s brings to light a startling contrast in their ...

In recent years many nuclear power plants have adopted modern digital I&C technologies since they are expected to significantly improve their performance and safety. OPR1000 in Korea (Korean standard nuclear power plant), typically Ulchin 5 & 6 nuclear units, have adopted safetycritical digital systems due to the functional advantages of smart digital systems and the obsolescence of the traditi...

PURPOSE To investigate systemic factors associated with central serous chorioretinopathy (CSC). METHODS We retrospectively reviewed the medical records of 113 Korean patients who were diagnosed with CSC and who underwent history taking with a specialized questionnaire for CSC. They were matched for age and gender at a ratio of 1 : 3 to 339 normal controls. Normal controls were consecutively s...

Several plant disease resistance gene (R-gene) classes have been identified on the basis of specific conserved functional domains. Cloning of disease-resistance apple genes would be useful for breeding programs and for studying resistance mechanisms. We used a PCR approach with degenerate primers designed from conserved NBS-LRR (nucleotide binding site-leucine-rich repeat) regions of known R-ge...