이전에 합병증 없이 내시경 역행성 담췌관 조영술(ERCP)을 여러 번 시행받은 71세 남자 환자에게 내시경 삽입 중 식도 점막 파열이 발생하였다. 점막열상은 내시경클립(endoclip) 을 사용하여 성공적으로 봉합되었으나, 이 합병증으로 인해 식도암과 조기 위암이우연히 동시에 발견되었다. 십이지장경은 위장관, 특히 식도 관찰에 제약이 있기 때문에 임상적으로 중요한 병변을 놓칠 가능성이 있다. 따라서 점막 손상이나 천공을 예방하기 위해 내시경선단에 충분한 윤활제를 도포하는 것과 함께 ERCP 중 상부내시경 검사를 시행하는 것도 고려 되어야 한다. 어느 환자군에서 ERCP 중 상부내시경 검사가 유용할지에 대해서는 향후 대규모 연구가 필요할 것이다.

Root-lesion nematodes, Pratylenchus sp., are recognized as one of the most important plant parasitic nematodes. They infest various crop plants and cause severe root damages which lead to the yield loss of agricultural crops. There are 72 species recorded in the world, but 14 species in Korea. Soil samples were collected from chrysanthemum cultivars in various regions. Morphological and molecular diagnosis firstly recognized two species as Pratylenchus kumamotoensis and P. pseudocoffeae in Korea. Morphologically, P. kumamotoensis characterized by pharyngeal gland lobes overlapping with intestine dorsally. P. pseudocoffeae, which is similar with P. coffeae, but pharyngeal gland lobes are longer than P. coffeae. In molecular diagnosis, nucleotide sequences of D2-D3 region (700-800 bp) within 28S rDNA and ITS region including ITS1, 5.8S and ITS2 (700-1,000 bp) between 18S and 28S rDNA were determined from collected samples. NCBI database comparison of D2-D3 of P. kumamotoensis and P. pseudocoffeae were 99% similar with those of corresponding species, respectively. ITS of P. pseudocoffeae was 99% similar within species. ITS sequence of P. kumamotoensis was firstly determined in this study. Distribution of P. kumamotoensis was only reported in Japan but P. pseudocoffeae is present in Japan and USA. Here we firstly report the presence of these two species in Korea.

Inter-breed and individual variations in thoracic conformation often resulted in incorrect diagnosis during interpretation of canine thoracic radiographs. Therefore, it may be helpful to build a collection of normal thoracic radiographs of different breeds for useful reference. The aim of this study is to establish a normal canine thoracic radiograph database according to breed, age, and body weight. Medical records and thoracic radiographs of Veterinary Medical Center, Chungbuk National University were reviewed retrospectively. Normal thoracic radiographs of 170 dogs out of 640 patients who had thoracic radiographs were obtained. In 170 normal dogs, Maltese, Shih-tzu, Yorkshire Terriers, and Miniature Poodle were the most prevalent breeds, with 90 dogs. In this study, the normal canine thoracic radiograph database was established in the four breeds; it can be used as normal references for interpretation of canine thoracic radiographs.

In peer-to-peer (P2P) loan markets, as most lenders are unskilled and inexperienced ordinary individuals, it is important to know the characteristics of borrowers that significantly impact their repayment performance. This study investigates the effects and importance of borrowers’ past repayment performance track record within the platform to identify its predictive power. To this end, I analyze the detailed loan repayment data from two leading P2P lending platforms in Korea using a Cox proportional hazard, multiple linear regression, and logit models. Furthermore, the predictive power of the factors proxied by borrowers’ track records are evaluated through the receiver operating characteristic (ROC) curves. As a result, it is found that the borrowers’ past track record within the platform have the most important impact on the repayment performance of their current loans. In addition, this study also reveals that the borrowers’ track record is much more predictive of their repayment performance than any other factor. The findings of this study emphasize that individual lenders must take into account the quality of borrowers’ past transaction history when making a funding decision, and that platform operators should actively share the borrowers’ past records within the markets with lenders.

This study attempts to identify gender and age discrimination by individual lenders in P2P lending markets by analyzing empirical transaction data from multiple platforms including Moneyauction, Popfunding, and 8percent. To do this, the study investigates the effects and importance of a borrower’s gender and age on individual lenders’ preferences and a borrower’s actual repayment performance using multiple linear regression and relative weight analyses. As a result, no gender discrimination is found in the three Korean P2P lending markets, and such indiscrimination is rational, on the grounds that the borrower’s gender does not have a statistically significant impact on the lenders’ preferences as well as his/her actual repayment performance, and its relative importance is minimal. While, there marginally exists age discrimination against a borrower in the markets, and such ageism is likely to be irrational, on the grounds that the borrower’s age has a partly significant and minimally important impact on the lenders’ preferences, but has no significant and important impact on his/her repayment performance. For the first time, these findings help to clarify gender and age discrimination issues in the P2P lending market by identifying the rationality of individual lenders’ preferences to the borrower’s gender and age in the Korea.