According to the original article, the refinement campaign of Korean language was initiated in 1945. In the same year, the way that Japanese vocabulary settled in Korean language was studied in ...periodic segments. From 1945 to present, it was proven that the assertion which is for complete exclusion of Japanese vocabulary in the refinement of Korean language is overwhelmingly dominant, despite the assertion from minority that partial acceptance of foreign elements ought to be embraced in the refinement campaign of Korean language. The critical analysis of refinement of Korean language until today, and search for direction henceforth are required. Thus,for understanding the system of modern Korean vocabulary and the correct refinement of Korean language, comprehending the actual condition of Japanes!e vocabulary in Korean vocabulary is assumed to be required.
The author is not in a position against the refinement campaign of Korean language, but in a position opposing to the assertion that refinement towards the vocabulary from a specific nation in a specific period. In the perspective of Language Nationalism, dealing with Japanese vocabulary creates the risk of misunderstanding the fundamental nature of the problem suggested. The original article suggests that after the refinement campaign of Korean language,accomplished i! n 1945, the frequency of import from Japanese vocabulary had decreased. About this matter, Jeong Daekyun(Tei Taikin) suggested that import has continued as of Liberation and being lasted until today. We are in the preparing process of establishing the theory of Jeong Daekyun(Tei Taikin), and finding actual evidence of it. KCI Citation Count: 2
A water purification plant does not have a filter-to-waste valve, and the lack of free space makes the installation of such a valve difficult. In this study, we tried to reduce particulate matter by ...laying sand under the activated carbon without installing additional facilities. As a result of laying the lower sand to reduce the leakage of granular activated carbon, it was possible to reduce the particulate matter by about 15–20 % compared to the granular activated carbon process alone. The operating head rose about 10–20 cm when sand was laid, but there was no sharp rise and it was considered to be acceptable on site. In addition, the bacterial activity in the granular activated carbon column immediately after backwashing was detected at a maximum of about 120 per 100 mL. Despite the low water temperature (below 15℃), bacteria that are uncommon in the sand-filtered water proliferate and act as biological activated carbon in the granular activated carbon process, but it was found that it decreased by about 20% when sand was laid under the activated carbon. Regarding backwashing, it was confirmed that the activated carbon and sand layers were well mixed during air washing and then well separated again during rinsing due to the difference in specific gravity between the activated carbon and sand. A result of this study is that, in order to reduce leakage particles from granular activated carbon, it is recommended to use sand with a commercially available sand size of 0.55–0.6 mm (uniformity coefficient of 1.4 or less) when laying sand under granular activated carbon with an effective size of 0.65 mm. KCI Citation Count: 0
We assessed plaque erosion of culprit lesions in patients with acute coronary syndrome in real world practice.
Culprit lesion plaque rupture or plaque erosion was diagnosed with optical coherence ...tomography (OCT). Intravascular ultrasound (IVUS) was used to determine arterial remodeling. Positive remodeling was defined as a remodeling index (lesion/reference EEM external elastic membrane area) >1.05.
A total of 90 patients who had plaque rupture showing fibrous-cap discontinuity and ruptured cavity were enrolled. 36 patients showed definite OCT-plaque erosion, while 7 patients had probable OCT-plaque erosion. Overall, 26% (11/43) of definite/probable plaque erosion had non-ST elevation myocardial infarction (NSTEMI) while 35% (15/43) had ST elevation myocardial infarction (STEMI). Conversely, 14.5% (13/90) of plaque rupture had NSTEMI while 71% (64/90) had STEMI (p<0.0001). Among plaque erosion, white thrombus was seen in 55.8% (24/43) of patients and red thrombus in 27.9% (12/43) of patients. Compared to plaque erosion, plaque rupture more often showed positive remodeling (p=0.003) with a larger necrotic core area examined by virtual histology (VH)-IVUS, while negative remodeling was prominent in plaque erosion. Overall, 65% 28/43 of plaque erosions were located in the proximal 30 mm of a culprit vessel-similar to plaque ruptures (72%, 65/90, p=0.29).
Although most of plaque erosions show nearly normal coronary angiogram, modest plaque burden with negative remodeling and an uncommon fibroatheroma might be the nature of plaque erosion. Multimodality intravascular imaging with OCT and VH-IVUS showed fundamentally different pathoanatomic substrates underlying plaque rupture and erosion.
During paranasal sinus X-ray examinations in children, the radiological technologist’s thyroid shield is often not implemented to shorten the examination time. This study measured the radiation ...exposure before and after the implementation of thyroid shielding by analyzing the difference in radiation exposure, the radiological technologist’s could receive depending on the actual thyroid shielding. In the left TLD, when thyroid shielding was not performed(N), the radiation exposure dose(mSv) was 2.869 for the depth doseHp(10) and 2.886 for the surface doseH(3), and when thyroid shielding was performed(Y), the Hp(10) was 0.033 and the H(3) was 0.034. In the right TLD, when thyroid shielding was not performed(N), the radiation exposure dose was 3.149 for Hp(10) and 3.137 for H(3), and when thyroid shielding was performed, the Hp(10) of (Y) was 0.013 and the H(3) was 0.015. The differences in the overall exposure dose measurement values are all statistically significant (p<0.05). The difference in radiation dose between when thyroid shielding was not performed and when thyroid shielding was performed was more than 99.2% in both cases, indicating a high radiation shielding rate. KCI Citation Count: 0
Acute myopericarditis is usually caused by viral infections, and the most common cause of viral myopericarditis is coxsackieviruses. Diagnosis of myopericarditis is made based on clinical ...manifestations of myocardial (such as myocardial dysfunction and elevated serum cardiac enzyme levels) and pericardial (such as inflammatory pericardial effusion) involvement. Although endomyocardial biopsy is the gold standard for the confirmation of viral infection, serologic tests can be helpful. Conservative management is the mainstay of treatment in acute myopericarditis. We report here a case of a 24-year-old man with acute myopericarditis who presented with transient effusive-constrictive pericarditis. Echocardiography showed transient pericardial effusion with constrictive physiology and global regional wall motion abnormalities of the left ventricle. The patient also had an elevated serum troponin I level. A computed tomogram of the chest showed pericardial and pleural effusion, which resolved after 2 weeks of supportive treatment. Serologic testing revealed coxsackievirus A4 and B3 coinfection. The patient received conservative medical treatment, including nonsteroidal anti-inflammatory drugs, and he recovered completely with no complications.
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