• 한국어류학회지
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• 제27권2호
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• pp.86-94
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• 2015

멸종위기어류 여울마자의 생물학적 특성 및 복원을 위한 기초자료를 확보하기 위해 2013년 남강에서 채집하여 난 발생과정과 초기생활사를 연구하였다. 성숙란은 암컷에 Ovaprim을 주사 (0.5 mL/kg)하여 얻었으며 건식법으로 인공 수정시켰다. 성숙란은 약한 점착성을 가지며 밝은 청록색을 띤 분리침 성란이었으며, 난경은 $0.63{\pm}0.02mm$ (n=20), 포란수 (n=5)는 평균 $3,827{\pm}1,225$ (2,850~5,916)개였다. 수온은 $21{\pm}1^{\circ}C$에서 72시간 뒤에 부화하였으며, 부화 직후 전기 자어 크기는 전장 $2.79{\pm}0.04mm$ (n=10)였다. 부화 후 5일에는 전장 $4.10{\pm}0.07mm$ (n=10)로 난황을 모두 흡수하여 후기자어로 이행하였고 부화 30일째에는 전장 $9.74{\pm}0.24mm$ (n=10)로 모든 지느러미의 기조가 정수가 되어 치어기로 이행하였다. 부화 후 100일 후에는 전장 $27.00{\pm}1.94mm$ (n=10)로 체측반문과 외부형태가 성어와 유사한 모습을 보였다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2008년 추계학술발표대회 논문집
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• pp.173-178
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• 2008

The purpose of this study was to improve the understanding of housing experiences of the women in their 50's in Korean social-cultural context and to explore their housing trajectory. The grounded theory was adopted in this study to address the research questions. Data was collected through in-depth interviews with the seven women in their 50's. The major findings of this study are summarized as follows. First, the their housing experiences of childhood is characterized by emotional and affective memory, whose sub-categories are nature and large family. Second, the respondents are categorized into two types according to their tenure of their first house after marriage. the respondents who started the housing careers with rental housing tend to move more frequently than the one who procured homeownership at the early stage of life course. Third, the respondents are satisfied with their present housing, consider it as their final housing but most of them are ready to sell their present house and move to smaller or cheaper house when their children need to money to buy the house for marriage.

• 한국잠사학회:학술대회논문집
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• 한국잠사학회 2003년도 제46회 춘계 학술연구 발표회
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• pp.62-62
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• 2003

The Korean native firefly, P. rufa, is widely distributed in Korea and only at Tsushima in the case of Japan. P. rufa is known to occur in various habitats such as stream area, wet fields and mountain area. Development and life history of the Korean native firefly, Pyrocoelia rufa, were investigated throughout the indoor rearing. (omitted)

• 보험의학회지
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• 제26권
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• pp.21-30
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• 2007

ECG is included in certain medical examinations of insurance application, ECG has low specificity and sensitivity. So ECG is not usually used to diagnose specific diseases. But, ECG is not invasive and costs low. So ECG is usually used in underwriting. Actually in underwriting we meet various ECG patterns and diagnosises. Understanding of various ECG patterns is different between insurance medicine and clinical medicine. So We have to learn various ECG patterns and effects on mortality and morbidity. First considerations of ECG readings are age, sex, blood pressure, family history, smoking historyalcohol history and hyperlipidemia. These are predictors for possibility of disease. Also it is important to review recording ECG with proper skill. In this review I consider several ECG diagnosises that we meet frequently, which is, LVH, RVH, ST abnormalities, LBBS, RBBB, A-B blocks, several kinds of arrhythmia. We have to consider long term mortalities and morbidities of specific ECG patterns although applicants have no symptom and sign. And then we have to make underwriting manual according to specific ECG diagnosises and patterns and underwrite precisely ECG patterns according to insurance products. Nowadays coronary heart disease and other heart diseases are increasing in Korea. So we have to learn various ECG patterns and research mortalities and morbidities of abnormal ECG patterns. Also we have to apply to more broad, precise underwriting skills about ECG patterns and diagnosises.

• 대한한의학원전학회지
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• 제23권3호
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• pp.49-67
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• 2010

The actual name of Gogobong is Du-goe, also known as Dan-jung, his pseudonym. He is the author of "Uigasimbeop(醫家心法)", an abstract of his clinical pathology throughout his life and "Chwimopyeon(吹毛編)", a medical chart based on his researches. The chapter 25 Bangrons[二十五方論] is included within the text, which shows attempts on explaining diseases and treatments of the internal organs based on theories on the relations of generation and restriction of the five elements. Influenced by Joheonga(趙獻可), one of the well known Onbo(溫補) scholars-concerning the importance of warming and invigorating the body-of the Myeong-dynasty, his main treatments were forms of warming and invigorating the yang and physical debility, hence strengthen the primordial energy. "Uigasimbeop(醫家心法)" was later on renamed to "Samyeongsimbeop(四明心法)" by Yangseungryuk(楊乘六). The following paper deals on his life, publishment, distinct features of his medical science based on his epitaph and works.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2000년도 추계학술대회논문집A
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• pp.141-146
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• 2000

Crack closure and growth behavior of physically short fatigue cracks under random loading are investigated by performing narrow- and wide-band random loading tests for various stress ratios. The importance of the crack closure phenomenon is examined by predicting the growth lives of short cracks using obtained crack opening behavior. Artificially prepared two-dimensional, short through-thickness cracks are used. The crack opening load of short cracks is much lower under random loading than under constant-amplitude loading corresponding to the largest load cycle in a random load history. This result indicates that the largest load cycle in a random load history has an effect to enhance crack opening of short cracks. Most of the life prediction ratios are within the factor of 2 scatter band except several data at very short crack sizes, indicating that crack growth predictions based on the measured crack opening data are excellent. From the results obtained in this study, it can be concluded that crack closure is the primary factor governing fatigue crack growth of short cracks under random loading as well as under constant-amplitude loading.

• 건축역사연구
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• 제13권4호
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• pp.107-124
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• 2004

The purpose of this study is to understand underlying principle to form the U-type folk house in the northwestern part of Kangwha Island by viewpoint of inner residents. It is found that many factors other than climate are coincidentally affecting the shape of house; Resident's fixed thought like following geomancer' suggestion, seeking fortune, and locating house enclosed low site; Economic reason of uniting one house with two buildings and making small type by used timber from dismantled house; Centralizing life with small courtyard by reason of family type change from extended to nuclear; Influence from L or ㅁ type of upper class building at Seoul area. The method is thick description of culture with ethnographic method from cognitive anthropology: Observing the form and restoring residents' life with open-ended deep interview.

• The Korean Journal of Pain
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• 제32권2호
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• pp.69-78
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• 2019

Pain therapy often entails gastrointestinal adverse events. While opioids are effective drugs for pain relief, the incidence of opioid-induced constipation (OIC) varies greatly from 15% to as high as 81%. This can lead to a significant impairment in quality of life, often resulting in discontinuation of opioid therapy. In this regard, a good doctor-patient relationship is especially pivotal when initiating opioid therapy. In addition to a detailed history of bowel habits, patient education regarding the possible gastrointestinal side effects of the drugs is crucial. In addition, the bowel function must be regularly evaluated for the entire duration of treatment with opioids. Furthermore, if the patient has preexisting constipation that is well under control, continuation of that treatment is important. In the absence of such history, general recommendations should include sufficient fluid intake, physical activity, and regular intake of dietary fiber. In patients of OIC with ongoing opioid therapy, the necessity of opioid use should be critically reevaluated in terms of an with acceptable quality of life, particularly in cases of non-cancer pain. If opioids must be continued, lowering the dose may help, as well as changing the type of opioid. If these measures do not suffice, the next step for persistent OIC is the administration of laxatives. If these are ineffective as well, treatment with peripherally active ${\mu}$-opioid receptor antagonists should be considered. Enemas and irrigation are emergency measures, often used as a last resort.

• ALGAE
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• 제34권3호
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• pp.199-216
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• 2019

Platysiphon verticillatus and Punctaria glacialis are synonymized by mainly on the basis of shared genes, nine identical sequences. Our hypothesis is that synonymy is erroneous. We posit the many differences of biological features between the two species, their ecological preferences, and occurrences do not support synonymy. Arcticophycus (nov. gen.) is described and contains the new combination Arcticophycus glacialis. Asexual, vegetative, life histories are proposed. Novel reproductive structures are described including previously unknown features of thallus development in the life history of both species. Discovery of the novel Platysiphon cyst, and dual sporangia types in Arcticophycus, is critical in establishing a probable strategy for survival through the Arctic winter for each annual species. Pl. verticillatus is erect, tubular, ovoid to circular in X sections, flaccid, non-parenchymatous, light brown, 10-15 cm high with distinctive photosynthetic hairs in clusters or whorled on the upper one third of the thallus. A. glacialis is erect, planar, robust, parenchymatous, dark brown and hairs absent. The Halosiphon clade is named, consisting of four genera: Halosiphon, Platysiphon, Arcticophycus, and Stschapovia. Occurrence of these genera is identified. Emended are the genus Platysiphon, the family Platysiphonaceae and the order Stschapoviales.

• 한국어류학회지
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• 제26권1호
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• pp.17-24
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• 2014

한국 고유종인 큰줄납자루 Acheilognathus majusculus의 종 보존을 위한 기초 자료를 확보하기 위해 난 발생과 자어의 성장을 관찰하고 초기생활사 특성을 논의하였다. 수정란은 둥근 타원형으로 평균 장경이 2.12mm(2.08~2.18 mm), 단경이 1.86mm(1.80~1.98 mm)이며 담황색 난황을 가진 분리침성란이다. 개체 당 산란 수는 40~112개(평균 72개)였고 수정란은 수온 $18.0{\pm}1.0^{\circ}C$에서 수정 후 43시간 만에 부화하였다. 부화 직후 자어의 크기는 4.23mm이고 형태적으로 납자루속의 자어 특성을 공유하고 있으며 자어 시기의 S자 운동은 없었다. 부화 후 25일 경에 소화기관이 완성되고 외부 먹이를 먹을 수 있어 자연에서 조개로부터 부출하는 시기로 추정된다. 만 1년 후에는 재생산이 가능한 크기로 성장한다.