• Economic and Environmental Geology
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• v.19 no.1
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• pp.1-18
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• 1986

A group of 16 $Zn+Pb{\pm}Ag$ deposits distributed in the Pyeongchang-Jucheon area, Kangwon-do, South Korea, were semi-regionally investigated. These deposits are contact metasomatic and/or hydrothermal replacement types hosted in the carbonate-dominated Cambrian Machari Formation and Ordovician Ibtanri Formation, and also in the carbonate interbeds of the Precambrian argillic metasediments. Comparing some key aspects of the individual deposits, it is found that the ore deposits hosted in the Machari and Ibtanri Formations are mostly of steeply-dipping chimneys with or without skarn minerals and are rich in Ag and Pb>Zn in metal grade whereas those occuring in the carbonate interbeds of the Precambrian argillic metasediments are gently-dipping conformable lenticular orebodies mostly with skarn minerals and are generally poor in Ag and Zn>Pb. The skarn mineralization in the area appears to have occurred during the lower Cretaceous (118.7Ma) to mid-Cretaceous (107.8Ma) time assumed from the K-Ar dates of the Dowon and Pyeongchang granites which are closely associated with the skarn ore deposits. The Rb/Ba/Sr ratios of these granites indicate that they are of strongly differentiated anomalous granites, and the Nb vs. Y and Rb vs. Y+Nb plots fall on the field of volcanic arc setting. The contact aureoles are zoned, giving the sequence in order of increasing distance from igneous contact: garnet-wollastonite, granet-wollastonite-clinopyroxene and garnet-clinopyroxene in such as the Pyeongchang and Yeonwol 114 areas. Electron microprobe analyses reveal that garnets and clinopyroxenes are generally low in Fe and Mn. Garnets are grossular to intermediate grandite except for those from the Ogryong exoskarn which are richer in andradite, pyrope and spessartine fractions. This indicates that the oxidation state of skarn-forming environment at Ogryong was higher than at the other deposits. Clinopyroxenes are mostly salitic except for those from the Ogryong exoskarn which involve considerable amounts of hedenbergite and johansenite fractions. The ${\delta}^{18}O$ value of Jurassic biotite granite at Ogryong is higher (+10.21‰) than that of Cretaceous one at Chodun (+8.41‰). The ${\delta}^{13}C$ values of carbonate rocks range from -0.89‰ to 0.68‰ and the ${\delta}^{18}O$ values range from +11.91‰ to + 19.34‰ indicating that these carbonate rocks are of marine origin. However, the ${\delta}^{13}C$ values of skarn calcite and vein calcite are -4.80‰ and -12.92‰, and the ${\delta}^{18}O$ values are +5.56‰ and +10.32‰, respectively, indicating that these calcites are of hydrothermal origin. The ${\delta}^{34}S$ values of sulfide minerals range from +4.4‰ to +8.7‰ suggesting that the sulfurs are of magmatic origin.

• Journal of The Korean Association For Science Education
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• v.19 no.1
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• pp.91-99
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• 1999

The researches related to students' preconceptions and conceptual change model have been reported that students' learning motivation is one of the key variable for the conceptual change. The effects of students learning motivations on conceptual changes were evaluated. Subjects of this study were 8th grade students. and they were divided into 2 groups. One group was taught by traditional teaching method, and the other group by concept change teaching model. After the intervention, learning motivations of the students were testified. The students of high motivation who were taught by concept change teaching model showed higher scores in the concept of chemical change than the students by traditional teaching method. But there was no difference in both groups of students who have low learning motivations. The learning motivations before the intervention. the motivations stimulated by classes. and the degree of concept understanding showed high correlation. The motivations stimulated by classes explain 23.3 % of the degree of concept understanding. The results seems to mean that students learning motivations contribute to the understanding of concepts. Especially confidence of learning as a subcategory of the learning motivation contributes significantly to the understanding of new concepts. In contrast, the traditional teaching methods and the teaching methods of concept change learning theory were not effective for the stimulation of students learning motivations.

• Proceedings of the Membrane Society of Korea Conference
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• 1996.06a
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• pp.91-120
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• 1996

경제발전과 더불어 산업의 많은 분야에서 순수 및 초순순의 사용이 증가하고 있으나, 환경오염에 의한 원수의 오염에 따라 순수 및 초순순제조의 장치비와 처리비용의 증가가 야기되고 있다. 현재 국내에는 화력, 원자력발전소를 비롯하여 열병합발전소, 석유화학공장, 제약회사, 전기 전자부품회사, 반도체회사 및 철강회사 등 많은 분야에서 순수 및 초순수 제조장치의 구성과 성능이 많은 차이를 나타내고 있다. 국내의 초순수 제조장치는 90% 이상이 이온교환수지를 사용하는 이온교환법과 UF, R/O System과 같은 Membrane을 사용하는 Membrane System을 병행하여 적용하고 있다. 국내 초순수처리 Plant에서는 통상 전처리 System과 1차 순수제조 System 및 초순수 System이 상호 연결되어 Plant가 구성 운영되고 있다. 전처리 System에는 응집침전, 여과 흡착, 살균 등이 적용되고 있으며 여과 System에 Membrane을 적용할 수 있으나 국내에서는 특별한 경우를 제외하고 대부분 전처리 여과 System에 Media Filter를 사용한다. 전처리 System도 순수처리 장치의 전처리로는 없어서는 안되는 System이지만 여기에는 전처리 System을 제외하고 국내에서 적용하고 있는 초순수처리 System의 공정현황과 각 System별 특징을 설명하고 있다. 초순순 System에는 요구 수질에 따라 다소 차이가 있지만 반도체 공업에서 사용되는 초순수 System이 이중 최고의 Grade로 반도체공업에서 적용되고 있는 System을 기준하였다. 특히 Membrane을 적용한 초순수제조 System이 증가하고 있어 R/O, ED, EDR, CDI, (EDI)와 같은 Membrane System의 특성과 원리를 검토하였다.대적으로 높은 산소확산계수와 물에 대해서는 낮은 투과도를 가져야 한다. 높은 산소확산계수는 반응을 빠르게 하는 잇점이 있으며 물에 대한 낮은 투과도는 센서내의 전해질 물질을 유지보호하는 역할을 한다. 분리막이 산소전극에 이용될 경우 높은 산소 확산계수 이외에도 적절한 기계적 강도, 열적 안정성 등이 요구된다. 몰입이 가능하여 임계치가 저하된 것으로 여겨진다. 또한 광학적 이득의 존재는 이 구조에 의한 극단파장 반도체 레이저다이오드의 실현 가능성을 나타내는 것이다.548 mL에 비해 통계학적으로 의의 있게 적었다(p<0.05). 결론: 관상동맥우회로 조성수술에서 전방온혈심정지액을 사용할 때 희석되지 많은 고농도 포타슘은 fliud overload와 수혈을 피하고 delivery kit를 사용하지 않음으로써 효과적이고 만족할 만한 심근보호 효과를 보였다.를 보였다.4주까지에서는 비교적 폐포는 정상적 구조를 유지하면서 부분적으로 소폐동맥 중막의 비후와 간질에 호산구 침윤의 소견이 특징적으로 관찰되었다. 결론: 분리 폐 관류는 정맥주입 방법에 비해 고농도의 cisplatin 투여로 인한 다른 장기에서의 농도 증가 없이 폐 조직에 약 50배 정도의 고농도 cisplatin을 투여할 수 있었으며, 또한 분리 폐 관류 시 cisplatin에 의한 직접적 폐 독성은 발견되지 않았다이 낮았으나 통계학적 의의는 없었다[10.0%(4/40) : 8.2%(20/244), p>0.05]. 결론: 비디오흉강경술에서 재발을 낮추기 위해 수술시 폐야 전체를 관찰하여 존재하는 폐기포를 놓치지 않는 것이 중요하며, 폐기포를 확인하지 못한 경우와 이차성 자연기흉에 대해서는 흉막유착술에 더 세심한 주의가 필요하다는 것을 확인하였다. 비디오흉강경수술은 통증이 적고, 입원기간이 짧고, 사회

• Journal of Technologic Dentistry
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• v.19 no.1
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• pp.91-111
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• 1997

An aim of this study is to find out influenced factors of satisfaction degree on the clinical practice for the dental technology student and it can be provided the basic necessary data for the educational planning of the curriculum for the clinical practice. The target of study are selected form 7 junior health college students and colleges are located in around seoul form 14 junior health college throughout the nation. The questionnaries were distributed between 24th Feb to 30th July in 1997 to the 100 dental technicians who finished clinical practice and entered profession in 1997. All collected data were analysed by using SPSS/PC, Technical Statistic, One-Way ANOVA, Ttest, Person Correnlation Coefficient, Chrobach Alpha Coefficient and the result of the study is follow. 1) The satisfaction degree were classificated as 7 aspect and overall average score was 3.042. During that period satisfaction of personal relation aspect(M=3.737) shows highest level. Satsfiaction of clinical parctice(M=3.571) shows as second, Satisfiaction of environment(M=3.028), Satisfaction of guidance(M=2.915), satisfaction of subject are ordered of their scores. According to above study satisfaction's degree of subject show lowest level. 2) According to the result of verification of study. general character of student and satisfiaction degree has not much relation with sex, location of college, religion, period for enrolling college, teaching method of clinical practice. But the result show similar relation with following items. Satisfaction if subject and satisfaction of clinical practice(P=0.000), place of clinical practice and satisfaction of clinical practice(P=0.002), Academic record of college and satisfaction of clinical practice(P=0.000). 3) The relation of satisfaction(Subject, method of teaching, environment, period, rating, personal relation) of clinical practice and age of investigation's target Older student show higher satisfaction(P=0.040). Also method of teaching, environments, period, rating, personal relation has similarities with satisfaction. Therefore student who has higher satisfaction of clinical practice they also have higher rate for subject, environment, period, personal relation. 4) The result fo investigation, most interesting subject was crown & bridge and most difficult factor was too many simple-works to the student. One of ideal factor was discussing with counselor before they choose place for clinical practice. Third grade and first semester is most efficient time for clinical practice and 8 week is proper period for clinical practice. Clinical practice is absilutory mecessary and we find out most student rated positively. However we need more specific study about satisfcation of each subject. Because it shows lowest level and we need more pay attention for planning of clinical practice.

• Tuberculosis and Respiratory Diseases
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• v.71 no.1
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• pp.15-23
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• 2011

Background: Gefitinib and erlotinib are useful, molecular targeted agents in patients with non-small-cell lung cancer (NSCLC) who failed previous chemotherapy. We compared the efficacy and toxicity of two drugs in patients with squamous cell lung cancer, most of whom are male smokers. Methods: We retrospectively reviewed the clinical information on patients with NSCLC who were treated with gefitinib or erlotinib treatment at Chonnam National University Hwasun Hospital between July 2002 and November 2009. The overall response rate (ORR), overall survival (OS) and progression-free survival (PFS) were compared between the two drugs. Results: A total of 182 (100 gefitinib vs. 82 erlotinib) of 584 patients treated by targeted agents had squamous histology. Of the 182 patients, 167 (91.7%) were male and 159 (87.4%) were smokers. The ORR and disease control rate (DCR) were 4.9% and 40.6%, and there was no significant difference between gefitinib and erlotinib (ORR, 5.0% vs 4.8%; p=0.970; DCR, 40.0% vs 41.4%; p=0.439). The median OS in the gefitinib group was 12.1 months, and that in the erlotinib was 12.7 months (hazard ratio [HR], 1.282; 95% confidence interval [CI], 0.771~2.134; p=0.339). The median PFS for the gefitinib group was 1.40 months, compared with 1.37 months for the erlotinib group (HR, 1.092; 95% CI, 0.809~1.474; p=0.564). Skin rash ${\geq}$grade 3 was more common in erlotinib (12.2%) than gefitinib (1.0%, p=0.003) groups. Conclusion: This retrospective study showed that the two drugs appear to have similar antitumor efficacy and toxicity except for skin rash.

• Journal of the Korean Dietetic Association
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• v.11 no.3
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• pp.341-352
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• 2005

This study was based on the information provided by 1,180 elementary school children (630 boys and 550 girls) of 5th or 6th grade in Changwon and Gimhae of Gyeongnam province. They were asked about perception and preference for rice foods by questionnaires. The purpose of this survey was to find the way of encouraging rice intake and preference which is currently getting lower because of increasing simple westernized eating habits, and to provide basic information needed for inheriting and improving our traditional rice-based dietary culture. The results are summarized as follows. Most of subjects (91.2%) thought that steamed rice is better than bread for own health. The reason why they chose to eat steamed rice was 'because it is good for health' (61.2%), and 'because it is staple food item that we eat everyday' (26.4%). Seventy one percent of girls and 52.7% of boys gave the answer 'because it is good for health' as the reason for eating steamed rice. The reasons for the importance of the rice-based dietary culture were 'because of its superior nutritional value' (40.8%), and 'because it is our traditional eating culture' (28.6%). While significantly more girls (42.9%) answered as 'because of its superior nutritional value', more boys (39.0%) answered as 'because it is our traditional dietary culture'. More boys (59.0%) preferred noodles than girls' (54.7%), and fruits were preferred more by girls than boys as substitution foods for steamed rice showing significant difference (p<0.01). They wanted rice product developed in the forms such as Ssalamyun (29.8%), Ssalmandoo (24.1%), rice noodles (20.6%), and rice bread (15.6%). The preference score on rice products of subjects was one dish meals (4.27) and drinks (4.26), snacks (3.72), convenience foods (3.61), and steamed rice (3.44) in order. Preferred food showing points over 4 were Ssalbap (plain steamed rice) (4.29) in steamed rice type food, Kimchi bokeumbap (4.56), Bokeumbap (4.55), Bibimbop (4.45), Omelet rice (4.44), Kimbap (4.42), Ddukkuk (4.33), Curried rice (4.33), Jajangbap (4.28), and Ddukmandookuk (4.24) in one dish meal type food, Samgak Kimbap (4.26) in convenience type food, Songpyun (4.48), Injulmi (4.18), Teokbokki (4.71), Ddukkochiguyi (4.46), and rice cookies (4.24) in snack type food, and Shikhye (4.61) and Misugaru (4.28) in drink type food. Based on these results, it may be said that elementary school children think the rice-based diet is good for health and this dietary culture should be inherited and developed not only in a traditional aspect but also in a nutritional aspect. Therefore, more studies are needed to develop various forms of rice food products and cooking recipes.

• Journal of Sasang Constitutional Medicine
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• v.10 no.2
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• pp.485-511
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• 1998

In orther to find the characteristics of each constitution, the examine of Kyung Hee medical center was diagnosed constitution, and resulted body measures and diagnosis. That was considered and the results are as follows 1. The obese patients is that there are the best many people(91.0%) to Taeumin. The frequency of Taeumin group is more than Soyangin group and Soeumin group. The degree of obesity grade is the highest in Taeumin. 2. The systolic blood & diastolic blood pressure of obese patients did not show any significant differences. Only, the obesity patients is the higher than nomal examine, without regard to Sasang constitution. 3. The hypertensive frequency of obese patients is that Taeumin group is more than Soyangin group and Soeumin group. there is not show any significant differences. specially, the hypertension of Soyangin group is caused by an ascending of diastolic pressure. 4. Glucose value of obese patients did not show any significant differences. generally, the frequency of Taeumin group is more than Soyangin group and Soeumin group. The diabetes of obese patients is the highest in Taeumin. 5. The serum lipids of obese patients did not show any significant differences. Total cholesterol, Triglyceride value of Taeumin group is more than Soyangin group and Soeumin group. HDL-cholesterol of obese patients is that Taeumin group is more than Soyangin group and Soeumin group. 6. The frequency of hyperlipidemia is the highest in Taeumin. 7. GOT, GPT of obese patients did not show any significant differences, but GGT is higher in Taeumin than Soyangin & Soeumin group. 8. Uric acid of obesity patients did not show any significant differences between Sasang constitution, but the value of obese patients is higher than nomal examine. The abnomality of Uric acid is higher in Taeumin than the other constitutions. The frequency of abnomality is the highest in Taeumin females. 9. Arteriosclerosis frequency of obese patients did not show any significant differences, the frequency of Sasang constitution is higher in Taeumin than Soyangin & Soeumin group. 10. Hemoglobin of obese patients did not show any significant differences, but Hematocrit is higher in Soyangin than Taeumin & Soeumin group. Anemia of obese patients did not show any significant differences. The frequency of anemia is higher in the females than the males. 11. BUN, creatinine of obese patients did not show any significant differences.

• Journal of Preventive Medicine and Public Health
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• v.9 no.1
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• pp.65-75
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• 1976

To compare the maternal health status between women in island and land, the study was conducted to adjacent land (kukdong) and island (kyonghodong) areas in Yosoo city during April 1976. The results obtained from 174 interviewee in island and 192 in land areas were the same as follow, 1. General characteristics of both area. Age: Land, group 20-29 year of age was the largest. Island, 30-39 year of age was the largest. Education; Low educated group, less than primary grade (land 88.6%, island 93.1%), was predominant in both area. Occupation of herself; agriculture and labor was the main occupation (land 50%, island 82.2%) in both area. Occupation of husband: labor and fishery was general (81.2%) in land, and agriculture and fishery was general (81.6%) in island. Duration of residence; Land, 25.0% being resided here more than 10 years. Island, 64.3% being resided here more than 10 years. 2. Marriage, Pregnancy, and Present children. Average age at marriage; Land, 20.7 years. Island, 20.9 years. Average frequency of pregnancy; Land, 4.4 times. Island, 4.3 times. Wastage of pregnancies: Land, 236 per 1000 pregnancies. Island, 151 per 1000 pregnancies. Wastage occupied by induced abortion; land, 73.5%. island, 60.5%. Number and sex of present children; Land, 3.3 per family, sex ratio 52.4 to 47.6. Island, 3.6 per family, sex ratio 53.3 to 46.7. 3. Prenatal and postnatal care. Prenatal consutation: Land, 16.1% received by doctor or midwife. Island 9.2% received by doctor or midwife. Complications during last pregnancy; Land, 46.6% complained. Island, 51.1% complained. Return to work within 1 week after delivery; Land, 40.6%. Island, 50.6%. 4. Delivery environment Home delivery; Land, 97.4% Island, 97.3%. Delivery attdended by non medical professions at home; Land, 80.2% Island, 93.7%. Solo home delivery; Land, 13.0%, Island, 12.9%. Delivery attended by layman without taking any disinfective preparations; Land, 48.1%, Island, 49.1%. Material mainly used to cut umbilical cord at home; Land, scissors (97.4%). Island, scissora (98.8%). Cord cutting material used without giving any disinfective preparations; Land, 79.9%, Island, 84.0%. Delivery sheets used at home; Cement bag paper (land 50.0%, island, 31.3%). Vinyl sheets (land,17.5%, island, 27.6%). News paper (land, 3.2%. island, 11.7%). No sheets (land 19.5%. island, 12.9%). etc. Maternal Meal; Seaweed soup with rice was the most general in both area. (land 95.3%, island, 91.4%).

• Journal of Science Education
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• v.35 no.1
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• pp.91-101
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• 2011

In this study, Jigsaw III cooperative learning strategy and traditional learning strategy have been applied to the 'electricity' chapter of grade 8 science textbooks to know the effects of learning strategy, gender, and GPA on the students' science achievement and science learning attitude of middle school female students in gender-separated classes. For this purpose, 143 students of 4 classes in separated classes were chosen from a middle school in Daegu. One female class and one male class were assigned to the experimental group and other female class and male class were assigned to the control group. Traditional learning strategy was applied to the control group and the Jigsaw III cooperative learning strategy was applied to the experimental group. Four worksheets for expert groups were used for 18 hours through 5 weeks. Both tests for science achievement and learning attitude were administered as pre and post test. The test results were analyzed through analysis of covariance(ANCOVA) as pre test score as covariant The overall conclusions of this study were as follows: The Jigsaw III cooperative learning has improved science achievement, especially on subjective-type questions, of female students and mid-lower level students. The Jigsaw III Cooperative Learning has also improved self-directed attitude toward science learning. Female students have expressed more positive opinion about the Jigsaw III cooperative learning.

• Journal of Hospice and Palliative Care
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• v.6 no.1
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• pp.45-50
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• 2003

Purpose : This study was conducted to develop primary assessment tools to evaluate the relationship between symptom prevalence and symptom distress in cancer patients of Korea. Methods : A total of 196 patients diagnosed with cancer admitted in 5 general hospitals from January, 6 to January, 20 in 2003, were entered into the study. These patients were asked to complete the MSAS (Memorial symptom assessment scale). We classified these answers into prevalence and distress and then scored them according to grade and frequency. Results : The five most prevalent symptoms were lack of energy (82.1%), dry mouth (73.5%), pain (73.5%), itching (72.4%), and feeling drowsy (68.9%). Among 24 common prevalent symptoms, the ten most distress the symptoms were dry mouth (2.11), itching (2.07), pain (2.03), lack of energy (1.98), difficulty sleeping (1.96), worrying (1.94), "I don't look like myself" (1.91), constipation (1.88), and difficulty concentration (1.76). Conclusion : These 10 symptoms had high prevalence and distress in cancer patients of Korea. We suggest these symptoms to be applied in developing the primary assessment tool in cancer patients.