청소년의 인터넷 중독 정도에 따른 정신과적 공존질환 및 행동 양상에 관한 연구

이준영(June-Young Lee),박이진(E-Jin Park),조근호(Keun-Ho Joe),채숙희(Suk-Hi Chai),김성벽(Sung-Byuk Kim),이창욱(Chang-Uk Lee),김대진(Dai-Jin Kim) 한국중독정신의학회 2010 중독정신의학 Vol.14 No.1

Objectives:This study aimed to clarify the differences in psychiatric comorbidities and, behavioral patterns correlating with the severity of Internet addiction in adolescents. Methods:We assessed 321 adolescents recruited from an Internet rescue school, psychiatric outpatients, and 4 schools in Seoul and Gyeonggido. We divided them into a non-addicted group, a potential-risk group, and a high-risk group according to Young’s Internet Addiction Test (IAT). We evaluated their psychiatric comorbidities and behavioral patterns via psychiatric clinical interview, the Children’s Depression Inventory (CDI), the State-Trait Anxiety Inventory (STAI), and a self-report questionnaire about behavioral pat-terns. Results:There were significant differences in CDI and STAI scores among the 3 groups. The IAT, CDI, and STAI scores correlated positively with each other. There were differences in psychiatric comorbidity distributions between the potential-risk and high-risk groups, but only “other mood disorder” showed a significant difference. There were also significant differences in behavioral patterns among the 3 groups. Conclusion:This study suggests that there are psychiatric comorbidity and behavioral pat-tern differences according to Internet addiction severity in adolescents. We expect further studies will reveal more profound understandings of these relationships.

Modification of Optical and Mechanical Surface Properties of Sputter-Deposited Aluminum Thin Films through Ion Implantation

Kang, Tae June,Kim, Jeong-Gil,Lee, Ho-Young,Lee, Jae-Sang,Lee, Jae-Hyung,Hahn, Jun-Hee,Kim, Yong Hyup 한국정밀공학회 2014 International Journal of Precision Engineering and Vol.15 No.5

Aluminum (Al) thin films are used widely as an electronic material in a variety of applications because of their high conductivity, optical reflectance and low cost. In the present study, helium (He) and nitrogen (N2) ions were implanted in sputter-deposited Al thin films with different doses and energies, and the changes in the film properties, such as the surface roughness, optical reflectance, hardness and Young's modulus, were investigated. The results showed that the implantation of both ions smooth the surface of Al thin films by decreasing the hillock density, resulting in low global surface roughness. In particular, in the case of He ion implantation, the moderated degradation of optical reflectance was observed compared to the film implanted with nitrogen ion. On the other hand, excessive ion implantation increased the local (short-range) surface roughness, which deteriorated the optical reflectance of the Al films. The continuous stiffness measurement technique in nano-indentation showed that ion implantation increased the hardness near the surface. He ion implantation hardened the surface of the Al thin film, and almost 2 times higher surface hardness was achieved with an ion dose of $10^{18}ions/cm^2$ at 40 KeV.

식품 기준·규격의 합리적 관리 ·운영에 관한 연구(Ⅰ) : 두부,식용유지, 전분의 분말상 원료에 관하여 Powdered marerials of Tofu, Edible oil, Starch

김희연,홍진환,박혜경,한상배,박종석,이은주,이정성,송경희,최은희,최영준,소경아,성영제,이주엽 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-

본 연구는 분말상 원료(전분, 대두분)의 저장유통시 품질변화를 건전성과 안전성 측면에서 검토하여 식품의 기준 ·규격 설정f.」 합지적으로 반영하고자 하였다. 전분과 패두분의 이물을 검사하고, 2종 대두분(중국산, 미국산)을 ?0일간 IS'c와 30t에 저장하면서 성상, 수분, 산가, 과산화물가, 지방산 조성,아플라톡신 BB의 생성여부를 분석하였다. 중국산 대두분 30'』 저장군에서 50일 이후 곰팡이가 발생한 것 이외에 모든 시료에서 양호한 성상을 나타내었고, 전분과 대두닥 모든 시료에서 이물은 검출되지 않았다. 산가는 중국산과 미국산 시료간에 편차를 보여 증국산 30"C, 50일 저장시료에서 약 10배끙도 증가하였고, 과산화물가는 저장 90일후 15'E 저장군은 약 2.3배, 30'c 저장군은 3배정도 증가하였다. 대두분의 주요 지방산은 linoleic acidf18. 2), oleic acid(18 : 1), palmitic acid(16 : 0)이었으며, 3개월 저장에 따른 지방산 함량의 변화는 미미하였다. 아플라톡신 B₁은 모든 시료에서 검출되지 않았다. The objective of this study was to investigate auality changes of type raw materials(starch, soy flour) during various storage conditions. Starchflour(source of China, U.S.A) were slfred under two temperature(15'C, 30'c) forSensory evaluation, (o.reign material test, moisture content, acid value, peroxide ualue,composition, aflatorin Bi were analyzed. China soy flour(stor·ed 30'f) was contaminated by fungj on 50 days. Except for soy flour contardnated by fungi, sensory characteristics were not changed and foreign mater;als were notdetected. Acid value of China soy flour(stored at 30'C, 90 days) was about 10 times higherlevel before storage and acid value was more influenced by source(China, USA). Peroxide valuewas in proportion with the storage period slightly. The major fatty acid of soy flour waslinoleic acid(18 . 2), an(3 the change of fatty acid composition was not observed. Aflatoxlrl Blwas not detected.

간세포암과 감별이 어려웠던 악성중피종 치험 1예

김선문,허원석,채경훈,강윤세,정재훈,김연수,박기오,문희석,이엄석,김석현,성재규,이병석,이헌영,신경숙,조준식,송인상,강대영 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

Malignant peritoneal mesothelioma is a rare neoplasm that arises from the mesothelium of a serosal cavity and is a rapidly fatal disease with a median survival of 4 to 12 months for untreated cases. Recently, we experienced a case with malignant peritoneal mesothelioma who was suspected hepatocelluar carcioma by abdominal CT scan and was confirmed by biopsy including immunohistochemical stain(calretinin) after surgery. We performed tumor excisions and wedge resection of the liver(segment Ⅷ)and inserted Tencoff catheter in abdominal cavity at 25th day of post-operation. We treated with intraperitoneal paclitaxel(25mg/m^(2)/day for 5 days) six courses monthly. She was well tolerable and is still living without any evidence of recurrence for 14th month of post-operation.

뇌혈관 협착 환자에서 SPM과 확률뇌지도를 이용한 기저/아세타졸아미드 SPECT의 정량적 분석법의 유용성

이호영,이동수,팽진철,오창완,조맹제,정준기,이명철 대한핵의학회 2002 핵의학 분자영상 Vol.36 No.6

목적: 뇌혈관질환에 있어서 뇌혈류와 뇌혈류예비능을 기저/아세타졸아미드 뇌혈류SPECT로 평가 가능하나 재관류 수술효과를 비교 평가하기 위해서는 정량적인 평가가 필요하다. 대상 및 방법: 12명의 환자(51±15세, 남:녀=6:6)의 수술 전후 기저 시와 아세타졸아미드 부하 뇌관류 SPECT를 SPM에서 공간정규화하고 소뇌의 계수를 기준으로 계수정규화한 후 확률뇌지도(statistical probabilistic anatomical map, SPAM)를 이용하여 부위별 혈류를 정량화하였다. 이 결과로부터 수술 전후 및 정상대조군(59±15세, 남:녀=10:11)과의 비교를 McNemar test와Mann-Whiteny test를 이용하여 비교하였다. 혈류예비능은 기저 시와 부하시의 차이를 기저 시 계수를 기준으로 백분율로 표현하였다. 결과: 수술 후 수술 부위의 기저 시와 아세타졸아미드 부하 시 혈류 그리고 혈류예비능 모두가 유의하게 향상되었다(p<0.05). 정상군과의 비교에 있어서는 기저 시 혈류는 정상군과 차이가 없을 정도로 호전되었으나, 아세타졸아미드 부하시 혈류와 혈류예비능은 수술 후에도 유의한 차이를 보였다(p<0.05). 혈류예비능은 주로 수술부위를 중심으로 향상되었다. 결론: SPM 및 SPAM을 이용하여 기저/아세타졸아미드 뇌혈류 SPECT의 수술 전후결과를 정량적, 객관적으로 쉽게 비교 평가할 수 있다. Purpose: While cerebral blood flow and cerebrovascular reserve could be evaluated with basal/acetazolamide Tc-99m-HMPAO SPECT in cerebrovascular disease, objective quantification is necessary to assess the efficacy of the revasculariztion. In this study we adopted the SPM method to quantify basal cerebral blood flow and cerebrovascular reserve on basal/acetazolamide SPECT in assessment of the patients who underwent bypass surgery for linternal carotid artery (ICA) stenosis. Materials and Methods: Twelve patients (51±15 years) with ICA stenosis were enrolled. Tc-99m-HMPAO basal/acetazolamide perfusion SPECT was performed before and after bypass surgery. After spatial and count normalization to cerebellum, basal cerebral blood flow and cerebrovascular reserve were compared with 21 age-matched normal controls and postoperative changes of regional blood flow and reserve were assessed by Statistical Parametric Mapping method. Mean pixel values of each brain region were calculated using probabilistic anatomical map of lobes. Perfusion reserve was defined as the % changes after acetazolamide over basal counts. Results: Preoperative cerebral blood flow and cerebrovascular reserve were significantly decreased in involved ICA territory, comparing with normal control (p<0.05). Postoperative improvement of cerebral blood flow and cerebrovascular reserve was observed in grafted ICA territories, but cerebrovascular reserve remained with significant difference with normal control. Improvement of the cerebrovascular reserve was most prominent in the superior temporal and the angular gyrus, nearest to the anastomosis sites. Conclusion: Using SPM quantification method on basal/acetazolamide Tc-99m-HMPAO SPECT, the cerebral blood flow and cerebrovascular reserve could be assessed before revascularization and so could the efficacy of the bypass surgery. (Korean J Nucl Med 2002;36;357-67)

韓國大陸棚의 境界劃定에 따른 大陸棚槪念의 再考에 관한 考察 : 黃海上의 大陸棚에 관한 새로운 提言을 위하여

李英峻 慶熙大學校 1980 論文集 Vol.10 No.-

Before 1945, the freedom of the high seas meant, among other things, that every state had the right to exploit the seabed and subsoil of the high seas. This right was shared with all other states; no state could claim an exclusive right to any part of the seabed or subsoil of the high seas. However, the law began to change when it became technologically and economically feasible to exploit oil deposits beneath the sea by means of off-shore oil wells. In 1945 President Truman of the USA issued a proclamation claiming that the USA had the exclusive right to exploit the seabed and subsoil of the continental shelf off the coast of the USA. The history of the continental shelf in the years after 1945 is a classic example of the formation of a new rule of customary law. The action of the USA created a precedent which other states followed - and in some cases tried to extend. Claims to exclusive rights to exploit the seabed and subsoil were copied, or at least not challenged, by other states, and thus gave rise to a new rule of customary law; claims to sovereignty over superjacent waters did not give rise to a rule of customary law, because they met with protest from other states. But recently many states have started to claim exclusive economic zones outside their territorial seas. And several states have already anticipated the outcome of the Conference by claiming an exclusive fishery zone of 200 mile. This article be attemped, it is assumed that the concept of a 200-mile economic zone will be adoped eventually by the Third Law of the Sea Conference and that, as proposed by the majority of the states, the coastal states jurisdiction over the natural resources in such a zone will be exclusive in relation to non-coastal state interests, Such a formulation would render inapplicable the system articulated in the 1958 Geneva Convention on the Continental Shelf. The newly defined concept of a 200-mile economic zone can be expected to have an immediate impact upon those states which have coast opposite each other within 400 miles and which have not yet come to agreement among themselves as to continental shelf boundaries. This is precisely the situation of the coastal states of the Yellow and East China Seas - China Japan and Korea. In attempting to determine their mutual shelf boundaries, thus far the countries have come to no accord. In deed, each insist on applying different principles. Japan has adopted the solution suggested in the Geneva Convention that the median line in a continuous continental shelf between two countries should be the point of division. China adheres to the "natural prolongation of land territory principle", which was articulated in the 1969 International Court of Justice judgment in the North Sea Continental Shelf Case. Finally, Korea has taken a stance which is a hybrid of both the Chinese and the Japanese approach.

초, 중학생 및 급식 담당 영양사를 대상으로 한 버섯의 인식 및 이용형태에 관한 연구

이종숙,이경아,주영철,임갑준,이재성 한국식생활문화학회 2004 韓國食生活文化學會誌 Vol.19 No.3

A study on the recognition on the mushrooms by elementary school pupils, middle school students and school dietitians were-carried out. The ways of cooking mushrooms by school dietitians were also investigated. Most students and dietitians highly recognized mushrooms as good food. The most favorite mushroom was Flammulina velutipes, the cooking of mushrooms with meat and the hot mushroom soup with meat(Jungol) being the most preferred cooking methods. School ditetitians like to use mushrooms in school lunch and generally use medium or high quality mushrooms. Students, however, do not tend to prefer mushrooms compared to other vegetables. Mushroom dishes that can promote the consumption by students are mushroom bulgogi, mushroom pizza, sweet and sour mushroom in the order.

온실에서 동양란인 심비디움 재배에 공생균의 효과에 관한 연구

이상선,이준기,이정우,박소영,백기엽 충북대학교 첨단원예기술개발연구센터 2000 연구보고서 Vol.5 No.-

The orchid symbiotic fungus (Tulsanella repens P-01; OSF) was cultured on the soil materials by solid culture and inoculated in the two varieties of GwanUm and SaGae of Cymbidium hybrids with the barks. The two varieties of the oriental orchid were measured after 12 months' cultivation under the conditions of greenhouse; fresh weight, numbers of bulb, and rate of dead bulb for an individual plant. The fresh weight of plants were measured to be different for the individual plant. The fresh weight of plants were measured to be different for the individual plants treated with the OSF or not, depending on the varieties, but the rates of dead bulb were significant, disregarding with the varieties. The roots of the plants treated were observed to be more health and heavier weight than those not treated. The bulbs of the plants not treated were measured to be dead at the rate of 20% for a year's cultivation. The roots of two varieties were also observed by naked eyes and by microscope; Several peletons were observed to be in the root cells in the individual plants treated with OSF, but not in the individual plants treated without the OSF. Further, the pathogenic fungal hyphae were observed to be in the roots under the dead bulbs of both varieties not treated; appessorium or hasutorium on the epidermal cells of root. The inoculation of OSF was speculated to stimulate the growth of plants by absorption of mineral nutrition and defense the invasions of soil pathogenic fungi for the cultivations of Cymbidium hybrids.

만성 요통증 환자에 대한 록소닌 (Loxoprofen sodium)의 임상적 효과에 대한 연구

이준규,김경태,오기영 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.1

We conducted a clinical effectiveness and safety of Loxoprofen sodium, a nonsteroidal antiinflammatory drug(NSAID) for the treatment of chronic low back pain. Loxoprofen sodiun 180 mg/day(60 mg three time daily) was administered to 30 patients with chronic low back pain associated with a range of arthritic disorders, for a period up to 4 weeks, and clinical efficacy was evaluated by objective and subjective methods. 4 weeks therapy, loxoprofen showed subjective improvements of 100%, 64.7% and 63.6% in patients with mild to moderate, moderate to severe, and severe lumbar pain etc, respectively. Objective and subjective improvements were significant after only 1 week therapy in patients with mild to moderate pain and after 4 weeks, over all intensities of pain were improved. The incidence of adverse effects over this study population was extremely low, affecting only 3.3% of patients, and were mild in nature and edematous change. Loxoprofen is thus a well-tolerated NSAID in the treatment of chronic lumbar pain.

척추관 협착증에 대한 연구 : 요추관 협착증 환자에서 협착 부위에 따른 수술적 치료의 결과 Results of the Operative Treatments by the Level of Lumbar Spinal Stenosis

이준규,안재성,양준영 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2

Spinal stenosis is any type of narrowing of the main spinal canal, nerve canal or foramina from structural abnormality of bony components. Posterior decompression only provide relief of pain and restoration of neurologic function, and simultaneous posterolateral fusion is needed for prevention of spinal instability after wide posterior decompression. The degree of decompression (focal or wide), instrumentation and bone graft is dependent to the level of stenosis and instability. The purpose of this study is to compare the operative results clinically and radiologically by the level of spinal stenosis. We reviewed 73 patients of lumbar spinal stenosis who had undergone operations with posterior decompression or posterolateral fusion with spinal instrumentation at our hospital, From January 1987 to October 1997. We classified the level of stenosis into one level, two level and multi-level(above three level) stenosis, and on the last follow up, radiological bony union, clinical results, and complications were compared. The following results were obtained. I. The one level was 42 cases(57.6%), two level 24 cases(32.9%), and multi-level stenosis 7 cases(9.6%) and the most common stenotic level was at LA-5, 31 cases(42.5%). 2. Posterior decompression only were carried out on 20 patients(27.4%), and simultaneous posterolateral fusion with instrumentation were 53 patients(72.6%), CD 4 cases, CCD 11 cases, PWB 2 cases, and Diapason 36 cases. 3. The radiologic union rate was 41 cases(97.6%) in one level, 22 cases(87.5%) in two level, 6cases(85.7%) in multi-level spinal stenosis. 4. The excellent or good clinical results(by the Kikaldy-Willis criteria) were 40 cases (95.2%) in one level, 22 cases(91.8%) in two level, 6 cases(85.7%) in multi-level spinal stenosis. 5. The postoperative complications such as infection, metal failure, neurologic deficit or death were 6 cases(14.3%) in one level, 4 cases(21%) in two level, 3 cases(44.3%) in multi-level stenosis.