종 분포 모형을 이용한 구상나무림의 지속 및 쇠퇴에 관한 연구 - 전라남도 광양시 백운산을 중심으로 -

조선희 ( Seon Hee Cho ),박종영 ( Jong Young Park ),박정호 ( Jeong Ho Park ),이양근 ( Yang Geun Lee ),문이만 ( Lee Man Mun ),강상호 ( Sang Ho Kang ),김광현 ( Gwang Hyun Kim ),윤종국 ( Jong Guk Yun ) 한국산림과학회 2015 한국산림과학회지 Vol.104 No.3

The present study investigated the habitats of Korean fir trees (Abies koreana E. H. Wilson) on Mt. Baekwun (Baekwun-san), determined the current distribution, quantified the contribution of biological and nonbiological environmental factors affecting the distribution, derived actual and potential habitats, presented a plan for the establishment of protected areas, applied RCP 8.5 climate change scenario to analyze the effects of climate change on the future distribution of Korean fir trees, and predicted future potential habitats. According to the results of the study, 3,325 Korean fir trees (DBH >= 2.5 cm) inhabited Mt. Baekwun, and their distribution area was approximately 150 ha. Populations of Korean fir trees were confirmed to exist at an altitude of 900 m above sea level and were distributed up to 1,200 m. Based on potential distribution, areas appropriate for habitation by Korean fir trees were analyzed to be 450 ha, three times the current distribution area, with a focus on Sang Peak (Sang-bong), Eokbul Peak (Eokbul-bong), Ddari Peak (Ddari-bong), and Dosol Peak (Dosol-bong). The forest stands near Sang Peak, the main peak, were evaluated as those with the most appropriate potential for the habitation of Korean fir trees, and populations of the trees tended to prefer the northern slope rather than the southern slope. When climate change scenario RCP 8.5 was applied and future potential distribution was analyzed, the habitats were expected to decrease in area to 20 ha by 2050, with a focus on Sang Peak, and areas appropriate for habitation were predicted not to exist by 2080. Judging from such results, as global warming accelerates, the habitats of Korean fir trees are clearly expected to move from lowlands to highlands.

한국형 출혈열 환자에서 분리한 한타 바이러스의 핵산 분석

조종태,윤성철,안규리,한진석,김성권,이정상 단국대학교 1998 論文集 Vol.33 No.-

Hemorrhagic fever with renal syndrome(HFRS)is an infectious disease showing diverse clinical manifestations according to different serotypes of hantavirus. On the assumption that the antigenicity, nucleotide and amino acid sequence diversity of hantaviruses, as well as immune response diversity of individual KHF patients may be present, this study was performed to analyse the genetic diversity of hantaviruses isolated from patients with KHF. In the 13 samples hantaviral RNAs were extracted, cDNAs of partial M segment were amplified by RT-PCR using genus-reactive primer, amplified cNNAs were analyzed by direct sequencing method, and then the nucleotide and deduced amino acid sequences were compared with previously known sequences of four serotypes of hantavirus isolated from rodent hosts and each other by the computer assistance. The results were as follows. The nucleotide and amino acid sequences of 11 samples among the 13 human isolates showed 90.3∼95.5%, 86.7∼97.9% the other 1 samples 82.7%, 71.9% homology respectively to those of Hantaan virus 76-118 strain, and another 1 sample showed 83.7%, 75.3% homology respectively to those of Seoul virus B1 strain isolated from rodent host. The nucleotide and amino acid sequences of 7 among 12 Hantaan samples showed differences within 5%, 10% respectively each other and high genetic similarities, but those of the oehr 5 among 12 Hantaan samples showed low genetic similarities each other. In conclusion, hantaviruese isolated from KHF patients showed genetic diversity compared with previously known hantaviruses isolated from rodent hosts.

MRI용 초전도 능동차폐 마그네트의 설계에 관한 연구

조윤현,이광호,김성도 東亞大學校 附設 情報通信硏究所 1996 情報通信硏究所論文誌 Vol.4 No.1

An optimal design approach is presented for the high homegeneity superconducting magnet with a superconducting active shield esperically for a magnetic resonance imaging system. This paper is investigated magnetic phenomena for a stray magnetic to get reduction technigues of the unwanted stray magnetic field from the superconducting magnet.

입원환자 간호관리료 차등제 도입이후 간호사 확보수준의 변화

조성현,전경자,김윤미,박보현 대한간호학회 간호행정학회 2008 간호행정학회지 Vol.14 No.2

Purpose: To examine the changes in nurse staffing in hospitals after implementing the policy of differentiating inpatient nursing fees by staffing grades. Method: The study sample included 43 tertiary hospitals, 185 general hospitals, and 282 non-general hospitals that were operating in both 1999 and 2008. Nurse staffing grade was categorized from Grade 1 (highest) to 6 (lowest) in 1999 or Grade 7 in 2008, based on the nurse-to-bed ratio. Results: Tertiary hospitals at Grade 3 and Grade 4 accounted for 49% and 35%, respectively, in 2008, whereas 63% were Grade 6 in 1999. General hospitals at Grade 6 decreased from 87% to 48%. In non-general hospitals, little change was found in the staffing distribution, in that 92% still remained in Grade 6 or 7 in 2008. Forty tertiary hospitals (93%) and 45% of general hospitals improved their staffing grades, while only 7% of non-general hospitals did. Greater likelihood of improvement in staffing grades was found in general hospitals located in metropolitan areas or having 250 or more beds. Conclusion: Elaboration of the financial incentive system is needed to increase the policy impact on staffing improvement.

인공치아 이식 후 발생한 편측성 상악동염 1예

조성일,최지윤 朝鮮大學校 附設 醫學硏究所 2008 The Medical Journal of Chosun University Vol.33 No.2

Recently, dental implant is frequently performed in dentistry. It can give rise to complications such as maxillary sinusitis, oroantral fistula, displacement of implants and others. Among these complications, maxillary sinusitis is one of the severe complication, which is being reported to occur rarely. The complications of dental implant are often accompanied by gingival swelling, pain, fistula and other symptoms, for which immediate therapeutic measures may be implemented. The clinical diagnosis of sinusitis after dental implant is confirmed by radiologic findings and clinical symptoms. It can be treated with medical and surgical therapy. The authors experienced a case with unilateral maxillary sinusitis developed after dental implant performed at the dental clinic, which was alleviated by performing endoscopic sinus surgery. By reporting this case, we aimed to call attention to the complications of sinusitis and consider implant displacement in suspicious cases of acute maxillary sinusitis.

질소-프로판-암모니아 가스분위기에서 침탄질화시 공기첨가량이 침탄질화특성에 미치는 영향

조효석,이준범,노용식,이상윤 동아대학교 공과대학 부설 한국자원개발연구소 1993 硏究報告 Vol.17 No.1

This study has been performed to find out some effects of air and ammonia addition to a given quantity of nitrogen and propane gas mixture on the carbonitriding characteristics of low carbon steel after carbonitriding for one hour and two hours at 870℃. Carbon potential analysis has shown that the carbon potential decreases with increasing air addition at a given amount of ammonia and also with increasing ammonia addition at a given amount of air. Microscopical observation has revealed that the depth of internal oxidation increases with increasing air addition to a given gas atmosphere and the formation of surface abnormal layer considerably occurs in the gas mixture of more than 2.5% ammonia addition. If has been found by hardness measurements that the effective case depth increases with increasing air addition to a given gas mixture, whereas in more or less decreases with ammonia addition.

情神分裂病 患者의 腦梁과 視床 : 腦 磁氣共鳴映像 硏究 Magnetic Resonance Imaing Study

조성연,강민희,이정섭 대한생물치료정신의학회 2002 생물치료정신의학 Vol.8 No.2

남성 정신분열병 환자에서 대조군에 비하여 뇌량무릎(genu)부위가 유의하게 작았으며 여성 정신분열병 환자군에서는 양군에서 차이가 없었다. 시상의 면적에서는 양군의 차이가 없었다. 이러한 결과는 남성 정신분열병에서 전전두엽의 크기가 작을 가능성을 시사하며, 또한 남성 정신분열병이 여성에 비하여 신경발달학적인 이상이 많을 가능성을 생각할 수 있다. Magnetic resonance imaging study about size of corpus callosum and thalamus of the shizophrenic patient. Many previous studies have been performed. But the result have been inconsistent. We studied with developed semiautomated measurement method. Using DSM-Ⅳ diagnostic criteria of schizphrenia, we selected 20 subjects and 22 controls. We measured area of corpus callosum and thalamus in midsagittal image with NIH image software. Divided 7 areas of corpus callosum as Witelson method and area of thalamus were measured. Significant difference was found in genu area of male corpus callosum, but no significant difference was found in female between schizophrenia and control. Above finding suggests that male schizophrenia may have neurodevelopmental abnormalities and prefrontal abnormalities.

개에서 심장사상충과 유선암종 합병증의 1예

조은상,손화영,류시윤,조성환 忠南大學校 獸醫科大學 動物醫科學硏究所 2005 動物醫科學硏究誌 Vol.13 No.-

A dog which referred to animal hospital with chief compliment of left hindlimb lameness, was died under the examination, so we observed this case histopathologically. Clinical signs were hindlimb lameness, dyspnea, exercise intolerance, lethargy, hemoptysis, anorexia, and coughing. The gross findings were 5cm in diameters nodule in the caudal abdomen, swelling and milky nodules of the lung, swelling and gray-white patches of the liver, ovarian cyst and dirofilariasis in the heart. In histopathologic examination, metastatic tumors and microfilaria were observed in the lung, liver, spleen, adrenal gland and kidney.

개에서 관찰된 모기질세포종의 증례보고

조성환,손화영,김혜성,최종윤,류시윤,박배근,윤원기,홍성혁,김덕환 충남대학교 수의과대학 동물의과학연구소 2002 動物醫科學硏究誌 Vol.10 No.-

Pilomatricoma was histopathologically diagnosed in a 2.5-year-old male Alaskan malamute. The patient was referred to Chungnam National University, Veterinary Medical Teaching Hospital with solitary, firm and well-circumscribed mass at shoulder. Grossly, the mass was dome shaped to tumor like and 10 x 8 x 5㎝ in size. Some lesions had gritty or bony consistency and was chalky when sectioned Histopathologic feature included mumerous clusters of tightly arranged, basaloid cells with evenly distributed chromatin and ghost cells were characterized by a central unstained zone. The ghost cells often become calcified and osseous metaplasia was also present.

배추좀나방(Plutella Xylostella Linnaeus)에 대한 새로운 살충활성 분자의 설계

조윤기,최우영,성낙도 충남대학교 농업과학연구소 2007 농업과학연구 Vol.34 No.2

The new insecticidal active molecules from the based on the holographic quantitative structure-activity relationships (HQSAR) between a series of 1-(R₁)-2-(n-octyl)-3-(R₂), 3-(R₃)-pseudothiourea derivatives and their insecticidal activities against Diamond-back moth (Plutella Xylostella Linnaeus) were designed and discussed quantitatively. The most active molecule from the based graphical analyses of atomic contribution maps with the optimized HQSAR C-1 model (q²=0.764 & r²_(ncv)=0.942) was 1-(n-butyl)-2-(t-butyl)-3,3-diisopropylpseudothiourea (P1: pI_(50)=5.30, IC_(50)=1.397 ppm). Therefore, it is suggested that the new designed molecule would increased the activity as much as 23.5 times as compared to X=n-octyl substituent 17(pI_(50)=4.00, IC_(50)=32.86 ppm) which was the highest active molecule in training set compounds.