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육계에서 sulfathiazole 경구투여 후 혈장 및 조직내 잔류량
서형석 ( Heyng Seok Seo ),임정철 ( Jung Chul Lim ),허부홍 ( Boo Hong Hur ),권정택 ( Jung Taek Kwon ),김성문 ( Seong Moon Kim ),천희웅 ( Hee Woong Chun ),최인방 ( In Bang Choi ),김진상 ( Jin Shang Kim ) 한국가축위생학회 2002 韓國家畜衛生學會誌 Vol.25 No.3
The purposes of this study were to characterize the disposition of sulfathiazole(ST) and to investigate the effects of sodium bicarbonate on the disposition of ST in broiler chicks(2.5~3.0kg). Animals were given ST acutely(10~80mg/kg, PO), and plasma, kidney, muscle, heart, liver and spleen samples were collected and analyzed for ST by high performance liquid chromatography. The plasma and tissue data was consistent with a one-compartment pharmacokinetic model. The drug is rapidly but incompletely(2.5~3.87%) absorbed with peak plasma and tissue levels being achieved within one hour after dosing. The plasma and tissue levels depended on drug dosage, and the descending order in concentration of ST was kidney>plasma>heart>muscle≥spleen≥liver from animals sacrificed at one hour after dosing. Moreover, significant positive correlations(r>0.9) existed between plasma and tissue levels of ST. In addition, sodium bicarbonate pretreatment decreased plasma level, indicating that an alkalinization stimulate the excretion of ST. Results of this study suggest that oral application of ST was rapidly absorbed and eliminated, and confirmed that tissue residues of ST can be estimated from plasma drug concentration in broiler chicks.
위성영상과 Maxent를 활용한 생태계교란생물 분포지역 예측 : DMZ의 단풍잎돼지풀을 대상으로
박현철 ( Park Hyun-chul ),임정철 ( Lim Jeong-cheol ),이정환 ( Lee Jung-hwan ),이관규 ( Lee Gwan-gyu ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2017 한국환경복원기술학회지 Vol.20 No.1
This study has been carried out for the purpose of predicting the potential habitat sites of invasive alien plants in the DMZ and providing the basic data for decision-making in managing the future DMZ natural environment. From 2007 to 2015, this study collected the data for the advent of Ambrosia trifida var. trifida through fieldwork around the DMZ area, and simulated the potential distribution area of Ambrosia trifida var. trifida using Maxent model among the models of species distributions. As a result, it showed that the potential distribution area of the Ambrosia trifida var. trifida was concentrated in the western DMZ with relatively low altitude and scanty in the central east regions with relatively high elevation and forest cover rate. Because the invasive alien vegetation is a significant threatening factor in the agriculture and restoration of ecology and it costs a lot to restore the area already invaded by invasive alien vegetation, advance precautions are necessary to prevent biological invasions. It is expected that it is possible to predict the disturbed ecosystems through this study for the efficient land use within DMZ in the future and to apply this study in setting up the areas for the development and conservation within the DMZ.
중국 근로자들의 조직몰입과 이직의도를 새롭게 설명하는 변수들: 지각된 외부평판, 윤리적인 조직 분위기, 그리고 리더-구성원 간 교환(LMX)의 질
김하연 ( Ha Yeon Kim ),강대석 ( Dae Seok Kang ),임정철 ( Jung Chul Lim ),진홍잉 ( Hong Ying Jin ) 한국인력개발학회 2010 HRD연구 Vol.12 No.3
중국에 진출한 한국기업들은 현지 종업원들의 조직몰입 증진과 유지 관리에 필요한 HR정책을 실행하는데 많은 노력을 기울이고 있다. 본 연구는 ‘조직몰입-이직의도 모델’을 설명하는데 있어서 중국의 사회/문화적 특성을 반영할 수 있는 지각된 외부평판(perceived external prestige: PEP), 윤리적인 조직분위기(ethical organizational climate), 그리고 리더-구성원 간 교환(leader-member exchange; LMX)의 질의 역할을 검토한다. 연구 개념들 간의 관계는 기존 문헌들에 근거하여 가설화되었으며, 중국의 7개 주요도시에 소재를 둔 외자 및 국유기업에 근무하는 410명의 사무직 근로자들로부터 설문을 통해 검증되었다. 구조방정식모델(structural equation modeling: SEM)은 지각된 외부평판, 윤리적인 조직분위기, LMX의 질이 조직몰입에 긍정적인 영향을 미칠 뿐 아니라, 이직의도에 대해서도 간접적인 유의한 영향력이 있음을 입증하였다. 다만 윤리적인 조직분위기와 LMX의 질이 정서, 규범, 근속몰입 모두에 유의했던 것과는 달리, 지각된 외부평판은 정서차원에만 유의한 영향력을 나타냈다. 이러한 연구결과들을 바탕으로 중국에 진출한 한국기업들의 현지화 적응 전략에 관한 실무적 시사점과 향후 연구에 대한 논의가 이루어졌다. Korean enterprises in China try to execute betterHR practices for employees` organizational commitment and their retention in organization. This study investigates the role of perceived external prestige, ethical organizational climate, and leader-member exchange (LMX) quality in explaining ‘organizational commitment-turnover intentionmodel’. Relationships among the constructs are predicted and tested through the survey fromemployeesworking in foreign-invested companies and state-owned enterprises based on sevenmajor cities. Structural equationmodeling (SEM) shows that perceived external prestige, ethical organizational climate, and LMX quality have positive impacts on organizational commitment, and also have indirect effect on turnover intention. However, perceived external prestige is significantly related to only affective commitment, while ethical organizational climate and LMX quality are related to affective, normative, and continuance commitment. Furthermore, the implications for practice and future research are discussed.
정우섭,임정철,강삼석,이정청 대한신경외과학회 1979 Journal of Korean neurosurgical society Vol.8 No.1
A case of intradural spinal lipoma without congenital abnormalities is presented. A 37 year-old male was admitted to our hospital because of paralysis of both legs and sphincteric disturbance. Neurologic findings were spastic paraplegia, hypesthesia on the level of T10, 11 dermatome, anesthesia below the level of T12 dermatome, Beevor's sign, bilateral ankle clones and Babinski sign. Plain thoracolumbar spine X-ray showed widening of the interpedicular distances of T10, 11 in A-P view, and scalloping in the Posterior aspect of the bodies of T10, 11 in lateral view. Myelogram showed widening of the dye column and double cup-like filling defect at the level of the T12 spinal body. Total laminectomy was performed from L1 through T9. The tumor located from T10 to T12 of the spinal level intradurally, and also diffusely infiltrated the cord, making complete removal impossible. The histopathologic examination confirmed the lipoma. The patient was discharged without improvement of neurologic deficits.
두개강내 낭충증 3예 : Report of 3 Cases
金永植,林靖澈,李濟赫,禹廷鉉 대한신경외과학회 1979 Journal of Korean neurosurgical society Vol.8 No.1
The authors report 3 cases of intracranial cysticercosis simulating brain tumor. The 2 cases of them had parenchymatous huge cysts in the cerebral hemisphere and the other one had large cyst in the 4th ventricle. In one case of parenchrmatous cysticercosis, angiographic finding was less significant though C-T scan revealed huge cystic shadow in the frontal lobe bilaterally and multiple small cystic shadow in occipital lobe and cerebellum. The 4th ventriclular cysticercosis was well deliniated with Conray ventriculography. All cases were proved as cerebral cysticercosis by operation and the patients were uneventful postoperatively.
金壽漢,趙光龍,鄭羽燮,林靖澈,李廷淸 대한신경외과학회 1977 Journal of Korean neurosurgical society Vol.6 No.2
Intracranial subdural empyema is a relatively uncommon complication of paranasal sinusitis and otitic infection, it manifests itself by headache, neck stiffness and pyrexia, symptoms and signs of acutely increased intracranial pressure, convulsions, aphasia and other focal neurological signs. Recently, we have operated upon two cases of intracranial subdural empyema secondary to acute frontal sinusitis and traumatic scalp laceration respectively. Reviewing these two cases and other literatures, we are going to describe about causes, symptoms and signs, and methods of diagnosis and treatment of subdural empyema.