• 한국콘텐츠학회논문지
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• 제17권8호
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• pp.463-471
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• 2017

최근 애완동물을 키우는 인구가 급격히 증가하고 있다. 이에 따라 애완동물 관련 시장이 지속적으로 성장하고 있으며 애완동물 관련 용품의 수요도 증가하고 있다. 애완동물시장 중 가장 많은 비중을 차지하는 애완견시장에는 다양한 애완견용품들이 존재하지만 애완견용품에 관한 디자인가이드라인이 없어 사람의 판단에 의한 무분별한 애완견용품의 디자인이 진행되고 있다. 따라서 본 연구는 다양한 애완견용품 중 애완견용 모니터링 시스템을 중심으로 애완견용품의 디자인에 대한 가이드라인을 제시하고자 한다. 혼자 남아 있는 애완견을 여행지 등 어떠한 곳에서도 간단하게 스마트폰을 이용하여 모니터링 할 수 있으며, 신호 제어가 가능한 먹이통을 통해 먹이를 줄 수 있는 애완견 모니터링 로봇이다. 본 연구는 기존 IP Camera의 종류 및 기능을 파악하고 애완견의 행태 및 애완견의 신체 특징을 반영하여 애완견용 모니터링 제품으로써 필요한 최소한의 디자인 가이드라인을 제시하였다. 또 디자인 가이드를 적용한 시제품을 제작하여 시제품 작동에 대한 애완견의 행동을 관찰하여 문제점을 파악하였다. 그러나 본 연구는 연구 대상이 애견으로 다양한 애견의 만족도를 판단하기 위한 데이터 확보 및 연구기간의 한계가 있었으며, 더 많은 데이터 확보를 위해 향후 지속적인 관찰과 문제점 개선을 통한 후속 연구가 필요하다.

• 한국식품위생안전성학회지
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• 제5권3호
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• pp.159-164
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• 1990

To detect and quantitation residual antibiotics and antibacterial agents in meats, we performed a biological assay employing the three microorganisms Bacillus subtilis ATCC 6633, Micrococcus luteus ATCC 9341, and Bacillus cereus var. mycoides ATCC 11778 for the screening purpose and developed a Gas Chromatography-mass Spectrometry(GC/MS) analysis for the confirmation and quantiation. In the biological assay (paper disk method), three test solution are used depending on the character of the residual antibiotics and antibacterial agents, follow by a simple clean up procedure which includes homogenization with Mcilvaine buffer, defatting with includes homogenization with Mcilvaine buffer, defatting with hexane, extraction with chloroform, clean-up by Sep-Pak $C_{18}$ and Bakerbond SPE carboxylic acid column. The chloroform layer is used for the analysis of sulfa agents. macrolides antibiotics and antibacterial agents, Adsorbed materials in the Sep-Pak $C_{18}$ were also employed for th analysis of penicillins and tetracyclines. Effluents from the Sep-Pak $C_{18}$ were cleaned-up one more by Bakerbond 10 SPE COOH column and employed for the analysis of aminoglycosides. In the instrumental analysis by using the GC/MSD, residual antibiotics and antibacterial agent were quantitated by selected ion monitoring (SIM) mode after derivatization. A simultaneous analysis of six residual antibiotic and antibacterial agent such as oxytetracycline, penicillin, ampicillin, choliraphenicol and thiamphenicol was developed with simple cleanup procedures revealing good recovery and reproducibility. Also, simultaneous detection of macrolides antibiotics such as erythromycin, spiramycin, and oleandomycin was developed after acid hydrolysis due to their large molecular structures. Because of the high reproducibility and selectivity of these two methods, it is very desirable that the combination of the two methods be used in the bioassay for the screening of residual antibiotics and antibacterial agent and that GC/MSD analysis be used for the confirmation and quantitation.

• 한국환경생태학회지
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• 제17권3호
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• pp.242-257
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• 2003

본 연구는 생태계보전지역인 둔촌동습지의 모니터링을 통한 생태적 복원 및 보전계획을 수립하기 위해 실시되었다. 모니터링 기준으로는 항목, 방법, 시기, 횟수 등을 설정하였다. 모니터링 기준에 따라 조사한 결과 식물생태분야에서 대상지내 식물종은 총 39과 116종 19변종 1품종으로 총 132종류가 출현하였고 이중 자생종은 85종, 외래종은 47종이었다. 월별(4∼9월) 현존식생 모니터링 결과 습지성 초본식물군락 세력이 증가추세이었고 특히 고마리군락의 세력이 왕성해졌다. 아울러 기존 경작지를 중심으로 천이초기식물과 귀화식물의 출현빈도가 높았다. 동물생태분야에서 야생조류는 34종 378개체, 양서류는 4종 5개체, 곤충류는 11목 52과 153종이 조사되었다. 무기환경분야에서는 지하수위. 수질. 토양특성을 분석하였는데 이중 지하수위는 0.0∼89.0cm이었고 토양에서는 Ca++의 함량이 2.18∼13.73cmol/kg로 나타났다. 모니터링 결과를 바탕으로 한 연구대상지 생태적 복원구상을 습지생태계 복원구상. 용출지 복원구상. 산림생태계 복원구상으로 구분하여 기본방향과 각 공간별 세부계획을 제시하였다. 습지생태계 복원구상에서는 기존 습지지역의 보전과 경작지로 활용되던 습지지역의 복원구상을 수립하였으며, 용출지복원구상에서는 용출지 및 진입부의 복원을 수립하였고 산림생태계 복원구상에서는 건조성 산림 생태계와 습지성산림생태계의 복원 및 주연부지역의 야생조류 서식처 계획을 수립하였다.

• 한국산업보건학회지
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• 제32권4호
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• pp.402-413
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• 2022

Objectives: In this study, the scale of exceeding the extreme heat exposure standard at the construction site was estimated using the nationally approved statistical data and wet bulb globe temperature modeling method. By comparing and analyzing the modeling results with the existing work environment monitoring results, the risk of heat exposure at outdoor construction sites was considered. Methods: Using the coordinates of second level administrative districts and meteorological observatories as the key, the automated synoptic observing system data and building permit data for 2021 were matched. The wet-bulb temperature was obtained using Stull's formula, and the globe temperature was obtained using the Tg_KMA2006 model. WBGT was calculated using these. Excess rates were obtained compared to exposure limits for heavy work-continuous work and moderate work-25% rest. It was compared with the results of the work environment monitoring in 2020. Results: As a result, 1,827,536 cases were estimated for 11,052 workplaces in one year. This is much higher than the 5,116 cases of 3818 workplaces of the existing work environment monitoring results. It is confirmed that the exposure limit was exceeded in 10.6~24.0% of the entire period and 70.2~84.1% of the peak period of the heat wave. It is very high compared to 0.9% of the existing work environment monitoring result. Conclusions: It is necessary to improve the system of monitoring and statistics related to extreme heat. Additional considerations are needed regarding WBGT estimation methods, meteorological data, and evaluation time. Various follow-up risk assessment studies for other industries and time series need to be continued.

• Asian Pacific Journal of Cancer Prevention
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• 제17권4호
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• pp.2301-2305
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• 2016

Background: The early detection of anthracycline- induced cardiotoxicity is very important since it might be useful in prevention of cardiac decompensation. This study was designed with the intent of assessing the usefulness of cardiac troponin T (cTnT) and NT- Pro BNP estimation in early prediction of anthracycline induced cardiotoxicity. Materials and Methods: In this prospective study histologically proven breast cancer patients who were scheduled to receive anthracycline containing combination chemotherapy as a part of multimodality treatment were enrolled. Baseline cardiac evaluation was performed by echocardiography (ECHO) and biomarkers like cardiac troponin T (cTnT) and N terminal- pro brain natriuretic peptide (NT- Pro BNP). All patients underwent cTnT and NT- Pro BNP estimation within 24 hours of each cycle of chemotherapy and were followed up after 6 months of initiation of chemotherapy. Any changes in follow up ECHO were compared to ECHO at baseline and cTnT and NT- Pro BNP levels after each cycle of anthracycline-based chemotherapy. Results: Initial data were obtained for 33 patients. Mean change in left ventricular diastolic diameter (LVDD) within 6 months was $0.154{\pm}0.433cms$ (p value=0.049). Seven out of 33 patients had an increase in biomarker cTnT levels (p value=0.5). A significant change in baseline and follow up LVDD was observed in patients with raised cTnT levels (p value=0.026) whereas no change was seen in ejection fraction (EF) and left atrial diameters (LAD) within 6 months of chemotherapy. NT- Pro BNP levels increased in significant number of patients (p value ${\leq}0.0001$) but no statistically significant change was observed in the ECHO parameters within 6 months. Conclusions: Functional monitoring is a poorly effective method in early estimation of anthracycline induced cardiac dysfunction. Estimation of biomarkers after chemotherapy may allow stratification of patients in various risk groups, thereby opening window for interventional strategies in order to prevent permanent damage to the myocardium.

• 한국환경과학회지
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• 제29권4호
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• pp.325-337
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• 2020

The purpose of this study was to analyze the soil environment of urban neighborhood parks and to use them as basic data for evaluating the ecological functions of urban parks such as groundwater regeneration, flood control, microclimate regulation, adsorption and purification. The landscape design criteria were generally evaluated as advanced, and further monitoring and studies are needed to evaluate the various ecological functions. It is also necessary to improve the phosphoric acid and nitrogen contents, which tended to be low. In addition, continuous monitoring is needed to assess the proper soil environment according to the biological species, and to evaluate the ecological functions. The results of this study can be used to evaluate the groundwater recharge of urban parks. In particular, when the land of the neighboring park is used for various purposes, the level of access of the user may be increased. Therefore, factors that may adversely affect the user's health, such as heavy metals and organic matters, should be selected and selected as management criteria. In addition, follow-up studies considering fertilization standards suitable for trees and growth of introduced vegetation, etc. are needed urgently to improve the soil environment.

• Journal of Korean Neurosurgical Society
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• 제55권1호
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• pp.43-47
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• 2014

Patients with neurofibromatosis 1 (NF1) are predisposed to develop central nervous system tumors, due to the loss of neurofibromin, an inactivator of proto-oncogene Ras. However, to our knowledge, only three cases of ependymomas with NF1 have been reported in the literature. The authors present a case of NF1 patient with a spinal cord ependymoma. She was referred for about half a year history of increasing numbness that progressed from her fingers to her entire body above the bellybutton. Magnetic resonance imaging revealed a relative-demarcated, heterogeneously enhanced mass lesion accompanied by perifocal edema in C5-7 level, a left-sided T11 spinous process heterogeneously enhanced mass in soft tissue, intervertebral disk hernia in L2-5 level, and widespread punctum enhancing lesion in her scalp and in T11-L5 level. The patient underwent C5-7 laminectomies and total excision of the tumor under operative microscope, and intraoperative ultrasonography and physiological monitoring were used during the surgery. Histopathologically, her tumor was found to be a ependymoma without malignant features (grade II in the World Health Organization classification). Therefore, no adjuvant therapy was applied. Following the operation, the patient showed an uneventful clinical recovery with no evidence of tumor recurrence after one year of follow-up.

• Journal of Korean Neurosurgical Society
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• 제53권1호
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• pp.39-42
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• 2013

Objective : Obtaining real-time image is essential for neurosurgeons to minimize invasion of normal brain tissue and to prompt diagnosis of intracranial event. The aim of this study was to report our three-year experience with a mobile computed tomography (mCT) for intraoperative and bedside scanning. Methods : A total of 357 mCT (297 patients) scans from January 2009 to December 2011 in single institution were reviewed. After excluding postoperative routine follow-up, 202 mCT were included for analysis. Their medical records such as diagnosis, clinical application, impact on decision making, times, image quality and radiologic findings were assessed. Results : Two-hundred-two mCT scans were performed in the operation room (n=192, 95%) or intensive care unit (ICU) (n=10, 5%). Regarding intraoperative images, extent of resection of tumor (n=55, 27.2%), degree of hematoma removal (n=42, 20.8%), confirmation of catheter placement (n=91, 45.0%) and monitoring unexpected complications (n=4, 2.0%) were evaluated. A total of 14 additional procedures were introduced after confirmation of residual tumor (n=7, 50%), hematoma (n=2, 14.3%), malpositioned catheter (n=3, 21.4%) and newly developed intracranial events (n=2, 14.3%). Every image was obtained within 15 minutes and image quality was sufficient for interpretation. Conclusion : mCT is feasible for prompt intraoperative and ICU monitoring with enhanced diagnostic certainty, safety and efficiency.

• 부모자녀건강학회지
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• 제3권2호
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• pp.81-93
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• 2000

The role of the neonatal nurse specialist has been well established over the past decade and now reform in 21st century. Neonatal nurse specialists responsibilities in caring for critically and long-term chronically ill infants and their families are very important. Neonatal nurse specialists have a two fold responsibility in caring for these infants. First, through acquiring advanced practice education in complex neonatal care and diagnostic skills, neonatal nurse specialists meet the physiologic needs of the infant. Second, neonatal nurse specialists provide a more holistic approach to their care through evaluating the family in treatment plans and involving the family in discharge planning for the infant. In some institutions, neonatal nurse specialists are directly involved in institutional and/or home follow-up care and case management also. It is the neonatal nurse specialists responsibility to function collaboratively with the multidisciplinary team in managing critically or chronically ill infants from admission to discharge. The role of the neonatal nurse specialist case manager can be described as one that focuses on individualized care of the infant, while providing continuity of care to both the infant and family. The neonatal nurse specialist's role will vary depending on the neonatal intensive care unit(NICU). Therefore, the multidisciplinary collaborative approach to long-term management of infants in the NICU is extremely important to provide successful transition to home or to long-term rehabilitative care facilities because care for the chronically ill infant is complex and multifaceted. I suggest the role of neonatal nurse specialist in 21st century are as follows. 1. Diagnostic/patient assessment 2. Management of patient health/illness 3. Administering/monitoring therapeutic interventions and regimens 4. Monitoring/ensuring quality of health care practices 5. Organization and work role 6. Helping role 7. Teaching/coaching role 8. Management of rapidly changing situations 9. Consulting role The advanced practice nursing model of care delivered by neonatal nurse specialist's in the NICU incorporates medical and nursing role functions and emphasizes holism, caring, and a health perspective for critically and chronically ill neonates and their families.

• 천문학회지
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• 제48권5호
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• pp.257-265
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• 2015

We present results of long-term multi-wavelength polarization observations of the powerful blazar 3C 279 after its γ-ray flare on 2013 December 20. We followed up this flare with single-dish polarization observations using two 21-m telescopes of the Korean VLBI Network. Observations carried out weekly from 2013 December 25 to 2015 January 11, at 22 GHz, 43 GHz, 86 GHz simultaneously, as part of the Monitoring Of GAmma-ray Bright AGN (MOGABA) program. We measured 3C 279 total flux densities of 22–34 Jy at 22 GHz, 15–28 Jy (43 GHz), and 10–21 Jy (86 GHz), showing mild variability of ≤ 50 % over the period of our observations. The spectral index between 22 GHz and 86 GHz ranged from −0.13 to −0.36. Linear polarization angles were 27°–38°, 30°–42°, and 33°–50° at 22 GHz, 43 GHz, and 86 GHz, respectively. The degree of linear polarization was in the range of 6–12 %, and slightly decreased with time at all frequencies. We investigated Faraday rotation and depolarization of the polarized emission at 22–86 GHz, and found Faraday rotation measures (RM) of −300 to −1200 rad m⁻² between 22 GHz and 43 GHz, and −800 to −5100 rad m⁻² between 43 GHz and 86 GHz. The RM values follow a power law with a mean power law index a of 2.2, implying that the polarized emission at these frequencies travels through a Faraday screen in or near the jet. We conclude that the regions emitting polarized radio emission may be different from the region responsible for the 2013 December γ-ray flare and are maintained by the dominant magnetic field perpendicular to the direction of the radio jet at milliarcsecond scales.