• Title/Summary/Keyword: 낮병원

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Evaluation of Entomopathogenic Nematodes, Steinernema carpocapsae (Steinernematidae) and Heterorhabditis bacteriophora (Hetrorhabditidae) against Rice Stem Borer Chilo suppressalis (Walker) (Lepidoptera: Pyralidae) (이화명나방 유충에 대한 곤충병원성 선충 Steinernema carpocapsae(Steinernematidiae)와 Heterorhabditis bacteriophora(Heterohabditidae)의 살충효과)

  • ;Harry K. Kaya
    • Korean journal of applied entomology
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    • v.30 no.1
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    • pp.50-53
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    • 1991
  • The entomopathogenic nematodes, Steinernema carpocapsae and Heterorhabditis bacteriophoTa, were laboratory tested for the control of rice stem borer Chilo suppressalis. When 8 cm long of two rice stems infected by rice stem borers were treated with S. carpocapsae by spray application to the concentrations of 250, 500, 1,000, or 2,000 nematodes/ml, 68.6 $\pm$ 10.0-94.9 $\pm$ 2.6 % control was obtained. When 8 cm long of rice stems infected by rice stem borers were treated with H. bacteriophoTa by spray application to the concentrations of 100, 200, 400, or 800 nematodes/ ml, 91.4 $\pm$ 0.7-100 % control was obtained. On the other hand, when 8 cm long of three rice stems were treated with H. bacteriophora by dipping application to the concentrations of 100 or 200 nematodes/ml, 46.2 $\pm$ 4.7-63.1 $\pm$ 4.7 % control was obtained. Because the moist habitat of rice stems were favorable to nematode survival and searching abilities, entomopathogenic nematode, were confirmed to be a potential biological control agents against rice stem borers.

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Effect of Resilience and Positive psychological Capital on the Professional Quality of Life in Hospital Nurses (병원간호사의 극복력과 긍정심리자본이 전문직 삶의 질에 미치는 영향)

  • Go, Younghye;Lee, Mihyun
    • Journal of the Korea Convergence Society
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    • v.12 no.12
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    • pp.551-562
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    • 2021
  • This study aimed to identify the effect of resilience and positive psychological capital on hospital nurses' professional quality of life. A cross-sectional survey design was utilized to investigate 221 general hospital nurses from June 1 to 30, 2021. Professional quality of life (ProQOL), which is conceptualized with three sub-dimensions (compassion satisfaction, burnout, and secondary traumatic stress), resilience, and positive psychological capital variables were measured. There was a positive relationship between compassion satisfaction and resilience, positive psychological capital, and a negative relationship among burnout, secondary traumatic stress, and the other variables in this study. The main factors influencing compassion satisfaction were resilience, and positive psychological capital, which explained about 47% of compassion satisfaction. Burnout was influenced by resilience, positive psychological capital, and work pattern, and these variables explained about 37% of burnout. Notably, it was found that resilience was the most crucial factor in nurses' compassion satisfaction, and positive psychological capital was the most crucial factor in nurses' burnout. Thus, it is suggested to develop and verify the effectiveness of a resilience improvement program and positive psychological intervention program to strengthen the internal resources of hospital nurses.

A Preliminary study of Biomechanical Behavior of High-Performance Polymer Post-Core System (고성능 폴리머 재질의 포스트-코어 시스템의 생역학적 거동에 대한 예비실험)

  • Lee, Ki-Sun;Kim, Jong-Eun;Kim, Jee-Hwan;Lee, Jeong-Yol;Shin, Sang-Wan
    • Journal of the Korean Academy of Esthetic Dentistry
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    • v.27 no.2
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    • pp.75-81
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    • 2018
  • The aim of this study was to evaluate the biomechanical behavior and long-term safety of high performance polymer PEKK as an intraradicular dental post-core material through comparative finite element analysis (FEA) with other conventional post-core materials. A 3D FEA model of a maxillary central incisor was constructed. A cyclic loading force of 50 N was applied at an angle of $45^{\circ}$ to the longitudinal axis of the tooth at the palatal surface of the crown. For comparison with traditionally used post-core materials, three materials (gold, fiberglass, and PEKK) were simulated to determine their post-core properties. PEKK, with a lower elastic modulus than root dentin, showed comparably high failure resistance and a more favorable stress distribution than conventional post-core material. However, the PEKK post-core system showed a higher probability of debonding and crown failure under long-term cyclic loading than the metal or fiberglass post-core systems.

Correlation between Isolated Entomopathogenic Fungi and Soil Characteristics from Forest Areas of the Southwest Region in Korea (국내 서남 지역의 산림 토양 특성과 곤충병원성 진균과의 상관관계)

  • Kim, Hoe Ri;Kim, Hyngchan;Lee, Se Jin
    • Korean Journal of Organic Agriculture
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    • v.31 no.1
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    • pp.95-106
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    • 2023
  • Entomopathogenic fungi are one of the microorganisms distributed worldwide, and they inhabit not only insects but also soils of various regions such as agricultural land and forest areas. In this study, entomopathogenic fungi distributed in the soil of forest areas in Korea were isolated using the insect-baiting method, and the relationship between the distribution and diversity of entomopathogenic fungi and the physical/chemical characteristics of the soil was analyzed. The soils were collected from five forest areas in Korea, and a total of 42 entomopathogenic fungal isolates were isolated from the collected soils. Among them, Beauveria bassiana (42.9%) and Metarhizium anisopliae (45.2%) were mainly isolated. In particular, it was confirmed that the distribution of M. anisopliae varies depending on the total nitrogen (g/kg) and organic matter content (%) of the soil. The soils in forest areas in Korea have a low pH of 4-5. Among all isolates, >50% of entomopathogenic fungi were isolated from silt loam. This study suggests that it will be helpful in understanding the relationship between the distribution and diversity of entomopathogenic fungi and the physical and chemical characteristics of soil.

Direct Percutaneous Needle Puncture and Intrapulmonary Lymphatic Embolization for Treatment of Chylothorax in a Patient with Lymphoma (림프종 환자의 비외상성 유미흉에서 폐림프종의 피부경유 직접천자를 통한 색전술)

  • Lee Hwangbo;Hoon Kwon;Chang Ho Jeon;Chang Won Kim
    • Journal of the Korean Society of Radiology
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    • v.81 no.5
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    • pp.1222-1226
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    • 2020
  • Lymphoma is a common cause of nontraumatic chylothorax. Clinical success rates of thoracic duct embolization are lower in patients with nontraumatic chylothorax compared to patients with traumatic chylothorax. Herein, we report a case of nontraumatic chylothorax and lymphoma in a 77-year-old man managed with thoracic duct embolization. The chest tube drainage decreased but not was sufficient to enable removal of the chest tube. Therefore, a second embolization was performed through a direct puncture of the lymphatic mass in the lung, following which the chyle leakage ceased, and the chest tube was removed. The treatment strategy discussed in this report may be an effective therapeutic option for select patients with nontraumatic chylothorax.

Differences of Turnover Intention by Moral Distress of Nurses (간호사의 도덕적 고뇌 정도에 대한 이직의도의 차이)

  • Cho, Hang Nan;An, Minjeong;So, Hyang Sook
    • The Journal of the Korea Contents Association
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    • v.15 no.5
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    • pp.403-413
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    • 2015
  • The purpose of this study was to examine the degree of moral distress and turnover intention in nurses. Participants were 129 nurses working at a university hospital. Data were collected using a structured questionnaire survey from July 1 to August 8, 2014. Total mean score of moral distress was 3.18 and that of turnover intention was 3.20. There was a statistically significant differences on turnover intention between the group with high moral distress and the group with low moral distress (t = -2.11, p = .037). Further researches are needed to develop and provide ethics education program and moral distress management program to reduce the degree of moral distress of nurses in nursing practice.

A Study on Safety Management Inspection of Diagnostic X-ray System (진단용 엑스선 장치의 안전관리 검사에 관한 연구)

  • Lee, Hoo min;Kim, Hyeon ju
    • Journal of the Korean Society of Radiology
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    • v.12 no.7
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    • pp.887-893
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    • 2018
  • The purpose of this study is to compare the performance of X-ray generators installed in hospitals and universities and apply the quality control items of diagnostic X-ray generators to recognize the importance of periodic performance management. First, the reproducibility and linearity test results showed that the PAE of the reproducibility evaluation was high for the GX-650 devices that met the acceptance criteria in all the experimental conditions and lacked the periodic quality control. In the linearity evaluation, when the tube voltage was set to 100 kVp, It was measured to deviate from the error. In addition, it was found that the PAE in the low-accuracy evaluation results relative to an X-ray tube voltage and tube current of the device low occurrence frequency. The HVL experiment was included in all of the devices at the HVL by tube voltage. Therefore, it is necessary to recognize the importance of quality control of all devices rather than hospital and laboratory, and to manage the device performance by actively managing the device, and to establish a short - term quality control system like special medical devices.

The study of MDCT of Radiation dose in the department of Radiology of general hospitals in the local area (일 지역 종합병원 영상의학과 MDCT선량에 대한 연구)

  • Shin, Jung-Sub
    • Journal of the Korean Society of Radiology
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    • v.6 no.4
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    • pp.281-290
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    • 2012
  • The difference of radiation dose of MDCT due to different protocols between hospitals was analyzed by CTDI, DLP, the number of Slice and the number of DLP/Slice in 30 cases of the head, the abdomen and the chest that have 10 cases each from MDCT examination of the department of diagnostic imaging of three general hospitals in Gyeongsangbuk-do. The difference of image quality, CTDI, DLP, radiation dose in the eye and radiation dose in thyroid was analyzed after both helical scan and normal scan for head CT were performed because a protocol of head CT is relatively simple and head CT is the most frequent case. Head CT was significantly higher in two-thirds of hospitals compared to A hospital that does not exceed a CTDI diagnostic reference level (IAEA 50mGy, Korea 60mGy) (p<0.001). DLP was higher in one-third of hospitals than a diagnostic reference level of IAEA 1,050mGy.cm and Korea 1,000mGy.cm and two-thirds exceeded the recommendation of Korea and those were significantly higher than A hospital that does not exceed a diagnostic reference level (p<0.001). Abdomen CT showed 119mGy that was higher than a diagnostic reference level of IAEA 25mGy and Korea 20mGy in one-third. DLP in all hospitals was higher that Korea recommendation of 700mGy.cm. Among target hospitals, C hospital showed high radiation dose in all tests because MPR and 3D were of great importance due to low pitch and high Tube Curren. To analyze the difference of radiation dose by scan methods, normal scan and helical scan for head CT of the same patient were performed. In the result, CTDI and DLP of helical CT were higher 63.4% and 93.7% than normal scan (p<0.05, p<0.01). However, normal scan of radiation dose in thyroid was higher 87.26% (p<0.01). Beam of helical CT looked like a bell in the deep part and the marginal part so thyroid was exposed with low radiation dose deviated from central beam. In addition, helical scan used Gantry angle perpendicularly and normal scan used it parallel to the orbitomeatal line. Therefore, radiation dose in thyroid decreased in helical scan. However, a protocol in this study showed higher radiation dose than diagnostic reference level of KFDA. To obey the recommendation of KFDA, low Tube Curren and high pitch were demanded. In this study, the difference of image quality between normal scan and helical scan was not significant. Therefore, a standardized protocol of normal scan was generally used and protective gear for thyroid was needed except a special case. We studied a part of CT cases in the local area. Therefore, the result could not represent the entire cases. However, we confirmed that patient's radiation dose in some cases exceeded the recommendation and the deviation between hospitals was observed. To improve this issue, doctors of diagnostic imaging or technologists of radiology should perform CT by the optimized protocol to decrease a level of CT radiation and also reveal radiation dose for the right to know of patients. However, they had little understanding of the situation. Therefore, the effort of relevant agencies with education program for CT radiation dose, release of radiation dose from CT examination and addition of radiation dose control and open CT contents into evaluation for hospital services and certification, and also the effort of health professionals with the best protocol to realize optimized CT examination.

Dental Office Manager Current Conditions by Scale of Korean Dental Clinic (치과병(의)원의 규모에 따른 중간관리자의 현황)

  • Park, Young-Nam;Park, Keum-Ja;Oh, Sang-Hwan;Kim, Sook-Hyang
    • The Journal of the Korea Contents Association
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    • v.10 no.10
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    • pp.267-273
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    • 2010
  • The present study examined factors for current conditions of dental office manager in Korean dental clinic. 108 randomly selected members of Korean dental office manager responded to a questionnaire. A survey was conducted for a month from 1, June 2008, and the chi-square test and ANOVA were used in the statistical analysis. The findings of the study were as follows: The number of members depending on the type of occupation dental hospital was the highest number of members, members of the dental hygienist at the dental hospital number significantly higher. The career of dental office manager followed by 1-5 year in dental hospital, 5-10 year in dental network, 1-5 year in dental clinic accounting for 48%, 52.9%, 69.4%. The difficulty during duty performance are high expectation of owner in dental hospital, learning of dental office manager duty in dental clinic. The duty of dental office manager followed by customer service, appointment scheduling, telephone etiquette, treatment plan. Henceforth, it needs to standardize the Korean name of dental office manager and duty. Also, it have to an official certification system.

Examination of Dose Change at the Junction at the Time of Treatment Using Multi-Isocenter Volumetric Modulated Arc Therapy (용적조절호형방사선치료(VMAT)의 다중치료중심(Multi- Isocenter)을 이용한 치료 시, 접합부(Junction)의 선량 변화에 대한 고찰)

  • Jung, Dong Min;Park, Kwang Soon;Ahn, Hyuk Jin;Choi, Yoon Won;Park, Byul Nim;Kwon, Yong Jae;Moon, Sung Gong;Lee, Jong Oon;Jeong, Tae Sik;Park, Ryeong Hwang;Kim, Se young;Kim, Mi Jung;Baek, Jong Geol;Cho, Jeong Hee
    • The Journal of Korean Society for Radiation Therapy
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    • v.33
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    • pp.9-14
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    • 2021
  • This study examined dose change depending on the reposition error of the junction at the time of treatment with multi-isocenter volumetric modulated arc therapy. This study selected a random treatment region in the Arccheck Phantom and established the treatment plan for multi-isocenter volumetric modulated arc therapy. Then, after setting the error of the junction at 0 ~ 4 mm in the X (left), Y (upper), and Z (inner and outer) directions, the area was irradiated using a linear accelerator; the point doses and gamma indexes obtained through the Phantom were subsequently analyzed. It was found that when errors of 2 and 4 mm took place in the X and Y directions, the gamma pass rates (point doses) were 99.3% (2.085) and 98% (2.079 Gy) in the former direction and 98.5% (2.088) and 95.5% (2.093 Gy) in the latter direction, respectively. In addition, when errors of 1, 2, and 4 mm occurred in the inner and outer parts of the Z direction, the gamma pass rates (point doses) were found to be 94.8% (2.131), 82.6% (2.164), and 72.8% (2.22 Gy) in the former part and 93.4% (2.069), 90.6% (2.047), and 79.7% (1.962 Gy) in the latter part, respectively. In the X and Y directions, errors up to 4 mm were tolerable; however, in the Z direction, error values exceeding 1 mm were beyond the tolerance level. This suggests that for high and low dose areas, errors in the direction same as the progress direction in the treatment region have a more sensitive dose distribution. If the guidelines for set-up errors are established at the institutional level through continuous research in the future, it will be possible to provide good quality treatment using junctions.