• Title/Summary/Keyword: Receiving area

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Analysis of Relationship Between Water Quality Parameters in Agricultural Irrigation Reservoirs and Land Uses of Associated Watersheds (농업용저수지 유역의 토지이용과 수질항목 간의 상관관계 분석)

  • Yoon, Chun-Gyeong;Lee, Sae-Bom;Jung, Kwang-Wook;Han, Jung-Yoon
    • Korean Journal of Ecology and Environment
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    • v.40 no.1
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    • pp.31-39
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    • 2007
  • Monitoring data of 48 agricultural irrigation reservoirs from 1999 to 2004 was analyzed for water quality characteristics including biochemical oxygen demand $(BOD_5)$, chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP), and chl-${\alpha}$. Land uses of the watersheds associated with these reservoirs were determined for residential, forest, upland, paddy and miscellaneous, and regressed against water quality characteristics. Correlation analysis showed that forest land use was negatively correlated with all the water quality characteristics implying it's beneficial effects in water quality perspectives. Other land uses including residential, upland, and paddy generally illustrated positive correlation with water quality characteristics, which indicates most human activities of the watershed could degrade water quality of the receiving water bodies. Paddy land use partially contributed to the water quality degradation in contrast to the previous studies. It might be attributed to the relatively clean water quality of the study area, where even slight pollutant loading could degrade sensitively water quality. Further investigation is recommended for the effect of proximity as well as land use portions on the water quality of receiving water body.

Convergence Study on Unmet Demand and Influencing Factors in Advanced Cancer Patients Receiving Conventional Chemotherapy (고식적 항암화학요법 받는 진행성 암환자의 미충족 요구와 영향요인에 대한 융합적 연구)

  • Youm, Myeong-Ja;Park, Jeong Sook
    • Journal of the Korea Convergence Society
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    • v.11 no.11
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    • pp.433-441
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    • 2020
  • This study was attempted to use as basic data for developing a nursing intervention program suitable for terminal cancer patients by analyzing the unmet needs of advanced cancer patients receiving palliative chemotherapy and identifying the influencing factors. The subject of the study consisted of 71 patients with advanced cancer who were admitted to a university hospital and received palliative chemotherapy, and the research tool used CNAT (Comprehensive Needs Assessment tool in Cancer) developed by Shin et al., and data analysis was an independent sample. It was analyzed by t-test, ANOVA and multiple regression analysis. As a result of the study, the medical staff's area was the highest at 2.34 ± 0.63 out of 4 points, followed by psychological problems (2.09 ± 0.53) and information education (1.69 ± 0.45). Factors influencing unmet needs include educational background (β=.207, p=.047), thoughts on death (β=-.269, p=.018), diagnosis (β=-.283, p=. 013). Based on the results of this study, it is necessary to consider the needs of the medical staff in advanced cancer patients, provide psychological support, and consider ways to meet the needs according to academic background and diagnosis.

Mental Health Literacy and Vulnerable Group Analysis of Korea (한국인의 정신건강이해력 평가와 취약집단분석)

  • Seo, Mikyoung;Rhee, Minkyu
    • Korean Journal of Social Welfare
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    • v.65 no.2
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    • pp.313-334
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    • 2013
  • A study aims to assess Korean mental health literacy and analyze the characteristics of vulnerable population. This study presented typical vignettes of schizophrenia, depression and alcoholism to 1,197 adults randomly. All respondents were asked for recognition of mental illness, beliefs about causes, professional help and self-help, stigma for receiving psychiatric treatment for the person described. The results showed that the recognition of mental health problem in a vignette was very poor and that personal causes were seen by public as more important than environmental and bio-genetic causes. When the public were asked about various professional therapies and self-help activities, psychotherapy was favored while other professional help were considered to be less helpful than self-help activities. Among professionals, psychiatrist were viewed as most helpful. We used cluster analysis to compare high mental health literacy group with low mental health literacy group(vulnerable population). Vulnerable population were found to be more aged and to live in county area. We proposed government initiated program for enhancing public mental health literacy.

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CYP2D6 Genotype and Risk of Recurrence in Tamoxifen Treated Breast Cancer Patients

  • Yazdi, Mohammad Forat;Rafieian, Shiva;Gholi-Nataj, Mohsen;Sheikhha, Mohammad Hasan;Nazari, Tahereh;Neamatzadeh, Hossein
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.15
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    • pp.6783-6787
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    • 2015
  • Background: Despite consistent pharmacogenetic effects of CYP2D6 on tamoxifen exposure, there is considerable controversy regarding the validity of CYP2D6 as a predictor of tamoxifen outcome. Understanding the current state of evidence in this area and its limitations is important for the care of patients who require endocrine therapy for breast cancer. Materials and Methods: A total of 101 patients with breast cancer who received tamoxifen therapy for at least 3 years, were genotyped for common alleles of the CYP2D6 gene by nested-PCR and restriction fragment length polymorphism PCR. Patients were classified as extensive or poor metabolizers (PM) based on CYP2D6*4 alleles in 3 different groups according to the menopause, Her2-neu status, and stage 3. Results: The mean age of the patients with the disease recurrence was $50.8{\pm}6.4$ and in non recurrent patients was $48.2{\pm}6.8$. In this study 63.3% (n=64) patients were extensive metabolizers and 36.6% (n=37) were poor metabolizers. Sixty four of the 101 patients (63.3%) were Her2-neu positive. For tamoxifen-treated patients, no statistically significant difference in rate of recurrence observed between CYP2D6 metabolic variants in stage 3 and post-menopausal patients. However, there was a significant association between CYP2D6 genotype and recurrence in tamoxifen-treated Her2-neu positive patients. Compared with other women with breast cancer, those with Her2-neu positive breast cancer and extensive metabolizer alleles had a decreased likelihood of recurrence. Conclusions: This study for the first time demonstrated significant effects of CYP2D6 extensive metabolizer alleles on risk of recurrence in Her2-neu positive breast cancer patients receiving adjuvant tamoxifen therapy. Therefore, CYP2D6 metabolism, as measured by genetic variation, can be a predictor of breast cancer outcome in Her2-neu positive women receiving tamoxifen.

Comparative Analysis of pre and Post Digital X-ray Equipment Construction and Web-Based Wireless Network Environment Construction for Medical Screening Vehicles (Digital X-ray장비 구축 검진차량의 웹 기반 무선 네트워크 환경 구축 전과 후의 비교분석)

  • Ryu, Young-Hwan;Kweon, Dae-Cheol;Goo, Eun-Hoe;Dong, Kyung-Rae;Choi, Sung-Hyun;Jang, Young-Ill
    • Korean Journal of Digital Imaging in Medicine
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    • v.12 no.2
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    • pp.103-111
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    • 2010
  • A total of 200 hospital employees participated in this study from January 2009 to June 2010. For the survey, each participant was given necessary items for external health exams. Cronbach's alpha was calculated for the survey regarding wireless networks. There was a need for educating data processing workers in the medical field regarding fundamental information prior to wireless network construction. The reason is high scores would be collected, which would reflect knowledge regarding data processing used at hospitals and the differences between paper charts and electronic charts. However, low scores were obtained which reflected knowledge regarding the differences between wired and wireless networks and Mini-PACS. Time for each patient was shortened to a maximum of three minutes and minimum of one minute for treatment and transmitting medical images when comparing pre and post wireless network construction(p < 0.01). Scores from the pre and post construction survey increase 1.98, 1.65, and 1.43 points for activity in the health screening area, usage of space in the health screening vehicle, and patient information storage respectively(p < 0.05). The number of patients receiving external health screenings twelve times was 3,655 prior to construction of a wireless network system. However, the number increased to 4,265 after construction. The increasing percentage was 17% in total. Prior to construction, X-ray images were taken 527 times, but after construction of a wireless network, this number growed to 1,194 and it was 116% increase. The loss of patient's medical treatment charts was reduced from 19.8% to 18.7% after construction. We believe that educating medical workers on Mini-PACS and Mini-OCS Systems will not only increase their efficiency but also make patients receiving better treatment.

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Dynamic Behavior Character of Vessel Using DGPS and Motion Sensor (DGPS와 Motion Sensor를 이용한 선박 동적 거동특성)

  • Choi, Chul-Eung;Kim, Youn-Soo
    • Journal of Korean Society for Geospatial Information Science
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    • v.12 no.4 s.31
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    • pp.35-43
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    • 2004
  • Multibeam Echosounder system is the latest technology of a hydrographic survey utilized in producing an electronic nautical chart, obtaining a DEM with high precision, making a moving image by Swath surveying a wide area. As a fundamental study for improving the precision of MBES, we compared and analyzed measurements of DGPS and Motion sensor, and studied for the dynamic characteristics of vessel's movements. DGPS was installed in front and in the rear and on both side or the vessel and surveyed. The receiving precision of surveyed GPS results was obtained to the satisfactory extent that was possible to valuate the accuracy of Motion sensor as 0.0016$^{\circ}$ of the roll value and 0.0009$^{\circ}$ of the pitch value. The relationship between the values of heading, pitch, and roll in Motion sensor and the data of DGPS was proportional correlation. In addition, it is considered that deviations by elements like rapid turning and vibration of the vessel will be occurred, although the correlation of each deviation according to each amount or change is proportional. It is suitable that GPS installs in the central line of the vessel that is less affected than other places by waving because the amount of change in the tide level obtained from GPS survey and the value of heave are similar with the values taken by Motion sensor, and the velocity of GPS is different from installed places. The accuracy of the final result from MBES could be affected by the values of gyro and Motion sensor inputted to MBES processor because there were intervals of 15s and 13s of receiving time in gyro and Motion sensor respectively compared with the real-time measurements of DGPS.

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A Study on Sickness and Utilization of Medical Care in a Rural Area of Kyunggido (일부(一部) 농어촌주민(農漁村住民)의 상병(傷病) 및 의료이용도(醫療利用度)에 관(關)한 조사연구(調査硏究))

  • Chang, Yong-Tae
    • Journal of Preventive Medicine and Public Health
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    • v.9 no.1
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    • pp.139-146
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    • 1976
  • This survey attempted to determine the overall health situation in Kyunggido in terms of sickness prevalence, sickness distribution, demand for medical care by type, and utilization of medical care. The survey was conducted on 766 households, or 4,065 people, from July 1-31, 1975. The findings from the survey are as follows: 1) In terms of age distribution, 28.7% of the sample was from 10-19, the 40-49 age group was the next largest group, and those over 60 made up 7% of the sample. 2. The education distribution is as follows, 30.4% completed primary school, 22.4% had no formal education, 20.6% attended but did not onplete primary school, and 1.8% attended unversities or higher. 3) In terms of occupation, 55.9% were unemployed or family employees, which represents a large dependent population, 30.4% of the workers were employed in farming or fisheries. 4. The marital status is as follows, 58.8% of the women were married, 32.3% unmarried, and 7.5% divorced. 5) The prevalence rate of mouthy illness was 19.7% of 100 infant, 42.8% became fatally ill within the first year of life. This is a very high percentage compared with more developed nations. 6) Of those reportion on illness, 54.6% sought treatment. The rate of treatment was highest in infants at 77.7%. Us age increased, demand for treatment decreased to 43.1% for those in the aldest age group. The oldest age group also had the highest rate of non treatment at 56.8%. 7) The demand for medical care showed that 65.6% utilized drug stores, 20.2% utilized hospitals and clinics, 5.4% used herbdrug-stores and herb clinices, and 3.9% relied upon folk medicine and withch craft. 8) The utilization of medical facilties by sex is as follows, 65.1% of the men and 66.0% of the women used drug stores, and 19.2% of the men and 20.2% of the women used hospitals and clinics. However, more men (3.5%) were hospitalized than women (1.8%) 9) In terms of out-patient care, the largest age group of males was 10-19 (28.2%), and the largest age group of females was 0-9 (30.8%). There was no sex difference in the use of western pharmacies. Menaged 30-39 and women aged 50-59 were the most frequent users of herb clinics. 10) The rate of receiving treatment at drugstore hospitals went towards declining level in the second case of what While increaing much more at herb clinics and folk medicines in the second case than the first one. 11) After primary utilization of hospitals, 32.7%. of the adults aged 20-59 used drug-stores as a secondary source of care, and 12.8% of children and youth under age 20 continued receiving care at hospitals. 12) After primary utilization of drug-stores, 32.5 % of the adults continued to seek care at drug stores and 1.8% used hospitals. 4.2% of those over age 60 utilized folk medcine and witch craft.

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Analysis of visible light communication system using 15 watt LED and 40 watt solar panel (소형 창고형 공장 적용을 고려한 15와트 LED 조명과 40와트 태양광 패널을 활용한 가시광통신 송수신 시스템 분석)

  • Woo, Deok Gun;Mariappan, Vinayagam;Park, Jong Yong;Lee, Jong Hyeok;Kim, Young Min;Cha, Jae Sang
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.11 no.5
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    • pp.608-614
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    • 2018
  • In addition to the diffusion of ICT technology, various protocols of short range wireless communication technology are being applied for efficient information operation. However, due to limitations of short-range wireless communication, communication is not smooth in places where frequency environment is poor, such as frequency confusion and warehouse type factory. When an alternative is needed. The development of LED technology and expansion of infrastructure through LED based visible light communication is attracting attention as an alternative and spreading the usage in wide range now a days. In addition, the infrastructure has been expanded with solar panels in response to the development of smarthome built-in with renewable energy. In this situation, visible light communication using PD has been limitedly applied in a near environment where the receiving angle of the PD and the ambient light ensure the LoS and the influence of the ambient light is small. In order to solve this problem, we have implemented visible light communication using LED lighting with large current infrastructure and solar panel with large receiving area, and proposed a circuit for restoring accurate data even in ambient light. Through this study results, it is expected that visible light communication can be more widely used and this result used as the base data for visible light communication research using the solar panel as the receiver.

Social Relations between Individuals Based on Courtship and Attack Behaviors of Reeves' Turtle (Mauremys reevesii) in Captivity (사육 상태의 남생이(Mauremys reevesii)의 구애와 공격적 행동에 따른 개체 간 사회적 관계)

  • Ji-Won Kim;Hee-jin Kang;Seung-Min Park;Jae-Hyeok Choi;Du-Kang Jang;Seong-Ik Jo;Ha-Cheol Sung
    • Korean Journal of Environment and Ecology
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    • v.37 no.1
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    • pp.76-85
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    • 2023
  • This study aimed to understand social interactions by observing the courtship and attack behavior between individuals of 15 (6 females and 9 males) Reeves' turtle (Mauremys reevesii) in captivity in the Wolchulsan National Park. CCTV was installed in the study area from May 18, 2020 to October 19, 2020 and recorded 3 days a week (24 hours/day) for a total of 64 days and analyzed at intervals of 10 minutes per hour. Male turtle courtship was observed 884 times in total, with the heaviest females receiving the highest courtship frequency (357 times) and the smallest females receiving the least courtship (3 times). Of a total of observed 259 aggressive behaviors, 30 were for female to female, 81 for male to male, and 148 for female to male. Dominance hierarchy identified based on the result ranked females higher overall than males, and the larger the body, the higher the ranking. This study was the first in Korea to confirm individuals with high probability of reproduction through the frequency of courtship in the Reeves' turtle and investigate dominance hierarchy according to attack behavior. Our results can be used as reference behavioral data for managing and protecting the endangered Reeves' turtles and will help us understand their social structure.

The Development of Predictive Multiclass Dynamic Traffic Assignment Model and Algorithm (예측적 다중계층 동적배분모형의 구축 및 알고리즘 개발)

  • Kang, Jin-Gu;Park, Jin-Hee;Lee, Young-Ihn;Won, Jai-Mu;Ryu, Si-Kyun
    • Journal of Korean Society of Transportation
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    • v.22 no.5
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    • pp.123-137
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    • 2004
  • The study on traffic assignment is actively being performed which reflect networks status using time. Its background is increasing social needs to use traffic assignment models in not only hardware area of road network plan but also software area of traffic management or control. In addition, multi-class traffic assignment model is receiving study in order to fill a gap between theory and practice of traffic assignment model. This model is made up of two, one of which is multi-driver class and the other multi-vehicle class. The latter is the more realistic because it can be combined with dynamic model. On this background, this study is to build multidynamic model combining the above-mentioned two areas. This has been a theoretic pillar of ITS in which dynamic user equilibrium assignment model is now made an issue, therefore more realistic dynamic model is expected to be built by combining it with multi-class model. In case of multi-vehicle, FIFO would be violated which is necessary to build the dynamic assignment model. This means that it is impossible to build multi-vehicle dynamic model with the existing dynamic assignment modelling method built under the conditions of FIFO. This study builds dynamic network model which could relieve the FIFO conditions. At the same time, simulation method, one of the existing network loading method, is modified to be applied to this study. Also, as a solution(algorithm) area, time dependent shortest path algorithm which has been modified from existing shortest path algorithm and the existing MSA modified algorithm are built. The convergence of the algorithm is examined which is built by calculating dynamic user equilibrium solution adopting the model and algorithm and grid network.