• Title/Summary/Keyword: Science experience

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Selecting Suitable Riparian Wildlife Passage Locations for Water Deer based on MaxEnt Model and Wildlife Crossing Analysis (MaxEnt 모형과 고라니의 이동행태를 고려한 수변지역 이동통로 적지선정)

  • Jeong, Seung Gyu;Lee, Hwa Su;Park, Jong Hoon;Lee, Dong Kun;Park, Chong Hwa;Seo, Chang Wan
    • Journal of Korean Society for Geospatial Information Science
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    • v.23 no.1
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    • pp.101-111
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    • 2015
  • Stream restoration projects have become threats to riparian ecosystem in Rep. of korea. Riparian wildlife becomes isolated and the animals are often experience difficulties in crossing riparian corridors. The purposes of this study is to select suitable wildlife passages for wild animals crossing riparian corridors. Maximum entropy model and snow tracking data on embankment in winter seasons were used to develop species distribution models to select suitable wildlife passages for water deer. The analysis suggests the following. Firstly, most significant factors for water deer's habitat in area nearby riparian area are shown to distance to water, age-class, land cover, slope, aspect, digital elevation model, tree density, and distance to road. For the riparian area, significant factors are shown to be land cover, size of riparian area, distance to tributary, and distance to built-up. Secondly, the suitable wildlife passages are recommended to reflect areas of high suitability with Maximum Entropy model in riparian areas and the surrounding areas and moving passages. The selected suitable areas are shown to be areas with low connectivity due to roads and vertical levee although typical habitats for water deer are forest, grassland, and farmland. In addition, the analysis of traces on snow suggests that the water deer make a detour around the artificial structures. In addition, the water deer are shown to make a detour around the fences of roads and embankment around farmland. Lastly, the water deer prefer habitats around riparian areas following tributaries. The method used in this study is expected to provide cost-efficient and functional analysis in selecting suitable areas.

Family Caregivers' Quality of Life, Depression and Anxiety according to Symptom Control in Hospice Patients (호스피스 환자의 증상조절에 따른 가족간병인의 삶의 질과 우울, 불안)

  • Kim, Yun Hee;Lee, Seung Hun;Lim, Ho Seop;Choi, Young Jin;Kim, Yun Jin;Lee, Sang Yeoup;Lee, Jeong Gyu;Jeong, Dong Wook;Yu, Kyoung Hwa
    • Journal of Hospice and Palliative Care
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    • v.18 no.4
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    • pp.314-321
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    • 2015
  • Purpose: It is well known that a terminal cancer condition affects not only patient themselves but their family members because the patients experience a variety of symptoms. This study was aimed to investigate modifiable factors that influence family caregivers' quality of life, depression, and anxiety. Methods: From January 2015 through May 2015, a survey was conducted with 61 family caregivers of hospice patients who were hospitalized in two university hospitals and one municipal hospital in Busan. The questionnaire was consisted of characteristics of family caregivers and patients, the Korean version of the Caregiver Quality of Life Index-Cancer (CQOLC-K), Beck's Depression Inventory II (BDI-II), Beck's Anxiety Inventory (BAI), and patient's symptom controlling scores rated by family caregivers. Results: Family caregivers' depression was associated with religion. Quality of life and depression of family caregivers were also influenced by monthly household income. Patient age was inversely related to family caregiver's quality of life ($r_s=-0.259$, P=0.043). Family caregivers' quality of life was associated with patient's anxiety (r=0.443, P=0.001). Family caregivers' depression was affected by patient's constipation (r=0.276, P=0.046), anxiety (r=0.508, P<0.001), and daytime drowsiness (r=0.377, P=0.005). And family caregivers' anxiety was influenced by patients' sleep disturbance (r=0.276, P=0.046), depression (r=0.297, P=0.031), and anxiety (r=0.357, P=0.009). Conclusion: According to our findings, family caregivers had higher quality of life and less depression and anxiety when symptoms in hospice patients were well controlled.

Spiritual Welling-Being, Attitude to Death and Perception of Hospice Care in College Students (대학생의 영적안녕과 죽음에 대한 태도 및 호스피스 인식)

  • Lee, Young Eun;Choi, Eun Ah;Lee, Kyoung Eun
    • Journal of Hospice and Palliative Care
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    • v.18 no.4
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    • pp.294-305
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    • 2015
  • Purpose: The purpose of this study is to provide baseline data for the development of an educational program for hospice care for college students. Methods: A survey was conducted at three universities in B city with 143 students from September 5, 2014 through September 26, 2014. The data were analyzed by the SPSS 18 program. This study was approved by IRB. Results: The college students' spiritual well-being was at a medium level. Their attitudes to death were neutral, and perception of hospice care was at a medium level. Most of the participants (93.0%) had no training in hospice care. The participants' awareness of the purpose of hospice care was at a relatively high level. Their awareness of the need for hospice care was at a moderate level. The participants' spiritual well-being and their attitudes to death showed a weak but positive correlation (r=0.179, P=0.030). The relationship between their spiritual well-being and awareness of hospice care were positively correlated (r=0.203, P=0.015). Conclusion: The participants' perception of hospice care was low. Most of them had no experience of hospice care education. Also, the higher the spiritual stability was, the higher the participants' perception of the purpose and the necessity of hospice care was. And their perception of the hospice care varied depending on their family relationship, satisfaction with school life, and cognition of hospice care. Therefore, we need consider these variables to develop a hospice education program to enhance college students' attitudes to death and their perception of hospice care.

A Study on Presidential Security Activities of Military Intelligence Investigation Agency - Since the Korean War, from 1950 to the present - (군(軍) 정보수사기관의 대통령 경호활동 고찰: 1950년 한국전쟁 이후부터 현재까지)

  • Choi, Jong-Young;Jung, Ju-Ho
    • Korean Security Journal
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    • no.53
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    • pp.63-79
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    • 2017
  • Defence Security Command is the only military intelligence and investigation agency which is in charge of safeguarding military information and investigating specific crimes such as subversion and disloyalty in military. While the presidential security provided by Defence Security Command, along with Presidential Security Service(PSS) and the police, forms one of three pillars sustaining presidential security, its works and activities have been rarely known to the public due to the military confidentiality. This study looks into some data specialized into the presidential security among works of Defense Security Command by using various resources such as biographies of key people, media reports, and public materials. It reviews the presidential security works in a historical sense that the works have developed and changed in accordance with the historical changes of Defense Security Command, which was rooted in Counter-Intelligence Corps (Teukmubudae in Korean) in 1948 and leads to the present. The study findings are as follows. First, when the Korean War broke out in 1950 and since then the South Korea was under the threat of the North Korean armed forces and left wing forces, Counter-Intelligence Corps(Bangcheopdudae in Korean) took the lead in presidential security more than the police who was in charge of it. Secondly, even after the Presidential Security Office has founded in 1963, the role of the military on presidential security has been extended by changing its titles from Counter-Intelligence Corps to Army Security corps to Armed Forces Security Command. It has developed their provision of presidential security based on the experience at the president Rhee regime when they could successfully guard the president Rhee and the important government members. Third, since the re-establishment into Defence Security Command in 1990, it has added more security services and strengthened its legal basis. With the excellent expertise, it played a pivotal role in the G20 and other state-level events. After the establishment of the Moon Jaeinin government, its function has been reduced or abolished by the National Defense Reform Act. However, the presidential security field has been strengthening by improving security capabilities through reinforcing the organization. This strengthening of the security capacity is not only effective in coping with the current confrontation situation with the hostile North Korean regime, but also is important and necessary in conducting constant monitoring of the military movement and security-threat factors within military during the national security events.

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Bachelard's Theory of Imagination and the Philosophical Bases of Creativity (바슐라르의 상상력 이론과 창의력의 철학적 기초)

  • Yoo, Kyoung-Hoon
    • Journal of Gifted/Talented Education
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    • v.19 no.3
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    • pp.603-646
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    • 2009
  • This paper explores in depth Gaston Bachelard's theory of imagination so as to establish the philosophical bases of creativity. While he had begun his studies on imagination to eliminate unreliable subjectivity hampering objectivity of philosophy of science, he was fascinated to become a philosopher of imagination by its unlimited power. Since his theory of imagination marked a prominent spot in the history of Western idea, this paper will seek its significant implications that will also shed light on the philosophical grounds of creativity. The best way to approach his theory is to differentiate whether imagination is the power of forming images or that of transforming them. If not misguided by surface simplicity of the aforementioned differentiation, it will be revealed that it has accrued strata in the history of Western idea. The power of forming images is related to theory of mimesis or of representation, and to ocularcentric and logo-centric structures. Bachelard strongly opposes to the theory of imagination as power of forming images, since, if it is so, its expansion and development are not possible. He thereby constructs the theory of imagination as power of transforming images. The force of movement lies at the core of his theory. Imagination as an ability to intuit movement is directly related to the problem of change in the history of Western idea. If an entity is incessantly changes itself, it becomes a crucial role of imagination to capture the force perse in the perpetual movement without distortedly and abruptly fixing it at a still point of time and space. Bachelard criticizes such a method that makes movement a controllable entity consisting of partitioned moments of space; instead, he constructs theory of imagination that reveals the true power of indispensable movement. Furthermore, it will be revealed that Bachelard's theory has more affinities with Kantian imagination and reflective judgement of aesthetics than the past researches on Bachelard showed. This paper, by means of the above investigation, will transcend the superficiality of defining what are Bachelard's formal, material, and dynamic imaginations; simultaneously, it will bear philosophical conditions of possibility that makes us experience imagination fully. These conditions also become the philosophical foundations of creativity. It will draw to a provisional close its imaginative journey of everlasting movement by making ontological and ethical dimensions of imagination and creativity.

A Study on the Importance and Needs of Clinical Practice in Ophthalmic Optics for Students and Optical Shop Owner (안경광학과 임상실습에 대한 학생과 산업체의 중요도와 필요도에 관한 연구)

  • Shin, Jin-Ah;Jung, Sae-Hoon;Lee, Ok-Jin
    • Journal of Korean Ophthalmic Optics Society
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    • v.17 no.4
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    • pp.353-363
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    • 2012
  • Purpose: To establish basic data for effective clinical practice program by investigating the clinical practice importance and needs for ophthalmic optics students and optical shop owners. Methods: 263 students and 100 optical shop owners who had experience in clinical practice were surveyed in importance and needs of clinical practice and analyzed the results. Results: In general importance for clinical practice, realized the optician's job aptitude $4.29{\pm}0.72$ was highest among students and understanding the work of optician $4.48{\pm}0.52$ was highest among shop owners. Importance of specific duty for clinical practice, communication strategy & customer service was highest in both students $4.46{\pm}0.70$ and shop owners $4.18{\pm}0.86$ each. Importance of time & optical shop for clinical practice, supportive guide and education by opticians & shop owner was highest in both students $4.53{\pm}0.66$ and shop owners $4.35{\pm}0.59$ each. Importance of school support for clinical practice, administrative support for optical shop and students was highest among students $4.10{\pm}0.78$ and orientation from the school before clinical practice $3.98{\pm}0.68$ was highest among shop owners. In general needs for clinical practice, expanding the clinical practice field $4.43{\pm}0.73$ was highest among students and needs of clinical practice in the curriculum $4.39{\pm}0.65$ was highest among shop owners. Needs of specific duty for clinical practice, spectacle fitting $4.40{\pm}0.71$ was highest among students and ophthalmic dispensing $4.12{\pm}0.83$ was highest among shop owners. Conclusions: For effective clinical practice, clinical practice program should be develop which is reflecting the importance and needs of students and optical shop and also cooperation and interest of school and optical shop are required.

A study of pain perception related to IV therapy in hospitalized preschool children and their mothers (정맥주사와 채혈시 학령전기 아동과 어머니가 인지하는 동통)

  • 임지영
    • Journal of Korean Academy of Nursing
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    • v.22 no.1
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    • pp.49-67
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    • 1992
  • Most hospitalized children will experience physical pain as well as psychological distress. Preschool children's pain perception related to painful procedures can increase due to elevated anxiety and fear because they do not have understanding logical of their disease and hospitalization. In particular, they are distressed about needle - related procedures which are feared because they are seen to be a cause of bodily damage. This descriptive study attempted to identify pain perception levels in preschool children and their mothers. A self-reporting measurement and behavioral observation were used to collect the data. A total of 25 hospitalized preschool children and their mothers were investigated and data were collected about 60 painful procedures. Data collection was carried out by the researcher and two trained investigators from November first to December tenth. Three insruments were used to collect the data : Faces Pain Rating Scale(FPRS) developed by Beyer was used to measure the degree of preschool children's pain perception about painful procedures. The Visual Analogue Scale(VAS) devised by Huskisson was used to assess the degree of mothers' pain perception about their children's painful procedures. A Pain Behavioral Checklist based on the Procedure Behavior Check List by LeBaron and Zelter and modified by the researcher was used to observe behaviors of preschool children, their mothers, and nurses when the painful procedures took place. The data were analyzed by an SPSS program, and were tested using real numbers, percentages, Pearson correlation coefficient, t-test, and ANOVA. The results of this study are as follows : 1. Of all the painful procedures, the mean score for the FPRS for the preschool children's pain perception was 4.02 points, and the mean score for the VAS of mothers' pain perception was 10.92 points. 2. A Positive correlation which was statistically significant was found between the pain perception of preschool children and their mothers (r=.53, p<.01). that is, the higher the children's pain perception was, the higher their mothers' pain perception was. 3. The characteristics of the painful procedures related with children's pain perception as follows : The type of painful procedure was found to be statistically significant (F=23.44, p<.01), Among the three procedures Ⅳ starting was found to be perceived as the most painful procedures to the children. The greater the number of times that the procedure had been done, the higher the pain perception was (F=4.44, p<.01), and the longer the duration of the procedure, the higher the pain perception wa(r=.30, p<.05). Pain perception in the treatment room was higher than in the children's room(t=6.30, <.01), pain perception in the mother's presence was the higher than when the mother was not present (t=2.91, p<.01). 4. The characteristics of the painful procedures related with the mothers' pain perception as follows : The type of painful procedure was found to be statistically significant(F=6.01, p<.01). Among the three procedures Ⅳ sampling was found to be perceived as the most painful procedures to the mothers. The greater the number of times that the procedure had been done, the higher the pain perception was (F=5.95, p<.01), and the longer the duration of the procedure, the higher the pain perception was (r=.31, p<.05). Pain perception in the treatment room was higher than in the children's room (t=3.51, p<.01), but pain perception in the mother's presence showed statistically significant no difference. 5. Of all of the 19 children's behaviors during the painful procedures, the most frequent behaviors observed Were as follows in order of frequency “crying”, “screamirig”, “facial grimacing”, “physical resistance”, Of all of the nine methers' behaviors, the most frequent by observed in “console children”, “hold children”, “applaud children”, Of all of the 11 nurses' behaviors during the painful procedures, the mast frequent in order were “smiling”, “physical restraint”, “console children”, “praise children”. 6. A positive correlation between children's and mothers' pain perception and children's behaviors was found to be statistically significant (r=.65, p<.01, r=67, p<.01). Also the relationship between children's and mothers' pain percertion, and mothers' behavior was found to be statistically significant (r=.57, p<. 01, 4=.60, p<.01). The relationship between children's pain perception and nurses' behaviors was also found to be statistically significant (r=.46, p<.01), but there was difference between mothers' pain perception and nurses' behaviors.

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Search for the Meaning of Social Support in Korean Society (Social Support의 한국적 의미)

  • 오가실;서미혜;이선옥;김정아;오경옥;정추자;김희순
    • Journal of Korean Academy of Nursing
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    • v.24 no.2
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    • pp.264-277
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    • 1994
  • In Korea the concept of social support was first used as a research concept in nursing and has not had much application in the clinical field. Another problem is that research on social support has used a direct translation of the words “social support” into Korean as “sawhejuk jiji”. Three questions were posed to direct the re-search. 1) Is there a concept of social support in Korean society? 2) if so, what words or expressions are used to de-scribe it? 3) further, if so, how is social support structured and how does it function? In order to answer the research questions a three-step research methodology was used : The first step consisted of a literature review on re-search related to social support and on information on the background of, and the way of thinking re-lated to interpersonal relations among Korean people. The second step, which was done to identify whether there is a concept of social support in korean society, involved interviewing a sample of the population. The third step involved a panel discussion that included the members of the research team and three consultants, a sociologist, a philosopher and a scholor in korean literature. A review of the literature on interpersonal relationships in traditional korean society identified a four cirole structure that explains interpersonal relationships. The first circle with “me” at the center is the family but here “me” disappears into the “we” that is essential for a cooperative agricultural society. In the second circle are those close to “me” but outside the family. The third circle includes those with whom “I ” have infrequent but regular contact and with whom correct conduct is important. The last circle is all the people with whom “I” have nothing in common. They are excluded in interpersonal relationships. The literature on interpersonal relationships showed that within the traditional Korean society people lived in villages where most people were very familiar with each other. “Yun”, the social network established the connection and “Jung”, the feeling of affection increased with time as the connection was strengthened. In the traditional village psychological support was provided through “Mallaniki”, “Pumashi” and “Kae” with the latter two also providing material support. In modern Korea there are more informal and formal social networks, like social services and community activities on the formal level and cultural and leisure groups along with “kae’s on the informal level. But even with this modern variety of groups, most social support comes from informal networks that resemble the traditiorlal “Pumashi”, “Kai” md “Mallaniki”. The six member research team interviewed 65 people in order to identify whether there is a concept of social support and then analysed their responses. There were 20 different words describing the reception of the social support and these could be grouped into seven major categories : virtuous, fortunate, helped, supported, blessed, attached(receiving affection) and receiving (grace) benevolence. there were 27 words describing the act of social support which could be categorized into seven major categories : love, looking after, affection(attachment), kindness(goodness), faith, psychological help and material help. for the meaning of social support translated as “sawhe juk jiji” there were a total of 14 different answers which could be categorized into 3 major categories : help, agreement, and faith. In third step, the results of the literature review and the answers to the questions were discussed in a pannel. The results of the discussion led to the following definition of social support in Korea which is shaped like a the four sided pyramid on a base. Social support is the apex of the pyramid and four sides are made up of : “do-oom” (both emotional and material help), “jung” (connectedness, or relationship bound by affection, regard or shared common experience ), “midum” (faith or belief in), “eunhae” (kindness or benevolence). The research team identified “Yun”( the basic network of relationships) as the base of the pyramid and as such the foundation for the components of social support in Korean culture. On “Yun” rest the other four components of social support : “Jung”, “Midum”, “Do-oom”, and “Eunhae”, For social support to take place there must be “Yun”. This is an important factor in social support. In private social network “Jung” is an essential factor in social support. But not in the public social network. “Yun” is a condition for “Jung” and “Jung” is the manifestation of support.

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Jet Lag and Circadian Rhythms (비행시차와 일중리듬)

  • Kim, Leen
    • Sleep Medicine and Psychophysiology
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    • v.4 no.1
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    • pp.57-65
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    • 1997
  • As jet lag of modern travel continues to spread, there has been an exponential growth in popular explanations of jet lag and recommendations for curing it. Some of this attention are misdirected, and many of those suggested solutions are misinformed. The author reviewed the basic science of jet lag and its practical outcome. The jet lag symptoms stemed from several factors, including high-altitude flying, lag effect, and sleep loss before departure and on the aircraft, especially during night flight. Jet lag has three major components; including external de synchronization, internal desynchronization, and sleep loss. Although external de synchronization is the major culprit, it is not at all uncommon for travelers to experience difficulty falling asleep or remaining asleep because of gastrointestinal distress, uncooperative bladders, or nagging headaches. Such unwanted intrusions most likely to reflect the general influence of internal desynchronization. From the free-running subjects, the data has revealed that sleep tendency, sleepiness, the spontaneous duration of sleep, and REM sleep propensity, each varied markedly with the endogenous circadian phase of the temperature cycle, despite the facts that the average period of the sleep-wake cycle is different from that of the temperature cycle under these conditions. However, whereas the first ocurrence of slow wave sleep is usually associated with a fall in temperature, the amount of SWS is determined primarily by the length of prior wakefulness and not by circadian phase. Another factor to be considered for flight in either direction is the amount of prior sleep loss or time awake. An increase in sleep loss or time awake would be expected to reduce initial sleep latency and enhance the amount of SWS. By combining what we now know about the circadian characteristics of sleep and homeostatic process, many of the diverse findings about sleep after transmeridian flight can be explained. The severity of jet lag is directly related to two major variables that determine the reaction of the circadian system to any transmeridian flight, eg., the direction of flight, and the number of time zones crossed. Remaining factor is individual differences in resynchmization. After a long flight, the circadian timing system and homeostatic process can combine with each other to produce a considerable reduction in well-being. The author suggested that by being exposed to local zeit-gebers and by being awake sufficient to get sleep until the night, sleep improves rapidly with resynchronization following time zone change.

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The Prediction of Currency Crises through Artificial Neural Network (인공신경망을 이용한 경제 위기 예측)

  • Lee, Hyoung Yong;Park, Jung Min
    • Journal of Intelligence and Information Systems
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    • v.22 no.4
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    • pp.19-43
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    • 2016
  • This study examines the causes of the Asian exchange rate crisis and compares it to the European Monetary System crisis. In 1997, emerging countries in Asia experienced financial crises. Previously in 1992, currencies in the European Monetary System had undergone the same experience. This was followed by Mexico in 1994. The objective of this paper lies in the generation of useful insights from these crises. This research presents a comparison of South Korea, United Kingdom and Mexico, and then compares three different models for prediction. Previous studies of economic crisis focused largely on the manual construction of causal models using linear techniques. However, the weakness of such models stems from the prevalence of nonlinear factors in reality. This paper uses a structural equation model to analyze the causes, followed by a neural network model to circumvent the linear model's weaknesses. The models are examined in the context of predicting exchange rates In this paper, data were quarterly ones, and Consumer Price Index, Gross Domestic Product, Interest Rate, Stock Index, Current Account, Foreign Reserves were independent variables for the prediction. However, time periods of each country's data are different. Lisrel is an emerging method and as such requires a fresh approach to financial crisis prediction model design, along with the flexibility to accommodate unexpected change. This paper indicates the neural network model has the greater prediction performance in Korea, Mexico, and United Kingdom. However, in Korea, the multiple regression shows the better performance. In Mexico, the multiple regression is almost indifferent to the Lisrel. Although Lisrel doesn't show the significant performance, the refined model is expected to show the better result. The structural model in this paper should contain the psychological factor and other invisible areas in the future work. The reason of the low hit ratio is that the alternative model in this paper uses only the financial market data. Thus, we cannot consider the other important part. Korea's hit ratio is lower than that of United Kingdom. So, there must be the other construct that affects the financial market. So does Mexico. However, the United Kingdom's financial market is more influenced and explained by the financial factors than Korea and Mexico.