• Journal of Biomedical Engineering Research
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• v.28 no.3
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• pp.348-354
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• 2007

Polymer actuators, which are also called as smart materials, change their shapes when electrical, chemical, thermal, or magnetic energy is applied to them and are useful in wide variety of applications such as microelectromechanical systems (MEMS), machine components, and artificial muscles. For this study, Polyaniline/carbon-nanotube polymer actuator that is one of electroactive polymer actuators was prepared. Since the nonlinear phenomena of hysteresis and a step response are essential considerations for practical use of polymer actuators, we have investigated the movement of the Polyaniline/carbon-nanotube polymer actuator and have developed an integrated model that can be used for simulating and predicting the hysteresis and a step response during actuation. The Preisach hysteresis model, one of the most popular phenomenological models of hysteresis, were used for describing the hysteretic behavior of Polyaniline/carbon-nanotube polymer actuator while the ARX method, one of system identification techniques, were used for modeling a step response. In this paper, we first expain details in preparation of the Polyaniline/carbon-nanotube polymer then present the mathematical description of our model, the extraction of the parameters, simulation results from the model, and finally a comparison with measured data.

• Journal of Hospice and Palliative Care
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• v.15 no.3
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• pp.147-154
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• 2012

Purpose: The purpose of this study is to understand family members' experience of deciding to withdraw life-sustaining treatments for terminally-ill patients in an unconscious state. Methods: Data were collected by performing an in-depth interview with eight terminally-ill patients' family members who decided to withdraw life-sustaining treatments. Colaizzi's phenomenological method was used for data analysis. Results: Questions were classified into 12 groups and finally into five categories. The five categories were about family members' frustration with patient's condition, emotional preparation for the patient's death upon medical professionals' recommendation, patient's wishes, exhaustion due to caring and past experiences related to life-sustaining treatment. Conclusion: Using the five categories, hospice and palliative professionals could better understand family members' decision making experience of withdrawing life-sustaining treatments for terminally-ill patients. Based on that, the family members could be provided with appropriate counseling and care, which in turn could improve hospice and palliative care intervention.

• Asian Oncology Nursing
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• v.4 no.2
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• pp.143-153
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• 2004

Death of spouse is the most heartbreaking stressful and inevitable tragic life event. In middle aged men who belong to the social middle class and accomplished their occupational success, experiences of spousal bereavement are great shock. The aim of this study was to find out how they overcome their mental and physical pain and to obtain the basic materials to develop suitable nursing care programs for them. The methodological approach of this study is Giorgi's phenomenological analysis meaning unit. This method also makes theme focal meaning, situated structural description and create general structural description grasped by participator's experience through situated structure description. This study performed from November 2002 to May 2004, and participators were four men. Data collected through in-depth personal interviews. which had been tapped and analysed the Giorgi's method. Finally, the five focal meaning below have been abstracted. Theme 1. Physical symptom loss of appetite, fatigue, insomnia. outbreak of illness, weight loss. Theme 2. life of spiritless lack of desire, sense of emptiness, unstableness, prosaic life. wandering. indifference of appearances, avoidance of meeting people. Theme 3. life of retrospction reflection for his wife, yearning, grief, muttering to himself, never-to-be forgotten wife, leading a lonely life. Theme 4. negative emotion reproaching, feeling hurt, marriage of daughter, feeling heavy, getting angry, sexual desire, awareness of his sinfulness. loneliness Theme 5. social support and adjustment getting his wife off his mind, curring favor with children, support and consolation by his daughter-in-law, appreciation for hospice nurse, considering remarriage, taking care of himself, good relation with his children. The result of this study showed that middle aged men bereaved of their wife by cancer need other's concern. And we have to study further to understand their experience. Until now hospice nursing is concentrated on cancer patients But from now we have to provide their families suitable nursing care programs to adjust themselves to social life before and after death of patients.

• The Journal of the Korea Contents Association
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• v.18 no.8
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• pp.82-91
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• 2018

This paper examines the sound of Godard's <$Pr{\acute{e}}nom$ Carmen> from Deleuze's film aesthetics and Merleau-Ponty's phenomenological point of view. The rehearsal scene of a string quartet is a mirror-image that illuminates the music itself, and becomes a crystal-image with the indiscernibility of the present and the past in the break with the main narrative. On the other hand, urban noise and waves are the seeds composed of pure optical (sound) images and grow into pure sound crystals that collide with what is seen through the juxtaposition, substitution, and intentional connection of sound. However, these sound contradictions also lead to the integrated sound category as a 'sole movement' through Merleau-Ponty's dialectical thought, and even the dialectical sound management of pop and classical music is no longer a confrontation of the genre, but is integrated into the materialistic category of sound. This study is differentiated from the existing research by solving the sound aesthetics of the Godard's film through philosophical thought.

• The Journal of the Korea Contents Association
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• v.18 no.9
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• pp.156-177
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• 2018

The objective of this study was to understand the countertransference and its meanings, experienced by novice supervisors in the supervision. For this, total seven novice supervisors with supervision experience for five years or less were purposively sampled, and then the in-depth interviews were conducted. As a phenomenological research, the collected data was analyzed in accordance with the Giorgi's 4-Stages, suitable for discovering the phenomenon and its meanings, experienced by research participants. In the results, there were six themes such as 'difficulty to realize the countertransference', 'expectation and impatience of supervisee's growth', 'identification with supervisee', 'hope for maintaining a good relationship with supervisee', 'avoidance of supervision', and 'struggle for standing up as an expert'. The unsolved problems and desires of novice supervisors were revealed as countertransference, which influenced the supervision. The results of this study imply that the countertransference of supervision has not only negative aspects, but also a positive meaning in the aspect that they could deeply understand themselves and others.

• The Journal of the Korea Contents Association
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• v.20 no.5
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• pp.181-192
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• 2020

The present study comprehensively explored the experiences of cognitive decline and of overcoming such decline in climacteric women to gain a deeper understanding of these women's cognitive health issues. Fourteen climacteric women were recruited, and data were collected through in-depth qualitative interviews. The collected data were analyzed using phenomenological methods suggested by Colliazzi. The quality of the present study was further improved according to the evaluative criteria for rigor suggested by Lincoln and Guba. The interviews resulted in 210 statements, 43 significant statements, 17 themes, and 5 theme clusters. The theme clusters were "loss of memory and distraction in everyday life," "struggle to overcome," "greeting an inevitable guest," "conforming to life changes," and "dreams of the past and future plans." As they experienced menopause, the participating women experienced decline in memory and concentration, as well as problems communicating. Climacteric women experienced cognitive decline during menopause and made significant efforts to overcome it; therefore, effective programs that promote cognitive function and adaptation should be provided for climacteric women.

• The Journal of the Korea Contents Association
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• v.20 no.10
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• pp.353-368
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• 2020

This research investigates how pre-service music teachers demonstrated pedagogical content knowledge (PCK) and self-efficacy during a 16-week Music Education Course. 37 pre-service music teachers underwent peer mentoring, and prepared teaching guides and class teaching demonstrations. At the end of the course, the 37 participants' teacher self-efficacy and PCK components (namely pedagogical knowledge, representational knowledge, subject matter knowledge, assessment knowledge, student characteristics knowledge, curriculum knowledge, and context and social knowledge) were assessed. Data on their self-efficacy and PCK were gathered through a group interview and their self-reflection journals, and analyzed as phenomenological experience research. Analyses of the data show that pre-service music teachers acquired diverse knowledge. It also showed that peer mentoring enhanced the pre-service music teachers' self-efficacy, enabling them to prepare teaching guides and confidently demonstrate classes. Thus, diverse opportunities in research and practical class demonstrations contributed to pre-service music teachers' PCK and self-efficacy.

• Women's Health Nursing
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• v.5 no.3
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• pp.277-286
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• 1999

Pain is a complex perceptual experience that is profoundly influenced by a number of variables, differing in quality as well as in intensity. Therefore we need to understand the actual experience of multiparous women in order to provide basic information for nursing care. The purpose of the study is to explore the experience of labor pain. The data are collected through in-depth interviews of 17 multiparous women in city of Pusan from October 1998 to March 1999. The interviews were conducted 1-2 days after delivery in the admission room. Each interview lasted about 45 minutes on average. Subjects were interviewed one at a time. The interviews were recorded with the consent of the subject. Data were analyzed by means of Giorgi's Phenomenological analysis methods and categorized according to the similarities of its contents. The investigator read the data repeatedly to identify themes and categories. Six categories that were identified were : 1) pain 2) regret 3) acceptance 4) maturity 5) accomplishment 6) newness. Under these categories there were seventeen themes. I. Pain: 1) too dependent on others 2) too painful 3) fear or anxiety from previous painful experience 4) avoidance of pain 5) couldn't control the pain II. Regret : 1) spouse's absence 2) unprofessional attitude of the staff 3) ignorance of other's towards their pain III. Acceptance : 1) took the pain for granted 2) accepted the pain as fate 3) endured the pain IV. Maturity : 1) appreciated the value of life 2) apprehension of parent V. Accomplishment : 1)is over sense of accomplishment 2) grateful the pain VI. Newness : 1) experienced a new feeling 2) quickly forgot the pain. The results of the study will provide basic data for labor pain management.

• Women's Health Nursing
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• v.3 no.1
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• pp.82-92
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• 1997

The purpose of this study was attempted to understand the substance and meaning of menopause experienced by women through informal interviews with oral consent. The informants were 6 perimenopausal women of 50-55 years old who are executing menopause. Colaizz's analytical method, a type of phenomenological analysis, was used to analyze data recorded by audiotape. One professor and a master's degree student who understand phenomenology, and the one who has a master of arts examined the validity between the meanings composed of the clusters of themes. Findings were turned out to be valid through validation process as the last step. The meaning of menopause implied both 'concept about menopause' and 'menopause as a time of change'. Menopause was mostly considered as cessation of menstruation as a physiological, natural, and normal process by aging. However, some people regarded menopause as a loss of youth and womanhood and lessening of every function of the body. Menopause as the time of changes means 'the period of' 'hormonal changes' such as change of menstruation, hot flushes, perspiration, and palpitation ; 'body function changes' of visual acuity, physical strength, sleeping, digestion, thoughts, bone and joints, skin sensibility, sexual pattern and intelligence ; 'emotional changes' such as anxiety, loneliness, gloominess, and nervousness. Menopause is a turning point on the women's life cycle accompanying various kind of changes and health problems. Therefore it is inevitable to develop strategy helping menopausal women pass through the critical successfully by adapting and coping with their critical period toward the healthy and better quality of life individually rather than putting them all into the standardized hormonal replacement protocol.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.12
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• pp.5063-5069
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• 2014

Background: Cancer is a disease which affects not only patients but also their families physically and emotionally. The purpose of this study was to determine the needs, challenges and ways of coping of caregivers of cancer patients. Materials and Methods: In the study, a phenomenological approach was used. Data were collected through semi-structured individual interviews. The study sample comprised 16 family members providing care for a cancer patient. Results: The study findings are grouped under four main themes: the impact of caregiving, masking feelings, experienced challenges and expectations, and coping. During the caregiving process, patient relatives are affected physiologically, psychologically and socially. It was determined that patient relatives hid their feelings and avoided talking about the disease for fear that they might upset the patient, and that they had difficulty in coping with the patient's reactions during the treatment process. Family members had difficulties arising from the health system, hospital conditions and treatment in addition to transportation and financial problems. Support is very important in coping, but it was determined that some of the relatives of patients did not receive adequate support. Patient relatives expect that health care professionals should provide them with more information about their patient's condition and the course of the disease that their patients should be dealt with by the physicians specialized in cancer, and that psychological support should be provided both for them and for their patient. Conclusions: During the caregiving process, family members are faced with many difficulties and they exhibit different coping behaviors which health care professionals should take into account.