• Title, Summary, Keyword: Accepting Method

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An Investigation on Models of Making-hypothesis Process by Analysis of Formulating Hypotheses on Repetition Hypothesis Activities in Middle School Students

  • Kim, Young-Shin;Germann, Paul J.
    • Journal of The Korean Association For Science Education
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    • v.24 no.4
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    • pp.731-747
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    • 2004
  • The scientific inquiry enterprise consists of formulating hypotheses, testing hypotheses, evaluating evidence, and revising hypothesis. Scientific inquiry in the science classrooms requires students' background experience and knowledge with the phenomenon in order to ask appropriate questions, identify and define variables operationally, formulate hypotheses, and design clear and complete experiment. The ability to test hypotheses has been postulated to play a central role in cognitive processes. The purpose of this study was to analyze what the change of the quantity and quality of the hypothesis, the rejecting or accepting of the hypothesis, and the use results in the repetitional hypothesis activity experiments. To examine the problems, this study analyzed 5 classes which were designed and administered to 16 students of the 7th grade. The results of this study showed that students preferred the engineering method to scientific method and the quality of a second hypothesis got low. The quality of the hypothesis came to be higher through a repetitional hypothesis and the number of hypothesis was reduced. The results of the experiments did not play central roles in revising hypotheses and accepting or rejecting hypothesis.

A Study on the HEC(Hybrid ESE-Conductor) Method for Lightning Protection of Buildings (건축물의 낙뢰보호를 위한 HEC(Hybrid ESE-Conductor) 방식에 관한 연구)

  • Kim, Dong-Jin;Kim, Young-Sun;Lee, Ki-Sik
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.57 no.2
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    • pp.146-152
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    • 2008
  • The frequency of lightning is increased due to improbable weather condition and global wanning. This phenomenon increases economical damage as well as human damage. Advanced countries like europe and north america have applied the facility standard of lightning by accumulating a store of quantitative data about lightning research. Lightning facility is composed of the lightning accepting part for induction lightning, ground connected electrode which conducts lightning current. The lightning accepting part is composed of normal rod, horizontal conductor, ESE lightning rod. Moreover, lightning accepting part is taken to use by the method of protection. This paper suggests HEC(Hybrid ESE-Conductor) method which mixes horizontal conductor and ESE lightning rod. This is also discovered by experiment that the starting point of corona discharge current is low, so it is efficient for lightning protection comparing with other methods. Moreover, distribution of electric field is analyzed qualitatively by finite element method. It also results in the relation of the starting point of corona discharge current. Corona discharge current makes minute current about some ${\mu}A$ between the electrodes by the strength of electric field. Also it occurs insulation destruction of gas, and it is developed to the shape of streamer by increase of the strength of electric field. We can find that the initial occurrence of streamer and contact probability of lightning can have advantage after researching the starting point of corona discharge current and discharge current of lightning striking point. This research demonstrates that the suggested HEC method is economically competitive as a lightning protection facility, and it takes a capably perfect role.

Excitation Energy Transfer Rate Constants in meso-meso Linked Zn(II) Porphyrin Arrays with Energy Accepting 5,15-Bisphenylethynylated Zn(II) Porphyrin

  • Ko, Da-Mee;Kim, Hee-Young;Park, Jin-Hee;Kim, Dong-Ho;Sim, Eun-Ji
    • Bulletin of the Korean Chemical Society
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    • v.26 no.10
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    • pp.1505-1511
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    • 2005
  • The excitation energy transfer process occurring in energy donor-acceptor linked porphyrin array system is theoretically simulated using the on-the-fly filtered propagator path integral method. The compound consists of an energy donating meso-meso linked Zn(II) porphyrin array and an energy accepting 5,15-bisphenylethynylated Zn(II) porphyrin, in which the donor array and the acceptor are linked via a 1,4-phenylene spacer. Real-time path integral simulations provide time-evolution of the site population and the excitation energy transfer rate constants are determined. Simulations and experiments show an excellent agreement indicating that the path integration is a useful tool to investigate the energy transfer dynamics in molecular assemblies.

Porous Organic-inorganic Hybrids for Removal of Amines

  • Cho, Sung-Youl;Kim, Na-Ri;Cao, Guozhong;Kim, Joong-Gon;Chung, Chan-Moon
    • Bulletin of the Korean Chemical Society
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    • v.27 no.3
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    • pp.399-402
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    • 2006
  • Porous organic-inorganic hybrids have been prepared from tetraethylorthosilicate (TEOS) and organosilane precursors by sol-gel method. Two organosilanes, 3-(2,4-dinitrophenylamino)propyltriethoxysilane (DNPTES) and N-[[(2-nitrophenyl)methoxy]carbonyl]-3-triethoxysilylpropylamine (NPTES) were used to incorporate electron-accepting (di)nitrophenyl groups into the hybrids. The hybrids were characterized by FT-IR spectroscopy and elemental analysis, and their pore characteristics were studied by nitrogen sorption porosimetry. Surface area of the hybrids ranged from 563 to 770 $m^2$/g, pore volume, 0.23-0.30 $cm^3$/g, and porosity, 35-41%. It was demonstrated by UV-vis spectroscopy that aniline, ethylenediamine, and 1-aminonaphthalene could be removed from their hexane solutions in the presence of the hybrid powders. The removal of amines is attributable to donor-acceptor interaction between the electron-donating amines and electron-accepting (di)nitrophenyl moiety.

The Lived Experience of Struggling against Illness for Patients with Amyotrophic Lateral Sclerosis (근위축성 측삭경화증 환자의 투병경험)

  • Kang, Sung-Ye
    • Journal of Korean Academy of Nursing
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    • v.38 no.6
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    • pp.802-812
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    • 2008
  • Purpose: The purpose of this study was to identify and describe phenomenological structures of the lived experience of struggling against an illness for patients with Amyotrophic Lateral Sclerosis (ALS). Methods: The participants were 7 patients with ALS recruited by snowball sampling who agreed to participate in this research and could verbally communicated with the researcher. Data were collected by long term-repeated interviews with participants in their own homes. Data were analyzed using Colaizzi's method of phenomenology. Results: Four categories were extracted as follows: 'Being seized with fear of death', 'Living a marginal life', 'Accepting hard fate', and 'Clinging to faint life'. Seven theme clusters were identified as: 'Wandering to find a healing method with ominous signs in the body', 'Having a diagnosis of ALS is like a bolt from the blue and struggling against illness with faint hope', 'Being forced out to the edge of life with anguish', 'Filling one's heart with hatred and longing toward becoming estranged from the world', 'Living with stigma as a stumbling block with bitter grief in one's heart', 'Accepting every things as one's fate with self controlled fear of death', and 'Attaching to desire to live'. Conclusion: The results of this study can be used to develop the programs to support patients with ALS and their family.

The Process of Acceptance of Complementary and Alternative Therapies (CATs) among Nurses: Grounded Theory Approach (간호사의 보완대체요법 수용과정에 관한 연구: 근거이론 접근)

  • Kim, Ae-Kyung;Lee, Young-Shin;Kim, Hyun-Jung
    • Journal of Korean Academy of Nursing
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    • v.43 no.5
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    • pp.669-680
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    • 2013
  • Purpose: This study was done to explore the process of accepting CATs among nurses who experienced CATs in Korea. Methods: Grounded theory methodology was utilized. Data were collected from 10 nurses during individual in-depth interviews. Theoretical sampling was used until the data reached saturation. Data were analyzed using the constant comparative analysis method. Results: The core category emerged as "resolving the doubt and integrating" explaining the process of accepting CATs. The nurses engaged in three stages: need awareness, look for solution and integration. Causal conditions were interest as a nursing intervention and orthodox medical limitations. Context was lack of basis for application and increase in social interest. Strategies were new knowledge acquisition, having a strong will, combined with existing knowledge, and individualized intervention. Intervening conditions were others' eye, exhaustion for nurses and physical environment. Consequences were expanding of the nursing role and improved nurse satisfaction. Conclusion: The results of the study should facilitate application of CATs in nursing practice. To help nurses who are interested in CATs, there is a need for education programs, and further research on CATs.

Experience in Acceptance of Hospice by Patients with Terminal Cancer : A Phenomenological Research (말기암 환자의 호스피스 수용 경험: 현상학적 연구)

  • Kwak, Su Young;Lee, Byoung Sook
    • Journal of Korean Academy of Nursing
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    • v.43 no.6
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    • pp.781-790
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    • 2013
  • Purpose: The purpose of this study was to further understanding of the experience in acceptance of hospice by patients with terminal cancer and to explore the structure of this experience. Methods: A phenomenological methodology was used for the study. Participants were nine patients who were admitted to the hospice unit of a university hospital. In-depth interviews were done for data collection and the data were analyzed using Colaizzi's method. Results: Four categories, eight theme clusters and 18 themes were identified for the experience in acceptance of hospice by patients with terminal cancer. The three categories were 'Hope for a comfortable death', 'Overcoming barrier of prejudice about hospice', 'Incessant craving for life', 'The last consideration for self and family' Conclusion: While accepting the hospice care, participants experienced inner conflict between giving up medical treatments that prolong life and choosing a comfortable death, and also experienced an incessant craving for life. By accepting hospice care, they showed a human dignity that entails careful concerns for both self and family members.

Maternal Transition in Mothers with High Risk Newborns (고위험 신생아 어머니의 모성전환 과정)

  • 신현정
    • Journal of Korean Academy of Nursing
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    • v.34 no.2
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    • pp.243-251
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    • 2004
  • Purpose: The purpose of this study was a comprehensive understanding about maternal transition in mothers with high risk newborns according to the degree of situational meaning. Method: A methodological triangulation that combines qualitative and quantitative methods was used. The situational meaning of a high risk newborn mother was identified using a Family Meaning Attribution Scale. According to the degree of situational meaning, in-depth interviews were conducted at 3 time periods postpartum: between 3-10 days after childbirth, around the time of the newborn's discharge, and between 10-12 weeks after childbirth. Quantitative data was analyzed using descriptive statistics and t-test. Qualitative data was analyzed using Tutty, Rothery, & Grinnell's methodology. Result: The average score of the situational meaning in high the risk newborn mother was 53.57(possible score is between 0-96) and the average score of each item was 1.67. A Maternal transition process in the mother that has a positive situational meaning was conceptualized in three distinctive phases: confusion, accepting, and shaping phases. The Maternal transition process in the mother that has a negative situational meaning was also conceptualized in three distinctive phases: avoiding, conflicting, and accepting phases. Conclusion: It is necessary that the nurses provide high risk newborn mothers with individualized care considering both the situational meaning that is attributed to them and the maternal transition phase that they are faced with.

Psychosocial Adjustment in Families with Kidney Donor or Recipient (신장공여자와 신장수혜자를 가진 가족들의 사회심리적 적응)

  • 이명선
    • Journal of Korean Academy of Nursing
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    • v.29 no.4
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    • pp.790-801
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    • 1999
  • The purpose of this study was to generate a grounded theory of how families with kidney donor or recipient coped with kidney transplantations. Interview data from twelve families involved in kidney transplants was analyzed using the grounded theory method. Data analysis revealed that “protecting the family” was the main theme that represented family member experiences. In order to maintain family function and to protect the family from breaking up, family members had to adjust the family structure from the traditional style of a husband-centered family, to one that was patient health -centered. The process of this adjustment was a very long and difficult one, taking several years from the recognition of the kidney disease to the kidney transplants. Family members, especially spouses, employed nine different strategies to deal with various problems and conflicts which occurred during the process : 1) paying attention to the patient's illness and complications ; 2) accepting the patient's illness as the family's illness as well ; 3) managing the patient's illness and complications that occured ; 4) being thrifty ; 5)supporting the kidney donor ; 6) accepting and replacing the lost roles of the patient ; 7) keeping composure and encouraging the patient ; 8) sustaining the patient's independence ; 9) self-restraining sexual desires. These findings suggest that there is a developmental process where family members adjust to a kidney transplant over time. There is also a need for increased social and psychological health services for all family members over the course of kidney transplants.

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Synthesis and characterization of $\pi$-conjugated dyes containing quinoxaline derivatives (Quioxaline 유도체를 포함하는 공액이중결합을 갖는 염료들의 합성과 특성)

  • Park, Jong-Ho;Jaung, Jae-Yun
    • Proceedings of the Korean Fiber Society Conference
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    • pp.108-111
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    • 2003
  • In recent years the interest in research and development of functional dye and $\pi$-conjugated polymer contains functional moiety has been larger. there has been many research papers concerning new synthetic method and mechanism of polymer containing quinoxlaine as a funtional moiety. Because of 1,4-position nitrogen atoms, quinoxalines have electron-accepting properties$^{1.4}$ . (omitted)

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