• Animal Systematics, Evolution and Diversity
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• v.35 no.3
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• pp.95-104
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• 2019

The family Mesorhabditidae $Andr{\acute{a}}ssy$, 1976 is the most abundant group in Rhabditoidea and occurs all over the world. Over 85 valid species have been reported from Mesorhabditidae; however, only 2 species have been recorded in South Korea. In this study, Bursilla vernalis $Andr{\acute{a}}ssy$, 1982, Mesorhabditis inarimensis (Meyl, 1953) Dougherty, 1955, and M. minuta $Bostr{\ddot{o}}m$, 1991 belonging to the family Mesorhabditidae (Rhabditomorpha), are newly reported from South Korea. Species in this family are distinguished from other rhabditomorphs by a posteriorly located vulva and an unpaired prevulval female gonad. Details of the morphological characters and morphometrics of B. vernalis, M. inarimensis, and M. minuta are described and illustrated based on optical and/or scanning electron microscopy.

• The Bulletin of The Korean Astronomical Society
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• v.41 no.1
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• pp.61.3-62
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• 2016

An asteroid family is a group of asteroidal objects in the proper orbital element space (a, e, and i), considered to have been produced by a disruption of a large parent body through a catastrophic collision. Family members usually have similar surface properties such as spectral taxonomy types, colors, and visible geometric albedo with a same dynamical age. Therefore an asteroid family could be called as a natural Solar System laboratory and is also regarded as a powerful tool to investigate space weathering and non-gravitational phenomena such as the Yarkovsky/YORP effects. We carry out time series photometric observations for a number of asteroid families to obtain their physical properties, including sizes, shapes, rotational periods, spin axes, colors, and H-G parameters based on nearly round-the-clock observations, using several 0.5-2 meter class telescopes in the Northern hemisphere, including BOAO 1.8 m, LOAO 1.0 m, SOAO 0.6 m facilities in KASI, McDonald Observatory 2.1 m instrument, NARIT 2.4 m and TUG 1.0 m telescopes. This study is expected to find, for the first time, some important clues on the collisional history in our Solar System and the mechanisms where the family members are being transported from the resonance regions in the Main-belt to the near Earth space.

• Journal of Korean Academy of Nursing
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• v.37 no.1
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• pp.135-144
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• 2007

Propose: The purpose of this study was to help families decrease and alleviate the burden on family care-givers taking care of elderly patients. Method: Data was collected by a questionnaire from 100 family members who were registered in the department of home health care nursing at 4 hospitals of H University Medical Center from September 20 to October 25, 2005. The collected data was analyzed using Mean and Standard Deviation, Pearson Correlation Coefficient, t-test and One-Way ANOVA with the Duncan's test, and Stepwise multiple regression. Result: The average burden on family care-givers of elderly patients with chronic diseases was 3.31. The social burden was the highest(M=3.68), the lowest was the emotional burden(M=2.95). In ADL of elderly patients with chronic diseases, all 10 questions showed an average point above 2.50. The dependency level of going up and down the stairs was the highest(M=2.88). Conclusion: This research is necessary for the application of a plan in the social support system in order to reduce the burden on family care-givers who are taking care of elderly patients with a chronic disease.

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.101-104
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• 2002

Since the family of poly(m-methylene 2, 6-naphthalate) (PmN) with the chemical structure as shown in Figure 1(a) was first reported in 1969, the polymers belonging to this family have attracted considerable interests in the commercial and academic points of view due to realization of large-quantity production of 2, 6-naphthalenedicarboxylic acid. The commercially available polymers among this family are poly(ethylene 2, 6-naphthalate) (PEN, m=2) and poly(butylene 2, 6-naphthalate) (PBN, m=4). (omitted)

• Molecules and Cells
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• v.45 no.7
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• pp.435-443
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• 2022

In response to environmental changes, signaling pathways rewire gene expression programs through transcription factors. Epigenetic modification of the transcribed RNA can be another layer of gene expression regulation. N⁶-adenosine methylation (m⁶A) is one of the most common modifications on mRNA. It is a reversible chemical mark catalyzed by the enzymes that deposit and remove methyl groups. m⁶A recruits effector proteins that determine the fate of mRNAs through changes in splicing, cellular localization, stability, and translation efficiency. Emerging evidence shows that key signal transduction pathways including TGFβ (transforming growth factor-β), ERK (extracellular signal-regulated kinase), and mTORC1 (mechanistic target of rapamycin complex 1) regulate downstream gene expression through m⁶A processing. Conversely, m⁶A can modulate the activity of signal transduction networks via m⁶A modification of signaling pathway genes or by acting as a ligand for receptors. In this review, we discuss the current understanding of the crosstalk between m⁶A and signaling pathways and its implication for biological systems.

• Journal of the Korean Home Economics Association
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• v.44 no.3 s.217
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• pp.51-59
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• 2006

The purpose of this study is to determine the relevant variables of parent-leadership that influence family strength based on the transformational leadership and transactional leadership proposed by Bernard M. Bass and to investigate the primary impact of leadership on the subordinate's job satisfaction and job involvement to his/her supervisor. Therefore, this study will provide implications for the family through a diagnosis of the effect by leadership. The results of this research are as follows : 1) How is the relationship of parent-leadership and family strength? A positive correlation was found between transformational leadership scores and family strength. A negative correlation was found between nontransactional leadership scores and family strength. 2) How had transformational leadership and transactional leadership affected on the family strength? Transformational leadership had the strongest effect on family strength. How had the 7 sub- factors of transformational/transactional leadership affected family strength? Idealized influence and contingent reward had strong effect on family strength but management by except had a negative effect on family strength.

• Journal of Oral Medicine and Pain
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• v.30 no.3
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• pp.301-317
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• 2005

The number of patients with tongue carcinoma is increasing rapidly among young individuals in many parts of the world. Oral carcinoma progresses from hyperplastic lesion through dysplasia to invasive carcinoma and the concept of "field cancerization" with molecular alteration has been suggested for oral cavity carcinogenesis. Significant improvement in treatment and prognosis will depend on more detailed understanding of the multi-step process leading to cancer development. To induce tongue carcinoma in rat by 4-NQO, each drinking water was made to 10 ppm, 25 ppm, 50 ppm and control (only D.W. without 4-NQO). Specimens were classified into 4 groups such as control, I (mild & moderate dysplasia), II (severe dysplasia and carcinoma in situ), III (carcinoma). The mRNA expressions of Bcl-2 family were evaluated by RT-PCR technique. For anti-apoptotic Bcl-2 family, mRNA expression of Bcl-w was down-regulated in all stages of tongue carcinogenesis model. However, mRNA expression of Bcl-2 was up-regulated. For pro-apoptotic Bcl-2 family, all members were down-regulated in all stages of tongue carcinogenesis model except for Bad mRNA in group III. In terms of BH3 only protein, mRNA expressions of Bok and Mcl-1 were down regulated in all stages of specimen, but Bmf in group II and BBC3 in group III were up-regulated. Our current findings demonstrated the involvements of mRNA expression of Bcl-2 family in multi-step tongue carcinogensis. This highlights the necessity for continued efforts to discover suitable biomakers (Bcl-2 family) for early diagnosis of the disease, and to understand its pathogenesis as a first step in improving methods of treatment. The discovery of these potential biomarkers and molecular targets for cancer diagnostics and therapeutics has the potential to significantly change the clinical approach and outcome of the disease.

• Korean Journal of Social Welfare Studies
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• v.45 no.2
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• pp.65-97
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• 2014

This research aims to figure the different perceptions on the organization-public relationship between military officials and the locals, and the perception on the support military family welfare. In order to analyse their subject point of view, 217 career soldiers and the 191 local residents surveyed during 3 weeks from 10th February to 28th February, 2014. The results getting from this research were as to follows; First of all, the perception on the military organization-public relationship towards local community is more positive in the military officials(M=5.39) than the locals(M=4.99), but different from the two groups(t=6.93, p<.001). Moreover, there exists statistically significant different in every sub-factors and it means the mutual perception consistency is low. Second, the perception on the support from the locals towards military family welfare of military(M=5.38) is higher(t=6.93, p<.001) than the perception of the locals (M=4.76) and it is statistically significant. Third, the a regression coefficient which indicates the impact on the perception on support military family welfare through the change of organization-public relationship shows statistically significant (${\beta}=.82$(p<.001)). As a result, the perception on the military organization-public relationship of the locals has significant prediction power to the perception on the support military family welfare. And when the perception on the military organization-public relationship of the localsis higher, the perception on the support military family welfare has been changed positively.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2005.09a
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• pp.141-146
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• 2005

In the present study, the characteristic of warpage and flow balance for family mould, which is able to mold parts with different shapes in a mold, is considered. To obtain an optimal gate and runner system, plastic injection molding analysis with commercial code is performed. Design and manufacturing of family mould is then carried out on the basis of this computer aided engineering result. Flow balance and warpage comparisons between experiment and numerical analysis give good agreement with each other. However, it was shown that results of warpage measured by CMM was about $20\~55\%$ lower than those of numerical analysis.

• Proceedings of the IEEK Conference
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• 2006.06a
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• pp.1053-1054
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• 2006

In this paper we consider a family {$H_m$},m =1,2,..., of generalized Hadamard matrices of order $P^m$, where p is a prime number, and construct the corresponding family {$C^*_m$} of generalize p-ary Hadarmard codes which meet the Plotkin bound. Index terms: Cyclotomic fields, cocyclic matrices, Butson-Hadamard matrices, generalized Hadamard codes, decoding.