• Korea journal of population studies
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• v.30 no.3
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• pp.57-81
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• 2007

Current discussions on productive aging are going towards the direction to sustain a social productivity and lessen a social burden, and this becomes distinct as it gives a strong value to the activity and independence of older people. This study highlights complex situations of productive activities in the group of older people by analyzing the survey of Among the productive activities of older people, two areas of activities - paid labor and social support - were interpreted differently according to their economic stability, spontaneity and family relations. This difference becomes more remarkable in the analysis on life satisfaction of older people. In paid work, which is the most common productive activity, there was a big difference in life satisfaction between those who work spontaneously and those who work inevitably to make a living. And in the comparison of life satisfaction for those who participate in homemaking and care working according to their economic situations and family relations, those who were unsatisfied with family relations showed lower life satisfaction.

• Journal of the Korean housing association
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• v.24 no.5
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• pp.27-37
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• 2013

Because of rapid aging, housing stability of elderly household is becoming an important social problem. The population of the elderly people was 11.3% and that of the elderly household was 23.2%, about 407 million, in 2010. Yet, social policies for elderly people are focusing on the household who takes care of the elderly people, not on the elderly headed households. These policies fail to reflect the reality. Housing satisfaction of the elderly household is different based on the tenure type and the satisfaction can be further affected by the types of elderly household within the same tenure group. Thus, strengthening the policies for the elderly headed households as well as differentiating the policies based on the types of household is required in order to meet the needs of the elderly households. For the elderly household living in a rent house in a city, a housing voucher is needed and for the low income elders who own their houses, housing renovation is required. Public housing affects only the residential satisfaction of single elderly households, not for all elderly households probably because public housing does not meet the demand of the elderly households appropriately. Since the elderly households wanting to move is noticeably small, a policy that provides proper facilities within the elders' neighborhood is most necessary. Also, in order to lessen the burden of housing expenses of the elders with low income, a public housing policy, in which 2-3 people living together in one public housing, needs to be examined.

• The Korean Journal of Physiology and Pharmacology
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• v.22 no.4
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• pp.457-465
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• 2018

The expression of BCL-2 interacting cell death suppressor (BIS), an anti-stress or anti-apoptotic protein, has been shown to be regulated at the transcriptional level by heat shock factor 1 (HSF1) upon various stresses. Recently, HSF1 was also shown to bind to BIS, but the significance of these protein-protein interactions on HSF1 activity has not been fully defined. In the present study, we observed that complete depletion of BIS using a CRISPR/Cas9 system in A549 non-small cell lung cancer did not affect the induction of heat shock protein (HSP) 70 and HSP27 mRNAs under various stress conditions such as heat shock, proteotoxic stress, and oxidative stress. The lack of a functional association of BIS with HSF1 activity was also demonstrated by transient downregulation of BIS by siRNA in A549 and U87 glioblastoma cells. Endogenous BIS mRNA levels were significantly suppressed in BIS knockout (KO) A549 cells compared to BIS wild type (WT) A549 cells at the constitutive and inducible levels. The promoter activities of BIS and HSP70 as well as the degradation rate of BIS mRNA were not influenced by depletion of BIS. In addition, the expression levels of the mutant BIS construct, in which 14 bp were deleted as in BIS-KO A549 cells, were not different from those of the WT BIS construct, indicating that mRNA stability was not the mechanism for autoregulation of BIS. Our results suggested that BIS was not required for HSF1 activity, but was required for its own expression, which involved an HSF1-independent pathway.

• The Journal of the Korea Contents Association
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• v.10 no.10
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• pp.294-303
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• 2010

The law on promoting rationalization of mansion management is the one that was enacted with the aim of enhancing stability of people's life and further of promoting sound development in national economy, by securing good residential environment of mansion in Japan. A rise in mansion, the distinct characteristics of a residential form that only mansion has, and the insufficiency of legal modification related to this are the issues that have been steadily proposed in academic circles and practical affairs in Japan. Also, in the managerial aspect, even problems about the operation of the management association, the maintenance & repair, the management contract on management agency in management association, and the correct transfer of design completion plan have been pointed out. To solve these problems, the law of rationalization was legislated. However, the law of rationalization can be ultimately evaluated to suggest its solution on a problem about forming agreement on mansion management. On the other hand, it is concerned about the management association and section owner in mansion, and about mansion that was progressed aging considerably. For example, it is proposing or suggesting duties in several forms caused by dwellers' diversity to local self-government. Thus, it is a fact that a number of difficulties exist in smoothly enforcing the law of rationalization.

• Journal of the Korean Magnetics Society
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• v.3 no.4
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• pp.298-304
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• 1993

The effects of the substrate temperature and the Pd underlayer on the structure and the magnetic properties of Pd/Co multilayer films prepared by the thermal evaporation were studied. As the substrate temperature increases up to $150^{\circ}C$, the crystallinity of sublayers, (111) texture and the interface sharpness of Pd/Co multilayers were improved due to the enhanced mobility of adatoms. As results of that, the perpendicular and surface anisotropy energies were increased but the coercivity was decreased because the pinning sites of domain wall decreased due to the grain growth. The grain size of the multilayers increased with Pd underlyer thickness. Thermal degradation was enhanced at above $200^{\circ}C$ due to interdiffusion at the Pd/Co interface. The intensity of the main diffraction peak rapidly decayed in the initial stage of aging and then decreased slowly. The rapid change of the intensity in the initial stage was speculated to be due to the structural relaxation phenomena and the later stage change was due to the interdiffusion. The activation energy for the interdiffusion in Pd4/Co1 multilayers was 14.9 KCal/mole.K.

• Membrane Journal
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• v.22 no.5
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• pp.342-351
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• 2012

In this study, PTMSP[poly(1-trimethylsilyl-1-propyne)]/PDMS[poly(dimethylsioxane)]-NaY zeolite and PTMSP/PDMS-NaA zeolite composite membranes were made to incorporate zeolite into PTMSP/PDMS graft copolymer in order to improve the selectivity and thermal stability, the drop of permeability by physical aging effect during long period of time for the PTMSP membrane. To investigate the physico-chemical characteristics of composite membranes, the analytical methods such as FT-IR, $^1H$-NMR, TGA, SEM, and GPC have been utilized. The gas permeability and selectivity properties of $H_2$ and $N_2$ were evaluated. The permeability of the PTMSP/PDMS-NaY zeolite and PTMSP/PDMS-NaA zeolite composite membranes than PTMSP/PDMS graft copolymer membrane increased, increased as zeolite content increased. On the contrary, the selectivity ($H_2/N_2$) of the composite membranes decreased as zeolite content increased. PTMSP/PDMS-NaA zeolite composite membrane showed better permeability and separation factor than PTMSP/PDMS-NaY zeolite composite membrane.

• Journal of the Korean Society of Food Science and Nutrition
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• v.32 no.1
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• pp.82-88
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• 2003

Four kinds of low calorie mayonnaises containing 1.2% of sodium alginate, 1.0% of guar gum, 1.0% and 1.2% of xanthan gum and one control mayonnaise containing 78.5% of oil without gums were manufactured in pilot scale. Fresh control mayonnaise was higher in viscosity and turbidity than low calorie mayonnaise with gums. During storage at -1$0^{\circ}C$, viscosity and turbidity of control mayonnaise decreased sharply, whereas those of low calorie mayonnaise with gums decreased slightly. Scanning electron microscopy showed that fresh mayonnaise was composed of heterogeneous population of dispersed spherical oil droplets (<10 ${\mu}{\textrm}{m}$), and oil droplet size of control mayonnaise was smaller than any other low calorie mayonnaise. During storage at -1$0^{\circ}C$, a shift in oil droplet size toward larger oil droplets was frequently observed in control mayonnaise as a result of coalescence of oil droplets. Oil separation and turbidimetric study also confirmed that coalescence of oil droplets was occurring during this accelerated aging treatments.

• Elastomers and Composites
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• v.36 no.3
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• pp.162-168
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• 2001

Low molecular weight polybutadiene (liquid BR) improves the filler dispersion in a silica-filled styrene-butadiene rubber (SBR) compound. In the present work, influence of molecular weight or the liquid BR on properties of a silica-filled SBR compound was studied. Minimum and maximum torques in the rheocurve for the compound containing the liquid BR with higher molecular weight (HLBR) are lower than those for the compound containing the liquid BR with lower one (LLBR) while the delta torques are nearly the same. Mooney scorch time of the compound containing HLBR is faster than that of the compound containing LLBR. Modulus or the compound containing HLBR is lower than that of the compound containing LLBR while tensile strength of the former is higher than that of the latter. The elongation at break of the former is also longer than that of the latter. Stability for the thermal aging at $90^{\circ}C$ for 3 days is less favorable for the former than for the latter.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.3D
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• pp.391-401
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• 2011

The Implementation Semi-Public Management System of Intra-City Bus brings improvements of the position stability, work environment and welfare of the bus drivers. As these benefits prevent drivers' job changes, average age of the drivers increases. Some side effects such as fatality increase after the implementation of the new system are becoming social problems. To minimize such problems, it is necessary to prepare the measurements reflected drivers' age increase and driving characteristics of old drivers to decrease traffic accidents of intra-city buses. The existing measurements are mostly simple policy. To get over such limitations, this study grasped driving characteristics by surveys and driving aptitude test targeting old drivers and non-old drivers who brings about traffic accidents actually. As a result, the characteristics of the old drivers were understood precisely. The measures of decrease of the traffic accidents are suggested by the analysis of the behavior characteristics of the old drivers through the structural equation model.

• Journal of International Academy of Physical Therapy Research
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• v.11 no.2
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• pp.2052-2059
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• 2020

Background: Kinesiology taping (KT) is a method that helps immediately increase muscle activation, strength and joint stability by being attached to various skeletal muscles and structures of the body. Objectives: To investigate the effect of KT applied below the hyolaryngeal complex on the movement of the hyolaryngeal complex during swallowing in patients with dysphagia after stroke. Design: One-group, pre-post design. Methods: Twenty individuals with dysphagia after stroke participated in this study. KT was applied to the sternum and both clavicles from the hyolaryngeal complex. We analyzed the motion of the hyolaryngeal complex during swallowing with and placebo KT and KT using the Image-J software with videofluoroscopic swallowing study. In addition, a 0-to-10 numerical rating self-report scale was used to check the required effort and resistance felt during swallowing. Results: KT condition showed that the anterior and superior movement of the hyoid bone during swallowing was significantly lower than placebo KT (P<.05, all). Also, KT condition showed that the anterior and superior movement of the larynx during swallowing was significantly lower than placebo KT (P<.05, all). In result of statistical comparison between KT group and placebo KT group, the KT group showed significantly higher self-report scale score than the placebo KT group in terms of two category; the required effort and resistance felt (P<.05, all). Conclusion: This study demonstrated that KT applied below the hyolaryngeal complex inhibits the anterior and superior movement of hyoid bone and larynx during swallowing of patients with dysphagia after stroke.