• Anxiety and mood
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• v.14 no.2
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• pp.106-111
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• 2018

Objective : High-risk pregnant women are exposed to the physical and emotional crisis associate with the condition of high-risk pregnancy, making these women emotionally unstable, exhibiting such conditions as depression and anxiety. The aim of this study was to examine what effects the temperament and character of high-risk pregnant women had on their depression, anxiety, and maternal-fetal attachment. Methods : A hundred and five high-risk pregnant women were recruited in the maternity ward of the Keimyung University medical center. All subjects were administered a sociodemographic and obstetric questionnaire, Temperament and Character Inventory, Beck Depression Inventory-II, State Trait Anxiety Inventory-State, and Maternal-Fetal Attachment Scale. Results : First, higher scores on the harm-avoidance scale and lower scores on the self-directedness scale were associated with higher depression scores. Second, higher scores on the harm-avoidance and reward-dependence scale were associated with higher anxiety scores. Lastly, higher scores on the cooperativeness scale were associated with higher maternal-fetal attachment scores. Conclusion : Temperament and character in high-risk pregnant women were associated with the degree of depression, anxiety, maternal-fetal attachment. Based on these findings, it is suggested that examining temperament and character in advance and screening for vulnerability in pregnant women can help to prevent emotional problems for high-risk pregnant women.

• The Journal of the Korea Contents Association
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• v.21 no.11
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• pp.657-679
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• 2021

This study aimed to explore the experience and nature of emotional care for elderly parent living alone for middle-aged adult who formed initial insecure attachment with his or her parent. To this end, 12 middle-aged people aged 45 to 60 (3 males and 9 females) were recruited as subjects of the study, interviewed in-depth, and analyzed using Colaizzi's phenomenological research method. As a result of the study, 60 constitutive meanings, 18 themes, and 4 thematic groups were derived for the experience of middle-aged adult who experienced insecure attachment to his or her parent and caring for the emotional needs of elderly parent living alone. Thematic groups included "negative experiences that caused emotional exhaustion," "emotional driving force in emotional care," "the role of helper in parental care," and "economic and physical content in emotional care". This study is meaningful in that it revealed the phenomenon of experiences of emotional care for parent living alone by middle-aged adult who had an initial unstable attachment with his or her parent to understand them and contributed to the provision of counseling data.

• The Journal of the Korea Contents Association
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• v.18 no.2
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• pp.476-489
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• 2018

This study examined the factors affecting the career identity of high school students. We adopted the ecological systems theory by Bronfenbrenner. The consumer typology approach was applied based on their negative emotions, and they were categorized into two distinct groups: unstable emotion group(n=903) and stable emotion group(n=1,107). We used the panel data of Korean Children & Youth Panel Survey. Data of a total of 2,010 participants were analyzed. The results of this study are as follows. In the unstable emotion group, parental supervision, parental excessive expectation, peer communication, peer trust, and teacher attachment significantly influenced career identity. In the stable emotion group, parental supervision, parental abuse, peer communication, and teacher attachment significantly influenced career identity.

• Korean Journal of School Psychology
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• v.17 no.3
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• pp.243-261
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• 2020

Fear of missing out (FoMO) refers to the desire to stay continually connected with what others are doing because they are afraid of missing the flow or not being included. Although FoMO has been recently proposed as a widespread phenomenon within social media, there has been few empirical research by which mechanism FoMO leads to social networking service (SNS) addiction. Therefore, this study examined whether FoMO mediated the relationship between adolescents' attachment and SNS addiction proneness. A total of 517 middle and high school students participated in the study and completed self-report questionnaires. Results showed that FoMO partially mediated the relationship between adolescents' parental attachment and SNS addiction proneness, whereas the relationship between adolescents' peer attachment and SNS addiction proneness was fully mediated by FoMO. These results suggest that unstable attachment might contribute to SNS addiction through FoMO, especially in case of peer attachment. Lastly, we discussed theoretical and practical implications of this study and suggestions for future research.

• Transactions of the Korean Society of Automotive Engineers
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• v.14 no.2
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• pp.57-66
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• 2006

AA5182-polypropylene sandwich sheet was manufactured, and the mechanical properties evaluation was executed in order to identify $L{\ddot{u}}ders$ band that causes fabrication process problem and especially surface roughness. To identify formability, deformation behavior, plastic strain ratio (R-value) and pole figure were measured, and texture analysis was performed. In the case of sandwich sheet, the unstable deformation behavior has decreased. As well, for sandwich sheet, A1 skin could manage the most of load, and the elongation has improved about 45% more than that of A1 skin. The plastic strain ratio of A1 skin and sandwich panel, which indicates serration behavior, was obtained from instantaneous plastic strain ratio evaluation. Also, the planar anisotropy of sandwich sheet has decreased more than that of A1 skin. According to these results, the sandwich sheet produced lightening effect and could control unstable deformation characteristic, that is, surface roughness caused by $L{\ddot{u}}ders$ band. Furthermore, it was proved that the texture control of the rolling attachment of A1 skin is necessary to improve the formability of the sandwich panel.

• The Journal of Korean Academy of Prosthodontics
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• v.57 no.4
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• pp.364-373
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• 2019

Unlike class I patients, skeletal class II patients have unstable occlusion thus leading to instability of mandibular complete denture. Therefore, mandibular implant overdenture has been the standard of care due to its advantages in stability and retention. The types of attachments can be divided into two categories: solitary and bar type. The indications vary between two categories. In this clinical report, digital technology was utilized from the implant planning to the choice of appropriate attachment. Implants were placed at the desired location as previously planned in terms of angle and depth. Maxillary removable partial denture and mandibular implant overdenture are expected to have fair prognosis.

• Journal of Environmental Health Sciences
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• v.22 no.1
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• pp.82-90
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• 1996

The objectives of this study were to examine the start-up method and characteristics of biomass attachment on the media in an anaerobic fluidized bed reactor(AFBR). The media adopted was the granular activated carbon which was successfully capable of adsorbing organics and biomass. The reactor was operated at 5 kg $COD/m^3\cdot day$ and 24hr of HRT. There were important problems in the AFBR's start-up, which has been reported very long and unstable. Therefore, this research was to solve the problem of the start-up and it was performed, comparing two start-up ways that were initial fluidized system and initial static-fluidized system. The results were summarized as follows: (1) On the whole initial static-fluidized system was superior to initial fluidized system in the aspects of biogas production rate, methane content and COD removal efficiency etc. (2) At the steady state methane production rate and recoverable bioenergy of initial static-fluidized system were $2.074 m^3CH_4/m^3\cdot day$, $0.488 m^3CH_4/kgCOD_{removed}\cdot day$, and 81.3kcal/day, respectively. (3) Thickness of biofilm was about $5.11 \mu m$, $\rho_{bw}$ and $\rho_{bd}$ were $1.022 g/cm^3, 0.0953g/cm^3$ respectively. (4) Biomass concentration of fluidized state was about 35 mg/g GAC. In conclusion the efficient method on the start-up of the AFBR using GAC as media was initial static-fluidized system and the period of static state needed to reach steady state was considered about twenty days.

• The Journal of Korean Academy of Prosthodontics
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• v.38 no.5
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• pp.724-743
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• 2000

One of the biggest clinical problems of osseointegrated implant prosthesis is the excessive stress caused by bite forces which are transfered directly into the bone through the osseointegrated implant fixtures. So several biodynamic problems occur when there is an excessive fatigue stress. The factors of stress distribution are the number, kind, position, arrangement of the implants, and the distance between the implants, and the kind, quality of superstructure prosthesis and connection type between the rest implant and the superstructure. Recently, a distal short additional implant, socalled rest implant, is employed to reduced the stresses in conventional cantilevered prostheses. This study was undertaken to analyze the stresses transfered by osseointegrated implant cantilevered prostheses depending upon the number and the position of implants, the presence of rest implant, and the type of their connection. Three dimensional finite element analysis was attempted using ANSIS ver. 5.3 program under IBM INDIGO computer. The results were as follows : 1. The rest implant influenced on the pattern of stress distribution on the anterior area of the mandible and the superstructure. 2. In the group employing the rest implants, the fixed type of connection between the rest implant and the superstructure was more stable than the ball attachment type on the stress distribution. 3. In the group employing the ball attachment between the rest implant and the superstructure, the case with 4-implants(on canine, premolar) was little more stable than the case with 6-implants and the case with 4-implants(on incisor, premolar) on the stress distribution. 4. In the cantilevered group, the case with 4-implants(on incisor, premolar) and the case with 6-implants were more stable than the case with 4-implants(on canine, premolar) on the stress distribution. 5. In all of the group, the case with 6-implants and the fixed type of connection was the most stable and the case with 4-implants (on canine, premolar) was the most unstable on the stress distribution.

• International Journal of Fluid Machinery and Systems
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• v.3 no.2
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• pp.122-128
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• 2010

The attachment of inducer in front of main impeller is a powerful method to improve cavitation performance; however, cavitation surge oscillation with low frequency occurs with blade cavity growing to each throat section of blade passage simultaneously. Then, one conceptual method of installing suction axi-asymmetrical plate has been proposed so as to keep every throat passage away from being unstable at once, and the effect on suppression of the oscillation were investigated. In the present study, cavitation behaviors in the inducer is observed with distributing multi-cameras circumferentially, recording simultaneously and reconstructing multi-photos on one plane field as moving a linear cascade. Observed results are utilized for discussion with other measuring results as casing wall pressure distribution. Then the suppression mechanism of oscillation by installing axi-asymmetrical inlet plate will be clarified in more details.

• Journal of Digital Convergence
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• v.15 no.2
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• pp.511-518
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• 2017

The purpose of this study was to investigate the typology of response to unwanted sexual request, and find the characteristics according to the types. For this purpose, 332 college female students were surveyed. As a results, two group were identified through cluster analysis: assertive type and compliant type. Compliant type had more sexual experiences, consensual unwanted sex, reasons for sexual compliance. Furthermore, compliant type had more unstable attachment, rejection sensitivity, and loneliness. Implications related with prevention and education program for the high risk compliant group were discussed and ideas for health, education, psychological experts were suggested.