• Journal of The Korean Astronomical Society
• /
• v.52 no.4
• /
• pp.109-119
• /
• 2019

While the reverberation mapping technique is the best available method for measuring black hole mass in active galactic nuclei (AGNs) beyond the local volume, this method has been mainly applied to relatively low-to-moderate luminosity AGNs at low redshift. We present the strategy of the Seoul National University AGN Monitoring Project, which aims at measuring the time delay of the $H{\beta}$ line emission with respect to AGN continuum, using a sample of relatively high luminosity AGNs out to redshift z ~ 0.5. We present simulated cross correlation results based on a number of mock light curves, in order to optimally determine monitoring duration and cadence. We describe our campaign strategy based on the simulation results and the availability of observing facilities. We present the sample selection, and the properties of the selected 100 AGNs, including the optical luminosity, expected time lag, black hole mass, and Eddington ratio.

• The Bulletin of The Korean Astronomical Society
• /
• v.46 no.1
• /
• pp.53.3-54
• /
• 2021

We present optical follow-up observation results of three binary black hole merger (BBH) events, GW190408 181802, GW190412, and GW190503 185404, which were detected by the Advanced Ligo and Virgo gravitational wave (GW) detectors. Electromagnetic (EM) counterparts are generally not expected for BBH merger events, however, some theoretical models suggest that EM counterparts of BBH can possibly arise in special environments. To identify EM counterparts of the three BBH merger events, we observed high-credibility regions of the sky with telescopes of the Gravitational-wave EM Counterpart Korean Observatory (GECKO), including the Korea Microlensing Telescope Network (KMTNet). Our observation started as soon as 100 minutes after the GW event alert and covered roughly 29 - 63 deg2 for each event with a depth of 22.5 mag in R-band within hours of observation. No plausible EM counterparts were found for these events. Our result gives a great promise for the GECKO facilities to find EM counterparts within few hours from GW detection in future GW observation runs.

• Journal of Korean Public Health Nursing
• /
• v.33 no.3
• /
• pp.354-363
• /
• 2019

Purpose: This study was undertaken to identify factors related to quit-smoking intention based on the planned behavior theory among out-of-school youths. Methods: This study was a quantitative research, data were collected during Nov. 1. 2018 to Feb. 28, 2019, study subjects were 189 out-of-school youths in Youth support Center located in A, B, C area city. The data were analyzed using independent sample t-test and one-way ANOVA, Pearson's correlation coefficient, and multiple linear regression. Results: There was a significant differences of quit smoking intention according to age, weekly allowance, participate of antismoking program. There were positive correlations between quit smoking intention and attitude to non-smoking and perceived behavior control. In smoking cessation intention influenced by predictive variable, age, weekly allowance, attitude to non-smoking, and perceived behavior control explain 26.8% smoking cessation intention. Conclusion: We believe that findings from this study will help to develop the specific smoking cessation education program for out-of-school youth's health behaviors.

• Journal of The Korean Astronomical Society
• /
• v.52 no.1
• /
• pp.11-21
• /
• 2019

Intensive Monitoring Survey of Nearby Galaxies (IMSNG) is a high cadence observation program monitoring nearby galaxies with high probabilities of hosting supernovae (SNe). IMSNG aims to constrain the SN explosion mechanism by inferring sizes of SN progenitor systems through the detection of the shock-heated emission that lasts less than a few days after the SN explosion. To catch the signal, IMSNG utilizes a network of 0.5-m to 1-m class telescopes around the world and monitors the images of 60 nearby galaxies at distances D < 50 Mpc to a cadence as short as a few hours. The target galaxies are bright in near-ultraviolet (NUV) with $M_{NUV}$ < -18.4 AB mag and have high probabilities of hosting SNe ($0.06SN\;yr^{-1}$ per galaxy). With this strategy, we expect to detect the early light curves of 3.4 SNe per year to a depth of R ~ 19.5 mag, enabling us to detect the shock-heated emission from a progenitor star with a radius as small as $0.1R_{\odot}$. The accumulated data will be also useful for studying faint features around the target galaxies and other science projects. So far, 18 SNe have occurred in our target fields (16 in IMSNG galaxies) over 5 years, confirming our SN rate estimate of $0.06SN\;yr^{-1}$ per galaxy.

• Journal of Family Resource Management and Policy Review
• /
• v.19 no.4
• /
• pp.121-140
• /
• 2015

This study tried to develop and suggest the program for the family friendly culture in Healthy Families Center. This study focused on specially the cooking program on which entire family member can participate. To develop the program two theoretical perspectives were applied : 1. healthy families perspectives and family leisure, 2. child development perspectives. In the process for developing the program the related literatures were investigated and the proceding cases were analized. The developed program consisted of 4 parts : 1. today, I(child) am the chef, 2. today, daddy(or mommy) is the chef, 3. for my parents and for my kids, 4. let's take a familytrip with snacks. This program is to be made suitable for the families with child(ren) in school age. We suggested various strategies for the effective management the program in Healthy Families Center such as the program manual and workbook, the time duration of program, three steps(introduction-performance-closing) of each session and using the professionals. We suggested the pilot performance of this program for the confirmation the effectiveness of the program. The evaluation index can be used before and after the program implementation. Further research needs to investigate the program for another family life cycle, such as the family with the child(ren) of preschool age or youth child(ren). In addition, for the enhancement of professionals quality who lead the program in field the professionals academy or education program need to be offered.

• Korean Journal of Social Welfare
• /
• v.48
• /
• pp.302-332
• /
• 2002

This study aimed at finding out the effectiveness of Solution-Focused Group Therapy Program in reducing delinquents' problematic behaviors and increasing their self-esteem, impulse control, communication with the parents and bettering their daily life habits. Thirty one male delinquents under probation from a Probation Center in Seoul were chosen and given a Solution-Focused Group Therapy for 30 hours. For a comparison purpose another 31 male delinquents were chosen from the same Center. To evaluate the effectiveness of the Program, items were selected and used from Rosenberg's Self-Esteem Scale. Youth Outcome Questionnaire Self Report 2.0, Brief Family Therapy Center-Child/Teen Solution Identification Scale. Participants' and parents' self-reports on participants' changes and session progress records were also used for qualitative evaluation. The results showed some positive changes in participants' self-esteem, self-control, communication style with parents, and daily life habits. No illegal act was reported after nine months upon this Program, which posits this type of Solution-Focused Group Therapy Program as a viable solution for the prevention and recidivism of juvernile crimes.

• Korean Journal of Social Welfare
• /
• v.62 no.4
• /
• pp.149-170
• /
• 2010

The purpose of this study to develop a human rights education program for improving human rights sensitivity of the teachers in community child center, and verify its effectiveness. For this purpose, pre-program and post-program analysis was conducted by using human rights sensitivity scale on 102 teachers working in community child center. The major results of this study is as follows: First, the teachers' human rights sensitivity was statistically improved. Second, the teachers' ability of situation perception, ability of consequence perception, and ability of consequence perception were statistically improved. Third, the teachers' human rights sensitivity on "the right not to be arrested illegally", "physical liberty of the disabled", "the right to labor by migrant workers", and "freedom from detention" was statistically improved. Based on the research results, practical implications and limitations were discussed for developing human rights education program.

• Korean Journal of Social Welfare Studies
• /
• v.49 no.2
• /
• pp.125-157
• /
• 2018

In the reality that the seriousness and concern about the youth problem is increasing, this study focuses on the vision plan project supporting the NEET youth in the social welfare field. Therefore, this study analyzed how the social workers recognized the NEET problem before participating in the project, what difficulties they experienced in the process of the project, and how they coped with these difficulties. The results of the study are as follows. Social workers were saddened by the seriousness of the youth problem before their participation, but they recognized that there was no way to solve it and many social workers were not fully aware of the youth or NEET issues. In this context, in the course of running a project with NEET youth, social workers experienced difficulties due to the nature of the NEET youth, difficulty in forming a relationship with NEET youth, and difficulties for young people not to spend time in the program. And social workers also faced difficulties due to the lack of know-how in the project, difficulties in operating the center alone, and difficulty in achieving employment goals. In the process of coping with these difficulties, social workers have actively sought, persuaded and supported the NEET youths to participate in the project, adapted the time, place and method to the youth, and removed the stigmatization element in the project. They also worked closely with local residents, local institutions and municipalities, formed networks, and changed the viewpoint of providing work experience rather than getting young people, but seeing long-term outcome. As a result, social workers have experienced not only individual change but also social welfare organization, field, community and local institutional change. Based on these results, this study suggested that the social welfare practice field should provide various activities in the process of supporting the youth gap year policy. In addition, this study suggests that the social workers play a role in connecting various actors rather than suppliers when working with young people, and that the social welfare field should expand the scope of project to include youth.

• Journal of The Korean Society of Integrative Medicine
• /
• v.11 no.4
• /
• pp.17-25
• /
• 2023

Purpose: This study aimed to examine the effectiveness of a suicide prevention education program called "Life Talk Talk" among middle and high school students in D City. Methods: The educational content of the "Life Talk Talk" program was compiled through nine rounds of consultations and meetings with suicide prevention experts. Prior to the implementation of the program, consent was obtained from all research participants and their guardians. First , a pilot study was conducted with 100 middle and high school students located in D city, following which the present study was conducted from May to July 2023 with 1,400 middle and high school students in D city. The effects of the program were evaluated by assessing the changes in suicidal ideation, help-providing abilities, and suicide prevention knowledge in the data collected both before and after the education. Statistical analysis included frequency analysis and a paired-sample t-test. Results: The final analysis included 1,380 participants. In the general characteristics,, 1,079 people (78 %) answered "yes" to the question about suicide prevention education experience . The study found a significant decrease in suicidal attitudes (t=-8.92, p<.001) and significant improvements in emotional and cognitive attitudes of participants after the "Life Talk Talk" program . Additionally, all five items related to help-providing abilities (t=-23.83, p<.001) and suicide prevention knowledge (p<.001) showed significant improvement from before the program. Conclusion: The significance of this study lies in demonstrating the effectiveness of the "Life Talk Talk" suicide prevention education program in reducing suicidal attitudes as well as improving help-providing abilities and suicide prevention knowledge. Therefore, to enhance the effectiveness of suicide prevention education, it is essential to regularly implement concise and engaging educational programs that capture the attention of adolescents.

• Journal of Agricultural Extension & Community Development
• /
• v.8 no.1
• /
• pp.73-83
• /
• 2001

North Dakota State University (NDSU) Extension Service's purpose was to create a learning partnership that helped adults and youth enhance their lives and communities. NDSU Extension Service has maintained a strong blend of county, regional and state staff to support their program delivery. Experiment Station and Extension Service were integrated both in their job duties and at the administrative level. While researchers at the campus and center carried out both research and outreach activities with producers, Extension staff both at county and center carried out some research activities as well as outreach activities. The strong county-based Extension network was the main avenue for program delivery. Extension agents also provide programs on a multi-country basis. Program planning includes county advisory councils, multi-county advisory councils, support groups, and commodity groups, such as farmers and business people. Planning was used to shape their long-range plan of work along with adjustments to their annual activities. Funding of the NDSU Extension Service has been a blend of federal, state, and county dollars. In the past few years, grant dollars and agency partnerships have increased. Local input into extension programs, combined with support and funding from state and federal partners, enabled the extension service to truly meet the needs of people.