• Title/Summary/Keyword: S&T Human Resources

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Effects of Socio-Demographic Characteristics and Peer Relations on the Emotional, Behavioral, and Comorbid Disorder Symptoms in Low-SES Children

  • Sohn, Byoung-Duk
    • International Journal of Human Ecology
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    • v.11 no.1
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    • pp.49-63
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    • 2010
  • The current study examined the effects of socio-demographic characteristics and peer relations on the emotional, behavioral, and comorbid disorder symptoms among low-low-SES children, using the Young Lives Survey: an International Study of Childhood Poverty: Round 1, 2002. Participants were 1,000 8-year-old children (502 boys and 498 girls) from low-low-SES families. Data were analyzed using ANOVA, t-tests, post hoc test (Scheffe's method), correlations, and multiple logistic regression analyses according to the analysis strategy. There was a moderate correlation between selected socio-demographic variables and emotional/behavioral disorder symptoms, and the caregiver's marital status, child's health compared to others, child's work status corresponded to significant differences in their emotional/behavior levels. Regarding the logistic regression analysis, in addition to the effects of socio-demographic variables reflecting the characteristics of less-developed countries, marital status, child's working status, and conflicts with peers proved to be detrimental to emotional, behavioral, or comorbid disorder symptoms in low-SES children, who have been lack quality parenting, social resources, and child human rights. Results indicated the need to develop health care services that would address those problems and appropriate intervention and prevention programs targeting children in low-income families. Moreover, careful assessment and intervention for child's health status, child's working status and peer relationship problems are suggested as possible strategies for helping children at risk of exhibiting further problematic behaviors.

Antioxidant and Protective Effects of Leonurus sibiricus L. Extract on Ultraviolet B (UVB)-induced Damage in Human Keratinocytes (익모초 추출물의 항산화 효과와 자외선으로 유도된 각질형성세포 손상에 대한 보호효과)

  • Kim, Tae Yeon;Jang, Seon A;Chae, Yong Byung;Bak, Jong Phil
    • Korean Journal of Plant Resources
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    • v.29 no.1
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    • pp.11-19
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    • 2016
  • In this study, we investigated the anti oxidative potential and protective effects of water extract of Leonurus sibiricus L. leaf (LSLW) against ultraviolet B (UVB)-induced oxidative damage in human keratinocytes (HaCaT cells). To evaluate the anti oxidative activity of LSLW, we measured DPPH radical, hydroxyl radical, hydrogen peroxide, superoxide anion scavenging activities, lipid peroxidation inhibition, and reducing power of LSLW. For induction of oxidative stress in HaCaT cells, the cells were irradiated with UVB at 40 mJ/㎠. To investigate the protective effects of LSLW against UVB, we measured cell viability and apoptotic bodies using annexin V staining. LSLW showed anti oxidative activities by scavenging DPPH radical, hydroxyl radical, hydrogen peroxide, superoxide anion and by reducing lipid peroxidation. In addition, LSLW showed high reducing values. The UVB-induced oxidative conditions led to cell apoptosis. However, treatment with LSLW ameliorated oxidative stress conditions, including inhibition of cell death, apoptotic body. Taken together, LSLW exhibited anti oxidative and protective effects against UVB-induced damage in HaCaT cells. Thus, LSLW could be useful for the development of cosmetics for UVB-induced skin aging.

Building Science, Technology, and Research Capacity in Developing Countries: Evidence from student mobility and international cooperation between Korea and Guatemala

  • Bonilla, Kleinsy;Salles-Filho, Sergio;Bin, Adriana
    • STI Policy Review
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    • v.9 no.1
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    • pp.99-132
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    • 2018
  • Developing countries face numerous challenges in the process of building science, technology, and research capacity; in particular, the formation and accumulation of skilled S&T workforce. The lack of organized and sustainable higher education options (Master and Doctoral programs), nonexistent or low-quality academic programs, and the absence of research-oriented study options are some of the strong contributors for talented students to emigrate to developed countries. At the same time, the consolidation of a global knowledge economy, the internationalization of higher education, and the competition to attract foreign talent in industrialized countries present challenges for underdeveloped nations to retain their already scarce skilled human resources. In this context, student mobility has been used as a policy mechanism to cope with S&T workforce shortages in S&T laggard nations. It has also enabled opportunities for international cooperation to play a key role. While significant literature has been devoted to studying the gains of developed nations with the arrival and potential migration of the mobilized students, few scholarly inquiries have addressed the benefits and losses experienced by their countries of origin. More importantly, limited research can be found on policy options and policy implications for developing countries to deal with the dilemmas presented by the brain-drain/brain-circulation debate. The goal of this article is to study empirical evidence of an international cooperation initiative for student mobility between the Republic of Korea and Guatemala (implemented during 2009-2015). The paper analyzes this particular international cooperation experience from the perspective of the different actors involved and attempts to draw policy implications and policy options for developing countries to deal with potential risks and gains derived from international mobility for their S&T capacity building.

Facts and Needs of Comprehensive Child Edu-care Services in Daejeon (대전지역 보육서비스의 실태와 요구 분석 - 어린이집 교사를 대상으로)

  • Choi, Mock-Wha
    • Korean Journal of Human Ecology
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    • v.13 no.3
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    • pp.393-405
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    • 2004
  • The purpose of this study was to provide the basic data needed for developing comprehensive child edu-care programs that fits the regional needs. Subjects of the survey were the teachers of child edu-care centers in Daejeon. 95 teachers were selected from 20 child edu-care centers, using stratified random sampling method, from all of five municipal districts of the city. Gathered data were analyzed using SPSS 10.0 for reliability, factor analysis, frequency and percentile, mean, standard deviation, paired samples t-test and F-test. The summary of the findings were as follows: First, the result of survey on the child edu-care facts showed that the most child edu-care centers had the focus on caring and education programs of children, while emotional supports for family services and community social services were rather secondary importance. Therefore, to achieve the comprehensive service programs, child edu-care services should be harmonized by the education and welfare approaches. Second, centered around teacher's request, comprehensive child edu-care program that fits the regional characteristics focuses on family service; thus the program requires family group consulting, parents education etc., as well as focusing on community service to utilize local community's human, physical resources and to strengthen the tie between local community and child care services.

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Efficient Resource Slicing Scheme for Optimizing Federated Learning Communications in Software-Defined IoT Networks

  • Tam, Prohim;Math, Sa;Kim, Seokhoon
    • Journal of Internet Computing and Services
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    • v.22 no.5
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    • pp.27-33
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    • 2021
  • With the broad adoption of the Internet of Things (IoT) in a variety of scenarios and application services, management and orchestration entities require upgrading the traditional architecture and develop intelligent models with ultra-reliable methods. In a heterogeneous network environment, mission-critical IoT applications are significant to consider. With erroneous priorities and high failure rates, catastrophic losses in terms of human lives, great business assets, and privacy leakage will occur in emergent scenarios. In this paper, an efficient resource slicing scheme for optimizing federated learning in software-defined IoT (SDIoT) is proposed. The decentralized support vector regression (SVR) based controllers predict the IoT slices via packet inspection data during peak hour central congestion to achieve a time-sensitive condition. In off-peak hour intervals, a centralized deep neural networks (DNN) model is used within computation-intensive aspects on fine-grained slicing and remodified decentralized controller outputs. With known slice and prioritization, federated learning communications iteratively process through the adjusted resources by virtual network functions forwarding graph (VNFFG) descriptor set up in software-defined networking (SDN) and network functions virtualization (NFV) enabled architecture. To demonstrate the theoretical approach, Mininet emulator was conducted to evaluate between reference and proposed schemes by capturing the key Quality of Service (QoS) performance metrics.

Evaluation of Auditors' Professional Skills in Local Auditing Firms in Hanoi

  • NGUYEN, Thi Hanh Duyen;LE, Van Luyen;HAU, Nguyen Van;DO, Duc Tai;THAO, Nguyen Thi Thu
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.9
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    • pp.583-591
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    • 2020
  • In recent years, the quality of auditing human resources in domestic auditing firms in Hanoi has certain limitations in which professional skills of auditors have not been given adequate attention. The number of customers at local auditing firms is forecast to increase gradually. Therefore, the quantity and quality of auditors need to be improved to meet requirements of the workload. Data for this research were collected through surveying 120 customers of domestic auditing firms in Hanoi on the 5-point Likert scale. Based on the collected data, we employ both qualitative and quantitative methodology along with some tools such as descriptive statistics, Cronbach's Alpha, T-test and ANOVA to analysis, evaluate and measure the professional skills of auditors in local auditing firms in Hanoi. The results show that the professional skills of auditors in auditing firms include 17 attributes. The majority of respondents show appreciation for the professionalism and professional competence of auditors, while, they think that critical thinking skills and creative thinking skills are still limited and need to be improved. These findings, not only help auditors to improve themselves, but also provide solutions for managers of domestic auditing firms in Hanoi to enhance quality of audited human resources.

Design and Control of a Six-degree of Freedom Autonomous Underwater Robot 'CHALAWAN'

  • Chatchanayuenyong, T.;Parnichkun, M.
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.1110-1115
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    • 2004
  • Water covers two-thirds of the earth and has a great influence on the future existence of all human being. Thailand has extensive coastline and near shore water that contain vast biological and mineralogical resources. The rivers and canals can be found around the country especially in the Bangkok, which once called the Venice of the East. Autonomous underwater robot (AUR) will be soon a tool to help us better understand water resources and other environmental issues. This paper presents the design and basic control of a six-degree of freedom AUR "Chalawan", which was constructed to be used as a testbed for shallow. It is a simple low cost open-frame design, which can be modified easily to supports various research areas in the underwater environment. It was tested with a conventional proportional-integral-derivative (PID) controller. After fine-tuning of the controller gains, the results showed the controller's good performances. In the future, the dynamic model of the robot will be analyzed and identified. The advanced control algorithm will be implemented based on the obtained model.

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A Study on Middle School Student′s Application of Home Economics Course and Its Related Variables (중학교 학생의 가정교과 활용도와 관련변수에 관한 연구)

  • 김경숙;박미금
    • Journal of Korean Home Economics Education Association
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    • v.10 no.1
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    • pp.95-106
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    • 1998
  • The purposes of this study is to find middle school student's application of Home Economics course and its related variables. The samples are 323 middles school students in Kangneung. For the statistics analysis of this study, frequency, mean, Cronbach's a coefficient, ANOVQ, t-test, Pearson'correlation and multiple regression were calculated. The results of this study are summarized as follows ; 1. It is appeared that middle school student's application of Home Economics course are the food, human development and family relationship family, resources management and the consuming, the clothing. 2. Variables that affect middle school student's application of Home Economics course are the vocation of father, way of learning about home life skill, agreement with educational goal of Home Economic, evaluation of Home Economic teacher, evaluation of education field, participation in class of Home Economic and needs for Home Economics. 3. The explanation degree of these seven variables is 27.7% and needs for Home Economics is the most domineering variables.

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$\beta$-Glucan enhanced apoptosis in human colon cancer cells SNU-C4

  • Kim, Mi-Ja;Hong, Se-Young;Kim, Sun-Kyu;Cheong, Chul;Park, Hong-Ju;Chun, Hye-Kyung;Jang, Ki-Hyo;Yoon, Byung-Dae;Kim, Chul-Ho;Kang, Soon-Ah
    • Nutrition Research and Practice
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    • v.3 no.3
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    • pp.180-184
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    • 2009
  • The apoptotic effect of bacteria-derived $\beta$-glucan was investigated in human colon cancer cells SNU-C4 using terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) assay, reverse transcription-polymerase chain reaction (RT-PCR) expressions of Bcl-2, Bax, and Caspase-3 genes, and assay of caspase-3 enzyme activity. $\beta$-Glucan of 10, 50, and $100{\mu}g$/mL decreased cell viability in a dose-dependent manner with typical apoptotic characteristics, such as morphological changes of chromatin condensation and apoptotic body formation from TUNEL assay. In addition, $\beta$-glucan ($100{\mu}g$/mL) decreased the expression of Bc1-2 by 0.6 times, whereas the expression of Bax and Caspase-3 were increased by 3.1 and 2.3 times, respectively, compared to untreated control group. Furthermore, the caspase-3 activity in the $\beta$-glucan-treated group was significantly increased compared to those in control group (P < 0.05). Bacterial derived $\beta$-glucan could be used as an effective compound inducing apoptosis in human colon cancer.

Analysis of the Compensation Level and Portfolio for Advanced S&T Manpower (고급 과학기술인력의 보상 수준과 포트폴리오에 관한 분석)

  • Min, Chul-Koo
    • Journal of Technology Innovation
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    • v.18 no.1
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    • pp.219-245
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    • 2010
  • The purpose of this study is to design the compensation model by analyzing the compensation level for advanced science and technology manpower. The result of this study can be summarized as follows. First, advanced S&T manpower has preferred not only economic rewards, but also non-economic rewards which comprises both social reputation, self-satisfaction for job and other aspects of life. Second, the way of what high grade human resources in S&T have preferred to be rewarded differs among agencies. While professors in universities prefer research environment, researchers working for GRIs(Government-funded research institutes) want to have job stabilization and researchers in companies want to have higher monetary reward. Third, two main factors to change their occupation have been turned out to be monetary reward and social reputation. It means that the compensation system should satisfy what advanced S&T manpower at GRIs and companies need upgrading their social reputation.

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