• Bulletin of the Korean Chemical Society
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• 제35권9호
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• pp.2694-2698
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• 2014

A multisegmented polystyrene (PS) with pH-cleavable ester and carbamate linkages was successfully synthesized by a combination of atom transfer radical polymerization (ATRP) and Cu(I)-catalyzed 1,3-dipolar cycloaddition of azide and alkynes (click chemistry). ATRP was employed to synthesize polystyrene from hydroxyl-terminated initiator using CuBr/N,N,N',N",N"-pentamethyldiethylenetriamine (PMDETA) as the catalyst. The reaction of the resulting PS with sodium azide yielded the azido-terminated polymer. The hydroxyl group in the other end of the polymer was reacted with 4-nitrophenyl chloroformate (NPC), followed by reaction with propargylamine to produce an alkyne end group with a carbamate linkage. The PS with an alkyne group in one end and an azide group in the other end was then self-coupled in the presence of CuBr/2,2'-bipyridyl (bpy) in DMF to yield a desired multisegmented PS. Molecular weight and molecular weight distribution of the self-coupled polymer increased with time, as in the typical step-growth-type polymerization processes. Finally, we demonstrated that the ester and carbamate linkages of the multisegmented PS were hydrolyzed in the presence of HCl to yield individual PS chains.

• 한국학교ㆍ지역보건교육학회지
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• 제21권2호
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• pp.73-86
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• 2020

Objectives: The purpose of this study was to effects of education program of smoking prevention and cessation through the linkages between subjects on smoking knowledge, grit, health promoting behaviors of college students in some area. Methods: A non-equivalent control group pre-post test design was used. The intervention group received the education program for 6 weeks from October 1 to November 15, 2019. The control group lived only usual daily life. Results: t-test showed that Smoking Knowledge (t=3.78, p<.001) and grit (t=3.75, p<.001) were significant differences between the two groups. In terms of health promotion behaviors, total(t=2.89, p=.002) and physical activity(t=3.20, p=.002), health responsibility(t=3.90, p<.001), spiritual growth(t=1.99, p=.049), interpersonal relations(t=2.61, p=.010) were significant difference between the two groups, in other hands nutrition(t=0.89, p=.372) and stress management(t=1.69, p=.092) were no significant difference between two groups. Conclusions: the education program of smoking prevention and cessation through the linkages between subjects was founded to be an effective education program in improving smoking Knowledge, grit, health promoting behaviors of college students in some area.

• 한국산업정보학회논문지
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• 제5권4호
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• pp.81-93
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• 2000

It is important to find the competitive priority, which makes a great contribution to the action plans. The reason is that this makes it possible to provide Korean manufacturers with effective behavioral model to break through the depression after 1997'financial crisis in Korea. Focused priority has become a focus of organizations faced with the need to survive in a highly uncertain business environment characterized by rapid technological change, global competition, and demanding customers. Many believe that better linkages of priority and action plans are fundamental to surviving in the world market. However, there was little previous research dealing with the relationship between the strategic priority and action plans in the view of competitive weapon. This study presents empirical findings on differences between U.S. and Korean manufacturing approach to relationship of priority and plans. Specially, Korean manufacturers are eager for good model to overcome depression of 1997' financial crisis in Korea. Data was collected as part of the Manufacturing Futures Project completed in 1996. The results indicate that U.S. manufacturers maintain focused linkages from priority to action plans than do Korean manufacturers.

• 성인간호학회지
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• 제23권2호
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• pp.180-188
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• 2011

Purpose: This study was to identify nursing diagnosis-outcome-intervention (NANDA- NOC-NIC: NNN) linkages applied to inpatients in general surgical nursing units. Methods: We developed the NNN linkage computerized nursing process program, which consisted of the 107 nursing outcomes and the 190 nursing interventions linked to the 39 nursing diagnoses. This program was applied to 324 patients who admitted to those nursing units from July, 2004 to February, 2005. Results: First, nursing outcomes of each nursing diagnosis were identified as follows: for 'acute pain', pain control, pain level, and comfort level; for 'risk for infection', wound healing: primary intention, wound healing: secondary intention, and infection status; for 'nausea', nutritional status: food & fluid intake, comfort level, symptom severity and hydration. Second, major nursing interventions for each nursing outcome were analyzed as follows: for pain control or comfort level, pain management and medication management; for pain level, pain management and analgesic administration; for wound healing: primary intention, incision site care and wound care; for Wound healing: secondary intention or infection status, infection control; for nutritional status: food & fluid intake, fluid monitoring; for comfort level, nausea management; for symptom severity, nausea management and vomiting management; for hydration, fluid/electrolyte management. Conclusion: This identified NNN linkages will facilitate the use of nursing process in surgical nursing practice and documentation systems.

• 대한기계학회논문집
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• 제17권6호
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• pp.1330-1341
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• 1993

본 연구에서는 회전대우(revolute joint)들로 이루어진 1자유도 평면기구들의 특성을 파악하고 그래이프이론(graph theory)을 이용하여 기구의 형태를 행렬로 표시 하여 체이터베이스에 저장하였다. 또한 기구의 특성중의 하나인 작업조건(function specification)에 따른 무오차점(precision point)의 최대 개수를 알아내는 프로그램 을 개발하여 이로써 얻은 정보를 또 다른 데이타베이스에 저장하였다. 이와같이 구축 된 데이터베이스들로부터 설계자의 요구에 적합한 기구를 선택하여 형태합성 문제를 해결하였다.

• 여성건강간호학회지
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• 제22권3호
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• pp.170-181
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• 2016

Purpose: The aim of this study was to identify the nursing diagnosis-outcome-intervention (NANDA-NOC-NIC) linkages for gynecology inpatients shown in their electronic nursing records. Methods: This retrospective and descriptive research was conducted in two steps and based on the 287 electronic nursing records for 253 patients. First, nursing diagnoses, outcomes and interventions were collected. To identify major nursing diagnoses, a comparison was done with the top 10 nursing diagnoses from this research and with previous research selected using a content validity index developed by a team of professionals. Second, nursing outcomes and interventions that were associated with major nursing diagnoses were identified. Results: Nineteen nursing diagnoses, 12 nursing outcomes, and 40 nursing interventions were collected. The top 5 major nursing diagnoses were identified and 7 nursing outcomes and 18 nursing interventions associated with these diagnoses were checked. Conclusion: The identified NANDA-NOC-NIC linkages can contribute to improving nursing practice and will help in the establishment of standardized nursing care.

• The Journal of Asian Finance, Economics and Business
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• 제8권3호
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• pp.1217-1230
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• 2021

Using a multinomial logit model with the panel-data set of Vietnam manufacturing firms, this paper investigates the impacts of foreign direct investment (FDI) - small and medium enterprises (SMEs) linkages and other factors on SMEs' participation in the global value chain (GVC). We consider GVC firms are those engaging in any of the three modes including (i) using domestic inputs to export (D2E), (ii) using imported inputs to produce for the domestic market (I2P), (iii) using imported inputs to export (I2E). We discover that FDI-SME linkages statistically encourage Vietnamese SMEs to integrate into the GVC via I2P and I2E, while no statistical association between FDI-SME linkage and D2E participation is found. GVCs participation likelihood is also positively correlated with the introduction of new product introduction. The establishment of firms' production facilities in industrial zones and foreign ownership are both reported to be significantly decisive factors to SMEs' decisions on GVC participation. Besides, there is a strong association between firms' attributes, i.e. employment, capital intensity as well as financial access, and their participation in the GVC. Local governance quality (proxied by the Provincial Competitiveness Index) and the share of skilled labor at the province-level can facilitate firms' integration into GVCs, while greater market concentration may be a hurdle to such potential.

• East Asian Economic Review
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• 제26권2호
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• pp.119-142
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• 2022

This paper uses social network theory and the internationalization process model (IPM) to determine how external network linkages influence the location choices of multinational enterprise from emerging economies (EMNEs); specifically, whether past alliance experience influences location choices and its impact on the subsequent entry of MNEs from emerging economies. This paper applies survival analysis using initial and secondary investments from 2,000 Chinese A-share listed companies that entered 90 countries between 1997 and 2018 to analyze both the initial and subsequent entries of Chinese outward foreign direct investments (OFDIs) in major host countries. The findings indicate that an MNE's previous experience with a company from a particular country will increase the likelihood of an initial investment in that country. Previous alliance experience may accelerate the foreign investment process of EMNE and stimulate firms making a commitment to a position in a foreign network, regardless of cultural distance and stage of internationalization. Alliance before initial investment may increase the likelihood and speed of entering a host country as wholly owned subsidiaries and that network linkages not only significantly influence the internationalization process of small and medium-sized enterprises, as indicated by the IPM, but also that of large listed firms.

• 무역학회지
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• 제47권4호
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• pp.233-254
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• 2022

Although there is growing literature evidence of linkages between global value chains (GVCs) and foreign direct investment (FDI), the results are mixed and ambiguous by geographic dimension, time period and sectoral scope. Moreover, bilateral approaches on these connections have been rarely analyzed. In this context, we investigate the effect of bilateral greenfield FDI and cross-border M&A on GVC linkages between host countries and source countries. We match three-year averages of bilateral FDI and UNCTAD-Eora GVC value-added data from 2005 to 2019 between 37 OECD sources and 176 host countries (37 OECD versus 139 non-OECD countries). In the structural gravity model, the empirical specification includes bilateral and country-period fixed effects and uses a Poisson Pseudo-Maximum Likelihood (PPML) estimator. We find that greenfield and M&A FDI promote forward and backward GVC linkage for all sectors between OECD countries, whereas greenfield FDI promotes backward GVC linkage between OECD and non-OECD countries. In addition, the results indicate that the degree of influence of GVCs by FDI flows is greater for forward GVC than backward GVC among OECD countries.

• 한국노년학
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• 제29권4호
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• pp.1665-1683
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• 2009

이 연구의 목적은 아동들과 노인들이 만드는 세대공동체가 노인들에게 주는 의미와 세대공동체 구현을 저해하는 요인을 밝히는 데 있다. 이를 위해 문화기술적 연구의 주요 방법인 참여관찰 및 면담 기법을 사용하였으며, 연구 참여자는 총 24명이다. 연구 결과, 노인들은 아동들과 세대공동체 구현을 위한 다양한 프로그램에 참여하면서 다음과 같은 의미체계를 만들어 갔다. 첫째, 세대 간의 의사소통이 원활해짐에 따라 세대 간의 이해가 증대된다. 둘째, 공동체 안에서의 자연스러운 조화로 함께 성장하는 문화가 형성된다. 셋째, 삶에 대한 만족감과 자신감이 회복되어 자기 효능감이 높아진다. 넷째, 유목적이고 창조적인 활동을 통하여 새로운 놀이문화를 창조한다. 다섯째, 끊임없이 배우며 나누는 기쁨을 공유한다. 그러나 이 과정에서 경직화된 관료주의적인 운영과 프로그램에 참여하는 노인들의 다양한 개인차와 같은 문제점을 발견하였다. 또 세대공동체 형성을 위한 프로그램 부족과 세대 간 접촉기회의 부족도 문제점으로 지적할 수 있었다. 그러나 세대공동체 구현을 위한 노력은 세대 간의 이해와 협조를 돕고 노인들의 성공적 노화에 기여함을 알 수 있었다.