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Urban Regeneration Plan for Mid-sized Cities Deploying the Concept of Smart City - Focused on the US Smart City Challenge in 2015 - (스마트시티 개념을 이용한 중소도시재생계획에 대한 연구 - 2015 미국 스마트시티챌린지 공모전을 중심으로 -)

  • Yoo, Seungho;Kim, Yongseung;Kim, Soyeon
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.9
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    • pp.29-40
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    • 2019
  • The concept of smart city is understood as an indispensable component of urban regeneration projects in small cities in terms of providing a better urban environment and efficient living systems with a limited budget. Recently, the Korean government revised the law that related to the construction of the smart city and started to implement the smart city concept not only to new-large urban development but also to small-existed regeneration projects. However, it is difficult for small and medium-sized cities that are suffering from the insufficient professional workforce; knowledge supports for high-tech and lack of professional networks to proceed smart city planning and project that containing regional characteristics. This paper aims to examine the effective way of urban regeneration for small and medium-sized cities through smart city planning and strategy. As an important case, this paper looks at the 'Smart City Challenge' competition that was hosted by the US Department of Transportation in 2015. It examines the background and operation process of the smart city challenge competition, and then analyses each city's strategy and characteristics of seven finalists. This paper highlights the several key lessons to Korean cities: 1) the importance of national government's support in financial and professional resources; 2) the cooperation with local governments and IT corporations which provides realistic and detailed technical solutions; 3) the holistic and integrated approach to urban regeneration starting from transportation issues; 4) the necessity of the government's clear visions and guidelines toward the smart city.

Topic Modeling and Keyword Network Analysis of News Articles Related to Nurses before and after "the Thanks to You Challenge" during the COVID-19 Pandemic (COVID-19 '덕분에 챌린지' 전후 간호사 관련 뉴스 기사의 토픽 모델링 및 키워드 네트워크 분석)

  • Yun, Eun Kyoung;Kim, Jung Ok;Byun, Hye Min;Lee, Guk Geun
    • Journal of Korean Academy of Nursing
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    • v.51 no.4
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    • pp.442-453
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    • 2021
  • Purpose: This study was conducted to assess public awareness and policy challenges faced by practicing nurses. Methods: After collecting nurse-related news articles published before and after 'the Thanks to You Challenge' campaign (between December 31, 2019, and July 15, 2020), keywords were extracted via preprocessing. A three-step method keyword analysis, latent Dirichlet allocation topic modeling, and keyword network analysis was used to examine the text and the structure of the selected news articles. Results: Top 30 keywords with similar occurrences were collected before and after the campaign. The five dominant topics before the campaign were: pandemic, infection of medical staff, local transmission, medical resources, and return of overseas Koreans. After the campaign, the topics 'infection of medical staff' and 'return of overseas Koreans' disappeared, but 'the Thanks to You Challenge' emerged as a dominant topic. A keyword network analysis revealed that the word of nurse was linked with keywords like thanks and campaign, through the word of sacrifice. These words formed interrelated domains of 'the Thanks to You Challenge' topic. Conclusion: The findings of this study can provide useful information for understanding various issues and social perspectives on COVID-19 nursing. The major themes of news reports lagged behind the real problems faced by nurses in COVID-19 crisis. While the press tends to focus on heroism and whole society, issues and policies mutually beneficial to public and nursing need to be further explored and enhanced by nurses.

The Effect of Empowering Leadership on Adaptive Performance: The Mediating Effect of Job Challenge and the Moderating Effect of Agentic and Communal Traits (임파워링 리더십이 적응수행에 미치는 영향: 직무도전성의 매개 효과와 독자성·융화성 성향의 조절효과)

  • Sun-Hwa Jung;Eun-Ji Park;He-Yeon Kim;Ji-Hwan Park
    • Asia-Pacific Journal of Business
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    • v.14 no.3
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    • pp.67-88
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    • 2023
  • Purpose - This study examined the effect of empowering leadership on adaptive performance and verified the mediating effect of job challenge in the relationship between empowering leadership and adaptive performance. Additionally, this study investigated the moderating effect of agentic and communal traits in the relationship between supervisor's empowering leadership and adaptive performance of subordinates. Design/methodology/approach - This study used data collected from 279 participants via an online platform. Multiple regression analysis, bootstrapping, hierarchical regression analysis, and simple slope test were used to analyze the data. Findings - First, supervisor's empowering leadership had a positive effect on adaptive performance. Second, job challenge was found to mediate the relationship between supervisor's empowering leadership and adaptive performance. Third, the agentic trait showed a moderating effect on strengthening the relationship between supervisor's empowering leadership and adaptive performance. However, communal trait did not show a moderating effect. Research implications or Originality - This study examined the moderating effect of agentic traits in the relationship between empowering leadership and adaptive performance, which has not been investigated before.

Immuno-protective effect of commercial IBD vaccines against emerging novel variant infectious bursal disease virus in specific-pathogen-free chickens

  • Hayatuddeen Bako Aliyu;Tasiu Mallam Hamisu;Mohd Hair-Bejo;Abdul Rahman Omar;Aini Ideris
    • Journal of Veterinary Science
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    • v.25 no.5
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    • pp.70.1-70.12
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    • 2024
  • Importance: Infectious bursal disease (IBD) is an important viral poultry disease that vaccination can control. Objective: This study examined the immune protection of immune-complex (Vaccine A) and attenuated live (Vaccine B) IBD vaccines in specific-pathogen-free (SPF) chickens against a novel Malaysian variant IBD virus (vaIBDV) challenge. Methods: One-day-old (n =75) SPF chickens were divided randomly into the following three groups of 25 chicks each: Control, Vaccine A, and Vaccine B groups. The vaIBDV strain, UPM1432/2019, was used for the challenge at 21 and 28days post-vaccination (dpv). Five birds from unchallenged and challenged groups were sacrificed seven days post-challenge, and blood, bursa, spleen, and cloacal swabs were collected. The IBD antibodies (Abs), lymphoid lesions, and viral load were determined. Results: The UPM1432/2019 virus induced bursal damage in vaccinated SPF chickens despite Ab titers. The mean Ab titers of the Vaccine A challenged group were significantly lower (p < 0.002) than in the unchallenged group at 28 dpv. The bursal indices of the vaccinated unchallenged groups did not differ significantly from those of the vaccinated challenged groups (p = 0.94). Microscopically, the bursae of the challenged groups showed significant atrophy. The bursal lesion score was higher (p < 0.05) in the control and Vaccine B challenged groups than the Vaccine A challenged group. The challenged group had a higher viral load than the vaccinated groups (p < 0.001). Conclusions and Relevance: Neither vaccine fully protected against a vaIBDV challenge, highlighting the limitations of current vaccines and the need for further research.

Evaluation of musculoskeletal disorders risk of 119 emergency medical technicians during emergency medical services procedures in firefighter combat challenge (119 구급대원의 근골격계 질환 위험성 평가 - 소방기술경연대회 구급종목을 대상으로 -)

  • Son, Jeong-Won;Park, Jae-Bum
    • The Korean Journal of Emergency Medical Services
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    • v.21 no.3
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    • pp.59-71
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    • 2017
  • Purpose: The purpose of the study was to evaluate the ergonomic risk factors of 119 emergency medical technicians (EMT) with musculoskeletal disorders, performing emergency medical services (EMS) procedures in a firefighter combat challenge. Methods: The evaluated EMT procedures were cardiopulmonary resuscitation (CPR) & intubation, trauma patient assessment, and intravenous (IV) injection. Measurement of working posture was done during training. Results: In CPR & intubation, OWAS-score was 2 (mean 1.9, maximum 4), requiring correction action, while REBA-score was 11 (mean 7.28, maximum 11), requiring immediate improvement. In trauma patient assessment & IV injection, OWAS-score was 4 (mean 2.9, maximum 4), requiring immediate correction action, while the REBA score was 7 (mean 7.5, maximum 11), requiring improvement. Conclusion: Both OWAS score and REBA-score showed improvement of posture and high-risk of musculoskeletal disorders. Occupational health management in EMS procedures during combat challenge and effective injury prevention program in fire stations are warranted.

Treatment of Cow's Milk Protein Allergy

  • Vandenplas, Yvan;De Greef, Elisabeth;Devreker, Thierry
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.17 no.1
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    • pp.1-5
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    • 2014
  • The diagnosis and treatment of cow's milk protein allergy (CMPA) is still a challenge. A systematic literature search was performed using Embase, Medline, The Cochrane Database of Systematic Reviews and Cochrane Central Register of Controlled Clinical Trials for the diagnosis and treatment of cow's milk allergy (CMA). Since none of the symptoms of CMPA is specific and since there is no sensitive diagnostic test (except a challenge test), the diagnosis of CMPA remains difficult. A "symptom-based score" is useful in children with symptoms involving different organ systems. The recommended dietary treatment is an extensive cow milk based hydrolysate. Amino acid based formula is recommended in the most severe cases. However, soy infant formula and hydrolysates from other protein sources (rice) are gaining popularity, as they taste better and are cheaper than the extensive cow's milk based hydrolysates. Recent meta-analyses confirmed the safety of soy and estimate that not more than 10-15% of CMPA-infants become allergic to soy. An accurate diagnosis of CMA is still difficult. The revival of soy and the development of rice hydrolysates challenge the extensive cow's milk based extensive hydrolysates as first option and amino acid formula.

A Review on the Studies of the Societal Challenge and Technological Innovation ('사회문제 해결과 과학기술혁신' 연구의 현황과 과제)

  • Song, Wichin
    • Journal of Technology Innovation
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    • v.25 no.4
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    • pp.17-45
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    • 2017
  • This article reviews studies on the societal challenge and technological innovation. Technological innovation in response to social problems is a relatively recent topic of Innovation Studies. Socially-oriented innovations and policies are different in terms of the goals, innovation processes, and ecosystems when compared with industrial innovation. This study examines the existing research that discusses science and technology innovation from the viewpoint of solving societal problems and discusses the direction of future research. This paper presents major research issues on the characteristics of innovation in societal problem solving, innovation governance, roles and ecosystem of innovators, and relationship between societal problem solving policies and other policies.

Biphasic Tumor Oxygenation during Respiratory Challenge may Predict Tumor Response during Chemotherapy

  • Lee, Songhyun;Jeong, Hyeryun;Anguluan, Eloise;Kim, Jae Gwan
    • Current Optics and Photonics
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    • v.2 no.1
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    • pp.1-6
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    • 2018
  • Our previous study showed that switching the inhaled gas from hypoxic gas to hyperoxic gas for 10 minutes increased tumor oxygenation and that the magnitude of oxyhemoglobin increase responded earlier than tumor volume change after chemotherapy. During 10 minutes of inhaled-oxygen modulation, oxyhemoglobin concentration first shows a rapid increase and then a slow but gradual increase, which has been fitted with a double-exponential equation in this study. Two amplitude values, amplitudes 1 and 2, respectively represent the magnitudes of rapid and slow increase of oxyhemoglobin. The trends of changes in amplitudes 1 and 2 were different, depending on tumor volume when chemotherapy started. However, both amplitudes 1 and 2 changed earlier than tumor volume, regardless of when chemotherapy was initiated. These results imply that by observing amplitude 1 changes post chemotherapy, we can reduce the time of a respiratory challenge from 10 minutes to less than 2 minutes, to see the chemotherapy response. We believe that by reducing the time of the respiratory challenge, we have taken a step forward to translating our previous study into clinical application.

A Study on the Effect of Critical Factors on Consumer Satisfaction of Online Game Users (온라인게임 이용자들의 만족도에 영향을 미치는 주요 요인에 관한 연구)

  • Kim, Jeong Yeol
    • Journal of the Korea Society of Computer and Information
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    • v.17 no.11
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    • pp.163-171
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    • 2012
  • Many previous researches in the area of online games have been carried out about internet addiction by psychologist and about the development of related technologies by scientists. There are a few studies about the consumer satisfaction from the online business model. The purpose of this study is to examine the causal relationship between critical factors and consumer satisfaction of online game users. This study model used five themes(interactivity, enjoyment, challenge, feedback, design) in order to identify the effect of critical factors on consumer satisfaction. The result of this study identified that interactivity, enjoyment, challenge have a significant effect on consumer satisfaction of online game users. Future areas for studying on the Effect of Critical Factors on Consumer Satisfaction of Online Game Users are continuously discussed.

Whether Alzheimer's Disease is Responsive to a Single Oral Dose of Donepezil and this Response is Predictive Factor in Alzheimer's Disease (일회 Donepezil 투약이 알쯔하이머병 환자에 미치는 영향 및 반응군 예측 인자로서의 가능성)

  • Kwak, Yong-Tae;Yang, Young-Soon;Noh, Yong-Woo
    • Korean Journal of Biological Psychiatry
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    • v.18 no.1
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    • pp.36-45
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    • 2011
  • Objectives : Though a proportion of Alzheimer's disease(AD) patients treated with donepezil have shown positive response on cognition, but the responders' characteristics are still uncertain. This study attempts to identify whether a single oral dose of donepezil(5mg) can change cognition and the relationship between single dose responder items and long-term responder are examined. Methods : Twenty-three AD patients for single donepezil challenge study group and eleven AD patients for controls were participated in the study. Seven days after baseline study for neuropsychological test and EEG, same studies were rechecked after donepezil medication in study group. In donepezil study groups, 12 weeks after donepezil medication, neuropsychological test and EEG were rechecked. Results : After single donepezil challenge, forward digit span, Rey-Osterrieth Complex Figure Test copy, SVLT delayed recall were significantly improved, and beta spectra power in anterior, theta spectra power in posterior field were significantly decreased. According to linear regression analysis, forward digit span after single donepezil challenge was significantly positive correlated with long-term responders. Conclusions : This study suggests that single donepezil medication can significantly change cognitive functions and EEG in AD patients. Among these responsive items, forward digit span was significantly correlated with long-term responder.