• Asian Journal of Atmospheric Environment
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• v.5 no.3
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• pp.164-171
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• 2011

This work focuses on the analysis of bioaerosols in the atmosphere at higher altitudes over Noto Peninsula, Japan. We carried out direct sampling via aircraft, separated cultures, and identified present isolates. Atmospheric bioaerosols at higher altitudes were collected using a Cessna 404 aircraft for an hour at an altitude of 3,500 m over the Noto Peninsula. The aircraft-based direct sampling system was devised to improve upon the system of balloon-based sampling. In order to examine pre-existing microorganism contamination on the surface of the aircraft body, bioaerosol sampling was carried out just before takeoff using the same method as atmospheric sampling. Identification was carried out by a homology search for 16S or 18S rDNA isolate sequences in DNA databases (GenBank). Isolate sampling just before takeoff revealed Stretpomyces sp., Micrococcus sp., and Cladosporium sp. One additional strain, Bacillus sp., was isolated from the sample after bioaerosol collection at high altitude. As the microorganism contamination on the aircraft body before takeoff differed from that while in the air, the presence of additional, higher atmosphere-based microorganisms was confirmed. It was found that Bacillus sp. was floating at an altitude of 3,500 m over Noto Peninsula.

• Ocean and Polar Research
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• v.32 no.1
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• pp.85-95
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• 2010

There is increasing consensus that global warming is seriously affecting the Arctic region. Sea Ice decreases and sea level rise have led to environmental change in Arctic Ecosystems, while also making the Arctic sea route more accessible to humans. There are complicated international governance dynamics in play, in addition to commercial and scientific interests in the Arctic region. This provides a unique opportunity for Korea to lead the future direction of Arctic policy in response to the global issues such as climate change and economic or scientific interests. Korea acquired Ad-hoc Observer status of the Arctic Council(AC) in 2008, which is the only pan-Arctic intergovernmental organization. It consists of six working groups: ACAP, AMAP, CAFF, PAME, EPPR, SDWG that implement research, survey, and monitoring. AC's Observer country has the opportunity to participate in a diverse range of activities such technical and expertise support, research and monitoring, financial support and conference organization. In order for Korea to expand its activities in the Arctic region, we suggest the following approach: First, Korea should become more actively engaged with the Arctic Council and its activities; Second, Korea should construct organized collaborative networks of national experts to respond to Arctic issues; Third, Korea should develop collaborations with Arctic states; Finally, Korea should intensify its research on international relations and international laws related to the Arctic region.

• Journal of the Korean Society of Safety
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• v.31 no.2
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• pp.104-111
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• 2016

Our nation has experienced remarkable growth over the half a century. Nonetheless, there is still much room for improvement in the area of Environment, Health and Safety (EHS). In particular, frequency and severity of industrial accidents did not considerably improve compared to the economic and social progress we made. The main objective of this research is to analyze what plans and actions are required for companies to promote industrial safety by 1) fostering functional competencies of EHS staffs and 2) effectively and proactively responding to rapidly changing EHS environment. For this research, EHS staffs from five large companies in Korea were surveyed. Most respondents indicated that one of key expertise required by EHS staffs is capabilities to effectively deal with changes to various domestic and international EHS-related laws and regulations. Furthermore, a predominant number of respondents commented that it is imperative for EHS staffs to have a broad knowledge of business management. As for internal issues that EHS staffs encounter within their organizations, many pointed out that their EHS vision is not sufficiently shared throughout the organization, and that the rules of leadership are critical in solving this issue. On the other hand, the survey respondents also raised an issue of limited EHS-related investments due to slow economy. As a solution, they proposed ways to align EHS organization's performance with the company's performance. Based on this survey, issues and solutions for EHS organizations were identified. Results of this research can benefit companies that plan to newly establish or further expand EHS organization.

• Journal of Forest and Environmental Science
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• v.33 no.3
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• pp.197-201
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• 2017

Populus. caspica L. is an Iranian indigenous poplar species which naturally distributed in the northern part of country. Unfortunately, overuse has removed many of the stems of better form, so that natural stands now usually appear small and crook. Therefore genetic variation for selection of new superior clone of this species is needed. Conventional hybridization system is currently used to induce genetic variation in poplar species but incompatibility barriers have been observed between them. In vitro ovule embryo culture was used to overcome incompatibility obstacle for interspecific hybridization between Populus caspica L. with Populus deltoids L.62/75. Female flowers of Populus caspica L. have artificially been pollinated with pollen grain of P. deltoides 62/75 in one direction using twig and pot crossing system. Ovaries at different ages (7, 14 and 21 days after pollination) were disinfected through 70% ethanol for 1 minute, 5% of sodium-hypochlorite solution for fifteen min followed by three time rising with sterile distil-water. Isolated ovaries were then transferred to MS hormone free medium containing 30 and 60 g/L sucrose for embryo development and germination. Collected data have been analyzed by two factorial experimental designs. The results indicated that there were significant differences between age of embryos for development and germination at ${\alpha}=0.01%$. Highest embryo germination (45%) was observed from 21 days old ovaries. No significant differences were observed between MS culture media containing 30 and 60 g/L for percentages of ovary-embryo germination and number of germinated embryo per ovary at ${\alpha}=0.05%$. Fourteen percentage of embryo germination obtained in MS medium supplemented with 60 g/L sucrose, while only 35% of isolated ovaries were able to germinate in MS containing 30 g/L sucrose. Induced plantlets in 4 cm height were transferred into pots containing soilless (1:1:1 peat, per lit and vermiculite) medium for acclimatization. After successful acclimatization, plants were delivered to nursery.

• Health Policy and Management
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• v.9 no.4
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• pp.15-40
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• 1999

To assess the university health service organization(UHSO) and its school health programs a questionnaire survey for all of 186 four-year colleges in Korea was conducted from December 1. 1998 to March 31. 1999. The response rate was 91.9 percent(171 universities). The UHSO was established in 116 universities(67.8%L The most common name of UHSO. used in 61 universities(52.6%). was school health center. Only 45(38.8%) of the 116 universities surveyed had a committee to support and run the UHSO. The percentage of universities that had committee was higher in national universities and those with a large number of students. The average number of staff working in the UHSO was 3.5; 4.6 in national universities; and 7.1 in universities with more than 15.000 students. There were 43 universities(37.1%) which had a part-time physician and 104 universities (89. 7%) had full-time nurses. Only 4 universities(3.4%) had a independent facility for the UHSO while most of UHSO were housed in other building. The UHSO had an independent budget in 86 universities(74.1%). The average budget per university was 46.890.000 won: private universities had more budget with 59.170.000 won on average than national universities with 36.990.000 won. The average budget allocated per student was 4.362 won. A regular physical examination was performed in 72 universities(62.1%). The percentage of university that performed regular physical examination was higher in private universities than in national universities. Health counseling was performed in 113 universities(97.4%) and vaccinations in 87 universities(75.0%). Medical care services were performed in 87 universities(75.0%). and the private universities and those with over 10.000 students provided the student with more services. Environmental sanitation was executed in 73 universities(62.9%) and health education was conducted in 68 universities(58.6%)' The school health management activities were promoted in 104 universities(89.7%) out of 116 universities with UHSO. Only 12 universities(10.3%) published reports on the achievements and performance of the UHSO. Only 29 universities(25.0%) had a continuing education for employees of the UHSO.

• Animal Bioscience
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• v.35 no.7
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• pp.1100-1108
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• 2022

Objective: The objective of this study was to evaluate the effect of waste cooking oil (WCO) addition on ammonia (NH₃) emissions during the composting of dairy cattle manure under two aeration conditions. Methods: The composting tests were conducted using the laboratory-scale composting apparatuses (14 L of inner volume). Three composting treatments (Control, WCO1.5, and WCO3, with WCO added at 0 wt%, 1.5 wt%, and 3 wt% of manure, respectively) were performed in two composting tests: aeration rate during composting was changed from 0.55 to 0.45 L/min in Test 1, and fixed at 0.3 L/min in Test 2, respectively. The NH₃ emitted and nitrogen losses during the composting were analyzed, and the effect of the addition of WCO on NH₃ emissions were evaluated. Results: Both tests indicated that the composting mixture temperature increased while the weight and water content decreased with increasing WCO content of the composting mixtures. On the other hand, the NH₃ emissions and nitrogen loss trends observed during composting in Tests 1 and 2 were different from each other. In Test 1, NH₃ emissions and nitrogen losses during composting increased with increasing WCO contents of the composting samples. Conversely, in Test 2, they decreased as the WCO contents of the samples increased. Conclusion: The WCO addition showed different effect on NH₃ emissions during composting under two aeration conditions: the increase in WCO addition ratio increased the emissions under the higher aeration rate in Test 1, and it decreased the emissions under the lower aeration rate in Test 2. To obtain reduction of NH₃ emissions by adding WCO with the addition ratio ≤3 wt% of the manure, aeration should be considered.

• Journal of Advanced Navigation Technology
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• v.26 no.5
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• pp.249-260
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• 2022

Student pilots receiving flight education are inexperienced in piloting and situation judgment skills and are greatly affected by various factors such as psychological, physical, and environmental factors. In particular, one of the most influential factors in the flight education of student pilots is the weather conditions. Unlike large aircraft used in the air transportation business, small aircraft used for flight education have a great impact on education, such as flight restrictions depending on weather conditions, psychological pressure in severe weather, and deterioration of student skills. Therefore, in this study, the meteorological characteristics of meteorological factors that have a great influence on small aircraft were analyzed. As a result of the analysis, an efficient and safe training operation method was suggested to a professional pilot aviation training organization through the adjustment of the training period for the season, the increase in aircraft operation rate, and a safe solo flight plan considering the weather.

• Journal of Information Technology Services
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• v.23 no.3
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• pp.17-37
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• 2024

This study explores the tendency of corporations and organizations to continue with their current processes despite having incentives for better Information Technology (IT) innovation or transition. In this context, the study argues that organizations may struggle with 'outsourcing inertia,' a well-known concept referring to an organization's deficient adaptability to environmental changes, particularly defined here as the organization's slow adaptation to changes in outsourcing levels. To verify this, the study analyzes how key variables identified from existing IT Outsourcing (ITO) decision-making research and recent studies on cloud computing transitions actually affect a firm's transition intentions. In the process, this study investigates the moderating effect of a firm's outsourcing inertia, utilizing the Technology-Organization-Environment (TOE) framework and the Push-Pull-Mooring (PPM) model based on migration theory to propose a research model. The study aims to contribute to finding strategic approaches necessary for facilitating IT innovation and transition by understanding the impact of outsourcing inertia on the decision-making process related to IT outsourcing. It is important to note that the majority of domestic conglomerates own IT subsidiaries, which significantly influence the process of transitioning to cloud computing. Nevertheless, research on the impact of IT subsidiaries on cloud computing transition is relatively scarce. Based on this background, this study proposes that IT subsidiaries within domestic conglomerates can act as a significant mooring factor of organizational inertia in the decision-making process for adopting cloud computing. Through this, the study seeks to provide strategic insights for overcoming organizational inertia faced by IT subsidiaries during the cloud computing transition process.

• Korea Journal of Hospital Management
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• v.14 no.4
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• pp.103-123
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• 2009

The purpose of this study is to investigate antecedents and consequences of perceived justice of performance appraisals, which is classified as distributive and procedural justice, in hospital organization. The results of this study are summarized as follows. First, for distributive justice of performance appraisals, the influential factors are the pertinence of performance appraisal method, the opportunity of self-reporting, the availability of performance appraisal, and the feedback of performance appraisal. For the procedural justice of performance appraisals, they are the leadership style of performance appraisers, the ratee-rater exchange relationship, the pertinence of performance appraisal method, the opportunity of self-reporting, and the feedback of performance appraisal. Second, the perceived justice weakly affects outcome variables, organizational commitment and job satisfaction. By these results, the performance appraisal system needs to be changed in order to enhance distributive justice through the improvement of suitable methods of the performance appraisal, the opportunity of self-reporting, the availability of performance appraisal, and the feedback of performance appraisals. If it is difficult to increase the level of distributive justice due to the environmental restrictions in hospitals, the way to enhance the procedural justice more than the distributive one should be considered.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 1998.10a
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• pp.613-622
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• 1998

This study investigates the factors that affect the adoption of object orientation . One major research question is addressed : What are the factors that significantly influeence the adoption of object orientation ? This study especially explores the impact of independent variables on the level of actual usage of object orientation. The independent variables are classified into four categories as follow ; (1) Individual factors : amount of experience in using the structures methods and level of openness toward new technologies ; (2) Managerical factors : perceived management support and training : (3) Organizatinal factors : number of IS professionals in the working group and that in organization ; and (4) Environmental factors ; accessibility to technology champions and software hardware environment supporting object orientation. A Questionnaire measuring the above variables was utilized to investigate the effect of these variables on the dependent variable, the actual usage of object orientation. The structured questionnaire was administered to Data Processing Management Association (DPMA) professionals in U. S. The results of this study revealed several important findings with most results being consistent with expectations based on related theory. The personal openness toward new technologies, perceived management support, training, and hardware/software environment were highly related to the usage of object orientation. This study suggested an empiriclal basis for understanding the early adoption of object orientation in organization.