A Study on Formation Process of the Blue Worker's Learning Networks

본 연구는 일터에서의 맥락적인 사회적 상호작용에 의해 형성되는 학습활동을 이해하고자 생산직 근로자의 일터에서 이루어지는 학습네트워크를 분석하였다. 이를 위해 생산직 근무 3년 이상의 경력자로서 현재 생산라인에 투입되어 근무하는 근로자를 연구대상으로 선정하여, 심층면담에 의한 근거이론을 주된 연구방법으로 활용하였다. 연구결과 개방코딩과정을 거쳐 면담자료를 범주화한 62개의 개념과 26개의 하위 범주와 19개의 범주를 도출하였고 근거이론의 패러다임에 의거하여 모형을 구성하였다. 생산직 근로자의 학습네트워크의 인과적 조건은 ‘일터에서의 문제 상황 직면’ 이었으며, 형성배경으로 살펴본 학습네트워크유형은 중심현상으로는 문제해결 학습네트워크, 관계적 학습네트워크, 업무중심 학습네트워크, 제도화된 학습네트워크, 전문가지원 학습네트워크로 나누어질 수 있었다. 네트워킹은 일터를 기반으로 형성되는 학습양식의 중심특성이며, 생산현장에서의 학습네트워크는 지식과 정보 뿐만 아니라 일터에서의 경험을 연결하고 교류한다. 또한 조직에서 학습이 발생되는 원천은 문제 상황과 그에 따른 해결노력으로서, 개인·조직의 목적이나 실질적 성과에 부합될 때 가치 있는 것으로 평가되 었다.This study was analyzed the learning networks of blue workers, whose workplace are social interaction context. This aimed attempts producing job service career above three years experienced person that uses grounded theory as a research method. After researching, we finally drew out 62 concepts, 19 categories and sub-categories of grounded theory. Causal conditions for the blue work’s learning network says issue situation. The producing job blue workers learning network behaviors can be formation ground into the following five patterns ; problem-oriented learning networks, relationship-oriented learning networks, task-oriented learning networks, official-oriented learning networks, specialist support-oriented learning networks. Networking is a characteristic of workplace and special trait of their learning mode. Their learning is achieved through exchanges of knowledge and information and through continual communication. Workplace learning is developed through learning networks that connect and transmit knowledge, information, learning experiences. And then workplace learning is when with problematic situation as the solution plan against it corresponding in result of organization, there was a value and it was evaluated all

Needs Analysis under Middle & Old Aged Blue Workers' Pre-retirement Educational According to Enterprises size and Pre-retirement Educational Experiences

Ⅰ. 서론 Ⅱ. 선행연구 Ⅲ. 연구방법 Ⅳ. 연구결과 1. 퇴직준비교육의 필요성에 대한 인식 2. 기업규모에 따른 퇴직준비교육요구 3. 퇴직준비교육참가경험에 따른 퇴직준비교육요구 Ⅴ. 결론 참고문헌 abstractThis study analyzed needs of pre-retirement educational program for middle and old aged blue workers in Korea. For the purpose of the study, questionnaire was modified based on montana pre-retirement survey developed by Brady. The questionnaire was disseminated 490 middle and old aged blue workers in Seoul and 4 local areas and 353 was responded. To compare their needs of pre-retirement educational programs, 3 corporations and 3 small and midium sized enterprises were selected as a sample. The results of the analysis were as follows. Blue workers who were employed large or middle and small sized enterprises recognized the necessity of pre-retirement education. Respondents who had experience to participate pre-retirement educational program before needed a program for the purpose of re-employment or job displacement. And the respondents who participate pre-retirement educational programs before recognize more positively about retirement than who didn't

Tributyltin Compound in Sediments and Tissues of Oysters and Rock Shell in Gwangyang Bay, Korea

Tributyltin (TBT) and its degradation products, dibutyltin (DBT) andmonobutyltin (MBT) were quantitatively determined in surface sediments and twomolluscan species, Pacific oyster ( Crassostrea gigas ) and rock shell ( Thais clavigera ),from Gwangyang Bay, Korea. Butyltin compounds were detectable in almost all sedi-ment and biota samples. Tributyltin concentrations in surface sediment ranged 2~ 33ng g-1, which is at a lower end of TBT concentrations in industrialized bays in Korea.However, TBT levels in sediments were related to boating activities around the bay. Inbiota samples, TBT concentrations were in the range of 178 ~ 2,458 ng g-1 for oyster and47~ 236 ng g-1 for rock shell. Relatively high TBT concentrations in biota were foundnear wharves for fisherboats and harbor areas. About 90 ~ 100% of the female T. clav-igera displayed imposex, and relative penis length index of the imposexed -female wasin the range of 20.9 ~ 107.9%. Furthermore, TBT body residue had a significant positiverelationship with degree of imposex in T. clavigera . Overall, TBT concentrations inGwanyang Bay were much lower than other major bays in Korea.33Nkciothe

Nationwide monitoring of organotins using bivalves in the marine environment of Korea (1995-1998 and 2001 survey)

Organotin compounds are one of the most widely used organometallic chemicals. They are actively applied to antifouling paints as biocidal additives to prevent adherence of sedentary organisms to ship hull and other structural surfaces immersed in water. Since their deleterious effects on non-target organisms were revealed in the early 1980’s, many industrialized countries have placed regulations of ban on use of organotin compounds, especially tributyltin (TBT) and triphenyltin (TPT) compounds, in ships. South Korea is one of the major ship building industries in the world, and boating activities are relatively high as a peninsula. Korean government has banned the use of both TBT and TPT based antifouling paint on ships less than 400 tonnage from 2000. Bivalve organisms such as mussels and oysters have been used as monitoring organisms due to their high accumulation of organotins, sessile characteristics and wide distribution. Tributyltin, triphenyltin and their degradation products in mussel or oysters were quantitatively determined around the coast of Korea during the 1995 – 1998 (67 sites) and 2001 (40 sites) surveys, respectively. Concentrations of TBT and TPT in bivalves during 1995 – 1998 ranged from 16 to 2800 ng/g and not detected to 1820 ng/g, respectively. Relatively high butyltin and phenyltin concentrations were found near harbours and shipyards. In 2001, TBT concentrations (32 – 2460 ng/g) were in similar range, while TPT levels decreased steeply with the range of not detected - 134 ng/g. In addition, frequency of phenyltin detections decreased from 62% in the 1995 – 1998 survey down to 18% in the 2001 survey. Cumulative probability distribution curves of TBT concentrations in both the surveys appeared very similar. However, the median TBT concentration in 2001 (281 ng/g) was slightly less than that of in 1995 – 1998 (399 ng/g). These TBT body residues are still high enough to cause adverse effects on marine orga1

Annual accumulation cycle of butyltin compounds in oysters according to egg production

Organotin compounds are one of the most widely used organometallic chemicals. They are actively applied to antifouling paints as biocidal additives to prevent adherence of sedentary organisms to ship hull and other structural surfaces immersed in water. Since their deleterious effects on non-target organisms were revealed in the early 1980&apos;s, many industrialized countries have placed regulations of ban on use of organotin compounds, especially tributyltin (TBT) compound, in ships. South Korea is one of the major ship building industries in the world, and boating activities are relatively high as a peninsula. Korean government has banned the use of TBT based antifouling paint on ships less than 400 tonnage from 2000 and whole ships from 2003. Bivalve organisms such as oysters have been used as monitoring organisms due to their high accumulation of butyltins, sessile characteristics and wide distribution. However, annual accumulation pattern of TBT and its degradation products were not revealed yet. Seasonal fluctuation of butyltin compounds in oysters is crucial to monitor butyltin residue for regional and annual comparison. In this study, TBT and its degradation products, dibutyltin (DBT) and monobutyltin (MBT) were quantitatively determined in oysters from aquaculture farm in Goseong from Jan. to Dec. in 2000. TBT, DBT and MBT concentrations in oysters ranged 90 - 434 ng/g, 70 - 194 ng/g, and 47 - 214 ng/g. Butyltins residues in the oysters showed seasonal fluctuation, which is closely related to spring and autumn spawning events. After both spring and autumn spawning, all three butyltin concentrations decreased and then accumulated again in winter season. Egg weight was quantified in an individual female oyster using enzyme-linked immunosorbent assay. Tributyltin body burden in individual female oyster demonstrated a significant positive correlation (r2 = 0.87, p < 0.001) with its egg weight.2

Status and Trend of Tributyltin Contamination in Sediments from a Shipyard and its vicinity

Fisherman’s association sued a large shipbuilding industry in southern Korea for its possible adverse effects on surrounding environments and fisheries. One of suspicious pollutants to cause harmful effects on fisheries in this case is a highly toxic tributyltin (TBT) compound used in antifouling paint during shipbuilding process. Thus, an extensive survey, including multimedia monitoring (sea water, effluents, sediments, biota and ship hulls), has been conducted to identify TBT input sources and pathways. Three sediment cores were analyzed for understanding of historical trend of TBT input and its relationship with past shipbuilding activity. Mussels from pristine area were transplanted to seven sites in the study area for up to 120 days to evaluate input sources and accumulation pattern of TBT. In addition, sediment toxicity was assessed using Microtox and amphipod for toxic effects of sediment bound TBT on organisms. Exceptionally elevated TBT and its degradation products, dibutyltin and monobutyltin, concentrations were found in all the matrices analyzed near shipyard. However, their concentrations steeply decreased towards off coast. Vertical profile of TBT concentrations in age dated sediment cores revealed that increase of TBT is corresponding to gross tons of ships built in the shipyard during the past two decades, but apparent decreasing trend from the late 1990s. Two sediment toxicity tests demonstrated extreme toxicity in the site very close to a shipyard effluent outlet, and an obvious decreasing trend towards off coast. These results indicate that the shipyard plays an important role to input toxic TBT compound to receiving waters and environments. The extent of environmental impact and areas of concern are tentatively estimated based on this study.1