• The Plant Pathology Journal
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• 제37권6호
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• pp.662-672
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• 2021

Plant growth-promoting bacteria improve plant growth under abiotic stress conditions. However, their effects on microbial succession in the rhizosphere are poorly understood. In this study, the inoculants of Bacillus mesonae strain H20-5 were administered to tomato plants grown in soils with different salinity levels (EC of 2, 4, and 6 dS/m). The bacterial communities in the bulk and rhizosphere soils were examined 14 days after H20-5 treatment using Illumina MiSeq sequencing of the bacterial 16S rRNA gene. Although the abundance of H20-5 rapidly decreased in the bulk and rhizosphere soils, a shift in the bacterial community was observed following H20-5 treatment. The variation in bacterial communities due to H20-5 treatment was higher in the rhizosphere than in the bulk soils. Additionally, the bacterial species richness and diversity were greater in the H20-5 treated rhizosphere than in the control. The composition and structure of the bacterial communities varied with soil salinity levels, and those in the H20-5 treated rhizosphere soil were clustered. The members of Actinobacteria genera, including Kineosporia, Virgisporangium, Actinoplanes, Gaiella, Blastococcus, and Solirubrobacter, were enriched in the H20-5 treated rhizosphere soils. The microbial co-occurrence network of the bacterial community in the H20-5 treated rhizosphere soils had more modules and keystone taxa compared to the control. These findings revealed that the strain H20-5 induced systemic tolerance in tomato plants and influenced the diversity, composition, structure, and network of bacterial communities. The bacterial community in the H20-5 treated rhizosphere soils also appeared to be relatively stable to soil salinity changes.

• Asian-Australasian Journal of Animal Sciences
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• 제30권11호
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• pp.1660-1666
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• 2017

Objective: Burial is associated with environmental effects such as the contamination of ground or surface water with biological materials generated during the decomposition process. Therefore, bacterial communities in leachates originating from the decomposing bovine carcasses were investigated. Methods: To understand the process of bovine (Hanwoo) carcass decomposition, we simulated burial using a lab-scale reactor with a volume of $5.15m^3$. Leachate samples from 3 carcasses were collected using a peristaltic pump once a month for a period of 5 months, and bacterial communities in samples were identified by pyrosequencing of the 16S rRNA gene. Results: We obtained a total of 110,442 reads from the triplicate samples of various sampling time points (total of 15 samples), and found that the phylum Firmicutes was dominant at most sampling times. Differences in the bacterial communities at the various time points were observed among the triplicate samples. The bacterial communities sampled at 4 months showed the most different compositions. The genera Pseudomonas and Psychrobacter in the phylum Proteobacteria were dominant in all of the samples obtained after 3 months. Bacillaceae, Clostridium, and Clostridiales were found to be predominant after 4 months in the leachate from one carcass, whereas Planococcaceae was found to be a dominant in samples obtained at the first and second months from the other two carcasses. The results showed that potentially pathogenic microbes such as Clostridium derived from bovine leachate could dominate the soil environment of a burial site. Conclusion: Our results indicated that the composition of bacterial communities in leachates of a decomposing bovine shifted continuously during the experimental period, with significant changes detected after 4 months of burial.

• Journal of Chest Surgery
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• 제30권3호
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• pp.315-321
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• 1997

저자들은 1994년 1월부터 1995년 12월까지 비관통성 늑골골절로 인하여 도시지역에 위치한 조선대학 교 부속병원 흉부외과에 입원한 326명의 환자와,농촌지역에 위치한 전남 화순중앙병원 흉부외과에서 입원 치료 받았던 환자 102명에 대하여 임상적 차이를 서로 비교하였다. 가장 흔한 연령층은 도시지역 30∼50대, 농촌지 역 40∼60대 였고 남녀비는 전체지 역에서 남자에서 3배이상의 많은 빈도를 보였다. 비 관통성 늑골골절의 가장 흔한 원인은 양 그룹에서 교통사고가 가장 많았으며 두번째로 많은 원인은 도 시지 역은 추락사고로 355례중 66례(20.2%), 농촌지 역은 농기구 사고로 102례중 18례(17.6%)였다. 손상 부위별로는 도 · 농간. 유의한 차이없이 좌측에서 많았고 가장 흔한 늑골골절은 3번에서 6번까지의 늑골 이었다. 수상후 첫 1시간내에 내원한 경우는 도시지역이 16.0%, 농촌지역이 23.5%로 차이를 보였다. 치 료는 보존적 치료, 흉강천자술, 폐쇄성 흉관 삽관술, 개흉술 등으로 하였는데, 도시지역이 326례중 134 례(41.1%), 농촌지역of 102례중 81례(79.4%)에서 보존적 요법을 시 행하였고, 개흉술은 도시지 역이 37례 (11.3%),농촌지역이 3례 2.9%)에서 시행하여 도시지역이 농촌지역에 비하여 더 적극적인 치료방법을 선택하는것으로 나타났다. 전체 사망률은 도시지역이 4.29%(14례), 농촌지역이 1.96%(2례)였고 사망원 인은 출혈성 쇽, 뇌부종 등이었다.

• 한국지역사회생활과학회지
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• 제18권3호
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• pp.455-467
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• 2007

Recently, there has been a gradual growth of retired in-migrants in high-amenity, rural areas in Korea. However, little has known about that the retirement migration is a blessing or a blight for a local economy in Korea. Therefore, in this study, we intend to explore the relationship between retirement migration and economic development of rural communities in Korea. For this purpose, we used the 1995 and 2000 census data and annual regional statistics for 138 counties in Korea. Based on the previous empirical studies, economic development was measured by 3 indicators such as GRDP (Gross Regional Domestic Product), job creation in the wholesale and retail sector, and the increase of local tax. Also, cross-tab, scatter plot, and correlation were analyzed using the SPSS Windows Program. The finding are as follows: First, from 1995 to 2000, nearly 11 percent of rural counties showed 10 percent and over increase of in-migration rate among retirees. Second, correlation statistics showed a close relationship between retirement in-migrant flows and economic resurgence. In particular, retirement in-migration rates were significantly tied to the job creation of the wholesale and retail sector (r=.19, p<.05) as well as car ownership rate (r=.58, p<.001) resulting in the increase of local tax. However, there was non-significantly positive correlation between retirement in-migrant flows and GRDP change (r=.13). Knowledge of these relationships will be important to policy-makers and for understanding the role that retirement in-migration play in stimulating economic growth of rural communities in Korea.

• 농촌지도와개발
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• 제25권1호
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• pp.15-30
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• 2018

This study attempted to classify the residents of rural area into some groups according to the level of their community satisfaction by decision tree model. The variable that has the greatest influence on grouping rural residents according to community satisfaction is income. However, it appears that the variable of participating in the community activities can weaken their influences. The second most satisfying group is the group of people who are lower-income and active in community activities. On the other hand, the group of people who are high-income and inactive in community activities are included to unsatisfying groups. These findings suggest that community participation can be a major factor in enhancing the quality of life of residents in the rural communities. What is noteworthy is that marital status is used as a major variable to classify the rural residents into some groups according to the level of community satisfaction. This suggests that the issue of marriage is still a major problem in rural communities.

• 한국농촌간호학회지
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• 제2권1호
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• pp.33-42
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• 2007

Purpose: This study was done to determine the extent of Clonorchis sinensis infections as well as other parasitic infections and to determine the growth rate. Method: Analyzed test results were from 1,050 bowel samples taken at 3 public health subcenters located in Muju, North Jeolla Province during February and March 2007. Result: The results are summarized as follows; The egg positive rate by stool examination was 4.3%. Ascaris lumbricoides, Enterobius vermicularis, Clonorchis sinensis, Trichuris trichiura, Metagonimus, Paragonimus were detected. No one was infected with multiple parasites. Infection rate for Clonorchis sinensis was 3.5%. Statistical correlation to Clonorchis sinensis infection rate was as follows; Gender (p=0.001), Age (p=0.005), Proximity to a river (p<0.000), Drinking (p<0.000), Smoking (p=0.009), Cooking of freshwater fish (p<0.000), Confidence in subjective health status (p=0.032), Family history of infection (p=0.005), No significant correlation was found between Clonorchis sinensis infection rate and duration of stay (p=0.809) in the agricultural communities or between Clonorchis sinensis infection and knowledge of Clonorchis sinensis (p=0.113). Conclusion: The results of this survey show that there is a need to develop a program to test the condition of Clonorchis Sinensis infection and its growth rate in residents of rural communities.

• 한국농촌간호학회지
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• 제11권1호
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• pp.3-14
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• 2016

Purpose: This study aimed to evaluate a urinary incontinence self-management program for middle-aged women in Korean rural communities. Methods: A one-group pretest and posttest design was used to examine changes in severity, knowledge, and attitudes following the intervention. Fifty-six women completed weekly 90-min group sessions for seven weeks. Descriptive statistics and paired t-tests were used to analyze data. Results: The total of International Consultation on Incontinence Questionnaire scores was significantly decreased after the intervention (pre-test: $4.55{\pm}3.88$, post-test: $3.21{\pm}3.00$, p<.001). Significant improvement was also noted on the mean knowledge scores (pre-est: $16.66{\pm}6.24$, post-test: $21.43{\pm}5.15,$ p<.001). Conclusions: This study suggests that the UI self-management program is useful in improving the symptom of UI for middle-aged women living in communities.

• 한국농공학회:학술대회논문집
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• 한국농공학회 2002년도 학술발표회 발표논문집
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• pp.113-116
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• 2002

The rural population has been continuously decreased since the standards of living in rural communities is relatively lower than in urban. In other words, rural area has become less attractive for settlement. The concept of 'rural amenity' was introduced, to increase interests in the development of rural area. But, there has not been proper theories and methods to evaluate the amenity. In this study, rural amenity was classified and the elements of rural amenity was evaluated using statistical methods. The results of this study could be useful to assess the effects of the polices on improving rural amenities.

• 한국농촌건축학회논문집
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• 제9권3호
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• pp.83-92
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• 2007

The importance of residents' participation has become more prominent to promote better living condition and quality of life in rural communities due to the skeptical views on the outcomes of the rural community supporting projects led by organizations and institutions. This study analyzes White Dandelion Eco-Village in Hoebuk Myeon, Boeun Kun, Chungbuk where community development is being done by its residents. By examining the formation background and the history of the village, and various participation forms and methods of the residents, I am to derive the ideal rural community development project led by the villagers themselves. To achieve successful supporting projects for rural communities by many different organizations and methods, it is necessary to have followings; residents' affectionate attentions for the community as well as good ideas and intentions, excellent leaders who gather all the efforts and transform them into good plans, well made strategies and continuous endeavor, and the diversion of thoughts of the supporting project experts and the organizations.

• KIEAE Journal
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• 제16권2호
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• pp.67-77
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• 2016

Purpose: The purpose of this study is to suggest a implication and improvement which can provide direction when proposing prospective housing policies which comply the peculiar and changing needs of rural communities. Method: Accordingly this study reviewed for rural housing regulations and policies that appear in the process of developing Japanese Excellent Rural Housing. According to the case study, municipal organizations have implemented independent housing programs base on the Promotion of Rural Residence Act for returning farmers. Result: They provide service to provide returning farmers comprehensive counseling and information about employment, child-rearing and education, housing, and etc. The service program is run by a cooperative way. In addition the Japanese Excellent Rural Housing projects nowadays focus on promoting voluntary establishments of local communities by providing comprehensive plans for local community formation and interaction for harmony between existing residents and returning farmers. In the case of Korea, targeting existing residents and returning farmers for settlement environment in rural areas need jobs, child care, education, and comprehensive housing counseling. In addition, this suggests the need for linkages between the various community programs and residents.