• 제목/요약/키워드: low-fertility

검색결과 426건 처리시간 0.025초

「UR단지재생 디자인콤페」에 나타난 하나하타단지(花畑団地) 27호동의 기존스톡 활용수법 연구 (A Study on the 「UR Housing Stock Renewal Design Competition」 for Hanahata No. 27 Housing by the UR Renaissance Agency in Japan)

  • 유순선
    • 한국주거학회논문집
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    • 제24권6호
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    • pp.1-8
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    • 2013
  • The purpose of this study is to perform an analysis on the design methods of the "UR Housing Stock Renewal Design Competition" for Hanahata No.27 Housing by the UR Renaissance Agency in Japan. The analysis is done by looking at the aspects of lifestyle, demographics, environment, and community changes. The results are as follows: 1) Since demographic changes are caused by low fertility, aging populations need the support of locally-based social welfare facilities of which the architectural aspect can be examined. 2) Changes in lifestyle, such as diversity of family composition, flexibility of work, and improvement of leisurely activities require residents to have public spaces and facilities 3) Since environmental changes caused by deteriorated housing need the conversion of awareness about housing estates as a social asset. 4) To revitalize the community, houses, public facilities, and communal outdoor spaces must be connected. The results of this study are expected to serve as clues to the future direction of sustainable conversion in Korea.

기업의 가족친화제도가 근로자의 자녀출산에 미치는 영향 (The Effects of Family-Friendly Corporate Policies on Employees' Childbirths)

  • 유계숙
    • 가정과삶의질연구
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    • 제28권2호
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    • pp.89-96
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    • 2010
  • This study examines how frequently employers offer family-friendly corporate programs and how frequently employees use the programs. This study also seeks to discover whether the implementation and utilization of family-friendly corporate programs results in an increase in employees' childbirths. Data were collected from 377 married full-time employees working in private sector companies located in Seoul and GyeongGi-Do. Frequency analyses of the employees' responses showed moderate rates of implementation of family-friendly corporate programs and much lower rates of employees' utilization. The hierarchical regression analysis revealed that the implementation of family-friendly corporate programs significantly predicted employees' childbirths. However, this was ineffective, having no significant influence on employees' childbirths, when their utilization of the programs was entered into the model. Higher rates of utilization of family-friendly corporate programs predicted more childbirths after employment. This study suggests that the implementation of family-friendly corporate programs per se is not a complete solution to get employees to have more babies. Rather, what matters is the usability of those programs. Finally, the implications of the study results are discussed.

체르노빌 사고의 건강 영향 (Health Effects of the Chernobyl Accident)

  • 정미선;진영우
    • 한국환경보건학회지
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    • 제37권4호
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    • pp.237-249
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    • 2011
  • The Chernobyl accident was a terrible catastrophe for humanity. Scientists are in concurrence about an increase of thyroid cancer incidence among children, but not among adults, because even areas less contaminated by radiation have also reported an increase in the incidence of thyroid cancer. In this case, the rise might be due to a screening effect. There is no convincing evidence that the incidence of leukemia and solid cancer has increased among the exposed populations, but it still remains a controversial issue. Additionally, apparent evidence of decreased fertility and increased hereditary effects have not been observed in the general population. WHO suggested 4,000 people could have died or may die in the future among emergency workers and residents of the most contaminated areas, while Greenpeace insists there will be 93,080 victims around the world. The radiation dose due to Chernobyl was mainly low, so if its health effects are to be found, more long-term and welldesigned research will be needed.

우리나라 가족교육 전문인력의 양성과 관리방안을 위한 기초연구 (A Basic Study on a Management Plan for Family Education Professionals in Korea)

  • 송현애
    • 가정과삶의질연구
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    • 제34권2호
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    • pp.51-64
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    • 2016
  • Family education service for healthy families has increased steadily over the past ten years since the Healthy Family Act was enacted. The Purpose of this study aims to investigate the current state of family education professionals such as family life educators and healthy family specialists, and also suggest a management plan for them. The data used was collected from literature regarding family life educators and healthy family specialists, reports and home pages of Ministry of Gender Equality and Family, Korean Institute for Healthy Family, Healthy Family Support Center in Seoul and Gyeonggi-do, Korean Association of Family Relations, etc. The major suggestions are as follows: 1) empowerment of family education professionals, 2) development of the workplace for family education professionals, 3) development and promotion of various education programs for families, 4) improvement of the capability of family education professionals response to a low fertility-ageing society, 5) collaborative networking between family life educators and healthy family specialists. This study contributes to provide insights on how to train and manage family education professionals.

Effect of Hexavalent Chromium on Egg Laying Capacity, Hatchability of Eggs, Thickness of Egg Shell and Post-Hatching Development of Gallus domesticus

  • Asmatullah, Asmatullah;Asma, A.;Latif, A.;Shakoori, A.R.
    • Asian-Australasian Journal of Animal Sciences
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    • 제12권6호
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    • pp.944-950
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    • 1999
  • Hexavalent chromium (CrVI) was fed to one day old chicks of Gallus domesticus in the form of different concentrations (250 and 500 mg/kg feed) of potassium dichromate mixed with the feed, ad libitum, for 32 weeks. After 20 weeks of feeding, the total body weight was higher in the low dose (260 mg/kg (feed) group and lower in the high dose (500 mg/kg feed) group, as compared with the control chicks. After 32 weeks of feeding, however, the total body weight was significantly decreased in both the treated groups. Egg laying was enhanced. Fertility remained unaffected, whereas hatchability was considerably decreased after CrVI-treatment. The egg shell thickness increased significantly (13%). Cr was deposited in a dose dependent manner in the liver and lungs. Some structural derangements in liver were also noted in treated chicks. The results of this study i.e., rapid ageing, excessive Cr deposition, decreased hatchability and hepatotoxicity indicate toxic effects of CrVI.

침수처리가 수도의 생육 및 임실장해에 미치는 영향 (Effects of Submergence on Growth and Fertility Damages in Rice)

  • 최상진
    • 한국작물학회지
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    • 제28권1호
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    • pp.100-106
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    • 1983
  • 이 연구에서는 벼 생육기 침수에서 피해가 가장 뚜렷이 나타나는 주요생육형질의 품종간 차이와 벼의 생식생장기 침수에서 피해를 크게 좌우하는 임실장해의 정도가 가장 예민하게 나타나는 시점을 찾기 위하여 벼의 포기단위, 이삭단위, 그리고 영화단위로 청수와 탁수로 처리하여 얻어진 결과를 요약하면 다음과 같다. 1. 침수일수의 증가에 따라 엽초의 이상신장량이 많아졌고, 침수후의 초장신장량 및 분벽수는 감소되었으며 출수지연일수가 길어졌다. 2. 일/인형 품종은 일본형 품종에 비하여 엽초의 이상신장량이 적고 침수후 초장 신장의 억제 및 분벽력의 감소가 적었다. 3. 침수에 의한 임실장해가 가장 심한 시기는 청수와 탁수 모두 출수기이었으며 특히 출수전의 수잉기말에서 출수후 개화하기 전이었다.

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Effects of carbonized rice hull and wood vinegar on the improvement of cultivation condition and grain quality of rice

  • Cho, Sun-Sik;Heo, Kyu-Hong;Seo, Pil-Dae;Rico, Cyren;Bequillo, Irvin;Kang, Mi-Young;Lee, Sang-Chul
    • 한국유기농업학회:학술대회논문집
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    • 한국유기농학회 2009년도 하반기 학술대회
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    • pp.317-317
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    • 2009
  • The effects of environment-friendly materials carbonized rice hull and wood vinegar on the improvement of rice quality and soil fertility were investigated. Combined application of carbonized rice hull and chemical fertilizer resulted in lower protein in rice, similar amylose content and generally higher palatability values. Combined application of wood vinegar and chemical fertilizer obtained high protein and amylose contents, and palatability values. However, both carbonized rice hull and wood vinegar did not exhibit weed control. In the carbonized rice hull treatments, soil K was high during heading stage while soil pH during harvest stage was low. In the case of wood vinegar treatments, clear distinction between total K and Ca was observed. K was high during tillering stage while Ca was high until harvest stage.

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계태아를 이용한 농약(folpet)의 기형독성 연구 (Studies on the teratogenicity of folpet in the developing chick embryo)

  • 임윤규;허강준;이영순
    • 대한수의학회지
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    • 제34권2호
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    • pp.375-379
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    • 1994
  • A teratogenicity test of 'folpet' was carried out in the developing chick embryos to investigate and validate the safety of rural environmental hazardous materials. Folpet was administered to chick embryos' yolk sac at a rate of 0.1mg and 0.01mg per SPF eggs at 96 hours of incubation. The morphological changes were examined. Fertility ratio of SPF eggs used was 94.9%. Hatching rate of untreated control group was 74.4% and the group dosed with 100ul of corn oil into the yolk sac was 70.0%. The $LD_{50}$ of folpet was 0.663mg/100ul/egg. After hatching, mean body weight, body length, claw length and beak length of high and low dose administered groups were not significantly different from untreated and vehicle control group. There was no abnormal appearence in all the groups. Therefore it seems that, within the doses applied, folpet dose not induce potential teratogenicity in the developing chick embryos.

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신개간경사지 토양개량과 작물생육에 관한 연구 VI. 토양의 물리화학성 년차간 변화가 옥수수 청예수량에 미치는 영향 (The Soil Improvement and Plant Growth on the Newly-Reclaimed Sloped land VI. Relationship between annual change of soil phsico-chemical properties and yield of silage corn)

  • 허봉구;김무성
    • 한국초지조사료학회지
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    • 제11권1호
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    • pp.22-29
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    • 1991
  • This study was experimented to obtain the basic information on the changeable aspect and improvement of soil fertility in newly-reclaimed sloped land. Silage corn was cultivated under the six different treatments for 4 years. The relation between the amount or ratio of annual changes of soil physico-chemical properties and yield of silage corn were analyzed. Soil bulk density was decreased in 3rd year at topsoil, but that decreased in 4th year at subsoil. Soil organic matter also decreased in 2nd year at topsoil, and decreased continuously at subsoil. Bulk density and hardness of soil depths showed significant negative simple correlation with dry matter yield and cation exchange capacity showed positive. Correlation coefficient of chemical properties with dry matter yield were low. The range of annual changes of moisture percent, hardness and organic matter were wider than the other properties. The significantly different of physical properties were higher than the chemical properties, and those of topsoil were higher than subsoil. According to multiple regression between yield and physico-chemical properties of subsoil, bulk density and cation exchange capacity were in the greatest contribution at the variations, but bulk density was greatest at the ratios.

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R&D Policy of the Korean Government for Aging Society

  • Suh, Jiyoung
    • STI Policy Review
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    • 제4권1호
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    • pp.14-26
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    • 2013
  • The $1^{st}$ National Plan for Aging Society with Low Fertility, which the Korean government announced in 2006, caused the gradual increase of R&D investment in order to prepare for an aging society in Korea. This study explores if the directions and strategies of R&D projects related to aging are suitable to improve the quality of life for elderly people and establish a sustainable aging society by analyzing the features of R&D investment from 2004 to 2010. The results show that most R&D projects conducted by departments focus on the development of assistive devices for the elderly to support everyday lives. The Korean government's R&D policy to prepare for an aging society is based on the narrow interpretation of Quality of Life (QoL) in an aging society that tries to resolve the socioeconomic problems of the elderly; however, the policies have ignored the independence of active elderly individuals and the social integration of the young and elderly generations. The research shows that a paradigm shift is required from a 'Senior' to 'Aging Society' because almost 1/3 of the Korean population is over 65 years old and the expansion of the research embraces from assistive technologies for the elderly to the design of social infrastructure such as transportation, education and work.