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Skewed Inheritance of EST-SSR Alleles in Reciprocal Crosses of Cut Roses (절화장미 품종간 정역교배에 있어서 EST-SSR 마커의 유전)

  • Kim, Jin-Ki;Ahn, Dong-Chun;Oh, Hye-Jeong;Kim, Kwang-Hwan;Choi, Young-Mi;Oh, Seung-Yong;Kang, Nam-Jun;Jeong, Byoung-Ryong;Kim, Zhoo-Hyeon;Park, Young-Hoon
    • Horticultural Science & Technology
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    • v.28 no.4
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    • pp.618-626
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    • 2010
  • Matroclinal inheritance of morphological characters in interspecific crosses of Rosa spp. can be influenced by cytoplasmic inheritance, apomixis, and asynaptic heterogamy. In asynaptic heterogamy, which is often observed from interspecific crosses of Rosa sect. $Caninae$, the polyploidy of the seed parent (especially for 5x=35) is recovered in the progeny through the pollens that include only a set of bivalents (x=7) and egg cells that contain a set of bivalents (x=7) and other univalents (3x=21). In this study, we investigated the causes of matroclinal offsprings observed from reciprocal crosses of tetraploid cut rose cultivars ($Rosa$ $hybrida$ L.) by analyzing EST-SSR marker distribution in the progeny populations. From EST-SSR marker analysis of eight offsprings per six reciprocal crosses among six cultivars, cases of cytoplasmic inheritance were not observed. Apomixis was also very rare as compared to the reports on interspecific crosses of sect. $Caninae$; only one apomitic plant was identified from the cross 'Redtem' ${\times}$ 'Red Sandra'. Although a clear-cut pattern of asynaptic heterogamy was not found, cultivar-specific marker transmission skewed to seed parent in four cultivars implied that genetic inheritance can be highly influenced by the seed parent depending on crosses among cut rose cultivars; especially, 10 out of 11 alleles specific to 'Yellow King' distributed in progenies at higher ratios when the cultivars were crossed as the seed parent.

Changing Face of the British Social Housing Policy - Under the Conservative Government, 1979-1997 (영국 사회주택정책의 변화 연구 - 보수당 집권기간(1979-1997)을 중심으로 -)

  • Lee, Young-Hwan
    • Korean Journal of Social Welfare
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    • v.35
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    • pp.289-317
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    • 1998
  • This study aims to review and evaluate the changes of the British social housing policy under the Conservative government(1979-1997), and to get some implications for the Korean case. The Conservatives tried to diminish the role of state in the realm of social welfare :in general, and to retreat the social housing policy in particular as a reaction to the' welfare state crisis' started from the early 1970s. In the realm of housing policy, privatisation and marketisation including the massive sale of council houses were driven enthusiastically. Public expenditure cut and redirection of the housing subsidy scheme were also implemented according to the changed policy orientation. The clear visible results of the policy changes can be seen as follows; radical changes of the housing tenure distribution, changing role of local authorities, and the worsening housing problems- housing shortages, residualisation, affordability problem, deepening dependency and the negative distribution of housing subsidy etc. Furthermore the goal of public expenditure cut, in fact, was not accomplished successfully. The results of this study support the argument that the Neo-liberalistic approach to the 'welfare state crisis' have resulted in reconstruction and redirection rather than total abolition of the role of state in welfare provision. This conclusion could provide important implications to Korean case, especially concerning the role of state in the social housing policy.

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Transparent Near-infrared Absorbing Dyes and Applications (투명 근적외선 흡수 염료 및 응용 분야)

  • Hyocheol Jung;Ji-Eun Jeong;Sang-Ho Lee;Jin Chul Kim;Young Il Park
    • Applied Chemistry for Engineering
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    • v.34 no.3
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    • pp.207-212
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    • 2023
  • Near-infrared (NIR) absorbing dyes have been applied to various applications such as optical filters, biotechnology, energy storage and conversion, coating additive, and traditionally information-storage materials. Because image sensors used in cellphones and digital cameras have sensitivity in the NIR region, the NIR cut-off filter is essential to achieving more clear images. As energy storage and conversion have been important, diverse NIR absorbing materials have been developed to extend the absorption region to the NIR region, and NIR absorbing materials-based research has proceeded to improve device performances. Adding NIR-absorbing dye with a photo-thermal effect to a self-healable coating system has been attractive for future mobility technology, and more effective self-healing properties have been reported. In this report, the chemical structures of representative NIR-absorbing dyes and state of the art research based on NIR-absorbing dyes are introduced.

The A Literary Investigation on Mandu (Dumpling);Types and Cooking Methods of Mandu (Dumpling) During the Joseon Era (1400's${\sim}$1900's) (만두의 조리방법에 대한 문헌적 고찰;조선시대 만두의 종류와 조리방법에 대한 문헌적 고찰(1400년대${\sim}$1900년대까지))

  • Bok, Hye-Ja
    • Journal of the Korean Society of Food Culture
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    • v.23 no.2
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    • pp.273-292
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    • 2008
  • Among all the ingredients usedin mandu, the following types were used:, 13 types of grains were used (12.38%), 30 types of vegetables, fruits, bulbs,and nuts were used (28.57%), 32 types of marine products, birds, meats, fishes, and shellfishes were used (30.48%), 10 types of functional ingredients were used (9.52%) and. For spices, 20 types of spices were used (19.05%). 2. Cooking Methods offor Mandu. The mMandu eaten at in the early Joseon era had was primarily made ofusedbuckwheat that contained boiled tofu or egg uiijuk in the kneaded dough for the most part and while kneading with buckwheat, the tofu or egg uiijuk has been boiled down to knead the dough, and and starch powder, bean powder, or rice powder, etc were mixed to make the mandu coating. Buckwheat powder was mixed toadded to the flourwer or was used by itself, while meat, vegetables, tofu, and shiitake mushroom, etc were also addedincluded. From the 18th century, the host plant, or cabbage kimchi, were prepared and combined had been sliced to be used as filling together while red pepper powder was mixed combined withto spices or vinegar soy sauce to be used together. Also, Radishes had beenwere also used as filling, but shown as not being used fromafter the start of the 1900's. For the shape of mMandu, it was madeinto different shapes such as as triangle, rectangle, date plum, gwebul, half moon, or pomegranate shapes, and then shapes to be boiled in simmering water, baked, or cooked as soup in clear broth for soup., In the 17th to 18th century, boilingthen in a steamer gradually became a cooking style, assumed the style of boiling in a steamer in $17th{\sim}18th$ century while in the 16th century,the an essay ofn fermenting flour in ‘Food Dimibang’ in 16th century had indicated it was cooked as the style ofby steaming in a rice steamer. Also, Mandu may have also contained the following: the thin-cut and boiled fish was cut out thin to put into the filling and boiled down, made by putting in added pine nuts after making bbeef jerky or boiled- down meat, fish, or shellfish itself to extractsand mold mandu only the ingredients combined withto put on starch powder, and then boiled down and put on pine nut powder finally, after it or cooled it wasdown to be eaten by dipping in vinegar soy sauce. In conclusion, many different types of mandu were made during the Joseon era using a variety ofwhile the ones using such various ingredients. are also one type of mandu.

Effects of Hillslope Treatments for Vegetation Development and Soil Conservation in Burned Forests (산불 피해 산림의 식생 발달과 토양 보존을 위한 사면 처리 효과)

  • Kim, Chang-Gi;Choung, Yeon-Sook;Joo, Kwang-Yeong;Lee, Kyu-Song
    • Journal of Ecology and Environment
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    • v.29 no.3
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    • pp.295-303
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    • 2006
  • Clear-cut followed by tree planting has been a conventional management practice in burned forests in Korea. Because this can considerably increase soil loss, hillslope treatments may be needed in order to improve soil stability at poorly regenerating areas. This paper reviews the effects of hillslope treatments, such as seeding, mulching and log erosion barriers, which have been applied to restore vegetation and conserve soil in burned forests in North America and Europe. Seeding has been the most common method for postfire restoration. However, the effects of seeding on vegetation cover and soil erosion are not clear and seeding with non-native species has been reported to inhibit regeneration of native vegetation. Mulching has been found to be effective at reducing soil erosion. However, this also can introduce non-native plant species and inhibit native plant regeration. Although studies on the effect of log erosion barriers are very few, it appears that log erosion barriers are effective in the period of little rainfall. Hillslope treatments for postfire restoration is not necessary for naturally regenerating areas and therefore, they should be restricted to the areas where regeneration potential is low and runoff and soil loss is considerable. Long-term monitoring is needed to assess the effectiveness of hillslope treatments on soil erosion, the introduction of non-native plant species and the inhibition of natural plant regeneration.

Judgment on the Criminal Responsibility of Perpetrators with Mental Disorders and Their Mental Examination (정신장애 범죄인의 책임능력 판단과 정신감정)

  • Choi, Min-Young
    • The Korean Society of Law and Medicine
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    • v.20 no.2
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    • pp.83-107
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    • 2019
  • This article focuses on §10 of Criminal Act of the Republic of Korea to discuss how to determine criminal responsibility of a perpetrator suffering from mental disorders, while reviewing existing process and standards of mental examination at each stage of the criminal procedure as well as exploring suggestions regarding how they should be complied. The determination of the sanity or criminal responsibility of the mentally ill as defined in the §10 of Criminal Act, by its nature, cannot be approached with a traditional, clear-cut dichotomy of biology by medical practitioner and psychology·normative science by lawyer. Looking into the actual procedure of determining mental and physical disorder with special consideration of mental illness reveals the inevitability of collaboration between lawyers and psychiatrists. In the meantime, the process and standards of mental examination at each stage of the criminal procedure must be definitive and clear. First of all, during the investigation stage, examination prior to prosecution should be more actively encouraged, considering that judging sanity of the perpetrator at the time of committing a criminal act is important. During the trial stage, the mandatory examination must be conducted depending on the sensitivity and gravity of the case. Next, medical examination to determine criminal responsibility and the one to order treatment and custody must be separately conducted in order to properly execute medical treatment and custody. Obligatory mental examination could be considered both during the stage of request for and execution of the treatment and custody. Lastly, the procedure of examination and format of examination documents need to be standardized for better objectivity and reliability.

Seed Fructification and Seed Dispersal Characteristics by Harvest Types in Natural Regeneration Sites of Larix kaempferi (일본잎갈나무 천연갱신지의 종자 결실 및 벌채 유형별 종자 비산 특성)

  • Chung, Junmo;Kim, Hyun Seop;Chung, Sanghoon
    • Journal of Korean Society of Forest Science
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    • v.110 no.3
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    • pp.295-307
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    • 2021
  • This study proposed a field-applicable natural regeneration method using natural seeding to afforest a secondary growth forest after felling in Larix kaempferi plantations. In 2016, an experimental site was established usingseed-tree and clear-cutting methods in Gapyeong, Gyeonggi-do, South Korea. Characteristics of seed fructification and inflow in the natural regeneration site were analyzed along with an experimental site in Bonghwa, Gyeongsangbuk-do, which was established in 2014. As a result, the number of seeds per individual tree of V age class L. kaempferi was 690,340 seeds in a good year, with an estimated 13.8 million seeds per ha fruited in natural regeneration sites of L. kaempferi with 25 seed-trees per ha. Seed dispersal began in September and germination rates of seeds dispersed until November were greater than 40%. Reserved seed-tree sites showed the highest amount of seed inflow, followed by the seed-tree site and clear-cut site in descending order. The reserved seed-tree method performed better than other methods for evenly scattering seeds. Therefore, the timing of logging and seedbed generation for natural regeneration of L. kaempferi is estimated to be most effective before September when seeds are purposefully scattered using the reserved seed-tree method as an effective method for uniform seed supply.

Comparison of the Timber Harvesting Productivity and Cost of Single-operation using a Forestry Combi-machine Versus Multi-operation using a Tower-yarder and Processor (타워야더+프로세서 기반의 작업시스템에서 단공정 및 다공정작업의 생산성 및 비용분석)

  • Min-Jae, Cho;Yun-Sung, Choi;Ho-Seong, Mun;Jae-Heun, Oh
    • Journal of Korean Society of Forest Science
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    • v.111 no.4
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    • pp.583-593
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    • 2022
  • The harvesting system in South Korea faces the problems of aging workers and high wages, so it is necessary to improve the operation system and train workers to use high-performance forestry machines. This study compared the effectiveness and costs of yarding and processing operations between a multi-operation system using a tower yarder (HAM300) and a processor (KESLA 20SH) with those of a single-system using a forestry combi-machine. A whole-tree (cable) yarding operation was conducted in the clear-cutting area located at Compartment 15, Gwangneung Experimental Forest, National Institute of Forest Science, and the productivity and cost of multi- and single-system were analyzed. The productivity of the single-system was 1.5 m3/PMH and 1.6 m3/PMH higher than that of the multi- system because the single-system produced 1 log/cycle more than the multi-system in the yarding operation. The cost was approximately 12.1% lower for the single-system (₩36,113/m3) than for the multi-system (₩41,065/m3). The costs of the single-system and multi-system were decreased by maximums of 22.6% and 15.9%, respectively, by decreasing the idle time.

An Analytical Study on the Library Services Perceptions of the Social Workers (사회복지사의 도서관 서비스에 대한 인식 분석 연구)

  • Kim, Seon-Ho
    • Journal of Korean Library and Information Science Society
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    • v.44 no.1
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    • pp.99-122
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    • 2013
  • With the recent opening of The National Library for Individuals with Disabilities, interests in library services for the disable have been increasing. For the purpose of promoting library services for the disabled all the more, the study is to provide cooperative plans in policy between the social welfare and the library and information service based on library perceptions of social workers as specialists in disability and welfare fields. Cooperative plans in policy provided by this study are as follows: (1) The unique communication channel between librarians and social workers should be constructed through social networks. (2) Public relations on the value and necessity of both the library and librarians should be enhanced. (3) Education on the expertise of the social welfare for librarians should be enriched. (4) Clear-cut identities between librarian's and social worker's tasks should be established.

Reduced Telomere Length in Colorectal Carcinomas

  • Feng, Tong-Bao;Cai, Lei-Ming;Qian, Ke-Qing;Qi, Chun-Jian
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.2
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    • pp.443-446
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    • 2012
  • Purpose: Telomeres play a key role in the maintenance of chromosome integrity and stability, and telomere shortening is involved in initiation and progression of malignancies. The aim of this study was to determine whether telomere length is associated with the colorectal carcinoma. Patients and methods: A total of 148 colorectal cancer (CRC) samples and corresponding adjacent non-cancerous tissues were evaluated for telomere length, P53 mutation, and cyclooxygenase-2 (COX-2) mutation detected by fluorescent immunohistochemistry. Telomere length was estimated by real-time PCR. Samples with a T/S>1.0 have an average telomere length greater than that of the standard DNA; samples with a T/S<1.0 have an average telomere length shorter than that of the standard DNA. Results: Telomeres were shorter in CRCs than in adjacent tissues, regardless of tumor stage and grade, site, or genetic alterations (P=0.004). Telomere length in CRCs also had differences with COX-2 status (P=0.004), but did not differ with P53 status (P=0.101), tumor progression (P=0.244), gender (P=0.542), and metastasis (P=0.488). There was no clear trend between T/S optimal cut-off values (<1 or > 1) and colorectal tumor progression, metastasis, gender, P53 and COX-2 status. Conclusion: These findings suggesting that telomere shortening is associated with colorectal carcinogenesis but does not differ with tumor progression, gender, and metastasis.