• Title/Summary/Keyword: Minor

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Development of Molecular Marker to Distinguish Octopus minor Sasaki Caught in Korea and that in China (한국산과 중국산 낙지구별을 위한 DNA 마커)

  • Kim, Joo-Il;Oh, Taeg-Yun;Yang, Won-Seok;Cho, Eun-Seob
    • Journal of Life Science
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    • v.18 no.2
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    • pp.284-286
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    • 2008
  • Octopus minor (O. minor) is widely distributed along the coastal regions of Korea, but most of them are caught in southern waters which are associated with one of the important fisheries stock. At present, O. minor from China has been introduced to the fishery markets in Korea. Here, we attempt to discriminate their origin for Korea or China using molecular techniques. Based on the O. minor mitochondrial DNA sequence, we developed a PCR-based origin discrimination system. The assay specificity was assessed by testing four individuals of O. minor from Sangdong, China, as well as 20 additional O. minor from Namhae, Muan, Yeosu and Jindo, Korea. Only four isolates of O. minor originated from China tested as positive in our distinction system. All PCR-positive products yielded identical sequences from Chinese O. minor, whereas Korean O. minor appeared to be PCR amplification. This result suggested that the primers used in this study are O. minor species specific, especially originated from China. The detection system appeared to be positive results in the use of 0.1 ng of Chinese O. minor DNA as template, however, the Korean O. minor even using $1{\mu}g$ of DNA showed no amplification. Consequently, the assay provides a simple, rapid and accurate method for the detection of Chinese O. minor.

A Study on Harmonic Minor Scale's Chord Scale (Harmonic Minor Scale의 Chord Scale)

  • Kim, Hyeong-June;Kim, Dae-Seung
    • Proceedings of the KAIS Fall Conference
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    • 2012.05a
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    • pp.14-16
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    • 2012
  • 본 논문에서는 현재 Jazz에서 사용되어지는 Major Scale에서 나오는 7개 Chord Scale과 Melodic Minor Scale의 상행인 Jazz Minor Scale에서 나오는 7개 Chord Scale과는 별도로 Harmonic Minor Scale에서 정리해 보았다.

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Management and Regulation on the Minor Use of Pesticides in Korea and Foreign Countries (농약의 마이너 사용에 대한 국내외 관리 및 규제 현황)

  • Lee, Mi-Gyung
    • The Korean Journal of Pesticide Science
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    • v.17 no.3
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    • pp.231-236
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    • 2013
  • A solution on pesticide minor use is being requested world widely on behalf of growers and for the appropriate measure for pesticide regulation. Presently, definition on "minor use" is different by country. And furthermore registration for pesticide use and the regulation approach are dependent on whether the crop is minor or major. For these reasons, management for pesticide minor use are more complicated and aggravated. This paper aimed to provide information on definition of minor use, minor use programs and regulatory incentives for minor use registration, with the purpose of supporting in developing a possible solution on minor use situation in Korea. In conclusion, two suggestions were made based on the worldwide information on pesticide minor use. First, a prudent consideration should be taken in defining minor use legally in Korea, which should include all situations regarded with minor use of pesticide, besides the use of pesticide on the crops cultivated in small area. Secondly, it is proposed to strengthen the present program, the "Ex Officio Registration" (implemented since 1998 in Korea, lead by the Rural Development Administration) by introducing a cooperative program like IR-4 Project of the USA, which is well known as an effective program for minor use solution as mentioned in the OECD guidance.

Necessity of management for minor earthquake to improve public acceptance of nuclear energy in South Korea

  • Choi, Hyun-Tae;Kim, Tae-Ryong
    • Nuclear Engineering and Technology
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    • v.50 no.3
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    • pp.494-503
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    • 2018
  • As public acceptance of nuclear energy in Korea worsens due to the Fukushima accident and the earthquakes that occurred in the Gyeongju area near the Wolsong nuclear power plant (NPP), estimating the effects of earthquakes has become more essential for the nuclear industry. Currently, most countermeasures against earthquakes are limited to large-scale disasters. Minor-scale earthquakes used to be ignored. Even though people do not feel the shaking due to minor earthquakes and minor earthquakes incur little damage to NPPs, they can change the environmental conditions, for instance, underground water level and the conductivity of the groundwater. This study conducted a questionnaire survey of residents living in the vicinity of an NPP to determine their perception and acceptance of plant safety against minor earthquakes. The results show that the residents feel earthquakes at levels that can be felt by people, but incur little damage to NPPs, as minor earthquakes (magnitude of 2.0-3.9) and set this level as a standard for countermeasures. Even if a minor earthquake has little impact on the safety of an NPP, there is still a possibility that public opinion will get worse. This study provides analysis results about problems of earthquake measures of Korean NPPs and specific things that can bring about an effect of deterioration of public acceptance. Based on these data, this article suggests that active management of minor earthquakes is necessary for the sustainability of nuclear energy.

Fuzzy estimation of minor flank wear in face milling (면삭밀링가공시 공구 부절삭날 마모길이의 퍼지적 평가)

  • Ko, Tae Jo;Cho, Dong Woo
    • Journal of the Korean Society for Precision Engineering
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    • v.12 no.4
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    • pp.28-38
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    • 1995
  • The flank wear at the minor cutting edge significantly affects the geometric accuracy and surface roughness in finish machining. A fuzzy estimator based on a fuzzy inference algorithm with a max-min composition rule is introduced to evaluate the minor flank wear length. The features sensitive to minor flank wear are extracted from the dispersion analysis of a time series AR model of the feed directional acceleration signal. These features, dispersions, are used for constructing linguistic rules, and then the fuzzy inferences are carried out with test data sets collected under various cutting conditions. The proposed system turns out to be effective for estimating minor flank wear length.

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Deleuze and Guattari's Death, the Minor Literature and the Minor Philosophy of Education (소수자 문학과 문학교육의 과제)

  • Yoon, Seung Ri
    • Korean Educational Research Journal
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    • v.40 no.3
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    • pp.39-65
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    • 2019
  • This essay examines the relationship between death and the minor literature and the minor philosophy of education. Deleuze and Guattari conceive death as the source of question and the problem. Death overcomes Freud's death-drive and is conceived as the universal event. Then, death is understood as the essential problem, the condition of thought about life, and the paradox of actuality. On the other hand, their minor literature is able to figure in Kafka's works, Metamorphosis and so on, excellently. Deleuze and Guattari argue that Kafka's works push ahead to the edge of the deterritorization. Their argument on the minor literature has the following three characteristics: first, the territorization of the language; second, the directional connection between the individual and the social; third, the collective arrangement of the statement. Death and the minor literature share the "intensity" as the theoretical tool and thus presuppose each other. From this, we are able to draw the possibility of the minor philosophy of education. It makes a crack on the major philosophy of education, exposing the limitation of the doctrines. In other words, the major philosophy of education enforces the reading of grand philosophers by the defined ways only. Instead, Deleuze and Guattari show the creative way through their research of the history of philosophy and extend the field of thought. In following this way, we can repeat the novel in the philosophy of education also. In this essay, we examine their "affect" for the possibility.

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Indirect assessment of internal irradiation from tritium decay on Lemna Minor duckweed

  • Ifayefunmi, O.S.;Mirseabasov, O.A.;Synzynys, B.I.
    • Nuclear Engineering and Technology
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    • v.53 no.6
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    • pp.1991-1999
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    • 2021
  • The response changes of the specific growth rate of Lemna minor duckweed was modeled using the logarithms of frond numbers on tritium activity concentration and gamma radiation dose from cobalt 60. The concept of average specific growth rate depends on the general exponential growth pattern, where toxicity is estimated based on the effect on the growth rate. One of the main questions of the effect of the radiation dose on duckweed is how to correlate the effect of beta radiation with the effect of any other radiation for modeling radiation on Lemna minor. Experimental data were extrapolated by utilizing the OECD guidelines. A linear relationship of absorbed dose and activity concentration was obtained for the average dependency growth rate of Lemna minor as D = (0.1257)·A0.585. The dose rate of gamma irradiation from 60Co increases with tritium activity dependence, on the specific growth rate of the Lemna minor duckweed. An increase in the tritium activity causes a decrease in the specific growth rate of the Lemna minor duckweed. It indicates that as the quantity of the beta radiation dose increase in Lemna minor duckweed, a higher quantity of gamma radiation will be required to cause the same effect in the specific growth rate of Lemna minor duckweed. The relation between the inhibition of the Lemna minor seedling growth and gamma and beta radiation dosage agrees roughly with that between the decrease of survival rate or fertility and dosage.

In vitro Evaluation of Phalaris minor Seeds as Livestock Feed

  • Kaur, J.;Pannu, M.S.;Kaushal, S.;Wadhwa, M.;Bakshi, M.P.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.19 no.3
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    • pp.363-367
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    • 2006
  • The nutritional worth of Phalaris minor seeds was assessed in comparison to conventional cereal grains like maize and wheat. P. minor seeds had higher total ash and cell wall constituents as compared to wheat and maize grains. The CP content of P. minor was comparable to wheat grains but higher than maize grains. The in vitro studies revealed that the net gas production and availability of ME from P. minor was comparable to that of maize but the digestibility of nutrients was significantly (p<0.05) lower than that of conventional cereal grains. The digestion kinetic parameters for DM and CP revealed that P. minor had the highest (p<0.05) soluble fraction (a) followed by wheat and maize. Reverse trend was observed for insoluble but potentially degradable fraction (b). The effective and true DM and CP degradability was significantly (p<0.05) higher in wheat grains followed by that in P. minor and maize grains. The digestibility of OM and NDF was not affected by replacing cereal grains in concentrate mixture with P. minor seeds up to 75 per cent level. But the availability of ME from concentrate mixtures was comparable to control only up to 50% level of replacement. Replacement of cereal grains with P. minor did not affect the rapidly soluble fraction and insoluble but potentially degradable fraction of concentrate mixture containing P. minor up to 75 per cent, but it was depressed significantly at 100% replacement level. The effective and true degradability of DM of concentrate mixtures containing P. minor from 50 to 100 per cent was comparable to that of conventional concentrate mixture (CCM). The wheat based concentrate mixtures showed higher net gas production (208 vs. 201 ml/g DM/24 h), digestibility of nutrients and ME availability (9.64 vs. 9.54 MJ/kg DM) as compared to maize based concentrate mixture. The wheat based concentrate mixture had significantly (p<0.05) higher rumen undegradable fraction and effective degradability. The data conclusively revealed that conventional cereal grains could be replaced with P.minor seeds up to 75 per cent without affecting the availability of nutrients.

Clinical Analysis of 114 Cases of Malignant Salivary Gland Tumors (악성 타액선 종양 114 예의 임상고찰)

  • Park Yoon-Kyu;Seel David J.;Chung Dong-Kyu
    • Korean Journal of Head & Neck Oncology
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    • v.1 no.1
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    • pp.21-34
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    • 1985
  • The authors reviewed 114 cases of malignant major and minor salivary gland tumors at Presbyterian Medical Center seen from February, 1963 to December, 1983. The results were obtained as follows; 1) Overall male and female sex ratio was 2:1. The peak age of patients with major and minor salivary gland tumor were both 5 th decade. 2) The ratio of benign and malignant tumor was 83:114. The incidence of malignancy in each group was 52% in parotid (50 patients), 75% in minor salivary gland (45 patients), 49% in submaxillary gland(18 patients) and 25% in sublingual gland (1 patient). 3) The incidence according to the anatomic primary site for minor salivary cancers was 10 cases in the nasal cavity, each 8 in the palate and the maxillary antrum, 7 in the tongue, 5 in the gum, 3 in the larynx and 2 in the buccal mucosa. 4) Adenoid cystic carcinoma was the most common cancer of minor salivary gland and malignant mixed tumor was the most common in major salivary glands, each comprising 34 cases (76%) of minor and 19 cases (28%) of major salivary gland tumors. 5) The incidence of cervical lymph node metastasis was 50% in the submaxillary gland cancers, 44% in the parotid gland cancers and 21% in malignant tumors of minor salivary glands. The highest incidence of lymph node metastasis according to histopathological classification was formed in high grade of mucoepidermoid (67%). 6) Nerve invasion was common in mucoepidermoid carcinoma. According to anatomic site, nerve invasion occurred most often in adenoid cystic carcinoma of the submaxillary gland (44%). 7) The lung was the commonest site for distant metastasis comprising 12 cases among 26 cases in which distant spread occurred. 8) The recurrence rate was 50% for major salivary gland cancer and 52% in cancer of the minor salivary gland. In accordance with pathological classification, adenocarcinoma most frequently recurred after excision. This being seen in 88% of patients undergoing definitive therapy. 9) The determinate 5 year survival rate was 78% in major salivary gland tumors, but 69% in minor salivary gland tumors.

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The characteristic features of traumatic anterior shoulder instability due to an event of minor trauma

  • Mura, Nariyuki;Goto, Yasuo;Momonoi, Yoshiyuki;Takei, Isao;Tsuruta, Daisaku;Sasaki, Jyunya;Harada, Mikio;Ogino, Toshihiko
    • The Academic Congress of Korean Shoulder and Elbow Society
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    • 2009.03a
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    • pp.21-21
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    • 2009
  • There are some patients who have traumatic anterior shoulder instability due to minor injuries like overhead activities. The purpose of this study was to clarify characteristic features of traumatic anterior shoulder instability due to minor injuries. According to the mechanism of injury in an initial dislocation, 83 shoulders that underwent the stabilizing surgery for traumatic anterior shoulder instability were divided into two groups. Traumatic group included patients who suffered from a fall or a direct injury. Minor injury group included patients who suffered from the other injury like overhead activity. General joint laxity, range of motion and laxity under anesthesia, and intraarticular findings were compared between two groups. The morphology of superior and middle glenohumeral ligaments, Bankart lesion, Hill-Sachs lesion, and partial articular surface tendon avulsion lesion were observed in arthroscopy. Minor injury group consisted of 19 shoulders with 8 males, 11 females and the mean age of 22.5 years. Traumatic group consisted of 64 shoulders with 52 males, 7 females and the mean age of 24.3 years. Female in minor injury group was significantly more than that in traumatic group. There was no difference in general joint laxity and intraarticular findings between two groups. Range of external rotation in injured side in minor injury group was significantly more than that in traumatic group. Inferior laxity in both sides in minor injury group was more than that in traumatic group. In conclusion, the traumatic anterior shoulder instability due to minor injuries might incline to occur the shoulder in female and with inferior laxity of shoulder.

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