• Journal of the Korean Society of Costume
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• v.59 no.5
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• pp.180-201
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• 2009

I scrutinized the idea that Parhae Marek was inherited from Kokuryo which was presented in "The study on the Marek" published in the journal of the Korean Society of Costume 55-5, and concluded the following results: 1. The Marek which Samguk sagi recorded is the red head scarf used for dancers who do Koguryo dance in the Babarian Music System in Tang dynasty. Since its original record Tong dian tells that Kokuryo performers' costumes then had strikingly changed and Quichi and GaoChang dancers also wore Marek, so the idea that Marek was originated from Koguryo should be reconsidered. 2. Considering the Yaksoori mural's indistinguishable condition as well as the same scenes from other Kokuryo mural paintings, I can't evidently tell that the first person who carries shouldering drum puts Marek on. 3. should be pronounced [Mal] for the meaning of a head scarf and its definition can't be limited only for the sash type. 4. Diverse historical data on head scarves deny the assumption that the sash type of hairband would have been succeeded from Kokuryo to the Parhae Marek. 5. The Marek of Princess Junghyo's mural painting can be an example that shows the costume of Tang influenced Parhae's. But the similarity in styles of costume between contemporary countries doesn't mean their reciprocal racial or political identity.

• Journal of the Korean Society of Costume
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• v.55 no.5 s.95
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• pp.78-86
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• 2005

Marek(말액) is the headgear, which is a form of hempen hoods[Geon(건)] and the origin of it is Pa(파) of band form. A history book of an old Chinese country Post-Han $\ll$ History of HouHan (후한서)$\gg$ had recorded that a soldier wore a red band around his head that was called Pa(파). In the Han dynasty(한대), Pa had been transformed into Chaek(책) or a kind of a hemp rap(건) while e headgear had still remained as the band form and called Marek from e Tang era(당). The literatures of the Tang era had referred the red Marek of soldiers, and other literatures of the later period had recorded that of the previous headgears of the band form were related with Marek. Since the Tang era, white or yellow Marek except red one fer soldiers had been were by soldiers, musicians, dancers and singers in Yuan(원) and Ming(명) of China. The colors was recorded in red on documents mostly, this red implicated soldiers for symbol of terror. This fart was documented in an old history book $\ll$The history of 25 Eras(이십오사)$\gg$, On the other side, a wall painting in Princess Jeonghyo(정효공주)'s tomb of the Parhae(발해) period described the portraits of twelve persons, and among them, two Siwui(시위) put on the red Marek. Quoted from the record of a history book of the Tang era system , a history book of Three Kingdoms(삼국시대) of ancient Korea $\ll$Samguksaki(삼국사기)$\gg$ described that four dancers of Kogryo(고구려) wore Marek on their heads with the costumes of Koguryo, one of those Kingdoms. In consideration that the book of $\ll$Tongjun$\gg$ was the literature of the Tang era so that Marek mentioned in this book was followed by their name, the Marek of Koguryo dancers shown in the history book $\ll$Samguksaki(삼국사기)$\gg$ might be a kind of Koguryo style hemp cap[Geon(건)]. The Marek of Parhae had succeeded to the headgear of Koguryo and the identity was on Koguryo.

• Journal of the korean veterinary medical association
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• v.14 no.4
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• pp.239-252
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• 1978

Two diotinot lymphomatous diseases occur in the field in domestic fowl: Lymphoid leukosis, which is caused by an oncornavirus and Marek's disease, which is caused by a herpesvirus. They are the most common neoplastic diseases of the chicken, and Marek's d

• Korean Journal of Veterinary Research
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• v.9 no.1
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• pp.23-62
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• 1969

Throughout the studies the following experimental results were obtained and are summarized: 1. Multiplication of agents in primary cell cultures of both GF classical and CR-64 acute strain of Marek's disease infected chicken kidneys was accompanied by the formation of distinct transformed cell foci. This characteristic nature of cell transformation was passaged regularly by addition of dispersed cell from infected cultures to normal chicken kidney cell cultures, and also transferred was the nature of cell transformation to normal chick-embryo liver and neuroglial cell cultures. No cytopathic changes were noticed in inoculated chick-embryo fibroblast cultures. 2. The same cytopathic effects were noticed in normal kidney cell monolayers after the inoculation of whole blood and huffy coat cells derived from both forms of Marek's disease infected chickens. In these cases, however, the number of transformed cell foci appearing was far less than that of uninoculated monolayers prepared directly from the kidneys of Marek's disease infected chickens. 3. The change in cell culture IS regarded as a specific cell transformation focus induced by an oncogenic virus rather than it plaque in slowly progressing cytopathic effect by non-oncogenic viruses, and it is quite similar to RSV focus in chick-embryo fibroblasts in many respects. 4. The infective agent (cell transformable) were extremely cell-associated and could not be separated in an infective state from cells under the experimental conditions. 5. The focus assay of these agents was valid as shown by the high degree of linear correlation (r=0.97 and 0.99) between the relative infected cell concentration (in inoculum) and the transformed cell foci counted. 6. No differences were observed between the GF classical strain and the CR-64 acute strain of Marek's disease as far as cell culture behavior. 7. Characterization of the isolates by physical and chemical treatments, development of internuclear inclusions in Infected cells, and nucleic acid typing by differential stainings and cytochemical treatments indicated that the natures of these cell transformation agents closely resemble to those described fer the group B herpes viruses. 8. Susceptible chicks inoculated with infected kidney tissue culture cells developed specific lesions of Marek's disease, and in a case of prolonged observation after inoculation (5 weeks) the birds developed clinical symptoms and gross lesions of Marek's disease. Kidney cell cultures prepared from those inoculated birds and sacrificed showed a superior recovery of cell transformation property by formation of distinct foci. 9. Electron microscopic study of infected kidney culture cells (GF agent) by negative staining technique revealed virus particles furnishing the properties of herpes viruses. The particle was measured about $100m{\mu}$ and, so far, no herpes virus envelop has been seen from these preparations. 10. No relationship of both isolates to avian leukosis/sarcoma group viruses and PPLO was observed.

• Korean Journal of Veterinary Pathology
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• v.5 no.2
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• pp.49-56
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• 2001

Ocular lesions induced in 40 specific-pathogen-free Marek's disease (MD) resistant chicks by inoculation at 1 day of age with very virulent strain of Marek's disease virus (WV) were pathologically examined. Grossly,24/40 (60%) chicks had white gel-like materials in the vitreous body, whereas thickening and discoloration of iris (gray eye) were not observed. Microscopically, characteristic ocular MD lesions were observed in choroid (27/40), ciliary (30/40) and iris (23/40) in which small focal inflammatory to diffuse neoplastic Iymphoid cells were infiltrated. Five out of 40 MDV-inoculated birds revealed necrotizing Iymphomas in choroid. These lesions consisted of necrotic and degenerating Iymphoblasts accompanied by intranuclear inclusion body. There was retinal atrophy and necrosis with inclusion body detected in necrotic ganglion, inner or outer nuclear and infiltrated Iymphoblast cells. Conjunctiva showed lymphoid cell infiltration in 29/40 chicks inoculated with MDV, Vitreous body exhibited mild to severe exudation of eosinophilic proteinaceous material in 24/40 chicks. These lesions were associated with Iymphoid cell infutration, edema and fibrosis of choroid. Pecten (7/40) and optic nerve (13/40) were infiltrated usually mildly with Iymphoid cells. From these results, very virulent strain, Md/5 of MDV caused high incidence of ocular lesions in MD resistant chicks. In addition, Md/5 induced exudation of proteinaceous material into the vitreous body and fibrosis of choroid. Necrotizing ocular Iymphoma lesions in choroid is the first report in the MD literature.

• Korean Journal of Veterinary Research
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• v.38 no.1
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• pp.101-106
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• 1998

The present study attempted to apply polymerase chain reaction (PCR) to develop a rapid differential diagnosis among Marek's disease, reticuloendotheliosis and avian leukosis. The primers chosen to detect Marek's disease virus (MDV) flank the 132bp tandem direct repeat of the MDV genome. The primers selected for reticuloendotheliosis virus (REV) and avian leukosis virus (ALV) are based on proviral long terminal repeats of spleen necrosis virus and Rous-associated virus-2 genomes, respectively. The specific PCR products of MDV, REV and ALV were observed with each primer and the reaction was not cross-reacted among the viruses. MDV-specific DNA was also amplified from the MDV-induced lymphoma (MDCC-MSB1) but not from the REV-induced tumor and ALV-induced lymphoma (LSCC-1104B1). In addition, proviral DNA of REV from REV-induced tumor and proviral DNA of ALV from ALV-induced lymphoma were also amplified by REV-specific and ALV-specific PCRs, respectively. Therefore these three PCR methods may be used to rapidly differentiate among MDV, REV and ALV-associated tumors in diagnosis.

• Korean Journal of Poultry Science
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• v.34 no.4
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• pp.301-318
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• 2007

Marek's disease (MD) is a highly contagious lymphoproliferative disease of poultry caused by the oncogenic herpesvirus designated Marek's disease virus (MDV). MD has a worldwide distribution and is thought to cause an annual loss over US$ one billion to the poultry industry. Originally described as a paralytic disease, today MD is mostly manifested as an acute disease with tumors in multiple visceral organs. MD is controlled essentially by the widespread use of live vaccines administered either in ovo into 18-day-old embryos or into chicks immediately after they hatch. In spite of the success of the vaccines in reducing the losses from the disease in the last 30 years, MDV strains have shown continuous evolution in virulence acquiring the ability to overcome the immune responses induced by the vaccines. During this period, different generations of MD vaccines have been introduced to protect birds from the increasingly virulent MDV strains. However, the virus will be countered each new vaccine strategy with ever more virulent strains. In spite of this concern, currently field problem from MD is likely to be controled by strategy of using bivalent vaccine. But, potential risk factors for outbreak of MD are still remained in this condition. The major factors can be thought that improper handling and incorrect administration of the vaccine, infection prior to establishment of immunity, suppression of immune system by environmental stress and outbreaks of more virulent MDV strain by using vaccine and genetic resistance of host.

• KOREAN POULTRY JOURNAL
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• v.3 no.12 s.26
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• pp.83-83
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• 1971

• Computational Structural Engineering : An International Journal
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• v.1 no.2
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• pp.97-106
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• 2001

Safety and serviceability of a planar steel frame are assessed. Attention is turned to the individual main steps in the assessment procedure, i.e., to the definition of loads, selection of transformation model, determination of the response of the structure to the loading, and to the definition of the limiting values (considering safely and serviceability of the structure). The potential of the method using direct Monte Carlo technique as a powerful tool is emphasized.

• KOREAN POULTRY JOURNAL
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• v.32 no.10 s.372
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• pp.122-125
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• 2000