• Journal of the Korean association of regional geographers
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• v.14 no.3
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• pp.199-211
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• 2008

This study looks into existing discussion about the entry time and the geographical criteria point of 'Ho-Nam' as a place name. And discusses the reason which the geographical criteria point is not clear with emphasis on the possibility of the geographical range change of place name. The result is as follows. Firstly, the regional criteria of 'Ho-Nam' is Kum-River if we consider direction and the role as a regional barrier among the existing offered criteria. Secondary, the criteria of Ho-Nam and Ho-Seo might be different each other. A place name of Ho-Nam had appeared before Chosun period as a geographical concept and changed to the cultural concept during Chosun period. And Ho-Seo was established in Chosun period. But 'Ho-Nam=Jeon-la Province' and 'Ho-Seo=Chung-cheong Province' is established during Chosun period as a cultural concept. Thirdly, the geographical range of Ho-Nam of Go-Ryeo period and Chosun period were different each other. Fourthly, the criteria of Ho-Nam may be the Han-River if we consider the entry time and geographical range change.

• Progress in Medical Physics
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• v.10 no.3
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• pp.151-157
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• 1999

The GafChromic film was used for the dosimetry of a balloon angio catheter filled with the radioisotope HO-166 for endovascular irradiation. The balloon angio catheter was 2 cm long and 3 mm in diameter when inflated. The isotope, Ho-166, was produced by the neutron bombardment using the research reactor in Korea Atomic Energy Research Insititute. Co-60 teletherapy beam was used for making H-D curve for the Gaf-Chromic film. The film dosimetry was measured with a videodensitometer. The radial dose distribution indicated that the absorbed dose dropped to about 20% of the surface dose at the 1 mm away from the balloon surface and at 5 mm position the dose decreased to below 1% of the surface dose. The result also shows that with the specific activity of Ho-l66, 250 mCi/ml it takes 230 seconds to deliver 1200 cGy to the region where is 1mm away from the balloon surface. The concentric isodose curves were also presented. The Ho-166 is an another alternative for endovascualr irradiation to prevent restenosis after PTCA (Percutaneous Trans Coronary Angioplasty)

• The Research Journal of the Costume Culture
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• v.7 no.3
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• pp.22-34
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• 1999

The purpose of this study was to trace and identify the origin and the meanings of the word ho-su(胡袖) of Chosun dynasty period. Findings of this study can be summerized as follows : The original meaning of the word ho-su(胡袖) is a name of round sleeves. Later it was used as a name of a dress with round sleeves. The word ho-su as a name of a dress is an abbrecviated form of ho su so o za(好袖小 子) of a previous period. The word jyo go ri(赤古里) in historical documents is anothor name of so o za(小 子). Wearing the ho-su(胡袖) was restricted to royal family women. It was included in royal women\`s wedding garments as ordinary use. Colors of this dress was used as a means of differentiating the rank and position of the wearer.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.14 no.10
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• pp.792-795
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• 2001

we present a electrical transport(resistivity, Hall effect) measurements in varying temperature ranges between 78K and 300K on HoSi$_2$ composites by hot-pressed sintering. It has been found that this sintered HoSi$_2$ has a orthorhombic structure, and lattices constant is a=9.8545$\AA$, b=7.7935$\AA$, c=7.8071$\AA$. The measured electrical resistivity is about 1.608$\Omega$ cm and carrier mobility is about 6.9$\times$10$^{1}$cm $^{2}$V.sec at low room temperature. The Hall effect shows a n-type conductivity in the sintered HoSi$_2$.

• Proceedings of the KIEE Conference
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• 2001.07c
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• pp.1396-1398
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• 2001

The $HoSi_2$ compounds prepared by codeposition of Si and Ho, and $HoSi_2$ by sintering method were investigated electrical and Hall effect. The crystal structure of samples showed a orthorhombic structure, and lattices constant is a=9.8545 $\AA$, b=7.7935 $\AA$, c=7.8071 $\AA$. Hall effect shows a n-type conductivity in the sintered $HoSi_2$. The electrical resistivity values was 1.608${\Omega}cm^{-1}$ and carrier mobility was $6.9{\times}10^1cm^2/V{\cdot}sec$ at low room temperature.

• Proceedings of the KIEE Conference
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• 1999.07c
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• pp.1126-1129
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• 1999

In this paper theoretical review for the design and the algorithm of Artificial Fault Generator, on the power distribution center is which able to purposely generate and get rid of fault with the view of testing distribution systems including switchgears, was made. For the following paper verification with EMTP will be performed in order to review the function and the algorithm so that the optimized design can be established.

• 대한핵의학회:학술대회논문집
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• 1999.05a
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• pp.200-204
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• 1999

Rheumatoid arthritis (RA) is o chronic inflammatory disease of joints with proliferation of synovial epithelial tissue. Therapeutic approach of the RA consists of pharmacological and surgical interventions. Synovectomy is indicated in patients with progressive inflammatory signs and symptoms intractable to medical treatment including local intracavitary steroid injection. Recently, local injection of radionuclides which emit high energy beta rays are labeled with chemical compounds such as $^{90}Y,\;^{165}Dy-ferric$ hydroxide macroaggregate and have been introduced as an alternative therapeutic modality to surgical synovectomy. Holmium-166 is one of beta emitter and Ho-166-chitosan complex was developed for radiation synovectomy. Preclinical trial is on-going at our hospital using Ho-166-chitosan. The procedure and methods of preclinical trial are discussed.

• Proceedings of the Korean Society of Applied Pharmacology
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• 2004.04a
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• pp.21-35
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• 2004

Heme oxygenase (HO)-l catabolizes heme into three products: carbon monoxide, bilirubin, and free iron. HO-l serves as a protective gene by virtue of the anti-inflammatory, anti-apoptotic and anti-proliferative actions of one or more of these three products. HO-l can be regarded as a potential therapeutic target in a variety of oxidant-mediated and inflammatory diseases. In this respect, it would be valuable to develop potent and selective inducers of HO-1 for therapeutic use. Here, we have shown that 1,2,3,4,6-penta-O-galloyl-beta-D-glucose, catalposide and dehydrocostus lactone are potent inducers of HO-1 and exert cytoprotective and anti-inflammatory activities via HO-1-ependent machanism.

• Journal of Plant Biology
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• v.26 no.3
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• pp.131-139
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• 1983

Temperature response of amoebae of thermotactic mutants have been investigated. Amoebae of the mutant strain HO 428 showed positive thermotaxs which is strong at lower temperaturs and drops sharply above the growth temperature of amoebae. The temperature response of HO 428 amoebae was not affected by the length of amoebae on the grdients. HO 596 amoebae seemed to have both positive and negative thermotactic responses shortly after food depletion. Longer exposure of these amoebae on the thermal gradients induced a stronger negative response at lower temperatures and an apparent positive response at higher temperatures. A similar changes could be observed in HO 1445 amoebae. Based on the steady positive thermotactic response by HO 428 amoebae and the mode of change in termperature response at higher temperatures, 24$^{\circ}C$ and $25^{\circ}C$, by HO 596 amoebae, a model for the temperature response of vegetative Dictyostelium discoideum amoebae, strain HL 50, has been proposed. The main features of the model are: a positive response at the thermal gradients with midpoint temperatures lower than the growth temperatures of amoebae and a negative response above it.

• Journal of dental hygiene science
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• v.10 no.4
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• pp.227-231
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• 2010

The purpose of this study was to examine the MAPK signaling pathways involved in regulation of HO-1 and the odontoblast differentiation markers during the odontoblastic differentiation for HDPCs. We evaluated cell growth by MTT assay and differentiation marker mRNA expression by RT-PCR. When the cells were treated with p38 inhibitor (SB203580, $10{\mu}M$), JNK inhibitor (SP600125, $10{\mu}M$), and ERK inhibitor (PD98059, $20{\mu}M$) for 7 days, cell growth and expression of HO-1 and differentiation makers were significantly decreased in HDPCs. Our results suggest that odontoblastic differentiation is positively regulated by HO-1 induction in HDPCs via ERK, JNK, and p38 signaling pathways. Thus, pharmacological HO-1 induction might represent a potent therapeutic approach for pulp capping and the regeneration of HDPCs.