• Asian-Australasian Journal of Animal Sciences
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• v.9 no.5
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• pp.503-508
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• 1996

The data analysed consisted of records on lactation length (LL), total lactation yield (TLY), estimated 305-day yield (305 DY), days dry (DDRY), age at frist calving (AFC) and calving interval (CI) of 448 Friesian $\times$ Bunaji halfbreds that calved over a twenty-three year period (1967-1989) at the National Animal Production Research Institute, Shika, Nigeria. Least squares means of LL, TLY, 305DY, DDRY, AFC and CI were 250 days, 1,988 kg, 2,420 kg, 102 days, 35 months and 390 days, respectively. Parity, season and year of calving significantly affected LL, TLY (p < 0.01) and 350DY (p < 0.05), but not CI. DDRY was affected by season of calving only (p < 0.05). It was therefore concluded that the Shika Friesian $\times$ Bunaji crossbreeding programme was successful and beneficial in that the $F_1$ crosses calved at a younger age, produced twice as much milk, had longer lactations and slightly shorter calving intervals than the indigenous Bunaji.

• Proceedings of the PSK Conference
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• 2002.10a
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• pp.321.2-321.2
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• 2002

Possible role of anti-inflammatory effects of a new iridoids, patridoid I. II and II-A which were isolated from Patrinia saniculaefolia. examined by assessing their effects on tumor necrosis factor $\alpha$ (TN F$\alpha$) and 2 enzymes, inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in the lipopolysaccaride (LPS)-stimulated murine macrophage-like cell line RAW 264.7. Among them. patridoid II consistently inhibited the production of TNF$\alpha$ and NO production in a dose dependent manner. But patridoid I and patrioid ll isomer palrioid ll-A. these compounds very weakly inhibited NO producion. Moreover. treatment of macrophage with these compounds, the decrease in NO products was accompanied by a decrease in iNOS protein level as assessed by Western Blot. But these compounds did not affect COX-2 protein expression in LPS-stimulated macrophage. Our results suggest that patridoid ll could become a leading compound for developing a novel of anti-inflammalory drugs.

• Food Science of Animal Resources
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• v.22 no.1
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• pp.59-65
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• 2002

This study was carried out to evaluate the effect of whey protein concentrate-80%(WPC-80) and whey protein isolate(WPI) on the growth of B. bifidum Bb-11. Whey proteins($\alpha$-lactalbumin, $\beta$-lactoglobulin) were digested with trypsin, then their hydrolyzates were separated into three fractions (>10,000Da, 3,000∼10,000Da, <3,000Da) by two-step ultrafiltration process with Centriprep 10 and Centricon-30. These three fractions by molecular weight were evaluate growth-promoting effects for the B. bifidum Bb-11. The results obtained were summarized as follows; The growth rate of B. bifidum Bb-11 tended to increase by supplementation of WPC-80 to basal medium, but decreased by supplementation of WPI. Two whey proteins were hydrolyzed by trypsin at 40$\^{C}$ for 6 hrs, and three fractions were collected by UF treatment and concentrated by Centricon-30. Collected concentrations of protein of F-I and F-II and F-III from $\alpha$-lactalbumin were 11.53mg, 7.79mg, and 5.21 mg and those of protein from $\beta$-lactoglobulin were 4.13mg, 5.30mg, and 9.351mg, respectively. Three fractions of $\alpha$-lactalbumin hydrolyzates promoted the growth rate of B. dbifidum Bb-11. Growth promoting activities of hydrolyzates(F-I and F-II) with molecular weight below 10,000Da were stronger than that of hydrolyzate(F-III) above 10,000Da. However, there was no significant difference between the hydrolyzate F-I and F-II. Three fractions of $\beta$-lactoglobulin hydrolyzates improves the growth rate of B.bifidum Bb-ll. The growth of B.bifidum Bb-ll was decreased after 24 hr incubation by supplementation of either F-II or F-III fraction compared to basal Whey medium, but maintained the enhancement by supplementation of F-I.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.11 no.5
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• pp.707-714
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• 2000

In this paper, using third-order system of the PLL we'll analyze the aspect of flicker noise appearing troubles in the low frequency band. Since it is difficult to analyze mathematically flicker noise in the third-order system of the PLL, introducing the concept of pseudo-damping factor using the optimized second-filter has made an ease of the access of the flicker-noise variance. we'll show a numerical formula of flicker variance in the third-order system of the PLL which is compared with that of 1/f noise variance in the second-order system of the PLL.

• Asian-Australasian Journal of Animal Sciences
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• v.10 no.6
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• pp.581-586
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• 1997

The present study analysed the various productive and reproductive characteristics of 1/2 Pabna Milking Cows (PMC)-1/2 Sahiwal (S) and 1/4 PMC-3/4 S collected from the Pabna milkshed area at Baghabarighat, Sirajgonj, Bangladesh. The studied traits were birth weight (BWT), age at puberty (AP), number of services per conception (NSC), post partum heat period (PPHP), gestation period (GP), daily milk yield (DMY), lactational production (LP), lactation length (LL), fat percentage and solids-not-fat percentage (SNFP). Five individual Sahiwal sires were used for the upgrading of Pabna Milking Cows. The used data covered from 1987 to 1994. Least-squares analysis of variance showed that genetic group had a significant effect on BWT (P < 0.05), AP (p < 0.01), DMY (p < 0.01), LP (p < 0.001), LL (p < 0.05), FP (p < 0.05) and SNFP (p < 0.01). Genetic group had non-significant effect on NSC, GP and PPHP. The effect of sire was significant on BWT (p < 0.01), NSC (p < 0.01), LP (p < 0.05) and LL (p < 0.05). The AP, NSC, DMY, LP, LL and SNFP were higher in 1/2 PMC-1/2S cows; BWT and PPHP were higher in 1/4 PMC-3/4S but GP and FP were almost same in both genetic groups. From this study it may be concluded that production and use of 1/2 PMC-1/2S would seem more profitable for commercial milk production in the Bangladesh Milk Producers' Cooperative Union Limited (BMPCUL) area and at the same time emphasis should be given on rigorous sire selection.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2002.05a
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• pp.216-221
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• 2002

본 연구는 문자 규칙 심층성이 다른 문자체계인 한국어와 중국어의 차이가 이중언어화자의 모국어 처리와 외국어 처리에서 각각 어떤 대뇌 활성화의 차이를 가져오는지 fMRI (functional Magnetic Resonance Imaging)를 이용하여 살펴보았다. 중국어 (Ll)-한국어(L2) 이중언어화자 및 한국어(Ll)-중국어(L2) 이중언어화자를 제 2언어 습득시기에 따라 초기 및 후기 이중언어화자로 구분하여 모국어 차이와 습득시기에 따른 영향을 알아보았다. 실험 1에서는 어휘 판단 과제(lexical decision task)를 실시하였고, 실험 2에서는 의미 판단 과제(semantic decision task)를 각각 실시하였다. 어휘판단과제를 사용한 실험 1의 결과는 음운처리와 관련된 좌반구 SMG(supramarginal gyrus), 하두정소엽(inferior parietal lobule, BA 39, 40)에서 중국어-한국어 초기 및 후기이중언어화자의 경우, 한국어 조건에서 보다 많은 활성화를 보였으나, 한국어-중국어 화자의 경우 활성화가 나타나지 않았다. 철자처리에 관련된 방추상회(fusiform gyrus, BA 37, 19) 영역에서는 중국어-한국어 화자뿐만 아니라, 한국어-중국어 인중언어화자의 경우도 중국어 조건에서 보다 많은 활성화를 보였다. 실험 2에서 사용한 의미판단과제의 경우, 중국어-한국어 이중언어화자의 경우 어휘판단과제를 사용한 실험 1의 결과에서 보고된 한국어 특정적인 반응, 즉 SMG영역에서의 활성화의 증가가 실험 2에서는 나타나지 않았다. 그러나 한국어-중국어 이중언어화자의 경우, 실험 1에서 나타난 것과 같이 철자처리 혹은 의미처리와도 관련된다고 보고되는 방추상회(fusiform gyrus)등의 영역 유의미한 차이를 나타났다. 이는 어휘 판단과제와 의미판단과제가 유도하는 뇌 활성화 양상이 다름을 시사한다. 종합해 볼 때, 이중언어화자의 뇌 영상 연구에서 어휘수준에서는 거의 공통적인 활성화를 보인다는 개략적 수준의 연구 결과를 넘어, 음운처리 및 철자처리와 같은 어휘접근 수준에서는 이중언어화자들의 뇌 활성화가 다르게 일어남을 보여주고 있다. 따라서 이중언어 화자의 뇌 기전을 밝히기 위해서도 보다 개략적 수준을 넘어 언어처리의 세부적인 수준에 따른 접근이 필요함을 시사한다.

• Journal of the Korean Electrochemical Society
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• v.6 no.2
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• pp.158-160
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• 2003

We have reported to make nanostructured cobalt oxide electrode that have large capacitance over than 400 F/g (specific capacitance) and good cycleability. But, it had serious demerits of low voltage range under 0.5 V and low power density. Therefore, we need to increase voltage range of cobalt oxide electrode. We report here on the electrochemical properties of sol-gel-derived nanoparticulate cobalt xerogel in 1M KOH solution and aqueous polymeric gel electrolyte. In solution electrolyte, cobalt oxide electrode had over 250 F/g capacitance consisted of EDLC and pseudocapacitance. In gel electrolyte, cobalt oxide electrode had around 100 F/g capacitance. This capacitance was only electric double layer capacitance of active surface area. In solution electrolyte, potassium ion as working ion reacted with both of layers easily. However, In gel electrolyte, reacted with only surface-active layer. Itis very hard to reach resistive layer. So, we have studied on pretreatment of electrode to contain working ions easily. We'll report more details.

• Journal of Microbiology and Biotechnology
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• v.9 no.5
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• pp.655-660
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• 1999

Sphingomyelinase (SMase EC:3.l.4.l2) has been suggested to play important roles in the cell cycle, differentiation, apoptosis, inflammation, and the regulation of eukaryotic stress responses. SMase inhibitors may be a powerful tool to elucidate and regulate these cellular responses in which SMase involves. We first isolated an SMase inhibitor, named sphinin, from a strain of soil actinomycetes, F50970. Sphinin inhibited Mg/sup 2+/ -dependent neutral SMase from chicken embryo at 1.2 ㎍/㎖ of IC/sub 50/ Sphinin also inhibited acidic SMase, but it had no inhibitory activity on PI-PLC and PC-PLC, suggesting that sphinin is a specific inhibitor of SMase. The strain F50970 was identified as a Streptomyces sp. by its spiral spore chain, LL-diaminopimelic acid, menaquinone patterns of MK-9 (H'6) and MK-9 (H'8), FA-2c type of fatty acid pattern, and other morphological, physiological, and cultural characteristics.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2001.11b
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• pp.93-96
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• 2001

We have reported to make nanostructured cobalt oxide electrode that have large capacitance over than 400F/g (specific capacitance) and good cycleability. But, It had serious demerits of low voltage range under 0.5V and low power density. Therefore, we need to increase voltage range of cobalt oxide electrode. we report here on the electrochemical properties of sol-gel-derived nanoparticulate cobalt xerogel in 1M KOH solution and aqueous polymeric gel electrolyte. In solution electrolyte, cobalt oxide electrode had over than 250F/g capacitance consisted of EDLC and pseudocapacitance. In gel electrolyte, cobalt oxide electrode had around l00F/g capacitance. This capacitance was only surface EDLC. In solution electrolyte, potassium ion as working ion reacted with both of layers easily. However, In gel electrolyte, reacted with only surface-active layer. Its very hard to reach resistive layer. So, we have studied on pretreatment of electrode to contain working ions easily. We'll report more details.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2001.11a
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• pp.93-96
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• 2001

We have reported to make nanostructured cobalt oxide electrode that have large capacitance over than 400F/g (specific capacitance) and good cycleability. But, It had serious demerits of low voltage range under 0.5V and low power density. Therefore, we need to increase voltage range of cobalt oxide electrode. we report here on the electrochemical properties of sol-gel-derived nanoparticulate cobalt xerogel in 1M KOH solution and aqueous polymeric gel electrolyte. In solution electrolyte, cobalt oxide electrode had over than 250F/g capacitance consisted of EDLC and pseudocapacitance. In gel electrolyte, cobalt oxide electrode had around 100F/g capacitance. This capacitance was only surface EDLC. In solution electrolyte, potassium ion as working ion reacted with both of layers easily. However, In gel electrolyte, reacted with only surface-active layer. Its very hard to reach resistive layer. So, e have studied on pretretmetn of electrode to contain working ions easily. We'll report more details.