• 한국가축번식학회지
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• 제15권3호
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• pp.189-193
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• 1991

This study was carried out ot investigate effects of X-537A on hydrogen ion concentration insperm washed solution and sperm acrosome reaction. The results obtained were as follows. 1. When bovine sperm was twice washed with SHP solutions of pH 6.8 and 7.4 and again washed with SHP solution containing 4$\mu$M of X-537A, in case of pH 6.8 the sperm washed with 4$\mu$M of X-537A showed signifciantly(p<0.01) higher hydrogen ion concentration in sperm washed solution than the sperm washed without X-537A. 2. When the sperm was twice washed with SHP solution and then washed with SHP solution containing 4$\mu$M of X-537A, sperm acrosome rection rate was signifciantly(p<0.01) increased from 12min after incubation in the sperm washed without X-537A, but was signifciantly(p<0.01) increased from 8 min after incubation in the sperm washed with 4$\mu$M of X-537A. 3. When the sperm was twice washed with SHP solution and then washed with SHP solution containing 0, 4 and 40$\mu$M of X-537A, and then incubated in m-TALP for 120 min, sperm acrosome reaction rate was significantly(p<0.01) increased from 15 min after incubation in 0, 4 and 40$\mu$m OF X-537A. However at 60 min incubation 40$\mu$M of X-537A showed significantly(p<0.01) higher sperm acrosome reaction rate than 0 and 4$\mu$M and at 120 min incubation 4 and 40$\mu$M of X-537A showed signifciantly(p<0.01) higher acrosome reaction rate than 0$\mu$M of X-537A.

• Asian-Australasian Journal of Animal Sciences
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• 제30권9호
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• pp.1285-1291
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• 2017

Objective: A trial was conducted from 11 to 42 d post-hatch to investigate the effectiveness of the supplementation of a multiple-enzyme preparation (Natuzyme Plus) in a wheat-based diet on digesta viscosity, pH and microbial population, villus morphology, feed passage time, nutrient retention, carcass characteristics, blood lipid parameters and growth performance of broiler chickens. Methods: Three hundreds 10-d-old male Ross 308 chicks were allocated to three diets with five replicates of 20 birds per replicate. Dietary treatments were i) a wheat-based diet (W), ii) W+Natuzyme Plus (WN; 500 mg/kg of the diet), and iii) a corn-based diet (C). Results: Birds fed on the C diet had higher average daily gain (ADG, p<0.01), villus height (VH, p<0.01), total tract apparent retention (TTAR) of nitrogen (NT, p<0.01) and ether extract (EE, p<0.01), nitrogen-corrected apparent metabolizable energy ($AME_n$, p<0.05), relative weight (RW, % of body weight) of carcass (p<0.05), blood concentration of triglyceride (TG, on d 40 [p<0.01]), total cholesterol (TC, on d 22 [p<0.05]) and low density lipoprotein (LDL, on d 22 [p<0.01] and 40 [p<0.05]), and also lower feed conversion ratio (FCR, p<0.01), digesta viscosity (p<0.01), count of coliforms (p<0.01) and Escherichia coli (p<0.01) and epithelium thickness (ET, p<0.05) than those fed on the W diet. ADG, FCR, VH, ET, TTAR of NT and EE, RW of carcass, blood concentration of TG (on d 40), TC (on d 22) and LDL (on d 22 and 40) values of the WN diet did not show a significant (p>0.05) difference compared to those of the C diet. Compared to those of the W diet, the WN diet showed the higher count of Lactobacilli and lower count of coliforms (p<0.01) and digesta viscosity (p<0.01). Conclusion: In general, the results of this study showed that Natuzyme Plus supplementation in a wheat-based diet can be appropriate to achieve a comparable growth performance in broiler chickens to those given the C diet probably through improving digesta viscosity, VH, ET, TTAR of NT and EE, $AME_n$, count of Lactobacilli and coliforms.

• Journal of Nutrition and Health
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• 제29권9호
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• pp.1035-1041
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• 1996

The study was undertaken to examine the levels of serum lipids and the correlations between serum lipid levels and other factors(nutrient intakes, anthrometric measurement, blood pressure, drinking, smoking). The participants in this study were healthy volunteers over the age of 40 residing in Whachon area, Kang-Wan Do. The level of serum TG was higher in males than in females, particularly in age of 40(209.8mg/dl$\pm$154.9, p<0.05). The HDL-c/total cholesterol ratio(HTR) in males was the lowest(0.23$\pm$0.07, p<0.05) in age of 40 and in females was the lowest(0.25$\pm$0.1) in age of 60 and over. LDL-c/HDL-c ratio(LHR) was the highest (males 3.64$\pm$6.29, females 3.28$\pm$3.03) in age of 40 in both sexes. In the age of 40-59, serum TG, total cholesterol and LDL-cholesterol and HDL-cholesterol tended to increase with BMI. Serum TG showed positive correlation with drinking (r=0.026, p<0.001) and BMI (r=0.2096, p<0.01). BMI was negatively correlated with HTR(r=-0.2242, p<0.01) and HDL-cholesterol (r=-0.2054, p<0.01).

• 한국엔터테인먼트산업학회논문지
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• 제14권8호
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• pp.231-236
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• 2020

본 연구의 목적은 40~50대 중년에서 두개척추각(CVA), 나이, BMI와의 상관관계를 알아보는 것이다. 신체 건강한 성인 남녀 40~50대 456명을 대상으로 3D 센서를 활용한 자세측정기를 활용하여 전방머리자세를 측정하였다. 연구결과 전체 중년의 CVA는 나이와는 높은 수준의 음의 상관관계가 있고((r=-.937; p<.01), BMI에 대해서는 매우 낮은 수준의 양의 상관관계(r=.056가 있음을 확인하였다. 성별에 따른 연구에서 중년 남성의 CVA는 나이와는 높은 수준의 음의 상관관계가 있었고(r=-.932; p<.01). BMI에 대해서는 매우 낮은 수준의 양의 상관관계(r=.071)가 있었다. 반면 중년 여성의 경우엔 나이에 대해서만 높은 수준의 음의 상관관계(r=.940, p<.01)가 나타났고 BMI에 대해서는 상관관계가 나타나지 않았다. 본 연구는 CVA가 남성과 여성 모두에서 연령과 유의 한 음의 상관관계를 가지고 있지만, BMI와 낮은 수준의 상관관계를 가지고 있음을 시사한다.

• 정보교육학회논문지
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• 제24권1호
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• pp.39-48
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• 2020

본 연구는 2019년 12월에 발표한 OECD 국가들을 대상으로 한 PISA의 ICT 배경조사 자료를 분석하여 ICT 접근성과 각 교과별 활용도를 분석하는 것이다. 우리나라 학생들의 집에서는 ICT 접근성이 40.40%로 OECD 평균(43.01%)보다 조금 높은 17위이고, 학교에서의 접근성은 40.40%로 OECD 평균( 43.01%)이하인 21위이다. 이것은 3년 전의 최하위 그룹에서 중간 그룹으로 향상되었다. 9개의 교과의 수업시간에 학생들이 디지털 장비를 이용하는 비율은 2.96%로 OECD 평균(8.22%) 보다 매우 아래이고, 국가 순위는 31위이다. 이로써 국가가 인공지능 시대에 필요한 인재를 양성하기 위해서 교육정책의 변화가 필요하다는 것을 알 수 있다.

• 대한영양사협회학술지
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• 제25권3호
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• pp.199-216
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• 2019

We conducted this study to compare the awareness and attitude of Busan housewives about consuming marine products. The survey was conducted from April 10 to May 31, 2019 by using a questionnaire. The degree of preference of seafood was higher among individuals in their 40s than those in the other age groups. Among the women in their 30s, 40s, 50s and 70s, the reason for liking seafood was 'taste', and for those in their 60s it was 'nutrition'. Overall the most common reason for disliking seafood was the 'fishy smell (37.4%)'. Conception degree of nutritive value of seafood was higher among individuals in their 30s and 40s than that for those individuals in their 50s, 60s and 70s. As for the price of seafood, the wives over 40s thought seafood was more expensive than did those wives in their 30s. The younger the individuals were, the lower was the perceived degree of safety was 49.8% of the subjects reported that the main concern for purchase was 'freshness'. The perceived degree of safety for imported seafood was better for the wives in their 60s and 70s than that for those wives in their 30s, 40s and 50s. The confidence level for local Korean seafood was higher for the wives in their 60s than that for the wives in their 50s. The degree of preference for seafood was moderate overall, except for Jellyfish. Age was positively correlated with conception for safety and dietary attitude (P<0.01), whereas age was negatively correlated with monthly food expenditure, nutrition knowledge and intake requirements (P<0.01). Preference for seafood was positively correlated with conception for safety (P<0.05), nutrition knowledge (P<0.05), dietary attitude (P<0.01), awareness for nutritive value (P<0.01) and intake requirements (P<0.01). Laws and regulations should be reinforced in order to promote eating more seafood and periodic research to determine the actual amount of consumed seafood and people's preferences should be conducted.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제35권3호
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• pp.155-160
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• 2013

Purpose: The purpose of this study is to establish the acceptable intraoral application time of antiseptic agents and evaluate the effect of mechanical irrigation. Methods: A total of 80 subjects were selected for this study. Saliva secreted at the resting state was taken. The subjects were divided into 8 experimental groups, and kept 10% povidone-iodine (PVI) or 0.2% chlorhexidine gluconate (CHX) for 20 or 40 seconds in their oral cavity with/without irrigation of the oral cavity with sterilized normal saline, respectively. Then, the saliva was taken and diluted with phosphate buffered saline and then plated onto 5% sheep blood agar plates, which were incubated. Colony forming unit (CFU) was measured for the salivary bacterial counts. Results: After application of PVI and CHX, all the experimental groups showed statistically significant decrease in CFU (P<0.01). Group 2 (PVI, 40 s) showed more significant reduction rate in CFU than group 4 (CHX, 40 s; P<0.01). Group 6 (PVI, 40 s, irrigated) showed more significant reduction rate than group 2 (PVI, 40 s; P<0.01). Group 2 (PVI, 40 s) showed more significant reduction rate than group 1 (PVI, 20 s; P<0.01). Conclusion: Application of PVI for 40 seconds and mechanical irrigation with sterilized normal saline showed the best result among the 8 groups in terms of the reduction rate of salivary bacterial counts.

• 한국산학기술학회논문지
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• 제16권10호
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• pp.7219-7226
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• 2015

본 연구는 40대 기혼남녀의 성생활의 질(SQOL)을 8개의 인구학적 변인, 8개의 성과 관련된 변인, 6개의 부부 관계적 변인으로 구분하여 그 관계를 조사함으로서 중년 기혼남녀들의 성 건강증진을 위한 중재 프로그램의 기초자료를 구축하고자 시도되었다. 2015년 1월 19일부터 2015년 3월 5일에 걸쳐 서울의 강남 2곳과 강북 2곳의 건강검진센터 방문 대상자로부터 자료를 수집하였으며, 40세~49세까지의 기혼 남녀 187명의 설문지를 분석하였다. 본 연구결과 인구학적 변인 중에는 학력(p<.05), 건강상태(p<.001), 결혼기간(p<.01), 월평균 수입(p<.01) 변인이 성생활의 질에 유의미한 변인이었으며, 성 관련 변인 중에서는 성지식 정도(p<.01), 포르노 접촉(p<.001), 분만시 남편의 참여 여부(p<.001) 등의 변인이 성생활의 질에 유의미한 것으로 나타났다. 부부 관계적 변인 즉 배우자와의 갈등 유무(p<.05), 성생활의 빈도(p<.001), 배우자와의 애정강도(p<.001), 가족전체와의 화목도(p<.001), 부부간의 일반적 의사소통(p<.001) 및 성적 의사소통 정도(p<.001)에서는 6개의 변인 모두 성생활의 질에 유의미함을 보여 주어 결론적으로 성생활의 질을 높이는데 미치는 요인으로는 인구학적 또는 성관련 변인보다 부부 관계적 변인이 더 중요함을 보여 주었다.

• 대한한방내과학회지
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• 제40권4호
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• pp.567-581
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• 2019

Objective: This study aimed to evaluate the inhibitory effects of SGX01 on the lung injuries of COPD mice model. Materials and Methods: This study was carried out in two ways: in vitro and in vivo. In vitro, L929 cells were challenged with LPS, and then treated with six concentrations of SGX01 (10, 30, 50, 100, 300, and $500{\mu}g/ml$) and analyzed by ELISA. In vivo, C57BL/6 mice were challenged with LPS and cigarette smoking solution (CSS), and then treated with a vehicle only (control group), dexamethasone 3 mg/kg (dexa group), or a SGX01 200 mg/kg (SGX01 group). After sacrifice, the BALF or lung tissue was analyzed with Cytospin, FACS, ELISA, real-time PCR and H&E, and Masson's trichrome staining. Results: SGX01 significantly decreased NO, $TNF-{\alpha}$, and IL-6 on L929 cells challenged with LPS. In the COPD model, SGX01 significantly inhibited the increase of neutrophils, $TNF-{\alpha}$, IL-17A, CXCL-1, MIP2, CD8+ cells in BALF, and $TNF-{\alpha}$, $IL-1{\beta}$ mRNA expression in lung tissue. It also decreased the severity of the histological lung injury. Conclusion: This study suggests the usability of SGX01 for COPD patients by controlling lung tissue injury.

• 산업경영시스템학회지
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• 제6권8호
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• pp.35-40
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• 1983

The fusion frequency of flicker (F.F.F.) of 40 pupils were examined every day repeatedly, from Monday to Saturday. (1) The individual Variations of F.F.F. were statistically highly significant, p < 0.01 (2) Day to day Variations of F.F.F. were statistically highly significant, p < 0.01 (3) The interaction between age and weekly change was highly significant, p < 0.01 (4) The interaction between sex difference and weekly change was also significant, p < 0.01 (5) The interaction among age, sex and weekly change was significant at 1% level of significance.