• 한국사회정책
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• 제24권1호
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• pp.187-211
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• 2017

본 연구는 생태체계적 관점에서 아동의 외체계에 해당하는 지역사회가 아동방임(neglect) 및 학대(abuse)에 미치는 영향력을 살펴보고자 하였다. 이를 위하여 아동청소년패널 초등학교 1학년 패널의 5차년도 자료와 통계청 자료를 분석에 이용하였다. 주요 연구결과와 그에 따른 함의를 살펴보면 다음과 같다. 첫째, 아동학대의심사례 발생율이 높은 지역사회에 거주하는 아동은 방임 수준을 높게 지각하는 것으로 나타났다. 둘째, 아동이 지각하는 방임 수준은 지역사회의 특성과 관련이 있었는데, 거주하는 지역의 수급자 비율이 높을수록 방임 수준을 높이 지각하였으며 이동인구 비율이 높거나 아플 때 도움 받을 사람이 있다고 응답한 비율이 높은 지역사회에 거주할 때 지각하는 방임 수준이 낮았다. 셋째, 아동이 지각하는 방임 수준은 아동 개인, 가구 요인, 지역사회 요인을 통해 설명되었으나, 학대 수준은 아동 개인 및 가구 요인을 통해서만 설명되었다. 연구결과를 통해 아동방임 예방을 위한 공동체 구축과 같은 지역사회 개입의 필요성을 제시하였으며 추후 연구 방향을 제안하였다.

• 수산해양교육연구
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• 제24권6호
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• pp.845-853
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• 2012

To investigate the role of temperatures and photoperiods as environmental cues regulating reproductive rhythm in Pseudobagrus fulvidraco, rearing experiments were conducted using sveral rearing regimes conbined with photoperiods and water temperatures during gonadal degeneration periods. Gonadosomatic index (GSI) in control was $8.16{\pm}1.50%$, while in other experiment GSI levels in female were lower than that in the control. In case of experimental precinct of 9 light (L) and 15 L, GSI levels were decreased. But GSI level with $20^{\circ}C$ was no diffrence after 40 and 60 days. GSI level in male of control was $0.35{\pm}0.05%$. GSI under 9 L and $25^{\circ}C$ was similar to that in control, whereas its level in other experiments was lower than that in control. Testosterone (T) of female was $3.68{\pm}0.22$ ng/mL at experimental precinct. In case of 9 L and 15 L, concentration of T were lower than experimental precinct in all of water temperature. Estradiol-$17{\beta}$ ($E_2$) and $7{\alpha}$, $20{\beta}$-dihydroxy-4-pregnen-3-one ($17{\alpha}20{\beta}OHP$) levels of female were $0.42{\pm}0.02$ and $0.83{\pm}0.01$ ng/mL at experimental precinct. $E_2$ levels of 9 and 15 L were higher than experimental precinct and $17{\alpha}20{\beta}OHP$ levels of 9 and 15 L were higher than experimental precinct. In case of T and 11-ketotestosterone levels were $0.69{\pm}0.11$ and $.62{\pm}0.03$ ng/mL in male. During the period of gonadal degeneration, gonadal maturation did not occur in any of the experimental regimes. However, comparatively high levels of $E_2$ observed at low temperature regimes ($20^{\circ}C$) regardless of photoperiods.

• Asian-Australasian Journal of Animal Sciences
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• 제32권3호
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• pp.437-441
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• 2019

Objective: Paraoxonase 1 (PON1), a calcium-dependent serum enzyme, has been shown to be involved in lipid metabolism. In this study, we examined the putative correlation of the serum PON1 level of Hanwoo, Korean native cattle, with gender and meat quality grade. Methods: PON1 levels were estimated by determining the arylesterase and paraoxonase activities (AE and PO, respectively) in serum samples from Hanwoo individuals (n = 56). Serum PON1 levels were analyzed in different gender groups (female [n = 21], castrated male [n = 17], and male [n = 18]), and meat quality grades (${\geq}1$ [n = 23], 2 [n = 21], and 3 [n = 12]). Results: Serum PON1 levels were similar in female ($AE=120{\pm}55U/mL$, $PO=84{\pm}43mU/mL$) and castrated male ($123{\pm}44U/mL$, $PO=89{\pm}30mU/mL$), while male showed a significantly lower level ($AE=65{\pm}43U/mL$, $PO=44{\pm}34mU/mL$). Furthermore, analysis of serum PON1 levels in three different grades of meat quality showed similar levels in the grades ${\geq}1$ ($AE=118{\pm}49U/mL$, $PO=84{\pm}37mU/mL$) and 2 ($AE=116{\pm}54U/mL$, $PO=82{\pm}43mU/mL$), while the level was significantly lower in the grade 3 ($AE=58{\pm}35U/mL$, $PO=39{\pm}27mU/mL$) of lower meat quality. Conclusion: We discovered the gender-dependent differences in serum PON1 levels of Hanwoo and a positive association of the serum PON1 level with meat quality. Results in this study suggest that PON1 would be a useful serum marker for preliminary screening of Hanwoo individuals with high-quality meat and applicable for genetic improvement.

• 한국과학교육학회지
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• 제11권2호
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• pp.161-178
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• 1991

This study was designed to investigate the effect of test anxiety, intelligence, and item arrangement order on test performance in Earth Science. The main purposes in this study were to investigate (1) (2) (3) (4) on test performance.: (1) the effect of test anxiety components on test performance in Earth Science. (2) the effect of item arrangement order on test performance in Earth Science. (3) the effect of test anxiety This study was designed to investigate the effect of test anxiety, intelligence, and item arrangement order on test performance in Earth Science. The main purposes in this study were to investigate (1) (2) (3) (4) on test performance.: (1) the effect of test anxiety components on test performance in Earth Science. (2) the effect of item arrangement order on test performance in Earth Science. (3) the effect of test anxiety components on test performance in Earth Science according to learner's intelligence levels. (4) test effect of item arrangement order on learner's intelligence. The hypothesis was that there is difference among test achievements scores according to (1) test anxiety-worry levels. (2) item arrangement orders. (3) item arrangement orders on test anxiety-worry levels. (4) test anxiety-worry levels on intelligence levels. (5) test anxiety-emotionality levels. (6) item arrangement orders on test anxiety-emotionality levels. (7) test anxiety-emotionality levels on intelligence levels. (8) item arrangement orders on intelligence levels. The test items selected for this study were derived from the text Science (part 1) first grade of high school. The subjects of this study were 164 of high school first grade boy students in Pusan. They were assigned to one of the three groups, according to test anxiety levels.: (1) upper 25% of total subjects designated to high group (2) middle 50% (3) low group, lower 25% of total subjects And according to LQ. (1) upper 25% of total subjects designated to high group. (2) middle 50%. (3) low group, lower 25% of total subjects Analysis of variance was used in this study for hypothesis examination. The dependent variable was the achievement scores of Earth Science test and independent variables were test anxiety(worry, emotionality) level, LQ. level, item arrangement orders. The principal findings of the present study are as follows: (1)Test achievement score trend decreases as the test anxiety (worry, emotionality) increases although the result is not statistically significant. (2)There is no significant difference among test achievement scores according to item arrangement orders. (3)The higher the LQ. is, the more effective test anxiety. And the LQ. has significant interaction effect with test anxiety. (4)There is significant interaction effect between the LQ. levels and itemqr arrangement orders.

• 아동학회지
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• 제25권2호
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• pp.93-108
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• 2004

This study investigated personality and environmental variables influencing peer bullying by sex and by differences between bullies, victims, bully-victims, and normal children. Findings were that the proportion of the total sample involved in peer bullying was 47.88%. Of the bullying children, 38.15% were bully-victims, followed by victims and bullies. The bullying of both boys and girls was influenced by exposure to violence, delinquent friends, and peer support. Bullies had higher levels of aggression and exposure to violence than normal children and higher levels of peer support than victims. Victims had higher levels of delinquent friends and exposure to violence than normal children. Bully-victims showed higher levels of aggression, immaturity, delinquent friends, exposure to violence and lower levels of peer support than normal children.

• 대한가정학회지
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• 제40권11호
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• pp.55-69
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• 2002

The purpose of this study is to examine the gender differences in the level of work/family spillover and factors explaining the spillover. Data are gathered from 1,236 Korean men and women aged between 30 to 59, using the structured questionnaire. The main results of this study are as follows. First, both men and women perceive moderate levels of negative and positive spillover from work to family. Second, the levels of negative family to work spillover are higher than then of positive family to work spillover. Third, men report higher levels of positive family to work spillover, but lower levels of negative family to work spillover than women. Sander differences in the levels of negative and positive spillover from work to family are not found. Fourth, only job characteristic factors are associated with four types of spillover of women, while the level of household labor sharing and spousal support are associated with work family spillover of men. Band on these findings, theoretical implications in terms of work-family research and gender norms are discussed.

• Biomolecules & Therapeutics
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• 제18권3호
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• pp.257-261
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• 2010

While it's been shown that arsenic impairs male reproductive function, it remains unclear whether the mechanism involves an effect on testosterone (T) production. We examined plasma T and luteinizing hormone (LH) levels in mice given water containing either 20 or 40 mg/L sodium arsenite (SA). The plasma T levels were lower in SA-treated mice than in controls and correlated well with testicular T levels within individuals. However, SA treatment did not significantly affect plasma LH levels. The ratio of plasma T to LH was reduced by the treatment with 40 mg/L SA. These results suggest arsenic-induced defect in testicular testosterone production in mice.

• Journal of Nutrition and Health
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• 제34권4호
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• pp.393-400
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• 2001

We examined the relationship between plasma folate and total homocysteine(Hcy) levels and the distribution of plasma folate and Hcy levels from 204 Korean adults(113 men and 91 women aged between 20yr and 69yr). Plasma folate levels were significantly lower in men(12.2nmol/L) than in women(14.6nmol/L) after controlling for smoking and drinking(p<0.05). Plasma Hcy levels were significantly higher in men(13.9$\mu$mol/L) than in women(11.8$\mu$mol/L) after controlling and drinking. Plasma Hcy levels were more more strongly correlated with plasma folate in women(${\gamma}$=-0.321, p<0.05) than in men(${\gamma}$=-0.202, p<0.05), but the difference between men and women was no longer statistically significant controlling for plasma folate concentration. Prevalence of mild homocysteinemia(plama Hcy>15$\mu$mol/L) was greatest among subjects with lowest folate status. These results indicate a strong association between plasma Hcy concentration and folate status and the poor folate status is the strong causative factor of mild homocysteinemia. (Korean J Nutrition 34(4) : 393~400, 2001)

• Journal of Nutrition and Health
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• 제24권6호
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• pp.516-525
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• 1991

In order to investigate whether serum Cu, Zn and Cu/Zn ratio are the useful indicater for the diagnosis of cancer. serum Cu and Zn levels were determined from 35 normal subjects and 33 stomach cancer patients by Atomic absorption spectrophotometer. The following results are obtained : Serum copper levels of stomach cancer patients were significantly increased than the those of the normal controls. whereas serum Zn levels significantly decreased than those of the normal contros(P<0.01) Therefore the copper to zinc ratio revealed a significant in the serum Cu and Zn levels. The serum protein and albumin levels were significantly lower in cancer patients(P<0.01) And the correlation analysis indicated that there was no significant correlation between serum Cu/Zn ratio and protein or albumin. These data suggest that the serum Cu. Zn and Cu/Zn ratio may be used as a diagnostic test in stomach cancer patients.

• Food Science and Biotechnology
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• 제16권1호
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• pp.142-145
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• 2007

The levels of citrinin and monacolin K in ten commercial Korean Monascus fermentation products were determined. The products contained citrinin at levels ranging from 0.64 to $112.27\;{\mu}/kg$, with only 2 exceeding the limit of $50\;{\mu}g/kg$ set by the Korea Food and Drug Administration (KFDA). The levels of monacolin K ranged from 0.87 to 1,030 mg/kg, however 6 products contained monacolin K at levels lower than 500 mg/kg, the level required by KFDA to be claimed as a functional food. Therefore, many commercial Korean Monascus fermentation products should be considered safe, however many need to be improved before being considered as functional dietary supplements.