• Journal of Korea Trade
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• 제25권1호
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• pp.133-151
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• 2021

Purpose - This study examines the effects of expatriate transfer on foreign affiliate's labor productivity. Design/methodology - Using Korean-owned foreign affiliate-level data, we estimate the effect of expatriate transfer on foreign affiliate's labor productivity using the system generalized method of moments model. We also consider foreign affiliate- and host country-specific contingencies and test how they are associated with expatriates in enhancing foreign affiliate's labor productivity. Findings - We consider foreign production intensity and cultural distance between the home (i.e., South Korea) and host countries as key contingencies that influence the effect of expatriates on foreign affiliate's labor productivity. We find that expatriates are effective in enhancing the labor productivity of less production-intensive foreign affiliates. This effect is strengthened as expatriates are deployed to countries that share cultural similarities with the home country. Originality/value - Considering that previous studies provide mixed results on the effect of expatriates, our findings suggest that foreign affiliate-specific operational orientation and cultural distance should be considered jointly to understand the true effect of expatriate staffing on foreign affiliate performance.

• 대한본초학회지
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• 제28권5호
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• pp.69-77
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• 2013

Objectives : The purpose of this study was to characterize the effect of the Ethanolic extract of Stachys sieboldii and Lycopus lucidus on the learning and memory impairments induced by scopolamine. Methods : The genetic difference of Stachys sieboldii and Lycopus lucidus were observed with RAPD analysis. The cognition-enhancing effect of Stachys sieboldii and Lycopus lucidus was investigated using a passive avoidance test, Y-maze test and the Morris water maze test in mice. Drug-induced amnesia was induced by treating animals with scopolamine (1 mg/kg, i.p.). Results : As a result of RAPD analysis, Stachys sieboldii and Lycopus lucidus Radix was found to be genetically different and The results of learning memory analysis showed that Stachys sieboldii extract-treated group (500 mg/kg, p.o.) and the tacrine-treated group (10 mg/kg, p.o.) significantly ameliorated scopolamine-induced amnesia based on the Passive avoidance Y-maze test and Water maze test. And these results are same manner in DPPH radical scavenger effect and Acetylcholineseterase inhibition effect. These results suggest that Stachys sieboldii extract maybe a useful cognitive impairment treatment, and its beneficial effects are depending on the origin plants. Conclusions : Commercially available Stachys sieboldii Radix consists of two original plant, one of them people misuse. To clarify the origin of the plant Memory tests were performed. These results suggest that 80% Ethanol extract of Stachys sieboldii showed significant anti-amnestic and cognitive-enhancing activities related to the memory processes, and these activities were parallel to treatment duration and dependent of the learning models.

• 한국산학기술학회논문지
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• 제13권9호
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• pp.4207-4213
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• 2012

소프트웨어의 품질은 요구사항 품질과 강하게 관계되어 있다. 이에 따라서 기업들은 요구사항의 품질을 향상시켜 주기 위한 노력을 하고 있다. 그러나 명세서 형태의 요구사항은 검증하기 어려우며, 분석가의 비정형화된 업무 지식에 의존해야 한다. 또한 명세서 형태의 요구사항 품질을 향상시켜 주기 위한 정형화된 방법론이나 자동화된 기법이 미흡한 상황이다. 본 논문에서는 요구사항의 품질을 향상시켜 주기 위한 요구사항 검증 프로세스 및 자동화 검증 도구를 제안한다. 검증을 위해 요구사항에 대한 외적뷰 설계와 내적뷰 설계를 비교한다. 사례연구를 통해 제안된 요구사항 자동화 검증 기법의 타당성을 검증한다.

• 동의생리병리학회지
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• 제17권3호
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• pp.684-692
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• 2003

The herbal extract(YMT_02) is a modified extracts from Yukmijihwang-tang(YMJ) to promote memory-enhancing. The YMJ extracts has been widely used as replenishing yin and tonifying the kidneys herbal medicine for hundred years ia Asian countries. The purpose of this study is to: 1) quantitatively evaluate the memory-enhancing effect of YMT_02 by passive avoidance test, 2) statistical evaluation of candidate gene expression (pentraxin. PEP-19, transthyretin) in rat hippocampus. The hippocampi of YMT_02 and control group were dissected and mRNA was further purified. After synthesizing cDNA using oligo-dT primer, the cDNA were applied to Real Time PCR. The results were as follows : 1) passive avoidance test showed enhancing memory retentin by YMT_02 treatment, 2) expression of pentraxin, that accelerate degenerating of neuronal cell, was significantly decreased, 3) the mRNA of genes that has been known to be associated with protecting neuronal cell degeneration, such as PEP-19 and transthyretin, were significantly increased upon YMT_02 treatment. From above results, the administration of YMT_02 which tonify the function of Kidneys could enhance the ability of memory and learning. In addition, the administration of YMT_02 enhance memory retention through modulating particular gene (pentraxin, PEP-19, transthyretin) expressions in hippocampu.

• 한국보육지원학회지
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• 제14권3호
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• pp.21-39
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• 2018

Objective: This study was to examined the mediating effect of active emotion regulation and marital quality in the relationships between self-compassion and maternal-fetal attachment. Methods: A questionnaire was administered to 836 pregnant women and the data were analyzed by SPSS21 and M-plus7, and statistical analysis, frequency analysis, and then structural equation modeling were performed. Results: First, self-compassion directly affects maternal-fetal attachment. Second, self-compassion was indirectly influenced by maternal-fetal attachment through active emotional regulation. Third, self-compassion indirectly affects maternal-fetal attachment through marital quality. Fourth, in regards to the relationship between self-compassion and maternal-fetal attachment, active emotional regulation and marital quality were mediated. Conclusion/Implications: we discussed implications for enhancing self-compassion and active emotional regulation and enhancing marital quality to increase the maternal-fetal attachment of pregnant women.

• 한국간호교육학회지
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• 제13권2호
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• pp.184-191
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• 2007

Purpose : The purpose of this study was to examine the effect of a neurofeedback training on developing creativity in nursing students. Method : A nonequivalent control group pre-posttest design was used. A convenience sample of 36 students from the Department of Nursing, at D University were assigned to experimental(n=18) and control(n=18) groups. The intervention program was Neurofeedback training for 6 weeks, 3 times a week. Outcome variables were fluency, flexibility, originality, and creativity overall. Result : Neurofeedback training was effective in enhancing flexibility and creativity overall, but was not effective in enhancing fluency and originality. Conclusion : Neurofeedback training may be a useful intervention to promote creativity of nursing students.

• 대한본초학회지
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• 제27권5호
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• pp.27-35
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• 2012

Objectives : The purpose of this study was to characterize the effect of the fraction of Taraxacum officinale and T.coreanum on the learning and memory impairments induced by scopolamine. Methods : The cognition-enhancing effect of Taraxacum officinale and T.coreanum was investigated using a passive avoidance test, the Morris water maze test and Y-maze test in mice. Drug-induced amnesia was induced by treating animals with scopolamine (1 mg/kg, i.p.). Results : The results showed that the Aug harvested T.offiicinale extract-treated group (200 mg/kg, p.o.) and the tacrine-treated group (10 mg/kg, p.o.) significantly ameliorated scopolamine-induced amnesia based on the Passive avoidance Y-maze test and Watermaze test. And these results are same manner in DPPH radical scavenger effect and Acetylcholineseterase inhibition effect. Conclusions : These results suggest that Taraxacum officinale extract maybe a useful cognitive impairment treatment, and its beneficial effects are depending on the collecting time and origin plants. As a result, Taraxacum officinale harvested in August improve memory most.

• 동의신경정신과학회지
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• 제22권4호
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• pp.185-199
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• 2011

In the present study, we assessed the effect of the PPA (Polygala japonica Houtt., Polygala tenuifolia WILLD. and Acorus gramineus SOLAND. mixed preparation), a traditional herbal prescription, on the learning and memory impairments induced by scopolamine. The cognition-enhancing effect of PPA was investigated using a passive avoidance test, Y-maze test and the Morris water maze test in mice. Drug-induced amnesia was induced by treating animals with scopolamine (1 mg/kg, i.p.). A single PPA (400 and 800 (mg/kg)) administration significantly reversed the scopolamine-induced cognitive impairments in the passive avoidance test (P<0.05). On the Y-maze test, PPA (400 and 800 (mg/kg)) also significantly reversed scopolamine-induced cognitive impairments in mice (P<0.05). PPA also improved escape latencies in training trials and increased swimming times and distances within the target zone of the Morris water maze (P<0.05). These results suggest that PPA attenuates amnesic state induced by scopolamine and that these Effect are mediated by enhancing the cholinergic dysfunction.

• 대한핵의학회:학술대회논문집
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• 대한핵의학회 2000년도 2nd Korea-China Congress of Nuclear Medicine and 39th Annual Spring Meeting if the Korea SOciety Nuclear Medicine
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• pp.80.2-80.2
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• 2000

• 한국영양학회:학술대회논문집
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• 한국영양학회 2003년도 추계학술대회 및 정기총회
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• pp.74-74
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• 2003