• 아동학회지
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• 제27권6호
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• pp.263-276
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• 2006

This study examined the relationship between children's temperament and their early vocabulary acquisition. Mothers of 317 toddlers (18 months of age) completed the Toddler Temperament Scale(Bak, 1996) and a vocabulary checklist(Pae, 2002). Results showed that mood, adaptability, and activity were associated with vocabulary acquisition. Specifically, infants rated as having a positive mood and low activity level acquired more expressive words. On the other hands, infants rated as easily adaptive and low activity level acquired more receptive words. These results suggest that different components of temperament may influence the way in which toddlers acquire vocabulary.

• 아동학회지
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• 제12권2호
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• pp.51-66
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• 1991

The purpose of study I was to investigate developmental processes and sex differences in the acquisition of topological seriation and Euclidean horizontal/vertical concepts. The purpose of Study II was to investigate the effects of basic geometric activity on the acquisition of space concepts. The subjects of Study I were 164 five- and six-year-old children. The children were grouped by age in 6 month units. The subjects of Study II were 45 children who showed immature space concepts. The data were analyzed by two-way ANOVA, $Scheff{\acute{e}}^{\prime}s$ posthoc test, and paired comparison t-test. On Study I, significant differences were found among the age groups in each of the dependent variables. Sex differences were found on all tasks except cued Euclidean tasks. In Study II, basic geometric activity of 3 weeks duration was found to be effective in the acquisition of the horizontal/vertical concepts in children whose space concept had been immature.

• 한국어교육
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• 제25권1호
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• pp.29-52
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• 2014

The purpose of this paper is to suggest a discourse analysis activity that can be used in the stage after performing tasks in task-based Korean speaking class and show its pedagogical advantages. A discourse analysis activity is an metadiscourse activity in which learners speak what they have spoken. By analyzing discourse and performing tasks again, learners can enhance their fluency and accuracy, make their knowledges in target language more stable and extend them, and develop problem solving skills. Consequently, this facilitates learners' acquisition of Korean language. This paper reviewed theoretical background of proposing discourse analysis activity, suggested the pedagogical advantages of the analysis, and examined discourse analysis activity in Korean speaking class. And it included the discourse sample of learners in actual class.

• 감성과학
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• 제21권4호
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• pp.63-76
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• 2018

본 연구의 목적은 스마트 헬스케어를 위해 접촉식 직물전극의 구조가 심장활동 신호 획득에 미치는 영향을 연구하는 것이다. 본 연구에서는 심장활동 신호 측정을 위하여 전극의 크기와 구성방식을 조작한 6종의 접촉식 직물전극을 컴퓨터 자수 방식으로 구현하였고, 이를 가슴밴드에 부착하여 응용형 리드 II(modified Lead II) 방식으로 심장활동 신호를 검출하였다. 건강한 신체의 남성 4명을 대상으로 서서 정지한 자세에서 각 직물전극을 사용하여 심장활동 신호를 검출하였으며, 모든 유형의 전극에 걸쳐 4회씩 반복측정 하였다. 심장활동 신호의 수집을 위해 BIOPAC ECG100 장비를 사용하여 1 kHz로 샘플링하였으며, 검출된 원 신호를 대역통과 필터를 사용하여 필터링하였다. 직물전극의 구조에 따른 심장활동 신호 획득의 성능을 비교하기 위하여 신호의 파형과 크기를 파라미터로 하여 정성적 분석을 실시하였고, 각 전극을 통하여 획득된 심장활동 신호의 SPR(signal power ratio)을 산출함으로써 정량적 분석을 실시하였다. 산출된 SPR 값을 대상으로 하여 비모수 통계분석 방식의 차이검정과 사후검정을 실시함으로써 6개 전극의 구조에 따른 심장활동 신호 획득의 성능 차이를 구체적으로 분석하였다. 연구 결과 접촉식 직물전극의 구조에 따라 심장활동 신호의 품질에는 정성적, 정량적 측면에 걸쳐 모두 주요한 차이가 있는 것이 고찰되었다. 접촉식 직물전극의 구성 측면에 있어서는 입체전극이 평면전극에 비해 더 우수한 품질의 신호가 검출되는 것으로 나타났다. 한편 3가지 전극 크기에 따른 심장활동 신호 획득의 유의한 성능 차이는 발견되지 않았다. 이러한 결과는 심장활동 신호 획득을 위한 접촉식 직물전극 구조의 두 가지 요건 중 구성방식(평면/입체)이 웨어러블 헬스케어를 위한 심장활동 신호 획득의 성능에 주요한 영향을 미치는 것을 시사한다. 본 연구 결과를 기반으로 후속 연구에서는 직물전극이 일체형으로 통합된 의복형 플랫폼을 구현하고 성능 고도화 방안을 연구함으로써, 시공간의 제약 없이 고품질의 심장활동 모니터링이 가능한 스마트 의류 기술을 개발하고자 한다.

• 유통과학연구
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• 제12권5호
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• pp.15-26
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• 2014

Purpose - This study addresses an acquisition's impact on a firm's strategic relationship based on findings of existing academic studies and theoretical assertions. Through examining existing research results and theoretical grounds for an acquisition's impact on various stakeholders, this study indirectly approaches the impact on stakeholders including alliance partners. Research design, data, and methodology - This research identified a variety of related theoretical foundations and empirical studies. Research objectives of prior studies mainly focused on merging firms and direct participants of acquisition activity. In addition, academic attention on the impact on rival firms has recently been growing. However, little research on alliance partners was found. Prior studies simultaneously employed event study methodology and cross-sectional analysis to make further theoretical contributions. Results and Conclusions - Based on the findings of prior studies, this research proposed a complementary research model for future academic inquiry into the impact of an acquisition on an alliance partner's return and for predicting an acquisition announcement's effect on alliance partners.

• Journal of Information Science Theory and Practice
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• 제4권3호
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• pp.28-42
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• 2016

Smartphones have become one of the most prevalent information devices in the current information environment. Although many people use smartphones for communication and information acquisition, these two functions are closely related and cannot be separated. However, many studies have focused on identifying each function of a smartphone independently. There are few studies that investigate the relationships between communication and information acquisition functions on smartphones. This research empirically analyzed and identified the relationships between these two functions of smartphones by conducting a survey. The results of the analysis showed that the activities for information acquisition make differences in communication on a smartphone. People who want to acquire more information tend to use a smartphone for communication purposes. Besides, communication activities on a smartphone also affect the acquisition of information. In addition, communication activities on a smartphone also affect the establishment of interpersonal relationships that lead to the acquisition of more information. From these results, it is identified that communication activities and information acquisition are interrelated when satisfying the information needs of smartphone users. Especially, communication activities on a smartphone positively affect people's information activities and enhance information acquisition.

• 한국도서관정보학회지
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• 제14권
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• pp.217-240
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• 1987

The purpose of this study is to analyse the current theses acquisition in university libraries and to suggest some useful findings for the more efficient acquisition of the theses. The results of the study can be summarized as follows (1) Depositary copies of each thesis in the libraries should be increased. (2) Under cooperative efforts, libraries must establish the exchange system of the theses by region or subject or characteristics of universities. (3) Each library should set up concrete selection criteria for the receiving of theses. (4) Development of purchase system would be necessary for economic and prompt acquisition of theses. (5) Theses should be microformed so as to save their storage space. (6) To give su n.0, pport to effective acquisition activity, various bibliographies about theses should be published.

• Educational Technology International
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• 제13권1호
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• pp.207-231
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• 2012

The purpose of this study is to analyze the effects of Critical Thinking Strategy supporting argumentation activities between learners. The research question is whether the form of Critical Thinking Strategy offered to support meaningful interaction of collaborative argumentation between learners influences the knowledge acquisition, learning outcome, and student satisfaction. For this, the collaboration outcome of the group, the level of individual knowledge acquisition, the level of students satisfaction were measured as outcome of argumentation activity and their differences analyzed. This study concludes the following: A comparison of the group that was provided with Critical Thinking Strategy (test group) and the group provided with general argumentation scaffolds (compared group) showed there wasn't statistically significant differences in the quality of the learning outcome of collaboration between the groups and in students satisfaction. But there was significant difference in the degree of individual acquisition depending on the offering of scaffolding for Critical Thinking. Therefore, as premised in this study, supporting meaningful mutual interaction between learners during collaborative argumentation using Critical Thinking Strategy has a positive influence on the individual acquisition of domain knowledge. The group provided with scaffolding for Critical Thinking gained higher effect in the degree of knowledge sharing and individual acquisition of domain knowledge compared to the group provided with general argumentation scaffolding.

• 벤처창업연구
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• 제15권4호
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• pp.175-192
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• 2020

본 연구는 중소기업 종사자를 중심으로 양면적혁신활동을 매개변수로 하여 기업의 동적역량이 기업성과에 미치는 영향에 관하여 분석하였다. 동적역량의 하위변수를 기회탐색역량, 자원획득역량 및 자원재구성역량으로 구분하였다. 수도권에 거주하는 중소기업 종사자들로부터 수집한 설문지 282부를 실증분석에 사용하였다. SPSS v22.0과 Process macro v3.4를 사용하여 병렬다중매개모형을 기반으로 분석하였다. 분석결과 첫째, 기회탐색역량과 자원획득역량이 양면적혁신활동에 정(+)의 유의한 영향을 미치는 것으로 나타났고 자원재구성역량이 양면적혁신활동에 미치는 영향은 유의하지 않은 것으로 나타났다. 둘째, 양면적혁신활동이 기업성과에 유의한 영향을 미치는 것으로 나타났다. 셋째, 기회탐색역량과 자원획득역량이 기업성과에 정(+)의 유의한 영향을 미치는 것으로 나타났고 자원재구성역량과 기업성과 간의 인과관계는 없는 것으로 나타났다. 넷째, 양면적혁신활동은 기회탐색역량과 기업성과 간을 매개하는 것으로 나타났다. 다섯째, 양면적혁신활동은 자원획득역량과 기업성과 간을 매개하는 것으로 나타났다. 여섯째, 양면적혁신활동은 자원재구성역량과 기업성과 간을 매개하지 않는 것으로 나타났다. 후속 연구로는 본 연구에서 사용된 매개변수 외에 제 3의 매개변수 발굴과 이를 통한 직렬매개모형 분석과 조절변수가 동시에 포함된 조건부과정 모형을 도입하여 조절된 매개분석을 위한 연구가 필요할 것으로 여겨진다.

• 대한본초학회지
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• 제22권4호
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• pp.51-58
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• 2007

Objectives : Investigation of the memory and cognitive enhancing effect of HT008-1 in scopolamine induced amnesia mice. Methods : At 60 min before acquisition trials, HT008-1 (30, 100, 300 mg/kg p.o.) was administered, and 30 min later, mice were injected with scopolamin (1.0 mg/kg, i.p.). In the passive avoidance test, acquisition trials were carried out 30 min after a single scopolamine treatment. Retention trials were carried out 24h after acquisition trials. Y-maze test was carried out 30 min after a single scopolamine treatment. Spontaneous alternation behavior during an 8-min session was recorded. Inhibitory effects of HT008-1 (0.01, 0.1, 1.0 mg/ml) on AChE activity was measured. Result : HT008-1 ameliorated scopolamine-induced learning impairments and spatial cognitive function in passive avoidance and Y-maze test, respectively. Moreover HT008-1 showed a significant inhibitory effect on AChE activity. Discussion: This study presented that eMultiherb mixture HT008-1 enhanced learning memory and spatial cognitive function in scopolamine-induced amnesia mice. These results suggest that the effect of HT008-1 may be dependent on the inhibition of AChE activity.