This paper aims to examine the differential degree of the task difficulty presented in high school English activity books. To achive the aim, the researchers analyzed tasks for three levels(high, intermediate, and low) in five English activity books currently published based on the revised 7th National Curriculum for high school freshmen. The criteria utilized for grading task difficulty are modified from Ellis(2003a, 2003b) which were developed to account for task complexity in terms of input, conditions, processes and outcomes. The results revealed that in general, the tasks of the activity books were organized in the sequential order of difficulty from low, imtermediate to high proficiency, but the difference of task difficulty across the three proficiency levels was not significant. It was also discovered that among three main factors determining task difficulty, task condition, task process, and task outcomes, task process and required task outcomes were more frequently adopted to di fferentiate the task difficulty level. In addition, there was lack of communicative tasks integrating four language skills (listening, speaking, reading, and writing) in all the five activity books. Further study suggesiotns and limitations are followed.

최근 새롭게 등장하고 있는 구성주의 학습이론들은 기존의 전통적인 학습이론이 제공하지 못하는, 차별화된 학습자 중심 학습을 위한 교수설계적 시사점을 제공하고 있다. 따라서 이러한 구성주의 학습이론들은 현재 정보화 사회의 테크놀로지를 기반으로 하는 학습자 중심 학습에 적절하고 효과적인 실천적 방안을 제시할 수 있다. 특히, 학습자 주도적인 테크놀로지의 활용과 학습자의 자발적 참여를 위한 오락적 요소가 충분히 반영된 환경으로서 교육용 게임은 게임세대라 할 수 있는 지금의 학습 세대에게 적합한 학습자 중심 학습 환경이다. 따라서 교육용 게임의 설계를 위한 관점으로 구성주의적 학습 이론의 특성을 고찰하면서 설계 원리에 대한 시사점을 도출하는 연구가 필요하다. 본 연구는 구성주의 학습이론으로서 최근 부각되고 있는 활동이론, 분산인지, 생태심리학의 관점에서 이론적 배경이자 실천적 방안으로 교육용 게임의 설계 원리에 대한 시사점을 도출하고자 한다. 이것은 향후 학습자 중심 학습을 위한 상황별, 유형별 교육용 게임의 설계 원리를 구체적으로 탐색하는 데에 이론적 기반 및 논의점이 될 수 있을 것으로 기대한다.

목적 : 발달지연 아동을 위한 감각통합 가정프로그램을 개발하고 그 효과성을 검증하기 위한 것이다.연구방법 : 본 연구는 환자-대조군 연구 설계에 따라 연구 대상자는 서울시내 일개 3차병원 재활의학과에서 작업치료를 받는 7개월에서 36개월의 발달지연아동 80명으로 선정하여 가정프로그램을 제공받는 실험군에 32명, 가정프로그램을 제공받지 않는 통제군에 30명을 임의로 배정하였다. 감각통합 가정프로그램을 개발하여 보호자와 아동이 8주 동안 매일 1회 30분 동안 가정에서 실시하였다. 치료전후 집단 내 평균차이는 대응표본 T-검정, 집단 간 평균차이는 독립표본 T-검정을 실시하였다. 가정프로그램의 효과성을 검정하고 변수의 통제효과를 확인하기 위해서 위계적 다중회귀분석과 로지스틱회귀분석을 실시하였다.결과 : 가정프로그램을 제공받은 실험군과 통제군을 감각처리능력에 대한 평균값을 비교분석한 결과 감각등록에서 통계적으로 유의미한 차이가 났다. 이는 가정프로그램에 의해 중요하게 결정되는 변수라는 로지스틱 회귀분석으로 확인되었다.결론 : 작업치료사에 의해서 개발된 감각통합 가정프로그램은 발달지연 아동의 발달을 촉진시킬 수 있으며, 부모들이 가정에서 아동을 치료할 때 이용되어야 한다.

목적 : 연구의 목적은 우리나라 노인들의 문화와 정서에 적합한 활동척도를 개발하여 남녀 노인의 활동 수준과 의미 있는 활동을 비교하고, 노인의 삶의 질에 영향을 미치는 요인들의 관련성을 규명하였다. 연구방법 : 연구의 대상은 60세 이상 남자 노인 199명, 여자 노인 258명으로 총 457명이 참여하였으며, 노인생활만족척도를 사용하여 노인의 삶의 질을 평가하였다. 또한 노인의 활동수준은 평가를 위해 한국판 활동척도를 개발하여 연구에 이용하였다. 결과 : 노인의 수행 활동을 성별로 비교하여 볼 때 여자 노인은 수단적 일상생활을 남자 노인은 고강도 신체활동을 더 많이 하였으며, 노인의 활동과 삶의 질과의 상관관계를 통하여 남, 여, 전체 노인에서 수단적 일상생활, 저강도 신체활동, 고강도 신체활동, 사회활동에 많이 참여할수록 삶의 질은 높았다. 최종적으로 위계적 다중선형회귀분석을 통하여 노인의 삶의 질에 영향을 주는 요인으로는 전체 노인의 경우 연령, 건강상태, 생활수준, 노후설계 준비기간, 사회활동이, 남자 노인의 경우 건강상태, 배우자 유무, 생활수준, 노후설계 준비기간이 삶의 질을 예측할 수 있는 요인으로 작용하였으며, 여자 노인의 경우 연령, 건강상태, 생활수준, 노후 설계 준비기간, 사회활동이 삶의 질을 예측할 수 있는 요인으로 작용하였다. 결론 : 연구 결과를 토대로 남녀 노인에 적합한 성별에 따른 차별화된 활동을 개발하고 1차, 2차, 3차 예방 사업에 사회활동 요소를 포함하여야 할 것이다. 향후 전국 조사를 통하여 우리나라 노인들을 대상으로 활동 수준과 삶의 질과의 관련성을 규명할 수 있는 다양한 연구들이 수행되어야 할 것이며, 작업치료적 관점에서 장애 노인을 대상으로한 활동의 변화와 삶의 질에 대한 연구가 진행되어야 할 것을 제언한다.

This paper purports to investigate the statistical basic principles through "TRIZ-used 6-sigma integrated activity design" and further, to raise "the importance of measuring technical innovative activities based on 6-sigma integrated design methodology by organization". This paper intends to investigate how the activities of the best conditions, which are necessary for the stage of 6-sigma design, are chosen in the TPM-based 6-sigma integration activities. And it will examine the options, when used together with other technique, in the probability statistical methodology. Through the combination of the situations which are chosen when activity techniques, which are mostly used for production and technology, and 6-sigma integration activities are used together, it intends to practically use as the basic data for company standards.

본 연구에서는 ABC(Activity-Based Costing),활동기준원가를 설명하고, 한 업체를 대상으로 Cost structure를 파악하여, (ABC=based objective function value)를 최대화 하는 값을 찾아 이익을 최대화 시켜 기업가치를 향상시키고자 모형을 설계한다. 이를 위해 변수를 결정하고, 제약을 설정하게 된다. 이를 통해 수학적 모형을 완성 시뮬레이션을 통한 이익을 최대화 시키는 활동원가의 활동들을 규명한다.

The present study investigates the effects of teaching activity-based integrative reading and writing on the amelioration of written language in the elementary school classroom. This study was conducted during the first semester in 2003. The subjects were 160, 6th year elementary school students. They were divided into two groups, control and experimental. Both the control group and the experimental group were composed of 80 students each. Each group was divided into three levels: high, intermediate, and low, on the basis of a diagnostic evaluation. All the subjects of the experimental group were integratively taught reading and writing of the English alphabet, words, phrases, sentences, and context, according to their level. All the subjects of the control group were discretely taught reading and writing according to their curriculum and level. They were also given a questionnaire of affective and psychomotor domains. Statistical analyses were performed to determine: (a) the difference of the control and experimental groups, (b) the difference between the control and experimental groups, (c) the difference of their level (high, intermediate, and low) of the control and experimental groups on reading and writing in the pre- and post- achievement tests, and (d) the difference of the level of the control and experimental groups on the affective and psychomotor domains such as interest, self-confidence, understanding, participation, and motivation of reading and writing in the pre- and post- achievement tests. The results of this study reveal that significantly higher scores on the written language were obtained in the experimental group. The difference between the control group and the experimental group was not significant at the beginning of the term. However, the difference was significant at the end of the term. It was also found that in the experimental group, interest was improved at the intermediate level. Self-confidence and understanding were improved at the intermediate and low levels, and participation was improved at the low level. It is recommended that researchers and teachers develop integrative materials of reading and writing more widely according to the level.

In order to study the antitumoral effect of Selaginella tamariscina extracts, the cytotoxicities to human histiocytic leukemia cells (U937) and lymphocyte were measured by MTT method. The water extract of Selaginella tamariscina was partitioned into chloroform (CHCl₃), ethylacetate (EtAc), n-butanol (BuOH) and water (H₂O), successively. CHCl₃, EtAc and BuOH fractions of Selaginella tamariscina showed the cytotoxicity to the U937 cells but they had no effect on the cytotoxicity of lymphocyte under the same conditions. The tumor-specific cytotoxicity of Selaginella tamariscina fractions might have been attributed to their genotoxic effect on actively proliferating cells. The expression of p53 tumor suppressor gene was then evaluated by northern blotting. The increased expression of p53 was induced by Selaginella ramariscina fraction V but no expression of p53 was induced by CHCl₃, EtAc, and BuOH fractions of Selaginella tamariscina. These results suggested that the increased expression of p53 induced by Selaginella tamariscina water extract (fraction V) should be required for the cytotoxicity on U937 and the other fractions of Selaginella tamariscina mediated the U937 disruption.

Making use of our extended version of ¨ O p i k ′ s convection theory, we have calculated magnetic cycle periods of the sun and late type stars by using Parker's dynamo theory, where we have included the non-linear effect. We presented a relationship between the computed cycle period and spectral type to analyze observed magnetic activities of the late type stars and long-term luminosity variations. It is found that (1) the stellar magentic-cycle period increases towards the later spectral type, (2) the rapid rotation facilitates the activity-related luminosity variation of stars later than about K5, (3) differential rotation plays a critical role in determining the magnetic activity-cycle period, and (4) the non-local effect should be taken into account in order to understand the observed long-term luminosity variations.

A variety of microorganisms are contained in the groundwater and surrounding environment at the depth of a deep geological repository, and could adversely affect the integrity and/or safety of the facility under certain thermal, hydraulic and chemical conditions. In particular, microbial activity (in the buffer and backfill) around the canister can cause corrosion of the canister through sulfide production by sulfate-reducing bacteria (SRB), and subsequently promote radionuclide release through the corroded part. Namely, this phenomenon is important in a perspective of performance assessment since it will have an impact on the post-closure exposure dose in the biosphere by accelerating radionuclide leakage into the near-field due to deterioration of the canister integrity In Finland, the performance assessment on microbial activity in buffer, backfill, and plug was performed for the licensing. However, in Korea, researches relevant to microbial activity are only in the early stage as of now. Accordingly, in this study, we draw initial considerations for the performance assessment on the phenomenon in the domestic facility based on review results for the methodology carried out as part of operating license application (i.e. SC-OLA). Studies on the performance assessment of microbial activity in Finland were mainly performed: (a) to investigate complex interactions among microorganisms in the repository by analyzing both indigenous and exogenous microorganisms through drilling, geological and geochemical analysis, (b) to identify microbial interactions at the buffer, backfill, and host rock interface for specific microorganisms that may affect activity of other microorganisms and integrity of the repository, (c) to analyze canister corrosion caused by microbial activity, particularly sulfide production by SRB, and (d) to characterize microbial illitization of montmorillonite that could affect permeability, hydraulic conductivity, and structural integrity of the repository. From reviewing studies above, it is judged that studies labelled as (b) through (d) are applicable to the performance assessment of microbial activity for the domestic facility regardless of specific conditions in Korea. However, for study labelled as (a), the following data on reflecting domestic conditions should be additionally obtained: (1) radionuclide inventory and temperature in spent nuclear fuel, (2) swelling pressure and organic carbon content of bentonite, and (3) size, shape, and gas composition of pores in bentonite. Results of this study could be directly applied to the design and performance assessment for buffer and backfill components, provided that input data specific to the domestic disposal facility is prepared for the assessment required.

The main aim of the present study is to investigate the factors that are considered affecting the adoption of Activity-Based Costing (ABC) in the autonomous public universities in Vietnam. A quantitative research was carried out. The data was collected through an online questionnaire survey between June 2020 and September 2020 addressed to the target respondents comprising 168 managers and accountants from 23 autonomous public universities in Vietnam, which participated in the resolution project No. 77/NQ-CP of the Vietnamese government on the pilot renovation of operational mechanisms of public tertiary education institutions during the period of four years, from 2014 to 2017. The findings resulted from hypothesis testing by a binary regression analysis based on the SPSS 20.0 software show that training, competition, support of top manager, and university size are the four main factors that positively affect the adoption of Activity-Based Costing (ABC) in studied universities. On the other hand, no statistically significant impact was found on two other variables, namely the variety of services provided and the usefulness of cost information factors. From the research results, discussions and policy recommendations have been presented to promote the adoption of Activity-Based Costing (ABC) in Vietnamese autonomous public universities in the coming time.

오미약성 이론은 다섯가지 맛 중에서 적어도 하나 이상을 맛을 포함하는 다양한 허브로 구성되어 있으며, 이러한 이론은 인간의 질병을 예방하고 면역 체계를 강화하는데 사용되어왔다. 본 연구의 목적은 오미약성 이론에 근거한 단일 추출물 및 혼합 추출물의 효능 차이와 성분 변화를 확인하는 것이다. 황련, 승마 및 백복령 세가지 약초를 선택하였고 단일 추출물 및 혼합 추출물의 약리학적 효능을 평가하였다. 결과적으로 혼합추출물은 단일추출물과 비교하여 400 ug/mL 농도에서 우수한 세포 이동 효과를 보였다. 또한 혼합 추출물은 수지상세포의 활성을 증가시켜 면역을 강화시켰으며 DPPH assay 및 HPLC-ABTS assay를 통해 가장 높은 항산화 활성을 보였다. 이번 연구에서 우리는 한의학적 이론을 접목하여 화장품 및 의약품 분야에 응용 가능한 새로운 소재를 개발하였다.