Background: Generally, rounded shoulders may occur when an individual habitually takes a relaxed, slouched posture. Although various studies on the round shoulder exist, studies on the effect of improvement of thoracic mobilization on the round shoulder are insufficient. Objectives: To investigate the effect of thoracic mobilization on round shoulders and pulmonary capacities. Design: Randomized controlled trials. Methods: Twenty subjects were randomly allocated into an exercise group (n=10) and a mobilization group (n=10). To quantify the round shoulder before and after the intervention, the distance between the acromion and the table surface was measured, and the pulmonary capacities were also measured. The intervention program was conducted twice a week for 6 weeks. The exercise group performed corrective exercise, and the mobilization group performed both corrective exercise and thoracic mobilization. Results: The round shoulder in both groups was significantly decreased (P<.05), and the pulmonary capacities were significantly improved (P<.05). However, there was no significant difference between the two groups (P>.05). Conclusion: The combination of corrective exercise with stretching and strengthening exercises led to the improvement of round shoulders and pulmonary capacities, no additional benefits were detected with thoracic mobilization.

Multiple sorptive sites on natural illitic clays (e.g., frayed edge [FES], type II [TS], and planar sites [PS]) play an important role to diverse 137Cs immobilization in soil and aquifer environments. This study investigated the Cs sorption capabilities of 10 natural illitic clays at ranged Cs concentrations (1 ×10−7 to 1×10−3 mol·L−1) under various competing potassium concentration (distilled water to 1×10−1 mol·L−1). Additionally, multisite cation exchange model was performed to evaluate the best-fit sorption model and optimize the sorption capacities and affinities of multiple sorptive sites for Cs. Here, the experimental Cs sorption isotherms varied among 10 illtic clays, indicating different sorption capacities of Cs on illitic clays. The best-fit sorption model exhibited that variable Cs sorption of 10 illitic clays was significantly related to the sorption capacities at the FES (1.76 × 10−5 to 1.12×10−4 eq·kg−1), TS (1.59×10−3 to 9.76×10−3 eq·kg−1), and PS (2.14×10−2 to 1.51×10−1 eq·kg−1), respectively. The FES predominantly contributed to Cs sorption at low aqueous concentrations, whereas the TS and PS sorbed Cs at high concentrations. These sorption capabilities of multiple sorptive sites were correlated to illite contents and crystallinity of illitic clays, implicating that such parameters could be key factors to predict the Cs sorption for natural illitic clays in soil and aquifer environments. Finally, 1-D transport simulations represented that the severe Cs retardation occurred at low Cs concentration, implying that the FES predominantly affected to Cs transport in actual radioactive contamination sites (i.e., where low Cs concentration prevails), compared to the TS and/or PS.

2016년 초･중등학교에서 한자교육을 선택적으로 받도록 한 국어기본법의 위헌 확인 헌법소원이 각하되었고, 2018년 교육부는 ‘교과용 도서 개발을 위한 편수자료’를 공지하면서 이전 정부에서 추지하였던 초등학교 교과서의 한자 병기 정책을 사실상 폐지하였다. 이에 따라 초등학교에서는 정규 교과의 학습 시간에 한자교육을 명시적으로 수행하기 어렵게 되었으며, 한자 교육은 창의적 체험활동 시간을 활용하여 학습할 수 있게 되었다. 이러한 실정으로 본고에서는 각 교과의 교육과정을 수행하면서 잠재적 교육과정으로 한문 고전을 활용한 한자 수업에서 전통적 가치관 교육의 실행 방안을 논의하였다. 학습자에게 전통적 가치관을 교육시키기 위해서는 학습자 스스로 전통적 가치가 담겨있는 여러 고전들을 읽고 그 의미를 탐색하여 스스로 성찰하도록 하여야 한다. 그러나 선인들의 전통적 가치관 을 추출할 수 있는 자료들은 대부분 한문으로 기록되어 있고 초등학교 학습자들은 한문으로 기록된 자료들을 읽을 수 없는 것이 현실이다. 따라서 본고에서는 전통적 가치가 담긴 고전을 번역하여 우리말로 풀이한 서사 텍스트를 활용하여 교육하는 방법을 논의하였다. 본고에서 전통적 가치가 담긴 서사 텍스트로 활용한 자료는 ≪삼국유사≫와 ≪삼국사기≫이다. 우리의 선조들이 동몽들의 덕성교육용 교재로 사용했던 ≪명심보감≫, ≪동몽선습≫, ≪격몽요결≫ 등과 같은 자료들이 사람의 본성이나 오륜의 도리, 처세의 원칙 등 유교의 전통 가치를 잘 담고 있어서 전통적 가치관의 교육 자료로 더 적절할 수 있겠으나 현재의 초등학교 교실 수업 현장을 고려할 때 위의 교재를 활용하기에는 많은 어려움이 있다. 그러므로 본고에서는 초등학교 학습자들이 서사 구조를 지닌 이야기를 들을 때 흥미를 가지고 수업에 참여한다는 사실에 주목하여 전통적 가치관을 담을 수 있는 서사 텍스트로서 ≪삼국유사≫와 ≪삼국사기≫의 일화 들을 선정하여 논의를 전개하였다. 2015 초･중등학교 교육과정은 홍익인간의 교육이념과 인격도야, 민주시민으로서의 자질 함양, 인간다운 삶의 영위, 민주국가의 발전과 인류공영의 이상 실현이라는 교육 목적을 이루기 위해 4가지 인간상을 제시하였다. 4가지 인간상은 자주적인 사람, 창의적인 사람, 교양 있는 사람, 더불어 사는 사람이다. 또한 2015 초･중등학교 교육과정은 교육과정이 추구하는 인간상을 실현하기 위해 교과 교육을 포함한 학교 교육 전 과정을 통해 중점적으로 기르고자 하는 6가지 역량을 제시하였다. 곧 자기관리 역량, 지식정보처리 역량, 창의적 사고 역량, 심미적 감성 역량, 의사소통 역량, 공동체 역량이다. 본고는 이러한 역량을 증진시키는 것이 중요하다고 인식하고 전통적 가치관 교육을 6가 지 역량의 신장과 관련지어 논의하였다. 다만 지식정보처리 역량은 중등학교 한문과 교육과정을 참고로 하여 인성역량으로 바꿔서 검토하였다. 본고에서 논의 한 ≪삼국유사≫와 ≪삼국사기≫의 서사 텍스트는 하나의 예시 자료이며 각 교과의 학습목표나 학습제재에 따라 다른 서사 텍스트로 대치할 수 있다. 또한 ≪삼국유사≫와 ≪삼국사기≫의 서사 자료에 국한하지 않고 초등학교 학습자들이 흥미 있게 학습에 몰입할 수 있는 다양한 한문 고전 자료의 활용도 가능할 것이다. 여기에서의 논의가 촉매가 되어 초등학교 수업 현장에서 한문 고전을 활용한 다양한 교수･학습 방법이 도출되기를 기대한다.

A cultivar (Malus domestica cv. Fuji) of apple was selected to make apple peel (AP) powder by three different powdering methods. Frozen AP was thawed and subsequently was dried or ground without drying. After AP was dried by hot-air drying at 60°C or freeze-drying, the dried AP was ground using a conventional blender. Separately, the thawed AP was powered by using a cryogenic micro grinding technology (CMGT). The ground AP and three types of AP powder were extracted using deionized water, 20, 40, 60, 80, or 100% methanol, followed by vacuum evaporation. The total phenolics contents (TPC), total flavonoids contents (TFC), DPPH, and ABTS radical scavenging capacities of each extract were compared to determine an efficient powdering method. Lyophilized AP powder extract using 60% methanol showed the highest TPC and DPPH radical scavenging capacity. In contrast, 60% methanol extract of the powder by CMGT, resulting in the smallest particle, exhibited the highest TFC and ABTS radical scavenging capacity. This study suggests that the extraction yield of bioactive compounds from AP may be varied according to different powdering methods and that a new powdering process such as CMGT may be applicable to develop functional foods efficiently.

Vietnam is a marine nation with more than 3,260 km of shoreline, thousands of islands and 2,360 rivers and canals of over 42,000 km long. As the amount of Hazardous and Noxious Substances (HNS) transported by ships increases, the possibility of accident..

PURPOSES: In this study, alkali-activated blast-furnace slag (AABFS) was investigated to determine its capacity to absorb carbon dioxide and to demonstrate the feasibility of its use as an alternative to ordinary Portland cement (OPC). In addition, this study was performed to evaluate the influence of the alkali-activator concentration on the absorption capacity and physicochemical characteristics. METHODS: To determine the characteristics of the AABFS as a function of the activator concentration, blast-furnace slag was activated by using calcium hydroxide at mass ratios ranging from 6 to 24%. The AABFS pastes were used to evaluate the carbon dioxide absorption capacity and rate, while the OPC paste was tested under the same conditions for comparison. The changes in the surface morphology and chemical composition before and after the carbon dioxide absorption were analyzed by using SEM and XRF. RESULTS: At an activator concentration of 24%, the AABFS absorbed approximately 42g of carbon dioxide per mass of paste. Meanwhile, the amount of carbon dioxide absorbed onto the OPC was minimal at the same activator concentration, indicating that the AABFS actively absorbed carbon dioxide as a result of the carbonation reaction on its surface. However, the carbon dioxide absorption capacity and rate decreased as the activator concentration increased, because a high concentration of the activator promoted a hydration reaction and formed a dense internal structure, which was confirmed by SEM analysis. The results of the XRF analyses showed that the CaO ratio increased after the carbon dioxide absorption. CONCLUSIONS : The experimental results confirmed that the AABFS was capable of absorbing large amounts of carbon dioxide, suggesting that it can be used as a dry absorbent for carbon capture and sequestration and as a feasible alternative to OPC. In the formation of AABFS, the activator concentration affected the hydration reaction and changed the surface and internal structure, resulting in changes to the carbon dioxide absorption capacity and rate. Accordingly, the activator ratio should be carefully selected to enhance not only the carbon capture capacity but also the physicochemical characteristics of the geopolymer.

The present study is aimed at examining in multilateral ways the structural relationship among technological orientation, market orientation and product development performance of manufacturing companies, which are deemed to be key factors for them to increase absorptive capacities. From the study, it was revealed that: First, in terms of the relationship between market orientation and absorptive capacities, it was made clear by the analysis that the market orientation sought after by manufacturing companies has influence upon their absorptive capacities. Second, with regard to the relationship between technological orientation and absorptive capacities of manufacturing companies, the analysis found that the technological orientation pursued by them affects their absorptive capacities. Third, as for the relationship between absorptive capacities and product development performance, the analysis made it clear that the absorptive capacities of manufacturing companies exerts influence upon their product development performance. Fourth, in respect to the relationship between market orientation and product development performance, it was concluded from the analysis that market orientation produces effect upon product development performances like technological innovation and acquisition of new technologies needed for product development. Finally, regarding the relationship between technological orientation and product development performance of manufacturing companies, it became obvious from the analysis that the technological orientation affects the product development performance.

A novel experimental set-up allowing quantitative determination of the adsorption capacity of gas molecules on a surface under high-vacuum conditions is introduced. Using this system, the toluene adsorption capacities of various carbon nanostructures were determined. We found that for a give surface area, the adsorption capacities of toluene of multi-walled carbon nanotubes and nanodiamonds were higher than that of activated carbon, which is widely used as an adsorbent of volatile organic compounds. The adsorption of toluene was reversible at room temperature.

산뽕잎, 은행잎 및 혼합차의 침출시간에 따른 항산화 활성을 DPPH 라디칼 소거 활성과 FRAP 방법으로 조사하였으며, 총 페놀 화합물의 함량은 Folin-Ciocalteu법, 플라보노이드 함량은 HPLC로 분석하였다. 침출시간에 따라서 DPPH 라디칼 소거활성과 FRAP 활성은 은행잎차, 혼합차, 산뽕잎차 순으로 높게 나타났다. 총 페놀 성분 함량은 은행잎차, 혼합차, 산뽕잎차 순으로 높았으며 산뽕잎에 은행잎을 2:1로 혼합하였을 때 항산화 활성이 증가하였다. 침출시간 3분 정도에서 산뽕잎차 및 혼합차는 비교적 항산화 활성이 높았으며 은행잎차는 6분 까지 활성이 증가하였다. HPLC로 분석한 플라보노이드 성분 함량은 quercetin이 모든 차에서 가장 함량이 높았으며, 은행잎차, 혼합차, 산뽕잎차 순으로 플라보노이드의 총 함량이 높게 나타났다. 제조한 침출차 들의 항산화 성분 함량과 항산화 활성의 상관계수는 0.87 이상으로 상관성이 상당히 높았다.

목적 : 본 연구는 정신분열병 환자의 직무수행능력(WPP), 집중력과 사고조작능력 등의 인지기능 (LOTCA-Ⅱ), 근로자로서의 역할 인식(WRI), 그리고 정신사회적 기능-증상(BASIS-32)을 평가하여 임상증상과의 관련성을 조사하고, 정신분열병환자의 직무수행능력을 예측할 수 있는 변인을 파악하여 효율적인 정신과 작업치료 프로그 램 개발을 위한 기초 자료를 제공하는데 목적이 있다. 연구방법 : 연구대상은 T 정신보건센터에 등록하여 서비스를 받고 있는 정신분열병환자 20명을 대상으로 하였다. 2009년 6월부터 9월 사이에 자료를 수집하였다. 전체 대상자를 대상으로 작업수행능력과 역할인식, 인지기능 및 증상 사이에 상관관계가 있는지 알아보기 위해 스피어맨 순위 상관계수를 구하였다. 최종적으로 단계적 다중회귀 분석을 실시하여 직무수행능력에 영향을 미치는 예측 요인을 확인하였다. 결과 : 스피어만 순위 상관계수를 이용하여 상관관계를 조사한 결과 직무수행능력과 상관이 있는 요인들 중 사회기 술과 작업동기를 예측하는 요인으로는 역할인식(WRI)의 습관과 정신사회적 기능 및 증상(BASIS-32)의 일상생 활 및 역할기능이 설명력 높은 변수로 확인되었다. 결론 : 본 연구의 결과를 통해서 직무수행능력을 예측하는 변인을 파악하고 직무수행능력 향상을 위한 작업치료 프 로그램의 필요성을 인식하게 되었다. 향후 정신분열병 환자에게 직무수행능력과 관련된 다양한 작업치료 활동을 제공하고 그 효과를 검증하는 연구가 진행되어야 할 것이다.

Using green tea(GT), oolong tea(OT), black tea(BT) and green tea bag(GTB) out of tea products in market, this study quantified polyphenol and catechins as anti-oxidant substances and analyzed their respective anti-oxidant capacities. As a result, more epigallocathechin(EGC) was found in GT and GTB as well as caffein(CAF) in GT and BT. GT contained more epigallocathechin gallate(EGCG) than other tea types. Both FRAP and ORAC, as two methods of analyzing anti-oxidant capacities, showed that GTB had highest anti-oxidant capacities, while OT had lowest of all. By brand, it was found that all the 3 brands of GT had similarly high anti-oxidant capacities, but there were differences in the anti-oxidant activities of GTB and BT depending on brand. Out of catechin components, it was found that epicatechin(EC), epicathechin gallate(ECG) and EGCG were major components affecting anti-oxidant capacities.

Zeolitic material, Z-Y3, was synthesized from coal fly ash (CFA) under low-alkaline conditions (NaOH/CFA ratio = 0.3 and NaOH solution concentrations of 0.0, 0.5, and 1.0 M) using a fusion/hydrothermal method. The adsorption capacities of the fabricated Z-Y3 samples for Cs and Sr ions and the desorption capacity of Na ions were evaluated. The XRD patterns of the Z-Y3 sample fabricated using a 1.0 M NaOH solution (Z-Y3 (1.0 M)) indicated the successful synthesis of a zeolitic material, because the diffraction peaks of Z-Y3 coincided with those of the Na-A zeolite in the 2θ range of 7.18-34.18. Moreover, the SEM images revealed that morphology of the Z-Y3 (1.0 M) sample, which presented zeolitic materials characteristics, consisted of sharp-edged cubes. The adsorption isotherms of Cs and Sr ions on all the fabricated Z-Y3 samples were described using the Langmuir model, and the maximum adsorption capacities of Cs and Sr were calculated to be 0.14-0.94 mmol/g and 0.19-0.78 mmol/g, respectively. The desorption of Na ions from the Cs and Sr ions adsorbed Z-Y3 samples followed the Langmuir desorption model. The maximum desorption capacities of Na ions from the Cs and Sr ions adsorbed Z-Y3 (1.0 M) samples were 1.28 and 1.49 mmol/g, respectively.