The present study examines the effects of schema activation and reading strategy use on L2 learners’ reading comprehension, strategy use, motivation, and learner beliefs. The participants consisted of 89 Korean college students, and they were assigned to one of two reading activity groups―schema building or reading strategy instruction―or to a control group. The study employed a background questionnaire, pre-, post-, and delayed English reading comprehension tests, and also pre- and post-reading strategy use, reading motivation, and general learner belief questionnaires. The results indicate that both the schema building and reading strategy task groups showed significant improvements in terms of immediate learning effects, but the reading strategy group showed an added degree of improvement over the schema building and control groups in terms of long-term reading comprehension. Additionally, the two task groups reported positive responses to their own use of reading strategies, motivation, and positive beliefs. Based on the findings, this study suggests pedagogical implications for L2 reading classrooms.

Laser induced surface activation (LISA) technology requires refined selection of process variables to fabricate conductive microcircuits on a general polymer material. Among the process variables, laser mode is one of the crucial factors to make a reliable conductor pattern. Here we compare the continuous wave (CW) laser mode with the pulse wave (PW) laser mode through determination of the surface roughness and circuit accuracy. In the CW laser mode, the surface roughness is pronounced during the implementation of the conductive circuit, which results in uneven plating. In the PW laser mode, the surface is relatively smooth and uniform, and the formed conductive circuit layer has few defects with excellent adhesion to the polymer material. As a result of a change of laser mode from CW to PW, the value of Ra of the polymer material decreases from 0.6 m to 0.2 m; the value of Ra after the plating process decreases from 0.8 m to 0.4 m, and a tight bonding force between the polymer source material and the conductive copper plating layer is achieved. In conclusion, this study shows that the PW laser process yields an excellent conductive circuit on a polymeric material.

Background: Based on the understanding of the muscle activation relationship between the infraspinatus and posterior deltoid muscles to according to the angle of motion during external rotation on glenohumeral joint, effective shoulder joint strengthening exercise for the prevention and rehabilitation of shoulder injury due to muscle strength imbalance can be performed by achieving the ideal muscle activity ratio during exercise. Objectives: To compare and analyze the muscle activation changes and activity ratio of the infraspinatus and posterior deltoid muscles according to the glenohumeral external rotation angle. Design: Quasi-randomized trial. Methods: The study included 48 healthy male and female adults who provided informed consent for participation in the study. All the subjects performed isometric glenohumeral external rotation by setting the angle of motion to 30°, 45°, and 60° using a 5 kg resistance weight pulley. On surface electromyography, the differences in muscle activation and activity ratio between the infraspinatus and posterior deltoid muscles were investigated. Results: A significant difference in muscle activation was found in the comparison between the infraspinatus and posterior deltoid muscles according to the glenohumeral external rotation angle (P<.05). The muscle activation levels of the infraspinatus and posterior deltoid muscles were highest at the external rotation angles of 30° and 60°, respectively. The muscle activity ratio between the infraspinatus and posterior deltoid muscles also showed a significant difference (P<.05) and was highest at the shoulder external rotation angle of 30°. Conclusion: The findings of this study suggest that muscle activity is the highest at the shoulder external rotation angle of 30° in healthy individuals.

In this study, hair waste was converted into active carbon for the first time and its characteristics were analyzed. As chemical activation tool, zinc chloride ( ZnCl2) was impregnated and then carbonized under different temperatures (250–300 °C). Scanning Electron Microscope (SEM) images showed an increase in the pore density, radius and volume of pores. X-ray diffraction analysis (XRD) showed that the samples had an amorphous structure. In Fourier-transform infrared (FT-IR) spectroscope analysis, C=C and N–H vibrations observed in 1515–1520 cm−1 wave number of protein molecules were found to disappear with the increase in temperature. With Raman spectroscopy, the behaviors of D peak at 1344 cm−1 wave number and G peak at 1566 cm−1 wave number expressing structure layout in carbonized structures were analyzed depending on the temperatures. Between these intensities, (ID/IG) the rate was found to differ in direct proportion to temperature. XRD spectrums showed that the samples are converted into a more irregular crystal structure. All these results implied that the waste hair mass could be used as an adsorbant material.

Low thermal conductivity carbon fibers from polyacrylonitrile (PAN) are currently being explored as an alternative for traditional rayon-based carbon fibers with a thermal conductivity of 4 W/m K. Compared to multiple component electrospinning, this research demonstrated another feasible way to make low thermal conductivity carbon fibrous material by electrospinning PAN followed by carbonization and alkali activation. The effects of activation condition on microstructure, pore formation, and thermal conductivity of the resultant carbon nanofibrous material were investigated. The processing-structure-thermal conductivity relationship was revealed and mechanism of thermal conductivity reduction was discussed. The overall thermal conductivity of the prepared carbon nanofibrous material is a result of combined effects from factors of carbon structure and number of pores rather than volume of pores or specific surface area. The activated carbon nanofibrous materials showed thermal conductivity as low as 0.12 W/m K, which is a reduction of ~ 99% when compared to that of solid carbon film and a reduction of ~ 95% when compared to that of carbon nanofibrous material before activation.

Pumpkin sweet potato (Ipomoea batas L.) has been known as a traditional remedy and food source, not only in South Korea but worldwide. It is rich in fiber, potassium, vitamin C, and other minerals and vitamins, making it a nutritional food loved by many. showed that pumpkin sweet potato had antioxidant biological effects. The in vitro study showed that both splenocytes and cytokine production byactivated peritoneal macrophages increased when water extracts were supplemented at 100 and 250 μL/mL. Notably, the production of IL-1β, TNF-α, and IFN-γ by splenocytes was significantly increased at 100 μL/mL. The results suggest that supplementation with pumpkin sweet potato (Ipomoea batas L.) water extract may enhance immune function by stimulating splenocyte proliferation and improving cytokine production, activating macrophages in vitro.

현재 중국 중고차시장은 급성장단계에 있다. 시장진입 초기인 2000년대 초반부터 자동차산업시장의 발전 흐름을 타고 성장 움직임을 보였다. 중국 정부는 2004년 ｢자 동차산업발전정책(汽车产业发展政策)｣을 마련하며 중고차시장 발전 의지를 공식적으로 드러냈다. 이어서 로컬기업뿐만 아니라 대형 외자기업에도 중고차판매를 허용하 며 본격적으로 시장 규모를 확대해가고 있다. 중국 중고차시장에 대한 기존의 관망적 관점에서 벗어나 새로운 접근 전략을 모색해야 할 적절한 시기에 당면하였다. 이 에 따라 본 연구에서는 중국 자동차산업 시장의 환경 변화와 관련하여 최근 급성장 하고 있는 중국 중고차시장의 유통 활성화 추세와 특징을 고찰하고 발전을 저해하는 제도적 요인들에 대해 살펴보고자 한다. 이를 통해 향후 관련 거래 기준 정책이 정비되는 과정에서 발전을 저해해온 문제 요소들이 차츰 해결되고 거대시장으로 성장 할 수 있을 지에 대한 종합적 검토가 필요할 것으로 보인다.

목적 : 본 연구는 스마트 글러브를 이용한 가상현실 기반의 상지재활훈련이 뇌졸중 환자의 상지기능, 상지의 근 활성도, 일상생활 활동과 삶의 질에 미치는 효과를 분석하고자 한다. 연구방법 : 선착순 무작위 대조 실험연구 방식으로 연구를 진행하였다. 의료연구협의회 지표(medical research council scale), 한국판 간이정신상태검사(Korean version of Mini-Mental State Examination; MMSE-K)로 대상자를 선별하여 뇌졸중 환자 31명을 무작위로 스마트 글러브를 이용한 가상현실 기반의 상지재활훈련군과 일반적 작업치료군으로 나눈 뒤, 주 5회 하루 30분씩 총 25회기 동안 실험을 진행하였다. 중재 전ᆞ후 비교 분석을 하기 위해서 뇌졸중 상지 기능평가(Manual Function Test; MFT), 표면 근전도 검사(Surface Electromyography; EMG), 한국판 수정된 바델지수(Korean version of Modified Barthel Index; K-MBI), 뇌졸중 영향 척도 3.0(Stroke Impact Scale 3.0; SIS)을 사용하였다. 결과 : 첫째, 실험군과 대조군에서 상지의 기능향상(MFT)이 있었고, 실험군에서 위팔노근의 근 활성도에 유 의한 향상이 있었다. 둘째, 일상생활활동에서는 실험군과 대조군에서 유의한 향상을 보였다. 셋째, 삶의 질 에서는 실험군에서 유의한 향상이 있었다. 결론 : 스마트 글러브를 이용한 가상현실 기반 상지재활훈련은 뇌졸중 환자의 상지기능, 근 활성도, 일상생활 활동과 삶의 질을 향상하는 효과적인 작업치료 방법이다.

사회복지관은 2004년 6대사업에서 5대 사업으로, 2013년 5대사업에서 3대 기능사업으로 변경하면서 기능정립 활성화를 위해 노력하는 시점에서 지역기반의 공공복지전달 체계 개편까지 진행되면서 기능정립에 강한 도전을 받고 있다. 특히 사회복지서비스의 접근성이 취약한 농촌 및 기반시설이 열악한 지역의 경우는 건물보다 찾아가는 현장 중심의 서비스 제공인 스마트워크 방식의 도입이 필요하다는 문제의식을 가지게 되었다. 이러한 문제 해소를 위한 연구대상 및 방법으로 실질적 스마트워크 방식 복지관을 운영하고 있는 파주문산종합사회복지관 ‘스마트복지센터’, 제주스마트복지관, 영종공감복지센터 등을 통한 실태조사를 실시하였으며, 연구결과로 ‘현지완결형 업무수행’, ‘주민조 직화 중심’, ‘지역거점 중심’으로 복지관의 기능이 정립되었을 때 3대 기능이 통합적으로 적용될 수 있음이 나타났다. 이러한 결과는 결국 사회복지관의 기능이 주민과 지역중심이 더 강화되어야 하며 일의 방식이 현지완결형의 스마트워크 방식으로 변화 되어야함을 시사한다고 볼 수 있다.

주도적 성격과 조직시민행동 간 관계에 대한 관심에도 불구하고, 선행연구들은 일치된 결과를 제공하 고 있지 못하고 있다. 또한 이 관계에 영향을 미치는 사회적 경계조건인 상사와 동료 관계 역시 어떠한 이론적 기반을 통해 가설화하느냐에 따라 상이한 예측이 가능하다. 이에 본 연구에서는 자기향상동기, 특 성활성화이론, 자원보존이론을 기반으로 주도적 성격이 조직시민행동의 참여 정도에 어떠한 영향을 미치는지를 검토하는 하였다. 더 나아가 자원보존이론과 특성활성화이론을 각각 활용하여 상사 지원 수준과 동료의 사회적 태만 정도가 주도적 성격과 조직시민행동에 미치는 효과를 어떻게 조절하는지를 대립가설 로 설정하여 살펴보았다. 특히 본 연구에서는 주도성 자체와 자기향상동기 관련 논의를 바탕으로 주도적 성격을 가진 구성원일수록 조직시민행동이 증가할 것으로 예측하였다. 그리고 특성활성화이론과 자원보존이론을 기반으로 상사 지원과 동료의 사회적 태만 정도가 갖는 상반된 조절효과에 대해 제시하고 대립 가설을 수립하였다. 이를 검증하기 위해 다양한 산업군의 조직에서 근무하는 167명의 상사-조직구성원 설문이 사용되었고, 분석 결과 예측과 같이 주도적 성격은 조직시민행동을 증가시키는 것으로 나타났다. 또한 두 가지 이론들 중 특성활성화이론에 기반한 예측과 같이, 상사 지원이 낮을 때나 동료의 사회적 태만이 높은 경우 주도적 성격을 가진 사람일수록 주도성이 발현되어 오히려 조직시민행동에 보다 활발 히 참여하는 것으로 나타났다. 이러한 연구결과를 바탕으로 결론에서는 조직시민행동에 영향을 미치는 성격적 요인에 대한 추가적인 논의와 채용 및 선발 관점에서 본 연구가 가진 시사점, 그리고 연구의 한계 점과 향후 연구방향을 논의하였다.

Background: For performing various movements well, cooperation between the muscles around the scapula and shoulder has been emphasized. Taping has been widely used clinically as a helpful adjunct to other physiotherapy methods for shoulder pathology and dysfunction treatment. Previous studies have evaluated the effect of taping techniques using dynamic tapes on shoulder function and pain. However, no study investigated the electromyographic (EMG) changes in the shoulder muscles. Objects: This study aimed to investigate the effect of the upper limb offload taping technique using a dynamic tape on EMG activities of the upper trapezius (UT), lower trapezius, serratus anterior (SA), and middle deltoid (MD) muscles during scaption plane elevation. Methods: A total of 26 healthy subjects (19.85 ± 6.40 years, male = 20) volunteered to participate in this study. The subjects were instructed to perform scaption elevation with and without dynamic taping on the shoulder. Shoulder elevation strength tests were performed at 100%, 75%, 50%, and 25%, for the maximal isometric contraction force. Results: There were statistically significant interaction effects between the taping application and shoulder scaption elevation force in EMG activities in the UT (p < 0.05) and MD (p < 0.05). EMG activities in the UT showed significant increases in 50%RVC (reference voluntary contraction, p < 0.05) and 25%RVC (p < 0.01). Furthermore, the EMG activity of the SA significantly increased in 50%RVC (p < 0.01) and 25%RVC (p < 0.01) after dynamic taping. For the MD, the EMG activity level significantly decreased in 100%RVC (p < 0.05). Conclusion: These results indicated that upper limb offload dynamic taping application affects the muscle activities of some shoulder muscles depending on different scaption elevation strength levels. Therefore, we suggest that the upper limb offload dynamic taping can be applied to the shoulders when patients need middle deltoid inhibition or upper trapezius facilitation, such as patients with shoulder impingement syndrome.

Salacca peel-based porous carbon (SPPC) with high surface area (1945 m2 g−1) and large specific pore volume (1.68 cm3 g−1) was prepared by pre-carbonization and K2CO3 activation method. Based on the TGA results, it can be estimated that up to 70 wt% of sulfur-active materials could be infiltrated into the pores of SPPC to form SPPC/S composite cathode for LiS battery. The porous structure of SPPC could act as a buffer layer against volume expansion and minimize the shuttle effect due to the penetration of intermediate polysulfides during cycle tests. Optimization on sulfur loading (50, 60 and 70 wt%) in SPPCC/S composite was also investigated. It was found that the SPPC/S composites with 60 wt% of sulfur loading had the best electrochemical performances. With 60 wt% of sulfur loading, SPPC/S composite electrodes showed excellent electrochemical performances in terms of high initial specific discharge capacity of 1006 mAh g− 1 at 0.5 C and capacity retention of 71% until the 100th cycle. For both cases of low and high sulfur loading, they caused much worse electrochemical performances. Based on the experimental results, it can be concluded that porous carbons derived from the salacca peel were promising materials for sulfur loading in LiS battery.

A highly functional, environmentally friendly carbonaceous adsorbent material using black liquor (a by-product from the pulp manufacturing) was produced and characterized. This study showed the effect of self-chemical activation driven by inherent alkali, originated from the unique composition of black liquor. A preparation of the micropore-dominant activated carbon was made in an easy and simple manner. The specific surface areas of samples were found to be 718–1591 m2/ g variated upon heat treatment conditions. The sample activated at 850 °C (50 min as retention time) showed the maximum specific surface area of 1591 m2/ g with 13.6% as a production yield. Considering the factors influencing pore structure of activated carbon materials in this study, it was confirmed that mesopore-related surface area increased gradually as the activation temperature and retention time increased. It is noteworthy to address that economically valuable micropore-dominant activated carbon can be produced by a simple heat treatment of the waste material, black liquor. The activated carbon sample derived from black liquor can be applied to various fields, such as environment and energy storage.

본 연구는 규칙적인 태권도 트레이닝이 비만 중년 여성의 뇌신경성장인자 및 인지기능에 미치는 영향을 알아보는데 목적이 있었다. 본 연구를 위하여 중년 비만 여성 33명이 연구대상자로 선정되었으며, 연구대상자들은 태권도 그룹(TG, n=15)과 대조그룹(CG, n=18)에 무선 배정되었다. 태권도 그룹은 16 주간 일주일에 5번 태권도 트레이닝을 실시하였으며, 두 그룹 모두 트레이닝 전과 후 각각 brain-derived neurotrophic factor(BDNF), vascular endothelial growth factor(VEGF), insulin-like growth factor-1(IGF-1) 농도 검사와 Stroop Color and Word test를 실시하였다. 연구 결과 태권도 그룹의 BDNF와 IGF-1이 트레이닝 후 유의하게 증가한(p<.05) 반면 VEGF와 Stroop Color and Word Test 결과 는 유의한 차이가 나타나지 않아 규칙적인 태권도 트레이닝이 비만 중년 여성의 뇌신경영양인자에는 긍정 적이지만 뇌 인지기능에는 영향이 없는 것으로 나타났다.

Background: Early rehabilitation after partial meniscectomy is important to recover the balance of the vastus medialis oblique and vastus lateralis and prevent pathological problems in the lower extremities and the whole body. Objective: To compare muscle activations for patients after partial meniscectomy. Design: Dual-group Pretest-Posttest Design from the Quasi-Experimental Research. Methods: Twenty participants after partial meniscectomy were recruited and were randomly divided into a Q-setting sensorimotor training group (QSMTG) and Q-setting exercise group (QSEG). Muscle activity of the vastus medialis oblique and vastus lateralis was measured before and after intervention. Results: In the two groups, the vastus medialis oblique and vastus lateralis activations increased significantly (P<.05). The Q-setting sensorimotor training group showed more increases than the Q-setting exercise group, and there were significant differences between the groups (P<.05). The activation ratio of the vastus medialis oblique and vastus lateralis had increasingly significant differences in the Q-setting sensorimotor training group (P<.05), and there were no significant differences between the groups (P>.05). Conclusion: Q-setting exercise with sensorimotor training was a useful method that improved the balance of vastus medialis oblique (VMO) and vastus lateralis (VL) activity after meniscectomy.

Lipopolysaccharide (LPS)는 염증유발 cytokine 분비를 자극하고 염증을 유발하는 그람음성균의 내독소이다. 본 연구에서는 LPS가 신경아교세포 활성과 해마에 있는 nuclear factor kappa B (NF-κB) 매개 염증유발 요소를 조절하는지를 조사하였다. 성체 수컷 쥐를 대조군과 LPS를 투여한 실험군으로 무작위로 나누어 vehicle 또는 LPS (250 μg/kg)를 5일 동안 복강투여하고 무게를 측정했다. 해마의 활성산소와 과산화지방질 수준을 분석하고, 형태학적 연구를 위해 Hematoxylin and eosin 염색을 시행하였다. 또한, 해마에서 ionized calcium-binding adapter molecule 1 (Iba-1), glial fibrillary acidic protein (GFAP), NF-κB, interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α)의 발현을 확인하기 위해 Western blot 분석과 immunofluorescence 염색을 시행하였다. 그 결과, LPS를 투여한 쥐들의 체중이 감소하였다. LPS 투여는 활성산소와 과산화지방질 수준의 증가를 유발하였고 LPS를 투여한 쥐의 해마에서 심각한 조직병리학적 변화를 확인했다. 또한 LPS 투여는 신경교세포와 별아교세포의 표시물인 Iba-1과 GFAP의 발현을 증가시켰고, NF-κB의 발현과 IL-1β와 TNF-α와 같은 염증성인자의 발현을 증가시켰다. 이러한 결과들을 통해 LPS 투여는 해마손상과 염증반응을 유도한다는 것을 알 수 있고 LPS 투여가 해마조직에서 신경아교세포와 NF-κB에 매개된 염증인자들을 활성화시킨다는 것을 확인하였 다. 따라서, 본 연구는 LPS 투여는 해마조직에서 산화적 스트레스 증가와 염증인자 활성을 증가시켜 신경손상을 유도함을 보여준다.