검색결과

검색조건
좁혀보기
검색필터
결과 내 재검색

간행물

    분야

      발행연도

      -

        검색결과 1,118

        67.
        2023.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Background: A functional movement screen (FMS) can be used as an intervention method as well as a test method. Compensatory action due to a faulty functional movement result in imbalance of the body, and decrease in proprioceptive sensation and flexibility. However, the benefits of exercise using FMS on proprioceptive sensation and flexibility are unclear. Objectives: This study aimed to investigate the effect of exercise using FMS on the proprioceptive sensation and flexibility. Design: Pretest-posttest control group experimental design. Methods: Fifty-two young adults in their 20s were divided into an FMS exercise group (FEG, n=26) and a control group (CG, n=26). The FEG conducted FMS exercise intervention for 12 days, and CG did not implement any intervention. Each group evaluated proprioceptive sensation and flexibility before and after exercise. To measure proprioceptive sensation, the angles were measured at both shoulder joints, elbow joints, hip joints, and knee joints using the active joint sensory position test method. To measure flexibility, situp forward bending evaluation was performed. Results: In the FEG, bilateral proprioceptive sensation and flexibility improved significantly after intervention (all P<.01). There were no significant differences in the CG (all P>.05). After the intervention, there were significant differences between the groups in both proprioceptive sensation and flexibility (all P<.05). Conclusion: The findings suggest that exercise using FMS can significantly improve proprioceptive sensation and flexibility. Therefore, it is suggested to consider exercise using FMS as an intervention to increase joint proprioceptive sensation and flexibility.
        4,000원
        68.
        2023.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Background: Core muscle weakness occurs due to trunk asymmetry and spinal malalignment after stroke. Core exercise is being implemented to improve trunk control and sitting position in stroke patients. Objectives: To investigated the effects of core muscle electrical stimulation on trunk control and dynamic balance in stroke patients. Design: Quasi-experimental study. Methods: A total of 30 stroke patients were recruited and divided into two groups: experimental group (core muscle electrical stimulation group) and control group (sham core muscle electrical stimulation group). Trunk impairment scale (TIS) was used to measure trunk control. BioRescue was used to measure sitting dynamic balance. Results: In both groups, all TIS scores and sitting dynamic balance abilities were improved increased significantly after intervention (P<.05). Changes in TIS scores and sitting dynamic balance abilities were significantly greater in the experimental group than the control group (P<.05). Conclusion: It was found that core muscle electrical stimulation can be used as an effective method for trunk control and balance recovery in stroke patients.
        4,000원
        69.
        2023.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study evaluated how acid treatment affects the ability of customized beads of activated carbon (BAC) to remove formaldehyde from air. Two different acids (hydrofluoric acid and sulfuric acid) were used to modify the surface of BAC prepared from a polymer material. The acid-modified BACs were further subjected to heat treatment. Physical and chemical characteristics of modified and unmodified BACs were investigated using nitrogen adsorption, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray fluorescence, and X-ray photoelectron spectroscopy. Formaldehyde removal was evaluated under both dry and moist conditions. From the results, acid treatment clearly improved the adsorption performance, especially under the moist condition. Qualitative and quantitative surface analyses were conducted, mainly to examine the amount of O-bonds after acid treatment and the formation of S–O or Cl–O on BAC.
        4,300원
        70.
        2022.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Repetitive or excessive exposure to ultraviolet (UV) radiation causes oxidative stress-mediated skin photoaging through the overproduction of reactive oxygen species. Actinidia polygama is known as a medical plant used in oriental medicine for treating several diseases such as abdominal pain, stroke and rheumatoid arthritis. Recently, it was reported that A. polygama extract had anti-wrinkle and skin hydrating properties in ultraviolet B (UVB)-exposed hairless mice. However, the molecular biological mechanism of this extract on alleviating skin photoaging is still unknown. Therefore, we investigated the anti-photoaging effects of PB203, which is the powder of A. polygama extract, in the in vivo and in vitro photoaging models. First, PB203 showed 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) and 2,2-diphenyl-1-picrylhydrazyl radical scavenging activities due to the presence of anti-oxidant components including flavonoids and polyphenols. In UVB-irradiated hairless mice, oral administration of PB203 (100 mg/ kg) significantly improved wrinkle formation, skin dehydration, elasticity and skin barrier function by decreasing the levels of matrix metalloproteinases (MMPs) and increasing those of collagen I, filaggrin, involucrin and loricrin. Especially, the reduced production of p-p38, p-c-Jun and p-c-Fos by PB203 reversed the elevated levels of MMPs mediated by UVB exposure, resulting in the upregulation of collagen I expression. Consistent with these animal data, PB203 remarkably enhanced the mRNA expression of collagen I, filaggrin, involucrin and loricrin, while suppressed that of MMPs in UVB-irradiated HaCaT cells. And PB203 increased the wound recovery rate of cells by promoting their proliferation and migration. Moreover, PB203 significantly recovered the activity of superoxide dismutase inhibited by UVB in both mice and cells. In conclusion, PB203, which protects skin from UVB-induced photodamage by exerting antioxidant properties, can be considered to have sufficient potential as a functional ingredient or therapeutic agent improving skin photoaging and related skin symptoms.
        5,500원
        71.
        2022.12 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        This study investigated the effects of complex problem-solving activities involving children’s literature on students’ critical thinking dispositions and English production. Thirty-one sixth-grade students were given lessons over a seven-week period. Various types of data were analyzed qualitatively, and the results of a critical thinking disposition test were analyzed quantitatively. Results were as follows: First, the critical thinking dispositions test revealed positive changes in open-mindedness, independence, objectivity, and inquisitiveness. The highest score was found for open-mindedness. The largest increase in score was for independence and objectivity. Second, changes in critical thinking dispositions enriched children’s English production. Open-mindedness helped with spoken language production as it encouraged students to share their opinions freely. Independence was mainly expressed in writing form in which students could question and evaluate the text. Greater objectivity was applied to spoken and written language production as the subjects were able to recognize the importance of evidence. Inquisitiveness affected children’s writing as it drove them to write down the results of their own research.
        7,000원
        72.
        2022.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        최근 수십 년간 전 세계는 경제발전과 수송수단의 향상으로 다양한 외래종이 침입할 수 있는 시대가 되었다. 외국산 농산물의 수입요구는 외 래종의 침입을 보다 용이하게 하며 이렇게 침입한 외래종은 국내 생물상의 교란을 야기한다. 식물검역의 목적은 외래해충으로부터 국내 농업환경 및 생태계를 보호하는데 있다. 본 연구에서는 농림축산검역본부의 병해충정보시스템에 기록된 자료를 통해 1996년부터 2020년까지 수입절화류 에서 발견한 해충 검출 동향을 분석하였다. 이 기간동안 총 69개국 159품목 147,160개에서 검출된 해충은 13,757건의 467종 (잠정규제해충 273 종, 관리해충 78종, 비검역해충 118종)이었다. 특히, 총채벌레목과 매미목 해충의 검출율이 전체의 80% 이상을 차지하여 수입 절화류에서 가장 많 이 발견되는 해충분류군으로 분석하였다.
        4,000원
        80.
        2022.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Nonalcoholic fatty liver disease (NAFLD) is recognized one of the leading metabolic diseases globally, and the younger age population with the disease is rapidly growing, especially in developed countries. Since there has been no approved medicine, losing weight is known to be the only best remedy to control or reverse the disease. Recently, the field of microbiome has attracted much attention to offer more practical choices for patients. Here, we provide experimental evidence that Streptococcus thermophilus LM1012 (LM1012), a safe probiotic strain, is effective for improving NAFLD indexes. In the methionine-choline deficient (MCD) diet induced C57BL/6 mouse model, administration of LM1012 promoted marked reductions of aspartate transaminase (23.8%), total bilirubin (27.8%), hydroxycholesterol (64.2%), triglyceride (29.7%) and IL-1β (68.3%) compared to the MCD diet alone group. Also, the histopathological data imply that LM1012 inhibited fat accumulation and inflammation in the liver, which are the key biomarkers for progression of the disease. Together, these findings suggest that human consumption of LM1012 as a healthy nutritional supplement, may be helpful in reducing the risk of liver damages in NAFLD patients.
        4,200원
        1 2 3 4 5