1,721,345 research outputs found
Relationship Between Body Composition, Physical Fitness, and Blood Variables in ELEMENTARY SCHOOL GIRLS
No full textThe purpose of this study was to investigate the effect of exercise program application and the relationship between physical fitness factors and blood variables according to various obesity evaluation criteria for 73 elementary school girls in D-city. As a result of study, body fat percentage and BMI significantly(p<0.05) decreased after exercise program application. In the case of physical fitness factors, it was found that the right, left, and upper body strength, long jump, and physical efficiency index were significantly(p<0.05) increased. In the case of blood variables, insulin, GOT, and GPT significantly(p<0.05) increased, and glucose and HDL-cholesterol significantly(p<0.05) decreased. As a result of the correlation analysis between body composition-related indicators and physical fitness factors, body fat percentage, BMI, WC, WHR, and WHtR showed significant(p<0.05) correlation with back muscle strength, and BMI, WC, WHR, and WHtR had significant(p<0.05) correlations between right and left grip strength. The body fat percentage showed a significant(p<0.05) inverse correlation with sit-up, standing long jump, and physical efficiency index, and BMI showed a significant (p<0.05) correlation with sit and reach, and a significant(p<0.05) inverse correlation with standing long jump and physical efficiency index. WHtR showed significant(p<0.05) inverse correlation with in standing long jump. As a result of correlation analysis of body composition-related indicators and blood variables, body fat percentage, BMI, WC, WHR, and WHtR showed(p<0.05) significant correlation with blood insulin concentration and GPT. Body fat percentage and BMI showed a significant(p<0.05) correlation with triglycerides, and a significant(p<0.05) inverse correlation with GOT and HDL-cholesterol. WC showed a significant(p<0.05) correlation with triglycerides and a significant(p<0.05) inverse correlation with HDL-cholesterol. WHtR showed a significant(p<0.05) inverse correlation with HDL-cholesterol. When the results of this study were put together, the 12-week complex exercise program confirmed the positive improvement effect of physical composition and physical fitness factors of elementary school girls.11Nothe
A Case of Primary Malignant Lymphoma of the Ovary
No full textA 41-year-old woman was operated under the impression of ovarian malignancy. The ovarian mass was diagnosed as a non-Hodgkin's lymphoma, diffuse large cell type of B lineage pathologically. Because regional lymph nodes and bone marrow were not involved and Ga67 whole body bone scan was normal, we suspected that ovary was a primary site of lymphoma. After six cycles of CHOP (cyclophosphamide, adriamycin, vincristine, prednisone) chemotherapy, complete remission status was maintained for 16 months. We report a case of primary ovarian lymphoma with a review of literatures.restrictio
A Case of Breast Cancer Metastatic Solely to the Uterine Cervix
No full textThe uterine cervix is an infrequent site of metastatic cancer whose origin is an extrapelvic lesion. Especially the metastasis of breast cancer to the uterine cervix is extremely rare. Owing to the high incidence of cervical cancer in Korea, metastatic cervical cancer can be easily mistaken for primary cervical cancer. We present a case with breast cancer metastatic solely to the uterine cervix.restrictio
A Case of Adenoid Basal Carcinoma in Uterine Cervix
No full textWe report a rare case of adenoid basal carcinoma in uterine cervix. The patient was a 43-year-old Korean female. She received neoadjuvant chemotherapy with Quick Cis-VP16 (cisplatin and VP16 with 7-10 days interval), three times and radical hysterectomy with pelvic lymph nodes dissection under the diagnosis of cervical cancer stage IIa. After the neoadjuvant chemotherapy, the mass size was 3 x 2.5 Cm and which was protruded in exocervical region. Microscopically, scattered small nests of uniformed small cells with dark nuclei and scant cytoplasm were observed. Peripheral palisading as well as the formation of gland-like or acinar structures were noted. There were also foci of squamous differentiation in same portion of the small nests. The epithelial surface in other portions showed squamous cell carcinoma, large cell non-keratinizing cell type. Distribution between adenoid basal carcinoma of the cervix and other disease, such as adenoid cystic carcinoma and squamous cell carcinoma with basaloid features, is important for clinical management because the clinical behavior of adenoid basal carcinoma is less malignant than adenoid cystic carcinoma.restrictio
Fair and efficient resource allocation model in a wireless multimedia CDMA system
No full textThis article is confirmed to be submitted through the review and edition of the Korean Operations Research and Management Science Society. Please enter the title (Journal/Proceedings), volume, number, and pages properly when citing the article.In this paper, we address the resource allocation problem in wireless multimedia CDMA systems. The cellular CDMA system is interference-limited; the limit on the capacity is reached when anyone of SIR(signal to interference ratio) of each user is less than the predetermined threshold value. Given the minimum QoS(measured by bit energy to noise density), service rate(by bit per second) requirement and transmit power limit, we formulate the feasibility condition in terms of SIR instead of the transmitted power, which is mostly used in literatures, so that many advantages are obtained; smaller number of variables, simpler structure of feasible region, etc. From the perspectives of micro-economics, we discuss existing optimization criteria such as the minimum total transmitted power or maximum sum of the rates, which are to be verified not to guarantee fairness, Accordingly, we suggest the new allocating decision criteria taking fairness as well as efficiency into account
The Effect of Weekly Short Duration Exercise in Weight Training on Isokinitic Muscular Function in Modern Dancers
No full text본 연구는 현대무용전공자들을 대상으로 웨이트트레이닝의 분할훈련법을 적용하여, 각 집단의 근 기능의 변화를 관찰함으로서 현대무용수에게 적합한 웨이트트레이닝운동법을 알아보고자 하였다. 연구대상자는 28명의 여성 현대무용수로서, 1분할집단, 2분할집단, 3분할집단, 대조집단으로 각각 7명씩 4집단으로 구분하여 12주간의 웨이트트레이닝을 실시하였다. 분석방법은 공변량분석(ANCOVA)을 실시하였으며, 유의도는 α=.05 로 하였다. 연구결과 운동전 후의 비교에서 분할법을 실시한 세 집단 모두 무릎관절, 허리관절, 발목관절의 신·굴근에서 운동 후 최대우력과 근지구력에 유의한 증가가 나타났다. 집단 간 비교에서 최대우력의 무릎관절 신․굴근은 웨이트트레이닝을 실시한 집단이 대조집단보다 유의하게 높게 나타났다. 허리관절 신․굴근은 1분할집단이 2분할과 3분할집단보다 높게 나타났고, 2분할과 3분할집단은 대조집단보다 유의하게 높게 나타났다. 발목관절의 신․굴근은 1분할 집단이 2분할과 3분할집단 및 대조집단보다 유의하게 높게 나타났다. 근지구력의 집단 간 비교에서 무릎관절의 신·굴근 모두 운동집단이 대조집단보다 유의하게 높게 나타났다. 허리관절과 발목관절의 신․굴근 모두 1분할집단이이 2분할과 3분할집단보다 유의하게 높게 나타났고, 2분할과 3분할집단은 대조집단보다 유의하게 높게 나타났다. 본 연구결과를 종합해 볼 때, 현대무용수에게 중요한 근․관절 부위인 허리관절과 발목관절의 효과적인 근 기능 증가를 위해서는 1주간 정해진 운동량을 2회나 3회로 분할하여 실시하는 방법보다 1분할 형태의 훈련법이 보다 효과적인 젓으로 나타났다.
This study aimed to identify suitable weight training methods for modern dancers by observing the change of Muscular Function applying weekly short duration exercise in weight training. 28 modern dancers were divided into 4 groups; 7 in 1st group, 7 in 2st group, 7 in 3st group and 7 in control group and did weight training for 12 weeks. ANCOVA was used for data analysis and significance level was shown α=.05. Peak torque on extensor․flexor of knee joint was significantly higher in groups with weight training done than control group. Peak torque on extensor․flexor of trunk joint was higher in 1st group than 2st group and 3st group and it was significantly higher in 2st group and 3st group than control group. Peak torque on extensor․flexor of ankle joint was significantly higher in 1st group than 2st group, 3st group, and control group.
Muscular Endurance on extensor․flexor of knee joint was significantly higher in groups with weight training done than control group. Muscular Endurance on extensor․flexor of trunk joint and ankle joint was higher in 1st group than 2st group and 3st group and it was significantly higher in 2st group and 3st group than control group. When all the results were combined, training method in which scheduled weekly exercise is exhausted at once is effective for muscle function increases on trunk joint and ankle joint which is important muscle·joint part of Modern dancers.22Nkc
고강도 인터벌 트레이닝이 대학교 조정선수의 유⦁무산소성 운동능력에 미치는 영향
No full text본 연구의 목적은 대학교 조정선수들을 대상으로 고강도 인터벌 트레이닝이 유⦁무산소 운동능력에 미치는 영향을 분석하고 그에 따른 훈련 프로그램을 개발하기 위한 객관적인 정보를 제공하는 것이다. 연구대상은 P대학교에 재학 중인 남자대학생 14명을 대상으로하였으며, 8주간 주 3회 고강도 인터벌 트레이닝을 실시한 후 신체구성, 체력요인을 측정하였다. 또한 20m 왕복오래달리기와 윈게이트테스트를 통해 유산소 운동능력과 무산소 운동능력을 측정하였다. 고강도 인터벌 트레이닝을 실시한 후 체중, 체지방률 및 체질량지수는 사전보다 사후에서 유의하게(p<0.05) 감소하였으며, 체력항목 중 악력 좌⦁우, 팔굽혀펴기, 윗몸일으키기 및 체전굴은 사전보다사후에서 유의하게(p<0.05) 향상되었다. 유산소 운동능력은 사전보다 사후에서 최대산소섭취량이 유의하게(p<0.01) 향상되었으며, 무산소 운동능력은 사전보다 사후에서 체중 당 최고 파워와 체중 당 평균 파워가 유의하게(p<0.01) 향상된 결과가 나타났다. 따라서 8주간대학교 조정선수들을 대상으로 실시한 고강도 인터벌 트레이닝은 선수들의 유산소 운동능력과 무산소 운동능력 향상에 효과적인 트레이닝 방법으로 사료된다.22Nkc
The Effect of mobile health care app image on user satisfaction, revisit intention, and recommendation intention
No full text22Nkc
A 2-stage hybrid position estimation framework in RF fingerprint WPS
No full textThe rapid growth of mobile communication and the proliferation of smart phones have drawn significant attention to Location Based Services (LBS). One of the most important factors in the vitalization of LBS is the accurate position estimation of a mobile device. By focusing on an access points (AP) probabilistic existence, we develop an AP distribution map and a new position estimating framework. The developed approach can significantly enhance a radio fingerprint-based Wi-Fi Positioning System, especially in terms of the algorithms and data management. In comparison with existing approaches of fingerprint pattern matching algorithms, we achieve an improved performance in terms of both the average and deviation of the estimation error. All fingerprint data used in the developed test-bed are harvested from actual radio fingerprint measurements taken throughout Seoul, Korea. This demonstrates the practical usefulness of the proposed methodology.1
Single Layers of WS2 Nanoplates Anchored to Hollow N-doped Carbon Nanofibers as Efficient Electrocatalysts for Hydrogen Evolution
No full textSince hydrogen is considered as one of the most promising energy carriers, alternative to finite fossil fuels, intensive research efforts have been devoted to developing noble metal-free electrocatalysts for hydrogen evolution reaction (HER). In particular, transition metal dichalcogenides (TMDs) such as MoS2 and WS2 have drawn tremendous attention due to their fascinating electrocatalytic activities for HER when they are single-layered or few-layered with numerous catalytically active sites. Unfortunately, their poor intrinsic conductivities hamper their use as electrocatalysts for HER. In this regard, it is an efficient strategy to make a composite, combining single-layered TMDs with highly conductive materials. Herein, single-layered WS2 nanoplates are randomly oriented and uniformly anchored to hollow N-doped carbon nanofibers (WS2@HNCNFs) via coaxial electrospinning and a subsequent two-step thermal treatment. For the coaxial electrospinning, styrene-acrylonitrile (SAN) was used for the core as a sacrificial template while polyacrylonitrile (PAN) and (NH4)2WS4 for the sheath as a robust carbon matrix and single layers of WS2, respectively. The two-step thermal treatment was conducted for the crystallization of WS2 nanoplates, and for the carbonization of the PAN with in situ N-doping. The growth of WS2 nanoplates along the c-axis direction was hindered by the surrounding amorphous carbon matrix, preventing stacking of the WS2 nanoplates. In situ N-doping in the hollow carbon nanofibers was achieved by generated ammonia gas (NH3) as by-product gas during the thermal decomposition of (NH4)2WS4. For comparison, bulk WS2 powder and single layers of WS2 embedded in nitrogen-doped carbon nanofibers were synthesized and electrochemically tested. The distinctive design of the WS2@HNCNFs enables remarkable electrochemical performances. The catalyst electrode exhibited superior electrocatalytic performance with a low overpotential with reduced charge transfer resistance to obtain significant hydrogen evolution, a small Tafel slope of approximately 45 mV/dec, a high exchange current density, and excellent durability. The extraordinary catalytic performance can be attributable to numerous exposed edges of single-layered WS2 and facile electron path ways provided by the hollow N-doped carbon network. In addition, the hollow structure showed increased the Brunauer-Emmett-Teller (BET) surface area, offering easy accessibility for electrolyte to catalytically active sites
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