• Title/Summary/Keyword: GROUP BY

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Effect of endurance exercise during acute stage on hindlimb muscles of stroke induced rat (지구력 운동이 급성기 뇌졸중 쥐의 뒷다리근 질량에 미치는 영향)

  • An, Gyeong-Ju;Lee, Yoon-Kyong;Im, Ji-Hae;Choi, S-Mi;Choe, Myoung-Ae
    • Journal of Korean Biological Nursing Science
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    • v.2 no.2
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    • pp.67-80
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    • 2000
  • The purpose of this study was to identify hindlimb muscle atrophy in stroke induced rat and determine the effect of endurance exercise on body weight, weight of hindlimb muscle during 7 days after stroke induction. Thirty four male Sprague-Dawley rats with 200-270g body weight were divided into four groups : control, control+exercise(Con+Ex), stroke, and exercise after stroke(St+Ex) group. The control group and Con+Ex group received sham operation and the stroke group and St+Ex group received right MCA occlusion operation by using silicon-coated probe. The Con+Ex and St+Ex groups ran on a treadmill for 20min/day at 10m/min and $10^{\circ}grade$. Daily body weight and diet intake were measured every morning for 7 days. Cerebral infarction of stroke and St+Ex groups were identified by staining with TCC for 30minutes. The data were analyzed by Kruskal-Wallis test and Mann-Whitney U test using the SPSSWIN 9.0 program. Body weight of the control group at the 7th day increased by 18.3% significantly from the first day of experiment, that of the stroke group at the 7th day decreased by 6.7% significantly compared to the day of receiving right MCA occlusion operation. Body weight of the Con+Ex group at the 7th day increased by 10.3% significantly form the first day of experiment, that of St+Ex group at the 7th day also increased by 13.4% significantly compared to the day of receiving right MCA occlusion operation. The total amount of diet in stroke group decreased significantly compared to that of St+Ex and that of control group. In stroke group the wet weight of both sides of soleus, plantaris, and gastrocnemius muscles decreased significantly compared to that of control group. The relative weight of affected(left) plantaris and gastrocnemius muscles decreased significantly compared to that of the control group. The difference between the weight of affected and unaffected soleus, plantaris, and gastrocnemius muscles were not significant in stroke group. The wet weight of right gastrocnemius muscles in Con+Ex group increased compared to that of control group. The relative weight of right gastrocnemius muscle increased significantly compared to that of the control group. The wet weight of St+Ex group increased significantly compared to that of the stroke group in both sides of soleus, plantaris, and gastrocnemius muscles. The relative weight of affected plantaris muscle increased significantly compared to that of the stroke group. The difference between the weight of affected and unaffected soleus, plantaris, and gastrocnemius muscles were not significant in St+Ex group. Body weight and wet weight of soleus, plantaris, and gastrocnemius muscles in the St+Ex group did not recover to the values of control group. Based on these results, it can be suggested that endurance exercise during acute stage of stroke can reduce muscle atrophy related to denervation, inactivity and undernutrition.

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A Study on the Materialism of Korean and Japan Undergraduates (한 . 일 여자대학생들의 물질주의성향)

  • 김정숙;권정원
    • Journal of Families and Better Life
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    • v.21 no.6
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    • pp.27-41
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    • 2003
  • The objective of this study was to find variables related to materialism of university students in Korea and Japan. A questionnaire research method was conducted and 477 samples were selected. Korean university students have higher materialism than Japanese university students. Korean undergraduates are influenced by reference group, but Japanese university students are influenced by group identity. Materialism of Korean university students are influenced by nonmaterialism, reference group, perception of living level, self concept, pocket money, mother's job. Materialism of Japan university students is influenced by nonmaterialism, group identity, perception of living level, grade. The strongest predictor of materialism of Korean university students is nonmaterialism, followed by reference group. The strongest predictor of materialism of Japanese university students is nonmaterialism, followed by group identity.

The Characteristics of Career Attitude on the College Students Specializing in Hotel and Culinary by Personality Type (전문대학 조리과 학생들의 진로태도 유형별 성격 연구)

  • Kim, Jong-Hoon
    • Journal of the Korean Home Economics Association
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    • v.44 no.4 s.218
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    • pp.49-63
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    • 2006
  • The purpose of this study was to understand the character of career attitude according to the group type which was identified and measured by Q methodology. The subjects were 38 junior students attending hotel & food service culinary management at Kyungnam College of Information & Technology. For the study, 88 variances of Lee's career attitude were used. In the career attitude items, 26 variances of career attitude were selected by factor analysis. The 26 variances explained 70.44% of all variances. Twenty-six variances were used on Q sorting from which 9 group types were identified by SPSS window program, and these 9 occupied 75.627%n of all variance. The groups were classified into two parts extroversion and introversion. Four groups(1, 3, 6, and 9) were identified as extroversion, and 5 groups(2, 4, 5, 7, and 8) as introversion. Group 1 was explained 10.270% of all groups, group 2(14.352%), group 3(10.270%), group 4(7.527%), group 5(6.314%), group 6(5.726%), group 7(5.469%), group 8(5.006%), and group 9(4.145%). Group 1 was named as "active challenge type", group 2 as "passive consideration type", group 3 as "realistic leader type", group 4 as "conservative challenge oriented type", group 5 as "conservative harmony type", group 6 as "arbitrary plan oriented type", group 7 as "realistic stability type", group 8 as "conservative creation type" and group 9 as "conservative reality type".

Efficient Computation of Grouping Sets Queries Using MapReduce (맵리듀스에서 Grouping Sets 질의의 효율적인 계산 기법)

  • Park, So-Jeong;Park, Eun-Ju;Lee, Ki Yong
    • Proceedings of the Korea Information Processing Society Conference
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    • 2014.11a
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    • pp.783-786
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    • 2014
  • 맵리듀스(MapReduce)는 대용량의 데이터를 여러 컴퓨터에서 분산, 병렬 처리하는 프레임워크이다. Grouping sets 질의는 사용자가 지정한 여러 개의 group-by들을 모두 구하는 질의로서, 롤업(rollup)과 큐브(cube)가 너무 많은 결과를 반환하는 단점을 보완하여 원하는 group-by들에 대한 결과만 얻을 수 있도록 한다. 본 논문은 맵리듀스 환경에서 grouping sets 질의를 효율적으로 계산하는 방법을 제안한다. 제안 방법은 grouping sets 질의를 2개의 맵리듀스 잡(job)을 통해 단계적으로 계산한다. 첫 번째 맵리듀스 잡은 grouping sets 질의에 포함된 group-by들이 모두 계산될 수 있는 '부모' group-by를 먼저 계산한다. 두 번째 맵리듀스 잡은 부모 group-by를 입력으로 하여 grouping sets 질의에 포함된 group-by들을 각각 계산한다. 부모 group-by의 크기가 입력 데이터의 크기에 비해 매우 작은 경우, 제안 방법은 입력 데이터로부터 각 group-by를 독립적으로 구하는 단순 방법보다 좋은 성능을 보인다. 실험을 통해 제안 방법이 각 group-by를 독립적으로 구하는 단순 방법보다 좋은 성능을 가짐을 보인다.

The Efficacy of Adjusting Leg Length Inequality by Chuna Manual Treatment for Post-Stroke Hemiplegia (뇌졸중 편마비 환자에서 추나요법을 통한 하지길이차이 교정의 효과)

  • Kwon, O-Gon;Jang, Woo-Seok;Woo, Chang-Hoon;An, Hee-Duk
    • Journal of Korean Medicine Rehabilitation
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    • v.19 no.2
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    • pp.187-202
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    • 2009
  • Objectives : The purpose of this study is to investigate the efficacy of adjusting leg length inequality(LLI) by chuna manual treatment for post-stroke hemiplegia. Methods : 39 patients with stroke-originated hemiplegia who had leg length inequality were included in this study. Chuna manual treatment at pelvic girdle was applied to 20 patients and they had been treated by general oriental rehabilitation therapy(test group). The other 19 patients had been treated by general oriental rehabilitation therapy only(control group). Outcomes were assessed by Modified Barthel Index(MBI), Berg Balance Scale(BBS), lower extremity Fugl-Meyer Assessment(FMA) at the point of beginning and end of the study. Results : 1. In terms of activity of daily living(ADL), test group showed statistically meaningful differences compared to control group(p<0.05). In subacute group(onset had been past under 6 months), test group didn't showed statistically meaningful differences compared to control group. In chronic group(onset had been past over 6 months), test group didn't showed statistically meaningful differences compared to control group. 2. In terms of lower extremity function and balance, test group showed statistically meaningful differences compared to control group(p<0.05). In subacute group, test group didn't showed statistically meaningful differences compared to control group. In chronic group, test group showed statistically meaningful differences compared to control group(p<0.01). 3. In terms of lower extremity function of hemiplegic side, test group showed statistically meaningful differences compared to control group(p<0.05). In subacute group, test group didn't showed statistically meaningful differences compared to control group. In chronic group, test group showed statistically meaningful differences compared to control group(p<0.05). Coclusions : Adjusting LLI by chuna manual treatment is efficacious for rehabilitation of stroke-originated hemiplegia, in terms of ADL, balance and lower extremity function, and is especially efficacious for chronic patients.

A Study of Satisfaction About Dental technician's Post and Laboratory in Great Cities (일부(一部) 대도시(大都市) 지역(地域) 치과기공사(齒科機工士)의 직업(職業) 및 직업장(職業場) 만족도(滿足度)에 관한 조사연구(調査硏究))

  • Lee, Tea-Jung;Lee, Myung-Kon
    • Journal of Technologic Dentistry
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    • v.7 no.1
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    • pp.41-51
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    • 1985
  • This study has been to survey the present situation of satisfaction to the occupation and dental laboratory by means of selscting 200 dental technicians who are woked in Pusan, Deagu, Kwangju, Deajun. Questionaires were distributed to them and the summerized results were as follows; 1. In general, the dental technician's satisfaction of the occpation was revealed as moderate(Mn, 2.83), the dental technician's satisfaction of the laboratory was revealas moderate(Mn, 2.80). The highest degree item out of the satisfaction of occpation was the outlook(Mn, 3.23), and the lowest degree item was the advancement and the rise to a high position(Mn, 2.22). The highest degree item out of the satisfaction of laboratory was dental material(Mn, 3.07), and the lowest degree item was the equipment of dust collection(Mn, 2.49) 2. By age, the highest degree item out of the satisfaction of occpation was 30 to 43 group(Mn, 3.28), 50 and over group was the lowest degree item(Mn, 2.89). The highest degree item out of the satisfaction of laboratory was 40 to 50 group(Mn, 3.10), the lowest degree item was 35 to 39 group(Mn, 2.88). 3. By school career, the satisfaction of occpation and dental laboratory were higher in the graduated college group than the graduated highschool group. 4. By personal health state, the highest degree item of the satisfaction of occpation was the health group(Mn, 3.25). The highest degree item of the satisfaction of laboratory was the unhealthy group(Mn, 3.07). 5. By religion, the satisfaction if iccupation of laboratory ws higher in the religious group than the non-religious group. 6. By job career, the highest degree item of occupation satisfaction was 15 to 20 years group(Mn, 3.27), the lowest degree item was 20 and over group(Mn, 3.02). The highest degree item out of the satisfaction of laboratory was 15 to 20 years group(Mn, 3.05), The lowest degree item was 7 to 10 years group (Mn, 2.90). 7. By job position, the highest degree item out of satisfaction of occupation was the chief of laboratory group(Mn, 3.33), the head of laboratory group was the lowest degree item(Mn, 3.07). The hightest degree item out of the satisfaction of laboratory was the head of laboratory group(Mn, 3.10), the lowest degree item was the chief of laboratory group(Mn, 2.88). 8. By the place of employment, the degree of occpational satisfaction by items was found that the highest degree in the group engagel in general hospital(Mm, 3.43), the group engaged in dental clinic and hospital(Mn. 3.24), and the dental laboratory group(Mn. 3.14) in order. The difference among the group was significant emough(P<0.05). The highest degree item out of the satisfaction of laboratory was dental laboratory group(Mn. 2.70). The difference among the group was significant emough(P<0.01). 9. By monthly salary, the highest degree item out of the satisfaction of occupation was ₩500,000 to 600,000 group(Mn. 3.32), the lowest degree item was ₩600,000 and over group(Mn, 3.07). The highest degree item out of the laboratory satisfaction was ₩100,000 to 200,000 group(Mn, 3.03), the lowest degree group was ₩300,000 to 400,000 group(Mn, 2.95). 10. As compared with the degree of satisfaction according to job satisfaction, the highest degree item out of the occupational satisfaction was much satisfied group(Mn, 3.65), the lowest degree item was non-satisfied group(Mn, 2.68). The difference among the group was significant enough(P<0.05). The highest degree item out of the satisfaction of laboratory was non-satisfied group(Mn, 30.9), the lowest degree item was satisfied group(Mn, 2.84). The difference among the group was significant enough(P<0.01).

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The effects of Samduhaejungtang-gamibang on liver injury of rats induced by $CCl_4$ and d-Galactosamine (삼두해정탕가미방이 $CCl_4$ 및 d-Galactosamine에 依하여 誘發된 흰쥐의 肝損傷에 미치는 影響)

  • Kang, Jae-Chun;Lee, Sang-Min
    • The Journal of Internal Korean Medicine
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    • v.20 no.1
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    • pp.181-197
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    • 1999
  • In order to investigate the protective effect of Samduhaejungtang-gamibang on the liver injury of rats induced by $CCl_4$ and d-galactosamine, the serum transaminase(GOT& GPT) alkaline phosphatase(ALP), lactic dehydrogenase(LDH) for enzyme activities and triglyceride, total bilirubin amounts for serum component were measured. All animals were divided into 4 groups, those were normal group(untreated), control group(treated with vehicle 0.9% Saline solution), sample Ⅰ group(1500mg/kg administrated), sample Ⅱ group(3000mg/kg administrated). The results were as follows: 1. The inhibitory effects of the serum GOT activities in rats induced by $CCl_4$ were noted in sample Ⅱ group(p<0.01). In serum GPT activities, sample Ⅱ group(p<0.05) only showed the inhibitory effects. 2. The inhibitory effects of the serum ALP activities in rats induced by $CCl_4$ were noted in sample Ⅱ group(p<0.01) 3. The inhibitory effects of the serum LPH activities in rats induced by $CCl_4$ were noted in sample Ⅱ group, but it is not recognized statistically. 4. The increases effects of the serum triglyceride content level in rats induced by $CCl_4$ were inhibited in both sample Ⅰ group(p<0.05) and sample Ⅱ group(p<0.01) 5. The increases effects of the serum total bilirubin content level in rats induced by $CCl_4$ were inhibited in sample Ⅱ group(p<0.05) 6. The inhibitory effects of the serum GOT, GPT activities in rats induced by d-galactosamine were noted in sample Ⅱ group (p<0.001), but sample Ⅰ group was not recognized. 7. The signiticantly inhibitory effects of in the serum LDH activities in rats induced by d-galactosamine were noted in both sample Ⅰ group(p<0.05) and sample Ⅱ group (p<0.001) 8. The increases of the serum ALP content level in rats induced by d-galactosamine were inhibited in sample Ⅱ group(p<0.05) 9. The increases of the serum total bilirubin content level in rats induced d-galactosamine were inhibited in sample Ⅱgroup(p<0.05) According to the above results, it is considered that Samduhaejungtang-gamibang has protective effect against liver injury in rats induced by $CCl_4$ and d-galactosamine. So it is required to study about the actions of mutual relation of medicines and patho-mechanism by experiment.

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The Effects of Sunghyangjunggi-san and Gwackhyangjunggi-san Extracts on Cerebral Ischemia Following the MCA Occlusion in Rat (흰쥐의 중대뇌동맥 결찰로 유발된 뇌허혈에서 성향정기산과 곽향정기산이 신경세포에 미치는 효과)

  • 김선영;이원철
    • The Journal of Korean Medicine
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    • v.22 no.4
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    • pp.142-150
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    • 2001
  • Objectives : The purpose of this investigation is to evaluate and compare the effects of Sunghyangjunggi-san (SH) and Gwackhyangjunggi-san (GH) extracts on reperfusion following the MCA occlusion in rats. Methods : To evaluate the effect of Sunghyangjunggi-san (SH) and Gwackhyangjunggi-san (GH) extracts on reperfusion following the MCA occlusion, the volume of cerebral infarction and edema were measured and the change of the CA1 pyramidal neurons in the hippocampus were investigated by light microscopy. Results : 1. The infarction volume of the control group was 23.6%, that of the GH group was 23.7%, and that of the SH group was 18.5%. 2. The brain edema volume of the control group increased by 16% compared with that of the normal group, that of the GH group increased by 14%, and that of the SH group increased by 9%. 3. The number of surviving pyramidal neurons in the CAI area of the hippocampus was investigated under light microscopy. In the control group, few surviving pyramidal neurons excisted (mean 6.4) and similarly in the GH group (mean 8.5), but in the SH group, the number of surviving pyramidal neurons was significantly higher, to the mean 18.4. Conclusions : According to the above results, in regard to the damage of neurons following cerebral ischemia, the GH group has little effect of the protection of neurons compared to the control group, but the SH group has a remarkable effect.

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Marginal and Internal Fit of Copings Made by CAD/CAM using Different Scanning Methods (서로 다른 스캔 방식을 이용하여 CAD/CAM에 의해 제작된 코핑의 변연 및 내면의 적합성)

  • Cho, Young Beom;Chae, Heon Chung;Kim, Hee Jung
    • Journal of Dental Rehabilitation and Applied Science
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    • v.29 no.4
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    • pp.366-376
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    • 2013
  • The purpose of this study is to evaluate the marginal and internal fit of coping made by CAD/CAM using different scanning methods. Zirconia coping was made by each CAD/CAM system followed by intra-oral scanning, model optical scanning and model contact scanning. It was embedded into Epoxy Resin and was cut by buccal to lingual. AMD (Absolute marginal discrepancy), MG (Marginal gap), GA (Gap of axial), GL (Gap of line angle) and GO (Gap of occlusal) of each sample were measured. The result is as followed; 1. The mean value of AMD in Group 1, Group 2, Group 3 are $141.21{\pm}42.94{\mu}m$, $140.63{\pm}31.64{\mu}m$, $109.37{\pm}28.42{\mu}m$. The averages of MG in Group 1, Group 2, Group 3 are $82.52{\pm}43.99{\mu}m$, $90.28{\pm}27.93{\mu}m$, $66.55{\pm}28.77{\mu}m$. Statistically there is no difference in AMD and MG among the three Groups (Anova, P>0.05). 2. GA of Group 2 revealed statistically difference compared with Group 1 and Group 3 (Anova, P<0.05). 3. GL and GO of Group 1 showed statistically significant differences compared with Group 2 and Group 3 (Mann-whitney test (P<0.05). Zirconia copings made by 3 ways of scanning methods have no difference with conventional ceramics in AMD and MG which are known as the most important factors.

A Novel Authenticated Group Key Distribution Scheme

  • Shi, Run-hua;Zhong, Hong;Zhang, Shun
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.10 no.2
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    • pp.935-949
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    • 2016
  • In this paper, we present a novel authenticated group key distribution scheme for large and dynamic multicast groups without employing traditional symmetric and asymmetric cryptographic operations. The security of our scheme is mainly based on the basic theories for solving linear equations. In our scheme, a large group is divided into many subgroups, where each subgroup is managed by a subgroup key manager (SGKM) and a group key generation center (GKGC) further manages all SGKMs. The group key is generated by the GKGC and then propagated to all group members through the SGKMs, such that only authorized group members can recover the group key but unauthorized users cannot. In addition, all authorized group members can verify the authenticity of group keys by a public one-way function. The analysis results show that our scheme is secure and efficient, and especially it is very appropriate for secure multicast communications in large and dynamic client-server networks.