• Title/Summary/Keyword: MA Control

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Responses of Ricania sp. (Hemiptera: Ricaniidae) to light and Attraction to Capturing Device (갈색날개매미충(Ricania sp.) 성충의 광 선호성과 성충포획장치의 유인효과)

  • Choi, Duck-Soo;Kim, Hyo-Jeong;Oh, Sang-A;Lee, Jin-Hee;Ma, Kyung-Cheol
    • Korean Journal of Organic Agriculture
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    • v.28 no.3
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    • pp.405-415
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    • 2020
  • In order to effectively control the Ricania sp., we investigated the light response to adults and developed an adult capturing device using light with superior attractiveness. The preference among six light sources such as daylight color, green, etc. for the Ricania sp. adult was favored with daylight color 97 > black 79 = red 79 = blue 79 > green 24 > yellow 13. We have developed an adult catching device using the most preferred daylight colors and behavioral habits of the Ricania sp.. The capture device consisted of two daylight compact lamps (30W, 20W), a yellow plate, and a catcher using water, and caught about 700 individuals a day. The capturing device has a large amount of capturing because adult is activity at high nighttime temperatures, but the capturing amount decreased significantly when the temperature dropped below 23℃. More than 85% of the Ricania sp. adults were trapped for 3 hours from 19:00 to 23:00. Therefore, it is considered that the adult capturing device for the control of Ricania sp. is used from mid July to late August when the night temperature is over 23℃, and lights up from 19:00 to 23:00.

Neuro-inflammation induced by restraint stress causes impairs neurobehavior in mice (스트레스 유발 마우스모델에서 뇌염증 및 신경행동 장애 변화)

  • Oh, Tae woo;Do, Hyun Ju;Kim, Kwang-Youn;Kim, Young Woo;Lee, Byung Wook;Ma, Jin Yeul;Park, Kwang Il
    • Herbal Formula Science
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    • v.25 no.4
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    • pp.483-497
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    • 2017
  • Background : Behavioral stress has been suggested as one of the significant factors that is able to disrupt physiological systems and cause depression as well as changes in various body systems. The stressful events can alter cognition, learning, memory and emotional responses, resulting in mental disorders such as depression and anxiety. Results : We used a restraint stress model to evaluate the alteration of behavior and stress-related blood parameter. The animals were randomly divided into two groups of five animals each group. Furthermore, we assessed the change of body weight to evaluate the locomotor activity as well as status of emotional and anxiety in mice. After 7 days of restraint stress, the body weight had significantly decreased in the restraint stress group compared with the control group. We also observed stress-associated behavioral alterations, as there was a significant decrease in open field and forced swim test, whereas the immobilization time was significantly increased in the stress group compared to the control group. We observed the morphological changes of neuronal death and microglia by immunohistochemistry and western blot. In our study restraint stress did not cause change in neuronal cell density in the frontal cortex and CA1 hippocampus region, but there was a trend for an increased COX-2 and iNOS protein expression and microglia (CD11b) in brain, which is restraint stress. Conclusion : Our study, there were significant alterations observed in the behavioral studies. We found that mice undergoing restraint stress changed behavior, confirming the increased expression of inflammatory factors in the brain.

Study on Pharmacological Activity of Sipjeondaebotang by Difference in Component Ratio between Astragali Radix and Cinnamomi Cortex (십전대보탕에서 황기.육계의 함량 변화에 따른 약리활성 비교 연구)

  • Lee, Ho-Young;Ha, Hye-Kyung;Jung, Da-Young;Choi, Ji-Yoon;Lee, Nam-Hun;Ma, Jin-Yeul;Yu, Young-Beob;Shin, Hyeun-Kyoo
    • The Journal of Korean Medicine
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    • v.29 no.1
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    • pp.156-166
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    • 2008
  • Objective : Pamooltang (PM) and Sipjeondaebotang (SC) are used in Korea to treat many diseases such as sterility, menstrual disorder, and general prostration. We made a comparative study of PM and SC which are different in component ratio between Astragalus membranaceus BUNGE (AC) and Cinnamomum cassia PRESL. (CC). Methods : Anti-oxidation was studied by 1.1.-diphenyl-2-picrylhydrazyl (DPPH) assay and anti-inflammation was investigated by prostaglandin $E_2\;(PGE_2)$ and nitric oxide (NO) inhibition assay. For immune response activities, this study used NO synthesis on RAW 264.7 cells and splenocyte proliferation. Results : The results showed that PM and SC components had no significant effect of anti-oxidation or anti-inflammation. However, we observed their effects upon inducible NO synthesis in Raw 264.7 cells. The SC2 stimulated NO synthesis $11.42\pm1.36{\mu}M$ (control; $0.89\pm0.00{\mu}M$). PM and SC components had the effect of immune response which in a dose-dependent manner significantly induced the splenocyte proliferation. The splenocyte proliferation induced by SC2 was higher than others at the concentration of 1, 10, 100, 1000 and 2000 ${\mu}g/ml$. The SC8 was shown to up-regulate IgG, 100 ${\mu}g/ml$ 3.3 times, 1000 ${\mu}g/ml$ 2.6 times as a control. Conclusions : These results may have important implications for our understanding of the ratios of AC and CC in SC.

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Preparation and Quality Characteristics of Rice Breads (쌀이 주재료인 식빵의 제조 및 품질특성)

  • Kim, So-Joong;Kim, Hang-Jung;Ma, Seung-Jin;Kim, Seon-Jae
    • Journal of the Korean Society of Food Culture
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    • v.20 no.4
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    • pp.433-437
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    • 2005
  • The characteristic properties of rice breads produced from several conditions were investigated. The rice bread made in control condition (wheat flour), RF 3 (rice and wheat flour mixing) condition and RF 1 (rice, gluten and modified starch mixing) showed relatively higher volumethan others. The crust and crumb color were measured by Humter colory meter. The rice breads making on RF 5 and RF 6 condition showed higher crust L-value and the crumb L-value of the bread from RF 1 condition was higher than that from other condition. On the texture measuring by texture analyzer, hardness of the bread made from RF 1 and RF 2 conditions and cohesiveness of that from RF 3 condition were lower than control. However the significant higher level of the springiness and chewiness were showed in the bread from RF 1, RF 2 and RF 3 condition. The bread containing 85% of rice, 5% of rice, 5% of gluten and 10% of modified starch which was made in RF 1 condition obtained significant high overall acceptance score by sensory evaluation.

A Study on the Research Trends in Unmanned Surface Vehicle using Topic Modeling (토픽모델링을 이용한 무인수상정 기술 동향 분석)

  • Kim, Kwimi;Ma, Jungmok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.7
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    • pp.597-606
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    • 2020
  • Because the USV(Unmanned Surface Vehicle) is capable of remote control or autonomous navigation at sea, it can secure the superiority of combat power while minimizing human losses in a future combat environment. To plan the technology for the development of USV, the trend analysis of related technology and the selection of promising technology should be preceded, but there has been little research in this area. The purpose of this paper was to measure and evaluate the technology trends quantitatively. For this purpose, this study analyzed the technology trends and selected promising/declining technologies using topic modeling of papers and patent data. As a result of topic modeling, promising technologies include control and navigation, verification/validation, autonomous level, mission module, and application technology, and declining technologies include underwater communication and image processing technology. This study also identified new technology areas that were not included in the existing technology classification, e.g., technology related to research and development of USV, artificial intelligence, launch/recovery, and operation, such as cooperation with manned and unmanned systems. The technology trends and new technology areas identified through this study may be used to derive key technologies related to the development of the USV and establish appropriate R&D policies.

The Effect of Oral Narration Learning for Children's Forest Fairy Tale on Self-Emotional Regulation and Community Spirit Cultivation (유아의 숲동화 구연학습이 자기감정조절과 공동체의식 함양에 미치는 효과)

  • Kang, Young-sik;Ma, Ji-soon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.7
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    • pp.112-124
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    • 2018
  • This study examines the effect of oral narration learning for children's forest fairy tales on self-emotional regulation and community spirit cultivation. To achieve this aim, experiments were conducted involving 40 children in S city during 16 sessions over a period of 8 weeks. Findings showed that the experimental group with oral narration learning regarding forest fairy tales was higher than the control group, confirming the usefulness of oral narration learning for forest fairy tales. In particular, the experimental group was higher than the control group in basic lifestyle, community spirit, sociality development and self-awareness of community spirit factors. In other words, children can focus their attention on fairy tales by reading, listening and directly experiencing fairy tale materials in nature as communication with nature in forest experience activities, and can collaborate with peers based on their emotional connection with nature. Their ability to practice principles and order as well as to improve relationships with peers and increase self-emotional regulation is enhanced through experience with fairy tale stories. Such results imply that the utilization of forest fairy tales needs to be enhanced, as forest fairy tale-linked activities have a positive educational effect on community spirit cultivation as well as self-emotional regulation.

Administration of vitamin D3 by injection or drinking water alters serum 25-hydroxycholecalciferol concentrations of nursery pigs

  • Jang, Young Dal;Ma, Jingyun;Lu, Ning;Lim, Jina;Monegue, H. James;Stuart, Robert L.;Lindemann, Merlin D.
    • Asian-Australasian Journal of Animal Sciences
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    • v.31 no.2
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    • pp.278-286
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    • 2018
  • Objective: Two experiments were conducted to evaluate vitamin $D_3$ administration to nursery pigs by injection or in drinking water on serum 25-hydroxycholecalciferol ($25-OHD_3$) concentrations. Methods: At weaning, 51 pigs (27 and 24 pigs in experiments 1 and 2, respectively) were allotted to vitamin $D_3$ treatments. Treatments in experiment 1 were: i) control (CON), no vitamin administration beyond that in the diet, ii) intramuscular (IM) injection of 40,000 IU of vitamin $D_3$ at weaning, and iii) water administration, 5,493 IU of vitamin $D_3/L$ drinking water for 14 d post-weaning. Treatments in experiment 2 were: i) control (CON), no vitamin administration, and ii) water administration, 92 IU of $d-{\alpha}-tocopherol$ and 5,493 IU of vitamin $D_3/L$ drinking water for 28 d post-weaning. The lightest 2 pigs within each pen were IM injected with an additional 1,000 IU of $d-{\alpha}-tocopherol$, 100,000 IU of retinyl palmitate, and 100,000 IU of vitamin $D_3$. Results: In both experiments, serum $25-OHD_3$ was changed after vitamin $D_3$ administration (p<0.05). In experiment 1, injection and water groups had greater values than CON group through d 35 and 21 post-administration, respectively (p<0.05). In experiment 2, serum values peaked at d 3 post-administration in the injection groups regardless of water treatments (p<0.05) whereas CON and water-only groups had peaks at d 14 and 28 post-administration, respectively (p<0.05). Even though the injection groups had greater serum $25-OHD_3$ concentrations than the non-injection groups through d 7 post-administration regardless of water treatments (p<0.05), the water-only group had greater values than the injection-only group from d 21 post-administration onward (p<0.05). Conclusion: Serum $25-OHD_3$ concentrations in pigs increased either by vitamin $D_3$ injection or drinking water administration. Although a single vitamin $D_3$ injection enhanced serum $25-OHD_3$ concentrations greater than water administration in the initial period post-administration, a continuous supply of vitamin $D_3$ via drinking water could maintain higher serum values than the single injection.

Genetic Variants at 6p21.1 and 7p15.3 Identified by GWASs of Multiple Cancers and Ovarian Cancer Risk: a Case-control Study in Han Chinese Women

  • Li, Da-Ke;Han, Jing;Liu, Ji-Bin;Jin, Guang-Fu;Qu, Jun-Wei;Zhu, Meng;Wang, Yan-Ru;Jiang, Jie;Ma, Hong-Xia
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.1
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    • pp.123-127
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    • 2014
  • A recent study summarized several published genome-wide association studies (GWASs) of cancer and reported two pleiotropic loci at 6p21.1 and 7p15.3 contributing to multiple cancers including lung cancer, noncardia gastric cancer (NCGC), and esophageal squamous-cell carcinoma (ESCC) in Han Chinese. However, it is not known whether such genetic variants have similar effects on the risk of gynecologic cancers, such as ovarian cancer. Hence, we explored associations between genetic variants in 6p21.1 and 7p15.3 and ovarian cancer risk in Han Chinese women. We performed an independent case-control study by genotyping the two loci (rs2494938 A > G at 6p21.1 and rs2285947 A > G at 7p15.3) in a total of 377 ovarian cancer cases and 1,034 cancer-free controls using TaqMan allelic discrimination assay. We found that rs2285947 at 7p15.3 was significantly associated with risk of ovarian cancer with per allele odds ratio (OR) of 1.33 [95% confidence interval (CI): 1.08-1.64, P=0.008]. However, no significant association was observed between rs2494938 and ovarian cancer risk. Our results showed that rs2285947 at 7p15.3 may also contribute to the development of ovarian cancer in Han Chinese women, further suggesting pleiotropy of 7p15.3 in multiple cancers.

Comprehensive Assessment of Associations between ERCC2 Lys751Gln/Asp312Asn Polymorphisms and Risk of Non-Hodgkin Lymphoma

  • Zhou, Jue-Yu;He, Li-Wen;Liu, Jie;Yu, Hai-Lang;Wei, Min;Ma, Wen-Li;Shi, Rong
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.21
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    • pp.9347-9353
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    • 2014
  • Background: Excision repair crossing-complementing group 2 (ERCC2), also called xeroderma pigmentosum complementary group D (XPD), plays a crucial role in the nucleotide excision repair (NER) pathway. Previous epidemiological studies have reported associations between ERCC2 polymorphisms and non-Hodgkin lymphoma (NHL) risk, but the results have remained controversial. Materials and Methods: We conducted this meta-analysis based on eligible case-control studies to investigate the role of two ERCC2 polymorphisms (Lys751Gln and Asp312Asn) in determining susceptibility to NHL. Ten case-control studies from several electronic databases were included in our study up to August 14, 2014. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using fixed- or random-effects models to estimate the association strength. Results: The combined results based on all studies did not show any association between Lys751Gln/Asp312Asn polymorphisms and NHL risk for all genetic models. Stratified analyses by histological subtype and ethnicity did not indicate any significant association between Lys751Gln polymorphism and NHL risk. However, a significant reduced risk of NHL was found among population-based studies (Lys/Gln versus Lys/Lys: OR=0.87, 95% CI=0.77-0.99, P=0.037) but not hospital-based studies. As for Asp312Asn polymorphism, there was no evidence for the association between this polymorphism and the risk of NHL in all subgroup analyses. Conclusions: This meta-analysis suggests that there may be no association between Lys751Gln/Asp312Asn polymorphism and the risk of NHL and its two subtypes, whereas ERCC2 Lys751Gln heterozygote genotype may provide protective effects against the risk of NHL in population-based studies. Therefore, large-scale and well-designed studies are needed to clarify the effects of haplotypes, gene-gene, and gene-environment interactions on these polymorphisms and the risk of NHL and its different histological subtypes in an ethnicity specific population.

An Emotional Self-Regulation Program for Obese Children: Pilot Study Using Mixed Methods (비만아동을 위한 정서적 자기조절 프로그램의 개발 및 효과: 혼합방법론의 적용)

  • Kim, Hee-Soon;Ma, Yu-Mi;Park, Ji-Young;Kim, Seung-Hyun
    • Child Health Nursing Research
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    • v.19 no.3
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    • pp.187-197
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    • 2013
  • Purpose: The purpose of the study was to develop an emotional self-regulation program for obese children and to examine the program's effectiveness on depression, eating habits, and body mass index. Methods: The emotional self-regulation program was developed from theory-based strategies and a pre-post pilot study was conducted with 46 children (19: intervention, 27: control). The program included 6 weekly group sessions over 2 months. The embedded experimental model of concurrent mixed methods was used to better understand research outcomes by converging both quantitative and qualitative data. Anthropometric measurements and surveys were performed before and after the intervention. Three focus group interviews were conducted with all participants after intervention to explore their experiences. Results: The intervention group displayed decreased depression levels in the quantitative outcomes. The participants also expressed positive outcomes such as improvements in confidence, impulse management, intimacy, happiness, and losing weight. Conclusion: These findings suggest that emotional self-regulation skills are crucial factors for obese children not only to manage their emotional problems but also to control their weight. Further research is needed with a larger sample size and randomized controlled trials.