• Title/Summary/Keyword: dominant period

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Spectrum of the WHO Classification De Novo Myelodysplastic Syndrome: Experience from Southern Pakistan

  • Sultan, Sadia;Irfan, Syed Mohammed;Jawed, Syeda Narisa
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.3
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    • pp.1049-1052
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    • 2016
  • Background: Myelodysplastic syndrome (MDS) is a clonal disorder of hemopoeitic stem cells, characterized by infective hematopoiesis, peripheral cytopenias along with hypercellularity of marrow and marked dysplastic features. Our aim was to study the spectrum of the WHO classification in adult Pakistani patients with MDS at disease presentation. Materials and Methods: This retrospective descriptive study was conducted at Liaquat National Hospital and Medical College, extending from January 2010 to December 2014. Patient data were retrieved from the maintained archives. Results: Overall, 45 patients were diagnosed at our institution with de novo MDS during the study period. There were 28 males and 17 females. Age ranged between 18 and 95 years with a mean of $57.6{\pm}17.4years$. The male to female ratio was 1.7:1. According to the WHO classification, 53.3% had refractory cytopenia with multilineage dysplasia, 22.2% had refractory cytopenia with unilineage dysplasia, 4.4% each had refractory anemia with excess of blasts-1 and II and 15.5% had MDS unclassified. The main presenting complaints were generalized fatigue (60%), fever (33.3%), dyspnea (15.5%), bleeding (13.3%) and weight loss (11.1%). Physical examination revealed pallor in 37.7%, followed by petechial and purpuric rashes in 20% of patients. Hemoglobin was <10 g/dl in 41 (91.1%). Pancytopenia and bicytopenia were noted in 18 (40%) and 14 (31.1%) respectively. Conclusions: MDS in our patients presents at a relatively young age. Refractory c ytopenia with multilineage dysplasia was the dominant disease variant in our setting.

A Statistical Modeling for the Economic Interpretation of Centrality in the International Arms Export (세계 무기 수출 중심성에 관한 통계적 분석과 경제적 의미)

  • Park, Joonsoo;Kim, Sung-Chul
    • The Journal of Society for e-Business Studies
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    • v.25 no.1
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    • pp.177-202
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    • 2020
  • We propose the statistical modeling and empirical results that can be utilized to identify and interpret the structural factors of international arms exports in recent years. The building blocks of research comprise the following questions; which would be the explanatory variables for the changing trend of international arms exports, whether the statistical significance can be verified on those variables and how those are interpreted for the future policy making purpose. We use the dataset of top 40 countries from SIPRI's Arms Transfers Database and analyze several regression models which consist of explanatory variables derived from research hypotheses. The most noticeable result is that the national fiscal reserve is shown to have consistent influence on the arms exports changes. UN security council members' group also has dominant power to make a formation of arms exports market block. Furthermore, gross domestic product and net exports volume in the national economy would seem to be related to changes of international arms exports in post-2000 period as well.

Community sturucture and variation of juveniles in coastal water, Shinsudo, Samchonpo - 2. Seasonal variation (삼천포 신수도 연안에 분포하는 치어류(稚魚類)의 군집구조(群集構造)와 변동(變動) - 2. 계절변동(季節變動))

  • Kim, Yeong-Hye;Kang, Yong-Joo
    • Korean Journal of Ichthyology
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    • v.7 no.2
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    • pp.177-186
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    • 1995
  • To study the fish larval community in the coastal waters off Shinsudo, Samchonpo, samples were collected with long bag net at 2 stations from October 1986 to September 1987. Forty-four species in 29 families were collected during the period of investigation. Engraulis japonicus, Enedrias nebulosus, Ammodytes personatus and Astriconger myriaster predominated in fish assemblage. These four fish species accounted for approximately 96.79% in number and 73.94% in biomass. Number of species, number of individuals and biomass were high during the spring, but low in summer. A peak of diversity(H') for number was found in April 1987, and that for biomass was in October 1986. Four showing dominant species had their own seasonal abundance patterns, a peak of abundance between the species at 2 months intervals.

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Community Structure of Larval Fish Assemblage in the Coastal Waters of South-central Korea during Spring and Summer (봄-여름 남해 중부 연안 자어 군집구조)

  • Yoo, Joon-Taek;Kim, Yeong Hye;Lee, Seung Hwan;Kim, Jin-Koo
    • Korean Journal of Ichthyology
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    • v.29 no.1
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    • pp.80-86
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    • 2017
  • We examined monthly variations in community structure of larval fish assemblage in the coastal waters of south-central Korea in spring and summer, 2016. A total of 31 taxa of larvae were collected during the study period. Engraulis japonicus larvae were predominated in spring than summer. The larvae of Cynoglossus abbreviates, a spring spawners, were exclusively collected in spring, while those of Nibea albiflora, a summer spawners, were exclusively caught in summer. Due to those seasonal differences in abundance of the dominant species, larval fish community was divided into two main seasonal groups (i.e. April~May and June~August). In addition, summer group was divided into two significant subgroups (June~July and August). During August, the larvae of E. japonicus and N. albiflora sharply decreased in abundance due to abnormally high sea water temperature that was raised up to $28^{\circ}C$, with the temperature being out of range of their optimum spawning temperature.

Gait analysis on the condition of arm swing in healthy young adults

  • Koo, Hyun-Min;Lee, Su-Young
    • Physical Therapy Rehabilitation Science
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    • v.5 no.3
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    • pp.149-154
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    • 2016
  • Objective: The arm swing is associated with gait ability in healthy young adults. The purpose of this study was to examine the effects of arm swing during gait in healthy young adults. Design: Cross-sectional study. Methods: Forty-five subjects without any orthopedic or neurological injuries participated in this study. All subjects performed all three conditions according to the arm swing type as follows: first procedure (condition 1), walking as usual without arm swing constraint; second procedure (condition 2), constraint of dominant arm swing walking as usual; third procedure (condition 3), constraint of both arm swing walking as usual. Gait parameters such as gait velocity, stride length, cadence, step time, single limb support, and double limb support were measured in all arm swing conditions performed randomly, with the mean value obtained from three measurements. A rest period of 5 minutes was given to prevent repetition of each condition and learning effect. All data was analyzed using repeated measures ANOVA to notice the changes between arm swing conditions. Results: Within walking conditions, significant difference of gait velocity, stride length, cadence, and double limb support was noticed (p<0.05), except step time and single limb support. Gait velocity and stride length were significant reduced, and in cadence and double limb support were increased (p<0.05). Condition 3 had the most significant decrease of gait ability compared with condition 1 (p<0.05). Conclusions: These finding suggested that constraint arm swing conditions reduced gait ability in healthy young adults. Also, these findings can be utilized as a reference to future studies that not only pelvic, knee and ankle, but also upper limb affect to gait ability.

A literature Review;More Effective Approach for Postpartum Obesity (산후비만의 효과적인 접근을 위한 문헌적 고찰)

  • Ahn, Hye-Lim;Shin, Mi-Sook;Yang, Mi-Sung
    • Journal of Korean Medicine for Obesity Research
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    • v.8 no.1
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    • pp.13-22
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    • 2008
  • Objective Weight change in the postpartum period is a dominant concern of new mothers recently. Postpartum weight retention has important public health implication as well, because retention of gestational weight can be a significant contributor to long-term obesity and associated health risks. This study was designed to collect the latest papers and find more effective approach for postpartum obesity. Methods We searched 81 papers in English from PubMed and selected 41 in favor of our study. In addition to that, we searched 11 papers in Korean and 2 papers in Chinese. Results are as follows. Results and Conclusions These papers show that many different factors were related with postpartum weight retention. This study suggests that moderate weight gain during pregnancy is important to prevent postpartum obesity. Adequate caloric restriction and exercise are needed to prevent from postpartum weight retention. In addition, husbands, some relatives and friends are primary sources for postpartum female to lose and keep up weight. The effect of weight loss associated with lactation significantly differs from paper to paper. There are not many treatments for postpartum weight retention. So, more effective treatments using Korean traditional medicine must be improved even from now on. This study can offer many ideas to treat postpartum weight retention.

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Relative Immigration Activity of the Hibernal Diatom Community in Eutrophic Waters (저온기 부영양 수계 규조군집의 유입능)

  • Yoon, Sung-Ae;Kim, Nan-Young;Kim, Baik-Ho;Hwang, Soon-Jin
    • Korean Journal of Ecology and Environment
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    • v.41 no.3
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    • pp.311-319
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    • 2008
  • To understand the relative immigration activities (RIA) of hibernal diatom community in Lake Ilgam (at the station with and without macrophyte) and River Han (at the station with different current and nutrient), a natural and artificial bed substrate was deposited from 15 to 29 January 2008. For the study period, both waters comprised huge biomass of diatom, over 75% of total abundance. Nutrients in water column, ash-free dry matter (AFDM) and chlorophyll-a (Chl-a) concentration in substrates were decreased with increasing of current in rivers, while in lakes the macrophyte largely affected the diatom community and water quality. Algal RIA in rivers was high at stations with high concentration of nutrient, AFDM and Chl-a, and in high nutrients and no macrophytes in lakes, respectively. The species showing a higher RIA was Nitzschia amphibia in rivers and Aulacoseira italica in lakes, while the dominant species were Navicula sp. in rivers and Syndera acus in lakes, suggesting no relationship between water algal biomass and its RIA. These results suggest that the RIA of stream diatom community depends exclusively on the current, while the planktonic diatom in lake was of the macrophyte.

Ichthyofauna and Fish Community in Lake Paro (파로호의 어류상 및 어류군집)

  • 최재석;장영수;이광열;김진국;권오길
    • Korean Journal of Environmental Biology
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    • v.22 no.1
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    • pp.111-119
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    • 2004
  • The ichthyofauna and community structure in Lake Paro, Korea, was investigated from December 2002 to september 2003. Buying the surveyed period 45 species belonging 12 families were collected. There were 15 Korean endemic species 33.33%, including Hemibarbus mylodon, Aeheilognathus yamatsutae nnd Ooreoperca hem. Dominant species were Zacco platypus (72.41%) and subdominant species were Hemibarbus labeo (9.75%). Also, Opsariichthys uncirostris amurensis (5.98%), Zacco temmincki (2.42%), Rhinogobius brunneus (2.01%) and Hypomesus olidus (0.88%) were numerous. The biomass of collected fishes were Zacco platypus (82,803.15 g), Hemibarbus labeo (32,942.63 g), Opsariichthys uncirostris amurensis (27,482.39 g), Cyprinus carpio (6,502.87 g), Anguilla japonica (3,022.15 g) and Siniperca scherzeri (2,711.05 g). Of the 10 introduced fishes in Lake Paro Cyprinus carpio (Israeli type), Carassius cuvieri, Micropterus salmoides and Lepomis macrochirus were originated form foreign countries but Anguillta japonica, Hemiculter eigenmanni, Hypomesus olidus, Oncorhynchus masou mason, Chaenogobius urotaenius, Rhinogobius giurinus were introduced from other native river systems.

Amphibian Fauna in the Mt. Myungji (명지산 일대의 양서류)

  • 계명찬
    • Korean Journal of Environmental Biology
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    • v.21 no.2
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    • pp.203-207
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    • 2003
  • Amphibian biodiversity, community structure and habitats were surveyed in the Mt. Myungji area from April 2002 to March 2003. During the survey period 2orders, 4 families, 7 species of amphibians were observed. Bombina orientalis (DI =45.1%) was dominant and Bufo stejnegeri (DI = 12.8%), Rana rugosa and Rana dybowskii (DI = 9.9% each) Rana nigromaculata and Rana huanrenensis (DI 1.4% each), and Onycodactylus fisheri (DI = 7.0%) followed. Frequency of occurrence of O. fisheri and B. stejnegeri was largely different according to the altitude and human residence in their habitats.R. nigromaculata and R. huanrenensis showed low frequency of occurrence (<10%) suggesting the decrease in habitation density in this area. The species richness (R'), general diversity (H'), and evenness (E') of amphibians in this area were 0.98, 2.12, and 0.76, respectively, suggesting relatively healthy condition of amphibian community in this area.

Distributional Characteristics of the Meiobenthic Community in Gamak Bay in the South Sea, Korea (남해안 여수 가막만에 서식하는 중형저서동물의 분포 특성)

  • Lee, Heegab;Min, Won Gi;Rho, Hyun Soo;Oh, Je hyeok;Kim, Dongsung
    • Korean Journal of Environmental Biology
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    • v.34 no.2
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    • pp.79-90
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    • 2016
  • This study investigates seasonal variation and spatial distribution of meiobenthic community of Gamak Bay (one of the major bays of southern coastal area of Korea). Total of 6 surveys of 10 stations took place, once in February, June and October of 2009 and through 2010. Community structure, taxon diversity (H') and nematodes/copepods ratio of meiobenthos were studied in Gamak Bay. During the study period, nematodes and harpacticoids were the most dominant taxa among the meiofaunal groups in Gamak Bay. Taxon diversity (H') was the highest at the outer stations and the lowest at the inner stations in the Gamak Bay. The nematodes/copepods ratio was seasonally studied as an index of pollution monitoring for the benthic ecosystem at each station. As a result, nematodes/copepods ratio was the highest at the inner stations and the lowest at the outer stations in Gamak Bay.