• Title/Summary/Keyword: reassessment

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Taxonomic Reassessment of the Genus Polysiphonia (Rhodomelaceae, Rhodophyta): Morphology and Reproduction of Neosiphonia decumbens and N. harlandii (홍조 붉은실속 식물의 분류학적 재검토: 누은새붉은실과 가시새붉은실의 형태와 생식)

  • Kim, Myeong-Suk
    • ALGAE
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    • v.18 no.2
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    • pp.107-119
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    • 2003
  • Neosiphonia is separated from the traditionally well known genus Polysiphonia (Rhodomelaceae, Rhodophyta) and 12 species includes in Korea. In this study, the vegetative and reproductive developments of two Neosiphonia species, N. decumbens (Segi) M.S. Kim et I.K. Lee and N. harlandii (Harvey) M.S. Kim et I.K. Lee, are reinvestigated. N. decumbens is diagnosed by following combination of the characters: plants 1-3 cm high, dwarf, decumbent, main axes indistinct, irregularly branched in dichotomous manner, and alternately or secundly ramified with wide angles above. N. harlandii is distinguished by the features: plants 4-8 cm high, usually solitary and saxicolous, erect, densely corticated at base of distinct main axes, rather irregularly alternate in branch, and with cicatrigenous branchlets developed numerously on every part of frond. The two species share typical characteristics of the genus Neosiphonia, such as a base attached by unicellular rhizoids, cut off by cross wall, pericentral cells in 4, trichoblasts moderately developed near the apex of branches, leaving persistent scar-cells, tetrasporangia arranged in a spiral series, procarps with 3-celled carpogonial branch, and spermatangial branches arising as a primary branch of trichoblast. Taxonomy of the two Neosiphonia in regard to Polysiphonia is discussed.

Role of Acrosomal Matrix in Mammalin Fertilization (포유류 수정과정에서 정자 첨체기질의 기능)

  • Kim, Kye-Seong;George L. Gerton
    • Proceedings of the Korean Society of Embryo Transfer Conference
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    • 2001.05b
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    • pp.4-16
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    • 2001
  • Sperm competent for fertilization can become capacitated, bind to the zona pellucida (ZP)of an egg in a specific manner, and complete acrosomal exocytosis. Failure to carry out these functions results in infertility. Although the interactions between the ZP and the plasma membrane overlying the sperm acrosome have been considered important for sperm-egg recognition and signalling recent results have prompted a reassessment of current paradigms concerning these interactions. In this review, we're going to discuss about the roles of the acrosomal matrix, the particulate component of the acrosomal contents, in fertilization. The general hypothesis is that acrosomal exocytosis leads to the exposure of acrosomal matrix proteins that become de facto extracellula matrix(ECM) on the surface of the sperm head, and that the dynamic interactions of this newly-exposed sperm ECM with the egg ECM (the ZP) govern sperm-egg recognition and sperm penetration of the ZP. Informations from these experiments may provide new ways to address the poor ZP binding of sperm from some human infertility patients and may offer new avenues for contraception through the disruption of purposeful sperm-ZP binding.

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Lithothamnion steneckii sp. nov. and Pneophyllum conicum: new coralline red algae (Corallinales, Rhodophyta) for coral reefs of Brazil

  • Mariath, Rodrigo;Riosmena-Rodriguez, Rafael;Figueiredo, Marcia
    • ALGAE
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    • v.27 no.4
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    • pp.249-258
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    • 2012
  • Nongeniculate coralline red algae are a common element of the Brazilian coastal zone, especially associated to coral reefs. During the course of ecological studies at Parque Municipal Marinho do Recife de Fora, two species of non-geniculate Corallinales were the major organisms covering the reef. Analyses of the vegetative and reproductive features of the species were analyzed; indicating that one new species of the genus Lithothamnion is proposed here based on the combination of several features associated with anatomy of the tetrasporangial conceptacles in relation to other species of the genus for which modern accounts are available. This new proposal along with other new species, new combinations and range extension of some species of the genus based in similar features clearly suggest that stability in species delimitation is possible. The second species found Pneophyllum conicum represents a range extension of more than 6,000 km from the Pacific in to the Atlantic Ocean suggesting that some nongeniculate species are widely distributed. The occurrence and abundance of these species supports and emphasizes the need for an extensive taxonomic reassessment of coralline red algae in the context of Brazilian coral reef biodiversity.

Current Status and Reform Tasks in Life Cycle Management of Korean Health Technology for the Fourth Industrial Revolution Era (4차 산업혁명 시대의 대한민국 의료기술 전주기 관리현황 및 단계별 개혁과제)

  • Kim, Arim;Kim, Eun-Jung;Yoon, Seok-Jun
    • Health Policy and Management
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    • v.30 no.3
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    • pp.270-276
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    • 2020
  • Entering the fourth industrial revolution era, health technology is rapidly developing and the people's needs for medical services are gradually increasing. Establishing a life cycle management of health technology has emerged as a new policy agenda to cope with these changes. However, the management of health technology have been conducted without continuity and with several problems pointed out. Therefore, we suggest the reform agendas by stages to establish system for a life cycle management of health technology in the fourth industrial revolution era as follows. In the stage of development, it is important not only to provide research funding, but also consulting by professional about whole cycle of health technologies. In the phase of market entry, there are needs for enhance the system that would expand the early adoption for innovative technology and increase its effectiveness. After the spread of health technology to clinical settings, a reassessment and post management system should be established that have an institutional framework with strong price adjustment and exit mechanism. Furthermore, we hope that discussions will be brisk in macro perspective on the balancing of development in healthcare industry, health of people and national health insurance finance.

Two adolescent cases of Fitz-Hugh-Curtis syndrome (청소년에서의 Fitz-Hugh-Curtis Syndrome 2례)

  • Kim, Ji Hye;Oh, Sung Hee
    • Clinical and Experimental Pediatrics
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    • v.52 no.9
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    • pp.1038-1043
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    • 2009
  • Two adolescent cases of Fitz-Hugh-Curtis syndrome, which has not been previously reported in Korean girls, presenting with right upper-quadrant abdominal pain, nausea, vomiting, and fever are reported here. A careful and thorough inquiry into the sexual history of the first patient, which was not done upon admission, led to a careful reassessment of the dynamic abdominal computed tomography scan revealing hepatic capsular enhancement without evidence of gallbladder or liver disease. Both cases were diagnosed noninvasively and were treated successfully by medical intervention. A high index of suspicion of Fitz-Hugh-Curtis syndrome should be implemented in the differential diagnosis of right upper quadrant pain, particularly in sexually active girls, for a prompt diagnosis and rapid cure.

Development of a Simulation Scenario on Emergency Nursing Care of Dyspnea Patients (간호사를 위한 호흡곤란 응급관리 시뮬레이션 시나리오 개발)

  • Kang, Hye-Won;Hur, Hea-Kung
    • Journal of Korean Critical Care Nursing
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    • v.3 no.2
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    • pp.61-76
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    • 2010
  • Purpose: This study was aimed to construct an algorithm of dyspnea emergency care and develop a simulation scenario for emergency care of dyspnea based on the algorithm. Methods: The first stage of this methodological study was to construct a preliminary algorithm based on a literature review, and content and clinical validity were established. Reflecting the result of content and clinical validity for this preliminary algorithm, simulation scenario was developed based on the modified Bay Area Simulation Collaborative scenario template. The content validity of this scenario was established, and clinical applicability was tested by applying this scenario to nurses. Results: The final simulation scenario of emergency care of dyspnea consisted of scenario overview, curricular integrity, and scenario script. The scenario was proceeded on 7 phases of the algorithm as follows; initial assessment, immediate emergency care, reassessment of dyspnea, monitoring respiratory failure, checking pulse if respiratory failure occurs, decision making on cardiopulmonary resuscitation or intubation, determining a differential diagnosis according to origin of dyspnea. Conclusion: The simulation scenario of emergency care of dyspnea developed in this study may provide a strategy of simulation education for emergency care of dyspnea for nurses.

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Optimization of Air Quality Monitoring Networks in Busan Using a GIS-based Decision Support System (GIS기반 의사결정지원시스템을 이용한 부산 대기질 측정망의 최적화)

  • Yoo, Eun-Chul;Park, Ok-Hyun
    • Journal of Korean Society for Atmospheric Environment
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    • v.23 no.5
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    • pp.526-538
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    • 2007
  • Since air quality monitoring data sets are important base for developing of air quality management strategies including policy making and policy performance assessment, the environmental protection authorities need to organize and operate monitoring network properly. Air quality monitoring network of Busan, consisting of 18 stations, was allocated under unscientific and irrational principles. Thus the current state of air quality monitoring networks was reassessed the effect and appropriateness of monitoring objectives such as population protection and sources surveillance. In the process of the reassessment, a GIS-based decision support system was constructed and used to simulate air quality over complex terrain and to conduct optimization analysis for air quality monitoring network with multi-objective. The maximization of protection capability for population appears to be the most effective and principal objective among various objectives. The relocation of current monitoring stations through optimization analysis of multi-objective appears to be better than the network building for maximization of population protection capability. The decision support system developed in this study on the basis of GIS-based database appear to be useful for the environmental protection authorities to plan and manage air quality monitoring network over complex terrain.

Ubiquinone compounds of the strains in Leucosporidium scottii and its related taxa (담자균 효모(酵母) Leucosporidium scottii와 관련 분류군균주(分類群菌株)의 ubiquinone 물질)

  • Joo, Woo-Hong
    • The Korean Journal of Mycology
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    • v.19 no.4
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    • pp.258-265
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    • 1991
  • Ubiquinone compounds of strains in Leucosporidium scottii, Leucosporidium fellii, Leucosporidium lari-marini, and Rhodosporidium fluviale were analyzed by the high performance liquid chromatography. The Q-9 or Q-l0 compounds, independent on mating or self-sporulating type, were determined in the analyses of Leucosporidium scottii strains. Particularly, there is heterogenous in the quinone compounds in the same strain of L. scottii. These results showed reassessment of the quinone compounds as a taxonomic criterion; L. fellii had the Q-9 compound, L. lari-marini the Q-8 compound, and R. fluviale the Q-10 compound, Taxonomic position of L. lari-marini should be elucidated on the basis of analysis of Q-compound with other aspects.

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The effect of Functional Electrical Stimulation on the Ankle Plantar Flexor Spasticity in Cerebral Palsy. (기능적 전기자극이 뇌성마비 환자의 족저굴곡근 경직에 미치는 영향)

  • Kim Young-Ji;Kim Tae-Sook;Kim Jae Yoon;Oh Jung Lim;Park Rae Joon
    • The Journal of Korean Physical Therapy
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    • v.14 no.3
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    • pp.60-73
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    • 2002
  • Spasticity is the most troublesome problems in the management in cerebral palsy. The purpose of this study was to observe the effect of FES to spasticity. 8 cerebral palsy children were selected for this study. Assessment was carried out before treatment for obtain baseline measurement of spasticity and reassessment were carried out at after 10th., 20th. treatment sessions and 24hours after treatment. The results of this study were as following that MAS scores were significantly reduced after 10th and 20th after treatment compared with pre-treatment. MAS scores were significantly reduced after 20th compared with pre-treatment. These results indicated that FES appears to reduce significantly MAS scores and maintained 24hours after treatment compared with pre-treatment.

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Integration of the Feasibility Assessment Procedure and EIA of the Big Public Investment Project : In the Case of the Saemangeum Reclamation Project (대규모 공공투자사업의 경제적 타당성 평가와 환경영향평가 통압 방안 - 새만금 간척사업을 사례로 -)

  • Choi, Mi-Hee
    • Journal of Environmental Impact Assessment
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    • v.11 no.2
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    • pp.93-107
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    • 2002
  • The choice of big public investment project needs an appropriate feasibility analysis before it is implemented, bemuse a rot wisely chosen one would bring about big and longrun societal costs. But the feasibility analysis for the big public investment project in Korea has been done without linking the economic benefits and environmental damages. Consequently social conflicts arose frequently during and after project implementation, owing to such concerns asincreasing costs and serious ecological damages. The recent social conflict over the Saemangeum Project is a typical case. This reclamation project began in 1991 and finished 60% of the whole process in 1999, when its feasibility was again assessed under the public pressure by the joint assessment team consisting of both citizen's and government's professionals. Even the assessment report by this joint team could not show the convincing results owing to the improper assessment procedure and failure to set proper feasibility criteria. This paper pointed out the limitations of our current procedure of feasibility assessment and identified the concrete problems that atosee during the recent reassessment process of the Saemangeum reclamation project by the joint team. In order to improve the current problem-ridden practices, it is concluded by the policy recommendation for establishing a right feasibility assessment procedure for the public investment projects.