• Title/Summary/Keyword: state

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Study on the neutron imaging detector with high spatial resolution at China spallation neutron source

  • Jiang, Xingfen;Xiu, Qinglei;Zhou, Jianrong;Yang, Jianqing;Tan, Jinhao;Yang, Wenqin;Zhang, Lianjun;Xia, Yuanguang;Zhou, Xiaojuan;Zhou, Jianjin;Zhu, Lin;Teng, Haiyun;Yang, Gui-an;Song, Yushou;Sun, Zhijia;Chen, Yuanbo
    • Nuclear Engineering and Technology
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    • v.53 no.6
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    • pp.1942-1946
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    • 2021
  • Gadolinium oxysulfide (GOS) is regarded as a novel scintillator for the realization of ultra-high spatial resolution in neutron imaging. Monte Carlo simulations of GOS scintillator show that the capability of its spatial resolution is towards the micron level. Through the time-of-flight method, the light output of a GOS scintillator was measured to be 217 photons per captured neutron, ~100 times lower than that of a ZnS/LiF:Ag scintillator. A detector prototype has been developed to evaluate the imaging solution with the GOS scintillator by neutron beam tests. The measured spatial resolution is ~36 ㎛ (28 line pairs/mm) at the modulation transfer function (MTF) of 10%, mainly limited by the low experimental collimation ratio of the beamline. The weak light output of the GOS scintillator requires an enormous increase in the neutron flux to reduce the exposure time for practical applications.

Assessing Misdiagnosis of Relapse in Patients with Gastric Cancer in Iran Cancer Institute Based on a Hidden Markov Multi-state Model

  • Zare, Ali;Mahmoodi, Mahmood;Mohammad, Kazem;Zeraati, Hojjat;Hosseini, Mostafa;Naieni, Kourosh Holakouie
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.9
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    • pp.4109-4115
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    • 2014
  • Background: Accurate assessment of disease progression requires proper understanding of natural disease process which is often hidden and unobservable. For this purpose, disease status should be clearly detected. But in most diseases it is not possible to detect such status. This study, therefore, aims to present a model which both investigates the unobservable disease process and considers the error probability in diagnosis of disease states. Materials and Methods: Data from 330 patients with gastric cancer undergoing surgery at the Iran Cancer Institute from 1995 to 1999 were analyzed. Moreover, to estimate and assess the effect of demographic, diagnostic and clinical factors as well as medical and post-surgical variables on transition rates and the probability of misdiagnosis of relapse, a hidden Markov multi-state model was employed. Results: Classification errors of patients in alive state without a relapse ($e_{21}$) and with a relapse ($e_{12}$) were 0.22 (95% CI: 0.04-0.63) and 0.02 (95% CI: 0.00-0.09), respectively. Only variables of age and number of renewed treatments affected misdiagnosis of relapse. In addition, patient age and distant metastasis were among factors affecting the occurrence of relapse (state1${\rightarrow}$state2) while the number of renewed treatments and the type and extent of surgery had a significant effect on death hazard without relapse (state2${\rightarrow}$state3)and death hazard with relapse (state2${\rightarrow}$state3). Conclusions: A hidden Markov multi-state model provides the possibility of estimating classification error between different states of disease. Moreover, based on this model, factors affecting the probability of this error can be identified and researchers can be helped with understanding the mechanisms of classification error.

Disorder of Endothelia Vessels' Functional State with Malignant Tumors in Patients Exposed Anthropogenic Radiation

  • Pak, Laura;Noso, Yoshihiro;Chaizhunusova, Nailya;Manambaeva, Zukhra;Adylkhanov, Tasbolat;Takeichi, Nobuo;Olzhaev, Sayakhat;Aldyngurov, Daniyar;Tuleutayeva, Raikhan;Argynbekova, Ainur;Tanysheva, Gulyash;Zhazykbayeva, Lashyn;Baissalbayeva, Ainur;Rakhypbekov, Tolebay
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.2
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    • pp.575-579
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    • 2016
  • The aim of this research is to determine the characteristics of endothelial factors and the hemostatic system conditions with malignant neoplasms patients, which were exposed to ionizing radiation. Total number of examined people is 223, 153 of them are patients with gastrointestinal tract oncopathology. The article presents the results of the analysis of numerical indicators of endothelial condition and platelet hemostasis of patients, who had cancer. They lived in the regions of Kazakhstan, subjected to contamination of radionuclides as a result of nuclear weapons tests, which took place in this region from 1949 to 1989. These results then were compared to cancer patients and healthy individuals with no radiation risk. The study revealed the presence of higher levels of endothelial dysfunction and following trigger of the hemostatic system in patients with malignant tumors of the gastrointestinal tract. In particular, the defined high degree of endothelial dysfunction include endothelium-dependent vasodilation, content desquamated endothelial cells in peripheral blood and von Willebrand factor. These indicators have a clear correlation with the degree of disorder of studied parameters of the hemostasis, which can cause the development of thrombotic complications.

Effect of Informativeness on the State-Anxiety of Hysterectomy Patient (정보제공이 자궁적출술환자의 상태-불안에 미치는 영향)

  • 이미경
    • Journal of Korean Academy of Nursing
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    • v.13 no.2
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    • pp.70-86
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    • 1983
  • The purpose of study carried out to determine the effect of informativeness influeucing the state-Anxiety of Hysterectomy patient, the relationship between Hysterectomy patient's general characteristics on State-Anxiety. and to investigation the cause of hysterectomy patient's Anxiety, the relationship between the cause of Anxiety and State-Anxiety. This stuad carried out between April 14. to May 24. 1983. This study sample consisted of 104 Hysterectomy patient who admitted to department of obstetrics of Seoul National University Hospital, Korea University Hospital, Han Yang University Hospital and Seung Nam Hospital. The Sample were divided into two groups; fifty two of experimental and fifty two of control group. The method used for the collection of data were set of information prepared by reseacher and state-Anxiety Inventory, The Questionnaire of state-Anxiety Inventory was made up 20 items. The data was analyzed by computer program. The results of the study were as follows. 1. There was shown state Anxiety to be alleviated by experimental group and control group. 2. There was significant relation between experimental group and control group. (p<0.01) 3. There was relation of state-Anxiety by education Level: Experimental group (p<0.05) control group (p<0.05) religion : only control group (p<0.05)economic state : only control group (p<0.05) The people who encouraged hysterectomy: Experimental group (p<0.05) control group (p<0.0001) 4. The cause of preoperative anxiety about hysterectomy were as follows: 1) destruction of body image(=loss of uterus) 2) husband's attitude 3) Expactation that hysterectomy will adversely affect sexual relation 5. Among the cause of Anxiety, R²for state-Anxiety were as follows: 1) economic state 17.3% 2) deatch 21.6% 3) Expactation that hysterectomy will adversely affect sexual relation 24.5%.

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Temporal Epidemiological Assessment of Colorectal Cancer Incidence and Mortality in East Kazakhstan, 2004-2013

  • Zhabagin, Kuantkan;Igissinov, Nurbek;Manambayeva, Zukhra;Adylkhanov, Tasbolat;Sandybayev, Marat;Nurgazin, Murat;Massadykov, Adilzhan;Tanatarov, Sayat;Aldyngurov, Daniyar;Urazalina, Nailya;Abiltayeva, Aizhan;Baissalbayeva, Ainoor;Zhabagina, Almagul;Sabitova, Dinara;Zhumykbayeva, Nurgul;Kenbayeva, Dinara;Rakhimbekov, Alexander
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.15
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    • pp.6413-6416
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    • 2015
  • Colorectal cancer incidence and mortality in Kazakhstan are relatively high but exact statistics have hitherto been lacking and trends over time are unclear. The present study was therefore undertaken to retrospectively assess data for East Kazakhstan, accessed from the central registration office, for the period 2004-2013. Approximate age standardized data for incidence and mortality were generated and compared across age groups, gender and year. It was determined that during the studied period 3,417 new cases of colorectal cancer were registered and 2,259 died of this pathology. Average cancer cancer incidence and mortality over the ten years were $24.1/10^5$ and $15.9/10^5$ respectively, and the overall ratio of mortality/incidence (M/I) was 0.69:1 (range 0.58-0.73). Both incidence and mortality tended to remain constant in both males and females. The male to female ratios also did not significantly vary over time but a trend for improvement of the mortality to incidence ratio was observed, especially for rectum. Whether this might be related to screening remains unclear. These preliminary data indicate that whereas colorectal cancer continues to be important, change in environmental factors are not having a great impact on incidence in East Kazakhstan.

Effects of Progressive Muscle Relaxation on Behavioral States and Emotional Reactions of Adolescent Athletes (점진적 근육이완요법이 청소년 운동선수의 행동상태와 정서반응에 미치는 효과*)

  • Park Sun-Nam
    • Child Health Nursing Research
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    • v.7 no.3
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    • pp.383-396
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    • 2001
  • This study was designed to investigate the effects of the progressive muscle relaxation on behavioral states and emotional reactions of adolescent athletes. The participants were 167 adolescent male soccer players aged between 12 and 18 who were junior or high school students in Seoul. Ninety-three of them were assigned to the experimental group, while seventy-four to the control group. The experimental group was treated by 10 sessions (20 min./session) of Jacobson's progressive muscle relaxation for two weeks, while the control group was not treated. The self and observer reported behavioral states, general stress by visual analogue scale, physical symptoms of stress, athletic stress, state anxiety, depression, self-esteem were measured before and after two weeks of the progressive muscle relaxation. The results were as follows ; 1. The self and observer reported behavioral states were significantly decreased in the experimental group compared with the control group. 2. The general stress and the gastrointestinal symptoms of stress were significantly decreased in the experimental group compared with the control group. No significant difference on athletic stress was found between the two groups. The depression and the state anxiety were significantly decreased in the experimental group compared with the control group. The self-esteem was significantly increased in the experimental group compared with the control group. 3. The influential factors on behavioral state of adolescent male athlete were depression and state anxiety. The accelerating factor on behavioral state change after the progressive muscle relaxation was state anxiety. These results are suggested that the progressive muscle relaxation could be effective in stabilizing behavioral state, decreasing general stress, gastrointestinal symptoms of stress, depression, state anxiety, in increasing self-esteem of adolescent male athletes. And the behavioral state change after the progressive muscle relaxation was influenced by state anxiety.

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Application of Single-State Parsing Automata to LR Grammars (LR 문법에 대한 단일상태파싱오토마톤의 적용)

  • Lee, Gyung-Ok
    • Journal of KIISE
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    • v.43 no.10
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    • pp.1079-1084
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    • 2016
  • Single-state parsing automata have a characteristic such that the decision of an action depends only on the current state but not on the parsing history. The memory space and the parsing time of single-state parsing automata are less than the memory space and the parsing time of LR automata. However, the applicable grammar class of single-state parsing automata is less than that of LR automata. This paper provides extended single-state parsing automata, which are applicable to LR grammars. In the prior work, the special state, referred to as the cyclic state was not treated in the construction of single-state parsing automata, and hence, the applicable grammar class was less than LR grammars. The paper solves the problem of cyclic states by processing dynamic information depending on an input string. The proposed method expands the application of grammar class of single-state parsing automata to LR grammars.

A study on performance analysis of synchronization clock with various clock states in NG-SDH networks (NG-SDH 망에서 다양한 클럭상태 하에서의 동기클럭 성능분석에 관한 연구)

  • Lee Chang-Ki
    • The KIPS Transactions:PartC
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    • v.13C no.3 s.106
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    • pp.303-310
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    • 2006
  • This paper is to execute a study for characteristic analysis of synchronization clock and maximum network node number with various clock states, normal, SPT, LPT, in NG-SDH networks. Through the simulations, maximum network node numbers showed from 42 to 38 nodes in normal state. In SPT state, maximum network node numbers, when the last NE network applied to only SPT state, presented from 19 to 4 nodes, much less than normal state. Node numbers to meet specification in case of occurrence of SPT state in all NE networks decreased greatly. In LPT state, all maximum node numbers, when the last NE network applied to only LPT state, presented more than 50 nodes, and the results in case of occurrence of LPT state in all NE networks were also identified. However, node numbers to meet specification in case of LPT state in all DOTS networks were few large with difference between LPT and normal or SPT state.

A Study about the Improvement of State-Owned Properties Management - With a Focus on State-Owned Land - (국유재산관리제도의 개선방안에 관한 연구(국유지를 중심으로))

  • Lee, Kwi-Taek;Min, Guy-Sik
    • The Journal of the Korea institute of electronic communication sciences
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    • v.6 no.5
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    • pp.739-748
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    • 2011
  • As of 2010, the state owns $24,086km^2$ of land, which accounts for 24% of the nations total land area of $24,086km^2$. In the meantime, the state-owned national property management policies enacted laws changed since the variety has been showing up but still a problem. Also recently, on April 1, 2011 amendment, the state-owned property law enforcement in the front and relieve the problem somewhat, but still state-owned estates efficiently and economically as well as management and operation of the state not be public purpose and welfare of the people in order for there not being used as a reasonable choice still remains to be improved is Free.

From a Developmentalist Welfare State to a Social Investment State: A Case Study of Japan (발전주의 복지국가에서 사회투자국가로: 일본 사례를 중심으로)

  • Kwon, Soon-mee
    • 한국사회정책
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    • v.25 no.1
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    • pp.231-257
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    • 2018
  • Japan has generally been considered as the developmentalist welfare state. However, Japan has recently been transformed into a social investment state. Although it still has a developmentalist characteristics with its institutional path dependence, the new social and economic challenges derived from the new social risks such as low birth rates and aging population forced Japan to adopt a new welfare state strategy. The paradigm shift in terms of welfare state strategy was launched by the Third Way positioning of the Democratic party government and succeed to the Second Stage of Abenomics under the Third Abe Cabinet. This paper argues that the welfare state paradigm shift towards a social investment state in Japan is not limited to the Japan's Plan for Dynamic Engagement of All Citizens for a virtuous cycle of growth and distribution, but expands its scope to include the work-family balance policies such as labor market activation for women and public caring for children.