• 제목/요약/키워드: Depletion

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직장 내 괴롭힘이 정서적 고갈 및 조직몰입에 미치는 영향에 관한 연구 - 사회적 지원의 역할 (A Study on the Effects of Workplace Bullying on Emotional Depletion and Organizational Commitment-The Role of Social Support)

  • 정해숙;김현;현병환
    • 한국콘텐츠학회논문지
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    • 제21권12호
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    • pp.463-476
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    • 2021
  • 본 연구는 직장 내 괴롭힘이 정서적 고갈 및 조직몰입에 미치는 영향에 유의한 차이를 살펴보고, 사회적 지원에 따른 유의한 차이가 있을 것인가를 고찰해 보고자 400부의 설문지를 활용하였다. 분석 방법으로 표본 특성에는 SPSS 24를 사용, 확인적 요인 분석, 신뢰도 및 타당도, 경로 분석, 구조방정식 모형에는 SmartPLS 3 통계 프로그램을 사용하였다. 연구 결과로는, 직장 내 괴롭힘은 정서적 고갈에 유의한 정(+)에 영향을 미치며, 정서적 고갈은 조직몰입에 유의한 부(-)의 영향을 미치는 것으로 나타났다. 직장 내 괴롭힘과 조직몰입 사이의 영향 관계에서 정서적 몰입은 부(-)의 방향으로 부분 매개하였고, 정서적 고갈이 조직몰입에 미치는 영향은 사회적 지원의 조절에 유의한 차이가 있는 것으로 나타났다. 시사점으로는 직장 내 괴롭힘은 정서적 고갈에 영향을 미치므로 괴롭힘을 예방하는 기업의 노력이 절실히 요구되며, 조직 내 상사와의 의사소통을 증진할 수 있는 제도나 커뮤니티를 활용하여 종사자들의 조직몰입을 향상할 수 있음을 시사해 주고 있다.

동자침(洞刺鍼)과 풍지혈(風池穴) 자락(刺絡)의 혈압강하(血壓降下) 효과(效果) (The Depressive Effect of Acupuncture on Dong and Depletion on Fungchi-point (G20))

  • 박인범;김상우;김철홍;서정철;윤현민;장경전;송춘호;안창범
    • Journal of Acupuncture Research
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    • 제20권1호
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    • pp.13-21
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    • 2003
  • Objective : The aim of this research was to investigate the depressive effect of acupuncture on Dong and depletion on Fungchi-point(G20) in stroke patients. Methods : We measured the blood pressure of the patients who were admitted in the Oriental Medical hospital of Dongeui medical center from 21. Dec. 2001. to 2. Oct. 2002. 41 stroke patients were devided into two groups. 15 patients were treated by acupuncture on Dong. The other 26 patients were treated by depletion on Fungchi-point(G20). The activity of daily living was measured. If systolic blood pressure was over 160 mmHg or diastolic blood pressure was over 90mmHg, acupuncture on Dong and depletion on Fungchi-point(G20) were performed. Then 30 minutes and 60 minutes later, systolic. diastolic blood pressure and pulse rates were measured. Results : After 30 minute of treatment, both acupuncture on Dong and depletion on Fungchi-point(G20) significantly depressed systolic blood pressure and diastolic blood pressure. After 60 minute of treatment, both acupuncture on Dong and depletion on Fungchi-point(G20) were significant in depressing systolic blood pressure and diastolic blood pressure. Pulse rates significantly changed in depletion on Fungchi-point(G20) but did not significantly change in acupuncture on Dong. Conclusions: These results suggest that both acupuncture on Dong and depletion on Fungchi-point(G20) are effective in depressing systolic blood pressure and diastolic blood pressure.

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식이 내의 타우린 함량이 고양이의 혈액 및 주유조직의 유리 아미노산 농도에 미치는 영향 (Effect of Dietary Taurine on Free Amino Acid Concentrations in Blood and Various Tissues of Cats)

  • 박태선
    • Journal of Nutrition and Health
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    • 제28권9호
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    • pp.846-854
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    • 1995
  • Taurine concentrations in blood and various tissues were measured in cats fed normal trurine diet(0.15% taurine) and trurine-free diet(0% taurine) for 5 weeks and 12 weeks, respectively. Cumulative body weight gain in young cats fed normal taurine diet and taurine-free diet for the initial 5 weeks were 463$\pm$43g and 383$\pm$53g respectively. Taurine concentration was one to two orders magnitude higher in most tissues than in plasma, among which the liver taurine-free diet for 12 weeks resulted in 98% reduction in plasma taurine concentration, 93% reduction in whole blood tarurine concentration, and 40~90% reduction in tissue taurine concentrations compared to the values for normal taurine diet group. Among the tissues tested, taurine depletion was most profound in heart and kidney, while liver and intestine were relatively resistant to taurine depletion. Whole blood taruined concentration appeared to be a better index for the body taurine status of cats as in more closely reflects the rate of taurine depletion in tissues. Taurine depletion in cats significantly increased the concentrations of essential and non-essential free amino acids in liver, while free amino acid concentrations in other tissues were not affected by taurine depletion.

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Effect of Depletion and Oxidation of Cellular GSH on Cytotoxicity of Mitomycin Small Cell Lung Cancer Cells

  • Lee, Chung-Soo
    • Biomolecules & Therapeutics
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    • 제12권2호
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    • pp.92-100
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    • 2004
  • Effect of the depletion or oxidation of GSH on mitomycin c (MMC)-induced mitochondrial damage and cell death was assessed in small cell lung cancer (SCLC) cells. MMC induced cell death and the decrease in the GSH contents in SCLC cells, which were inhibited by z-LEHD.fmk (a cell permeable inhibitor of caspase-9), z-DQMD.fmk (a cell permeable inhibitor of caspase-3) and thiol compound, N-acetylcysteine. MMC caused nuclear damage, release of cytochrome c and activation of caspase-3, which were reduced by N-acetylcysteine. The depletion of GSH due to L-butionine-sulfoximine enhanced the MMC-induced cell death and formation of reactive oxygen species in SCLC cells, whereas the oxidation of GSH due to diamide or $NH_2Cl$ did not affect cytotoxicity of MMC. The results show that MMC may cause cell death in SCLC cells by inducing mitochondrial dysfunction, leading to activation of caspase-9 and -3. The MMC-induced change in the mitochondrial membrane permeability, followed by cell death, in SCLC cells may be significantly enhanced by the depletion of GSH. In contrast, the oxidation of GSH may not affect cytotoxicity of MMC.

귀용탕(歸茸湯) 투여(投與)가 가토혈중(家兎血中) Hematocrit 및 Hemoglobin에 미치는 영향(影響) (THE EFFECT OF KWI RYONG TANG ON THE HEMATOCRIT AND HEMOGLOBIN IN THE BLOOD OF THE RABBIT)

  • 김병운
    • 대한한방내과학회지
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    • 제1권1호
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    • pp.44-49
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    • 1976
  • To investigate the effect of Kwi Ryong Tang a precious tonic of herbal drugs, the blood of rabbit was depleted from the heart for the purpose of experiment and the author administered the Kwi Ryong Tang to that rabbit. This effect of the tonic on the experimental groups was Compared with that of the control group and the author observed the following results; 1. In the experimental group treated with Kwi Ryong Tang before the depletion of the blood, the recovery of blood, the recovery of blood loss is some what accelerated that in the control group. 2. In the experimental group treated with Kwi Ryong Tang after the depletion of the blood, the recovery of blood loss is slightly accelerated that in experimental group which was treated with Kwi Ryong Tang before the depletion of the blood. 3. In the experimental group treated with Kwi Ryong Tang before and after the depletion of the blood, the recovery of the blood loss is markedly accelerated Comparing, that in the experimental group which was treated with Kwi Ryong Tang before or after the depletion of the blood loss.

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Chemical Differentiation of CS and N2H+ in Starless Dense Cores

  • Kim, Shinyoung;Lee, Chang Won;Sohn, Jungjoo;Kim, Gwanjeong;Kim, Mi-Ryang
    • 천문학회보
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    • 제43권1호
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    • pp.45.2-45.2
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    • 2018
  • CS molecule is known to be adsorbed onto dust in cold dense cores, causing its significant depletion in the center region of cores. This study is aimed to investigate the depletion of CS molecule with optically thin $C^{34}S$ molecular line observations, including significance of its differentiation depending on the evolutionary status of the dense cores. We mapped five evolved starless cores, L1544, L1552, L1689B, L694-2 and L1197 using two molecular lines, $C^{34}S$ (J=2-1) and $N_2H^+$ (J=1-0) with NRO 45 m telescope. The $H^2$ column density and temperature structures of each targets were obtained by SED fitting for Herschel continuum images and the internal number density profiles by model fitting. All of the integrated intensity maps of $C^{34}S$ show depletion holes and 'semi-ring-like' distribution, indicating that the depletion of CS is clear and general. The radial profiles of CS abundance also show significant decrease towards the core center, while $N_2H^+$ abundance is almost constant or enhanced. We find that the more evolved cores with higher $H^2$ density tend to have a stronger depletion of CS. Our data strongly support claims that CS molecule generally depletes out in the central regions of starless dense cores and such chemical differentiation is closely related to their evolution.

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건천화된 농촌소하천의 시·공간적 수문 수질 특성분석 (Temporal and Spatial Analysis of Hydrology and Water Quality in Small Rural Streams for Stream Depletion Investigation)

  • 이예은;김상민
    • 한국농공학회논문집
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    • 제55권6호
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    • pp.177-186
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    • 2013
  • The purpose of this study was to analyze the temporal and spatial characteristics of the stream flow of small rural streams for investigating the status of stream depletion located downstream of irrigation reservoir. Bonghyun and Hai reservoirs and each downstream were selected for this study. Streamflow was measured for 8 stations downstream from two reservoirs from 2010 to 2012. The water quality samples were collected monthly from the 8 stream stations and 2 reservoir stations from 2011 to 2012. The stream depletion was found in most of the downstream of reservoirs for the non-irrigation period and even in the irrigation period when there were a lot of antecedent precipitation. We found that the stream segments where there were few streamflow, vegetation covers the stream and block the streamflow which makes the stream lost its original function as a stream. Water quality monitoring results of Bonghyun stream indicated that the concentration of SS, Turbidity, TOC, COD were decreased as the stream flows from the reservoir to downstream while the TN and TP were increased. The correlation analysis for water quality data indicated that the correlation between T-N and T-P was high for Bonghyeon and Sukji streams, respectively. Continuous monitoring for rural streams located in downstream of reservoirs are required to quantify the status of stream flow depletion and determine the amount of environmental flows.

Improved nodal equivalence with leakage-corrected cross sections and discontinuity factors for PWR depletion analysis

  • Lee, Kyunghoon;Kim, Woosong;Kim, Yonghee
    • Nuclear Engineering and Technology
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    • 제51권5호
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    • pp.1195-1208
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    • 2019
  • This paper introduces a new two-step procedure for PWR depletion analyses. This procedure adopts the albedo-corrected parameterized equivalence constants (APEC) method to correct the lattice-based raw cross sections (XSs) and discontinuity factors (DFs) by accounting for neutron leakage. The intrinsic limitations of the conventional two-step methods are discussed by analyzing a 2-dimensional SMR with the commercial DeCART2D/MASTER code system. For a full-scope development of the APEC correction, the MASTER nodal code was modified so that the group constants can be corrected in the middle of a microscopic core depletion. The basic APEC methodology is described and color-set problems are defined to determine the APEC functions for burnup-dependent XS and DF corrections. Then the new two-step method was applied to depletion analyses of the SMR without thermal feedback, and its validity was evaluated in terms of being able to predict accurately the reactor eigenvalue and nodal power profile. In addition, four variants of the original SMR core were also analyzed for a further evaluation of the APEC-assisted depletion. In this work, several combinations of the burnup-dependent and -independent XS and DF corrections were also considered. The results show that the APEC method could enhance the nodal equivalence significantly with inexpensive additional costs.

Work-Family Conflict and Counterproductive Behavior of Employees in Workplaces in China: Polynomial Regression and Response Surface Analysis

  • JIANG, Daokui;CHEN, Qian;NING, Lei;LIU, Qian
    • The Journal of Asian Finance, Economics and Business
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    • 제9권6호
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    • pp.95-104
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    • 2022
  • This study investigates the complex mechanism of work-family conflict affecting counterproductive behavior of employees based on resource conservation theory and 417 valid samples by using polynomial regression and response surface analysis. Counterproductive work behavior refers to any intentional behavior of an individual that has potential harm to the legitimate interests of the organization or its stakeholders. Results show that first, work-to-family conflict (WFC) and family-to-work conflict (FWC) had four matching types. Compared with "high WFC-low FWC," "low WFC-high FWC" and "low WFC-low FWC" matching conditions, the employee self-control resource depletion and counterproductive work behavior (CWB) are at their highest under "high WFC-high FWC" congruence matching condition. Second, the joint effect of WFC and FWC has a U-shaped relationship with counterproductive behavior. Compared with the "high WFC-low FWC" match state, the level of CWB in the "low WFC-high FWC" match state is higher. Third, the depletion of self-control resources played a mediating role in the effect of WFC on counterproductive behavior. Fourth, emotional intelligence moderated the relationship between the congruence of WFC and FWC and self-control resource depletion. Emotional intelligence was higher, and the positive relationship between the congruence of WFC and FWC and self-control resource depletion was weaker.

A spent nuclear fuel source term calculation code BESNA with a new modified predictor-corrector scheme

  • Duy Long Ta ;Ser Gi Hong ;Dae Sik Yook
    • Nuclear Engineering and Technology
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    • 제54권12호
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    • pp.4722-4730
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    • 2022
  • This paper introduces a new point depletion-based source term calculation code named BESNA (Bateman Equation Solver for Nuclear Applications), which is aimed to estimate nuclide inventories and source terms from spent nuclear fuels. The BESNA code employs a new modified CE/CM (Constant Extrapolation - Constant Midpoint) predictor-corrector scheme in depletion calculations for improving computational efficiency. In this modified CE/CM scheme, the decay components leading to the large norm of the depletion matrix are excluded in the corrector, and hence the corrector calculation involves only the reaction components, which can be efficiently solved with the Talyor Expansion Method (TEM). The numerical test shows that the new scheme substantially reduces computing time without loss of accuracy in comparison with the conventional scheme using CRAM (Chebyshev Rational Approximation Method), especially when the substep calculations are applied. The depletion calculation and source term estimation capability of BESNA are verified and validated through several problems, where results from BESNA are compared with those calculated by other codes as well as measured data. The analysis results show the computational efficiency of the new modified scheme and the reliability of BESNA in both isotopic predictions and source term estimations.