• 제목/요약/키워드: Overall R-Square

검색결과 67건 처리시간 0.023초

Sleep Quality and Associated Risk Factors in Leukemia Patients Undergoing Chemotherapy in Iran

  • Bagheri-Nesami, Masoumeh;Goudarzian, Amir Hossein;Babaei, Ghasem Jan;Badiee, Milad;Mousavi, Mostafa;Sharifi, Mohammad Sadegh
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권sup3호
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    • pp.107-111
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    • 2016
  • This study aimed to determine sleep disorders and associated risk factors in leukemia patients undergoing chemotherapy in Imam Khomeini Hospital of Sari, Iran. This cross-sectional study was conducted in 2015 with 100 patients selected. Inclusion criteria included complete mental and psychological health and being over 18 years old, and exclusion criteria included suffering other cancers, other chronic diseases, concurrent radiotherapy, and chemotherapy. The Pittsburgh Sleep Quality standard questionnaire was used to collect data. The questionnaire consisted of mental sleep quality, sleep latency, sleep duration, sleep quality, sleep disturbances, use of sleeping drugs, and impaired daily functioning. Data were analyzed by software SPSS 18 and by using descriptive and inferential tests (Pearson, Spearman, T-test and chi-square). Totals of 47 men (47%) and 53 women (53%) with a mean age of $44.1{\pm}1.7$, participated in the study. The mean overall score of sleep quality was $9.3{\pm}3.9$, which represents the average sleep quality in most participants. T-test shows that males have better sleep quality than females (t=2.1; 95%CI:0.004-0.25; P<0.01). Also the sleep quality increased with age (r=0.22, P=0.03). Results show that the amount of sleep quality was only moderate in most patients, so it is necessary to take coping strategies to improve their quality of sleep.

The Effect of Calcium Level on Microbial Phytase Activity and Nutrient Balance in Swine

  • Li, Defa;Che, X.R.;Wang, Y.Q.;Qiao, S.Y.;Cao, H.;Johnson, W.;Thacker, P.
    • Asian-Australasian Journal of Animal Sciences
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    • 제12권2호
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    • pp.197-202
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    • 1999
  • Three barrows weighing 45.0 kg, fitted with simple T-cannulas in both the duodenum and terminal ileum, were assigned to diets in a $3{\times}3$ Latin Square design experiment to determine the effect of two calcium levels (0.8% vs 0.4%) on phytase activity and nutrient balance in growing pigs. The control diet contained 0.8% calcium, with no added inorganic phosphorus (0.45% total phosphorus) and no added phytase. The two additional experimental diets contained microbial phytase (750 phytase units/kg) and supplied either 0.8% or 0.4% calcium. With added microbial phytase, ileal and total tract digestibility of rotal phosphorus were improved by 20.9 and 13.8 percentage units, respectively (p=0.01). The apparent duodenal and ileal digestibility of phytate phosphorus were increased by 51.8 and 49.7 percentage units (p=0.01). Lowering dietary calcium in the presence of microbial phytase increased the digestibility of phytate phosphorus by an additional 10.9 (p=0.001) and 5.7 percentage units for duodenal and ileal digestibility, respectively. Supplementation with microbial phytase significantly reduced fecal excretion of nitrogen and phosphorus and increased the percentage of these nutrients retained by the pig. Lowering dietary calcium further increased the percentage of dietary phosphorus retained. Overall, reducing dietary calcium appeared to increase the effectiveness of added microbial phytase in degrading phytate phosphorus. As a result, care should be taken to avoid high levels of dietary calcium when supplementing swine diets with microbial phytase.

자동차 제조사 A 기업의 자동차 품질역량과 인지된 위험이 고객가치 및 고객충성도에 미치는 영향 (The Effect of Motor Manufacturer A's Vehicle Quality Capability and Perceived Risk on the Customer Value and Loyalty)

  • 김태영;유한주;송광석
    • 품질경영학회지
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    • 제48권1호
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    • pp.125-147
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    • 2020
  • Purpose: This study would measure the users'perceived overall quality level of A automobile Company, which has leading market power in the domestic automobile market and analyze the causal relationships in the quality value process Model to quality capability, customer value and loyalty based on that. Especially, this study would analyze the relative impacts of the users'perceived risks appearing in the quality value process model of the formation of Quality Factors(QF), Customer Value(CV), and Customer Loyalty(CL) and analyze the moderating effect of the causal relationships among the components. Methods: For an analysis of causal relationships connected to QF, CV, and CL of the customers who purchased Auto manufacturer A's automobile users, 179 users who used within 3 years were utilized as samples for the analysis. As for QF, based on the Garvin(1988), the QF of automobiles were redesigned. For a structural equation analysis of the entire research model, the PLS(S(Partial Least Square) model was utilized. Results: As a result of an analysis, R2 of CV and CL was 0.652 for CV and 0.664 for CL, which was a very stable Goodness of fit. As a result of an analysis of the hypotheses of QF and CV, automobile performance, conformance, aesthetics, serviceability, and durability. In addition, it turned out that the perceived risk had a moderating effect on convenience, service availability, and perceived quality. Conclusion: This study found that the perceived quality risk appearing among automobile users had negative effects on the quality value process model to QF, CV and CL. In contrast, there were factors not affecting the users'quality value process in spite of the perceived risk. These factors can suggest important managerial implications in that they can be utilized as Auto manufacturer A's market-dominant strengths.

Work-related Musculoskeletal Pain and Health-related Quality of Life among Physical Therapists in Korea

  • Kim, Giwon;Lee, Kyunghee
    • The Journal of Korean Physical Therapy
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    • 제28권1호
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    • pp.39-45
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    • 2016
  • Purpose: Physical therapists are likely to be exposed to work-related musculoskeletal pain due to excessive repetitive tasks. This study was conducted to identify the relationship between work-related musculoskeletal pain and quality of life of physical therapists. Methods: A self-reported questionnaires was sent to 200 physical therapists at in Seoul and Kyoungido. The questionnaires was returned by 170 physical therapists. The questionnaire had included 4 items that coveringed demographic information, areas of musculoskeletal problems, pain rating scale, and WHOQOL-BREF. The analysis was completed using descriptive statistics, and differences between pain and demographic variables were identified using the chi-square test. The relationship between work-related musculoskeletal pain and quality of life was analyzed by t-test and Pearson's correlation. Results: The overall prevalence of work-related musculoskeletal pain was 76.8%. The most affected pain sites included the low back (48.8%), shoulder (45.,2%), hand and wrist (43.5%), and neck (33.3%). Pain ratings of subjects with pain was were moderate. There was a A significant difference for the subdomains of quality of life was observed between the subjects with musculoskeletal pain and those without pain. Weak negative correlations (r=-0.28) were observed between pain rating scale and QOL. Conclusion: These findings show that physical therapists appear to be at a higher risk for work-related musculoskeletal pain and physical domain of QOL. Therefore, Ffurther research is needed to investigate examine the effect of risk factors and ergonomics as physical load, general health status on prevalence of musculoskeletal pain.

폐절제술을 받은 폐암환자의 영양섭취 상태와 수술 후 폐합병증 (Nutritional Intake and Postoperative Pulmonary Complications among Lung Cancer Patients who Underwent Pulmonary Resection)

  • 이선혜;이해정;현수경;이미순;김도형;김영대
    • Journal of Korean Biological Nursing Science
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    • 제23권1호
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    • pp.11-21
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    • 2021
  • Purpose: The aim of this study was to examine the nutritional intake status of the lung cancer patients who underwent pulmonary resection and to analyze the relationship between the status of the nutritional intake and the occurrence of postoperative pulmonary complications. Methods: This study was a secondary analysis to determine whether the changes in the nutritional intake after surgery were related to pulmonary complications. Data of a total of 89 patients were included in the analysis and the nutritional intake status was confirmed using a 24-hour dietary recall method. The data were analyzed by descriptive statistics, chi-square or Fisher's exact test, and ANOVA using the SPSS WIN 26.0 program and word clouds were generated using the R software program. Results: Overall, a decrease in the postoperative nutritional intake was observed in the patients who underwent pulmonary resection, except for the intake of fat. The pulmonary complications were identified to be associated with BMI and the presence of comorbidity. Twenty-three out of 74 patients with vitamin E levels below the Estimated Average Requirements developed pulmonary complications after surgery. Conclusion: Lung cancer patients who underwent pulmonary resection generally have difficulty in acquiring appropriate nutritional intake and need balanced nutritional management. Future investigations on the impact of increased vitamin E intake on postoperative pulmonary complications may provide better insight into the relationship between vitamin E intake and pulmonary complication among patients who underwent pulmonary resection.

한국 산모의 산후 우울과 산후 외상 후 스트레스장애 관련성: 종단적 연구 (Association of postpartum depression with postpartum posttraumatic stress disorder in Korean mothers: a longitudinal survey)

  • 조현진;고민선;유혜지;안숙희
    • 여성건강간호학회지
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    • 제28권1호
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    • pp.46-55
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    • 2022
  • Purpose: This study aimed to determine the level of postpartum posttraumatic stress disorder (PTSD) and postpartum depression (PPD) in Korean mothers with healthy babies and to explore the factors related to postpartum PTSD. Methods: This study used a longitudinal survey design to explore the levels and association of PPD and PTSD. Two hundred women were recruited during pregnancy and the data were collected via online survey from 166 mothers (84% retained) who gave birth to healthy babies, at two postpartum periods: Fear of childbirth was assessed at the 1st week; and spousal support, PPD, and postpartum PTSD were surveyed at the 4th week postpartum. Descriptive statistics, t-test, one-way analysis of variance, Chi square test, and multiple regression were done. Results: The mean age of mothers was 33.12 (±3.97) years old. Postpartum PTSD was low (8.95±6.49) with 1.8% (n=3) at risk (≥19). PPD was also low (6.68±5.28) and 30.1% (n=50) were identified at risk (≥10). The comorbid rate of PPD with PTSD was 6%. Mothers who did not have a planned pregnancy had higher scores of PPD (t=-2.78, p=.008), whereas spousal support and PPD had negative relationship (r=-.21, p=.006). The overall explanatory power for postpartum PTSD was 55.2%, of which PPD was the only significant variable (β=. 76, t=13.76, p<.001). Conclusion: While only 1.8% was at risk of postpartum PTSD at 4 weeks postpartum, PPD prevalence was 30.1% and PPD was the only influential factor of postpartum PTSD. Assessment and counseling of PPD are required as well as screening for postpartum PTSD. More research is also needed on postpartum PTSD in Korean women.

Effects of supplemental bacteriophage on the gut microbiota and nutrient digestibility of ileal-cannulated pigs

  • Hyunwoong Jo;Geongoo Han;Eun Bae Kim;Changsu Kong;Beob Gyun Kim
    • Journal of Animal Science and Technology
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    • 제66권2호
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    • pp.340-352
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    • 2024
  • This study measured the potential changes of the microbiota in the gastrointestinal tract and energy and nutrient digestibility by supplemental bacteriophages in pigs. Twelve castrated male pigs (initial mean body weight = 29.5 ± 2.3 kg) were surgically cannulated using T-cannula. The animals were housed individually in pens equipped with a feeder and a nipple waterer. The pigs were allotted to 1 of 3 experimental diets in a quadruplicated 3 × 2 Latin square design with 3 experimental diets, 2 periods, and 12 pigs resulting in 8 replicates per diet. The 3 diets were a control mainly based on corn and soybean meal with no antibiotics or bacteriophages, a diet containing 0.1% antibiotics, and a diet containing 0.2% bacteriophages. On day 5 of the experimental period, feces were collected and on days 6 and 7, ileal digesta were collected. Genomic DNA for bacteria were extracted from the ileal digesta and feces and the V4 region of the 16S rRNA gene was amplified. The ileal and fecal digestibility of energy, dry matter, organic matter, crude protein, and fiber was unaffected by dietary antibiotics or bacteriophages. At the phylum level, the supplemental antibiotic or bacteriophage tended to result in a higher proportion of Firmicutes (p = 0.059) and a lower proportion of Bacteroidetes (p = 0.099) in the ileal digesta samples compared with the control group with no difference between the antibiotic and bacteriophage groups. At the genus level, the supplemental antibiotic or bacteriophage tended to result in a higher proportion of Lactobacillus (p = 0.062) and a lower proportion of Bacteroides (p = 0.074) and Streptococcus (p = 0.088) in the ileal digesta compared with the control group with no difference between the antibiotic and bacteriophage groups. In the feces, supplemental antibiotics or bacteriophages reduced the proportion of Bifidobacterium compared with the control group (p = 0.029) with no difference between the antibiotic and bacteriophage groups. Overall, supplemental antibiotics and bacteriophages showed positive effect on the microbiota of in the ileal digesta without largely affecting energy or nutrient digestibility, with no differences between the antibiotic and bacteriophage groups in growing pigs.

FT-IR 스펙트럼 기반 다변량통계분석기법에 의한 두과작물의 대사체 수준 식별체계 확립 (Establishment of rapid discrimination system of leguminous plants at metabolic level using FT-IR spectroscopy with multivariate analysis)

  • 송승엽;하태정;장기창;김인중;김석원
    • Journal of Plant Biotechnology
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    • 제39권3호
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    • pp.121-126
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    • 2012
  • 본 연구에서는 국내에서 재배중인 대표적인 두과작물(대두, 완두, 강낭콩, 팥, 녹두, 동부)종자로부터 전세포추출물의 FT-IR 스펙트럼 데이터로부터 다변량통계분석(PCA, PLS-DA, HCA)을 이용하여 신속하고 간편한 종 구분체계를 확립하였다. 대사체수준에서 팥, 녹두, 동부는 유연관계가 높음을 알 수 있었으며 대두, 완두, 강낭콩은 비록 두과작물이지만 차이가 매우 큼을 알 수 있었다. 아울러 본 연구에서 얻어진 대사체 정보의 다변량통계분석에 의한 유연관계분석은 흥미롭게도 두과작물의 계통분류학적 유연관계와 밀접한 상관관계를 나타내었다. 따라서 FT-IR 스펙트럼 데이터의 다변량통계분석은 방법의 간편성과 신속성을 고려할 때 두과작물의 계통이나 품종의 신속한 식별 수단으로 활용이 가능할 것으로 기대된다. 또한 두과작물의 기능성 성분 함량 정보가 성공적으로 연계된다면 본 연구에서 확립된 대사체 기반 신속식별체계는 기능성 성분의 함량이 높은 계통이나 품종의 조기 선발수단으로 활용이 가능할 것으로 기대된다.

MT-CLIM 프로그램을 이용한 일별 일사량 추정의 국내 적용성 검토 (Applicability of Daily Solar Radiation Estimated by Mountain Microclimate Simulation Model (MT-CLIM) in Korea)

  • 심교문;김용석;이덕배;강기경;소규호
    • 한국농림기상학회지
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    • 제14권4호
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    • pp.260-264
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    • 2012
  • MT-CLIM 컴퓨터 프로그램을 이용한 일사량 추정의 국내 적용성 검토를 위하여 경북 의성군 일대에 7개 관측지점을 설정하고 실측 일사량과 프로그램에 의한 추정 일사량을 비교 검증하였다. 추정 일사량을 실측 일사량과 비교한 결과, 둘 사이에 결정계수 0.52의 선형관계가 확인되었고, 전체적으로는 과대 추정되는 것으로 조사되었다. MT-CLIM 프로그램에 의한 일사추정값의 RMSE는 평균 $3.83MJ\;m^{-2}$ 이어서, 일 평균 일사량 $15.27MJ\;m^{-2}$의 25% 정도에 해당되었고, 본 연구에서 사용한 일사센서의 허용오차가 표준센서의 ${\pm}5%$인 점을 감안하면 25%의 RMSE는 실용성이 떨어진다고 판단할 수 있다. 따라서 MT-CLIM 프로그램을 국내 농업분야에 적용하기 위해서는 지형보정계수 등 신뢰도를 개선시킬 추가적인 방법들이 모색되어야 할 것으로 판단된다.

의학전문대학원 학생들의 수면과 심리적 요인 (Sleep and Psychological Problems in Medical Students)

  • 김대욱;김성곤;김지훈;양영희;정우영;이진성
    • 수면정신생리
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    • 제20권2호
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    • pp.69-74
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    • 2013
  • 목 적 : 의학전문대학원 학생들은 과도한 학업으로 인해 수면 시간이 부족하고 수면의 질이 낮다고 알려져 있다. 본 연구는 의학전문대학원 학생의 수면 양상 및 이와 연관이 있을 것으로 생각되는 심리적 문제를 조사하였다. 방 법 : 부산대학교 의학전문대학원 1~4학년 학생 352명을 대상으로 수면 양상, Pittsburgh sleep quality index(PSQI), Epworth sleepiness scale(ESS), global assessment of recent stress scale(GASS), the center for epidemiologic studies-depression scale(CES-D), and Moudsley obsessive-compulsive inventory(MOCI)를 조사하였다. 두 군간 연속변수 비교에는 독립 t-검정, 비연속비교는 ${\chi}^2$-검정, 두 변수간의 상관관계는 Pearson 상관분석, 그리고 세 군 이상 비교에는 ANOVA를 이용하였다(p<0.05, 양측검정). 결 과 : 평일 수면시간 5시간 36분, 주말 수면시간 7시간 39분으로, 주말 수면시간이 더 길었다(t=15.94, p<0.001). 취침 시각은 평일 0 : 49, 주말 1 : 34으로 주말에 더 늦게 취침하였고(t=-5.23, p<0.001), 기상 시각은 평일 6 : 58,. 주말 9 : 30으로 주말에 더 늦게 기상하였다(t=-24.48, p<0.001). PSQI는 ESS(r=0.383, p<0.001), GASS(r=0.326, p<0.001), CES-D(r=0.393, p<0.001), 그리고 MOCI 점수(r=0.247, p< 0.001)와 양의 상관관계를 보였지만, 성적과는 상관관계를 보이지 않았다(r=0.072, p=0.228). 학년이 높을수록 PSQI, GASS, CES-D, MOCI 점수가 낮았다(p<0.05). 결 론 : 의학전문대학원생들의 수면의 질은 낮았고 수면 시간은 부족하였다. 수면의 질은 주간졸림, 우울감, 스트레스, 강박 성향과 연관성이 있었다.