PURPOSE: This study was conducted to identify the factors that influence nurses' organizational citizenship behavior. METHODS: A cross-sectional design was used, with a convenience sample of 547 nurses from four university hospitals in Seoul and Gyeonggi province. The data were collected through a questionnaire survey done from September 22 to October 10, 2008. The tools used for this study were scales on organizational citizenship behavior (14 items), self-leadership (14 items), empowerment (10 items), organizational commitment (7 items), job satisfaction (8 items) and transformational.transactional leadership (14 items). Cronbach's alpha and factor analysis were examined to test reliability and construct validity of the scale. The data collected were processed using SPSS Window 15.0 Program for actual numbers and percentages, differences in the dependent variable according to general characteristics, and means, standard deviations, correlation coefficients and multiple regression analysis. RESULTS: The factors influencing nurses' organizational citizenship behavior were identified as self-leadership (beta=.247), empowerment (beta=.233), job satisfaction (beta=.209), organizational commitment (beta=.158), and transactional leadership (beta=.142). Five factors explained 42.0% of nurses' organizational citizenship behavior. CONCLUSION: The results of this study can be used to develop further management strategies for enhancement of nurses' organizational citizenship behavior.
Adult ; *Attitude of Health Personnel ; Cross-Sectional Studies ; Female ; Humans ; Interprofessional Relations ; Job Satisfaction ; Leadership ; Nursing Staff, Hospital/organization & administration/*psychology ; Organizational Culture ; Power (Psychology) ; Questionnaires

Objectives: ：This study aimed to examine the mediating effect of sleep quality and interpretation bias for ambiguity in the relationship between hopelessness and suicidal ideation in psychiatric patients. Methods: ：A total of 231 psychiatric outpatients and inpatients completed the Beck Hopelessness Scale, Pittsburgh Sleep Quality Index, Ambiguous/Unambiguous Situations Diary-Extended Version, and Ultra-Short Suicidal Ideation Scale. Data analysis was conducted using regression analyses and bootstrap sampling. Results: ：The results of this study showed that hopelessness had a direct effect on suicidal ideation, and that sleep quality and interpretation bias for ambiguity mediated the association between hopelessness and suicidal ideation. Moreover, there was a significant double mediating effect of sleep quality and interpretation bias for am-biguity on the relationship between hopelessness and suicidal ideation. Conclusions ：These results suggest that it is important to consider both sleep quality and interpretation bias for ambiguity to prevent hopelessness from leading to suicidal idea. These results suggest that considering both sleep quality and interpretation bias for ambiguity may be important in preventing hopelessness from leading to suicidal ideation.

PURPOSE: The purpose of this study was to estimate nursing costs and to establish appropriate nursing fees for long-term care services for community elders. METHODS: Seven nurses participated in data collection related to visiting time by nurses for 1,100 elders. Data on material costs and management costs were collected from 5 visiting nursing agencies. The nursing costs were classified into 3 groups based on the nurse's visit time under the current reimbursement system of long-term care insurance. RESULTS: The average nursing cost per minute was 246 won. The material costs were 3,214 won, management costs, 10,707 won, transportation costs, 7,605 won, and capital costs, 5,635 won per visit. As a result, the average cost of nursing services per visit by classification of nursing time were 41,036 won (care time <30 min), 46,005 won (care time 30-59 min), and 57,321 won (care time over 60 min). CONCLUSION: The results of the study indicate that the fees for nurse visits currently being charged for long-term care insurance should be increased. Also these results will contribute to baseline data for establishing appropriate nursing fees for long-term care services to maintain quality nursing and management in visiting nursing agencies.
Costs and Cost Analysis ; Humans ; Insurance, Health, Reimbursement/economics ; Insurance, Long-Term Care/economics ; Long-Term Care/*economics ; Nursing Services/*economics ; Time Factors

The purpose of this study was to evaluate the quality characteristics of chicken sausage prepared with turmeric (Curcuma longa L.) powder (T) during storage at 4degrees C for 20 days. The pH and color values (a and b values) of sausage containing turmeric powder were significantly higher (P<0.05) than the control for both uncooked and cooked sausage. The hardness, chewiness, and gumminess of control sausage significantly changed after 15 days of storage, while the hardness and gumminess of turmeric-supplemented sausages (T) significantly increased after 5 days (until 15 days) for cooked sausages. The total phenolic content and DPPH radical scavenging activity of turmeric-supplemented sausages was significantly higher (P<0.01) than the control for both uncooked and cooked sausage during storage. On the other hand, the acid value of the control was higher than the turmeric-supplemented sausages and the peroxide value of the control was significantly higher (P<0.05) than the turmeric-supplemented sausages after 15 days of storage. Microorganism analysis revealed that total plate counts of uncooked and cooked control sausages were significantly higher (P<0.05) than turmeric-supplemented sausages at 20 days of storage. As a result, sausages prepared with turmeric powder demonstrate antioxidative activity and lipid oxidative stability during storage.
Chickens ; Cold Temperature ; Curcuma ; Hand ; Hardness ; Hydrogen-Ion Concentration ; Phenol

OBJECTIVES: Effects of multiple trauma are complex and extend beyond core PTSD symptoms. However, few psychological instruments for trauma assessment address this issue of symptom complexity. The Trauma Symptom Checklist-40 (TSC-40) is a self-report scale that assesses wide range of symptoms associated with childhood or adult traumatic experience. The purpose of the present study was to evaluate the validity of the Korean Version of the TSC-40 in a sample of psychiatric outpatients. METHODS: Data of 367 treatment-seeking patients with DSM-IV diagnoses were obtained from an outpatient department of psychiatric unit at a university hospital. The diagnoses were anxiety disorder, posttraumatic stress disorder, depressive disorder, adjustment disorder and others. Included in the psychometric data were the TSC-40, the Life events checklist, the Impact of Event Scale-Revised, the Zung's Self-report Depression Scale, and the Zung's Self-report Anxiety Scale. Cronbach's α for internal consistency were calculated. Convergent and concurrent validity was approached with correlation between the TSC-40 and other scales (PTSD, anxiety and depression). RESULTS: Exploratory factor analysis of the Korean Version of TSC-40 extracted seven-factor structure accounted for 59.55% of total variance that was contextually similar to a six-factor structure and five-factor structure of the original English version. The Korean Version of TSC-40 demonstrated a high level of internal consistency. (Cronbach's α=0.94) and good concurrent and convergent validity with another PTSD scale and anxiety and depression scales. CONCLUSIONS: Excellent construct validity of The Korean Version of TSC-40 was proved in this study. And subtle difference in the factor structure may reflect the cultural issues and the sample characteristics such as heterogeneous clinical population (including non-trauma related disorders) and outpatient status. Overall, this study TSCdemonstrated that the Korean version of TSC-40 is psychometrically sound and can be used for Korean clinical population.
Adjustment Disorders ; Adult ; Anxiety ; Anxiety Disorders ; Checklist ; Depression ; Depressive Disorder ; Diagnosis ; Diagnostic and Statistical Manual of Mental Disorders ; Humans ; Multiple Trauma ; Outpatients ; Psychometrics ; Stress Disorders, Post-Traumatic ; Weights and Measures

The adaptor protein, LAD/TSAd, plays essential roles in T cell activation. To further understand the functions of this protein, we performed yeast two-hybrid screening using TSAd as bait and identified 67 kDa laminin binding protein (LBP) as the interacting partner. Subsequently, TSAd-LBP interaction was confirmed in D1.1 T cell line. Upon costimulation by T cell receptor (TCR) plus laminin crosslinking or TCR plus integrin alpha6 crosslinking, LBP was coimmunoprecipitated with TSAd. Moreover, TCR plus laminin costimulation-dependent T cell migration was enhanced in D1.1 T cells overexpressing TSAd but was disrupted in D1.1 cells overexpressing dominant negative form of TSAd or TSAd shRNA. These data show that, upon TCR plus integrin costimulation, TSAd associates with LBP and mediates T lymphocyte migration.
Adaptor Proteins, Signal Transducing/genetics/*metabolism ; Amino Acids, Diamino/metabolism ; Carrier Proteins/*metabolism ; *Cell Movement ; Humans ; Integrin alpha6/metabolism ; Jurkat Cells ; Mutation ; Protein Binding ; RNA, Small Interfering/genetics ; *Receptor Cross-Talk ; Receptors, Antigen, T-Cell/metabolism ; T-Lymphocytes/*metabolism ; Transgenes ; Two-Hybrid System Techniques

OBJECTIVES: The Illness Intrusiveness Rating Scale (IIRS) is a well-validated self-report instrument for assessing negative impact of chronic illness and/or adverse effects of its treatment on everyday life domains. Although extensive literature probed its psychometric properties in medical illness, little attention was paid for its validity for psychiatric population. This study aimed to test factorial structure of the Korean Version of the IIRS (IIRS-K) in a consecutive sample of psychiatric outpatients. METHODS: Data set of 307 first-visit patients of psychiatric clinic at Guri Hanyang univ. Hospital were used. Exploratory and confirmatory factor analysis, internal consistency were tested in IIRS-K. We also checked Spearman's correlation analysis between IIRS-K, Zung's self-report anxiety scale and Zung's self-report depression scale. RESULTS: 76.9% of the patients were with anxiety disorder and depressive disorder. The principal component factor analysis of the IIRS-K extracted three-factor structure accounted for 63.2% of total variance that was contextually similar to the original English version. This three-factor solution showed the best fit when tested confirmatory factor analysis compared to the original IIRS, two-factor model of IIRS-K suggested from medical outpatients, and one-factor solution. The IIRS-K also showed good internal consistency (Cronbach's α=0.90) and good convergent validity with anxiety and depression scales. CONCLUSIONS The IIRS-K showed the three-factor structure that was similar but not identical to original version. Overall, this study proved factorial validity of the IIRS-K and it can be used for Korean clinical population.

PURPOSE: Clostridium difficile (C. difficile) is an important cause of nosocomial diarrhea. Diagnostic methods for detection of C. difficile infection (CDI) are shifting to molecular techniques, which are faster and more sensitive than conventional methods. Although recent advances in these methods have been made in terms of their cost-benefit, ease of use, and turnaround time, anaerobic culture remains an important method for detection of CDI. MATERIALS AND METHODS: In efforts to evaluate a novel chromogenic medium for the detection of C. difficile (chromID CD agar), 289 fecal specimens were analyzed using two other culture media of blood agar and cycloserine-cefoxitin-fructose-egg yolk agar while enzyme immunosorbent assay and polymerase chain reaction-based assay were used for toxin detection. RESULTS: ChromID showed the highest detection rate among the three culture media. Both positive rate and sensitivity were higher from chromID than other culture media. ChromID was better at detecting toxin producing C. difficile at 24 h and showed the highest detection rate at both 24 h and 48 h. CONCLUSION: Simultaneous use of toxin assay and anaerobic culture has been considered as the most accurate and sensitive diagnostic approach of CDI. Utilization of a more rapid and sensitive chromogenic medium will aid in the dianogsis of CDI.
Chromogenic Compounds/chemistry ; Clostridium difficile/chemistry/*isolation & purification ; Culture Media/*chemistry

BACKGROUND: The platelet ADP receptor P2Y1 plays a key role in platelet aggregation. METHODS: We tested eight sites of P2Y1 and studied the possible link between the presence of P2Y1 polymorphisms and the risk of is chemic vascular disease in a case-control study. The polymorphisms A1622G, C647G and C2259G were selected according to linkage disequilibrium. We evaluated 275 patients with is chemic cerebrovascular disease and 275 control subjects. We also evaluated 171 patients with acute myocardial infarction (AMI), 166 patients with unstable angina (UA), 173 patients with stable angina (SA) and 188 control subjects. RESULTS: For the cerebrovascular disease patients, A1622G AA, AG [odds ratio (OR), 1.170; 95% confidence interval (CI), 0.784 to 1.748] and GG (OR, 1.031; 95% CI, 0.554 to 1.918) did not show any difference between the case and control subjects. C647G CC, CG (OR, 0.995; 95% CI, 0.639 to 1.550) and GG (OR, 1.012; 95% CI, 0.450 to 2.277) did not show any difference between the case and control subjects. C2259G CC, CG (OR, 0.619; 95% CI, 0.354 to 1.082) and GG did not show any difference between the case and control subjects. For coronary artery disease patients, C2259G GG, CG (for AMI patients OR, 0.880, 95% CI, 0.384 to 2.016; for UA patients, OR, 0.885, 95% CI, 0.410 to 1.911; for SA patients, OR, 1.156, 95% CI, 0.534 to 2.501) and CC did not show any difference between AMI, UA and SA patients and each control subject. C647G GG, CG (for AMI patients OR, 1.351, 95% CI, 0.731 to 2.497; for UA patients OR, 1.292, 95% CI, 0.723 to 2.309; for SA patients OR, 0.977, 95% CI, 0.530 to 1.803) and CC (for AMI patients OR, 0.355, 95% CI, 0.093 to 1.358; for UA patients OR, 0.645, 95% CI, 0.205 to 2.028; for SA patients OR, 0.385, 95% CI, 0.113 to 1.311) did not show any difference between AMI, UA and SA patients and each control subject. A1622G AA, AG (for AMI patients OR, 1.416, 95% CI, 0.786 to 2.549; for UA patients OR, 1.079, 95% CI, 0.611 to 1.904; for SA patients OR, 0.958, 95% CI, 0.529 to 1.732) and GG (for AMI patients OR, 0.525, 95% CI, 0.195 to 1.411; for UA patients OR, 0.568, 95% CI, 0.231 to 1.401; for SA patients OR, 0.441, 95% CI, 0.169 to 1.154) did not show any difference between AMI, UA and, SA patients and the control subjects. CONCLUSION: The distribution of P2Y1 polymorphisms did not show any association with ischemic vascular disease.
Adenosine Diphosphate ; Aluminum Hydroxide ; Angina, Stable ; Angina, Unstable ; Blood Platelets ; Carbonates ; Case-Control Studies ; Coronary Artery Disease ; Humans ; Linkage Disequilibrium ; Myocardial Infarction ; Platelet Aggregation ; Receptors, Purinergic P2 ; Vascular Diseases

Objective: This study aimed to explore the myelin volume change in patients with mild traumatic brain injury (mTBI) with post-concussion syndrome (PCS) using a multidynamic multiecho (MDME) sequence and automatic whole-brain segmentation. Materials and Methods: Forty-one consecutive mTBI patients with PCS and 29 controls, who had undergone MRI including the MDME sequence between October 2016 and April 2018, were included. Myelin volume fraction (MVF) maps were derived from the MDME sequence. After three dimensional T1-based brain segmentation, the average MVF was analyzed at the bilateral cerebral white matter (WM), bilateral cerebral gray matter (GM), corpus callosum, and brainstem. The Mann–Whitney U-test was performed to compare MVF and myelin volume between patients with mTBI and controls. Myelin volume was correlated with neuropsychological test scores using the Spearman rank correlation test. Results: The average MVF at the bilateral cerebral WM was lower in mTBI patients with PCS (median [interquartile range], 25.2% [22.6%–26.4%]) than that in controls (26.8% [25.6%–27.8%]) (p = 0.004). The region-of-interest myelin volume was lower in mTBI patients with PCS than that in controls at the corpus callosum (1.87 cm3 [1.70–2.05 cm3 ] vs. 2.21 cm3 [1.86– 3.46 cm3 ]; p = 0.003) and brainstem (9.98 cm3 [9.45–11.00 cm3 ] vs. 11.05 cm3 [10.10–11.53 cm3 ]; p = 0.015). The total myelin volume was lower in mTBI patients with PCS than that in controls at the corpus callosum (0.45 cm3 [0.39–0.48 cm3 ] vs. 0.48 cm3 [0.45–0.54 cm3 ]; p = 0.004) and brainstem (1.45 cm3 [1.28–1.59 cm3 ] vs. 1.54 cm3 [1.42–1.67 cm3 ]; p = 0.042). No significant correlation was observed between myelin volume parameters and neuropsychological test scores, except for the total myelin volume at the bilateral cerebral WM and verbal learning test (delayed recall) (r = 0.425; p = 0.048). Conclusion MVF quantified from the MDME sequence was decreased at the bilateral cerebral WM in mTBI patients with PCS. The total myelin volumes at the corpus callosum and brainstem were decreased in mTBI patients with PCS due to atrophic changes.