Peptide identification in tandem mass spectrometry is usually done by searching the spectra against target databases consisting of reference protein sequences. To control false discovery rates for high-confidence peptide identification, spectra are also searched against decoy databases constructed by permuting reference protein sequences. In this case, a peptide of the same sequence could be included in both the target and the decoy databases or multiple entries of a same peptide could exist in the decoy database. These phenomena make the protein identification problem complicated. Thus, it is important to minimize the number of such redundant peptides for accurate protein identification. In this regard, we examined two popular methods for decoy database generation: 'pseudo-shuffling' and 'pseudo-reversing'. We experimented with target databases of varying sizes and investigated the effect of the maximum number of missed cleavage sites allowed in a peptide (MC), which is one of the parameters for target and decoy database generation. In our experiments, the level of redundancy in decoy databases was proportional to the target database size and the value of MC, due to the increase in the number of short peptides (7 to 10 AA). Moreover, 'pseudo-reversing' always generated decoy databases with lower levels of redundancy compared to 'pseudo-shuffling'.
Bonneterre, Vincent;Bicout, Dominique Joseph;De Gaudemaris, Regis
Safety and Health at Work
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v.3
no.2
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pp.92-100
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2012
Objectives: The French National Occupational Diseases Surveillance and Prevention Network (RNV3P) is a French network of occupational disease specialists, which collects, in standardised coded reports, all cases where a physician of any specialty, referred a patient to a university occupational disease centre, to establish the relation between the disease observed and occupational exposures, independently of statutory considerations related to compensation. The objective is to compare the relevance of disproportionality measures, widely used in pharmacovigilance, for the detection of potentially new disease ${\times}$ exposure associations in RNV3P database (by analogy with the detection of potentially new health event ${\times}$ drug associations in the spontaneous reporting databases from pharmacovigilance). Methods: 2001-2009 data from RNV3P are used (81,132 observations leading to 11,627 disease ${\times}$ exposure associations). The structure of RNV3P database is compared with the ones of pharmacovigilance databases. Seven disproportionality metrics are tested and their results, notably in terms of ranking the disease ${\times}$ exposure associations, are compared. Results: RNV3P and pharmacovigilance databases showed similar structure. Frequentist methods (proportional reporting ratio [PRR], reporting odds ratio [ROR]) and a Bayesian one (known as BCPNN for "Bayesian Confidence Propagation Neural Network") show a rather similar behaviour on our data, conversely to other methods (as Poisson). Finally the PRR method was chosen, because more complex methods did not show a greater value with the RNV3P data. Accordingly, a procedure for detecting signals with PRR method, automatic triage for exclusion of associations already known, and then investigating these signals is suggested. Conclusion: This procedure may be seen as a first step of hypothesis generation before launching epidemiological and/or experimental studies.
Purpose: Smartphones, which are widely used worldwide to detect acceleration and position, have been used in the area of rehabilitation medicine in recent clinical research studies and tests. The aim of the present study was to determine the feasibility of using a smartphone application based on center of movement (COM) displacement to measure gait parameters in stroke patients in the clinical field of rehabilitation medicine. Methods: The study consisted of 30 stroke patients. The COM was measured using a smartphone application, Gait Analysis Pro, during a 6-m walk. Each patient performed three 6-m walking trials, and the smartphone application measured gait duration, gait speed, step length, cadence, and vertical and lateral displacement of the COM. The Kolmogorov-Smirnov test was conducted to determine the normality in gait parameters, and a repeated one-way analysis of variance (ANOVA) was performed to determine the consistency among the three trials. A p value of 0.05 was considered statistically significant in all the tests. Results: In all the measured parameters, the smartphone application showed a normal distribution, as shown by the results of the Kolmogorov-Smirnov test. There were no significant differences among the three repetitive walking trials. Conclusion: These results suggest that the smartphone application can be used for evaluating gait in stroke patients, as well as in healthy adults. However, prior to using the smartphone application in the clinical field, further research involving three-dimensional gait analysis is needed to enhance the confidence level of the findings.
Kim, Sang Hun;Jong, Hwa Song;Yoon, Myung Ha;Oh, Seon Hee;Jung, Ki Tae
The Korean Journal of Pain
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v.30
no.2
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pp.98-103
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2017
Background: The root of Peucedanum japonicum Thunb., a perennial herb found in Japan, the Philippines, China, and Korea, is used as an analgesic. In a previous study, sec-O-glucosylhamaudol (SOG) showed an analgesic effect. This study was performed to examine the antinociceptive effect of intrathecal SOG in the formalin test. Methods: Male Sprague-Dawley rats were implanted with an intrathecal catheter. Rats were randomly treated with a vehicle and SOG ($10{\mu}g$, $30{\mu}g$, $60{\mu}g$, and $100{\mu}g$) before formalin injection. Five percent formalin was injected into the hind-paw, and a biphasic reaction followed, consisting of flinching and licking behaviors (phase 1, 0-10 min; phase 2, 10-60 min). Naloxone was injected 10 min before administration of SOG $100{\mu}g$ to evaluate the involvement of SOG with an opioid receptor. Dose-responsiveness and ED50 values were calculated. Results: Intrathecal SOG showed a significant reduction of the flinching responses at both phases in a dose-dependent manner. Significant effects were showed from the dose of $30{\mu}g$ and maximum effects were achieved at a dose of $100{\mu}g$ in both phases. The ED50 value (95% confidence intervals) of intrathecal SOG was 30.3 $(25.8-35.5){\mu}g$ during phase 1, and 48.0 (41.4-55.7) during phase 2. The antinociceptive effects of SOG ($100{\mu}g$) were significantly reverted at both phases of the formalin test by naloxone. Conclusions: These results demonstrate that intrathecal SOG has a very strong antinociceptive effect in the formalin test and it seems the effect is related to an opioid receptor.
Park, Shin-Ae;Wang, Myoung-Ja;Cha, Nam-Hyun;Choi, Hee-Chung
Journal of East-West Nursing Research
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v.10
no.1
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pp.117-125
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2004
Purpose: This study was attempted to investigate the demand, the recognition, and the attitude of general people on Natural Family Planning Method(NFP), and to provide basic data for a development of a program to establish a healthy sexual life. Method: This is a descriptive correlative study, collecting data by questionnaires. The subjects were 130 people of three urban areas from March 1 to April 15, 2004. The measurement tool used was about demand, recognition, and attitude to the natural birth control method. The data analysis was done by number, percent and T-test, Pearson's correlation coefficient, using SPSS program. Results: The recognition, attitude, and demand to natural birth control method was 3.01, 2.84 and 2.73 respectively. The higher recognition of correlation for natural family planning, the higher attitude(r=.864, p=.000) and demand(r= .525, p=.000) of correlation for natural family planning. It was confirmed that the study subjects almost produced self esteem and confidence recognizing at the idea of life and self value, and positively thought of need, recognition, and attitude of natural family planning method which could keep their own health management. Conclusion: As the result above, we suggest that an educational program should be developed, diffused and supported, and culturally formed by nation and social group to insist the benefit of conjugal relations in natural family planning as well as to support the knowledge deficit.
This study is to determine the status of satisfaction and well-being and work environment aimed at SME workers, deficiencies is to improve the overall satisfaction improvement. As a result of the confidence analysis to verify the reliability of the measurement tool, all of the factors is somewhat higher reliability coefficient was found to less than 0.6. Job factors, relationship factors, compensating factors are subjected to multiple regression analysis as job satisfaction and welfare duties factors to determine the impact on satisfaction, relationship factors, the compensation factor as an independent variable and dependent of each job satisfaction and welfare satisfaction variable result of three factors, job factors and compensation factors, two factors had significant influence on job satisfaction. When the job factor ${\beta}$ value(0.584), the compensation factor(0.369) showed a net impact on job satisfaction big. By improving the business environment and well-being through improved employee satisfaction, it came to a positive attitude to business is expected to have a positive impact on the satisfaction of external customers.
The insecticide p-nitropheny diethyl thiophospate is alse known by the symbol E.605 and a legion of trade names including “parathion”. The insecticide is widely used in agriculture, but it is highly toxic and now clear that parathion behaves like a cholinergic drug by inhibiting the enzyme cholinesterase. In order to know acute toxicity and the changes of glucose concentrations and activity according to time lapsed in female mice given orally single with the half dose to $LD_{50}$ of parathion, glucose contents and cholinesterase activities in serum as well as cholinesterase activities in whole brain and spinal cord were investigated, otherwise median lethal dose ($LD_{50}$) of parathion given orally against female mice was determined. The results obtained were summerized as follows ; 1. $LD_{50}$ value of parathion given orally to female mice was 7.1mg/kg(95% confidence limits, 3.8-13.1mg/kg) 2. The inhibition rate of cholinesterase activities in serum of parathion-administrated mice according to time lapsed were peakly decreased to 61% after 30 minutes in comparison to control group, but activities were completely recovered after 48 hours. 3. The inhibition rate of cholinesterase activities in whole brain of parathion-administrated mice according to time lapsed were peakly decreased to 49% after 2 hours in completely recovered after 24 hours. 4. The inhibition rate of cholinesterase activities in spinal cord of parathion-administrated mice according to time lapsed were peakly decreased to 57% after 2 hours in comparison to control group, but activities were completely recovered after 48 hours. 5. The changes of glucose contents in serum of parathion-administrated mice according to time lapsed and in directly after death due to parathion poisoning were no significantly difference.
The purpose of this study was to understand and analyze the subjective structure of attitude The method was based on a Q-Methodological approach. The results of this study, there were four categories of smoking middle school students' attitude about smoking. The first type named Self Belief type that this type didn't sensible of their surrounding persons when they were smoking and they also were responsible for strong opinion at their behavior. The second type named Other's Awareness type that they were seen the behaviors they always have to see other person when they were smoked, but if they didn't smoke or have tobaccos they feel heavy and are restless. The third type named Solving of Anxiety type. They first used to smoke when they wanted to solve their anxiety, stress, awkwardness and angry. The fourth type named A Sense of Belonging Group type. This type followed if their friends were smoking they also did it with them. As to grasping of their motivation to smoking of middle school of students with smoking, they felt some intimacy and same quality each other. In consideration of various types of attitude about smoking, it was very necessary important to grasp the meaning because we were known about attitude, belief etc. And then Through getting hold of the meaning, we could understand with their thought and value of Students in middle school. Besides, as a substitute for the students were depending on smoking purposelessly will fix right self-confidence.
Purpose: This study aimed to evaluate the clinical significance of microscopic invasion to determine the adequate resection margin in early gastric cancer (EGC). Materials and Methods: A retrospective review was performed that included patients who underwent gastrectomy for clinical early gastric cancer (cEGC) at Seoul National University Hospital between January 2007 and December 2010. After subtracting the microscopic resection margin from the gross resection margin for each proximal or distal resection margin, microscopic invasion was represented by the larger value. Microscopic invasion and its risk factors were analyzed according to the clinicopathologic characteristics. Results: In total, 861 patients were enrolled in the study. Microscopic invasion of cEGC was $6.0{\pm}12.8mm$, and the proportion of patients with microscopic invasion ${\geq}0mm$ was 78.4%. In the risk group, tumor location, pT stage, and differentiation did not significantly discriminate the presence of microscopic invasion. The microscopic invasion of EGC-IIb was $13.9{\pm}16.8mm$, which was significantly greater than that of EGC-I. No linear correlation was observed between the overall tumor size and microscopic invasion (R=0.030). The independent risk factors for microscopic invasion ${\geq}20mm$ were EGC-IIb vs. EGC-I/IIa/IIc/III (odds ratio [OR], 3.103; 95% confidence interval [CI], 1.533-6.282; P=0.002) and male vs. female sex (OR, 1.655; 95% CI, 1.012-2.705; P=0.045). Conclusions: Male sex and EGC-IIb were independent risk factors for microscopic invasion ${\geq}20mm$. Examination of intraoperative frozen sections is highly recommended to avoid resection margin involvement, especially in cases of EGC-IIb.
Journal of Information Technology Applications and Management
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v.21
no.2
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pp.81-98
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2014
Recently, due to external environment like the changes in health policy and various healthcare accreditations, along with hospital's internal efforts to improve the quality of medical services, demands for the development of medical information systems are increasing. Some examples are clinical information like DUR (Drug Utilization Review), CVR (Critical Value Report), and automatic benefit processing by treatment purposes, or hospital DSS (Decision Support System) on overall medical practice. Such systems act as a guide in making clinic judgments during practice or in other medical practice, and their effects on the medical treatment improvements are being proven by previous studies. In the reality of increasing attention in the effects of medical treatment improvement, studies related to hospital DDS were mostly focused on clinical, technical, and engineering points of view, and studies focusing on the user viewpoint are very limited. In order to verify the effects of DSS on practice improvements and hospital's management performance, this study used a research model constructed to verify how SERVQUAL of hospital DSS affects hospital management performance in BSC (Balanced Score Card) point of view. To empirically verify the research model, a questionnaire was conducted on the basis of "K-University Hospital's DSS" on clinicians and hospital employees related to system development, and the relationships between the factors were analyzed through path analysis. As a result of path analysis, excluding reactivity, tangibility, confidence, reliability, empathy among service qualities, had partially significant effects on management performance factors (learning and growth, internal process, financial affairs). This study is to prepare the theoretical ground on the management performance analysis of hospital DSS, and suggest the service quality of the system that should be considered in the planning and development stages for improved system.
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