An architecture for a focused trend parallel web crawler with the application of clickstream analysis

The tremendous growth of the Web poses many challenges for all-purpose single-process crawlers including the presence of some irrelevant answers among search results and the coverage and scaling issues regarding the enormous dimension of the World Wide Web. Hence, more enhanced and convincing algorithms are on demand to yield more precise and relevant search results in an appropriate amount of time. Since employing link based Web page importance metrics within a multi-processes crawler bears a considerable communication overhead on the overall system and cannot produce the precise answer set, employing these metrics in search engines is not an absolute solution to identify the best search answer set by the overall search system. Thus considering the employment of a link independent Web page importance metric is required to govern the priority rule within the queue of fetched URLs. The aim of this paper is to propose a modest weighted architecture for a focused structured parallel Web crawler which employs a link independent clickstream based Web page importance metric. The experiments of this metric over the restricted boundary Web zone of our crowded UTM University Web site shows the efficiency of the proposed metric

Prevalence and effective factors on post-natal depression women in Garmsar, Iran

Background and aims: Depression is an affective (mood) disorder accompanied by the sense of disappointment, incompetence, sense of transgression, fear and sense of humility. Depression is the daily depressed-mood for two weeks. The aim of this study is analysis of the prevalence and effective factors on post-natal depression in women referring to Garmsar city health centers in 2015. Methods: This study is a descriptive and periodical study. The statistical population in this research includes the women who went to Garmsar city health centers during the second and third quarters in 2015, two months after their labor. The method of collecting data in this study was by census, and the data-collecting tool was Edinburg standard questionnaire for post-natal depression diagnosis. After collecting and re-controlling, the data were analyzed by SPSS 20 software package. Descriptive statistics (average and standard deviation) were used for describing the data. The analytical statistical tests (chi square and independent t-test) were used for the data analysis. Results: The findings showed that 40 out of 110 mothers were depressed (score of over 12), and the prevalence of post-natal depression mothers referred to Garmsar health centers was about 36%. The results indicated that there were no significant statistical relations between mother’s age, education, number of labor, types of childbirth, children’s sex, unwanted pregnancies, the history of sterility, and post-natal depression. Conclusion: Due to unpleasant effects of depression on the living qualities of mothers’ and the embryos’ and eventually the families, and due to its extensive prevalence in the city of Garmsar, precise identification of effective factors in emergence of this disorder seems to be essential. By awareness from its risk factors, some of the inevitable factors could be reduced or even confronted, and the relevant consequences can be reduced by timely and proper interventions

The relation of personality dimension with nationalism consumption level of the Sanandaj citizens

The purpose of this research is to determine the level of the Sanandaj citizens' personality dimensions and property relation with the nationalism consumption in 2004. The method of this study is descriptive and correlation kind. The statistic society of the current study consisted of Sanandaj people with the cognitive population property (education and economy situation) that according to the over 2000 persons of population density, 384 persons was chosen based on the Korjesi and Morgan with the classification method as the statistic objects. The information collective tool included the five personality factors questionnaire and the nationalism consumption measurement. For analysis the data, the SPSS statistic software, and for surveying the relation of the criterion and foresight variables, the analysis of the Regression and Variance correlation coefficients was used. The Regression analysis represented that the personality variable dimensions, predict the nationalism consumption variable variance at 5 percent level. This coefficient was having a positive effect in extroversion dimension, it means that with the extroversion level increment, the nationalism consumption will also increase, but in other dimensions (Excitement stability, flexibility, deontology, amiability), it had negative coefficient effect thus with any dimensions increment (Excitement stability, flexibility, deontology, amiability), the nationalism consumption level decrease

The Investigation of Psychometric Properties (Validity and Reliability Reassessment) of WHO QOL-BREF Questionnaire in Shahrekord Cohort Study

Background and aims: The purpose of this study was to revalidate the Persian version of the WHO quality of life (WHOQOL-BREF) instrument to determine the quality of life status in the Shahrekord Cohort Study (SCS) in the southwest of Iran. This study was designed to serve as one of the sources of the Prospective Epidemiological Research Studies in Iran. Materials and Methods: In this cross-sectional study, 2000 people were randomly selected from the study population of the SCS. The reliability and internal consistency of the WHOQOL-BREF were measured using Cronbach alpha coefficient and Pearson’s correlation. construct validity and factors measured using Pearson’s correlation matrices with each of its domains. To measure the face, content, and construct validities, the views of the panel of experts and exploratory factor analysis were used. In addition, the validity of the questionnaire was evaluated using linear regression. Results: All domains of the questionnaire met the minimum reliability standards (Cronbach alpha and intra-class correlation >0.7), except for social relationships. The results of comparison analysis indicated that the questionnaire discriminated well between subgroups of the study samples differing in their health status. Regarding validity, the Kaiser-Meyer-Olkin (KMO) value was 0.94 and the value of Bartlett’s test was 1699.01 (P≤0.001). Conclusion: The findings suggested that WHOQOL-BREF is a reliable and valid measure of healthrelated quality of life among SCS population. Keywords: Iran Quality of life Reproducibility Validit