One of the methods of quake FREQUENCY investigation is the use of Fourier series and power spectrum. In this paper, the FREQUENCY of the major structural modalities in the earthquake is investigated using the power spectrum and the FREQUENCY of the earthquake, which has the greatest e ect on the structure response. For this purpose,  rst, using the discrete wavelet theory, the acceleration of the earthquake is  ltered up to 5 steps. At each stage of the  lter, two waves of approximations and details are obtained. By analyzing the FREQUENCY content of approximate waves and details using the power spectrum and the Fourier spectrum, it results that the FREQUENCY of the wave is closer to the original wave of the earthquake. For convergence, the e ect of FREQUENCY due to di erent frequencies in approximate waves is considered by the FREQUENCY e ects of di erent frequencies in the main earthquake hypothesis called the approximation of the approximate wave to the maximum acceleration of the wave of the main earthquake. In order to verify the validity of the hypothesis, again, the Fourier spectrum and the power spectrum should be plotted for new approximation waves. After examining the FREQUENCY of the wave of approximations, it is concluded that the hypothesis works well. By studying the FREQUENCY content of the new approximation wave, it follows that for dynamic analysis, the FREQUENCY range of the power spectrum is more accurate than the Fourier spectrum. For this reason, the power spectrum is used for analytical calculations. Finally, with the investigations carried out in this paper, for the FREQUENCY domain analysis, the scalar approximation power spectrum is plotted. Then, several structures of the modal analysis and under the FREQUENCY spectrum of earthquake analysis are in the FREQUENCY domain. From the FREQUENCY response analysis curve and the results of the modal analysis, the FREQUENCY of the dominant mode of the structure is predicted. Using the wavelet transform, the number of accelerated earthquake mapping points reaches 1/32 But there was little mistake in estimating the prevailing FREQUENCY of the structure.

Introduction: Scientific communities have always been concerned about validity of open-access articles. Given the challenges of quantitative citation analysis in evaluating scientific articles, content-based citation analysis, including opinion mining of citances, can bring about more transparent results about their validity. In view of this, the present study compared the opinions contained in citances about open-access and non-open-access articles. Methods: We used a quantitative content analysis method with citation and opinion analysis approaches. The citances, bibliographic, and bibliometric data were extracted from Colil and PubMed databases. Opinion scores were assigned to the citances through SentiWords. After processing the titles, abstracts, and citances, Cosine similarity of Term FREQUENCY-Inverse Document FREQUENCY (TF-IDF) values were calculated. The open-access and non-open-access articles were then paired by their similarities in abstracts, titles, and citances. The data were analyzed using Friedman test and Spearman correlation. Results: There was no significant difference between the open-access and non-open-access articles in terms of their opinion scores, despite a significant difference in citation advantages. The pairs’ citance and textual similarities had no significant correlation with their opinion distance. Conclusion: Although the open-access studies had citation advantage over their similar non-open-access peers, they showed no significant opinion distance. Besides, similar texts did not necessarily follow the same opinion patterns. Consequently, to complete the results of quantitative citation analysis, the content-based citation analysis is emphasized.

This longitudinal study investigated the impact of different FREQUENCY Patterns (FP) on the syntactic production of a six-year-old EFL learner in a home context. Target syntactic constructions were presented using games and plays and were traced for their occurrence patterns in input and output. Following each instruction period, the constructions were measured through immediate and delayed oral tests for their effects on the oral production. Instructional and measurement sessions were audio-recorded and transcribed into instruction and measurement corpora. Based on their occurrence rates in input and output, target constructions were categorized into High Input/High Output (HIHO), Low Input/Low Output (LILO), High Input/Low Output (HILO), and Low Input/High Output (LIHO) FREQUENCY patterns. Friedman procedure revealed significant differences among the learner‟ s production scores of the constructions with varying FPs. Wilcoxon signed-rank test located significant differences between the constructions with LILO and HIHO and those with HILO and HIHO FREQUENCY patterns. The study found that HIHO FREQUENCY pattern, in comparison, was the most efficient in developing productive acquisition of syntactic constructions by an EFL young learner. That is to say, instructor's input coupled with learner's output in the form of prompted, reformulated or spontaneous language, played a key part in heightening syntactic production of English as a foreign language. The findings can cast more light on the constantly debated issue of Teacher Talk Time (TTT) and Student Talk Time (STT) and it can be concluded that there should be a balance between TTT and STT so as to yield optimal L2 production gains.

Variation of FREQUENCY and voltage by load changes in a microgrid is a challenge in droop control method. Centralized restoration FREQUENCY or voltage in a microgrid requires communication link and therefore affects the advantage of decentralized droop control such as reliability, simplicity and inexpensiveness. This paper proposes a decentralized method that restores the FREQUENCY of a microgrid without any communication link and maintains these advantages. The method detects signal changing by wavelet transform (WT) to synchronize distributed energy resource (DER) that interfaced by converter to microgrid. Its operation principle and control method are explained and analyzed. The simulation results are presented to validate the effectiveness of the proposed method.

Background and Aims: Gastrointestinal polyps are proliferative or neoplastic mucosal lesions. The most important point about these polyps is risk of malignancy of them. This study was performed to determine type and FREQUENCY of polyps of gastrointestinal tract in Iranian population according to their locations.Materials and Methods: Totally, 210 patients referred to Rasoul-e-Akram Hospital in years 2006-2010 and had pathology report of gastrointestinal polyps were included in the study. FREQUENCY of gastrointestinal polyps was determined according to type, histological subtype, location, age and sex. The data was analyzed by software SPSS 16.Results: Of participants, 129 patients were male (61.4%) and 81 (38.6%) were female. The mean age of patients was 58.4±32 yr. The mode of age interval was 70-80 yr (25.2%). The most frequent presenting symptom was lower gastrointestinal bleeding as melena or hematochezia (31%). Colon and sigmoid were site of most of gastrointestinal polyps (74.2%). The most prevalent type of gastrointestinal polyps was adenomatous polyp which was reported in 175 patients (84.3%). The most common types of colonic and gastric polyps were adenomatous and hyperplastic types respectively.Conclusion: Our data is highly conwith advanced age and male sex, the most prevalent symptom and site of gastrointestinal polyps, and the most common types of colonic polyps. The FREQUENCY of gastric polyps in our population differs with some studies.

In this paper, a hybrid of Neural Network (NN) and Fast Traversal Filter (FTF) based controller in each area is used to determine the optimal parameters of Load FREQUENCY Control (LFC) of a realistic two area power system. The two area power system is modeled considering the various non -linearities like governor dead band, generation rate constraint (GRC) and boiler dynamics. Input to the controller i.e. the error signal is divided into two parts- linear and non- linear. The linear part of the input signal is minimized by the FTF algorithm, whereas the non- linear part is minimized by the NN algorithm. The output of the controller is the sum of the outputs of NN and FTF networks. The proposed hybrid controller requires less number of samples for training of weights, thus making the system fast. This is highly desirable in power quality problems. The various components of power system are reduced to transfer functions and the system performance is analyzed for 1% step load perturbation in area1 with different control lersproportional and integral (PI), neural network (NN) and NN+FTF based controllers. The simulations demonstrate the fast and smooth performance of the power system with the proposed controller. Simulated results evince the superiority of the proposed hybrid controller.

Background: This study was performed to determine the FREQUENCY of positive blood cultures in pediatric sepsis cases in Buali hospital from 1389 to 1392.Methods: In this descriptive-analytic cross-sectional survey, 204 children with sepsis attending to Buali hospital from 1389 to 1392 were evaluated.Findings: The results demonstrated that blood culture was positive in 12 cases (5.9%) that the related germ was Pseudomonas in 42%, Enterobacter in 50%, and E coli in 8%.Conclusions: According to the findings, it may be concluded that empiric therapy, usually used in sepsis work up for the children, is a logical step because if it is performed, only 6 out of 1 hundred cases would be positive.

Background: The evaluation of embryo morphology is one of the most important parameters used to evaluate developmental timing, also providing an indication of chromosomal failure or degeneration. The first step in the evaluation of a fertilization event is determining the number and shape of the pronuclei (PN). Normally fertilized eggs possess two even PN. However, some embryos which develop from abnormally fertilized zygotes may be tri-pronuclear zygotes (3PN). Methods: Thirty embryos were collected from 12 women who underwent in vitro fertilization (IVF) at Dr. Cipto Mangunkusumo General Hospital in Jakarta, Indonesia. Embryos were cultured until the blastocyst stage on days 5-6. The blastomere biopsy was performed by piercing the zona pellucida with a laser under a microscope. Chromosomal numerical abnormalities were analyzed using Next Generation Sequencing (NGS). Results: Among the 30 embryos with 3PN zygotes, 33. 3% had a normal chromosomal array, with 22 pairs of autosomes and 2 pairs of sex chromosomes. While the rest of sample population detected as abnormal chromosome (66. 7%), with the highest percentage of abnormality was triploidy 43. 3%, followed by mosaicism 13. 4% and aneuploidy 10%. Conclusion: This was a preliminary study revealed not all morphologically 3PN embryos are genetically abnormal.