3,923 research outputs found

    Pengukuran Tingkat Kebisingan di Jalan Raya Pekanbaru-bangkinang Sebelum di Bangun Bebas Hambatan (Highway)

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    Measurement of the noise level in the roadway of Pekanbaru-Bangkinang before building of Highway has been done. The sources of noise originated from the sound of vehicles that passed through the roadway. The level of noise has been measured by using a Sound Level Meter (SLM). The measurement of noise level carried out in two locations, first location was on roadway of Pekanbaru-Bangkinang KM 21 and the second location was at round aboard of Jalan Garuda Sakti and Jalan PekanbaruBangkinang. The noise level at first location was measured as a function of time from 07.00 until 18.00 pm during one week. In this research, the number of vehicles that passed through the first location have been counted every hour. Furthermore, the noise level was measured as a function of distance from the noise source using two SLMs, namely SLM type MS 6701 and SL 4112. The results showed that the noise level at the first location occurred on Saturday and Sunday at 16.00 to 18.00 with the highest value of 79.09 dBA and 78.28 dBA respectively, while the lowest noise value occurred on Friday at 12.00 to 13.00 pm with the value of 67.97 dBA. The highest noise level at the second location occurred at 17.00 to 18.00 with a value of 81.60 dBA. The value of noise level at the second location was higher compared to that of the first location. This was due to more number of vehicles that passed through that location compared to that of the first location. The profile of noise level occurred on Saturday was compared to that of the theoretical calculations. The result showed that both results had a similar characteristics. Moreover, the results of this research showed that the level of noise as a function of distance from the noise source was decrease with increasing the distance. The decrease of the noise level was caused by the absorption of the noise by the surrounding parameters such as air,vegetation and buildings nearby

    Comparasi Edge Detection Roberts dan Morfologi pada Deteksi Plat Nomor Kendaraan Roda Dua

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    Refers to the difficulty factor on the detection plate on this research will focus on the detection of two-wheeled vehicle number plate, where the data will be taken from the farm garage. The resolution of this problem will be attempted using techniques of digital image processing method of detection of edge (edge detection) and morphology. Study on the evaluation and the research results will be calculated using the technique of confussion matrix, this technique will measure on the success rate of approach will be obtained from the proposed method. of the proposed method is sufficiently high, namely 53% success rate, while the value of positive predictive value by which this value to know the success rate of the method to detect the entire image test is still extremely less just reached 40% success, while the value of negative value which is the value of preditive to know separation detection noise his success pretty well with a value of 56% success rat

    Neutron diffraction in a model itinerant metal near a quantum critical point

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    Neutron diffraction measurements on single crystals of Cr1-xVx (x=0, 0.02, 0.037) show that the ordering moment and the Neel temperature are continuously suppressed as x approaches 0.037, a proposed Quantum Critical Point (QCP). The wave vector Q of the spin density wave (SDW) becomes more incommensurate as x increases in accordance with the two band model. At xc=0.037 we have found temperature dependent, resolution limited elastic scattering at 4 incommensurate wave vectors Q=(1+/-delta_1,2, 0, 0)*2pi/a, which correspond to 2 SDWs with Neel temperatures of 19 K and 300 K. Our neutron diffraction measurements indicate that the electronic structure of Cr is robust, and that tuning Cr to its QCP results not in the suppression of antiferromagnetism, but instead enables new spin ordering due to novel nesting of the Fermi surface of Cr.Comment: Submitted as a part of proceedings of LT25 (Amsterdam 2008

    An Integrated View of Precambrian Eumetazoan Evolution

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    The eumetazoan clade of modern animals includes cnidarians, acoels, deuterostomes, and protostomes. Stem group eumetazoans evolved in the late Neoproterozoic, possibly before the Marinoan glaciation, according to a variety of different kinds of evidence. Here, we combine this evidence, including paleontological observations, results from molecular and morphological phylogeny, and paleoecological considerations, with deductions from the organization of the gene regulatory networks that underlie development of the bilaterian body plan. Eumetazoan body parts are morphologically complex in detail, and modern knowledge of gene regulatory network structure shows that the control circuitry required for their development is hierarchical and multilayered. Among the consequences is that the kernels of the networks that control the early allocation of spatial developmental fate canalize the possibilities of downstream evolutionary change, a mechanism that can account for the appearance of distinct clades in early animal evolution. We reconstruct preeumetazoan network organization and consider the process by which the eumetazoan regulatory apparatus might have been assembled. A strong conclusion is that the evolutionary process generating the genomic programs responsible for developmental formulation of basic eumetazoan body plans was in many ways very different from the evolutionary changes that can be observed at the species level in modern animals

    The Role of Drug-Taking Supervisors and Patient Adherence to Anti Tuberculosis Treatment at Ngawi Health Center, East Java

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    Background: Treatment adherence is essential for DOTS TB completion and cure. In Ngawi, East Java, DOTS TB treatment coverage has not reached the targeted level of 100%. Some patients did not adhere treatment or even did not complete it. This study aimed to investigate the association between the presence of drug-taking supervisors and patient adherence to DOTS TB treatment at Ngawi Health Center, East Java. Subjects and Method: This was a analytic cross-sectional study conducted at Ngawi community health center, East Java. A sample of 41 patients undertaking TB DOTS treatment were selected for this study. The dependent variable was treatment adherence. The independent variabe was presence of drug-taking supervisor. The data were collected using a set of questionnaire and observation. The data was analyzed using Odds Ratio and Chi Square. Results: There were 25 (94.7%) patients who adhered DOTS treatment and 6 (40%) patients who did not adhere DOTS treatment. Patient adherence to DOTS treatment was associated with the presence of drug-taking supervisor (OR= 16.67; 95% CI= 1.76 to 158.12; p=0.003). Conclusion: Patient adherence to DOTS treatment is associated with the presence of drug-taking supervisor. Keywords: drug-taking supervisor, treatment adherence, tuberculosis, patien
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