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Gorontalo, Indonesia

State University of Gorontalo is a state university in Gorontalo, Indonesia, that was established on 1 September 1963. At first the university was a junior college and part of Guidance and Counseling UNSULUTENG . In 1964 its status changed to Guidance and Counseling Branch IKIP Yogyakarta at Manado. In 1965 it joined the Teachers Training College branch in Manado Gorontalo.In 1982 the institution became one of the faculties of the Sam Ratulangi University Manado with the name of the Faculty of Teacher Training and Education UNSRAT Manado, Gorontalo. The institute was officially established in 1993 under the name College of Teacher Training and Education Gorontalo.In 2001 the institution was upgraded to State Teachers' Training College Gorontalo with five faculties and 25 study programs. On June 23, 2004, President Megawati inaugurated the State University of Gorontalo. Wikipedia.

Musa W.,State University of Gorontalo
ARPN Journal of Engineering and Applied Sciences

In this paper, we would investigate a hybrid modern and classical algorithm (HMCA) in parameter optimization of electricity demand forecasting. Genetic algorithm (GA) has been successfully applied in optimization problems. As a modern algorithm, GA has a capability to explore the solutions in the global search area, but its drawback is the slow rate of convergence and high number of iterations. The Nelder-Mead is one of the classical algorithms using simplex search methods. This technique, when combining with a modern algorithm can be used for faster optimization processing. The test performance of the hybrid algorithm model (HAM) is conducted using data for Indonesian electricity demand. Results have shown that HMCA is better than GA in term of accuracy and number of iterations. © 2006-2016 Asian Research Publishing Network (ARPN). All rights reserved. Source

Sasaki M.,Hokkaido University | Setiyono A.,Bogor Agricultural University | Handharyani E.,Bogor Agricultural University | Kobayashi S.,Hokkaido University | And 7 more authors.
Journal of virology

UNLABELLED: Bats are known to harbor emerging RNA viruses. Recent studies have used high-throughput sequencing technology to identify various virus species, including DNA viruses that are harbored by bats; however, little is known about the nature of these potentially novel viruses. Here, we report the characterization of a novel herpesvirus isolated from an Indonesian pteropodid bat. The virus, tentatively named fruit bat alphaherpesvirus 1 (FBAHV1), has a double-stranded DNA genome of 149,459 bp. The phylogenetic analyses suggested that FBAHV1 is phylogenetically grouped with simplexviruses within the subfamily Alphaherpesvirinae. Inoculation of FBAHV1 into laboratory mice caused a lethal infection. Virus infection was observed in lung, liver, and brain tissue. Serological and PCR screening revealed that fruit bats infected with FBAHV1 or its related virus are widely distributed in Indonesia. The identification of FBAHV1 makes a considerable contribution to our understanding of simplexviruses associated with bats.IMPORTANCE: Bats are known to harbor emerging viruses, such as lyssaviruses, henipaviruses, severe acute respiratory syndrome-like coronaviruses, and filoviruses. Although alphaherpesviruses are disseminated in humans and other animals, there is little information about their distribution in bats. Here, we isolated a previously unknown alphaherpesvirus from an Indonesian fruit bat. Genome sequence analysis suggested that the virus is a member of the genus Simplexvirus within the subfamily Alphaherpesvirinae, which also includes common human viruses, such as herpes simplex virus 1 and herpes simplex virus 2. FBAHV1 is the first bat-derived alphaherpesvirus whose complete genome has been sequenced. Copyright © 2014, American Society for Microbiology. All Rights Reserved. Source

Arifin Y.I.,Ehime University | Arifin Y.I.,State University of Gorontalo | Sakakibara M.,Ehime University | Sera K.,Iwate Medical University
Geosciences (Switzerland)

Mercury concentrations in the environment (river sediments and fish) and in the hair of artisanal gold miners and inhabitants of the Gorontalo Utara Regency were determined in order to understand the status of contamination, sources and their impacts on human health. Mercury concentrations in the sediments along the Wubudu and Anggrek rivers are already above the tolerable level declared safe by the World Health Organization (WHO). Meanwhile, commonly consumed fish, such as snapper, have mercury levels above the threshold limit (0.5 μg/g). The mean mercury concentrations in the hair of a group of inhabitants from Anggrek and Sumalata are higher than those in hair from control group (the inhabitants of Monano, Tolinggula and Kwandang). The mean mercury concentration in the hair of female inhabitants is higher than that in the hair of male inhabitants in each group. Neurological examinations were performed on 44 participants of artisanal and small-scale gold mining (ASGM) miners and inhabitants of Anggrek and Sumalata. From the 12 investigated symptoms, four common symptoms were already observed among the participants, namely, bluish gums, Babinski reflex, labial reflex and tremor. © 2015 the authors; licensee MDPI, Basel, Switzerland. Source

Jahja M.,Max Planck Institute for Polymer Research | Jahja M.,State University of Gorontalo | Bubeck C.,Max Planck Institute for Polymer Research
Journal of Nonlinear Optical Physics and Materials

We prepared thin films of the conjugated polymer poly(3-butylthiophene) by spin-coating and performed transmission and reflection spectroscopy to characterize the dispersion of linear refractive index and absorption coefficient at in-plane polarization. Slab waveguides of this regiorandom polythiophene derivative have mode propagation losses smaller than 1 dB/cm at wavelengths larger than 1000 nm. We determined the nonlinear refractive index and two-photon absorption of slab waveguides by means of intensity-dependent prism coupling using picosecond laser pulses in the range 700-1300 nm. These data yield the dispersion of the figures of merit, which appear promising for all-optical waveguide switching at wavelengths larger than 1200 nm. © 2010 World Scientific Publishing Company. Source

Joelianto E.,Bandung Institute of Technology | Wiranto I.,State University of Gorontalo
International Journal of Artificial Intelligence

The main problem in multi-sensor-multi-target tracking is data association problem that leads to multidimensional assignment problems. In this paper, a multidimensional assignment problem is solved by merging ant colony optimization, Kalman Filter and artificial neural network. The ant colony optimization algorithm is first applied to acquire the number of targets, next the states of the targets are estimated using the Kalman filter, and finally, the estimation results are improved by using the artificial neural network. In ant colony optimization algorithm, it has been investigated the process of choosing initial pheromone value of ants, ants placement in the second cycle and afterward. It is found that the ant colony optimization algorithm will produce better and faster search results if the initial pheromone value equals to the visibility and new ants are placed at the initial position in the next cycle on the point of the last visit of the previous cycle of ants. The proposed traget tracking system leads to improved performances in the simulation cases. © 2011 by IJAI. Source

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