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Mrican, Indonesia

Universitas Sanata Dharma is a Jesuit university in Yogyakarta in Indonesia. It is also known as USD or Sadhar. Sanata Dharma means “the true dedication” or “the real service”. The dedication and the service have been devoted to the greater glory of God and to the humanity. Universitas Sanata Dharma has 8 undergraduate schools with 25 departments, 3 graduate programs, 1 professional program, and 3 certified programs. Wikipedia.

Damanik A.,Sanata Dharma University
Electronic Journal of Theoretical Physics | Year: 2014

In order to accommodate nonzero and relatively large of mixing angle θ13, we modified the tribimaximal mixing(TBM) matrix by introducing a simple perturbation matrix to perturb TBM matrix. The modified TBM can reproduce nonzero mixing angle θ13 = 7.9° which is in agreement with the present experimental results. By imposing two zeros texture into the obtained neutrino mass matrix from modified TBM, we then have the neutrino mass spectrum in normal hierarchy. Some phenomenological implications are also discussed. © Electronic Journal of Theoretical Physics.

Setiawati A.,Sanata Dharma University
Asian Pacific Journal of Cancer Prevention | Year: 2016

Celecoxib, a selective inhibitor of COX-2, showed cytotoxic effects in many cancer cell lines including cervical cancer cells. This study investigated the effect of celecoxib on cell cycle arrest in HeLa cervical cancer cells through p53 expression. In vitro anticancer activity was determined with the 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT) method. A double staining method was applied to investigate the mechanism of cell death, cell cycling was analyzed by flow cytometryand immunocytochemistry was employed to stain p53 expression in cells. Celecoxib showed strong cytotoxic effects and induced apoptosis with an IC50 value of 40 μM. It induced cell cycle arrest at G2/M phase by increasing level of p53 expression on HeLa cells.

Damanik A.,Sanata Dharma University
Modern Physics Letters A | Year: 2011

We construct a neutrino mass matrix Mν via a seesaw mechanism with perturbed invariant under a cyclic permutation by introducing a parameter δ into the diagonal elements of Mν with the assumption that trace of the perturbed Mν is equal to trace of the unperturbed Mν. We found that the perturbed neutrino mass matrices M ν can predict the mass-squared difference Δ m 2 ij ≠ 0 with the possible hierarchy of neutrino mass is normal or nverted hierarchy. By using the advantages of the mass-squared differences and mixing parameters data from neutrino oscillation experiments, we then have neutrino masses in inverted hierarchy with masses: |m1| = 0.101023 eV, |m2| = 0.101428 eV and |m3| = 0.084413 eV. © 2011 World Scientific Publishing Company.

Sumarno L.,Sanata Dharma University
2013 International Conference on Quality in Research, QiR 2013 - In Conjunction with ICCS 2013: The 2nd International Conference on Civic Space | Year: 2013

In the field of handwritten word recognition field, word segmentation into letters is an approach that could be used. Using this approach, word segmentation would be a complicated task, especially when dealing with a cursive handwritten word. A simple method in word segmentation called oversegmentation could be used. This paper discusses a simple method using Kaiser window. In general, the word segmentation process in this paper can be described as follow: Input - Preprocessing - Segmentation - Output. The input is an image of isolated handwritten word in binary format, while the output is images of letter segment. The main purpose of preprocessing is to correct slant and slope. This preprocessing is necessary since the segmentation method used is sensitive with slant and slope. The main purpose of segmentation is to divide a word into some letter segments. Based on a subjective test result, it was shown that the minimum parameters for the Kaiser window that can be used effectively for oversegmentation are 8 points in window's length and 10 in beta value. As its window's length is getting longer and its beta value is getting bigger, it can also be used effectively for oversegmentation. However, it must be noted that if the letter size is getting bigger, there will be more letter segments resulted. © 2013 IEEE.

Sumarno L.,Sanata Dharma University
ARPN Journal of Engineering and Applied Sciences | Year: 2016

In the Discrete Cosine Transform (DCT) domain, the tones of musical instruments can be divided into two groups. The first one with the single significant local peaks and the second one with the multiple significant local peaks. The second one can be divided into two sub groups, which have many and a few significant local peaks. This research deal with multiple significant local peaks. In this research, segment averaging was used to reduce the number of DCT coefficients, in the DCT domain. In this case, the reduced number of DCT coefficients called feature extraction coefficients. Based on the experiment, when the segment averaging of DCT coefficients was used optimally for the tones which had many (i.e. thirteen) and a few (i.e. three) significant local peaks, it could give 8 and 16 feature extraction coefficients respectively. So, in order that segment averaging of DCT coefficients could be used optimally, either for the tones which have many or a few significant local peaks in the DCT domain, it could use segment length 4 points and DCT length 64 points. By using it, it could give 16 feature extraction coefficients. © 2006-2016 Asian Research Publishing Network (ARPN). All rights reserved.

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