The Iligan Institute of Technology of the Mindanao State University is a public coeducational institution of higher learning and research university located in Iligan City, Philippines, charted in 1968 by Republic Act 5363 and integrated as the first autonomous unit of the Mindanao State University System in 1975.MSU-IIT offers programs in secondary, undergraduate, and postgraduate level education. Wikipedia.
Sanguila M.B.,Mindanao State University - Iligan Institute of Technology |
Siler C.D.,University of Kansas |
Diesmos A.C.,Herpetology Section |
Nuneza O.,Mindanao State University - Iligan Institute of Technology |
Brown R.M.,University of Kansas
Molecular Phylogenetics and Evolution | Year: 2011
We investigated phylogeography of Philippine slender toads (genus Ansonia) and used a temporal framework for diversification, statistical tests of alternate topologies, and Bayesian approaches to test previous hypotheses concerning dispersal to, and colonization routes within, the southern Philippine island of Mindanao. Two species of Ansonia previously have been documented, with ranges separated by an east-west split corresponding to the approximate boundaries of Mindanao's paleoisland precursors. We present new mtDNA sequence data (1946bp from genes encoding ND1, 16S rRNA and tRNA Leu) for 105 Ansonia specimens sampled from 20 localities on Mindanao Island. Our data suggest that Philippine Ansonia is composed of at least eight, well-supported population lineages, structured into a minimum of four highly divergent mtDNA clades. One clade corresponds to Ansonia mcgregori, a range-restricted species apparently limited to the distal portion of the Zamboanga Peninsula of western Mindanao. Two morphologically indistinguishable, but genetically divergent, lineages possibly are undescribed cryptic species from western Mindanao. We recognize the five remaining lineages as Ansonia muelleri pending data from morphology or bioacoustics that might diagnose separate species among these lineages. Regardless of their species status, the five allopatric lineages of A. muelleri should be viewed as important genetic units for future genetic conservation planning. © 2011 Elsevier Inc.
Canini N.D.,Misamis University |
Metillo E.B.,Mindanao State University - Iligan Institute of Technology |
Azanza R.V.,University of the Philippines at Diliman
Tropical Ecology | Year: 2013
We utilized biodiversity indices and multivariate techniques to investigate the relationship between environmental conditions and net phytoplankton composition and abundance during early (November) and mid (February) northeast (NE) monsoon, intermonsoon (May), and southwest (SW) monsoon (August) in Panguil Bay, an exploited mangrove estuary in Northern Mindanao, Philippines. Phytoplankton were composed of diatoms, dinoflagellates, and cyanobacteria. The centric diatom Coscinodiscus wailesii was the most common, but outnumbered by the chain-forming diatom Thalassionema frauenfeldii in SW monsoon. The harmful algal bloom dinoflagellate Ceratium furca became common in the warmest intermonsoon month of May, but its numbers did not reach bloom level. Two distinct assemblages (deeper, more saline, low abundance but high diversity stations located near the mouth of the bay, and shallower, less saline, high abundance but low diversity inner stations) appeared to oscillate horizontally with NE and SW winds. Depth, tide, and monsoon-related variables (total suspended solids, salinity, and dissolved nitrates) significantly influenced changes in phytoplankton community structure in Panguil Bay. © International Society for Tropical Ecology.
Mordeno I.G.,Mindanao State University - Iligan Institute of Technology |
Cue M.P.,Professional Regulatory Board of Psychology
Community Mental Health Journal | Year: 2015
Although Acute Stress Disorder (ASD) was introduced in the Diagnostic and Statistical Manual of Mental Disorders, fourth edition for a number of years already, only few studies have examined ASD in its latent level. Utilizing 998 respondents who experienced a deadly flashflood, the results revealed that of the 7 models, Dysphoric arousal model fitted best whereas the new DSM-5 single factor model received the lowest fit. The findings of the study are pertinent in the current changes of ASD in DSM-5 and would elucidate further ASD’s latent structure that best represent Asian sample, particularly Filipinos. © 2015, Springer Science+Business Media New York.
Liou W.-R.,National Taipei University |
Villaruza H.M.,Mindanao State University - Iligan Institute of Technology |
Yeh M.-L.,National Taiwan Ocean University |
Roblin P.,Ohio State University
IEEE Transactions on Industrial Informatics | Year: 2014
This paper presents a digitally controlled way of generating the sinusoidal signal with less memory consumption. Moreover, this paper also presents a new switching frequency modulation technique. This technique utilizes the concept of spread spectrum frequency modulation that is used to suppress the electromagnetic interference (EMI) caused by high switching frequencies. Measurement results at the output sine pulse-width generation show that when the spread spectrum technique was applied to the conventional triangular wave and the fundamental, second, and third harmonics of switching frequency were reduced, respectively, by 12.8, 11.2, and 16.4 dB trading off with the slight increase in total harmonic distortion (THD) of 0.092% from a THD of 2.34%. While in the inverter output, there was a 14-dB reduction in EMI peak in exchange to 0.12% increase in THD from a THD of 2.57%. © 2005-2012 IEEE.
Casuyac M.,Mindanao State University - Iligan Institute of Technology |
Bantaculo R.,Mindanao State University - Iligan Institute of Technology
MATEC Web of Conferences | Year: 2016
This study investigates the diffusion of hydrogen molecule physisorbed on the surface of silicene nanoribbon (SiNR)using the classical molecular dynamic (MD) simulation in LAMMPS (Large-scale Atomic/Molecular Massively Parallel Simulator). The interactions between silicon atoms are modeled using the modified Tersoff potential, the Adaptive Intermolecular Reactive Empirical Bond Order (AIREBO) potential for hydrogen - hydrogen interaction and the Lennard - Jones potential for the physisorbed H2 on SiNR. By varying the temperatures (60 K - 130 K), we observed that theδxdisplacement of H2 on the surface SiNR shows a Brownian motionon a Lennard-Jones potential and a Gaussian probability distribution can be plotted describing the diffusion of H2. Thecalculated mean square displacement (MSD) wasapproximately increasing in timeand theactivation energybarrier for diffusion has been found to be 43.23meV. © 2016 Owned by the authors, published by EDP Sciences.
Ducos M.B.,Mindanao State University - Iligan Institute of Technology |
Tabugo S.R.M.,Mindanao State University - Iligan Institute of Technology
AACL Bioflux | Year: 2015
Fluctuating asymmetry (FA) is any deviation from bilateral symmetry which is usually quantified as numerically unequal differences between the absolute of the right and left sides and is a useful trait to monitor developmental stability and ecological stress. This study sought to evaluate developmental stability of Gafrarium tumidum (ribbed venus clam) by the use of FA from two marine coastal areas of Mindanao, Philippines (Lugait, Misamis Oriental and Buruun, Lanao del Norte). Analysis was based on the Procrustes method and makes comparison of FA indices of homologous points and identifies the level of developmental stability of the bivalve species. Using landmark method for shape asymmetry, anatomical and mathematical landmarks were used and analyzed using Symmetry and Asymmetry in Geometric Data (SAGE) program. Thirteen landmarks were tested for samples for both populations. Procrustes ANOVA results showed variation and significant evidence of FA for both populations and no indication of Directional Asymmetry (DA). Possible explanation for significant FA for populations mean varying level of stress as experienced by populations, with Lugait relatively higher than Buruun, suggesting that there is a significant variation between the left and right side of each individual induced by the environment. Significant FA and increase FA present inability of species to buffer stress in its developmental pathways hence, would mean developmental instability and have implications on species fitness, adaptation and quality of individuals.
Metillo E.B.,Mindanao State University - Iligan Institute of Technology
Zoological Studies | Year: 2011
A multivariate analysis of stomach contents was used to investigate the trophic ecology of nighttime-collected Acetes intermedius in 2 adjacent near-shore estuaries in Iligan Bay, northern Mindanao, the Philippines from Feb. 1999 to Jan. 2000. Thirteen diet categories were observed indicating that A. intermedius is an omnivorous zooplanktivore with copepods, ostracods, decapod crustacean larvae, gastropod and bivalve veligers, and amorphous materials as dominant food items. Juveniles, however, showed a predominance of amorphous and fine materials. A linear ordination redundancy analysis showed that peak abundances of different dietary items coincided with monthly rainfall and sea surface temperature. The most common prey item of copepod fragments dominated in Mar. to June, months with high rainfall and warmer seas. Other common prey items, ostracods, bivalve and gastropod veligers, decapod crustacean fragments, chaetognaths, and tintinnids were correlated with cooler months from July to Nov. Peaks of most common ingested prey items were associated with dominance of equivalent zooplankton categories. The present study demonstrates that this species occupies an environmentally cued omnivorous feeding niche between lower-trophic-level plankton, particularly mesozooplankton, and higher predators in the pelagic zone of Iligan Bay.
Peteros N.P.,Mindanao State University - Iligan Institute of Technology |
Uy M.M.,Mindanao State University - Iligan Institute of Technology
Journal of Medicinal Plants Research | Year: 2010
The crude methanol extracts of four Philippine medicinal plants namely Brucea amarissima (Lour.) Merr. Bark, Intsia bijuga (Coebr.) O. Kuntze, Laportea meyeniana Warb, and Pipturus arborescens (Link) C.B. Rob leaves were examined for their antioxidant (radical scavenging) activity using 1,1-diphenyl-2- picrylhydrazyl (DPPH) free radical, and cytotoxicity using brine shrimp lethality assay (BSLA). LC 50 values for BSLA ranged from 37.7 to 89.5 μg/ml, with B. amarissima having the lowest value and therefore the most potent, and L. meyeniana having the highest value. EC 50 values for DPPH radical scavenging activity ranged from 343 to 1846 μg/ml, with B. amarissima and I. bijuga having the lowest and highest values, respectively. Phytochemical screening revealed the presence of flavonoids, tannins, triterpenes, steroids, anthraquinones, anthrones, flavonoid glycosides, and coumarins, which could be responsible for the bioactivities shown by these plants. © 2010 Academic Journals.
Uy M.M.,Mindanao State University - Iligan Institute of Technology
Journal of Chemical Health and Safety | Year: 2011
In the Philippines, some laws and regulations concerning chemical safety and security do exist. However, in general, an effective system of enforcement is still lacking. Moreover, chemical safety and security concerns are not a high priority, at least, especially in most state-run academic institutions. This paper explores the safety and security practices presently used in some state and private universities in Mindanao, Philippines. The Mindanao region has been considered a hot-bed of terrorism in the Philippines which makes security a main concern even in the academe. Although these universities generally use chemicals in typically small quantities, they are still considered a vulnerable target for chemical theft and diversion. The security measures currently employed as well as the needs and difficulties encountered to improve chemical safety and security practices are discussed. © 2011 Division of Chemical Health and Safety of the American Chemical Society.
Llantos O.E.,Mindanao State University - Iligan Institute of Technology
Lecture Notes in Engineering and Computer Science | Year: 2015
Modern Student Information System used Web based portal accessible using an internet browser, connected either through the internet or through the campus local network. Many of these have presented the data in textual mode and have no facility to connect socially in an existing social networking site to share visualised performance values. Moreover, the desktop web site is not designed for mobile devices thus making it hard to navigate on devices with limited screen capabilities. This study developed a module for Student Information System (SIS), named my.eskwela, which provides desktop and mobile access through web and SMS. my.eskwela desktop web interface provide different input mechanisms for faculty members thus easing the preparation of reports which includes the socially share-Able visualisation of attendance tracking and class grade monitoring to supply students and parents direct, real-Time access to the most relevant student academic information available through the web and through mobile platform. The results are remarkable such that not a single respondent in any user groups doubted its intention to use the systems as none expressed disagreement in this area. The results are actually good indicators that the three systems are good investments to set the bar of student information systems software services to higher level.