IPA Awardees for August 2012

International Publication Awardees
August 2012

Eric A. Galapon
National Institute of Physics
College of Science
UP Diliman

Quantum time of arrival Goursat problem. Sombillo, Denny Lane B.; Galapon, Eric A. 2012. Journal of Mathematical Physics 53, 043702

In the world of atoms and molecules, anything that we can observe and measure are represented by operators. An operator is much like a device that takes in something as an input and transforms that input into some output. The paper describes how the operator corresponding to the time of arrival atoms and molecules at any given location can be constructed by means of semi-analytical and numerical methods.

Link to the article http://jmp.aip.org/resource/1/jmapaq/v53/i4/p043702_s1?isAuthorized=no

Merites M. Buot
Department of Human Kinetics
College of Arts and Sciences
UP Los Baños

Dance Movement Analysis of Tinikling: A portrayal of an agrobiodiversity landscape. Buot, Merites M. 2012. Asia Life Sciences 21 (1): 167-176

Tinikling is one of the most popular folk dances not only in the Philippines but to many parts of the world where there are Filipinos. It is one of the cultural treasures that attests the close association of the Filipinos with the biodiversity in the environment. Several dances use bamboo as their major implements. Most notably the Singkil and Tinikling. Singkil portrays the grandeur of the Maranao royalty while Tinikling, a dance originating from Leyte is both an occupational and a mimicry dance. Tinikling was once the National Dance of the Philippines portraying the attempts of the farmers to catch the tikling bird (Gallirallus striatus),the worst enemy of the local farmers. It portrays the community effort to hunt and prevent Tikling from infesting the ripe rice grains in the fields. Tikling is a species of bird notoriously associated with agricultural farms as pest. The dance is composed of at least two people depicting as farmers as clappers, holding and hitting the two parallel bamboo poles in the air and on the ground with a rhythm and a pair of dancers hopping and leaping  between the bamboo poles representing the tikling.  Skill in dancing Tinikling is very important to avoid being caught between the poles. Several hops and leaps characterize the movements which aptly portrayed the ideal rural agricultural landscape with the community people in the spirit of Bayanihan, seriously yet cheerfully looking for means to prevent tikling from infesting rice farms. The movement of tikling while it hopped around the farm picking out the ripened grains is well illustrated. In the local setting, the farmers would place some bitik (si-ay (siay or patibong in Samar and Leyte), traps made of bamboo to catch the annoying birds. Symbolism of the farmer’s perseverance in catching the tikling was clearly illustrated by the dancers holding the bamboo poles Our own people showed their recognition of the numerous uses and benefits of the bamboo not only for physical survival but also for emotional and survival through the famous dance, Tinikling.

Link to this article http://journals.uplb.edu.ph/index.php/ALS/article/viewFile/629/571

Rosario R. Rubite
Department of Biology
College of Arts and Sciences
UP Manila

Isolation of compound microsatellite markers in Begonia fenicis (Begoniaceae) endemic to East and Southeast Asian Islands. Nakamura, K., Huang, C., Rubite R.R., Leong, W.C., Kono,Y., Yang, H.A., and Peng, C.I. 2012. American Journal of Botany. 99: e20-e23.

The research proved the utility of the six microsatellite markers in B. fenicis to study relationships between habitat distribution and patterns of range expansion and gene flow. These markers are potentially useful for investigating geographic genetic structure in other species of the section.

Link to this article http://www.ncbi.nlm.nih.gov/pubmed/22203649

Rosario R. Rubite
Department of Biology
College of Arts and Sciences
UP Manila

West to east dispersal and subsequent rapid diversification of the mega- diverse genus Begonia (Begoniaceae) in the Malesian archipelago. Thomas, D.C., Hughes, M., Phutthai, T., Ardi, W.H., Rajbhandary, S., Rubite, R.R., Twyford, A.D. and Richardson J.E. 2012. Journal of Biogeography. 39: 98-113.

The results indicated the trend of Begonia dispersals between continental Asia and Malesia, and also within Malesia to be from west to east. The water bodies separating the Sunda Shelf region from Wallacea have been porous barriers to dispersal in Begonia following the emergence of substantial land in eastern Malesia from the late Miocene onwards. Frequent habitat and range fragmentations and amalgamations by climate and sea-level fluctuations during the Pleistocene may have accelerated these radiations, resulting in the remarkable Begonia species diversity found in Malesia today.

Link to this article http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2699.2011.02596.x/full

Rosario R. Rubite
Department of Biology
College of Arts and Sciences
UP Manila

Delimitation of Begonia L. sections Diploclinium and Baryandra (Begoniaceae) in the Philippines. Rubite, R.R. 2012. Asia Life Sciences 21 (2):363-373.

Evidence from morphological features presented in this paper proved that Philippine Begonia species, currently in section Diploclinium, form a homogenous group that is well differentiated from the type species of the section, B. grandis. Thus, by disassociating them from this type, on which sect. Diploclinium remains based, and at the same time, including B. oxysperma (type species of sect. Baryandra), all the Philippine begonias which until now are placed in sect. Diploclinium, are here newly assigned to section Baryandra.

Link to this article http://journals.uplb.edu.ph/index.php/ALS/article/view/711

Gina V. Pangga and Pompe C. Sta. Cruz
College of Agriculture
UP Los Baños

Spatial and Temporal Variations in Methane Fluxes from Irrigated Lowland Rice Fields. Gaihre, Y. K., Padre, A. T., Wassman, R., Aquino, E., Pangga, G.V. and Sta. Cruz, P.C. 2011. Philippine Agricultural Scientist. Vol. 94 No.4., 335-342.

Methane is a potent greenhouse gas that has 25X more global warming potential than CO2, thereby contributing 15% to enhanced global warming. Irrigated lowland rice fields contribute about 15% of the 598 Tg global CH4 flux. Upscaling of CH4 fluxes is hampered by uncertainties of diurnal, temporal and spatial variations, which should be narrowed down to obtain a reliable global CH 4 budget and to find an effective mitigation measure. We assessed the spatial and temporal variations in CH4 emissions and the factors affecting them. Emissions were measured using static chambers and a gas chromatograph. Soil analysis was done simultaneously to determine hot water-extractable carbon (HWEC) as a measure of the soil labile C fraction. There was pronounced spatial variation in CH4 emission. Of three experimental fields (UY, UE and UQ) where assessment of CH4 emission was conducted, the last one had the highest average CH4 emission rate and highest average labile soil C content.

Link to this article http://journals.uplb.edu.ph/index.php/PAS/article/view/680

 

Rolando B. Tolentino
College of Mass Communication
UP Diliman

Positioning positions in the Writing to the Future. Tolentino, Rolando B. (2012). Positions: Asia Critique. 20 (1, Winter 2012), 159-171.

The article describes academic writing and scholarship’s future direction, one in which a wager is made that signifies the necessity for a political kind of analysis, able to foreground the conditions of the possible relief from the state’s hegemony in the present.

Link to this article http://positions.dukejournals.org/content/20/1/159.abstract

Ian Jasper Agulo
Department of Physical Sciences
College of Science
UP Baguio

Dynamics of non-equilibrium quasiparticles in the superconducting cold-electron bolometer (SCEB). I. J. Agulo (2012). Philippine Science Letters, 5 (2), 118-121.

This is a theoretical study that describes the behavior of particles when they absorb energy from infrared and microwave radiation.

Link to this article http://www.philsciletters.org/article.2012n2.13p14.htm

agulo

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