IPA Awardees for November 2013

Erlinda S. Ganzon-Naret
Institute of Aquaculture
College of Fisheries and Ocean Sciences
UP Visayas

Growth Response and Feed Intake of Lates calcarifer to Four Different Dietary Protein Levels with Green Pea (Pisum sativum) Under Controlled Laboratory Condition. ABAH Bioflux, 5 (2): 137-144, October 2013.

Asian sea bass, Lates calcarifer is strictly a carnivorous fish and as been considered a potential prospect for commercial culture due to its rapid growth rate, high market demand and ability to accept formulated feeds. Protein is the most expensive dietary  component, and feeds represent about 50 % of operating costs in the intensification for the sea bass culture. A 75-day feeding trial was conducted with juvenile fish (initial mean weight = 0.62 g) at 10 % body weight to evaluate the effect of dietary protein levels on the growth response, feed intake and survival rate of sea bass. Four experimental diets were formulated to be isolipidic and isoenergetic with increasing levels of dietary protein from 35, 40, 45 and 50 %. The basal formulation contained animal and plant protein sources primarily from Danish fish meal, defatted soybean meal, shrimp meal, squid meal and green pea (Pisum sativum) meal, a non-conventional plant protein source which was incorporated in diets at 6.9 – 11.0 % of the total protein. The best growth and feed conversion ratio (FCR) were observed with sea bass fed diets containing 40 % crude protein. However the percentage weight gain was not significantly different from the group fed the 45 to 50 % protein diet.

Link to the article: http://www.abah.bioflux.com.ro/docs/2013.137-144.pdf
Impact Factor: Not yet available

Maria Mallari-Cuerdo and Jeffrey C. Pagaduan
Department of Sports Science
College of Human Kinetics
UP Diliman

Effect of Four Weeks of Indoor Rock Climbing on Anthropometric Measurements, Power and Strength of Female College Students. Asia Life Sciences, 22 (2): 403-411, July-December 2013.

Health benefits of indoor rock climbing

Indoor rock climbing in Metro Manila has been around since the early 90’s. In the University of the Philippines, it has been offered as a PE2 course since 1998, every semester the classes were always full, and the students describe it as a fun PE course to take even if the activity itself was quite challenging. Although it was obvious by means of observation that both the male and female students were improving both technically and physically, the author felt the need to do actual measurements and see if the improvements were significant enough given the limited number of sessions a typical PE class has. Female students with an average age of 18 yrs. and non-climbers were measured before and after the 4 week climbing program. The climbing program simply comprised of 2 hour sessions of 3x a week climbing for 4 weeks.  Height, weight, girth measurements, body fat as well as performance measures such as flexibility, leg power, strength and a climbing specific performance test was done. Results revealed that there was a significant decrease in the waist circumference of the students and a significant decrease in body fat%.  Although there was a decrease in grip strength found, upper body and core strength/endurance as well as lower body power improved. Climbing performance also improved significantly. In conclusion, a 4-week climbing program can provide significant health benefits to its participants.

 

Link to the article: http://journals.uplb.edu.ph/index.php/ALS/article/view/935
Impact Factor: 0.239

Ricardo T. Bagarinao
Faculty of Education
UP Open University

Graph Theoretic Approach in Analyzing the Navigation Paths of Online Learners. Asia Life Sciences, 23 (1): 331-341, January -June 2014. 

The study looked at the navigational behavior of students in an online undergraduate course in Science, Technology, and Society (STS). It is grounded on the concept of movement ecology, which assumes that movement of organisms is mediated by both intrinsic and extrinsic factors. It applies the graph theoretic approach, where the course site pages were considered as the vertices while the links between two pages were considered as the edges. Gephi was used to visualize students’ navigation patterns. Relative importance, number of visits, and navigation frequency for edges, vertices, and paths were computed. The results showed that students tend to navigate the pages (i.e. resources pages and forum discussion page) that contain the information they need to achieve their learning goals and/or perform their academic tasks. These pages had a higher computed number of visits, RI values and navigation frequencies than the other pages. Most students have also navigated nonlinearly (i.e. cyclical) in the course site though some of them have shown linear navigation patterns (i.e. acyclical). Nonlinear navigation patterns indicate that students had a full control over their navigation decisions while linear patterns indicate that students need some adaptive navigational advisements. This difference should be considered in designing an online learning environment to make it responsive to individual learner’s needs.

 

Link to the article: http://journals.uplb.edu.ph/index.php/ALS/article/view/1096
Impact Factor: 0.239

 

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