University Knowledge Digital Repository UPLB (University of the Philippines Los Baños)
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Natural and Anthropogenic Factors Affecting the Development of Two Highland Agricultural Soils of Bukidnon, Philippines
This research was conducted in two highland areas of Bukidnon, Philippines: Miarayon, a sub-catchment of the upper Cagayan de Oro River; and Bendum, a sub-catchment of the upper Pulangui River. Due to their pyroclastic parent rock materials, soils in the upper Cagayan de Oro are classified as Andic Cambisol in open and convex positions, and Andic Umbrisol in concave and depressed positions. Soils in the upper Pulangui are classified as Pisoplinthic Acrisol, Ferralic Nitisol, and Acric Nitisol in areas with ultramafic rock parent materials, and Haplic Cambisol with pyroclastic deposits. Element contents in rocks were congruent to the total soil element content analysis results except for the total calcium which was higher in Miarayon. This is attributed to the parent rocks and soil management. Total magnesium and iron were highlighted in upper Pulangui soils because of their ultramafic rock parent materials. Soil management practices and length of cultivation were identified as anthropogenic factors affecting soil development. The constant application of organic fertilizers from chicken manure had caused the build-up of organic carbon and calcium in the topsoil of Miarayon soils. The differences in total organic carbon, total nitrogen, and potassium were highly significant, particularly in soil pH and total calcium between two sites in Miarayon. In Bendum, traces of phosphate fertilizers and lime application were evidenced by the relatively higher phosphorus and calcium content in topsoil. Tillage influenced the water conductivity in soils. Organic matter content increased the water-holding capacities of soil
Modeling the Moisture Content and Drying Rate of Zucchini (Cucurbita pepo L.) in a Solar Hybrid Dryer Using ANN and ANFIS Methods
Estimating product drying kinetics is critical to obtain the best drying process without compromising product quality and necessitates the development of numerical drying models. This research aims to compare the prediction models developed using artificial neural network (ANN) and adaptive network-based fuzzy inference system (ANFIS), two popular machine learning approaches in the recent years. Zucchini slices were chosen as samples and dried in a solar-assisted microwave belt dryer at 0.245 m/min belt speed and microwave powers of 0.7, 1, and 1.4 kW. On the data set obtained by computing the moisture content and drying rate values, prediction models were developed using ANN and ANFIS approaches. These models were evaluated using the coefficient of determination, mean absolute percent error, and root mean square error data. The ANFIS-based prediction model outperformed the ANN model in terms of drying rate performance, but the ANN model outperformed the ANFIS model in terms of moisture content values. Results showed that both methods established can be utilized to estimate zucchini slices
FEEDING STYLES OF CAREGIVERS OF CHILDREN WITH AUTISM SPECTRUM DISORDER (ASD) IN CANDABA AND SAN LUIS, PAMPANGA
The feeding styles of caregivers of children with autism spectrum disorder (ASD) in Candaba and San Luis, Pampanga was investigated to characterize their practiced feeding approach and its key determinants. Children with ASD depend on their caregivers for feeding due to late development of self-care skills, in which the feeding styles of the caregivers play a role in their eating habits. Qualitative research design using the phenomenological approach was used in this study to unearth the phenomenon of feeding children with ASD. Eleven (11) participants from Candaba and San Luis, Pampanga shared their narratives on feeding the children with ASD. Results found that indulgent feeding was the most used style, while no caregiver practiced uninvolved feeding. The former approach was used by caregivers whose children have strict preferences in food. Most caregivers have different approaches in parenting and feeding children with ASD. Feeding difficulties found were high food selectivity or strict food preference and mealtime behaviors. The children’s characteristics majorly dictate the styles used over their caregivers’, influencing their own eating habits. With this, feeding styles of caregivers in children with ASD must be studied further to determine if these contribute to eating habits like in typically-developing children
Love meter: mate characteristic preferences of young adults from the National Housing Authority (NHA) relocation site in Calauan, Laguna
the Influence of Nitrogen Nutrition Population Density on the Yield and Yield Components of Grain Sorghum at Fifty Centimeter Row Spacing
Two sorghum varieties, Darso and Feterita, were subjected to three nitrogen rates and three population densities. The experiment was conducted during the dry season (1967) and during the wet season (1968) at the Central Experiment Station, U. P. College of Agriculture.
Heading for Feterita was earlier than Darso during the dry season but later during the wet season. While Darso was not affected by season, Feterita prolonged the vegetative phase which would account for taller plants during the wet season. As nitrogen increased from 50 to 100 and 150 kilograms per hectare, heading was hastened.
Grain yield for Darso was higher than Feterita during the dry season. Nitrogen treatments, 100 and 150 kilograms, gave significantly higher yield than the 50-kilograms rate. Grain yield was also increased during the dry season as plant population increased from 100,000 to 150,000 and 200,000 plants per hectare
the Influence of Number of Plants to a Hill on the Yield of Corn at 100 Centimeter Row Spacing
The influence of number of plants to a hill at 100 centimeters row spacing on the yield of different corn varieties was studied at the Central Experiment Station, U. P. of Agriculture.
Population to a hill did not affect significantly plant height and yield but tended to decrease LAI with increasing plant number to a hill. However, there was a variety x population interaction on the yield because Aroman White and UPCA VAR 1 tended to decrease yield at 3 plants to a hill while UPCA VAR 4 to increase
Socioeconomic status, diet quality, and nutritional status of selected night shift workers in the Philippines
Shift work increases the risk to some chronic conditions like obesity and cardiovascular disease due to the disruption of circadian rhythm. Yet we cannot eradicate night shifts because of its role to the society. The study aimed to describe the relationship among socioeconomic status, diet quality, and nutritional status of the selected night shift workers in the Philippines. Cross-sectional study was conducted using convenience sampling, with a total of 76 eligible participants recruited. Three-part survey questionnaires were disseminated online, and diet quality was assessed using the Diet Quality Index – International (DQI-I). Study shows majority are from the middle middle-income and upper middle-income class, finished their baccalaureate, been working night shifts for 1-5 years, are overweight and obese. The overall DQI-I score is acceptable and comparable to the mean DQI-I score of adults in the Philippines. Spearman’s rho test shows a direct relationship between night shift work and nutritional status (r=0.422; p=0.001), suggesting that the prolonged exposure to night shifts, BMI increases along with the risk of developing chronic illnesses. An inverse relationship between income and the diet quality (r=-0.278; p=0.015) is also observed, indicating that with higher purchasing power, preferences are more likely to be consumed than healthy foods
Analysis of competencies of the Engineering Research and Development for Technology alumni of the University of the Philippines Los Banos
In the context of local and global workforce and people skills competitiveness, this study sought to determine whether the Engineering Research and Development for Technology - University of the Philippines Los Banos (ERDT-UPLB) alumni are competent in their chosen employment fields. Using the Likert scale of measurement, the skills, knowledge, and attitude competencies of engineering graduates were compared to the preferred competencies of employers and potential employers. Results showed no significant difference between the existing competencies of the ERDT alumni and the preferred competencies of prospective employers. Moreover, employers and potential employers have indicated a positive and favorable response to the current set of competencies of the alumni. Employers tend to have high expectations for the competencies of their employees, and they are satisfied to employ ERDT alumni based on their current skills, knowledge, and attitude competencies. The study also identified rooms for improvement of existing skill and knowledge competencies. Additionally, the current academic programs and the ERDT program can address the learning outcomes or the desired competencies for their graduates
Impact of social media on UPRHS teenage females\u27 self-perception of beauty
Since social media has been integrated in people’s daily lives, frequent usage of social media sites brought positive and negative influences on an individual’s self-perception. For instance, the prevalence of beauty and fashion-related content had been influential on how people, especially females, reflect on themselves. This study focused on teenage females’ views in their self-perception based on their usage of social media sites in terms of beauty. A survey was conducted to UP Rural High School female students ages 13-17 using the Qualtrics platform and correlational analysis was performed to check the relationship between variables. An interview was also conducted to further investigate the results from the survey. Based on the responses, social media usage specifically with becoming updated with the latest beauty trends, finding “fit inspirations”, becoming updated with the latest fashion trends, and comparing themselves to other people in social media are positively correlated. However, there is not enough evidence that the total number of hours spent on social media can have a big impact on teenage females’ changes in their self-perception. Further research on the study is recommended particularly on the other aspects of self-perception