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Involution operated geometrically
(National Council of Teachers of Mathematics, 1955-04)
High school students of plane geometry may be interested in the central theme of this paper as a generalization of the usual problem of finding a line equal to the square of a given line.
Mathematical miscellanea: Two cube root curves
(National Council of Teachers of Mathematics, 1955-12)
It is a matter of common knowledge that it is impossible to duplicate a cube by means of the straightedge and compasses. There are, however, several methods which make use of algebraic curves. This presentation is intended ...
Squaring a circle
(National Council of Teachers of Mathematics, 1957-01)
It is impossible to construct a square equal to a given circle by the exclusive use of a straight edge and compass. This paper is intended to present a solution to this problem with a slight departure from the purely ...
Science education in the Philippines
(Wiley, 1959-04)
This article describes the status of science education in the Philippines. It begins with a brief overview of the history of the country and environment and the context of education. It describes the teaching of science ...
Spectrophotometric determination of anthocyanin content in six common vegetables
(2014)
Anthocyanins, the natural colorants that belong to a group of plant compounds called flavonoids, are responsible for most of the red, orange, purple, violet, magenta, and blue colors found in fruits, vegetables, legumes, flowers, and other plants. The six vegetables specifically imparting the red-violet to purple color which are of interest to the researcher are camote (Ipomoea batatas), lupo (Alternanthera sessilis), kolitis (Amaranthus tricolor), kadios (Cajanus cajan), balagay (Psophocarpus tetragonolobus), and sitaw (Vigna sesquipedalis). The objectives of this study were to quantify the total anthocyanin content (TAC) from each particular vegetable’s part which are the leaves, seedpods, and the seeds; and relate them to their anti-oxidant and disease-fighting potentials to benefit humankind. Total anthocyanin content in the methanol extracts were analyzed using the pH differential method. Spectrophotometric quantitation was used at 520 nm and the concentration was expressed as ug/g cyanidin-3-glucoside. Results showed that 4 out of these 6 vegetables have positive values for TAC. Balagay has the least TAC (5.68 ± 0.6), followed by camote tops (6.57 ± 0.3), sitaw (18.2 ± 0.1), and finally kadios having the highest value (50.6 ± 1.1). On the other hand, 2 vegetables were found to have negative values for TAC, lupo (-6.98 ± 0.1) and kolitis (-1.25 ± 0.1), which are suspected to have another type of plant pigment, specifically a betalain. It is recommended that qualitative tests be performed on both plants, to confirm the presence of betalains, and quantify them if proven present; determine the antioxidant properties of each; and identify what specific compound causes this property. It is further recommended to include at least one of the four vegetables in the diet due to its many health benefits, at affordable prices....
Casa Real de Iloilo: A tale of a heritage provincial capitol
(Philippine National Historical Society, 2016-12)
The Casa Real de Iloilo is the oldest and grandest building of its kind in the country. The heritage structure was built as the Provincial Capitol of Iloilo at the start of the sugar boom after the opening of the port of ...
Rural electrification: Its effects on people's socioeconomic life and aspirations
(1981)
The study wanted to find out whether households, institutions, and communities which have been exposed to electricity are socially and economically more progressive than those deprived of electrification.
With the use ...
Teaching English: Lived experiences of elementary teachers under the new normal
(2022)
The study was conducted to uncover the lived experiences of teachers teaching English in this new normal. The insights, challenges, adjustments both on the personal and professional lives of participants upon the implementation ...
Work-life balance and work engagement of medical technologists in a government hospital in Iloilo City
(2022)
This study aimed to determine the level of work-life balance and work engagement of medical technologists in tertiary government hospitals in Iloilo. Specifically, this study aimed to describe the personal characteristics ...
Socio-demographic characteristics, spousal relational management style and marital satisfaction among couples in rural and urban churches in Negros Occidental conference
(2015)
Marital satisfaction is the subjective perception of support in satisfying the dominant needs of each spouse. It is the dream and goal of every couple to live harmoniously with his/her partner.
The atmosphere that exists ...