Recherche
Voici les éléments 91-100 de 109
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 ...
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 ...
The Port of Iloilo: Its role in the development of Western Visayas
(Philippine National Historical Society, 1985-12)
The story of Iloilo as a port of entry officially started on 29 September 1855 when, by royal order of the Queen of Spain, it was opened to international trade. But the port had already been used for interisland commerce ...
History and legend in Western Visayan place-names
(Philippine National Historical Society, 1984)
Philippine place-names have not yet been well-studied. By place-names we mean the names of the various subdivisions of the country such as regions, provinces, cities, municipalities, municipal districts, barangays, sitios, ...
Pyruvate decarboxylase activity of Cyperus rotundus L. under upland and lowland conditions
(2006)
Pyruvate decarboxylase (PDC) activity was measured from the roots of Cyperus rotundus seedlings obtained from upland and lowland ecosystems. PDC activity was detected in small amounts in the lowland plants but was almost absent in the upland plants during germination in their respective ecotype environments. Subjecting the seedlings to 24 h of hypoxia resulted in a significant increase in enzyme activity in the lowland plants but leveled off as hypoxia was prolonged to 48 h. The upland plants exhibited an increase in PDC activity after 24 h hypoxia treatment following germination under upland conditions, which was further increased as the hypoxic treatment was extended to 48 h.
Total amylase activity present in the tubers of the lowland plants prior to germination was found to be high. Amylase activity in the lowland tuber decreased alter 24 h and 48 h of hypoxia following germination in water-saturated soil, but no change in amylase activity levels took place in the upland tubers prior to and during germination, and after 24 h and 48 h of hypoxia treatment.
Thus, the lowland ecotype of C. rotundus adapted to flooded conditions by maintaining high levels of soluble sugars to fuel the ethanol fermentation pathway, and by utilizing low rates of ethanol fermentation to conserve energy sources throughout extended periods of flooding stress.
The production of PDC isozymes was not observed to occur in the lowland weed ecotype after 24 h and 48 h of hypoxic treatment following germination. The PDC enzyme induced by hypoxia in both the upland and lowland weeds was characterized to have a distinct lag phase....
The Sulod: A mountain people in Central Panay, Philippines
(Ateneo de Manila University, 1958)
The writer first visited the Sulod settlements in the mountains of Central Panay in November 1955. This contact was accidental. Out of interest in studying native folktales, the writer, then an undergraduate student, toured the mountainsides of Panay collecting folk songs, stories and proverbs. It was during one of the trips to the upland barrios of Maasin, Janiuay, Lambunao, and Calinog in Iloilo province that his attention was called to a very long, popular tale called Hinilawod, portions of which were known in almost all places he visited. A close follow-up eventually led him to the Sulod settlements in the area of Mt. Siya and Mt. Bocboc, Tapaz, Capiz. However, lack of necessary field equipment and other materials prevented the writer from making recordings of the epic story. Luckily in October 1956, he was able to obtain the support of the Faculty Council of Central Philippine University, Iloilo City, and, together with Samuel Talapian, CPU radio technician, returned to the area and tape-recorded portions of the epic. This initial recording, however, was suspended after a week's time because the writer exhausted his funds and there was no immediate source where he could get additional financial assistance to carry on the field work.
In May 1957 the Asia Foundation took interest in the project. Supported by a liberal grant-in-aid from the Foundation, the writer returned to the area in June of that year to complete the recording of the epic, and to make a brief socio-cultural study of Sulod life. Upon reaching the area, however, he found his former informant unwilling to cooperate. This forced him to look for other informants. After a week's travel over the rugged mountain passes, he met an old practicing babaylan or "medium," Hugan-an by name, who could sing the entire story from memory. Hunger which ravaged the area during this part of the year considerably hampered the field work. The writer returned to the University and made arrangements for the final recording of the epic. Then in August, accompanied by Antonio Bernardino, another CPU technician, he went back to the mountains and stayed there until October.
This paper describes the Sulod people of Central Panay from the author's field work....