Pacific McGeorge School of Law
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Callison Curriculum Structure
No full texthttps://scholarlycommons.pacific.edu/callison-college-sis/1053/thumbnail.jp
Callison January Term Offerings
No full texthttps://scholarlycommons.pacific.edu/callison-college-sis/1055/thumbnail.jp
Determination of the Anti-Inflammatory Activity of the Methanolic Leaf Extract of Strelitzia reginae (Strelitziaceae)
No full textInflammation is a biological response that, if unregulated, can contribute to various health disorders. The search for new anti-inflammatory agents has led researchers to explore the medicinal potential of Strelitzia reginae, commonly known as the Bird of Paradise. This study aimed to determine the phytochemical composition and anti-inflammatory activity of the methanolic leaf extract of S. reginae. Phytochemical screening confirmed the presence of alkaloids, flavonoids, terpenoids, phenols, saponins, and steroids, while tannins were absent. The Croton Oil-Induced Ear Edema Assay in Swiss albino mice was used to assess anti-inflammatory activity, with Indomethacin as a positive control. Acute oral toxicity testing classified the crude extract as Category 5 under the OECD Guideline 423. Statistical analysis showed that the extract at doses of 25%, 50%, and 75% of LD50 did not exhibit significant anti-inflammatory activity (p \u3e 0.05), whereas Indomethacin demonstrated significant inflammation reduction (p \u3c 0.05). The findings suggest that while S. reginae contains bioactive compounds, its methanolic leaf extract lacks observable anti-inflammatory properties at the tested concentrations. Further studies should explore alternative extraction methods, higher concentrations, or different models to assess its potential therapeutic applications
Understanding Self-Efficacy and Motivation in Elementary Teachers: The Influence and Support of School Administrators
No full textTeachers’ attrition is commonly seen within the first five years in the profession. Various reasons exist as the cause for this decision including: low pay rates, lack of support and stress. With the important role educators hold, a clear understanding of their specific needs can help strengthen their abilities while remaining in the field. The purpose of this mixed methods study was to understand teachers’ perspectives of what influences their self-efficacy and motivation in order to promote strong work performance, effectiveness, increase teacher satisfaction and retention rates while highlighting the impact of support provided by school administrators. The research questions guiding this study were: What conditions allow for elementary school teachers to experience self-efficacy? What conditions promote motivation for elementary school teachers?
What supports, if any, can be implemented to positively increase self-efficacy? Utilizing a collection of surveys and a set of eight interviews, data was analyzed. Results showed that elementary teachers typically exhibit moderate levels of self-efficacy while their primary source of motivation originates from their prior experiences, their students’ achievements and positive interactions with administrators and colleagues. Findings helped create a series of recommendations for teachers, school site administrators, district administrations along with areas for possible further research.
Keywords: Self-efficacy, motivation, elementary teacher, administrative support, student achievement, teacher retentio
A Reader\u27s Guide to Daniel Bernoulli\u27s Recurrent Series
No full textThis is a commentary and reader’s guide to Daniel Bernoulli’s article “Observations concerning recurrent series”. It is intended to help the modern reader understand what Bernoulli is doing in that article
Assistance for the Calculation of Sines (Translation of E246)
No full textParalleling his famous relation eiφ = cos(φ) + i sin(φ), Euler establishes the equality (cos φ + i sin φ)n = (cos nφ + i sin nφ). He uses it to comprehensively derive trigonometric identities that convert arbitrary powers of sines and cosines of an angle (and products thereof) into sums of sines and cosines of multiples of that angle. Some negative and fractional powers are shown to yield infinite series. Euler further describes a general method to evaluate various infinite series involving weighted trigonometric functions. These results foreshadow Fourier series. As Euler points out, the scope of applicability of the proposed techniques extends far beyond the specific results given herein
Euler’s Original Derivation of Elastica Equation
No full textEuler derived the differential equations of elastica by the variational method in 1744, but his original derivation has never been properly interpreted or explained in terms of modern mathematics. We elaborate Euler\u27s original derivation of elastica and show that Euler used Noether\u27s theorem concerning the translational symmetry of elastica, although Noether published her theorem in 1918. It is also shown that his equation is essentially the static modified KdV equation which is obtained by the isometric and isoenergy conditions, known as the Goldstein-Petrich scheme
