The study of nonlinear vibrations of systems having two
degrees of freedom has met considerable attention during the past
few years. Nonlinear symmetrical systems have received most of it.
Normal mode motion of a system is defined as a periodic motion
such that the masses of the system assume repeated...
Impact is a large and complex field. It embraces both structures as simple as a
nail, and more complex systems, such as a car collision. A central feature of impact
theory is finding the dependence between the velocities before and after impact. The
transformation law of the velocities in an...
Chemical compounds produced by organisms, or natural products, are excellent sources of inspiration for anticancer pharmaceutical discovery (Rodrigues et al., 2016). Microtubule targeting agents are a specific class of compounds, often discovered from natural sources, that have been developed as clinically successful anticancer therapies (Steinmetz and Prota, 2018). In the...
The focus of postcolonial studies has shifted in the last decade or so from a struggle over history, the narratives of winners and losers—as recorded by the winners and resisted by the losers—to a struggle over geography. Power inequities formerly embodied in Manichean conceptualizations (Colonizer/Colonized, Oppressor/Oppressed, Occidental/Oriental, Self/Other, First World/Third...
Smart home devices are becoming increasingly popular and by 2021, it is estimated to have 80 million devices in the households of the U.S. The privacy and security threats involved with devices, as a result, are also scaling up in recent years. Smart home cameras have been hacked, private conversations...
This report describes research activities in the Oregon State University School of Engineering during the period from July 1, 1961 to June 30, 1962. Projects are listed according to the department in which the re search is being conducted. In some instances, research activities are interdisciplinary and involve staff members...
Tn5 mutagenesis of apdA (for antibiotic production) and deletion of
gacA (for global antibiotic and cyanide) resulted in the same pleiotropic phenotype in
Pseudomonas fluorescens (i.e. production of an array of secondary metabolites
including the antibiotics pyrrolnitrin, pyoluteorin, and 2,4-diacetylphloroglucinol as
well as a tryptophan-side-chain oxidase, hydrogen cyanide, and an...