Animal signaling systems frequently utilize multiple traits to produce and transmit a signal. These system elements may span multiple levels of organization. Functional integration of these traits may be expected to generate concordance in evolutionary pattern among system elements, such that evolutionary change in one system component is correlated with...
Rates of electronic cigarettes (or “e-cigarettes”) use among youth are so high that the Surgeon General declared them to be of “epidemic proportions” (A Report of the Surgeon General, 2012). If these rates go unchanged, e-cigarettes will likely be responsible for the creation of a new generation of combustible cigarette...
Since the late 1970s, archaeology has grown into an industry whose
practitioners work in both public and private sectors. As an industry, modern
archeology is commonly known as Cultural Resources Management, or CRM. CRM
emerged from a surplus of employment opportunities made available to archeologists
after the passing of National...
Over 100 years separate the 1918 Influenza and COVID-19 pandemics, and a multitude of science, public health and communication advancements have emerged. With the COVID-19 pandemic still underway, recently reaching the one million death mark in the United States alone (CDC, 2020), researchers are searching for clues as to how...
Background:
Chromatin structure can control gene expression and can define specific transcription states. For example, bivalent methylation of histone H3K4 and H3K27 is linked to poised transcription in vertebrate embryonic stem cells (ESC). It allows them to rapidly engage specific developmental pathways. We reasoned that non-vertebrate metazoans that encounter a...
This course of study has been planned for the
seventh and eighth grades in Oregon schools. One period
each week, or ninety minutes or more, is needed.
The study or cookery should be closely correlated with
the other school branches. High ideals of workmanship,
neatness, accuracy and skill should be...
A major factor in the ability of Pseudomonas fluorescens Pf-5 to act as a biological control agent is its production of antibiotics, including pyoluteorin (PLT), 2,4-diacetylphloroglucinol (2,4-DAPG) and pyrrolnitrin (PRN). The data provided in this thesis demonstrate that the presence of any of these antibiotics in the extracellular milieu affects...
The purpose of this study was to supply information
that would help improve typing courses by identifying
successful skillbuilding practices and to provide students
with a means of increasing speed and/or accuracy during
timed writings. More specifically, the purpose of this
study was to answer the question:
Does the previewing...
The acceleration in a second-order system is directly controllable
by the input. The Acceleration-Oriented Learning Controller
generates the input to control a second-order system and adjust this
input based on observations of the system's response in order to obtain
a particular acceleration pattern.
Large changes with time and some nonlinearities...
The functioning of marine habitats needs to be understood in the context of the ecological relationships and associations between organisms and the physical and biogenic environment they inhabit. Thus, it becomes important to explore and define habitat features which contribute to these relationships and which are important in the life...