Circular 20

Since fanning in Alaska first began and especially since dairy farming became the primary agricultural industry, there has existed a need for hardy legumes which would survive Alaska winters and produce satisfactory yields of high quality forage. To meet this need hundreds of legume species and strains have been introduced during the past 40 or more years. Almost all have lacked the necessary hardiness or have not been satisfactory agronomically. The release of Alaskland red clover in the spring of 1953 is the first time a hardy legume has been made available to growers in Alaska.Cooperating with the United States Department of Agriculture, Agricultural Research Administratio

Do Sharks Swallow Their Young for Protection?

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Is screening urinalysis in children worthwhile?

Screening urinalysis in asymptomatic children has not been shown to be beneficial (strength of recommendation: B; based on extrapolation from 1 meta-analysis). It is unlikely to be cost-effective and should be discontinued. While random urinalyses can be used for case finding of glucosuria, hematuria, pyuria, bacteriuria, and proteinuria, the routine use of screening urinalysis in asymptomatic patients is not likely to be an effective strategy

Mathematics : a place of loving kindness and resilience-building

Places of mathematical learning are not always places of loving kindness. Instead, they are sometimes loci of undetected cultural violence (Galtung, 1969) and associated harm. We explore how Cousin’s (2015) interpretation of love in the context of early years relates to building mathematical resilience across the lifespan. Our interpretation of loving kindness in the context of older learners includes unconditional positive regard (Rogers, 1961) and the explicit building of this into the classroom milieu. Education is understood in this work in a broad sense, not only as a means of acquiring knowledge and skills, but also an arena for making connections and gaining a shared understanding about what it is to be human (Tagore, 1933). One of the tools found helpful in the practice of loving kindness, especially where learners have experienced significant prior harm, is the growth zone model (Lugalia, Johnston-Wilder, & Goodall, 2013), informed by the hand model of the brain (Siegel, 2010) and the relaxation response (Benson, 2000). With unconditional positive regard, and with such tools, learners may be empowered to become less avoidant and more engaged with mathematics. They may also acquire resilience, including coping skills, to on greater challenges, once perceived as dangerous. Loving kindness in mathematics is enabling

Modification of the eikonal relation for chemical waves to include fluid flow

Propagating wave fronts resulting from autocatalytic chemical reactions have been the focus of much recent research. For the most part, the hydrodynamics resulting from such reactions has been neglected. In this work, a relation is derived for the normal speed of a propagating wave front as a function of the local curvature when fluid motion is allowed. This ‘‘eikonal’’ equation is a generalization of one which was derived in the absence of fluid flow. It is also shown that small variations in the fluid density due to the chemical reaction do not change the form of the relation

Convective Fingering of an Autocatalytic Reaction Front

We report experimental observations of the convection-driven fingering instability of an iodate-arsenous acid chemical reaction front. The front propagated upward in a vertical slab; the thickness of the slab was varied to control the degree of instability. We observed the onset and subsequent nonlinear evolution of the fingers, which were made visible by a {\it p}H indicator. We measured the spacing of the fingers during their initial stages and compared this to the wavelength of the fastest growing linear mode predicted by the stability analysis of Huang {\it et. al.} [{\it Phys. Rev. E}, {\bf 48}, 4378 (1993), and unpublished]. We find agreement with the thickness dependence predicted by the theory.Comment: 11 pages, RevTex with 3 eps figures. To be published in Phys Rev E, [email protected], [email protected], [email protected]

Importance of the Internet in University Curriculums: A Case Study at Sam Houston State University

The advances in technology today have made the use of the Internet important in almost every discipline. Educators, business people, scientists and those in the criminal justice field all rely on the Internet to help them perform their jobs to the fullest. The Internet is immense and has many uses that can assist student in each discipline. Knowledge of the Internet and the full extent of its capabilities are important to anyone entering the workforce in today’s technologically advanced environment. In order to keep their graduates competitive in this environment, it is important that universities offer courses which not only cover the basics of Internet use but also show how the Internet can help them advance and excel no matter which field they enter. The current lack of a course for all students which covers in-depth internet use opposed to the number of fields that utilize the Internet, and the extent to which they use it, exposes the need for a course to better prepare students for the changing environment they will enter after graduation