81,472 research outputs found

    The Red Top

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    A Biogeographic History of the Plains Bison Focusing on Population and Range Dynamics

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    Early bison originated in Asia and migrated to North America by means of the Bering Land Bridge, which opened around 600,000 years ago. Just after the Wisconsin glaciation (11, 700 years ago), there were two allopatric species of bison residing in North American - the plains bison (Bos bison bison), and the woodland bison (Bos bison athabasce). European explorers and settlers recorded incredible numbers of bison in most parts of the present day United States. Bison thrived in North America until the mid-19th century, but experienced a drastic decline in population from about 60 million to only 1,000 as European settlers headed west. Currently, 95% of extant bison are part of industrial corporations that raise them for their meat and other byproducts. This paper explores the natural history, geographic distribution, near extinction, recovery, and current status of the bison within the United States

    An analysis of the effectiveness of a voice improvement program in a third grade class.

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    Thesis (Ed.M.)--Boston Universit

    MS-168: Lena and Dr. Robert Fortenbaugh ’13 Papers

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    This collection consists primarily of materials related to the professional activities of Dr. Robert Fortenbaugh as a historian and, to a lesser extent, a Lutheran clergyman. Activities represented include Lutheran ministry, publication, review, and requests for published works, speaking engagements, involvement in professional organizations, summer employment at colleges and universities, and communication with former students. His correspondence from 1931 to 1959, and his diary from a trip to Germany in 1933 most fully document his activity as a historian, although the handwriting in the diary is extremely challenging. In particular, the diary and accompanying materials demonstrate Robert’s specialized knowledge of religious history as he paid close attention to the Lutheran church in Germany during this period between world wars while also discussing Germany’s situation through a historical lens. A card file containing records of services performed, sermons given, and other ministry-related information, mainly from 1914 to 1923, provides insights into Robert’s early career as a clergyman. Special Collections and College Archives Finding Aids are discovery tools used to describe and provide access to our holdings. Finding aids include historical and biographical information about each collection in addition to inventories of their content. More information about our collections can be found on our website http://www.gettysburg.edu/special_collections/collections/.https://cupola.gettysburg.edu/findingaidsall/1141/thumbnail.jp

    Partial and Interaction Spline Models for the Semiparametric Estimation of Functions of Several Variables

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    A partial spline model is a model for a response as a function of several variables, which is the sum of a smooth function of several variables and a parametric function of the same plus possibly some other variables. Partial spline models in one and several variables, with direct and indirect data, with Gaussian errors and as an extension of GLIM to partially penalized GLIM models are described. Application to the modeling of change of regime in several variables is described. Interaction splines are introduced and described and their potential use for modeling non-linear interactions between variables by semiparametric methods is noted. Reference is made to recent work in efficient computational methods
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