Science and Mathematics Education Commons^™

Test 2066: Versatile 375, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Test 2054a: Case Ih Farmall 75c, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Biodiversity Heritage Library, Smithsonian Institution Libraries, Deanna Marcum

Copyright, Fair Use, Scholarly Communication, etc.

The Biodiversity Heritage Library (BHL), created in 2006, is the result of a collaboration of ten natural history museum and botanical garden libraries seeking to digitize core taxonomic literature and to make it free and openly available throughout the world. Today, the BHL includes fifteen member institutions whose efforts have shaped a collection of over 60,000 titles. It is supported through a combination of membership dues, in-kind support from member institutions, contributions from the user community, and direct support from the Smithsonian Institution Libraries, and it reaches tens of thousands of users each year. While managing the complex partnership has …

The History And Impact Of A College‐Level Field‐Based Course On Learner And Community Development, David M. Harwood, Leilani Arthurs

Discipline-Based Education Research Group Speaker Series

Providing students with inquiry‐based learning experiences was a key recommendation made in the National Academies' 2007 report, Rising Above the Gathering Storm: Energizing and Employing America for a Brighter Economic Future, and this presentation is about a model for providing such experiences to college‐level students through a field‐based geology course. GEOL 160 – Fundamentals of Geosciences in the Field was developed 10 years ago for undergraduate students preparing to be K‐12 science teachers. The goals of the course are to enhance undergraduate pre‐service science teachers’ (i) knowledge of geoscience and the nature of science, (ii) attitudes about science, and (iii) …

Nanoscience Outreach, Stephen Ducharme

Discipline-Based Education Research Group Speaker Series

Informal science education is an important and rewarding activity for scientist and scientists‐in‐training. We are fortunate at the University of Nebraska to have over 90 of faculty research group working with materials and nanoscience, and involving hundreds of students, post‐docs, and visitors. Some of us have banded together to develop an extensive nanoscience outreach effort that reaches nearly every corner of our community, with activities in a wide range of venues – in the schools, at the mall, at summer camps, with civic groups, at Science Cafés, at the Big Red Road Show, and many others – wherever you might …

Insects As Teaching Tools, Doug Golick

Discipline-Based Education Research Group Speaker Series

In this talk I will present on projects in which insects were used as instructional tools. This presentation will give an overview of how insects can be used for teaching with a variety of student age groups and how inquiry instruction can be promoted with insects. I will present overviews of 3 projects including Bumble Boosters, Bugs in the Classroom, and Web‐based insects identification tools. Bumble Boosters created a community of researchers that studied bumble distribution and abundance and artificial nesting domicile preferences. Forty Nebraska high schools were involved in this project.

Bumble Boosters’ teaching objectives were to raise public …

Hexapod Herald - Vol. 24, No. 5, November 2012

Hexapod Herald and Other Entomology Department Newsletters

Contents: Welcome -- Congratulations -- Grants -- Publications -- Faculty News - Meet an Off Campus Student -- Student News -- Calendar of Events

Excellent Teaching: A Collective Case Study Of Outstanding Elementary Mathematics Teachers' Teaching Of Mathematics, Michael J. Gay

College of Education and Human Sciences: Dissertations, Theses, and Student Research

This qualitative collective case study explored the mathematical teaching of three excellent elementary teachers who were nominated by experts in mathematics and mathematics educational organizations, agencies and universities. I examined what excellent elementary mathematics teachers know and do in their practice of teaching. The study depicts detailed verbatim interactions between the teachers and students during actual teaching episodes to give the reader naturalistic examples of the explanation patterns and questioning strategies that these excellent teachers used to further students’ understandings of mathematical concepts and procedures. Analyses of the pedagogical strategies, including the interactive exploratory problem solving format these teachers used, …

The National Academy Of Sciences Workshop On Assessments In Science Courses, Leilani Arthurs

Discipline-Based Education Research Group Speaker Series

The Next Generation Science Standards (NGSS), which have undergone the first stage of public review and are currently under development, address not only content knowledge but also scientific skills. As such, the National Academy of Sciences (NAS) Committee on Developing Assessments of Science Proficiency in K‐12 envisions the NGSS motivating change in the way that science is taught in the United States. A critical part of science instruction as it is envisioned with the NGSS involves using assessments. This DBER presentation will report on the latest NAS views regarding science proficiency assessments, as they were shared at all‐day workshop on …

Summer Institute On Scientific Teaching, Steven D. Harris, Anisa Kaenjak Angeletti, John Osterman

Discipline-Based Education Research Group Speaker Series

No abstract provided.

Young Children’S Understanding Of Conservation Concepts, Julia C. Torquati

Discipline-Based Education Research Group Speaker Series

This presentation will summarize an investigation of young children’s conservation knowledge and reasoning. Eighty‐two preschool aged children (3‐5 years) were interviewed at two points in time six months apart using a semi‐structured interview. The interview protocol developed by Peter Kahn (2001) was used to assess children’s conservation attitudes. This was the first time the interview was used with preschool aged children. Children were asked questions about the importance of animals, plants, parks, and gardens, and whether it is acceptable to litter (and why or why not). Fifty‐seven of the children attended a preschool located at a nature center, ten children …

Hexapod Herald - Vol. 24, No. 4, September 2012

Hexapod Herald and Other Entomology Department Newsletters

Contents

Welcome

Congratulations

Publications

Grants

Department Meeting Dates for Fall 2012

This 'N That

Faculty News

Student News

Meet an Off Campus Student

Condolences

Travel

Fond Farewell

Calendar of Events

Commutative Rings Graded By Abelian Groups, Brian P. Johnson

Department of Mathematics: Dissertations, Theses, and Student Research

Rings graded by Z and Z^d play a central role in algebraic geometry and commutative algebra, and the purpose of this thesis is to consider rings graded by any abelian group. A commutative ring is graded by an abelian group if the ring has a direct sum decomposition by additive subgroups of the ring indexed over the group, with the additional condition that multiplication in the ring is compatible with the group operation. In this thesis, we develop a theory of graded rings by defining analogues of familiar properties---such as chain conditions, dimension, and Cohen-Macaulayness. We then study the …

Boundary Value Problems For Discrete Fractional Equations, Khulud Alyousef

Department of Mathematics: Dissertations, Theses, and Student Research

In this dissertation we are interested in proving the existence of solutions for various fractional boundary value problems. Our technique will be to apply certain fixed point theorems. Also comparison theorems for fractional boundary problems and a so-called Liapunov inequality will be given.

Prime Ideals In Two-Dimensional Noetherian Domains And Fiber Products And Connected Sums, Ela Celikbas

Department of Mathematics: Dissertations, Theses, and Student Research

This thesis concerns three topics in commutative algebra:

1) The projective line over the integers (Chapter 2),

2) Prime ideals in two-dimensional quotients of mixed power series-polynomial rings (Chapter 3),

3) Fiber products and connected sums of local rings (Chapter 4),

In the first chapter we introduce basic terminology used in this thesis for all three topics.

In the second chapter we consider the partially ordered set (poset) of prime ideals of the projective line Proj(Z[h,k]) over the integers Z, and we interpret this poset as Spec(Z[x]) U Spec(Z[1/x]) with an appropriate identification. …

Modeling And Mathematical Analysis Of Plant Models In Ecology, Eric A. Eager

Department of Mathematics: Dissertations, Theses, and Student Research

Population dynamics tries to explain in a simple mechanistic way the variations of the size and structure of biological populations. In this dissertation we use mathematical modeling and analysis to study the various aspects of the dynamics of plant populations and their seed banks.

In Chapter 2 we investigate the impact of structural model uncertainty by considering different nonlinear recruitment functions in an integral projection model for Cirsium canescens. We show that, while having identical equilibrium populations, these two models can elicit drastically different transient dynamics. We then derive a formula for the sensitivity of the equilibrium population to …

An Analysis Of Nonlocal Boundary Value Problems Of Fractional And Integer Order, Christopher Steven Goodrich

Department of Mathematics: Dissertations, Theses, and Student Research

In this work we provide an analysis of both fractional- and integer-order boundary value problems, certain of which contain explicit nonlocal terms. In the discrete fractional case we consider several different types of boundary value problems including the well-known right-focal problem. Attendant to our analysis of discrete fractional boundary value problems, we also provide an analysis of the continuity properties of solutions to discrete fractional initial value problems. Finally, we conclude by providing new techniques for analyzing integer-order nonlocal boundary value problems.

Adviser: Lynn Erbe and Allan Peterson

The Weak Discrepancy And Linear Extension Diameter Of Grids And Other Posets, Katherine Victoria Johnson

Department of Mathematics: Dissertations, Theses, and Student Research

A linear extension of a partially ordered set is simply a total ordering of the poset that is consistent with the original ordering. The linear extension diameter is a measure of how different two linear extensions could be, that is, the number of pairs of elements that are ordered differently by the two extensions. In this dissertation, we calculate the linear extension diameter of grids. This also gives us a nice characterization of the linear extensions that are the farthest from each other, and allows us to conclude that grids are diametrally reversing.

A linear extension of a poset might …

Hexapod Herald - Vol. 24, No. 3, June 2012

Hexapod Herald and Other Entomology Department Newsletters

Contents: Welcome -- Meeting News -- Congratulations -- Publications -- Faculty News -- Grants -- Meet an Off-Campus Student -- Student News -- Travel -- Calendar of Events -- Entomology is 125

Learning To Teach Mathematics With Reasoning And Sense Making, Amy L. Nebesniak

College of Education and Human Sciences: Dissertations, Theses, and Student Research

This study uses teacher research to examine teacher learning in the context of instructional coaching. The author, a mathematics instructional coach, engaged in an intense three-week coaching relationship with a high school Algebra teacher. A detailed description of the teaching and learning of quadratics that took place during this research provide information about what and how a teacher learns to teach mathematics with reasoning and sense making. Mapping the terrain of quadratics deepened the teacher’s understanding of the mathematical content and encouraged him to adapt his textbook in order to build mathematical reasoning. Through the coaching process, the teacher also …

Preparing Stem Graduate Teaching Assistants To Teach, Sue Ellen Dechenne

Discipline-Based Education Research Group Speaker Series

No abstract provided.

Systems Of Nonlinear Wave Equations With Damping And Supercritical Sources, Yanqiu Guo

Department of Mathematics: Dissertations, Theses, and Student Research

We consider the local and global well-posedness of the coupled nonlinear wave equations

u_tt – Δu + g₁(u_t) = f₁(u, v)

v_tt – Δv + g₂(v_t) = f₂(u, v);

in a bounded domain Ω subset of the real numbers (Rⁿ) with a nonlinear Robin boundary condition on u and a zero boundary conditions on v. The nonlinearities f₁(u, v) and f₂(u, v) are with supercritical exponents …

Combinatorics Using Computational Methods, Derrick Stolee

Department of Mathematics: Dissertations, Theses, and Student Research

Computational combinatorics involves combining pure mathematics, algorithms, and computational resources to solve problems in pure combinatorics. This thesis provides a theoretical framework for combinatorial search, which is then applied to several problems in combinatorics. Some results in space-bounded computational complexity are also presented.

Obstacles To Addressing Race And Ethnicity In The Mathematics Education Literature, Amy Noelle Parks, Mardi Schmeichel

Department of Teaching, Learning, and Teacher Education: Faculty Publications

This Research Commentary builds on a 2-stage literature review to argue that there are 4 obstacles to making a sociopolitical turn in mathematics education that would allow researchers to talk about race and ethnicity in ways that take both identity and power seriously. The obstacles discussed are (a) the marginalization of discussions of race and ethnicity; (b) the reiteration of race and ethnicity as independent variables; (c) absence of race and ethnicity from mathematics education research; and (d) the minimizing of discussions of race and ethnicity, even within equity-oriented work.

Beginning Chemistry Teachers: A Longitudinal Study Of The Triplet Relationship, Krista Adams

Discipline-Based Education Research Group Speaker Series

No abstract provided.

Concept Inventory Design For Determining Students’ Conceptual Understanding Of Oceanography, Leilani Arthurs

Discipline-Based Education Research Group Speaker Series

Concept inventories are relatively new types of diagnostic instruments intended to measure student learning. Concept inventories exist for astronomy, biology, chemistry, engineering, fluid mechanics, geology, and physics. None is yet available for oceanography, and development of the Introductory Oceanography Concept Inventory Survey (IO‐CIS) serves to fill this gap. A context‐driven development strategy was designed to create this instrument. Qualitative methods utilizing grounded theory and classical test theory were used to construct it. Quantitative methods, including statistical methods associated with classical test theory and item response theory, were used to evaluate and further refine the IO‐CIS. The instrument is valid and …

Learning Interdisciplinary Pedagogies, Alison J. Friedow, Erin E. Blankenship, Jennifer L. Green, Walter Stroup

Department of Statistics: Faculty Publications

Advocates of interdisciplinary teaching and learning in higher education suggest that interdisciplinary courses “promise a wide range of desirable educational outcomes for students” (Newell 1994: 35). These outcomes include enhanced affective and cognitive abilities, increased understanding of multiple perspectives, greater appreciation for ambiguity, and superior capacities for creative thinking, among others (35). Despite claims about the possibilities interdisciplinary learning offers, we have few examples of how faculty from different disciplines work together to create interdisciplinary classroom environments where such outcomes can occur. In short, more examples of how faculty from different disciplines actually develop, engage, and revise interdisciplinary pedagogies with …

Nebraska Summary: S861 New Holland T6 175, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S901 Massey Ferguson 7620, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Program And Proceedings: Nebraska Academy Of Sciences 1880–2012, 132nd Anniversary Year, One Hundred-Twenty-Second Annual Meeting

Nebraska Academy of Sciences: Programs and Proceedings

Program

Applied Science and Technology

Biological and Medical Sciences

Nebraska Wesleyan University Health and Sciences Graduate School Fair

Aeronautics and Space Science, Poster Session

Maiben Memorial Lecture: "The Status of Nebraska's Native Aspen," "Buffalo" Bruce McIntosh, Western Nebraska Resources Council

Aeronautics

Anthropology

Biological and Medical Sciences

Chemistry and Physics

Collegiate Academy: Biology

Collegiate Academy: Chemistry and Physics

Earth Science

History/Philosophy of Science

Junior Academy, Senior High Competition

Teaching of Science and Math

Junior Academy, Junior High Competition