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Formative Assessment And Its Influence On Classroom Community In Biocalculus, Rebecca A. Dibbs, Daniel Rios, Brian Christopher 2017 Texas A&M University-Commerce

Formative Assessment And Its Influence On Classroom Community In Biocalculus, Rebecca A. Dibbs, Daniel Rios, Brian Christopher

The Qualitative Report

Most of the attrition from STEM majors occurs between the first two semesters of calculus, and prospective life science majors are one of the groups with the highest attrition rate. One of the largest factors for students that persist in STEM major beyond the first semester of calculus was a sense of community and a perceived connection with their instructor. Since building a sense of community is one of the stated purposes of formative assessment, we investigated how instructor and student perceptions of the purpose of formative assessment contributed to the formation of classroom community in a calculus for life ...


Subject Files Pertaining To Miscellaneous Activities And Issues: Asc Annual Meeting Activities, October 30-November 2, 1975 (Conference Program Lists First Asc Panel, Nicholas N. Kittrie, Arnold S. Trebach, American Society of Criminology 2017 Selected Works

Subject Files Pertaining To Miscellaneous Activities And Issues: Asc Annual Meeting Activities, October 30-November 2, 1975 (Conference Program Lists First Asc Panel, Nicholas N. Kittrie, Arnold S. Trebach, American Society Of Criminology

Nicholas Kittrie

No abstract provided.


A Post Mortem Of The Eichmann Case--The Lessons For International Law, Nicholas N. Kittrie 2017 Selected Works

A Post Mortem Of The Eichmann Case--The Lessons For International Law, Nicholas N. Kittrie

Nicholas Kittrie

No abstract provided.


Risk Regulation At The Federal Level: Administrative Procedure Constraints And Opportunities, Jeffrey S. Lubbers 2017 Selected Works

Risk Regulation At The Federal Level: Administrative Procedure Constraints And Opportunities, Jeffrey S. Lubbers

Jeffrey Lubbers

An introduction to the legal framework within which employees of the "twigs" on our fourth branch of government must operate. Particular attention is given to research sponsored by the Administrative Conference of the United States which has dealt with, for example, process problems in resolving specific issues and in building consensus on broad policy matters. [Excerpt] “Administrative agencies - the "twigs" on our fourth branch of government - are established to handle the details of administration deemed too painstaking, technically complex or even controversial for direct Congressional or Presidential involvement. In the current government structure, sometimes called the "modem administrative state," these ...


The Regulatory Reform Recommendations Of The National Performance Review, Jeffrey S. Lubbers 2017 Selected Works

The Regulatory Reform Recommendations Of The National Performance Review, Jeffrey S. Lubbers

Jeffrey Lubbers

Of ten recommendations Mr. Lubbers discusses, several were of particular interest. These include encouraging consensus-based rule making and ADR in enforcement, as well as ranking risks and improving regulatory science.


The Specific Surface Area Values For Iowa Tills, Keith E. Schilling, Brian L. Gedlinske 2017 Selected Works

The Specific Surface Area Values For Iowa Tills, Keith E. Schilling, Brian L. Gedlinske

Brian Gedlinske

Specific surface area is a property used by earth scientists to estimate the proportion of expandable clay minerals in soils. In this study, specific surface area method is shown to compare favorably with standard clay mineralogical techniques in determining gross differences in expandable clay mineral content in tills. The results of over 100 measurements on till samples from Iowa indicate undifferentiated pre-Illinoian tills from southern and southwestern Iowa have the highest specific surface area values of Iowa tills (ranging from nearly 100 to greater than 150 m2/g) and Wisconsinan Dows Formation tills have the lowest average specific surface ...


Location And Efficiency Of The Iowa Feed-Manufacturing Industry, Allan A. Warrack, Lehman B. Fletcher 2017 University of Alberta, Edmonton

Location And Efficiency Of The Iowa Feed-Manufacturing Industry, Allan A. Warrack, Lehman B. Fletcher

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The American commercial mixed-feeds industry has experienced rapid growth, especially since World War II. Changes have occurred in the product produced, in the number, size, location, and technology of plants, and in the number, size, and organization of the purchasers of the industry’s products. The purpose of this study was to develop and use an analytical procedure to solve for the efficient number, size, and location of plants in the Iowa feed-manufacturing industry. Such information should assist the industry in adjusting to rapidly changing demand and technology.

The problematical situation out of which the specific objectives emerge is to ...


Potential Agricultural Production And Resource Use In Iowa, Jerry A. Sharples, Earl O. Heady, Mahmoud M. Sherif 2017 U.S.D.A.

Potential Agricultural Production And Resource Use In Iowa, Jerry A. Sharples, Earl O. Heady, Mahmoud M. Sherif

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The purpose of this study is to estimate the production or supply potential of Iowa agriculture and is part of a regional study designed for this purpose. Two levels of efficiency are examined in the Iowa study, average technical efficiency and advanced technical efficiency. The pattern of output, resources used, and levels of farm income are analyzed under both conditions. This summary, however, refers only to the conditions of advanced technical efficiency.

A representative farm-aggregation model was used in a linear-programming analysis of resource allocation and potential production. Thirty-one Iowa farms (representative of all the commercial crop and livestock farms ...


Projected State And Regional Resource Requirements For Agriculture In The United States In 1980, Leo V. Mayer 2017 Iowa State University of Science & Technology

Projected State And Regional Resource Requirements For Agriculture In The United States In 1980, Leo V. Mayer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

This study projects resource requirements for United States agriculture under alternative farm programs and various levels of export demand in 1980. Cropland, man-hours of labor, and capital required to produce each level of output are projected for a farm economy ranging from a free market with no controls on crop production to strict controls on all major crops through acreage quotas. Resource requirements are estimated by first allocating crop production among the various regions o f the United States in a manner to minimize total costs of producing and transporting grain and oilseed crops to the final point of consumption ...


Allocation Of Milk Among Products To Maximize Gross Income Of The Nation's Dairy Farmers Under 1964 Demand Functions, George W. Ladd, Gail E. Updegraff 2017 Iowa State University of Science & Technology

Allocation Of Milk Among Products To Maximize Gross Income Of The Nation's Dairy Farmers Under 1964 Demand Functions, George W. Ladd, Gail E. Updegraff

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Linear equations of farm level demand were obtained for milk used in six different products. These demand equations were used in several quadratic-programming analyses to determine levels of farm marketings of milk and cream or allocation among products that would have maximized farmers’ cash receipts from marketings of milk and cream in 1964. Each analysis computed farm and retail prices for milk used in various products, quantity used in each product and total cash receipts. In one quadratic program, the solution was unconstrained; i.e., no upper limit was imposed on prices, and no lower limit was imposed on quantities ...


Factors Affecting Farmland Values In The United States, John E. Reynolds, John F. Timmons 2017 University of Florida

Factors Affecting Farmland Values In The United States, John E. Reynolds, John F. Timmons

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Farmland value has more than quadrupled since 1940. Before the early 1950's, however, changes in farmland value had been closely related to changes in farm product prices and net farm income. But since that time, farmland value has increased substantially without a corresponding rise in net farm income. This widening spread between farmland values and net farm income created the interest for this study.

Our major objective was to identify the principal factors affecting farmland value and to estimate the effect of these variables. To accomplish this objective, we developed hypotheses to explain the changes in farmland value that ...


Econometric Analysis Of The Cattle Cycle In The United States, Josef Gruber, Earl O. Heady 2017 Iowa State University of Science & Technology

Econometric Analysis Of The Cattle Cycle In The United States, Josef Gruber, Earl O. Heady

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

This study has been made to further explain the cattle cycle in the United States and in three selected regions. Structural models of the cattle cycle are specified and estimated, and hypotheses about their parameters are tested. For this study, the cattle cycle is divided into three cycles that include the inventory cycle, the price and income cycle and the slaughter and import cycle. Further analysis is then made to determine the important explanatory variables within each cycle. Several simultaneous equation models are constructed of the form:

y' (t)C + x' (t)B + u' (t) = o'

where y' (t), x ...


Estimation And Imputation Of Crop Yield Advances By States And Regions, Ludwig Auer, Earl O. Heady 2017 Economic Council of Canada

Estimation And Imputation Of Crop Yield Advances By States And Regions, Ludwig Auer, Earl O. Heady

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The objectives of this study were: (a) to estimate the proportions of crop yield change attributable to crop variety improvement, higher rates of fertilization, regional specialization and other crop yield variables and (b) to determine how the relative economic yield level per acre changed over a 20-year period.

The analysis covers major crops on a state, regional and national basis. Based on time-series data, over 80 state crop-production functions were estimated for corn, wheat, oats, barley, grain sorghum, soybeans, flax, cotton and tame hay. Annual state crop yields were considered a function of inherent soil fertility, weather, crop variety improvement ...


Cost Economies In Cattle Feeding And Combinations For Maximization Of Profit And Stability, Earl O. Heady, James R. Gibbons 2017 Iowa State University of Science & Technology

Cost Economies In Cattle Feeding And Combinations For Maximization Of Profit And Stability, Earl O. Heady, James R. Gibbons

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Economic growth is having many important impacts on the structure of farming. One of the greatest effects of national economic growth on farm structure comes through changes in the relative prices of resources.

At low stages of growth, as in the United States a century back or in underdeveloped countries now, the supply of capital is small relative to the supply of labor. Consequently, the price of capital is relatively high, and the price of labor is relatively low. This situation of resource price favors farming methods or technology resting mainly on labor. The advantages of large-scale production methods, as ...


Rural Value-Orientations And Farm-Policy Positions And Actions, George M. Beal, Joe M. Bohlen, Rex H. Warland 2017 Iowa State University of Science & Technology

Rural Value-Orientations And Farm-Policy Positions And Actions, George M. Beal, Joe M. Bohlen, Rex H. Warland

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

There is limited consensus within the agricultural sector of the United States concerning government farm policy. American farmers differ widely in their perceptions of the proper role of government in agriculture.

It is generally believed that value and belief differences among farmers are meaningfully associated with the variety of positions and actions taken by farmers with respect to government farm policy. Several observers have suggested that, if these value and belief diversities can be clearly articulated and resolved, more rapid progress can be made toward solving many present farm problems. However, there is little information on the relationship between values ...


Efficient Organization Of The Farm Industry In The North Central Region Of The United States In 1959 And 1980, William E. Saupe, Donald R. Kaldor 2017 University of Wisconsin

Efficient Organization Of The Farm Industry In The North Central Region Of The United States In 1959 And 1980, William E. Saupe, Donald R. Kaldor

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

For the organization of the farm industry to be efficient in terms of income maximization would require that farm output be produced at minimum factor cost, that aggregate farm output clear the market at prices covering the factor opportunity costs and that the product mix be geared to the consumers’ wants. Meeting these requirements would mean that the income of individual farm operators would be maximized and that the farm industry would make its maximum contribution to national income.

Implicit in conducting the research reported here was the hypothesis that existing resource and production characteristics of the farm industry were ...


Evaluation Of A Firm Model In Estimating Aggregate Supply Response, Jerry A. Sharples, Thomas A. Miller, Lee M. Day 2017 U.S.D.A.

Evaluation Of A Firm Model In Estimating Aggregate Supply Response, Jerry A. Sharples, Thomas A. Miller, Lee M. Day

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The North Central Regional Research Project NC- 54, “Supply Response and Adjustments for Hog and Beef Cattle Production,” was started in 1961. The project statement lists these objectives:

(1) To estimate farm resource use and supply response of hogs and beef cattle in representative farm situations.

(2) To estimate total production of hogs and beef cattle and patterns of resource use for states in the North Central Region and for the nation.

(3) To determine the production situations and the areas in which a specified output of hogs and beef cattle would or could be produced most efficiently under various ...


Sowing Seeds Of Diversity And Inclusion In The Midwest, Tobie Matava, Harrison W. Inefuku 2017 Iowa State University

Sowing Seeds Of Diversity And Inclusion In The Midwest, Tobie Matava, Harrison W. Inefuku

Tobie Matava

Iowa State University is located in the middle of a state whose population is 92% White. The university's demographics are similarly homogenous, with 71–86% of students, faculty and staff identifying as White. Our poster highlights steps taken and programs implemented to reinvigorate a library diversity committee at a predominantly White institution. Information will be provided on efforts to diversify staff, increase cultural competency, and combat racism and identity-based prejudice of all kinds.


Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart 2017 Iowa State University

Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart

Thomas M. Isenhart

Macroinvertebrate and fish habitat is often degraded as a result of agriculture. Riparian buffer strips are commonly used to counteract the negative effects of agriculture in headwater streams. We assessed the relation of multi-aged riparian buffer strips to in-stream habitat, macroinvertebrate and fish assemblages in an Iowa stream. In-stream habitat, macroinvertebrates, and fish were sampled from two buffered sites and two unbuffered sites, with the greatest substrate, water depth, and velocity heterogeneity occurring in buffered sites. The highest macroinvertebrate richness (11) as well as fish species richness (14), diversity (1.99) and IBI score (3 7) were found in the ...


Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart 2017 Iowa State University

Relation Of Riparian Buffer Strips To In-Stream Habitat, Macroinvertebrates And Fish In A Small Iowa Stream, Jeremy P. Duehr, Michael J. Siepker, Clay L. Pierce, Thomas M. Isenhart

Thomas M. Isenhart

Macroinvertebrate and fish habitat is often degraded as a result of agriculture. Riparian buffer strips are commonly used to counteract the negative effects of agriculture in headwater streams. We assessed the relation of multi-aged riparian buffer strips to in-stream habitat, macroinvertebrate and fish assemblages in an Iowa stream. In-stream habitat, macroinvertebrates, and fish were sampled from two buffered sites and two unbuffered sites, with the greatest substrate, water depth, and velocity heterogeneity occurring in buffered sites. The highest macroinvertebrate richness (11) as well as fish species richness (14), diversity (1.99) and IBI score (37) were found in the site ...


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