Life Sciences Commons^™

Minerva 2015, The Honors College

Minerva

This issue of Minerva includes an interview with Honors alumnus and Nobel Peace Prize winner, Bernard Lown; a celebration of retiring Assistant Dean, Barbara Ouellette; and memorial articles celebrating the lives of notable Honors supporters, Betsy Leitch and Dennis Rezendes. Other highlights include a spread on Honors student travel and community engagement; and an article on Honors graduate, Jill Pelto, whose artwork graces the front and back covers of the 2015 Minerva.

The Future Of Farming In Capable And Small Hands: The Young Farmer’S Movement In Waterloo Region 1907-1924, Morgan Williams

Laurier Undergraduate Journal of the Arts

No abstract provided.

Lessons For Life, Story Musgrave

The STEAM Journal

This piece explores the creation of character and talent through a wide diversity of education and experience.

Ecoscience + Art Initiative: Designing A New Paradigm For College Education, Scholarship, And Service, Changwoo Ahn

The STEAM Journal

The paper presents a new initiative, EcoScience + Art, which blooms at George Mason University. The creator explains the background, history, and recent activities of the initiative, and also introduces an on-going special project called “The Rain Project”, a student participatory project to design, construct, and monitor a green infrastructure (i.e., floating wetland) for sustainable stormwater management on campus. The special project is geared to design and present a new paradigm to integrate college education, scholarship, and service. The relevance of the initiative and the special project to STEAM education is discussed.

Beer And Brewing In German Culture: Bridging The Gaps Within Steam, John D. Sundquist

The STEAM Journal

A university-level course on science, history, and culture of beer and brewing offers students from a wide range of disciplines a unique opportunity to learn from each other. They gain an appreciation for STEAM and the interaction of a number of disciplines while examining a subject of growing interest. This paper provides a brief description of such a course and includes specific examples of ways in which students explore science, engineering, humanities and the arts, as these areas of research come together in the study of beer and brewing.

Predictive Modeling Of Oxygen Transmission Through Micro-Perforations For Packaging Applications, Ayman Abdellatief, Bruce A. Welt, Jason Butler, Eric Mclamore, Arthur Teixeira, Sanjay Shukla

Journal of Applied Packaging Research

Methods for creating precise perforations in respiring produce packaging are being increasingly adopted. Knowledge of oxygen transfer through perforated packaging and oxygen distribution in packages is necessary for successful packaging design of fresh produce. An approach to modeling perforated packaging performance was developed using a cylindrical chamber with precision perforations using Fick’s second law. The model was simulated using two techniques including Finite Element Method (FEM) using commercially available software and Finite Volume Method (FVM) through programming. Perforations were approximated as a source term in the second method. Both simulation techniques showed trends similar to experimental data.

3d Printing In Healthcare, Caleb Branch

The Review: A Journal of Undergraduate Student Research

Technology is everywhere. Technology surrounds every aspect of 21^st century life. It is in the cell phones we use, the cars we drive, and even the food we eat. A large portion of modern technology used is taken for granted and overlooked. Despite this, some technology fields continue to grow. Biomedical engineering, specifically 3D printing’s applications to healthcare, has been often overlooked until. Regardless of its status in the mainstream, 3D printing is prosperous in healthcare and its future looks bright. This piece analyzes 3D printing in healthcare. It hones in on the finer details of each specific topic, …

A Soil Parameters Geodatabase For The Modeling Assessment Of Agricultural Conservation Practices Effects In The United States, Mauro Di Luzio, Martin L. Norfleet, Jeffrey G. Arnold, Jimmy R. Williams, James R. Kiniry

International Journal of Geospatial and Environmental Research

Soil parameters for hydrology modeling in cropland dominated areas, from the regional to local scale, are part of critical biophysical information whose deficiency may increase the uncertainty of simulated conservation effects and predicting potential. Despite this importance, soil physical and hydraulic parameters lack common, wide-coverage repositories combined to digital maps as required by various hydrology-based agricultural water quality models.

This paper describes the construction of a geoprocessing workflow and the resultant hydrology-structured soil hydraulic, physical, and chemical parameters geographic database for the entire United States, named US-SOILM-CEAP. This database is designed to store a-priori values for a suit of models, …

The Journal Of Undergraduate Research: Volume 13

The Journal of Undergraduate Research

This is the complete issue of the South Dakota State University Journal of Undergraduate Research, Volume 13.

Effects Of Varying Methodologies On Grain Particle Size Analysis, J. R. Kalivoda, C. K. Jones, C. R. Stark

Kansas Agricultural Experiment Station Research Reports

Particle size reduction is an important component of feed manufacturing that impacts pellet quality, feed flowability, and pig feed efficiency. The correct determination of particle size is important for feed manufacturers, nutritionists, and pork producers to meet target specifications. The current method for determining the geometric mean diameter (dgw) and geometric standard deviation (Sgw) of grains has been published by the ANSI/ASAE S319.4. This method controls many variables, including the suggested quantity of initial material and the type, number, and size of sieves. However, the method allows for variation in shake time, sieve agitators, and the use of a flow …

Evaluating The Accuracy Of The 3-Sieve Particle Size Analysis Method Compared To The 12-Sieve Method, G. E. Bokelman, S. C. Stewart, A. L. Baldridge, J. C. Woodworth, S. S. Dritz, J. R. Kalivoda, C. R. Stark, C. K. Jones

Kansas Agricultural Experiment Station Research Reports

The 3-sieve particle size analysis method was developed to estimate the particle size of ground grain within feed mills without the time and expense required for a 12-sieve analysis. The 3-sieve method is more simplistic because it is hand-shaken and uses fewer sieves but has drawbacks because it is not as precise as the 12-sieve method. Because shaking is not automated, technician variation may impact results. Furthermore, the accuracy of the original 3-sieve method has been questioned because the method was developed for corn between 400 to 1,200μm, and the industry now grinds various grains more finely. Some …

Effects Of Feed Truck Rpm On Pellet Quality, Unloading Speed, And Feed Line Location On Pellet Quality And Nutrient Segregation, J. A. De Jong, J. M. Derouchey, B. Haberl, H. Williams, M. D. Tokach, R. D. Goodband, J. C. Woodworth, S. S. Dritz, C. R. Stark, C. K. Jones, L. Mckinney, D. Van Otterloo

Kansas Agricultural Experiment Station Research Reports

Two separate studies were conducted at one commercial feed mill and six commercial wean-to-finish pig sites in northwest Iowa to determine the effects of feed truck unloading auger RPM on pellet quality and unloading time (Exp. 1) and the effects of feed line location on pellet quality and nutrient concentration of intact pellets and their fines (Exp. 2).

For Exp. 1, feed samples were taken from each compartment of an 8-compartment, 24-ton Walinga (Walinga Inc., Guelph, Ontario) feed truck. Feed was unloaded using 3 unloading speeds as determined by the truck RPM of 900, 1,150, and 1,400. Each compartment was …

Irrigation Scheduling Based On Soil Moisture Sensors And Evapotranspiration, J. Aguilar, D. Rogers, I. Kisekka

Kansas Agricultural Experiment Station Research Reports

Irrigation scheduling is crucial to effectively manage water resources and optimize profitability of an irrigated operation. Tools that can be customized to a field’s characteristics can greatly facilitate irrigation scheduling decisions. Soil moisture sensors and the evapotranspiration (ET)-based KanSched are two of the tools that could be implemented in an irrigated farm. Focusing on the installation of soil moisture sensors, demonstration set-ups were established at the Southwest Research-Extension Center plots in Garden City, Kansas, and in a producer’s field, each with three types of moisture sensors at different depths. Among others, this project validates the importance of moisture sensors being …

Terahertz Imaging Platform To Characterize The Growth Of In-Vitro Breast Tumors, Scarlett-Marie Acklin

Inquiry: The University of Arkansas Undergraduate Research Journal

This study aimed at evaluating the ideal plating method and density for imaging with the terahertz (THz) spectrometer. In this study, different methods were used to grow in-vitro tumors using the 4T1 cell line. Here, attempts to grow breast tumors in-vitro were conducted. Results were produced in two environments, flat-bottomed plates and round-bottomed multiwell plates. The second method allowed for faster clumping and increased cell aggregation, producing tumors up to 7mm. Terahertz spectroscopy produced images that correlated well to photomicrographs taken of the in-vitro tumors. This methodology shows great promise for providing a reliable, parameter-controlled source of in-vitro breast tumors …

Response Of Drought Tolerant And Conventional Corn To Limited Irrigation, I. Kisekka, F. Lamm, J. D. Holman

Kansas Agricultural Experiment Station Research Reports

With declining water levels in the Ogallala aquifer, many wells cannot supply peak irrigation water needs for corn. Emerging drought-tolerant (DT) corn hybrids could help farmers maintain yield with limited capacity wells. A knowledge gap exists comparing transgenic DT and conventional corn hybrids in yield response to water level. The purpose of this study was to compare yield, yield components, water productivity, and irrigation water use efficiency response of DT corn with cspB (DKC 6267 DGVT- 2PRO) transgene trait and conventional corn hybrid (DKC 62-98 VT2PRO) with similar maturity to full and limited irrigation. Preliminary results from the 2014 growing …