Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (61)
- Life Sciences (37)
- Physical Sciences and Mathematics (29)
- Bioresource and Agricultural Engineering (27)
- Agriculture (23)
-
- Chemistry (17)
- Social and Behavioral Sciences (12)
- Materials Chemistry (10)
- Mechanical Engineering (10)
- Chemical Engineering (8)
- Medicine and Health Sciences (8)
- Nanoscience and Nanotechnology (8)
- Physical Chemistry (8)
- Biotechnology (7)
- Materials Science and Engineering (6)
- Other Chemistry (6)
- Sociology (6)
- Education (5)
- Environmental Sciences (5)
- Family, Life Course, and Society (5)
- Plant Sciences (5)
- Agronomy and Crop Sciences (4)
- Computer Sciences (4)
- Engineering Education (4)
- Public Health (4)
- Public Health Education and Promotion (4)
- Animal Sciences (3)
- Architecture (3)
- Arts and Humanities (3)
- Biochemical and Biomolecular Engineering (3)
- Keyword
-
- DDGS (6)
- Flowability (4)
- Physical properties (4)
- Atomic force microscopy (3)
- Adhesion (2)
-
- Automated Writing Evaluation (2)
- Biofuel (2)
- Green and Sustainable Topics in Engineering Education (2)
- Holoimage (2)
- Liquid surfaces (2)
- Merging (2)
- Properties (2)
- Simulation (2)
- Solubles (2)
- Surface dynamics (2)
- 3-D range data (1)
- 7075 aluminum alloys (1)
- ABS resins (1)
- Acnistus (1)
- Adenine (1)
- Adult Education (1)
- Algorithms (1)
- Allocation matrices (1)
- Allomone (1)
- Alloys (1)
- Alumina (1)
- Aluminum alloys (1)
- Aluminum metallurgy (1)
- Analytical milling (1)
- Animal behavior (1)
- Publication
-
- Kurt A. Rosentrater (25)
- Wenyu Huang (7)
- Debra M. Sellers (4)
- Kaitlin M. Bratlie (3)
- Song Zhang (3)
-
- Valery I. Levitas (3)
- Andrew W. Lenssen (2)
- Anja V. Mudring (2)
- Duane D. Johnson (2)
- Elena Cotos (2)
- Joshua L. Rosenbloom (2)
- Levi M. Stanley (2)
- Martin M. Thuo (2)
- Michael C. Dorneich (2)
- Nancy K. Franz (2)
- Nastaran Hashemi (2)
- Sarah A. Rajala (2)
- Steven P. Bradbury (2)
- Aaron J. Gassmann (1)
- Alexander H. King (1)
- Cassandra M.V. Nuñez (1)
- Chenxu Yu (1)
- David C. Jiles (1)
- Douglas D. Gransberg (1)
- Duck-Chul Lee (1)
- Elizabeth L. Stegemoller (1)
- Ganesh Balasubramanian (1)
- Iris V. Rivero (1)
- James S. Adelman (1)
- Jelena Bogdanović (1)
Articles 1 - 30 of 93
Full-Text Articles in Entire DC Network
Cooperative Extension: A Complex Organization, Nancy K. Franz, Lisa Townson
Cooperative Extension: A Complex Organization, Nancy K. Franz, Lisa Townson
Nancy K. Franz
The authors provide an overview of the Cooperative Extension System and its program evaluation challenges. Part of the historic land-grant system, Extension exists in all states and territories of the United States and is funded through federal, state, and local (usually county) appropriations, as well as competitive grants and other sources. Complex funding, staffing, and accountability structures combined with widely varying programs and delivery methods make program development and evaluation challenging for Extension. Although each state’s Extension service operates autonomously, they all share a need to communicate program impacts and public value, which has become the main driver for program …
Comparative Pollination Biology Of Sympatric And Allopatric Andean Iochroma (Solanaceae)1, Steven J. Hall, Stacy Dewitt Smith, Pablo R. Izquierdo, David A. Baum
Comparative Pollination Biology Of Sympatric And Allopatric Andean Iochroma (Solanaceae)1, Steven J. Hall, Stacy Dewitt Smith, Pablo R. Izquierdo, David A. Baum
Steven J. Hall
Field studies were conducted for 15 species of Iochroma Benth. and the nested genus Acnistus Schott to quantify the diversity of pollination systems and to assess the potential contribution of pollinator behavior to the persistence of closely related species in sympatry. We combined measures of pollinator visitation and pollen deposition to estimate the importance of major groups of pollinators for each species, and we calculated proportional similarity in the pollinator assemblage among species. We found that 12 species of Iochroma, encompassing a range of flower colors and sizes, were principally pollinated by hummingbirds and, in many cases, by the same …
Residual Stresses In Friction-Stir-Welded 2195 And 7075 Aluminum Alloys, Omar Hatamleh, Iris V. Rivero, Arif Maredia
Residual Stresses In Friction-Stir-Welded 2195 And 7075 Aluminum Alloys, Omar Hatamleh, Iris V. Rivero, Arif Maredia
Iris V. Rivero
Surface residual stresses (RSs) were characterized along friction-stir-welded 2195 and 7075 aluminum alloy (AA) plates. The surface measurements were obtained through X-ray diffraction (XRD) at five different locations along the weld. Each location consisted of several regions across the welded plate including the weld nugget, thermomechanically affected zone (TMAZ), heat-affected zone (HAZ), and base material. Measurements revealed that RSs were not uniform along the welded plate, with the highest RSs obtained on the middle of the plate. The RSs across the weld were also asymmetric relative to the weld centerline, with RSs as high as 231 MPa in the TMAZ …
Flowability And Handling Characteristics Of Bulk Solids And Powders—A Review With Implications For Ddgs, V. Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan
Flowability And Handling Characteristics Of Bulk Solids And Powders—A Review With Implications For Ddgs, V. Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan
Kurt A. Rosentrater
Much research regarding handling and storage characteristics of bulk solids has been conducted over the years. Physical properties of granular solids play a significant role in their resulting storage and flow behaviour, and are therefore essential to design appropriate, efficient, and economic bulk solids handling and storage equipment and structures. Distillers Dried Grains with Solubles (DDGS) is a bulk material that has been widely used as a protein source for ruminants and non-ruminants for more than two decades. Distillers grains are energy and nutrient dense, and are often used as a replacement for corn in animal diets. With the exponential …
Understanding Consumer Preference For Functional Barley Tortillas Through Sensory, Demographic, And Behavioral Data, Ayako Toma, Maria Botero Omary, Kurt A. Rosentrater, Elizabeth A. Arndt, Naruemon Prasopsunwattana, Sutida Chongcham, Rolando A. Flores
Understanding Consumer Preference For Functional Barley Tortillas Through Sensory, Demographic, And Behavioral Data, Ayako Toma, Maria Botero Omary, Kurt A. Rosentrater, Elizabeth A. Arndt, Naruemon Prasopsunwattana, Sutida Chongcham, Rolando A. Flores
Kurt A. Rosentrater
Consumption of whole grains as part of a health-promoting diet is encouraged among Americans due to beneficial nutrients and phytochemicals. The main objectives of this study were to investigate the effect of whole barley flour particle size on consumer acceptance of whole grain and soluble fiber-enriched tortillas; to examine the effect of demographic and behavioral data on consumer acceptance; and to establish relationships between consumer acceptance and survey results to identify market opportunities among particular groups of consumers. Four experimental tortillas and two representative commercial brands were tested by 95 untrained panelists using a 9-point hedonic scale for appearance, color, …
No Evidence That Bacillus Thuringiensis Genes And Their Products Influence The Susceptibility Of Corn Residue To Decomposition, R. Michael Lehman, Shannon L. Osborne, Kurt A. Rosentrater
No Evidence That Bacillus Thuringiensis Genes And Their Products Influence The Susceptibility Of Corn Residue To Decomposition, R. Michael Lehman, Shannon L. Osborne, Kurt A. Rosentrater
Kurt A. Rosentrater
The possibility that Bacillus thuringiensis (Bt) corn (Zea mays L.) residues resist decomposition compared to non-Bt residues would present direct (soil carbon turnover times) and indirect (changes in tillage practices) effects on carbon budgets in agricultural systems. We evaluated the relative decomposition of residue from two pairs of Bt and non-Bt corn hybrids from different seed manufacturers buried in the root zone of adjacent Bt and non-Bt corn plots over a period of 384 d. We found no persistent differences in residue decomposition among the different hybrids regardless of the seed manufacturer or the presence of the Bt genes (both …
Determination Of Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater
Determination Of Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater
Kurt A. Rosentrater
In a collaborative project between the USDA and Northern Illinois University, the use of ethanol corn processing by-products as bio-filler materials in the compression molding of phenolic plastics has been studied. This paper reports on the results of a machinability study in the milling of various grades of this material. Three types of samples were studied: 100%, 75% and 50% phenolic samples. The milling operation was carried out with a fixed depth of cut of 2.0 mm using a 12.5 mm diameter two-fluted end-mill. The cutting speed was varied between 120 and 160 m/min at feeds between 200 and 300 …
Flow Properties Of Ddgs With Varying Soluble And Moisture Contents Using Jenike Shear Testing, V. Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater
Flow Properties Of Ddgs With Varying Soluble And Moisture Contents Using Jenike Shear Testing, V. Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater
Kurt A. Rosentrater
Distillers dried grains with solubles (DDGS) are an excellent source of energy, minerals, and bypass protein for ruminants and are used in monogastric rations as well. With the remarkable growth of the US fuel ethanol industry in the past decade, large quantities of distillers grains are now being produced. Flow of DDGS is often restricted by caking and bridging during its storage and transportation. In our previous works, the Carr powder tester was used to measure various flow properties of DDGS. The objective of this study was to measure the flow properties (cohesion, effective angle of friction, internal angle of …
Ifees: Enhancing Engineering Education At A Global Scale, Lueny Morrell, Claudio Borri, Hans J. Hoyer, Sarah A. Rajala, Seeram Ramakrishna, Xavier Fouger, Bruno Laporte, José Carlos Quadrado, Maria M. Larrondo Petrie, Duncan Mckenzie Frasier
Ifees: Enhancing Engineering Education At A Global Scale, Lueny Morrell, Claudio Borri, Hans J. Hoyer, Sarah A. Rajala, Seeram Ramakrishna, Xavier Fouger, Bruno Laporte, José Carlos Quadrado, Maria M. Larrondo Petrie, Duncan Mckenzie Frasier
Sarah A. Rajala
Engineering and technology play a key role in globalization as developed and developing countries develop and implement effective and efficient strategies that advance their economies and social development. Engineering has played a critical role in economic development in the history of civilization, because engineers are important not only in solving local problems but also in knowledge creation and knowledge transfer. Thus, science and technology education need to be in continuous evolvement in order to keep assisting countries reduce poverty, boost socio-economic development and make the right decisions for sustainable and environmentally compatible development. In a flat world, a global approach …
Enhancing Extension Employee Coaching: Navigating The Triangular Relationship, Nancy K. Franz, Robin Weeks
Enhancing Extension Employee Coaching: Navigating The Triangular Relationship, Nancy K. Franz, Robin Weeks
Nancy K. Franz
Coaching Cooperative Extension employees is not easy but provides invaluable results. All three parties in the triangular coaching relationship--the coachee, the coach, and the organization--develop and grow from the process, in turn improving and sustaining the organization. The coaching process helps employees get to know themselves better, be more conscious about their way of being in the world, and contribute more fully to the work around them. This article addresses the importance of coaching employees, characteristics of good coaching, coaching risks, and tips for successful coaching of Cooperative Extension employees.
Unsteady Nanoscale Thermal Transport Across A Solid-Fluid Interface, Ganesh Balasubramanian, Soumik Banerjee, Ishwar K. Puri
Unsteady Nanoscale Thermal Transport Across A Solid-Fluid Interface, Ganesh Balasubramanian, Soumik Banerjee, Ishwar K. Puri
Ganesh Balasubramanian
We simulate unsteady nanoscale thermal transport at a solid-fluidinterface by placing cooler liquid-vapor Ar mixtures adjacent to warmer Fe walls. The equilibration of the system towards a uniform overall temperature is investigated using nonequilibrium molecular dynamics simulations from which the heat flux is also determined explicitly. The Ar–Fe intermolecular interactions induce the migration of fluid atoms into quasicrystallineinterfacial layers adjacent to the walls, creating vacancies at the migration sites. This induces temperature discontinuities between the solidlikeinterfaces and their neighboring fluid molecules. The interfacial temperature difference and thus the heat flux decrease as the system equilibrates over time. The averaged interfacial …
Protection Of Retinal Cells From Ischemia By A Novel Gap Junction Inhibitor, Satyabrata Das, Dingo Lin, Snehalata Jena, Aibin Shi, Srinivas Battina, Duy H. Hua, Rachel A. Allbaugh, Dolores J. Takemoto
Protection Of Retinal Cells From Ischemia By A Novel Gap Junction Inhibitor, Satyabrata Das, Dingo Lin, Snehalata Jena, Aibin Shi, Srinivas Battina, Duy H. Hua, Rachel A. Allbaugh, Dolores J. Takemoto
Rachel A. Allbaugh
Retinal cells which become ischemic will pass apoptotic signal to adjacent cells, resulting in the spread of damage. This occurs through open gap junctions. A class of novel drugs, based on primaquine (PQ), was tested for binding to connexin 43 using simulated docking studies. A novel drug has been synthesized and tested for inhibition of gap junction activity using R28 neuro-retinal cells in culture. Four drugs were initially compared to mefloquine, a known gap junction inhibitor. The drug with optimal inhibitory activity, PQ1, was tested for inhibition and was found to inhibit dye transfer by 70% at 10 μM. Retinal …
Sequential Reactions With Grubbs Catalyst And Ad-Mix-Alpha/Beta Using Pdms Thimbles, Martin T. Mwangi, Michael D. Schulz, Ned B. Bowden
Sequential Reactions With Grubbs Catalyst And Ad-Mix-Alpha/Beta Using Pdms Thimbles, Martin T. Mwangi, Michael D. Schulz, Ned B. Bowden
Martin M. Thuo
Incompatible Grubbs catalyst and an osmium dihydroxylation catalyst were site-isolated from each other using polydimethylsiloxane thimbles. The Grubbs catalyst was added to the interior of the thimbles, and AD-mix-alpha/beta was added to the exterior. Organic substrates readily fluxed through the walls of the thimbles and reacted with each catalyst. A series of cascade reactions were developed including those with intermediates possessing low boiling points or that were foul smelling.
Commodity Exports, Invisible Exports And Terms Of Trade For The Middle Colonies, 1720 To 1775, Peter Mancall, Joshua L. Rosenbloom, Thomas J. Weiss
Commodity Exports, Invisible Exports And Terms Of Trade For The Middle Colonies, 1720 To 1775, Peter Mancall, Joshua L. Rosenbloom, Thomas J. Weiss
Joshua L. Rosenbloom
Economic historians of the eighteenth-century British mainland North American colonies have given considerable weight to the role of exports as a stimulus for economic growth. Yet their analyses have been handicapped by reliance on one or two time series to serve as indicators of broader changes rather than considering the export sector as a whole. Here we present new comprehensive export measures for the middle colonies. We find that aggregate exports in constant prices grew very quickly, but barely faster than population during the period under consideration. Furthermore, improvements in the terms of trade increased the colonists’ ability to buy …
Improved Uses And Values For The Byproducts Of The Developing Biofuels Industry, Kurt A. Rosentrater
Improved Uses And Values For The Byproducts Of The Developing Biofuels Industry, Kurt A. Rosentrater
Kurt A. Rosentrater
No abstract provided.
Unforeseen Consequences Of Mothers’ Return To School On Children’S Education Aspirations And Outcomes, J. Jill Suitor, Mari Plikuhn, Megan Gilligan, Rebecca S. Powers
Unforeseen Consequences Of Mothers’ Return To School On Children’S Education Aspirations And Outcomes, J. Jill Suitor, Mari Plikuhn, Megan Gilligan, Rebecca S. Powers
Megan Gilligan
Parents' educational attainment is generally completed before offspring are born. Thus, there is little opportunity to study the ways in which children's observation of their parents' pursuit of education may augment the effects of structural factors on intergenerational transmission processes. In this article, the authors use qualitative and quantitative data collected from thirty-five women across a decade following their return to school to examine the effects of children's observations of their mothers' educational achievements on the children's educational aspirations and achievements in adulthood. The return to school was consequential only when mothers completed their degrees; when they did not, their …
Plan Your Future With Advance Directives Poster, Debra M. Sellers
Plan Your Future With Advance Directives Poster, Debra M. Sellers
Debra M. Sellers
Poster, three pages that define Living Will, Durable Power of Attorney for Health Care.
Sum Frequency Generation Vibrational Spectroscopy Of Pyridine Hydrogenation On Platinum Nanoparticles, Kaitlin M. Bratlie, Kyriakos Komvopoulos, Gabor A. Somorjai
Sum Frequency Generation Vibrational Spectroscopy Of Pyridine Hydrogenation On Platinum Nanoparticles, Kaitlin M. Bratlie, Kyriakos Komvopoulos, Gabor A. Somorjai
Kaitlin M. Bratlie
Pyridine hydrogenation in the presence of a surface monolayer consisting of cubic Pt nanoparticles stabilized by tetradecyltrimethylammonium bromide (TTAB) was investigated by sum frequency generation (SFG) vibrational spectroscopy using total internal reflection (TIR) geometry. TIR-SFG spectra analysis revealed that a pyridinium cation (C5H5NH+) forms during pyridine hydrogenation on the Pt nanoparticle surface, and the NH group in the C5H5NH+ cation becomes more hydrogen bound with the increase of the temperature. In addition, the surface coverage of the cation decreases with the increase of the temperature. An important contribution of this study is the in situ identification of reaction intermediates adsorbed …
Enantioselective Copper-Catalyzed 1,3-Dipolar Cycloadditions, Levi M. Stanley, Mukund P. Sibi
Enantioselective Copper-Catalyzed 1,3-Dipolar Cycloadditions, Levi M. Stanley, Mukund P. Sibi
Levi M. Stanley
The addition of a 1,3-dipole to an alkene or alkyne is a prominent transformation in organic synthesis.(1) Over the past two decades the intense study of enantioselective 1,3-dipolar cycloaddition methodologies has provided organic chemists with the tools necessary to synthesize a variety of chiral heterocycles in highly enantioenriched forms.(2) The majority of advances in this area are a direct result of studies focusing on chiral Lewis acid-catalyzed or chiral metal-mediated 1,3-dipolar cycloaddition methodologies. It is important to note that even though the many dipoles possess very strong donor atoms it is still possible to carry out enantioselective Lewis acid-catalyzed dipolar …
Assistive Technology Postcard, Debra M. Sellers, Erin J. Dittman
Assistive Technology Postcard, Debra M. Sellers, Erin J. Dittman
Debra M. Sellers
Postcard on assistive technology, tools to help make life easier, for people with arthritis, disabilities, etc.
Fashion An Easier Lifestyle With Assistive Technology: Leader's Guide, Debra M. Sellers, Erin J. Dittman
Fashion An Easier Lifestyle With Assistive Technology: Leader's Guide, Debra M. Sellers, Erin J. Dittman
Debra M. Sellers
Assistive technology is about tools to help make life easier, for people with arthritis, disabilities, etc. It helps with meals, housework, personal care, and other activities.
Fashion An Easier Lifestyle With Assistive Technology: Fact Sheet, Debra M. Sellers, Erin J. Dittman
Fashion An Easier Lifestyle With Assistive Technology: Fact Sheet, Debra M. Sellers, Erin J. Dittman
Debra M. Sellers
Assistive technology is about tools to help make life easier, for people with arthritis, disabilities, etc. It helps with meals, housework, personal care, and other activities.
On The Physical Properties Of Distillers Dried Grains With Solubles (Ddgs), Klein Ileleji, Kurt A. Rosentrater
On The Physical Properties Of Distillers Dried Grains With Solubles (Ddgs), Klein Ileleji, Kurt A. Rosentrater
Kurt A. Rosentrater
Distillers dried grains with solubles (DDGS) is a complex heterogeneous granular solid that exhibit a wide range of physical and chemical properties. This fact is one of the major reasons that livestock nutritionists often find it difficult to include it in their feed rations. The rapid growth of the corn ethanol industry, the primary generator of DDGS, has resulted in a huge influx of this product into the marketplace. Unfortunately, the lack of standard methods for product quality determination and reporting is becoming a bottleneck to expanding the market for this product. Challenges in the logistics of moving DDGS through …
Effect Of Moisture Content And Soluble Level On The Physical, Chemical, And Flow Properties Of Distillers Dried Grains With Solubles (Ddgs), Vykundeshwari Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater
Effect Of Moisture Content And Soluble Level On The Physical, Chemical, And Flow Properties Of Distillers Dried Grains With Solubles (Ddgs), Vykundeshwari Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater
Kurt A. Rosentrater
Distillers dried grains with solubles (DDGS) is a bulk material that has been widely used as a protein source for ruminants and nonruminants for more than two decades. DDGS is the nonfermentable processing residue (i.e., protein, fiber, fat, and ash) from fuel ethanol manufacturing. With the exponential growth of the fuel ethanol industry in the past several years, significant quantities (≈13.0 million tons in 2007) of distillers grains are now being produced. To effectively utilize these coproduct streams in the domestic market, DDGS must be transported greater distances and must be stored until final use. DDGS flow is often problematic …
Not Just Informative, But Necessary: Infusing Green And Sustainable Topics Into Engineering And Technology Curricula, Kurt A. Rosentrater, Elif Kongar
Not Just Informative, But Necessary: Infusing Green And Sustainable Topics Into Engineering And Technology Curricula, Kurt A. Rosentrater, Elif Kongar
Kurt A. Rosentrater
Generally accepted duties of engineers and technologists encompass designing and implementing solutions to problems. When so doing, it is their responsibility to be cognizant of the impacts of their designs on, and thus their accountability to, not only society in general, but also subsequent effects upon the environment. They need to be able to concurrently satisfy these competing needs, as well as constraints specific to the design challenges at hand. Responding to these requirements are the growing fields of green engineering and sustainable engineering. Both of these areas encompass many concepts, ideas, and tools, all of which are essential information …
The Biomass Bandwagon: Three Ideas For Engineering And Technology Programs To Get Onboard, Kurt A. Rosentrater, Jerry Visser
The Biomass Bandwagon: Three Ideas For Engineering And Technology Programs To Get Onboard, Kurt A. Rosentrater, Jerry Visser
Kurt A. Rosentrater
As society demands more energy and material goods, engineers and technologists will be relied upon to design and implement systems to produce and deliver these. There is growing interest in using renewable resources to produce fuels, chemicals, and finished products to meet these increasing needs. Additionally, popularity is gaining, both in research as well as industry, in developing and commercializing biobased products. Within this arena, there are tremendous opportunities for teaching innovations as well. To date, very limited discussions at ASEE regarding these potentials have occurred. The goal of this paper is to discuss possibilities for augmenting engineering and technology …
Music Training And Vocal Production Of Speech And Song, Elizabeth L. Stegemoller, Erika Skoe, Trent Nicol, Catherine M. Warrier, Nina Kraus
Music Training And Vocal Production Of Speech And Song, Elizabeth L. Stegemoller, Erika Skoe, Trent Nicol, Catherine M. Warrier, Nina Kraus
Elizabeth L. Stegemoller
Studying similarities and differences between speech and song provides an opportunity to examine music’s role in human culture.Forty participants divided into groups of musicians and nonmusicians spoke and sang lyrics to two familiar songs.The spectral structures of speech and song were analyzed using a sta- tistical analysis of frequency ratios.Results showed that speech and song have similar spectral structures,with song having more energy present at frequency ratios corresponding to those ratios associated with the 12-tone scale. This difference may be attributed to greater fun- damental frequency variability in speech,and was not affected by musical experience.Higher levels of musical experience were …
Synergism Between Entomopathogenic Nematodes And Bacillus Thuringiensis Crops: Integrating Biological Control And Resistance Management, Aaron J. Gassmann, S. Patricia Stock, Mark S. Sisterson, Yves Carriere, Bruce E. Tabashnik
Synergism Between Entomopathogenic Nematodes And Bacillus Thuringiensis Crops: Integrating Biological Control And Resistance Management, Aaron J. Gassmann, S. Patricia Stock, Mark S. Sisterson, Yves Carriere, Bruce E. Tabashnik
Aaron J. Gassmann
The past decade has witnessed a continual increase in the use of crops genetically modified to produce insecticidal toxins from the bacterium Bacillus thuringiensis (Bt). This presents the challenge of designing agricultural systems to manage pests and the evolution of resistance to Bt. We tested whether entomopathogenic nematodes might act synergistically with Bt crops by killing pests in non-Bt refuges and by increasing the fitness costs of resistance to Bt. We also tested whether insect mortality and fitness costs were affected by the cotton phytochemical gossypol. The entomopathogenic nematode Steinernema riobrave increased the fitness cost of Bt resistance, indicating that …
Engineering Education Societies Becoming Global: The Evolving Development Of The International Federation Of Engineering Education Societies (Ifees), Lueny Morell, Claudio Borri, Sarah A. Rajala, Bruno Laporte, Maira M. Larrondo Petrie, Seeram Ramakrishna, Xavier Fouger, Adriana Garboan, Jose Carlos Quadrado, Duncan Fraser, Hans Hoyer
Engineering Education Societies Becoming Global: The Evolving Development Of The International Federation Of Engineering Education Societies (Ifees), Lueny Morell, Claudio Borri, Sarah A. Rajala, Bruno Laporte, Maira M. Larrondo Petrie, Seeram Ramakrishna, Xavier Fouger, Adriana Garboan, Jose Carlos Quadrado, Duncan Fraser, Hans Hoyer
Sarah A. Rajala
Globalization is making both developed and developing countries think about effective and efficient strategies that will advance their economies and social development. Throughout the history of civilization, engineering has played a critical role in economic development. Engineers are key not only in solving local problems but also in knowledge creation and knowledge transfer. Thus, it is imperative that technical know-how be supplemented with professional skills to develop an ‘adaptive leader’ who is capable of addressing the multiple challenges of an ever changing world. The key-question posed by the 21st century global economy to engineering educators and stake-holders is this: “How …
Copper(Ii)-Catalyzed Exo And Enantioselective Cycloadditions Of Azomethine Imines, Mukund P. Sibi, Digamber Rane, Levi M. Stanley, Takahiro Soeta
Copper(Ii)-Catalyzed Exo And Enantioselective Cycloadditions Of Azomethine Imines, Mukund P. Sibi, Digamber Rane, Levi M. Stanley, Takahiro Soeta
Levi M. Stanley
A strategy for exo and enantioselective 1,3-dipolar cycloaddition of azomethine imines to 2-acryloyl-3-pyrazolidinone is described. The corresponding cycloadducts are isolated with high diastereoselectivities (up to >96:4 exo/endo) and enantioselectivities (up to 98% ee).