Iowa State University of Science and Technology, more commonly known as Iowa State University, Iowa State, or ISU, a Land grant of the Iowa university system, is a public land-grant and space-grant research university located in Ames, Iowa, United States. Until 1959 it was known as the Iowa State College of Agriculture and Mechanic Arts.Founded in 1858 and coeducational from its start, Iowa State became the nation’s first designated land-grant institution when the Iowa Legislature accepted the provisions of the 1862 Morrill Act on September 11, 1862, making Iowa the first state in the nation to do so. Iowa State's academic offerings are administered today through eight colleges, including the graduate college, that offer over 100 bachelor's degree programs, 112 master's degree programs, and 83 at the Ph.D. level, plus a professional degree program in Veterinary Medicine.ISU is classified as a Research University with very high research activity by the Carnegie Foundation for the Advancement of Teaching. The university is a group member of the prestigious American Association of Universities and the Universities Research Association, and a charter member of the Big 12 Conference. Wikipedia.
Iowa State University | Date: 2017-01-20
The present invention provides plant virus vectors developed from the Foxtail mosaic virus (FoMV). The vectors include a nucleic acid sequence encoding an infectious Foxtail mosaic virus (FoMV) with a functional movement encoding sequence operably linked to one or more regulatory elements functional in a plant. The plant virus vectors may be used to infect monocot plants, such as maize and can be used for VIGS, gene editing, gene expression or other transgenic protocols.
Battelle, Iowa State University and Lawrence Livermore National Laboratory | Date: 2017-01-25
A bulk high performance permanent magnet comprising a neodymium-iron-boron core having an outer surface, and a coercivity-enhancing element residing on at least a portion of said outer surface, with an interior portion of said neodymium-iron-boron core not having said coercivity-enhancing element therein. Also described herein is a method for producing the high-coercivity bulk permanent magnet, the method comprising: (i) depositing a coercivity-enhancing element on at least a portion of an outer surface of a neodymium-iron-boron core substrate to form a coated permanent magnet; and (ii) subjecting the coated permanent magnet to a pulse thermal process that heats said outer surface to a substantially higher temperature than an interior portion of said neodymium-iron-boron core substrate, wherein said substantially higher temperature is at least 200 C. higher than said interior portion and is of sufficient magnitude to induce diffusion of said coercivity-enhancing element below said outer surface but outside of said interior portion.
Iowa State University and Archer Daniels Midland Co. | Date: 2017-07-05
The present invention relates to a method of producing an improved asphalt. The method involves providing an asphalt and providing a compound of formula (I), as described herein. The asphalt is mixed with the compound of formula (I) under conditions effective to produce an improved asphalt. Also disclosed are an asphalt product and a method of making asphalt material. The invention further discloses a method of producing an improved asphalt comprising providing a polymer modified asphalt and providing a compound of formula (IIa) or formula (II). The polymer modified asphalt is mixed with the compound of formula (Ila) or formula (IIb) under conditions effective to produce an improved asphalt, which is yet another aspect of the present invention.
Iowa State University | Date: 2017-04-14
The present invention relates to a thermoplastic block copolymer comprising at least one PA block and at least one PB block. The PA block represents a polymer block comprising one or more units of monomer A, and the PB block represents a polymer block comprising one or more units of monomer B. Monomer A is a vinyl, acrylic, diolefin, nitrile, dinitrile, acrylonitrile monomer, a monomer with reactive functionality, or a crosslinking monomer. Monomer B is a radically polymerizable triglyceride or mixtures thereof, typically in the form of a plant or animal oil. The present invention also relates to a method of preparing a thermoplastic block copolymer or novel thermoplastic statistical copolymers by polymerizing a radically polymerizable monomer with a radically polymerizable triglyceride or mixtures thereof via reversible addition-fragmentation chain-transfer polymerization (RAFT), in the presence of an free radical initiator and a chain transfer agent.
Iowa State University | Date: 2017-04-28
The present invention relates to tackifier compounds and methods of using the same. In various embodiments, the present invention provides a tackifier compound including independently substituted or unsubstituted fused rings A and B each independently chosen from (C_(5)-C_(10))cycloalkyl and (C_(2)-C_(10))heterocyclyl. Fused ring A is substituted with (R^(1))_(1-8 )and fused ring B is substituted with (OC(O)RC(O)R^(2))_(1-8). At each occurrence R is independently chosen from (C_(2)-C_(10))alkanylene, (C_(2)-C_(10))alkenylene, (C_(2)-C_(10))alkynylene, (C_(5)-C_(20)(arylene), and (C_(1)-C_(20))heteroarylene, wherein R is unsubstituted or substituted. At each occurrence R is independently selected from OH, OR^(3), and OC(O)RC(O)R^(2). At each occurrence R^(2 )is independently chosen from OH, OR^(3), NH_(2), NHR^(3), and NR^(3)_(2). At each occurrence R^(3 )is independently chosen from (C_(1)-C_(10))alkanyl, (C_(2)-C_(10))alkenyl, (C_(2)-C_(10))alkynyl, C_(5)-C_(20)(aryl), and (C_(1)-C_(20))heteroaryl, wherein R^(3 )is unsubstituted or substituted.
Iowa State University | Date: 2016-10-27
The present invention is directed to polyisocyanates and polyurethanes derived therefrom. In various embodiments, the present invention provides polyisocyanates, methods of making the polyisocyanates from fused bicyclic alcohols, polyurethanes, and methods of making the polyurethanes from the polyisocyanates.
Iowa State University | Date: 2016-09-29
To better control part quality of 3D printed parts, the temperature of an extruder filament using a secondary heat source is provided. A heat source, such as an infrared heat source, can be used to heat the filament of a 3D printer to the optimum temperature that will enhance welding of the filament to a substrate that it is being printed on or to. Such an optimum temperature can be based upon, in part, the temperature of the substrate. A controller or other intelligent control can be used to receive temperature readings of the substrate and/or filament and then can adjust the temperature of the heating source to optimize the temperature of the filament to better combine the filament to the substrate.
Iowa State University | Date: 2017-03-29
The present invention relates to a thermoplastic copolymer, block copolymer, and statistical copolymer comprising plural acrylated polyol monomeric units having different degrees of acrylation of hydroxyl groups. The acrylated polyol monomeric units have an average degree of acrylation greater than 1 and less than the number of the hydroxyl groups of the polyol. The present invention also relates to a method of making the thermoplastic copolymer, block copolymer, and statistical copolymer, and using them in various applications, such as asphalt rubber modifiers, adhesives, or an additive in a tracking fluid for oil tracking.
Howell S.H.,Iowa State University
Annual Review of Plant Biology | Year: 2013
Endoplasmic reticulum (ER) stress is of considerable interest to plant biologists because it occurs in plants subjected to adverse environmental conditions. ER stress responses mitigate the damage caused by stress and confer levels of stress tolerance to plants. ER stress is activated by misfolded proteins that accumulate in the ER under adverse environmental conditions. Under these conditions, the demand for protein folding exceeds the capacity of the system, which sets off the unfolded protein response (UPR). Two arms of the UPR signaling pathway have been described in plants: one that involves two ER membrane-associated transcription factors (bZIP17 and bZIP28) and another that involves a dual protein kinase (RNA-splicing factor IRE1) and its target RNA (bZIP60). Under mild or short-term stress conditions, signaling from IRE1 activates autophagy, a cell survival response. But under severe or chronic stress conditions, ER stress can lead to cell death. © Copyright ©2013 by Annual Reviews. All rights reserved.
Johnston D.C.,Iowa State University
Advances in Physics | Year: 2010
The response of the worldwide scientific community to the discovery in 2008 of superconductivity at Tc = 26 K in the Fe-based compound LaFeAsO1-xFx has been very enthusiastic. In short order, other Fe-based superconductors with the same or related crystal structures were discovered with Tc up to 56 K. Many experiments were carried out and theories formulated to try to understand the basic properties of these new materials and the mechanism for Tc. In this selective critical review of the experimental literature, we distill some of this extensive body of work, and discuss relationships between different types of experiments on these materials with reference to theoretical concepts and models. The experimental normal-state properties are emphasized, and within these the electronic and magnetic properties because of the likelihood of an electronic/magnetic mechanism for superconductivity in these materials. © 2010 Taylor & Francis.