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-
- Description:
- Germanium (Ge) nanowires were grown via the vapor-liquid-solid growth mechanism and surface-doped with manganese (Mn). The nanowires were annealed at 350˚ C for 30 min to promote the Mn diffusion. Pulsed-laser local electrode atom probe tomography was used to determine the concentration and distribution of Mn in the Ge nanowires....
- Keyword:
- Volume 5
- Creator:
- Lincoln Lauhon, Jessica Lensch-Falk, and James Riley
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- Silver nanoparticles exhibit distinctive optical properties. When exposed to electromagnetic radiation, a noble metal nanoparticle demonstrates the unique optical property of localized surface plasmon resonance (LSPR). LSPR is measured through an extinction spectrum, the sum of absorption and Rayleigh scattering, which results when the collective oscillation of electrons is resonant...
- Keyword:
- Volume 5
- Creator:
- David No, Richard Van Duyne, and Julia Bingham
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- When the Aß peptides aggregate into soluble oligomeric clusters, they form central nervous system neurotoxins known as amyloid-ß-derived diffusible ligands (ADDLs). The assembly of ADDLs is currently thought to be a pathogenic process in Alzheimer's disease (AD). Understanding the molecular structure and properties of ADDLs could prove useful in the...
- Keyword:
- Volume 5
- Creator:
- William L. Klein, Sarah Kate Rapoport, and Mary P. Lambert
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- Numerous studies have been structured to investigate magnetoelectric multiferroic materials, which possess simultaneous ferroelectric and (anti)ferromagnetic ordering. Bismuth ferrite (BiFeO3), referred to as BFO, has drawn special attention because of its unique ability to maintain both electric and magnetic dipole moments at room temperature. BFO shows great potential to revolutionize...
- Keyword:
- Volume 5
- Creator:
- Michael Bedzyk, Brian Mikolajczyk, and Jeffrey Klug
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- A self-assembled monolayer of an alkene or alkyne can be applied to a hydrogenpassivated silicon surface using UV hydrosilylation. This research shows that field-induced oxides can be used as a negative resist to selectively prevent bromostyrene attachment, providing a means of nanopatterning organic molecules on silicon. The negative resist effects...
- Keyword:
- Volume 5
- Creator:
- Christopher Liman
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- Pressure-assisted densification was used by way of a hot press to optimize the conditions of heat and pressure when applied to anatase (TiO2). This study optimized hot-pressing conditions, which will be helpful when doping TiO2 because it will allow optimization of bulk anatase for transparent conductive oxide (TCO) applications. Lessons...
- Keyword:
- Volume 5
- Creator:
- E. Mitchell Hopper, Thomas O. Mason, and Takesha Leavell
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- Magnetic tweezers are a simple yet powerful tool for the micromanipulation of single molecules. In this study, a vertical magnetic tweezer apparatus was constructed for research on the micromechanics of DNA, DNA supercoiling, and DNA-protein interactions. By joining DNA molecules to magnetic beads and attaching these tethers to the wall...
- Keyword:
- Volume 5
- Creator:
- John Graham, James Kath, and John Marko
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- This research explored the optical properties of metal nanoparticles using the discrete dipole approximation (DDA). A method was developed to define nanoparticle structures of arbitrary shapes, and this method was interfaced with the preexisting DDA code, DDSCAT 6.1. For each structure and material, the scattering properties and near electric-field enhancements...
- Keyword:
- Volume 5
- Creator:
- George C. Schatz, Benjamin J. Faber, and Jon P. Camden
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- This paper reports the synthesis of an azide-functionalized deoxynucleoside as a precursor for azide-terminated oligonucleotides. Also reported is the synthesis of an acetylene-terminated precursor, which can be used to make a diverse array of silyl-protected acetylene-terminated small molecule cores. Both of these precursors serve as basic building blocks en route...
- Keyword:
- Volume 5
- Creator:
- Emily Mirkin
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- The need for high-performance, solid-state H2 gas sensors is one research effort aimed at enabling the future hydrogen economy. Improving the gas-sensing properties of semiconducting oxide materials such as tin oxide, zinc oxide, etc., necessitates the control microstructure and composition. This study compares the effect of dimensionality with the effect...
- Keyword:
- Volume 5
- Creator:
- Vinayak Dravid, Zixiao Pan, Suresh Donthu, and Ken D'Aquila
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- Magnetic resonance imaging (MRI) is a powerful technique used in clinical medicine and biomedical research to conduct noninvasive imaging of tissues and organisms. Chelated gadolinium is often used as an MRI contrast agent to improve the spatial resolution of these images. Recently developed “smart” MRI contrast agents respond to specific...
- Keyword:
- Volume 5
- Creator:
- Thomas Meade, Rene Boiteau, and Jody Major
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- This research illustrates the modification of an iodostyrene layer on a Si(111) surface using a Sonogashira reaction. This was accomplished by applying UV irradiation (254 nm) to a hydrogen-passivated silicon surface in a solution of iodostyrene in benzene, followed by a Sonogashira coupling between the iodine group from iodostyrene and...
- Keyword:
- Volume 5
- Creator:
- Jun-Hyun Kim, Amanda Boe, and SonBinh T. Nguyen
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- This research investigated the feasibility of patterning with sol-gels using a nanofountain probe in an atomic force microscope. Two oxide sols — barium titanate and cobalt ferrite — were used as inks in patterning tests using fountain-pen nanolithography (FPN). This was shown to be a suitable method of depositing sol-gels...
- Keyword:
- Volume 5
- Creator:
- Eduardo Aramayo, Horacio D. Espinosa, and Andrea Ho
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/19/2018
- Date Modified:
- 07/19/2018
- Date Created:
- 2008
- Resource Type:
- Article
-
- Description:
- In this study, particle sorting and transportation in Brownian liquids were explored by translating an optical standing wave. The standing wave is produced by crossing two coherent beams of light, and determining the resulting period by the angle of the intersection. Adjusting the period and velocity of wave ridges allows...
- Keyword:
- Volume 4
- Creator:
- Paul West, Weiqiang Mu, and J.B.Ketterson
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Carbon nanotubes (CNTs) are highly promising in the miniaturization of electronic devices. However, there are currently many limitations in mass producing devices that involve the application of CNTs, one of which is the ability to physically pattern CNTs in specific locations on a wafer, which is what this study aims...
- Keyword:
- Volume 4
- Creator:
- Pooja Shaw
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Weak, noncovalent interactions (dipoledipole interactions, hydrogen bonding, and Van der Waals forces) in ligand-receptor pairs play a very important role in living systems. A new way to study these interactions is by using electron transfer theory. The rate of electron transfer between redox centers is dependent on several factors, including...
- Keyword:
- Volume 4
- Creator:
- Tracy Ooi, Thomas Meade, and Amanda Eckermann
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Weak, noncovalent interactions (dipoledipole interactions, hydrogen bonding, and Van der Waals forces) in ligand-receptor pairs play a very important role in living systems. A new way to study these interactions is by using electron transfer theory. The rate of electron transfer between redox centers is dependent on several factors, including...
- Keyword:
- Volume 4
- Creator:
- Amanda Eckermann, Thomas Meade, and Tracy Ooi
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Antibiotin was labeled with colloidal Au nanoparticles as a method of amplifying the localized surface plasmon resonance (LSPR) extinction maximum shift. This shift allows for the monitoring of binding events on the surface of nanosphere nithography (NSL) fabricated silver nanoparticles. A shift of +2.9 nm was observed for the colloidal...
- Keyword:
- Volume 4
- Creator:
- Salome Njeri Ngatia
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Magnetic nanostructures are of great interest as platforms for medical applications, including biomedical imaging and targeted cancer therapy. However, current magnetic nanostructures are limited by magnetic strength and insufficient biocompatibility. In this research project, significant progress was made to address these confines, including 1) increasing magnetic responsiveness by replacing the...
- Keyword:
- Volume 4
- Creator:
- Mohammed Aslam, Jagannath Sam Nayak, and Vinayak Dravid
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Amyloid-β oligomers, also known as amyloid-β derived diffusible ligands (ADDLs), have been implicated in numerous studies as being a possible cause for Alzheimer’s disease (AD). The goal of this study was to investigate the kinetics of the oligomerization of the monomer amyloid-β (Aβ) into ADDLs in various ratios of dimethyl...
- Keyword:
- Volume 4
- Creator:
- Allison Meisner, William L. Klein, and Mary P. Lambert
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Surface patterns, formed by the coassembly of cationic-anionic amphiphiles into cylindrical micelles, were analyzed. The competition between electrostatic forces and the net incompatibility χ arising from the different chemical natures of those oppositely charged amphiphiles resulted in the formation of segregated domains. These surface domains are not macroscopically segregated due...
- Keyword:
- Volume 4
- Creator:
- Marc Michael D. Lim, Yury S. Velichko, Graziano Vernizzi, and Monica Olvera de la Cruz
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- The purpose of this study is to characterize the nanometer-scale structure of an Al2O3- W-Ge multilayer utilizing x-ray reflectivity. Attributes such as layer thickness, density, surface, and interface roughness are determined and explained. The reasons for using this particular multilayer are also reviewed, as well as the benefits to science...
- Keyword:
- Volume 4
- Creator:
- Michael Bedzyk, Phillip Lin, and Michael Larkin
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- In this work, computational electrodynamics is used to calculate extinction, scattering, and local electric fields around the transition metal nanoparticles. Rhodium and ruthenium exhibit plasmon peak shifts as a function of local refractive index comparable to particles of silver and gold.1,2 In addition, the local fields calculated indicate that Rh...
- Keyword:
- Volume 4
- Creator:
- George Schatz, Matthew Johnson, and Jon Camden
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- There is a continuing need for patterning multifunctional materials to harness their features and explore synergy among diverse properties and phenomena. Soft lithography, among various patterning techniques, is a versatile method that can generate inorganic patterns in a parallel mode. Experimentation was performed making use of flexible soft lithography to...
- Keyword:
- Volume 4
- Creator:
- Jesse Hall III, Zixiao Pan, and Vinayak P. Dravid
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Carbon nanotubes have been shown to behave as very effective conductors and semiconductors, but their electronic uses are limited by how well metallic and semiconducting nanotubes can be sorted. Recent investigations have shown an effective method of separating laser ablation–produced carbon nanotubes by electronic type. However, laser ablation nanotubes are...
- Keyword:
- Volume 4
- Creator:
- Alexander Green, Mark Hersam, and Xiaofeng Du
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Second harmonic generation (SHG), a nonlinear optical tool, was used to characterize DNA bound through a chemical linker to the flat surface of a hemispherical lens. Contact angle measurements were used to guarantee that the chemical linker did not hydrolyze under experimental conditions. SHG experiments followed the effects of salt...
- Keyword:
- 2007
- Creator:
- Franz M. Geiger, Faith C. Boman, and Allison G. Condie
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Two-phase multiferroic nanostructures have the potential to display magnetoelectricity (ME) through interphase mechanical coupling. Nanoscale ME-based technology may lead to the next generation of computer memory. In this research, soft electron beam lithography (soft-eBL) was used to fabricate submicron-sized structures of cobalt ferrite (magnetostrictive) and barium titanate (piezoelectric) as bottom...
- Keyword:
- Volume 4
- Creator:
- Vinayak Dravid, Zixiao Pan, and Ken D'Aquila
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- Oligonucleotide-functionalized gold nanoparticles (DNA-Au NPs) find ubiquitous use in various biomolecular detection schemes due to their unique chemical and physical properties. This study investigates the effects of nanoparticle size and concentration of salt in solution on the DNA loading of the Au NP surface. The DNA loading studies are performed...
- Keyword:
- Volume 4
- Creator:
- Jae-Seung Lee, Angel S. Butron, Brian Stepp, SonBinh Nguyen, Savka I. Stoeva, and Chad A. Mirkin
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/18/2018
- Date Modified:
- 07/18/2018
- Date Created:
- 2007
- Resource Type:
- Article
-
- Description:
- The effects of volumetric size-control techniques on the photoinduced conversion of silver colloids to triangular nanoprisms were examined. It was hoped that through the application of size-control techniques on photocatalyzed reactions, a new method of controlling particle dimensions could be established. Initial work focused on optimizing the synthesis procedure in...
- Keyword:
- Volume 3
- Creator:
- Jeff Wille, Teri Odom, and Jeremy Barton
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- The use of a variable resistor-capacitor (RC) bridge circuit was previously reported to be a viable solution to the spurious contribution of fringe capacitance during nanoscale impedance microscopy (NIM). In this paper, a refinement of this technique combined with standard NIM is presented as an impedance characterization tool for organic...
- Keyword:
- Volume 3
- Creator:
- Mark C. Hersam, Liam S. Pingree, and Zhiyang Wei
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- The need to improve sensing technology for widespread application in everyday life is fueling the development of diffraction-based sensing, an optical sensing technique. Selectivity and sensitivity issues must first be resolved. Both selectivity and sensitivity can be increased by using resonance conditions — that is, using a probe wavelength where...
- Keyword:
- Volume 3
- Creator:
- Jennifer Roden, Mohammed Parpia, and Joseph T. Hupp
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- Many studies have focused on harnessing the extraordinary optical properties of noble metal nanoparticles for the development of biological and chemical nanosensors. Metallic nanoparticles emulate surface roughness, facilitating the coupling of light to surface plasmon polaritons. The excitation of the plasmons enhances the electromagnetic field near the surface so that...
- Keyword:
- Volume 3
- Creator:
- Chanda Ranjit Yonzon, Richard P. Van Duyne, and Heyjin Park
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- The aim of this research was to investigate the use of atomic force microscopy (AFM) for the high-resolution imaging of collagen fibers in aqueous media. Collagen plays a vital role in many processes in vivo, especially in structural integrity, yet few studies have used AFM to investigate the structure of...
- Keyword:
- Volume 3
- Creator:
- Horacio Espinosa, Yoshiro Fukui, Keun-Ho Kim, and Isabel Nocedal
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- This project involved the study of Brownian motion of polystyrene microspheres in the presence of gravity and a one-dimensional sinusoidal optical potential generated by the interference of two laser beams. An exponential relationship was observed between applied laser power and particle residence time of individual interference fringes. Increasing laser power...
- Keyword:
- Volume 3
- Creator:
- Weiqiang Mu, John B. Ketterson, and Aaron Midkiff
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- In this study, ligands modified to contain a metal ion were synthesized and their electrochemical properties were examined alone and in the presence of a protein. We chose to use avidin and biotin as a model system. Probes have been developed in which biotin is modified to coordinate to a...
- Keyword:
- Volume 3
- Creator:
- Thomas J. Meade, Amanda L. Eckermann, and Charlotte A. Mason
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- This work exploits the use of noble metal nanoparticles to achieve sensitive and selective detection of chemical and biological analytes. The localized surface plasmon resonance (LSPR) of these metal nanoparticles is known to be sensitive to shape, size, and the local environment. Ag nanoparticles fabricated using the nanosphere lithography (NSL)...
- Keyword:
- Volume 3
- Creator:
- Chanda Ranjit Yonzon, Richard P. Van Duyne, Jessica A. Huber, and Erin McLellan Hicks
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- In this experiment, the optical properties of several spherical nanoparticles were observed. Particles were modeled using Mie theory, a set of equations that calculate the extinction coefficient of virtually any spherical particle. Initially this theory was used to model solid particles made of noble metals. As time passed, its scope...
- Keyword:
- Volume 3
- Creator:
- John Flintermann, Kevin Shuford, and George Schatz
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- Weak interactions in ligand-receptor pairs are important in biological systems. However, the energetics of these interactions are often difficult to quantify for ligandreceptor pairs. Weak interactions are a part of reorganization energy, which plays a role in electron transfer reactions. Under certain conditions the rate of electron transfer can be...
- Keyword:
- Volume 3
- Creator:
- Thomas J. Meade, Daniel J. Feld, Amanda L. Eckermann, and Kylie D. Barker
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- The bio-barcode assay is a nanotechnology-based method for capturing and detecting proteins. It shows extraordinary sensitivity in detecting certain antigens at extremely low concentrations, now without the use of the polymerase chain reaction (PCR). This assay uses disease identification biomarkers that cannot be used in the conventional assays of today....
- Keyword:
- Volume 3
- Creator:
- David Andrew Davis, William Klein, and Lei Chang
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- This report describes the development of bioorganic small-molecule complexes for the directed assembly of functional nanomaterials. In particular, it examines the synthesis of small acetylene-based organic precursors for attaching DNA to form DNA/organic hybrids. This work continues previous studies demonstrating how DNA/polymer hybrid composites have sharper melting points than DNA...
- Keyword:
- Volume 3
- Creator:
- Omar Abdullah, Brian Stepp, and SonBinh Nguyen
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/17/2018
- Date Modified:
- 07/17/2018
- Date Created:
- 2006
- Resource Type:
- Article
-
- Description:
- The intention of this research was to investigate the ink diffusion that takes place in dip-pen nanolithography in order to better understand how to enhance the possibilities of nano fountain probes. Varying concentrations of 16-mercaptohexadecanoic acid in ethanol were used as ink in dip-pen nanolithography, and the relationships between contact...
- Keyword:
- Volume 2
- Creator:
- Horacio Espinosa, Keun-Ho Kim, and Isabel Nocedal
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- Monolayers on H-Si(111) were formed thermally using decene and 10-bromodecene. Samples were subjected to 100 percent humidity in order to induce oxidation for upwards of three weeks. The ability of bromine to bind to the Si(111) and inhibit oxidation through steric hindrance was intended to be analyzed. Atomic force microscopy...
- Keyword:
- Volume 2
- Creator:
- Michael Bedzyk, Brian Honeyman, C. Reagan Kinser, Hua Jin, and Mark Hersam
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- In this study liquid-phase nanolithography (LPN) techniques using conductive atomic force microscopy are investigated in order to study properties of nano-patterned organic molecules covalently bound to a silicon substrate. Previous work has shown that LPN in the inert organic solvent hexadecane forms patterned features on hydrogen-passivated Si(111). Due to hexadecane’s...
- Keyword:
- Volume 2
- Creator:
- Matthew J. Schmitz, C. Reagan Kinser, and Mark Hersam
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- The purpose of this study was to select an alloy with a low driving force for nucleation for a more in-depth study of the nucleation of γ’-precipitates. To do this, three Ni-Cr-Al alloys were chosen close to the solvus line of a Ni-Cr-Al phase diagram, ensuring low supersaturation and therefore...
- Keyword:
- Volume 2
- Creator:
- Kevin Yoon, Brent Carey, and David Seidman
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- In this study attention was focused on a templated fabrication of Au nanotubular structures that could carry a highly magnetic entity such as cobalt. In brief, experimentation was performed to create Co@Au core-shell nanorods of different lengths. The preliminary core-shell structures were first characterized using x-ray diffraction (XRD), scanning electron...
- Keyword:
- Volume 2
- Creator:
- Mohammed Aslam, Jesse Hall III, and Vinayak P. Dravid
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- This project focused on the growth of Cu2O nanocubes in microwells from nanoparticle “seeds.” The seeds were first formed by the reduction of copper sulfate with ascorbic acid in the presence of the surfactant poly(ethylene glycol) (PEG). Upon reaction within the microwell, the seed solution formed a larger single crystal....
- Keyword:
- Volume 2
- Creator:
- Christopher L. Stender, Jennifer Y. Wang, Jeremy E. Barton, and Teri W. Odom
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Resource Type:
- Article
-
- Description:
- The performance of mixed-phase TiO2 was observed in an effort to test its practical use as a semiconductor photocatalyst. Synthesis of mixed-phase TiO2, characterization using xray diffraction analysis, monitoring testing using the gas chromatography-FID, and testing gas phase reactor were four techniques used in this research to evaluate mixedphase TiO2....
- Keyword:
- Volume 2
- Creator:
- Joy Chen, Deanna Hurum, Faith Dukes, and Kimberly Gray
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- Chemical vapor deposition was used to synthesize CdS nanowires via the vaporliquid-solid growth mechanism. After Ti/Au contacts were patterned to the nanowires using electron beam lithography, photoresponse studies were conducted. A significant response was observed when the wires were exposed to visible light; this occurred as electrons in the nanowires...
- Keyword:
- Volume 2
- Creator:
- Lincoln Lauhon, Jonathan Allen, and Jonathon Milam
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- This paper explores the various approaches to time-resolved single nanoparticle spectroscopy. Due to the novelty of these types of experiments, several difficulties arise in creating a feasible physical setup capable of imaging single nanoparticles less than 100 nm in size. The various difficulties in setup and their attempted resolutions will...
- Keyword:
- Volume 2
- Creator:
- Greg Hartland, W. Paige Hall, Richard Van Duyne, and Hristina Petrova
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- The optical properties of spherical gold nanoparticles are calculated using classical electrodynamics. The wavelength corresponding to maximum extinction shifts to longer wavelengths as the size of the nanoparticle is increased. The influence of higher-order multipoles is evident for large nanoparticles, making the spectra more complex. When the shell thickness of...
- Keyword:
- Volume 2
- Creator:
- Cleveland Eugene Rayford II, Kevin Shuford, and George Schatz
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- Every year millions of Americans go to the emergency room with symptoms of a heart attack. More than half a million Americans die each year of myocardial infarctions (MI) caused by coronary heart disease (CHD). CHD detection is currently limited to EKG analyses of electrical signals generated by the heart...
- Keyword:
- Volume 2
- Creator:
- Chad Mirkin, Dimitra Georganopoulou, and Ada Lee
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- Alzheimer’s disease (AD) is a progressive mental disorder that affects 23 million people worldwide. It is pathologically characterized by amyloid plaques and tau tangles that form in the brain. The hard, insoluble amyloid plaques develop from the naturally secreted amyloid beta peptide, which can also assemble into toxic oligomeric forms...
- Keyword:
- Volume 2
- Creator:
- Sadiya Kahn
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- Electron transfer theory predicts reorganization energy to be one factor that determines the electrochemical potential of a metal ion. This paper describes part of a study that aims to increase understanding of solvent reorganization energy in noncovalent systems by systematically varying the environment around a metal ion, specifically ruthenium. The...
- Keyword:
- Volume 2
- Creator:
- Thomas J. Meade, Amanda L. Eckermann, and Charlotte A. Mason
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/16/2018
- Date Modified:
- 07/16/2018
- Date Created:
- 2005
- Resource Type:
- Article
-
- Description:
- This study investigated the precipitation strengthening of the binary Al-0.14wt% Sc, 0.16% Ti alloy system. Ingots of Al-2.1wt% Sc and Al-4.68wt% Ti were melted together, and the nucleation, growth, and coarsening of precipitates were analyzed. The microstructural evolution of the nanoscale L12 precipitates phase was examined with Vickers microhardness testing,...
- Keyword:
- Volume 1
- Creator:
- Marsha Van Dalen, Arkadiusz Stachurski, Richard Karnesky, and David Seidman
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- The effects of Ru, W, and Re on the temporal evolution of the gamma prime precipitates in a Ni-Cr-Al alloy were investigated by threedimensional atom probe (3DAP) microscopy. The spatial distribution of the gamma prime precipitates in a model Ni-8.5Cr-10Al alloy was investigated using atomic force microscopy (AFM). We reported...
- Keyword:
- Volume 1
- Creator:
- Dieter Isheim, Luis de la Cruz, Chantal Sudbrack, and David Seidman
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- Fullerene and inorganic fullerene-like nanotubes are molecules with the unique geometry of a single layer or multiple layers of a bulk material oriented in a tube. These molecules have novel mechanical properties and great potential in experimental systems for nanotechnology and nanodevices. The threedimensional atom-probe (3DAP) microscope is an atomic...
- Keyword:
- Volume 1
- Creator:
- Brian Pasquini and David Seidman
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- While nanoscale device prototypes using carbon nanotubes abound, no mass production-scale technique exists for examining properties of a batch of nanotubes. Dielectrophoresis, on the other hand, has received much attention in the press as a method of separating and trapping particles. In this research, a method of developing mass production-scale...
- Keyword:
- Volume 1
- Creator:
- Horacio Espinosa, Nicolaie Moldovan, and Matthew Pappas
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- Chemists and physicists have been interested in the optical properties of metal nanoparticles since the time of Michael Faraday.1 New approximation techniques for different sizes and geometries have created renewed interest in and investigation of these particles. Many different arrays of particle extinctions of various shapes and sizes have been...
- Keyword:
- Volume 1
- Creator:
- Anne Hawkinson, Shengli Zou, and George Schatz
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- In modern medicine, physicians destroy otherwise healthy tissues in patients’ bodies because of the lack of site-target specificity and sensitivity in detecting and attacking cancerous cells. Many cancer patients are left with the difficult task of weighing the benefits against the harm of undergoing current cancer treatments. Members of the...
- Keyword:
- Volume 1
- Creator:
- Vinayak Dravid, Lei Fu, Darrius Guiden, and Ming Su
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- The effects of 13 nm Au colloid and 10 nm Ag colloid on the growth of the yeast species Saccharomyces cerevisiae were compared to control samples cultured in a growth media of yeast extract, bacto peptone, and dextrose (YPD) to determine the toxicity of nanoparticles. Growth curves were generated for...
- Keyword:
- Volume 1
- Creator:
- Desma N. Mitchell, Elizabeth Claudio, and Hilary Arnold Godwin
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- Transmission and reflection diffraction gratings were fabricated by micropatterning polymers on transparent substrates and drop-coating polymers onto etched silicon wafers. Exposure of these gratings to three nerve toxin mimics at very low concentrations resulted in mimic sorption by the polymers, changing the polymer’s refractive index. As a result, the grating’s...
- Keyword:
- Volume 1
- Creator:
- Louisa Carr, Ryan Bailey, and Joseph Hupp
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- Feedback-controlled lithography (FCL) enables atomically precise patterning of individual molecules on the technologically significant Si(100)-2 x 1:H surface. However, because it is performed in an ultrahigh vacuum (UHV) environment, FCL has thus far been restricted to surface chemistries that can be delivered in the gas phase. The present research attempts...
- Keyword:
- Volume 1
- Creator:
- Andrew Baluch, Rajiv Basu, Nathan Guisinger, and Mark C. Hersam
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- This research project explores two different processes that can be used to pattern organic molecules on silicon. In the first process, hydrogen-terminated silicon surfaces were anodized in nanometer scale with a contact-mode atomic force microscope (AFM). Anodization was done by applying a positive bias voltage to the surface with respect...
- Keyword:
- Volume 1
- Creator:
- Donald Kramer, Mark C. Hersam, and Stephen Akuamoah
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- Recent research suggests that ultraviolet illumination is essential for the creation of monolayers of Undecylenic Acid Methyl Ester (UDAME), as it is believed that the UV illumination initiates the radical-chain polymerization. Samples created without UV illumination, however, also show signs of a monolayer. In this study, samples were analyzed using...
- Keyword:
- Volume 1
- Creator:
- Michael Bedzyk, Hua Jin, and Christian K. Valley
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- The development and applications of organic/DNA molecules for the use of DNA detection systems are reported here. In particular, two different hybrids are synthesized: DNA/polymer hybrids and small-molecule DNA hybrids. DNA/polymer hybrids are especially useful considering that their functionality may be varied according to the polymer selected. The hybrids are...
- Keyword:
- Volume 1
- Creator:
- Julianne Gibbs, SonBinh T. Nguyen, Jonathan R. Davila, and Christine Dettmer
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Description:
- Several phosphonate-functionalized molecular squares have been successfully synthesized, and the fabrication of multilayer films on both conductive and semiconducting platforms has been demonstrated. These films were grown using the well-documented zirconium phosphonate multilayer method. The layer-by-layer growth rate is uniform. Experiments suggest, however, that the molecular squares adopt a semi-collapsed...
- Keyword:
- Volume 1
- Creator:
- SonBinh T. Nguyen, Craig P. Schwartz, and Richard W. Gurney
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 07/12/2018
- Date Modified:
- 07/12/2018
- Date Created:
- 2004
- Resource Type:
- Article
-
- Keyword:
- Al-Punch
- Creator:
- David Boyk
- Owner:
- David Boyk
- Publisher:
- Duke University Press
- Location:
- Patna
- Language:
- English
- Date Uploaded:
- 06/19/2018
- Date Modified:
- 06/19/2018
- Date Created:
- 2018-05-01
- Resource Type:
- Article
- Alternate Identifier:
- DOI 10.1215/1089201x-4390003
-
- Description:
- Most people imagine hacking to be an exceedingly complex crime, requiring an understanding of computing systems that goes far beyond that of average, functionally literate PC users. While there are sophisticated hacking techniques which do fit this description, many forms of hacking require little more than the ability to install...
- Keyword:
- volume 1
- Creator:
- Jose Trejos and Max Rowe
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/23/2018
- Date Modified:
- 04/23/2018
- Date Created:
- 2017-06-01
- Resource Type:
- Article
-
- Description:
- In February, British Prime Minister David Cameron announced that Britain would vote on the continuation of their membership within the EU. This has led to ministers quickly splitting into factions either in support or opposition to British exit from the EU, now often referred to as “Brexit”. Positions have been...
- Keyword:
- volume 1
- Creator:
- Sophie Chen and Jose Trejos
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/23/2018
- Date Modified:
- 04/23/2018
- Date Created:
- 2017-06-01
- Resource Type:
- Article
-
- Description:
- The recent military-style assault on the office of the French satirical magazine Charlie Hebdo , followed by a separate hostage standoff at a Kosher supermarket traumatized Paris and sent shock waves across Europe. The three-day terror spree in Paris ended with the deaths of 17 victims and three gunmen. The...
- Keyword:
- volume 1
- Creator:
- Arkar Hein, Liam Conway-Pearson, and Alexi Stocker
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/23/2018
- Date Modified:
- 04/23/2018
- Date Created:
- 2017-06-01
- Resource Type:
- Article
-
- Description:
- On February 13th, US Supreme Court Justice Antonin Scalia passed away, radically altering the makeup of the America’s highest court and raising the stakes for the 2016 presidential election. Mr Scalia leaves behind a Court that would be almost unrecognizable as the one he joined when he was appointed by...
- Keyword:
- volume 1
- Creator:
- Liam Conway-Pearson, Jose Trejos, and David Gernon
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/23/2018
- Date Modified:
- 04/23/2018
- Date Created:
- 2017-06-01
- Resource Type:
- Article
-
- Description:
- The Asian Infrastructure Investment Bank (AIIB), a new international financial institution created by China, recently gained media attention following the induction of several new high-profile members. The bank was initially proposed by China and then launched last October with 20 other countries. Since then, many more nations – including some...
- Keyword:
- volume 1
- Creator:
- Arkar Hein and Wooyoung Lee
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/23/2018
- Date Modified:
- 04/23/2018
- Date Created:
- 2017-06-01
- Resource Type:
- Article
-
- Description:
- For the better part of 2014, anti-government protests have been raging in Caracas, the capital of Venezuela. These protests received international attention when three people were killed on February 12th. Since then violence on the street has claimed 17 lives and injured hundreds of people. The protests, ostensibly anti-government in...
- Keyword:
- volume 1
- Creator:
- Sam Houskeeper, Alexi Stocker, and Ben Mandel
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/23/2018
- Date Modified:
- 04/23/2018
- Date Created:
- 2017-06-01
- Resource Type:
- Article
-
- Description:
- On December 17th, Turkish police detained around 50 individuals accused of corruption and bribery. The scandal , which implicated Prime Minister Recep Tayyip Erdoğan, was that the arrested ranged from sons of government ministers to political allies in Turkey's financial sector. Thus began a new chapter in Mr Erdoğan’s battle...
- Keyword:
- volume 1
- Creator:
- Alexi Stocker, Tom Cui, and Monika Hur
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/23/2018
- Date Modified:
- 04/23/2018
- Date Created:
- 2017-06-01
- Resource Type:
- Article
-
- Description:
- As the world continues to grapple with dramatically lower oil prices, economic and political implications for certain major oil producers are beginning to materialize. Some countries, like Saudi Arabia, the world’s largest petroleum exporter, were more prepared for the global downturn than others. Unlike many oil producers, the Saudis are...
- Keyword:
- volume 1
- Creator:
- Liam Conway-Pearson, Ben Mandel, and Monika Hur
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/23/2018
- Date Modified:
- 04/23/2018
- Date Created:
- 2017-06-01
- Resource Type:
- Article
-
- Description:
- Innovative companies such as Uber and Airbnb have pioneered a new mode of business: the sharing economy. Uber, a car-sharing service, allows individual car owners to act as taxi drivers, connecting individuals seeking rides with those with cars willing to drive them, through a mobile app. Airbnb is a similar...
- Keyword:
- volume 1
- Creator:
- Mohamad Akef, Sam Ide, and Monika Hur
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/23/2018
- Date Modified:
- 04/23/2018
- Date Created:
- 2017-06-01
- Resource Type:
- Article
-
- Description:
- Welcome to the inaugural issue of Politica Northwestern . Politica Northwestern is the academic journal of Politics & Policy ( P&P ), a student publication at Northwestern University. P&P looks at the world in terms of what impact events will have. Political events happen all the time, but their impacts...
- Keyword:
- volume 1
- Creator:
- Wooyoung Lee
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 04/23/2018
- Date Modified:
- 04/23/2018
- Date Created:
- 2017-06-01
- Resource Type:
- Article
-
- Description:
- The Northwestern University Libraries Repository and Digital Curation (RDC) department is tasked with digitising and creating digital collections from the materials managed by the Libraries’ curators. The previous process for the intake and management of these projects created a situation of feast or famine regarding project work that was ready...
- Keyword:
- project management, workflows, digitization, and digital asset
- Creator:
- Young, Jennifer B., Zellner, Daniel, and Caizzi, Carolyn
- Owner:
- Carolyn Caizzi
- Date Uploaded:
- 01/30/2018
- Date Modified:
- 01/30/2018
- Date Created:
- 2017
- Resource Type:
- Article
-
- Description:
- There have been numerous studies that have aimed at improving the low tensile strength, stiffness, and toughness of cementitious materials. This study aims to show that all of these characteristics can be greatly improved by the addition of ladder scale reinforcement at the nano and micro scale. Carbon nanofibers (CNFs)...
- Keyword:
- nanofiber reinforcement, mechanical properties, carbon nanofibers, hybrid composites, polyvinyl alcohol microfibers, and scanning electron microscopy
- Creator:
- Surendra P. Shah, Zoi S. Metaxa, and Maria S. Konsta-Gdoutos
- Owner:
- Chris Diaz
- Date Uploaded:
- 08/14/2017
- Date Modified:
- 08/17/2017
- Date Created:
- 2011
- Resource Type:
- Article
-
- Keyword:
- crack response and vibration-induced cracking
- Creator:
- Charles H. Dowding
- Owner:
- Chris Diaz
- Date Uploaded:
- 08/14/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2001
- Resource Type:
- Article
-
- Description:
- Concern over construction vibration-induced cracking has led to development of a new approach to vibration monitoring called autonomous crack measurement (ACM) and illustrated in Figure 1. This paper describes the concept as well as sensor performance in the first test house fitted an ACM system. Response of three cracks in...
- Keyword:
- concrete masonry unit
- Creator:
- Charles H. Dowding and Michael Louis
- Owner:
- Chris Diaz
- Date Uploaded:
- 08/14/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2003
- Resource Type:
- Article
-
- Description:
- The Avalon Media System (Avalon) provides access and management for digital audio and video collections in libraries and archives. The open source project is led by the libraries of Indiana University Bloomington and Northwestern University and is funded in part by grants from The Andrew W. Mellon Foundation and Institute...
- Keyword:
- RDF, Avalon Media System, and metadata
- Creator:
- Young, Jennifer B. and Hardesty, Juliet H.
- Owner:
- Jennifer B Young
- Language:
- English
- Date Uploaded:
- 07/20/2017
- Date Modified:
- 07/24/2017
- Date Created:
- 2017-07-18
- Resource Type:
- Article
-
- Description:
- The nondestructive, in-situ testing of early-age concrete properties is a crucial point for the progress of many construction projects in the building sector. The application of such techniques can establish e.g. the earliest possible form removal from concrete construction elements, thereby opening highways to traffic or releasing prestress from steel...
- Keyword:
- Nondestructive testing
- Creator:
- Surendra P. Shah and Thomas Voigt
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/19/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2003
- Resource Type:
- Article
-
- Description:
- The Center for Advanced Cement-Based Materials (ACBM) is a consortium of researchers from: Northwestern University, University of Illinois at Urbana-Champaign, Purdue University, The University of Michigan, and The National Institute of Standards and Technology. This ACBM update contains information on the article "A better Maturity Meter?" by Surendra P. Shah...
- Keyword:
- Nondestructive testing
- Creator:
- Surendra P. Shah and Thomas Voigt
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/19/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2003-10
- Resource Type:
- Article
-
- Description:
- In his essay on Mali, Bruce Whitehouse of Lehigh University shows how failures of elected leaders, state institutions, and external donors can shift power to the streets and an uncertain contest among armed forces.
- Keyword:
- democracy and Mali
- Creator:
- Bruce Whitehouse
- Depositor:
- Chris Diaz
- Owner:
- Richard A Joseph
- Publisher:
- AFRICAPLUS
- Date Uploaded:
- 07/07/2017
- Date Modified:
- 07/07/2017
- Date Created:
- 2013-04-19
- Resource Type:
- Article
-
- Description:
- The diverse circuits and functional contributions of the basal ganglia, coupled with known differences in dopaminergic function in patients with schizophrenia, suggest they may be an important contributor to the etiology of the hallmark symptoms and cognitive dysfunction experienced by these patients. Using activation-likelihood-estimation meta-analysis of functional imaging research, we...
- Keyword:
- meta-analysis, schizophrenia, neuroimaging, Basal ganglia, and dopamine
- Creator:
- Courtney E. Russell, Vijay A. Mittal, Jessica A. Bernard, Raeana E. Newberry, and James R. M. Goen
- Owner:
- Chris Diaz
- Publisher:
- Elsevier
- Date Uploaded:
- 05/10/2017
- Date Modified:
- 05/10/2017
- Date Created:
- 2017-02-11
- Resource Type:
- Article
- Alternate Identifier:
- https://doi.org/10.1016/j.nicl.2017.01.034
-
- Description:
- We investigated the racial content of perceivers’ mental images of different socioeconomic categories. We selected participants who were either high or low in prejudice toward the poor. These participants saw 400 pairs of visually noisy face images. Depending on condition, participants chose the face that looked like a poor person,...
- Keyword:
- economic attitudes, social cognition, face perception, race, social class, and dehumanization
- Creator:
- Galen V. Bodenhausen and Ryan F. Lei
- Owner:
- Chris Diaz
- Publisher:
- Frontiers Media
- Date Uploaded:
- 05/10/2017
- Date Modified:
- 05/10/2017
- Date Created:
- 2017-04-05
- Resource Type:
- Article
- Alternate Identifier:
- https://doi.org/10.3389/fpsyg.2017.00519
-
- Description:
- Many preventable behaviors contribute to adolescent mortality and morbidity. Non-adherence to preventive measures represents a challenge and has been associated with worse health outcomes in this population. The widespread use of electronic communication technologies by adolescents, particularly the use of text messaging (short message service, SMS) and mobile phones, presents...
- Keyword:
- mobile applications, prevention, behavior, mobile phone, medication, adherence, adolescent, smartphone, and text messaging
- Creator:
- Sherif M. Badawy and Lisa M. Kuhns
- Owner:
- Chris Diaz
- Publisher:
- JMIR Publications
- Date Uploaded:
- 05/10/2017
- Date Modified:
- 05/10/2017
- Date Created:
- 2017-04-19
- Resource Type:
- Article
- Alternate Identifier:
- doi:10.2196/mhealth.6837
-
- Description:
- Metabolic syndrome has become a major public health challenge worldwide. The association between metabolic syndrome and DNA methylation is of great research interest. We constructed a binomial model to investigate the association between a metabolic syndrome index and DNA methylation in the Normative Aging Study. We applied the Iterative Sure...
- Keyword:
- elastic net, Metabolic syndrome, Bootstrap, ultra-high dimensional variable selection, methylation, and ISIS
- Creator:
- Joel Schwartz, Brian Joyce, Pantel S. Vokonas, Yinan Zheng, Wei Zhang, Lei Liu, Tao Gao, Lifang Hou, Grace Yoon, Weihau Guan, Zhou Zhang, Andrea A. Baccarelli, Wenxin Jiang, and Haixiang Zhang
- Owner:
- Chris Diaz
- Publisher:
- BioMed Central
- Date Uploaded:
- 05/10/2017
- Date Modified:
- 05/10/2017
- Date Created:
- 2017-03-07
- Resource Type:
- Article
- Alternate Identifier:
- DOI: 10.1186/s12859-017-1568-1
-
- Description:
- The Affordable Care Act (ACA) has expanded health coverage for thousands of Illinois residents. Expanded coverage, however, does not guarantee appropriate health care. Diabetes and its ocular complications serve as an example of how providers in underserved urban areas may not be able to keep up with new demand for...
- Keyword:
- diabetic retinopathy, opthalmology, and telehealth
- Creator:
- Curtis E. Margo, Kathryn L. Jackson, Jess J. Behrens, Charlesnika T. Evans, Michael Mbagwu, Abel N. Kho, Dustin D. French, and Theresa L. Walunas
- Owner:
- Chris Diaz
- Publisher:
- Springer
- Date Uploaded:
- 05/10/2017
- Date Modified:
- 05/10/2017
- Date Created:
- 2016-11-24
- Resource Type:
- Article
- Alternate Identifier:
- doi:10.1007/s40123-016-0072-4
-
- Description:
- When making serial predictions in a binary decision task, there is a clear tendency to assume that after a series of the same external outcome (e.g., heads in a coin flip), the next outcome will be the opposing one (e.g., tails), even when the outcomes are independent of one another....
- Keyword:
- gambler's fallacy
- Creator:
- Satoru Suzuki, Julia A. Mossbridge, and Christopher J.R. Roney
- Owner:
- Chris Diaz
- Publisher:
- PLOS
- Date Uploaded:
- 05/10/2017
- Date Modified:
- 05/10/2017
- Date Created:
- 2017-01-27
- Resource Type:
- Article
- Alternate Identifier:
- https://doi.org/10.1371/journal.pone.0170057
-
- Description:
- Electronic and vibrational correlations report on the dynamics and structure of molecular species, yet revealing these correlations experimentally has proved extremely challenging. Here, we demonstrate a method that probes correlations between states within the vibrational and electronic manifold with quantum coherence selectivity. Specifically, we measure a fully coherent four-dimensional spectrum...
- Keyword:
- Raman spectroscopy, nonlinear optics, and Chemical Physics
- Creator:
- Austin P. Spencer, William O. Hutson, and Elad Harel
- Owner:
- Chris Diaz
- Publisher:
- Springer Nature
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2017-03-17
- Resource Type:
- Article
- Alternate Identifier:
- doi:10.1038/ncomms14732
-
- Description:
- In the United States, African-Americans’ (AAs) HIV infection rates are higher than any other racial group, and AA men who have sex with women (MSW) are a significant proportion of new cases. There is little research into AA MSW HIV/AIDS knowledge, barriers, and facilitators of HIV testing in Chicago. We...
- Keyword:
- testing, msw, behaviors, preceptions, african-american, and HIV
- Creator:
- Mary K. Keeter, Michael A. Dixon, Ian J. Cooke, Adam B. Murphy, Nataka J. Moore, Courtney M.P. Hollowell, Gregory L. Jordan, Rohan D. Jeremiah, Marcus Murray, and Karriem Watson
- Owner:
- Chris Diaz
- Publisher:
- Frontiers Media
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2017-01-03
- Resource Type:
- Article
- Alternate Identifier:
- https://doi.org/10.3389/fpubh.2016.00286
-
- Description:
- Acoustic stimulation methods applied during sleep in young adults can increase slow wave activity (SWA) and improve sleep-dependent memory retention. It is unknown whether this approach enhances SWA and memory in older adults, who generally have reduced SWA compared to younger adults. Additionally, older adults are at risk for age-related...
- Keyword:
- aging, memory, acoustic stimulation, sleep, and slow waves
- Creator:
- Roneil G. Malkani, Rosemary Braun, Ken A. Paller, Phyllis C. Zee, Sandra Weintraub, Giovanni Santostasi, and Nelly A. Papalambros
- Owner:
- Chris Diaz
- Publisher:
- Frontiers Media
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2017-03-08
- Resource Type:
- Article
-
- Description:
- Transposable elements (TEs) have been recognized as potentially powerful drivers of genomic evolutionary change, but factors affecting their mobility and regulation remain poorly understood. Chaperones such as Hsp90 buffer environmental perturbations by regulating protein conformation, but are also part of the PIWI-interacting RNA pathway, which regulates genomic instability arising from...
- Keyword:
- transposable elements, piRNAs, stress-induced mutagenesis, hsp90, genome stability, and evolution
- Creator:
- Steve Whyard, Jeremy C. Brownlie, and Calen P. Ryan
- Owner:
- Chris Diaz
- Publisher:
- Oxford University Press
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2016-12-24
- Resource Type:
- Article
- Alternate Identifier:
- https://doi.org/10.1093/gbe/evw284
-
- Description:
- Since Reduced Emissions from Deforestation and Degradation “Plus” (REDD+) starting gaining traction in the UN climate negotiations in 2007, its architects and scholars have grappled with its community-level justice implications. On the one hand, supporters argue that REDD+ will help the environment and forest-dependent communities by generating payments for forest...
- Keyword:
- justice, institutions, REDD+, and forest peoples
- Creator:
- Kimberly R. Marion Suiseeya
- Owner:
- Chris Diaz
- Publisher:
- MDPI
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2019-11-30
- Resource Type:
- Article
-
- Description:
- US surveillance of sexually transmitted diseases (STDs) is often delayed and incomplete which creates missed opportunities to identify and respond to trends in disease. Internet search engine data has the potential to be an efficient, economical and representative enhancement to the established surveillance system. Google Trends allows the download of...
- Keyword:
- bacterial infection and epidemiology
- Creator:
- Supriya D. Mehta, Tarek Mikati, and Amy K. Johnson
- Owner:
- Chris Diaz
- Publisher:
- Springer Nature
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2016-11-09
- Resource Type:
- Article
-
- Description:
- Cathode degradation is a key factor that limits the lifetime of Li-ion batteries. To identify functional coatings that can suppress this degradation, we present a high-throughput density functional theory based framework which consists of reaction models that describe thermodynamic and electrochemical stabilities, and acid-scavenging capabilities of materials. Screening more than...
- Keyword:
- electronic structure and batteries
- Creator:
- Murathan Aykol, C. Wolverson, David Snydacker, Dane Morgan, Soo Kim, Zhi Lu, Shiqiang Hao, Scott Kirklin, and Vinay I. Hedge
- Owner:
- Chris Diaz
- Publisher:
- Spinger Nature
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2016-12-14
- Resource Type:
- Article
-
- Description:
- Quantum frequency conversion (QFC) of photonic signals preserves quantum information while simultaneously changing the signal wavelength. A common application of QFC is to translate the wavelength of a signal compatible with the current fiber-optic infrastructure to a shorter wavelength more compatible with high-quality single-photon detectors and optical memories. Recent work...
- Keyword:
- quantum communications, nonlinear optics, parametric processes, and pulse shaping
- Creator:
- Paritosh Manurkar, Nitin Jain, Martin M. Fejer, Prem Kumar, Yu-ping Huang, Gregory S. Kanter, Carsten Langrock, and Michael Silver
- Owner:
- Chris Diaz
- Publisher:
- Optical Society of America
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2016-11-08
- Resource Type:
- Article
- Alternate Identifier:
- https://doi.org/10.1364/OPTICA.3.001300
-
- Description:
- In Sub-Saharan Africa, epidemiological studies have reported an increasing burden of non-communicable diseases (NCD) among people living with HIV. NCD management can be feasibly integrated into HIV care; however, clinic readiness to provide NCD services in these settings should first be assessed and gaps in care identified. A cross-sectional survey...
- Keyword:
- Tanzania, HIV, Non-communicable diseases, Health system strengthening, and Integration
- Creator:
- Eric Aris, Guerino Chalamilla, Aisa Mhalu, Claudia Leung, Beatrice Christian, Claudia Hawkins, Hellen Siril, Happiness Koda, Talumba Samatta, Martha Tsere Maghimbi, and Lisa R. Hirschhorn
- Owner:
- Chris Diaz
- Publisher:
- BioMed Central
- Date Uploaded:
- 05/08/2017
- Date Modified:
- 05/08/2017
- Date Created:
- 2016-09-21
- Resource Type:
- Article
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