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Articles 1 - 30 of 34
Full-Text Articles in Entire DC Network
Composing And Decomposing: Understanding The Complexities Of Writing Processes With Play-Doh And Other Visual Representations, Susan D. Martin, Sherry A. Dismuke
Composing And Decomposing: Understanding The Complexities Of Writing Processes With Play-Doh And Other Visual Representations, Susan D. Martin, Sherry A. Dismuke
Cheryle (Sherry) Dismuke
This activity engages teachers in decomposition (Grossman et al., 2009) of writing processes. Teachers develop knowledge of and engage in writing/composition processes of planning, drafting, revising, editing, and publication, while at the same time they are immersed in models and modeling of classroom practices. Opportunities for development of both conceptual understandings and instructional tools (Grossman et al, 2000) thus arise regarding complex writing processes important to writing instruction, as well as to experience practice-focused pedagogies (Ball & Forzani, 2009; Hatch & Grossman, 2009; Lampert, 2009) linked to future practice.
Northern Thailand Geothermal Resources And Development: A Review And 2012 Update, Fongsaward Suvagondha Singharajwarapan, Spencer H. Wood, Natthaporn Prommakorn, Lara Owens
Northern Thailand Geothermal Resources And Development: A Review And 2012 Update, Fongsaward Suvagondha Singharajwarapan, Spencer H. Wood, Natthaporn Prommakorn, Lara Owens
Spencer H. Wood
Northern Thailand has 16 hot spring systems with surface temperatures near or greater than 80°C with potential for binary plant power generation. Presently only Fang system generates power from wells flowing a total of 8.3 1/s of 116°C water to a 300 kW single module Ormat binary plant. Current production is 150-250 KW, which potentially can be increased by constructing new wells and increasing flow by pumping. Of the other 15 systems, 4 are in national parks and not considered for development. Several of the hot springs systems have silica geothermometry >130°C suggesting significant undeveloped resources exist in northern Thailand. …
Directional Selection Causes Decanalization In A Group I Ribozyme, Eric J. Hayden, Christian Weikert, Andreas Wagner
Directional Selection Causes Decanalization In A Group I Ribozyme, Eric J. Hayden, Christian Weikert, Andreas Wagner
Eric J. Hayden
A canalized genotype is robust to environmental or genetic perturbations. Canalization is expected to result from stabilizing selection on a well-adapted phenotype. Decanalization, the loss of robustness, might follow periods of directional selection toward a new optimum. The evolutionary forces causing decanalization are still unknown, in part because it is difficult to determine the fitness effects of mutations in populations of organisms with complex genotypes and phenotypes. Here, we report direct experimental measurements of robustness in a system with a simple genotype and phenotype, the catalytic activity of an RNA enzyme. We find that the robustness of a population of …
Radiometric And Geometric Analysis Of Hyperspectral Imagery Acquired From An Unmanned Aerial Vehicle, Ryan Hruska, Jessica Mitchell, Matthew Anderson, Nancy F. Glenn
Radiometric And Geometric Analysis Of Hyperspectral Imagery Acquired From An Unmanned Aerial Vehicle, Ryan Hruska, Jessica Mitchell, Matthew Anderson, Nancy F. Glenn
Nancy Glenn
In the summer of 2010, an Unmanned Aerial Vehicle (UAV) hyperspectral calibration and characterization experiment of the Resonon PIKA II imaging spectrometer was conducted at the US Department of Energy’s Idaho National Laboratory (INL) UAV Research Park. The purpose of the experiment was to validate the radiometric calibration of the spectrometer and determine the georegistration accuracy achievable from the on-board global positioning system (GPS) and inertial navigation sensors (INS) under operational conditions. In order for low-cost hyperspectral systems to compete with larger systems flown on manned aircraft, they must be able to collect data suitable for quantitative scientific analysis. The …
Tensile-Strained Growth On Low-Index Gaas, Paul J. Simmonds, Minjoo Larry Lee
Tensile-Strained Growth On Low-Index Gaas, Paul J. Simmonds, Minjoo Larry Lee
Paul J. Simmonds
We present a comparative study of the growth of tensile-strained GaP on the four low-index surfaces of GaAs: (001), (110), (111)A, and (111)B. For each surface orientation we outline the growth conditions required for smooth GaAshomoepitaxy. We are able to predict the resulting surface morphology when GaP is deposited onto these four GaAssurfaces by considering the influence of surface orientation on tensile strain relief. GaP deposited on GaAs(001) forms extremely smooth, planar layers. In contrast, the elastic relief of tensile strain on both GaAs(110) and GaAs(111)A leads to the three-dimensional self-assembly of GaP into dislocation-free nanostructures. Similarities between tensile and …
Joint Estimation Of Channel And Oscillator Phase Noise In Mimo Systems, Hani Mehrpouyan, Ali A. Nasir, Steven D. Blostein, Thomas Eriksson, George K. Karagiannidis, Tommy Svensson
Joint Estimation Of Channel And Oscillator Phase Noise In Mimo Systems, Hani Mehrpouyan, Ali A. Nasir, Steven D. Blostein, Thomas Eriksson, George K. Karagiannidis, Tommy Svensson
Hani Mehrpouyan
Oscillator phase noise limits the performance of high speed communication systems since it results in time varying channels and rotation of the signal constellation from symbol to symbol. In this paper, joint estimation of channel gains and Wiener phase noise in multi-input multi-output (MIMO) systems is analyzed. The signal model for the estimation problem is outlined in detail and new expressions for the Cramér-Rao lower bounds (CRLBs) for the multi-parameter estimation problem are derived. A data-aided least-squares (LS) estimator for jointly obtaining the channel gains and phase noise parameters is derived. Next, a decision-directed weighted least-squares (WLS) estimator is proposed, …
Infrared Eclipses Of The Strongly Irradiated Planet Wasp-33b, And Oscillations Of Its Host Star, Drake Deming, Jonathan D. Fraine, Pedro V. Sada, Nikku Madhusudhan, Heather A. Knutson, Joseph Harrington, Jasmina Blecic, Sarah Nymeyer, Alexis M.S. Smith, Brian Jackson
Infrared Eclipses Of The Strongly Irradiated Planet Wasp-33b, And Oscillations Of Its Host Star, Drake Deming, Jonathan D. Fraine, Pedro V. Sada, Nikku Madhusudhan, Heather A. Knutson, Joseph Harrington, Jasmina Blecic, Sarah Nymeyer, Alexis M.S. Smith, Brian Jackson
Brian Jackson
We observe two secondary eclipses of the strongly irradiated transiting planet WASP-33b, in the Ks band at 2.15 μm, and one secondary eclipse each at 3.6 μm and 4.5 μm using Warm Spitzer. This planet orbits an A5V δ-Scuti star that is known to exhibit low-amplitude non-radial p-mode oscillations at about 0.1% semi-amplitude. We detect stellar oscillations in all of our infrared eclipse data, and also in one night of observations at J band (1.25 μm) out of eclipse. The oscillation amplitude, in all infrared bands except Ks, is about the same as in the optical. However, the stellar oscillations …
Structural And Optical Properties Of Inas/Alassb Quantum Dots With Gaas(Sb) Cladding Layers, Paul J. Simmonds, Ramesh Babu Laghumavarapu, Meng Sun, Andrew Lin, Charles J. Reyner, Baolai Liang, Diana L. Huffaker
Structural And Optical Properties Of Inas/Alassb Quantum Dots With Gaas(Sb) Cladding Layers, Paul J. Simmonds, Ramesh Babu Laghumavarapu, Meng Sun, Andrew Lin, Charles J. Reyner, Baolai Liang, Diana L. Huffaker
Paul J. Simmonds
We investigate the effect of GaAs1−xSbxcladding layer composition on the growth and properties of InAsself-assembledquantum dots surrounded by AlAs0.56Sb0.44 barriers. Lowering Sb-content in the GaAs1−xSbx improves the morphology of the InAs quantum dots and reduces cladding layer alloy fluctuations. The result is a dramatic increase in photoluminescence intensity from the InAs quantum dots, with a peak at 0.87 eV. The emission energy exhibits a cube root dependence on excitation power, consistent with the type-II band alignment of the quantum dots. The characteristics of this quantum dot system show promise for …
Intentional Web Presence: 10 Seo Strategies Every Academic Needs To Know, Joanna Dunlap, Patrick Lowenthal
Intentional Web Presence: 10 Seo Strategies Every Academic Needs To Know, Joanna Dunlap, Patrick Lowenthal
Patrick R. Lowenthal
A little over a year ago The Chronicle of Higher Education published a piece titled "Creating Your Web Presence: A Primer for Academics." We were excited to see some of the strategies Miriam Posner recommended for academics wanting to create and maintain a web presence. We had been doing many of the things Posner recommended, as well as a number of others. Thus, in many ways this article builds on Posner's piece but argues that faculty should be taking even more steps to build, maintain, and ensure that others can find their presence on the web.
The Evil-Mc Model For Ellipsoidal Variations Of Planet-Hosting Stars And Applications To The Hat-P-7 System, Brian K. Jackson, Nikole K. Lewis, Jason W. Barnes, L. Drake Deming, Adam P. Showman, Jonathan J. Fortney
The Evil-Mc Model For Ellipsoidal Variations Of Planet-Hosting Stars And Applications To The Hat-P-7 System, Brian K. Jackson, Nikole K. Lewis, Jason W. Barnes, L. Drake Deming, Adam P. Showman, Jonathan J. Fortney
Brian Jackson
We present a new model for Ellipsoidal Variations Induced by a Low-Mass Companion, the EVIL-MC model. We employ several approximations appropriate for planetary systems to substantially increase the computational efficiency of our model relative to more general ellipsoidal variation models and improve upon the accuracy of simpler models. This new approach gives us a unique ability to rapidly and accurately determine planetary system parameters. We use the EVIL-MC model to analyze Kepler Quarter 0-2 (Q0-2) observations of the HAT-P-7 system, an F-type star orbited by a ~ Jupiter-mass companion. Our analysis corroborates previous estimates of the planet-star mass ratio q …
Constraining Tidal Dissipation In Stars From The Destruction Rates Of Exoplanets, Kaloyan Penev, Brian Jackson, Federico Spada, Nicole Thom
Constraining Tidal Dissipation In Stars From The Destruction Rates Of Exoplanets, Kaloyan Penev, Brian Jackson, Federico Spada, Nicole Thom
Brian Jackson
We use the distribution of extrasolar planets in circular orbits around stars with surface convective zones detected by ground-based transit searches to constrain how efficiently tides raised by the planet are dissipated on the parent star. We parameterize this efficiency as a tidal quality factor (Q*). We conclude that the population of currently known planets is inconsistent with Q* < 107 at the 99% level. Previous studies show that values of Q* between 105 and 107 are required in order to explain the orbital circularization of main-sequence low-mass binary stars in clusters, suggesting that different dissipation mechanisms might be acting in the two cases, most likely due to the very different tidal forcing frequencies relative to the stellar rotation frequency occurring for star-star versus planet-star systems.
Detection Of Thermal Emission From A Super-Earth, Brice-Olivier Demory, Michaël Gillon, Sara Seager, Bjoern Benneke, Drake Deming, Brian Jackson
Detection Of Thermal Emission From A Super-Earth, Brice-Olivier Demory, Michaël Gillon, Sara Seager, Bjoern Benneke, Drake Deming, Brian Jackson
Brian Jackson
We report on the detection of infrared light from the super-Earth 55 Cnc e, based on four occultations obtained with Warm Spitzer at 4.5 μm. Our data analysis consists of a two-part process. In a first step, we perform individual analyses of each data set and compare several baseline models to optimally account for the systematics affecting each light curve. We apply independent photometric correction techniques, including polynomial detrending and pixel mapping, that yield consistent results at the 1σ level. In a second step, we perform a global Markov Chain Monte Carlo analysis, including all four data sets that yield …
Assessing Critical Access Hospital (Cah) Assets & Capabilities For Recruiting And Retaining Physicians: The North Dakota Cah Community Apgar Program, David Schmitz, Ed Baker, Aaron Ortiz
Assessing Critical Access Hospital (Cah) Assets & Capabilities For Recruiting And Retaining Physicians: The North Dakota Cah Community Apgar Program, David Schmitz, Ed Baker, Aaron Ortiz
Edward T. Baker
The Critical Access Hospital Community Apgar Questionnaire (CAH CAQ) has identified 50 factors important to recruitment of family physicians to rural communities. This presentation will compare CAH CAQ results across North Dakota and various rural states. These comparisons may be used to share best practices across CAHs. In addition, statewide education, policy and research initiatives can be developed from these data.
Notetaking On The Ipad: Evernote, Memo Cordova
Notetaking On The Ipad: Evernote, Memo Cordova
Jose Guillermo "Memo" Cordova Silva
Presentation to Boise State faculty on the uses and functionality of the Evernote environment.
The Punk Library: Developing Library Instruction In The Mobile Age, Amy E. Vecchione
The Punk Library: Developing Library Instruction In The Mobile Age, Amy E. Vecchione
Amy E. Vecchione
Do you teach workshops at your public library? Do you teach middle school students who just want to use Google? Do you teach college level information literacy? If you said yes to any of those questions, this workshop is for you. The material presented in this workshop will help guide you towards new ideas for instruction that use active learning and constructivist principles, particularly how they apply to mobile devices and mobile learning. We’ll discuss how to adapt instruction to the new culture of learning.
Transitioning From Graduate Student To Professor, Michal Martinez
Transitioning From Graduate Student To Professor, Michal Martinez
Michal Temkin Martinez
I was invited to give the annual talk on transitioning into a tenure-track position from the Ph.D. at USC. This talk was sponsored by USC's Center for Excellence in Teaching.
Dust Supply Varies With Sagebrush Microsites And Time Since Burning In Experimental Erosion Events, Joel B. Sankey, Matthew J. Germino, Nancy F. Glenn
Dust Supply Varies With Sagebrush Microsites And Time Since Burning In Experimental Erosion Events, Joel B. Sankey, Matthew J. Germino, Nancy F. Glenn
Nancy Glenn
[1] Wind erosion and large dust plumes are an increasingly important attribute in cold-desert rangelands, particularly as wildfire increases. Fire reduces vegetation, which increases erosivity. Whether sediment supply increases after fire has not been determined in this environment. We asked how sediment supply varied among sites burned 2-months to 5-years previously, in comparison to unburned sagebrush steppe, across 500 km of southern Idaho, USA. We measured potential dust emissions (PM10, particles <10μm diameter) in response to step changes in friction velocity (u*), with a field-based wind tunnel analog (PI-SWERL, Portable In Situ Wind Erosion Laboratory). We evaluated how emissions, sediment supply, and a proxy of erodibility varied among the microsite soil patterning in these sites (shrub islands and interspaces). Emissions were three orders of magnitude greater on burned compared to unburned surfaces, especially where shrubs had existed and sites burned more recently. Greater emission rates were due to greater sediment supply, whereas the proxy of erodibility did not vary among the surfaces for dry conditions that prevail during large wind erosion events (near −150 MPa at the surface). Wetter surface conditions, similar to those after precipitation or snowmelt, resulted in less dust emission on a recently burned site. Dust supply increases in initial postfire years especially on microsites that previously had shrubs. Abundance of shrubs is responsive to management practices that affect prefire vegetation, and grazing-induced increases in shrubs might, for example, render a site more vulnerable to dust emissions following fire.
Extrasolar Planet Transits Observed At Kitt Peak National Observatory, Pedro V. Sada, Drake Deming, Donald E. Jennings, Brian K. Jackson, Catrina M. Hamilton, Jonathan Fraine, Steven W. Peterson, Flynn Haase, Kevin Bays, Allen Lunsford, Eamon O'Gorman
Extrasolar Planet Transits Observed At Kitt Peak National Observatory, Pedro V. Sada, Drake Deming, Donald E. Jennings, Brian K. Jackson, Catrina M. Hamilton, Jonathan Fraine, Steven W. Peterson, Flynn Haase, Kevin Bays, Allen Lunsford, Eamon O'Gorman
Brian Jackson
We obtained J-, H-, and JH-band photometry of known extrasolar planet transiting systems at the 2.1 m Kitt Peak National Observatory Telescope using the FLAMINGOS infrared camera between 2008 October and 2011 October. From the derived light curves we have extracted the midtransit times, transit depths and transit durations for these events. The precise midtransit times obtained help improve the orbital periods and also constrain transit-time variations of the systems. For most cases the published system parameters successfully accounted for our observed light curves, but in some instances we derive improved planetary radii and orbital periods. We complemented our 2.1 …
Searching For Pre-Lan Na Cities In The Golden Triangle Area, Thailand And Laos, Spencer H. Wood
Searching For Pre-Lan Na Cities In The Golden Triangle Area, Thailand And Laos, Spencer H. Wood
Spencer H. Wood
No abstract provided.
Predict The Service Life Of Pavement: Evaluate Moisture Sensitivity And Oxidative Aging Of Asphalt, Yang Lu
Predict The Service Life Of Pavement: Evaluate Moisture Sensitivity And Oxidative Aging Of Asphalt, Yang Lu
Yang Lu
Pavements are subject to different stresses during their service life. Correctly predicting the service life provides decisive information to pavement design and rehabilitation. A properly designed pavement material will perform adequately during its design life, and normally the distresses will not exceed the allowable limits. However, premature pavement failure may often appear due to several degradation factors. Moisture sensitivity and asphalt aging properties are two main factors that contribute to the pavement service life reduction. In this editorial, the author will give some comments on the current research status about these two phenomena.
Boise Bike Share Location Analysis, Thomas Wuerzer, Susan Mason, Riley Youngerman
Boise Bike Share Location Analysis, Thomas Wuerzer, Susan Mason, Riley Youngerman
Susan G. Mason
In consultation with the Central District Health Department, the Community and Regional Planning program conducted a bike share analysis that locates and optimizes the number of bikes and bike share stations for a 2.25-mile radius in the Downtown Boise area. After examining several bike share projects in other cities and studies of their methodologies two analyses from Seattle, Washington and Los Angeles County, California proved helpful in developing the Boise Bike Share Location Analysis. Using GIS optimization analysis to determine the optimal number of bikes and bike stations resulted in 140 bikes and 14 stations as the optimal finding.
Timing And Carrier Synchronization With Channel Estimation In Multi-Relay Cooperative Networks, Ali A. Nasir, Hani Mehrpouyan, Steven D. Blostein, Salman Durrani, Rodney A. Kennedy
Timing And Carrier Synchronization With Channel Estimation In Multi-Relay Cooperative Networks, Ali A. Nasir, Hani Mehrpouyan, Steven D. Blostein, Salman Durrani, Rodney A. Kennedy
Hani Mehrpouyan
Multiple distributed nodes in cooperative networks generally are subject to multiple carrier frequency offsets (MCFOs) and multiple timing offsets (MTOs), which result in time varying channels and erroneous decoding. This paper seeks to develop estimation and detection algorithms that enable cooperative communications for both decode-and-forward (DF) and amplify-and-forward (AF) relaying networks in the presence of MCFOs, MTOs, and unknown channel gains. A novel transceiver structure at the relays for achieving synchronization in AF-relaying networks is proposed. New exact closed-form expressions for the Cramér-Rao lower bounds (CRLBs) for the multi-parameter estimation problem are derived. Next, two iterative algorithms based on the …
Linguistics At Boise State University, Michal Martinez
Linguistics At Boise State University, Michal Martinez
Michal Temkin Martinez
No abstract provided.
Advancing Linguistics As A Science In Undergrate Programs: Issues And Strategies, Michal Martinez
Advancing Linguistics As A Science In Undergrate Programs: Issues And Strategies, Michal Martinez
Michal Temkin Martinez
No abstract provided.
Reconciling Molecular Regulatory Mechanisms With Noise Patterns Of Bacterial Metabolic Promoters In Induced And Repressed States, Matthew L. Ferguson, Dominique Le Coq, Matthieu Jules, Stéphane Aymerich, Ovidiu Radulescu, Nathalie Declerck, Catherine A. Royer
Reconciling Molecular Regulatory Mechanisms With Noise Patterns Of Bacterial Metabolic Promoters In Induced And Repressed States, Matthew L. Ferguson, Dominique Le Coq, Matthieu Jules, Stéphane Aymerich, Ovidiu Radulescu, Nathalie Declerck, Catherine A. Royer
Matthew L. Ferguson
Assessing gene expression noise in order to obtain mechanistic insights requires accurate quantification of gene expression on many individual cells over a large dynamic range. We used a unique method based on 2-photon fluorescence fluctuation microscopy to measure directly, at the single cell level and with single-molecule sensitivity, the absolute concentration of fluorescent proteins produced from the two Bacillus subtilis promoters that control the switch between glycolysis and gluconeogenesis. We quantified cell-to-cell variations in GFP concentrations in reporter strains grown on glucose or malate, including very weakly transcribed genes under strong catabolite repression. Results revealed strong transcriptional bursting, particularly for …
Creative Commons – Saving The Internet One License At A Time, Michelle Armstrong
Creative Commons – Saving The Internet One License At A Time, Michelle Armstrong
Michelle Armstrong
Traditionally copyright has been inflexible, creating few opportunities for those who wish to share or use a new work. Copyright is automatically assigned as soon as an original creation is fixed in a tangible medium. Although registering a work with the U.S. Copyright Office may be beneficial, is not required for an author to receive the rights and protections provided by the federal law. Under this system, anyone wanting to use a creation is limited to the allowable uses outlined in the law or must justify their use through a fair use analysis. All other applications of a work are …
Spring 2012 Brochure, Samantha C. Harvey
Performance Of Circular Qam Constellations With Time Varying Phase Noise, M. Assad Tariq, Hani Mehrpouyan, Tommy Svensson
Performance Of Circular Qam Constellations With Time Varying Phase Noise, M. Assad Tariq, Hani Mehrpouyan, Tommy Svensson
Hani Mehrpouyan
Time varying phase noise is a limiting factor in high-speed wireless communication systems, e.g., microwave backhaul links in cellular networks. This paper seeks to investigate the performance of circular M-ary quadrature amplitude modulations (M-QAMs) in the presence of time varying phase noise. A new approximate union bound expression for the symbol-error probability (SEP) of a specific circular M-QAM constellation is derived. Numerical results show that this expression is accurate at medium-to-high signal-to-noise ratios (SNRs) for different constellation orders, M. Next, exact closed-form expressions for the SEP of binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK) …
Estimation Of Synchronization Parameters In Af Cooperative Networks, Ali A. Nasir, Hani Mehrpouyan, Steven D. Blostein, Salman Durrani, Rodney A. Kennedy
Estimation Of Synchronization Parameters In Af Cooperative Networks, Ali A. Nasir, Hani Mehrpouyan, Steven D. Blostein, Salman Durrani, Rodney A. Kennedy
Hani Mehrpouyan
In cooperative networks, multiple carrier frequency offsets (MCFOs) and multiple timing offsets (MTOs) originate due to multiple distributed nodes. In this paper, algorithms for joint estimation of these parameters and channels in amplify-and-forward (AF) relaying networks are proposed. A new training model and transceiver structure at the relays for achieving synchronization throughout the network is devised. New exact closed-form expressions for the Cramér-Rao lower bounds (CRLBs) for the multiparameter estimation problem are derived. An estimation method is proposed for jointly estimating MCFOs, MTOs, and channel gains at the destination based on space-alternating generalized expectation maximization (SAGE) and compared to a …
Time-Varying Phase Noise And Channel Estimation In Mimo Systems, Hani Mehrpouyan, Ali A. Nasir, Thomas Eriksson, Steven D. Blostein, George K. Karagiannidis, Tommy Svensson
Time-Varying Phase Noise And Channel Estimation In Mimo Systems, Hani Mehrpouyan, Ali A. Nasir, Thomas Eriksson, Steven D. Blostein, George K. Karagiannidis, Tommy Svensson
Hani Mehrpouyan
Performance of high speed communication systems is negatively affected by oscillator phase noise (PN). In this paper joint estimation of channel gains and Wiener PN in multi-input multi-output (MIMO) systems is analyzed. The signal model for the estimation problem is outlined in detail. In order to reduce overhead, a low complexity data-aided least-squares (LS) estimator for jointly obtaining the channel gains and PN parameters is derived. In order to track PN processes over a frame, a new decision-directed extended Kalman filter (EKF) is proposed. Numerical results show that the proposed LS and EKF based PN estimator performances are close …