Digital Commons Network^™

Formative Assessment In Seven Good Moves, Brent M. Duckor

Brent M. Duckor

The research is clear: What teachers do in their classrooms matters. But which practices really make a difference? John Hattie (2012) conducted an extensive meta-analysis, looking at 800 meta-analyses that focused on locating a specific student achievement outcome and identifying an influence on that outcome. Formative assessment topped his list of the most influential practices that improve student outcomes. What makes formative assessment so effective? It depends on whom you talk to. Although experts tell us that formative assessment is one of the most powerful ways to raise student achievement (Black & Wiliam, 1998), we don't always know which practices …

Low Mach Number Fluctuating Hydrodynamics Of Diffusively Mixing Fluids, Aleksandar Donev, Andy J. Nonaka, Yifei Sun, Thomas Fai, Alejandro Garcia, John B. Bell

Alejandro Garcia

We formulate low Mach number fluctuating hydrodynamic equations appropriate for modeling diffusive mixing in isothermal mixtures of fluids with different density and transport coefficients. These equations eliminate the fast isentropic fluctuations in pressure associated with the propagation of sound waves by replacing the equation of state with a local thermodynamic constraint. We demonstrate that the low Mach number model preserves the spatio-temporal spectrum of the slower diffusive fluctuations. We develop a strictly conservative finite-volume spatial discretization of the low Mach number fluctuating equations in both two and three dimensions. We construct several explicit Runge-Kutta temporal integrators that strictly maintain the …

The Influence Of Personality And Ability On Undergraduate Teamwork And Team Performance, Jinny Rhee, David W. Parent, Anuradha Basu

David W. Parent

The ability to work effectively on a team is highly valued by employers, and collaboration among students can lead to intrinsic motivation, increased persistence, and greater transferability of skills. Moreover, innovation often arises from multidisciplinary teamwork. The influence of personality and ability on undergraduate teamwork and performance is not comprehensively understood. An investigation was undertaken to explore correlations between team outcomes, personality measures and ability in an undergraduate population. Team outcomes included various self-, peer- and instructor ratings of skills, performance, and experience. Personality measures and ability involved the Five-Factor Model personality traits and GPA. Personality, GPA, and teamwork survey …

Theravada Buddhism And Political Engagement Among The Thai-Lao Of North East Thailand: The Bun Phra Wet Ceremony, Sandra Cate

Sandra Cate

The Thai-Lao of North East Thailand (Isan), the major ethnic group in a core area of the Red Shirt movement, have long expressed concern with the well-being of the muang – now nation-state – in which they reside. This paper explores the proposition that the moral foundations for continuing political engagement at the muang level are explicitly stated in the annual Theravada Buddhist festival, the Bun Phra Wet, celebrated in almost every Thai-Lao village. Moreover, these concerns also involve appropriate actions by the people to correct the systems in which they live.

Design Optimization Of Transistors Used For Neural Recording, Eric J. Basham, David W. Parent

David W. Parent

Neurons cultured directly over open-gate field-effect transistors result in a hybrid device, the neuron-FET. Neuron-FET amplifier circuits reported in the literature employ the neuron-FET transducer as a current-mode device in conjunction with a transimpedance amplifier. In this configuration, the transducer does not provide any signal gain, and characterization of the transducer out of the amplification circuit is required. Furthermore, the circuit requires a complex biasing scheme that must be retuned to compensate for drift. Here we present an alternative strategy based on the design approach to optimize a single-stage common-source amplifier design. The design approach facilitates in circuit characterization of …

National Schooling In Crisis: Neoliberal Policies And The 2011 Justice Campaign For The Pgcps Filipino Overseas Contract Teachers, Peter Chua

Peter Chua

No abstract provided.

Reliability Testing Of The Pabs (Pedestrian And Bicycling Survey) Method, Asha W. Agrawal, Ann Forsyth, Kevin J. Krizek, Eric Stonebraker

Asha W. Agrawal

The Pedestrian and Bicycling Survey (PABS) is a questionnaire designed to be economical and straightforward to administer so that it can be used by local governments interested in measuring the amount and purposes of walking and cycling in their communities. In addition, it captures key sociodemographic characteristics of those participating in these activities. Methods: In 2009 and 2010 results from the 4-page mail-out/mail-back PABS were tested for reliability across 2 administrations (test-retest reliability). Two versions--early and refined--were tested separately with 2 independent groups of university students from 4 universities (N = 100 in group 1; N = 87 in group …

What The Progressives Had In Common, Glen Gendzel

Glen Gendzel

When Professor Benjamin Parke De Witt of New York University sat down to write the first history of the progressive movement in 1915, he promised “to give form and definiteness to a movement which is, in the minds of many, confused and chaotic.” Apparently it was a fool's errand, because confusion and chaos continued to plague historians of early twentieth-century reform long after Professor De Witt laid his pen to rest. The maddening variety of reform and reformers in the early twentieth century has perpetually confounded historians' efforts to identify what, if anything, the progressives had in common. Back in …

Drosophila Model For Fetal Alcohol Syndrome Disorders: Role For The Insulin Pathway, Rachael L. French, K D. Mcclure, U Heberlein

Rachael L. French

Prenatal exposure to ethanol in humans results in a wide range of developmental abnormalities, including growth deficiency, developmental delay, reduced brain size, permanent neurobehavioral abnormalities and fetal death. Here we describe the use of Drosophila melanogaster as a model for exploring the effects of ethanol exposure on development and behavior. We show that developmental ethanol exposure causes reduced viability, developmental delay and reduced adult body size. We find that flies reared on ethanol-containing food have smaller brains and imaginal discs, which is due to reduced cell division rather than increased apoptosis. Additionally, we show that, as in mammals, flies reared …

Speciation, Luminescence, And Alkaline Fluorescence Quenching Of 4-(2-Methylbutyl)Aminodipicolinic Acid (H2mebadpa), Gilles Muller, A. J. Ingram, A. G. Dunpal, R. Dipietro

Gilles Muller

4-(2-Methylbutyl)aminodipicolinic acid (H2MEBADPA) has been synthesized and fully characterized in terms of aqueous phase protonation constants (pKa's) and photophysical measurements. The pKa's were determined by spectrophotometric titrations, utilizing a fully sealed titration system. Photophysical measurements consisted of room temperature fluorescence and frozen solution phosphorescence as well as quantum yield determinations at various pH, which showed that only fully deprotonated MEBADPA2– is appreciably emissive. The fluorescence of MEBADPA2– has been determined to be quenched by hydroxide and methoxide anions, most likely through base-catalyzed excited-state tautomerism or proton transfer. This quenching phenomenon has been quantitatively explored through steady-state and time-resolved fluorescence measurements. …

Diffusive Transport Enhanced By Thermal Velocity Fluctuations, Alejandro Garcia, Aleksandar Donev, Anton De La Fuente, John B. Bell

Alejandro Garcia

We study the contribution of advection by thermal velocity fluctuations to the effective diffusion coefficient in a mixture of two identical fluids. We find good agreement between a simple fluctuating hydrodynamics theory and particle and finite-volume simulations. The enhancement of the diffusive transport depends on the system size L and grows as ln⁡(L/L0) in quasi-two-dimensional systems, while in three dimensions it scales as L0-1-L-1, where L0 is a reference length. Our results demonstrate that fluctuations play an important role in the hydrodynamics of small-scale systems.

Contemporary And Historical Separation Of Transequatorial Migration Between Genetically Distinct Seabird Populations, M J. Rayner, M E. Hauber, T E. Steeves, H A. Lawrence, D R. Thompson, P M. Sagar, S J. Bury, R A. Phillips, T J. Landers, L Ranjard, Scott A. Shaffer

Scott A. Shaffer

Pelagic seabirds are highly mobile, reducing the likelihood of allopatric speciation where disruption of gene flow between populations is caused by physically insurmountable, extrinsic barriers. Spatial segregation during the non-breeding season appears to provide an intrinsic barrier to gene flow among seabird populations that otherwise occupy nearby or overlapping regions during breeding, but how this is achieved remains unclear. Here we show that the two genetically distinct populations of Cook's petrel (Pterodroma cookii) exhibit transequatorial separation of non-breeding ranges at contemporary (ca. 2–3 yrs) and historical (ca. 100 yrs) time scales. Segregation during the non-breeding season per se appears as …

Developing A Sustainability Plan At A Large U.S. College Of Education, Grinell Smith

Grinell Smith

Despite growing awareness of its importance, most sustainability education efforts in tertiary institutions do not significantly impact curricula. This paper details some of the activities and processes used to draft a sustainability strategic plan designed to address sustainability at the curricular level rather than merely the operational level within a large college of education at a large U.S. public university. The plan is also presented. Our goal was not to articulate a fixed policy but rather to produce a coherent plan that (1) fosters awareness and encourage people to join the effort and (2) readily accommodates input as more people …

A Critical Look At The Role Of Technology As A Transformative Agent, Grinell Smith

Grinell Smith

No abstract provided.

Changes In Temperature Of Heel Skin Under Pressure In Hip Surgery Patients, Vivian K. Wong, N. A. Stotts, H. W. Hopf, G. A. Dowling, E. S. Froelicher

Vivian K. Wong

OBJECTIVE: The aim of the study was to examine the effect of external pressure of the bed surface on heel skin temperature in adults in the first 3 days after hip surgery.

DESIGN: A quasi-experimental study in a prospective, within-subjects, repeated-measures design.

SETTING: This study was performed at 2 acute-care hospitals.

PARTICIPANTS: Eighteen subjects (9 men and 9 women) with a mean age of 58.3 (±16.1) years were recruited after hip surgery at the 2 hospitals.

METHODS: Temperature sensors were placed on the plantar surface of each foot, close to the heels. Measures were taken when the heels were (1) …

Skin Blood Flow Response To 2-Hour Repositioning In The Long-Term Care Residents: A Pilot Study, Vivian K. Wong

Vivian K. Wong

PURPOSE: The purpose of this noninvasive pilot study was to examine the changes in transcutaneous oxygen (tcO2), skin temperature, and hyperemic response in the heels, sacrum, and trochanters in a 2-hour loading-unloading condition in nursing home residents who are positioned in supine and lateral positions.

DESIGN: A 1-group, prospective, repeated-measures design was used.

SUBJECTS AND SETTING: Nine subjects (5 males, 4 females) with a mean age of 85.3 ± 10.86 years (mean ± SD) who required help in turning and positioning at a skilled nursing facility participated in the study.

METHODS: Oxygen and temperature sensors were placed on the heels, …

The New Rules Of For Measuring Teacher Quality: Lessons Learned From The Assessment Experts, Brent M. Duckor

Brent M. Duckor

No abstract provided.

Managing Disputes With Nonmarket Stakeholders: Wage A Fight, Wait, Withdraw, Or Work It Out?", Anne T. Lawrence

Anne T. Lawrence

How do managers respond when confronted with the demands of activist stakeholders over whom they exercise no direct control? What strategies do managers adopt, and why? Which of these are most effective—and under what conditions? Increasingly, businesses today face difficult challenges in response to changing public expectations and newly emergent techniques of stakeholder influence. New communications technologies enable activists concerned about business behavior to mobilize supporters around the world in real time. Many firms conduct their work on a global stage, where damage to reputation in one location can quickly reverberate around the world. This article develops a typology of …

Computational Fluctuating Fluid Dynamics, Alejandro Garcia, John B. Bell, Sarah Williams

Alejandro Garcia

This paper describes the extension of a recently developed numerical solver for the Landau-Lifshitz Navier-Stokes (LLNS) equations to binary mixtures in three dimensions. The LLNS equations incorporate thermal fluctuations into macroscopic hydrodynamics by using white-noise fluxes. These stochastic PDEs are more complicated in three dimensions due to the tensorial form of the correlations for the stochastic fluxes and in mixtures due to couplings of energy and concentration fluxes (e.g., Soret effect). We present various numerical tests of systems in and out of equilibrium, including time-dependent systems, and demonstrate good agreement with theoretical results and molecular simulation

On The Accuracy Of Explicit Finite-Volume Schemes For Fluctuating Hydrodynamics, Aleksandar Donev, Eric Vanden-Eijnden, Alejandro Garcia, John B. Bell

Alejandro Garcia

This paper describes the development and analysis of finite-volume methods for the Landau–Lifshitz Navier–Stokes (LLNS) equations and related stochastic partial differential equations in fluid dynamics. The LLNS equations incorporate thermal fluctuations into macroscopic hydrodynamics by the addition of white noise fluxes whose magnitudes are set by a fluctuation-dissipation relation. Originally derived for equilibrium fluctuations, the LLNS equations have also been shown to be accurate for nonequilibrium systems. Previous studies of numerical methods for the LLNS equations focused primarily on measuring variances and correlations computed at equilibrium and for selected nonequilibrium flows. In this paper, we introduce a more systematic approach …

A Hybrid Particle-Continuum Method For Hydrodynamics Of Complex Fluids, Alejandro Garcia, Aleksandar Donev, John B. Bell, Berni Alder

Alejandro Garcia

A previously developed hybrid particle-continuum method [J. B. Bell, A. Garcia, and S. A. Williams, Multiscale Model. Simul., 6 (2008), pp. 1256–1280] is generalized to dense fluids and two- and three-dimensional flows. The scheme couples an explicit fluctuating compressible Navier–Stokes solver with the isotropic direct simulation Monte Carlo (DSMC) particle method [A. Donev, A. L. Garcia, and B. J. Alder, J. Stat. Mech. Theory Exp., 2009 (2009), article P11008]. To achieve bidirectional dynamic coupling between the particle (microscale) and continuum (macroscale) regions, the continuum solver provides state-based boundary conditions to the particle subdomain, while the particle solver provides flux-based boundary …

Shearwater Foraging In The Southern Ocean: The Roles Of Prey Availability And Winds, B Raymond, Scott A. Shaffer, S Sokolov, E Woehler, D P. Costa, L Einoder, M Hindell, G Hosie, M Pinkerton, P M. Sagar, D Scott, A Smith, D R. Thompson, C Vertigan, H Weimerskirch

Scott A. Shaffer

Background Sooty (Puffinus griseus) and short-tailed (P. tenuirostris) shearwaters are abundant seabirds that range widely across global oceans. Understanding the foraging ecology of these species in the Southern Ocean is important for monitoring and ecosystem conservation and management. Methodology/Principal Findings Tracking data from sooty and short-tailed shearwaters from three regions of New Zealand and Australia were combined with at-sea observations of shearwaters in the Southern Ocean, physical oceanography, near-surface copepod distributions, pelagic trawl data, and synoptic near-surface winds. Shearwaters from all three regions foraged in the Polar Front zone, and showed particular overlap in the region around 140°E. Short-tailed shearwaters …

Niche Partitioning Among And Within Sympatric Tropical Seabirds Revealed By Stable Isotope Analysis, H S. Young, D J. Mccauley, R Dirzo, R D. Dunbar, Scott A. Shaffer

Scott A. Shaffer

The low productivity and unpredictable nature of resources in tropical waters would appear to make resource partitioning among predators difficult. Yet, stable isotope data from the present study suggest that substantial resource partitioning occurs among tropical seabird communities, both between and within species. In the present study, we compared δ13C and δ15N levels among 8 sympatric tropical seabird species. For a subset of these species, we also examined isotopic levels across years, breeding periods, and sexes. When breeding and non-breeding periods were both considered, we found that all species occupied distinct isotopic niches across at least one time period. Resource …

Farmers' Search For Information During The Uk Foot-And-Mouth Disease Crisis- What Can We Learn?, Christine Hagar

Christine Hagar

This paper reports on the findings of a study which explored the multiple information needs that faced the Cumbrian farming community in the north-west of England during the 2001 UK foot-and-mouth disease outbreak. Findings highlighted the importance of: changes in information needs at different stages of the crisis, context in which information seeking took place, overlap of information and emotional needs, formal and informal channels of information seeking during the crisis, farmers as information providers as well as information seekers, sense-making approach to information seeking during the crisis, trusted information sources need for a mix of ICTs during the crisis, …

Crisis Informatics: Introduction, Christine Hagar

Christine Hagar

No abstract available.

Introducing Stem Majors To The Teaching Profession Through Authentic Experiences As Tutors, Grinell Smith

Grinell Smith

Recruiting people with rich backgrounds in science, technology, engineering, and mathematics (STEM) into the teaching profession has historically been difficult and remains so today. In this bounded instrumental case study, undergraduate STEM majors were trained and placed as science and math tutors in grades 9-12, with an overarching goal of encouraging them to consider teaching as a possible career path. Several themes emerged from the tutors’ experiences as significant in their willingness to consider a career in teaching, including altruism from helping others, satisfaction from tutees’ improved academic performance, and a more nuanced understanding of the complex nature of teaching.

Women Of The Long View, Victoria Rue

Victoria Rue

No abstract provided.

Resisting Mccarthyism: To Sign Or Not To Sign California's Loyalty Oath [Review Essay], Glen Gendzel

Glen Gendzel

No abstract provided.

Measuring Measuring: Toward A Theory Of Proficiency With The Constructing Measures Framework, Brent M. Duckor, K Draney, M Wilson

Brent M. Duckor

This paper is relevant to measurement educators who are interested in the variability of understanding and use of the four building blocks in the Constructing Measures framework (Wilson, 2005). It proposes a uni-dimensional structure for understanding Wilson’s framework, and explores the evidence for and against this conceptualization. Constructed and fixed choice response items are utilized to collect responses from 72 participants who range in experience and expertise with constructing measures. The data was scored by two raters and was analyzed with the Rasch partial credit model using ConQuest (1998). Guided by the 1999 Testing Standards, analyses of validity and reliability …

Bringing Home The Trash: Do Differences In Foraging Lead To Increased Plastic Ingestion In Laysan Albatrosses?, L C. Young, C Vanderlip, D C. Duffy, V Afanasyev, Scott A. Shaffer

Scott A. Shaffer

When searching for prey, animals should maximize energetic gain, while minimizing energy expenditure by altering their movements relative to prey availability. However, with increasing amounts of marine debris, what once may have been ‘optimal’ foraging strategies for top marine predators, are leading to sub-optimal diets comprised in large part of plastic. Indeed, the highly vagile Laysan albatross (Phoebastria immutabilis) which forages throughout the North Pacific, are well known for their tendency to ingest plastic. Here we examine whether Laysan albatrosses nesting on Kure Atoll and Oahu Island, 2,150 km apart, experience different levels of plastic ingestion. Twenty two geolocators were …