You are here: Home / Resources / Browse Resources

Open. Adaptable. Free.

Resources created by our members and partners.

The QUBES platform hosts hundreds of teaching materials, reference materials, and cloud-based software free to use and adapt using open Creative Commons licenses.

Text Search:
Applied Filters
    Web Popgen
    A Hardy-Weinberg simulation program.

    Keywords: Hardy-Weinbergpopulation geneticscomputer simulationsGenetic DriftmutationNatural Selection

    2145

    views

    353

    downloads

    0

    comments

    0

    adaptations

    2003-Givens-Bonfima-Direct observation of normal modes in coupled oscillators
    We propose a simple and inexpensive method to directly observe each normal mode of a system of coupled oscillators, as well as to measure its corresponding frequency, without performing Fourier...

    Keywords: frequencyresonancecoupled oscillator

    110

    views

    54

    downloads

    0

    comments

    0

    adaptations

    4-050-ResonanceBeats-ModelingScenario
    We study what can happen when a pure oscillator (no damper) is driven by a forced vibration function which has the same or close to the same natural frequency as the system it is driving.

    Keywords: Spring 2020 workshopvibrationtuningdriverresonanceforced vibrationundampedbeatsnaturl frequency

    223

    views

    209

    downloads

    0

    comments

    0

    adaptations

    2008-Keith_Landry-Brian_Winkel-Peak_Frequency_Responses_and_Tuned_Mass_Dampers
    We present two applications of systems of ordinary differential equations concerning excitation of a structure through resonance and (1) peak frequency responses with stabilization of the...

    Keywords: vibrationresonancetuned mass damperpeak frequency responseexcitation

    172

    views

    40

    downloads

    0

    comments

    0

    adaptations

    Spectral Seismology Module (Project EDDIE)
    Based on a conceptual presentation of waveforms and filters

    Keywords: Project EDDIE

    1397

    views

    336

    downloads

    0

    comments

    1

    adaptations

    3-105-FrequencyResponse-ModelingScenario
    We describe the frequency response to a second order differential equation with a driving function as the maximum steady state solution amplitude and perform some analyses in this regard.

    Keywords: transient dynamicscircuitspring massdriverfrequency responseamplitudesteady state

    259

    views

    208

    downloads

    0

    comments

    0

    adaptations

    4-023-MysteryCircuit-ModelingScenario
    Students to build a system of differential equations which model a circuit. We give each student a unique input voltage frequency parameter and ask for system response (gain) to that input as a...

    Keywords: filterscircuitRLC circuitKirchhoffvoltagegaindriver

    833

    views

    690

    downloads

    0

    comments

    0

    adaptations

    Politeness Data
    The dataset recorded properties of formal and informal speech registers in Korean.

    Keywords: linguistics

    1207

    views

    470

    downloads

    0

    comments

    0

    adaptations

    2010-Keesom-EtAl-Fishing for Answers Investigating Sustainable Harvesting Ra
    The purpose of this report is to determine and propose a model by which an optimal harvesting frequency can be determined to maintain a steady population of Alaskan salmon.

    Keywords: fisheriesEuler's methodnonlinearlogistic harvestingcanabalismsalmon

    145

    views

    76

    downloads

    0

    comments

    0

    adaptations

    1989-R_Blickhan-Spring Mass Model For Running-Hopping
    A simple spring—mass model consisting of a massless spring attached to a point mass describes the interdependency of mechanical parameters characterizing running and hopping of humans as a function...

    Keywords: spring massjumpjumping

    156

    views

    61

    downloads

    0

    comments

    0

    adaptations

    2018-Weber_Theers_Surmann_Ligges_Weihs-Sensitivity Analysis_of_Ordinary_Differential_Equation_Models
    This report will focus on the sensitivity analysis of ordinary differential equation (ODE) models since they can be used to model so-called Low Frequency Oscillations (LFOs).

    Keywords: sensitivityregressionparameter estimationsystemlow frequency oscillationsoscillations

    165

    views

    51

    downloads

    0

    comments

    0

    adaptations

    1-096-OP-AMP-Differentiator-ModelingScenario
    The output waveform (function) of a operational amplifier type of differentiator circuit is determined analytically from the first order governing ordinary differential equation and compared with...

    Keywords: simulationMeasurementfeedbackMultisimcircuitvoltageoperational amplifiervalidationSPICE

    479

    views

    403

    downloads

    0

    comments

    0

    adaptations

    9-012-PDEGuitarTuning-ModelingScenario
    We lead students through a derivation of a partial differential equation which models the motion of a string held at both ends, a case of the one-dimensional wave equation, and then play it on...

    Keywords: extensionsine wavesfrequencyguitardampingFourierstringtuning

    319

    views

    205

    downloads

    0

    comments

    0

    adaptations

    Natural Selection and Galápagos Finches
    A worksheet and accompanying data set that guides students through making and interpreting frequency distributions, selection differentials, and fitness functions.

    Keywords: EvolutionResources @ HHMI - BioInteractive

    2852

    views

    1997

    downloads

    0

    comments

    0

    adaptations

    Spreadsheet Tutorial 5: Histogram
    Generate a histogram using a variety of methods.

    Keywords: Resources @ HHMI - BioInteractiveScientific ProcessStatistics and MathScientific MethodologyHigh School

    1360

    views

    402

    downloads

    0

    comments

    0

    adaptations

    Effect of Florida Surface Temperatures Over The Past Four Decades on the Frequency and Intensity of Florida Hurricanes and Tropical Storms
    Tropical storms and hurricanes bring strong winds and heavy rainfall with the capability of destroying entire cities when these storms break landfall. Warm ocean waters are required to produce...

    Keywords: hurricane

    1453

    views

    597

    downloads

    0

    comments

    0

    adaptations

    Maintenance of Phenotypic Polymorphism and a Scientist Spotlight Featuring Dr. Swanne Gordon
    In this lesson students interpret graphical evidence of frequency-dependent selection in the wood tiger moth, then make long-term evolutionary predictions. They then read and reflect on an...
    885

    views

    318

    downloads

    0

    comments

    0

    adaptations

    Exploring Fitness and Population Change under Selection: Avida-Ed Lab Book Exercise 3
    An introductory activity exploring the process of natural selection in action using the Avida-ED simulation.

    Keywords: population geneticsfitnessavida-edsoftware simulationsSelectionevolutionary fitness

    2934

    views

    1928

    downloads

    0

    comments

    0

    adaptations

    Lake Mixing Module (Project EDDIE)
    Students explore spatial and temporal patterns of lake mixing using high-frequency temperature data from lakes around the world.

    Keywords: stratificationProject EDDIE

    1177

    views

    312

    downloads

    0

    comments

    0

    adaptations

    Birthday Problem and Class Phenotypic Probabilities
    An Excel workbook exploring two related applications, the Birthday Problem and Class Phenotypic Probabilities. Students enter their own phenotypes into the workbook.

    Keywords: phenotypic probabilityallelic frequency

    1213

    views

    252

    downloads

    0

    comments

    0

    adaptations

    Close

    Home

    Search