QUBES will have scheduled maintenance work beginning on Wednesday, June 26, 2024, 4pm ET/1pm PT. The platform will operate normally for most of the day, except for an extended outage period lasting no more than 4 hours. All running tool sessions will expire during the maintenance window. Please plan accordingly and we do apologize for any inconvenience. close

Text Search:
Applied Filters
    Doubling Time of Tumors
    This module introduces the calculation of potential doubling time of tumorous cells in the context of understanding the growth of a population of the cells. It is intended for an introductory...
    915

    views

    167

    downloads

    0

    comments

    0

    adaptations

    Metabolism for Energy and the Respiratory Quotient
    This module introduces the respiratory quotient in the context of understanding how metabolism is affected by environmental conditions. It is intended for an introductory biology audience.
    575

    views

    170

    downloads

    0

    comments

    0

    adaptations

    Cell Aggregation and Sphere Packing
    This module introduces the calculation of packing density in the context of understanding cell aggregation and arrangement. It is intended for an introductory biology audience.
    927

    views

    185

    downloads

    0

    comments

    0

    adaptations

    Water Movement through a Membrane: The Van't Hoff Equation
    This module introduces the van't Hoff equation in the context of understanding the metabolic activity of the epithelial cells lining the stomach. It is intended for an introductory biology audience.
    948

    views

    172

    downloads

    0

    comments

    0

    adaptations

    Cell Division and the Presence of a Growth Factor
    This module introduces exponential growth, the Michaelis-Menten, and Lineweaver-Burk equations in the context of understanding how growth factors influence cell division. It is intended for an...
    784

    views

    168

    downloads

    0

    comments

    0

    adaptations

    The Perfect Brew: An Activity Demonstrating Cell Counting and Hemocytometer Use
    In this activity, students will explore the use of a hemocytometer for counting cells, demonstrate the relationship between the grid seen in the microscope with volume of liquid in suspension and...
    1142

    views

    563

    downloads

    0

    comments

    0

    adaptations

    Cell Division and Rates of Population Growth
    This module introduces the exponential growth of cells in the context of understanding cell division. It is intended for an introductory biology audience.
    1048

    views

    189

    downloads

    0

    comments

    0

    adaptations

    Mitotic Index and Cell Division
    This module introduces the mitotic index in the context of understanding the dynamics of cell division in the root of a plant. It is intended for an introductory biology audience.
    1010

    views

    303

    downloads

    1

    comments

    0

    adaptations

    The Perfect Brew: An Activity Demonstrating Cell Counting and Hemocytometer Use
    In this activity, students will explore the use of a hemocytometer for counting cells, demonstrate the relationship between the grid seen in the microscope with volume of liquid in suspension and...
    1840

    views

    1168

    downloads

    0

    comments

    1

    adaptations

    Nucleoplasmic Index
    This module introduces the nucleoplasmic index in the context of understanding how the volume of organelles and cell contents change during the cell cycle. It is intended for an introductory...
    1642

    views

    272

    downloads

    0

    comments

    0

    adaptations

    Teaching Notes for Implementation of Gene Expression in Stem Cells
    Teaching notes for implementing Data Nugget: Gene Expression in Stem Cells in a introductory biology lab.
    2985

    views

    6912

    downloads

    0

    comments

    0

    adaptations

    Nastic Movements in Plants
    This module introduces an osmotic model in the context of understanding plants' capability of rapidly adapting to changes in their environment. It is intended for an introductory biology audience.
    1009

    views

    190

    downloads

    0

    comments

    0

    adaptations

    Bioimage Informatics Activity
    Students use basic bioimage informatics techniques to acquire quantitative data from images of cultured cells and test a hypothesis about the effect of a genetic mutation on cellular phenotypes
    1344

    views

    1102

    downloads

    0

    comments

    0

    adaptations

    Hemoglobin Evolution
    This module introduces equations describing blood viscosity and oxygen transport in the context of understanding the evolution of red blood cells. It is intended for an introductory biology audience.
    951

    views

    167

    downloads

    0

    comments

    0

    adaptations

    Online Adaptation of the Cell Engineer/Detective Lesson
    One of the most fundamental themes of biology is the relationship between structure and function, which is particularly evident when it comes to cells; however, the traditional cartoon depictions...
    1499

    views

    312

    downloads

    0

    comments

    0

    adaptations

    Making “sense” out of surface area to volume relationships
    Using a multimodal approach, the non-linear aspect of the surface area to volume relationship is explored. Students use their their senses of taste and sight to determine how smaller cells and...
    329

    views

    210

    downloads

    0

    comments

    0

    adaptations

    2002-Patrick_Nelson-Alan_Perelson-Mathematical_analysis_of_delay_differential _equation_models_of_HIV-1_infection
    Models of HIV-1 infection that include intracellular delays are more accurate representations of the biology and change the estimated values of kinetic parameters when compared to models without...
    84

    views

    26

    downloads

    0

    comments

    0

    adaptations

    2002-Nelson-Perelson-Mathematical analysis of delay differential equations models of HIV-1 infection
    We develop and analyze a set of models that include intracellular delays, combination antiretroviral therapy, and the dynamics of both infected and uninfected T cells.
    141

    views

    42

    downloads

    0

    comments

    0

    adaptations

    Cell Biology by the Numbers
    Vignettes that reveal how numbers serve as a sixth sense to understanding our cells
    1260

    views

    223

    downloads

    0

    comments

    0

    adaptations

    A virtual laboratory on cell division using a publicly-available image database
    Cell division is a key concept in cell biology. While there are many popular activities to teach students the stages of mitosis, most make use of simple schematics, cartoons, or textbook diagrams....
    11027

    views

    1666

    downloads

    2

    comments

    0

    adaptations