Related Experiment Video
Updated: Nov 29, 2025
10:34
Measurement of In Vitro Integration Activity of HIV-1 Preintegration Complexes
Published on: February 22, 2017
7.8K
The Year of I Don't Know
1University of California San Diego Moores Cancer Center.
Clinical Journal of Oncology Nursing
|November 20, 2020
Summary
The year 2020 presented unprecedented challenges and widespread uncertainty across all aspects of life. Navigating this complex period required constant adaptation and a willingness to confront the unknown.
Area of Science:
- Social Sciences
- Psychology
- Sociology
Background:
- The year 2020 was marked by global events leading to widespread uncertainty.
- Individuals frequently encountered situations prompting expressions of "I don't know."
Purpose of the Study:
- To document and categorize the types of situations that evoked uncertainty in 2020.
- To provide a reflective overview of the challenges and unknowns of the year.
Main Methods:
- Qualitative analysis of anecdotal experiences.
- Thematic categorization of reported "unknowns".
Main Results:
- Identification of recurring themes of uncertainty in personal, professional, and societal contexts.
- Examples illustrating the pervasiveness of "I don't know" scenarios.
Conclusions:
- The year 2020 was characterized by a high degree of unpredictability.
- Understanding these uncertainties is crucial for future preparedness and psychological resilience.
Related Concept Videos
01:22Generation Time
1.1K
Bacterial generation time, the period required for a bacterial population to double during its exponential growth phase, serves as a critical measure of microbial growth dynamics under optimal conditions. This parameter varies significantly across bacterial species and can be influenced by factors such as temperature, pH, and the availability of nutrients. For example, Escherichia coli can achieve a generation time of approximately 20 minutes, while Mycobacterium tuberculosis exhibits a much...
1.1K
01:13SI Units: 2019 Redefinition
2.8K
Measurement is an indispensable part of analytical chemistry. The result of measurement helps quantify a substance's physical property and compare it with the physical property of another substance. Each measurement comprises two components - a number indicating the magnitude and a unit of measurement as a standard for comparison. Further, the same quantity can be measured using different units of measurement, which leads to differences in magnitude.
A standard set of units has been defined...
A standard set of units has been defined...
2.8K
01:18Indeterminate Structure
1.1K
Indeterminate structures refer to structures where internal forces and reactions cannot be determined using only the equations of static equilibrium. Indeterminate structures have more unknown forces and reaction forces than equations of static equilibrium that can be used to determine them. Indeterminate structures are often used in engineering to create complex, efficient, and aesthetically pleasing structures. There are various types of indeterminate structures used in engineering and...
1.1K
01:29International System of Units
4.5K
The International System of Units, known as the SI system, is a universally accepted measurement system recognized and used worldwide. The SI system is based on a set of three base units considered absolute, and their values do not change with location. These base units are meters, kilograms, and seconds.
Prefixes are used to define both larger and smaller quantities in the SI system. For example, milli, micro, and nano define smaller quantities, while kilo, mega, and giga are used to define...
Prefixes are used to define both larger and smaller quantities in the SI system. For example, milli, micro, and nano define smaller quantities, while kilo, mega, and giga are used to define...
4.5K
01:02Degrees of Freedom
6.3K
The degree of freedom for a particular statistical calculation is the number of values that are free to vary. Thus, the minimum number of independent numbers can specify a particular statistic. The degrees of freedom differ greatly depending on known and uncalculated statistical components.
For example, suppose there are three unknown numbers whose mean is 10; although we can freely assign values to the first and second numbers, the value of the last number can not be arbitrarily assigned.
For example, suppose there are three unknown numbers whose mean is 10; although we can freely assign values to the first and second numbers, the value of the last number can not be arbitrarily assigned.
6.3K
00:56Interphase
7.6K
The cell cycle occurs over approximately 24 hours (in a typical human cell) and in two distinct stages: interphase, which includes three phases of the cell cycle (G1, S, and G2), and mitosis (M). During interphase, which takes up about 95 percent of the duration of the eukaryotic cell cycle, cells grow and replicate their DNA in preparation for mitosis.
Phases of Interphase
Following each period of mitosis and cytokinesis, eukaryotic cells enter interphase, during which they grow and replicate...
Phases of Interphase
Following each period of mitosis and cytokinesis, eukaryotic cells enter interphase, during which they grow and replicate...
7.6K