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Analysis of the anaerobic digestion metagenome under prophage-inducing stressors
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CC BY
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"In the absence of oxygen, some prokaryotes can degrade organic matter via anaerobic digestion. This occurs in natural settings, like wetlands, and industrial ones, like wastewater treatment or biogas production. But what about viruses? Bacteriophages can impact their hosts’ community structure through selective pressure and have been used to influence microbial communities, such as through pathogen control. A recent study examined the virome of anaerobic digestion communities undergoing prophage- inducing environmental stresses. The virome was almost entirely composed of tailed bacteriophages of the order Caudovirales. Metagenome reconstruction revealed 1,092 viral genomes and 120 prokaryotic genomes, and over half of the prokaryotic genomes contained a provirus in their genomic sequence. In general, species of viruses and prokaryotes could be grouped by having similar reactions to stressors. Archaea had the most pronounced reactions to stressors and featured behaviors unique to those species..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Biology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
04/14/2023
Atmospheric Oxygen
Read the Fine Print
Educational Use
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In this feature, adapted from Interactive NOVA: "Earth," students explore the relationship between oxygen concentration and the well-being of various organisms by simulating a change in oxygen levels and observing what happens.

Subject:
Geoscience
Life Science
Physical Science
Material Type:
Activity/Lab
Interactive
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
09/26/2003
Biology
Unrestricted Use
CC BY
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Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

Subject:
Biology
Life Science
Material Type:
Full Course
Provider:
Rice University
Provider Set:
OpenStax College
Date Added:
08/22/2012
Biology, Animal Structure and Function, The Respiratory System, Gas Exchange across Respiratory Surfaces
Conditional Remix & Share Permitted
CC BY-NC
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By the end of this section, you will be able to:Name and describe lung volumes and capacitiesUnderstand how gas pressure influences how gases move into and out of the body

Subject:
Applied Science
Biology
Life Science
Material Type:
Module
Date Added:
07/10/2017
Breathe In, Breathe Out
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Educational Use
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Students are introduced to the respiratory system, the lungs and air. They learn about how the lungs and diaphragm work, how air pollution affects lungs and respiratory functions, some widespread respiratory problems, and how engineers help us stay healthy by designing machines and medicines that support respiratory health and function.

Subject:
Anatomy/Physiology
Applied Science
Engineering
Life Science
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denise W. Carlson
Jay Shah
Malinda Schaefer Zarske
Date Added:
09/18/2014
Breathing Cells
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Educational Use
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Students use a simple pH indicator to measure how much CO2 is produced during respiration, at rest and after exercising. They begin by comparing some common household solutions in order to determine the color change of the indicator. They review the concepts of pH and respiration and extend their knowledge to measuring the effectiveness of bioremediation in the environment.

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Janet Yowell
Kaelin Cawley
Malinda Schaefer Zarske
Date Added:
10/14/2015
Earth's Atmosphere: Composition and structure
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Educational Use
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This module explores the composition of the earth's atmosphere, how temperature and pressure vary in the atmosphere, and the scientific developments that led to an understanding of these basic concepts.

Subject:
Astronomy
Atmospheric Science
Chemistry
Education
Geology
Geoscience
Physical Science
Physics
Space Science
Material Type:
Interactive
Unit of Study
Provider:
UCAR Staff
Provider Set:
Visionlearning
Author:
Anne Egger
Date Added:
10/31/2003
Engineering and the Periodic Table
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Educational Use
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Students learn about the periodic table and how pervasive the elements are in our daily lives. After reviewing the table organization and facts about the first 20 elements, they play an element identification game. They also learn that engineers incorporate these elements into the design of new products and processes. Acting as computer and animation engineers, students creatively express their new knowledge by creating a superhero character based on of the elements they now know so well. They will then pair with another superhero and create a dynamic duo out of the two elements, which will represent a molecule.

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Brian Kay
Denise W. Carlson
Lauren Cooper
Malinda Schaefer Zarske
Megan Podlogar
Date Added:
10/14/2015
Erythrocytes
Only Sharing Permitted
CC BY-NC-ND
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Also known as red blood cells (RBCs). Erythrocytes deliver oxygen to, and remove carbon dioxide from tissues. Erythrocytes are derived from the stem cell (CFU-GEMM) and formed in a process known as erythropoiesis.

Subject:
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
WikiVet
Provider Set:
Blood
Date Added:
02/11/2015
Garden Science: CHNOPS
Conditional Remix & Share Permitted
CC BY-NC
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In this 8th grade science lesson, students review the six essential elements of life and discuss how they function in the garden.

Material Type:
Activity/Lab
Date Added:
02/12/2014
Gas Exchange across Respiratory Surfaces
Conditional Remix & Share Permitted
CC BY-NC-SA
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Revised for Human Gas Exchange and simplified somewhat.By the end of this section, you will be able to:Name and describe lung volumes and capacitiesUnderstand how gas pressure influences how gases move into and out of the body

Subject:
Applied Science
Biology
Life Science
Material Type:
Module
Author:
Tina B. Jones
Date Added:
07/24/2019
Got Dirty Air?
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Educational Use
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This lesson introduces students to the concepts of air pollution and technologies that have been developed by engineers to reduce air pollution. Students develop an understanding of visible air pollutants with an incomplete combustion demonstration, a "smog in a jar" demonstration, construction of simple particulate matter collectors and by exploring engineering roles related to air pollution. Next, students develop awareness and understanding of the daily air quality and trends in air quality using the Air Quality Index (AQI) listed in the newspaper. Finally, students build and observe a variety of simple models in order to develop an understanding of how engineers use these technologies to clean up and prevent air pollution.

Subject:
Applied Science
Atmospheric Science
Engineering
Physical Science
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Amy Kolenbrander
Janet Yowell
Jessica Todd
Malinda Schaefer Zarske
Date Added:
09/18/2014
Helium Is Boring
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Educational Use
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In this video adapted from the National Science Center, observe a demonstration to discover how helium gas is inert and hydrogen gas is reactive.

Subject:
Chemistry
Physical Science
Physics
Material Type:
Lecture
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
08/09/2007
Hydrogen-Oxygen Reaction Lab
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Educational Use
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This lab exercise exposes students to a potentially new alternative energy source hydrogen gas. Student teams are given a hydrogen generator and an oxygen generator. They balance the chemical equation for the combustion of hydrogen gas in the presence of oxygen. Then they analyze what the equation really means. Two hypotheses are given, based on what one might predict upon analyzing the chemical equation. Once students have thought about the process, they are walked through the experiment and shown how to collect the gas in different ratios. By trial and error, students determine the ideal combustion ratio. For both volume of explosion and kick generated by explosion, they qualitatively record results on a 0-4 scale. Then, students evaluate their collected results to see if the hypotheses were correct and how their results match the theoretical equation. Students learn that while hydrogen will most commonly be used for fuel cells (no combustion situation), it has been used in rocket engines (for which a tremendous combustion occurs).

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Courtney Herring
Stephen Dent
Date Added:
09/18/2014
Life Before Oxygen
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Educational Use
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Three billion years ago single-celled underwater bacteria used sunlight to convert carbon dioxide and water into tiny oxygen bubbles. Soon plants were turning an atmosphere full of volcanic carbon dioxide into oxygen. As we learn in this video segment from Interactive NOVA: "Earth," photosynthesis created a good home for animals and humans, though not for some primitive organisms. They had to retreat to where oxygen couldn't reach them. Join researchers as they search for these organisms, now considered tiny time capsules from a time before there was oxygen on Earth.

Subject:
Chemistry
Physical Science
Material Type:
Activity/Lab
Provider:
PBS LearningMedia
Provider Set:
Teachers' Domain
Author:
WGBH Educational Foundation
Date Added:
12/17/2005
Mangrove Forests
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Where the tropical ocean meets the sea, a peculiar kind of plant thrives in shallow, salty water. These mangrove plants are incredibly important for shoreline protection and baby fish habitats. In this video, Jonathan investigates life in mangroves by visiting both Caribbean and Pacific mangroves. Please see the accompanying study guide for educational objectives and discussion points.

Subject:
Chemistry
Geoscience
Life Science
Oceanography
Physical Science
Material Type:
Diagram/Illustration
Lesson Plan
Provider:
Jonathan Bird's Blue World
Provider Set:
Jonathan Bird's Blue World
Author:
Jonathan Bird Productions
Oceanic Research Group
Date Added:
05/05/2010
Marine Chemistry
Conditional Remix & Share Permitted
CC BY-NC-SA
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This course is an introduction to chemical oceanography. It describes reservoir models and residence time, major ion composition of seawater, inputs to and outputs from the ocean via rivers, the atmosphere, and the sea floor. Biogeochemical cycling within the oceanic water column and sediments, emphasizing the roles played by the formation, transport, and alteration of oceanic particles and the effects that these processes have on seawater composition. Cycles of carbon, nitrogen, phosphorus, oxygen, and sulfur. Uptake of anthropogenic carbon dioxide by the ocean. Material presented through lectures and student-led presentation and discussion of recent papers.

Subject:
Applied Science
Atmospheric Science
Engineering
Oceanography
Physical Science
Material Type:
Full Course
Provider:
MIT
Provider Set:
MIT OpenCourseWare
Author:
Casciotti, Karen
Doney, Scott
Martin, William
Tivey, Meg
Toole, Dierdre
Date Added:
09/01/2006