This resource is a video abstract of a research paper created by …
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:
"HIV infection remains unacceptably common among women in sub-Saharan Africa. One possible contributing factor is the composition of the vaginal microbiota, as African, Caribbean and other Black (ACB) women have an increased rate of bacterial vaginosis (BV), which is associated with increased HIV risk. Targeting the vaginal microbiota and treating BV could help prevent HIV among women. In the absence of BV, the vaginal microbiota is predominated by one of several _Lactobacillus_ species that provide different levels of BV and HIV protection. _L. crispatus_ is associated with exclusion of BV-associated bacteria and reduced HIV risk while _L. iners_, the most common species among ACB women, seems less protective. The reduced protection provided by _L. iners_ is supported by genomic differences, such as the absence of a gene encoding an HIV-trapping D-lactate isomer and the presence of genes encoding pro-inflammatory cytotoxins..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
This activity features a problem set designed to make students think carefully …
This activity features a problem set designed to make students think carefully about the link between phase diagrams and textures.
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In this activity students work through a binary eutectic phase diagram in …
In this activity students work through a binary eutectic phase diagram in small groups and try to determine a set of generalizations that explain the behavior of such systems (e.g., "the first liquid produced upon heating is always the eutectic composition").
(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)
This is a Introduction to microbiology course. The content of this module …
This is a Introduction to microbiology course. The content of this module is syllabus as well as powerpoint slides presentation, using OpenStax Microbiology textbook. Content uploaded by Joanna Gray. All content created by Jaleh E. Jalili
Students act as if they are biological engineers following the steps of …
Students act as if they are biological engineers following the steps of the engineering design process to design and create protein models to replace the defective proteins in a child’s body. Jumping off from a basic understanding of DNA and its transcription and translation processes, students learn about the many different proteins types and what happens if protein mutations occur. Then they focus on structural, transport and defense proteins during three challenges posed by the R&D; bio-engineering hypothetical scenario. Using common classroom supplies such as paper, tape and craft sticks, student pairs design, sketch, build, test and improve their own protein models to meet specific functional requirements: to strengthen bones (collagen), to capture oxygen molecules (hemoglobin) and to capture bacteria (antibody). By designing and testing physical models to accomplish certain functional requirements, students come to understand the relationship between protein structure and function. They graph and analyze the class data, then share and compare results across all teams to determine which models were the most successful. Includes a quiz, three worksheets and a reference sheet.
BioNook is Whitehead Institute’s online biology resource, offering exciting learning enrichment for …
BioNook is Whitehead Institute’s online biology resource, offering exciting learning enrichment for students, parents and teachers. Find videos, podcasts and stories on Whitehead Institute Science, as well as virtual workshop opportunities through BioNook’s After School Science Club, and ideas for nature-based activities. Explore free materials on biology and research—from deep explorations of how science is done, to stories following the lives of scientists, to suggestions for fun outside activities and hands-on citizen science projects.
Patterns of diversity, ecology, and evolutionary biology. Emphasis is on the Tree …
Patterns of diversity, ecology, and evolutionary biology. Emphasis is on the Tree of Life and how its members are distributed and interact. Partial Course.
Satellite observations that detect and map fires provide important insight into the …
Satellite observations that detect and map fires provide important insight into the widespread nature of fire activity around the world. This visualization, which shows global satellite observations of fires in 2002 and 2003, goes on to focus on a region where fire plays a dominant role in the landscape: Southern California. The wildfires that roared through Southern California in the autumns of 2003 and 2007 were particularly fast-burning and destructive because people have actively suppressed fires in the region where residential development is expanding further and further into wild land areas.
Build figures, presentations, and illustrations with 2,000+ science and medical art visuals. …
Build figures, presentations, and illustrations with 2,000+ science and medical art visuals. This collection of high-quality, scientifically accurate vectors, icons, and brushes is freely available within the public domain.
Have you ever asked what “biobased” means or wondered about the key …
Have you ever asked what “biobased” means or wondered about the key aspects in developing and commercializing biobased products? This course will answer those questions and more; highlighting the opportunities, hurdles, and driving forces of the bioeconomy.
Today’s industries face enormous global challenges when it comes to the fossil-based economy. Fossil resources are no longer a desirable feedstock for many products and governments’ climate goals put various limitations to its usage. Moreover, consumer perception has become an increasingly important factor. With biobased products as an alternative to the fossil-based economy, the bioeconomy can provide viable solutions to these challenges.
The course describes the different types of biomass, the methods of refinery and typical conversion technologies used for biobased products. You’ll also engage in a study of the practical and real-life examples emerging in the market: biopolymers, bioenergy, bioflavours, and biosurfactants.
The course has been developed by a team of experts from seven different institutions and universities in three different countries, all sharing their personal perspectives on the opportunities and challenges faced by the biobased industry. The three top-ranked institutions Delft University of Technology, RWTH Aachen University, and Wageningen University & Research offer additional, more advanced courses to continue your learning journey:
Industrial Biotechnology: a more advanced course that digs deeper into engineering aspects of bio-based products. MicroMasters Chemistry and Technology for Sustainability: Help drive the transition from fossil sources to renewable energy ones and engineer a biobased future. Sustainable Development: The Water-Energy-Food Nexus: Introduction to sustainable development and its relation to the Water-Energy-Food Nexus.
Although we've spent a lot of time in this series looking at …
Although we've spent a lot of time in this series looking at human-made organic chemicals, the term "organic chemistry" was originally used to describe molecules isolated from living things. In this episode of Crash Course Organic Chemistry, we're going back to our roots to learn more about the best synthetic chemists: living things. We'll look at the biochemical building blocks of life from the nitrogenous bases, sugars, and phosphate groups that make up DNA and RNA, to amino acids and lipids, and we'll learn how to convert between Fischer and Haworth projections of carbohydrates.
This course focuses on the interaction of chemical engineering, biochemistry, and microbiology. …
This course focuses on the interaction of chemical engineering, biochemistry, and microbiology. Mathematical representations of microbial systems are featured among lecture topics. Kinetics of growth, death, and metabolism are also covered. Continuous fermentation, agitation, mass transfer, and scale-up in fermentation systems, and enzyme technology round out the subject material.
We are happy to welcome you to our second Open Educational Resource …
We are happy to welcome you to our second Open Educational Resource (OER) textbook, Biochemistry Free For All. Biochemistry is a relatively young science, but its rate of growth has been truly impressive. The rapid pace of discoveries, which shows no sign of slowing, is reflected in the steady increase in the size of biochemistry textbooks. Growing faster than the size of biochemistry books have been the skyrocketing costs of higher education and the even faster rising costs of college textbooks. These unfortunate realities have created a situation where the costs of going to college are beyond the means of increasing numbers of students.
The course, which spans two thirds of a semester, provides students with …
The course, which spans two thirds of a semester, provides students with a research-inspired laboratory experience that introduces standard biochemical techniques in the context of investigating a current and exciting research topic, acquired resistance to the cancer drug Gleevec. Techniques include protein expression, purification, and gel analysis, PCR, site-directed mutagenesis, kinase activity assays, and protein structure viewing. This class is part of the new laboratory curriculum in the MIT Department of Chemistry. Undergraduate Research-Inspired Experimental Chemistry Alternatives (URIECA) introduces students to cutting edge research topics in a modular format. Acknowledgments Development of this course was funded through an HHMI Professors grant to Professor Catherine L. Drennan.
This course considers the process of neurotransmission, especially chemicals used in the …
This course considers the process of neurotransmission, especially chemicals used in the brain and elsewhere to carry signals from nerve terminals to the structures they innervate. We focus on monoamine transmitters (acetylcholine; serotonin; dopamine and norepinephrine); we also examine amino acid and peptide transmitters and neuromodulators like adenosine. Macromolecules that mediate neurotransmitter synthesis, release, inactivation and receptor-mediated actions are discussed, as well as factors that regulate their activity and the second-messenger systems and ion fluxes that they control. The involvement of particular neurotransmitters in human diseases is considered.
Biodiversity Loss in the Age of the Sixth Mass Extinction was co-authored …
Biodiversity Loss in the Age of the Sixth Mass Extinction was co-authored by undergraduate students at Worcester Polytechnic Institute (USA) while exploring issues of extinction and conservation of biodiversity. The book highlights key interests and insights of current students in their quest to create a better world.
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