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:
"The rapid spread of antimicrobial resistance (AMR) is a growing public health and environmental problem, except, presumably, in remote regions like Antarctica. Antarctica is considered the most pristine continent because of its minimal human activity confined to specific research stations, so it’s an ideal location to study the early mechanisms of AMR acquisition. Existing evidence suggests that although human gut bacteria have colonized native wildlife around research stations, AMR in birds and seals is minimal. However, the research so far has been limited, and the standards and methods used have varied widely. In addition, much of the continent remains unsampled, making a comprehensive AMR assessment impossible. Implementation of continent-wide standards for AMR reporting would help future studies produce meaningful and comparable results that can be used to understand AMR acquisition in other regions of the globe..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
Has your attention recently been caught by news of coastal catastrophes such …
Has your attention recently been caught by news of coastal catastrophes such as hurricanes and tsunamis? Do you wonder why so many coastal communities in the world are vulnerable to flooding and other coastal hazards? Have you considered what coastal flood protections cities like Houston and Miami will need in the future to protect their residents? This course will provide a better understanding of these phenomena. We present a global perspective of coastal landscapes, the geologic processes responsible for their formation, and ways that society responds to hazards like sea level rise and catastrophic weather events. You will participate in active learning exercises such as analyzing real-world datasets and applying critical thinking to real-world societal problems while investigating a coastal community.
Students design and build model landfills using materials similar to those used …
Students design and build model landfills using materials similar to those used by engineers for full-scale landfills. Their completed small-size landfills are "rained" on and subjected to other erosion processes. The goal is to create landfills that hold the most garbage, minimize the cost to build and keep trash and contaminated water inside the landfill to prevent it from causing environmental damage. Teams create designs within given budgets, test the landfills' performance, and graph and compare designs for capacity, cost and performance.
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:
"Coral reefs are important ocean ecosystems. However, they have been declining in recent years due to human activities, including elevated nitrate in the water. Corals maintain complex relationships with numerous microbes, including the dinoflagellate algae Symbiodiniaceae and bacteria. To better understand the impact of nitrate on coral and their resident microbes, researchers recently examined coral and microbial gene expression changes in larval Pocillopora damicornis. Under elevated nitrate conditions, the Symbiodiniaceae algae generally hoarded more nutrients for its own growth. Normally Symbiodiniaceae share nutrients with the coral, so this was a shift from a mutualistic relationship to a parasitic one, which led to impaired development in the larval coral. However, the prokaryotic microbes might reduce this negative interaction by restraining Symbiodiniaceae growth, which partially restores coral larval development..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
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:
"Antibiotic-resistant bacterial infections have become a public health crisis. Their incidence has increased in the past decades, driven by the acquisition of antibiotic resistance genes (ARGs), but how these ARGs are acquired by bacteria in the environment is not completely known. Human interaction with the environment can spread resistant bacteria, further influencing the antibiotic resistance properties of environmental microbes. In a new study, researchers sought to characterize how human activities influence the environmental “resistome.” They surveyed the microbiome, resistome, and mobilome of planktonic microbial communities in the Han River. The study was extensive, with samples spanning the length of the river over three seasons. Using integrative metagenomic analyses, they found that fecal contamination from humans influenced the resistome in densely populated areas of the river, but interestingly, fecal bacteria weren’t the main factor influencing the ARG increase..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
Lessons teach core knowledge about the science of climate change, explore conflicting …
Lessons teach core knowledge about the science of climate change, explore conflicting views, and integrate critical thinking skills. Students will apply knowledge of climate change to a rigorous analysis of media messages through asking and answering questions about accuracy, currency, credibility, sourcing, and bias. Lessons address basic climate science, the causes of climate change, scientific debate and disinformation, the consequences of global warming, the precautionary principle, carbon footprints, moral choices, and the history of global warming in media, science, and politics.
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:
"Human activity is driving an increase in the amount of atmospheric reactive nitrogen. California grassland growth is typically limited by the amount of available nitrogen. Thus, more available nitrogen leads to more plant biomass, which means more carbon is deposited in the soil. Both the increase in nitrogen itself and the increase in carbon affect soil microbes. To better understand these impacts, a recent study examined microbial metabolic functioning in experimental grassland plots in California. These plots had been maintained for 14 years with increased nitrogen deposition mimicking the predicted levels for the end of the 21st century. This increased deposition led to an increased abundance of fast-growing bacterial species, as well as an increased capacity to use easily accessible, or labile, carbon sources. In contrast, the community's capacity to degrade recalcitrant carbon sources was unchanged or even decreased by elevated nitrogen..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
Students experience the steps of the engineering design process as they design …
Students experience the steps of the engineering design process as they design solutions for a real-world problem that could affect their health. After a quick review of the treatment processes that municipal water goes through before it comes from the tap, they learn about the still-present measurable contamination of drinking water due to anthropogenic (human-made) chemicals. Substances such as prescription medication, pesticides and hormones are detected in the drinking water supplies of American and European metropolitan cities. Using chlorine as a proxy for estrogen and other drugs found in water, student groups design and test prototype devices that remove the contamination as efficiently and effectively as possible. They use plastic tubing and assorted materials such as activated carbon, cotton balls, felt and cloth to create filters with the capability to regulate water flow to optimize the cleaning effect. They use water quality test strips to assess their success and redesign for improvement. They conclude by writing comprehensive summary design reports.
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:
"The Paris Agreement, signed on the run-up to the hottest 3-year period on record, is humankind’s best bet at fighting climate change. The Agreement set a goal of holding the global average temperature to below 2°C above preindustrial levels. But while setting that mark was a promising start to halting global warming, it has appeared to invite more questions than it has answered: How much climate change is actually caused by human activity? How much of it is simply due to natural changes in our planet? To resolve that confusion, an international team of researchers set out to decouple natural from human-induced causes of global warming. Every factor contributing to climate change, natural or otherwise, leaves a distinct fingerprint across the planet’s entire historical temperature record. Increases in greenhouse gases in the atmosphere, for example, cause the planet to warm up. Whereas volcanic eruptions, which spew sunlight-blocking ash and other material into the air, tend to cool it down..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
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