Browse Titles - 3 results
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How Does the Interplay of Genes, Environment, and Development Affect the Biological Diversity of a Species?
(Hamburg, Hamburg State: Latest Thinking, 2017), 7 mins
Plants, animals, and fungi show a huge diversity regarding form and phenotype: the observable characteristics of an organism. The research presented in this video uses the model of a particular roundworm to investigate how the phenotype is changed by the environment; this is known as phenotypic plasticity. RALF SO...
Open Access
(Hamburg, Hamburg State: Latest Thinking, 2017), 7 mins
Description
Plants, animals, and fungi show a huge diversity regarding form and phenotype: the observable characteristics of an organism. The research presented in this video uses the model of a particular roundworm to investigate how the phenotype is changed by the environment; this is known as phenotypic plasticity. RALF SOMMER explains that Pristionchus pacificus develops alternative mouth forms depending on their environment, either feeding on bacteria o...
Plants, animals, and fungi show a huge diversity regarding form and phenotype: the observable characteristics of an organism. The research presented in this video uses the model of a particular roundworm to investigate how the phenotype is changed by the environment; this is known as phenotypic plasticity. RALF SOMMER explains that Pristionchus pacificus develops alternative mouth forms depending on their environment, either feeding on bacteria or on other roundworms. By manipulating the worms’ genome, the researchers identified one gene which, if deactivated, results in animals that no longer develop the predatory mouth form. Theoretical biologists have been suggesting the existence of so-called developmental switch genes that determine which of several traits encoded in the genome of an individual is formed. Such genes had, however, not yet been identified. Further experiments revealed that this developmental switch is not constituted by one single gene but is part of a more complex genetic network.
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Field of Study
Environmental Studies
Content Type
Instructional material
Date Published / Released
2017
Publisher
Latest Thinking
Speaker / Narrator
Ralf J. Sommer, 1963-
Person Discussed
Ralf J. Sommer, 1963-
Topic / Theme
Genetic engineering, Scientific research, Genetics
Copyright Message
Copyright © 2017 Latest Thinking
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Phosphorus
presented by Rosanna Kleemann, fl. 2015; produced by University of Surrey (Surrey, England: University of Surrey, 2015), 3 mins
This thesis examines how too much phosphorus in water causes many problems. However, it is an important and dwindling compound. This research looks at how Thames Water is the first to recover the waste phosphorus from water sludge and return it into fertilizer.
Open Access
presented by Rosanna Kleemann, fl. 2015; produced by University of Surrey (Surrey, England: University of Surrey, 2015), 3 mins
Description
This thesis examines how too much phosphorus in water causes many problems. However, it is an important and dwindling compound. This research looks at how Thames Water is the first to recover the waste phosphorus from water sludge and return it into fertilizer.
Field of Study
Environmental Studies
Content Type
Lecture/presentation
Contributor
University of Surrey
Author / Creator
Rosanna Kleemann, fl. 2015
Date Published / Released
2015
Publisher
University of Surrey
Topic / Theme
Water supply, Scientific research
ORCID
0000-0001-9002-8960
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When Will Arctic Sea Ice Be Gone?
(Germany: Latest Thinking, 2017), 12 mins
The Arctic sea ice is the ice that is floating on the Arctic Ocean. In recent decades, this pack ice has been disappearing very rapidly. So the question arises when the Arctic sea ice will be completely gone. DIRK NOTZ has examined this using the Arctic summer sea ice in September as example. As he explains in thi...
Open Access
(Germany: Latest Thinking, 2017), 12 mins
Description
The Arctic sea ice is the ice that is floating on the Arctic Ocean. In recent decades, this pack ice has been disappearing very rapidly. So the question arises when the Arctic sea ice will be completely gone. DIRK NOTZ has examined this using the Arctic summer sea ice in September as example. As he explains in this video, his research group combined satellite observations with model simulations and found a clear linear correlation between the los...
The Arctic sea ice is the ice that is floating on the Arctic Ocean. In recent decades, this pack ice has been disappearing very rapidly. So the question arises when the Arctic sea ice will be completely gone. DIRK NOTZ has examined this using the Arctic summer sea ice in September as example. As he explains in this video, his research group combined satellite observations with model simulations and found a clear linear correlation between the loss of Arctic sea ice and carbon dioxide emissions. For each ton of CO2 we emit, we make about three square meters of Arctic sea ice disappear. From this linear relationship the researchers could extrapolate the amount of carbon dioxide that can still be emitted before the Arctic sea ice is completely gone in summers. For the first time, these findings present very intuitive numbers that make clear the impact every individual has on the global warming.
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Field of Study
Global Issues
Content Type
Instructional material
Date Published / Released
2017
Publisher
Latest Thinking
Speaker / Narrator
Dirk Notz, 1975-
Person Discussed
Dirk Notz, 1975-
Topic / Theme
Arctic circle, Scientific research, Global warming, Carbon dioxide, Sea ice
Copyright Message
Copyright © 2017 Latest Thinking
×
