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Related Concept Videos

Conservation of Energy: Application01:12

Conservation of Energy: Application

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When solving problems using the energy conservation law, the object (system) to be studied should first be identified. Often, in applications of energy conservation, we study more than one body at the same time. Second, identify all forces acting on the object and determine whether each force doing work is conservative. If a non-conservative force (e.g., friction) is doing work, then mechanical energy is not conserved. The system must then be analyzed with non-conservative work. Third, for...
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The universe is composed of matter in different forms, and all forms of matter contain energy.  The different forms of energy on Earth originate from the Sun — the ultimate energy source. Plants capture light energy from the Sun, and, via the process of photosynthesis, convert it into chemical energy. This stored energy from plants can be harnessed in many ways. For example, eating plant products as food provides energy for our body to function, and burning wood or coal (fossilized...
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Conservation of Mechanical Energy01:05

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The mechanical energy E of a system is the sum of its potential energy U and the kinetic energy K of the objects within it. What happens to this mechanical energy when only conservative forces cause energy transfers within the system—that is, when frictional and drag forces do not act on the objects in the system? Also assume that the system is isolated from its environment; in other words no external force from an object outside the system causes energy changes inside the system.
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Organisms must balance energy intake with the energy required for growth, maintenance and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species, like annual plants, have only one reproductive episode in their lifetimes and consequently have short lifespans. Iteroparous species, by contrast, have many reproductive events during their lifetimes but have relatively few offspring. These two...
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The terms 'conserved quantity' and 'conservation law' have specific scientific meanings in physics, which differ from the meanings associated with their everyday use. For example, in everyday usage, water could be conserved by not using it, by using less of it, or by re-using it. However, in scientific terms, a conserved quantity of a system stays constant, changes by a definite amount that is transferred to other systems, and is converted into other forms of that...
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As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
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Manual Restraint and Common Compound Administration Routes in Mice and Rats
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Published on: September 26, 2012

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Handle energy resources with care.

Marcus Fulde1, Mathias Hornef1

  • 1Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany.

Trends in Microbiology
|December 17, 2013
PubMed
Summary
This summary is machine-generated.

Scientists discovered a new mechanism in the mammalian body that efficiently uses nutrient resources and extracts energy. This finding contributes to understanding metabolic regulation and energy homeostasis.

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Area of Science:

  • Microbiology
  • Metabolism
  • Physiology

Background:

  • The mammalian body possesses intricate mechanisms for efficient nutrient utilization and energy extraction.
  • Understanding these endogenous energy regulation systems is crucial for metabolic health.

Purpose of the Study:

  • To identify and elucidate a novel mechanism governing energy extraction and nutrient resource utilization in mammals.

Main Methods:

  • The study involved [specific methods not detailed in the abstract, e.g., in vivo models, molecular biology techniques, metabolic analysis].

Main Results:

  • A previously unknown mechanism contributing to efficient energy metabolism has been identified.
  • This mechanism plays a role in how mammals manage nutrient resources.

Conclusions:

  • The discovery of this new mechanism provides novel insights into mammalian energy homeostasis.
  • Further research into this pathway could have implications for metabolic research and therapeutic strategies.