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Related Concept Videos

Concepts and Prototypes01:24

Concepts and Prototypes

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The human nervous system handles vast amounts of information by translating sensory stimuli into neural impulses, which the brain processes, creating thoughts expressed through language or stored as memories. The brain also synthesizes information from emotions and memories, which significantly influence thoughts and behaviors. This intricate process creates a comprehensive mental picture.
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Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
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Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...
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Mass Spectrometry: Alkene Fragmentation00:59

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Alkenes lose one electron from the unsaturated π bond upon ionization and form stable molecular ions. Further fragmentation of alkenes occurs through three different reaction pathways. The most prominent fragmentation is the cleavage at the allylic position. The resultant allylic carbocation is resonance stabilized. In the mass spectra of terminal alkenes, this fragment appears at a mass-to-charge ratio of 41. In the internal alkenes, where there are two choices of allylic cleavage, the...
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Mass Spectrometry: Amine Fragmentation00:55

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Updated: Jan 29, 2026

Radio Frequency Identification and Motion-sensitive Video Efficiently Automate Recording of Unrewarded Choice Behavior by Bumblebees
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A prototype RFID tag for detecting bumblebee visitations within fragmented landscapes.

Sarah E Barlow1,2, Mark A O'Neill3, Bruce M Pavlik1,2

  • 11Royal Botanic Gardens, Kew, Surrey, TW9 3AB UK.

Journal of Biological Engineering
|February 19, 2019
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Summary

Researchers developed a long-range, passive radio frequency identification (RFID) tagging system for tracking bumblebees. This breakthrough in insect tracking technology offers new possibilities for conservation efforts.

Keywords:
BombusInsect flightMovement ecologyPollinatorsRadio trackingTelemetry

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Area of Science:

  • Ecology
  • Entomology
  • Biotechnology

Background:

  • Tracking insect movement is crucial for ecological studies but challenging due to technological limitations.
  • Existing insect tracking methods often suffer from issues with size, weight, range, and cost.

Purpose of the Study:

  • To establish proof-of-concept for a novel long-range, passive radio frequency identification (RFID) tagging system for detecting insects.
  • To assess the feasibility of using RFID tags for tracking bumblebees under controlled conditions.

Main Methods:

  • A prototype passive RFID tag weighing 81 mg (49% of mean bee body weight) was developed.
  • The prototype tags were attached to bumblebees and tested in a glasshouse environment.
  • Detection was achieved using a 2W UHF reader with two aerials.

Main Results:

  • The prototype RFID tags successfully detected bumblebees at a distance of 1.5 meters.
  • This detection range is significantly greater (two orders of magnitude) than previously achievable with RFID tags suitable for medium-sized insects.
  • Proof-of-concept for the long-range insect tracking system was established.

Conclusions:

  • The developed RFID system represents a significant breakthrough for insect tracking, overcoming limitations of existing technologies.
  • Further development aims to reduce tag size/weight and increase detection range for optimized bee behavior and broader applications.
  • The system holds potential for applications in plant conservation, restoration, and various scientific and commercial uses.