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Related Concept Videos

Radical Reactivity: Nucleophilic Radicals01:16

Radical Reactivity: Nucleophilic Radicals

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Radicals adjacent to electron-donating groups are called nucleophilic radicals. These radicals readily react with electrophilic alkenes. The SOMO–LUMO interactions are the driving force for the reaction, where the high-energy SOMO of the electron-rich, nucleophilic radicals interacts with the low-energy LUMO of the electron-deficient, electrophilic alkenes. Such SOMO–LUMO interactions are the basis of reactive radical traps, affecting the selectivity in radical reactions. For...
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Radical Reactivity: Electrophilic Radicals01:02

Radical Reactivity: Electrophilic Radicals

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Radicals adjacent to electron‐withdrawing groups are called electrophilic radicals. These radicals readily react with nucleophilic alkenes. For example, the malonate radical, in which the radical center is flanked by two electron‐withdrawing groups, reacts readily with butyl vinyl ether, which consists of an electron‐donating oxygen substituent. The reaction between electrophilic malonate radical and nucleophilic vinyl ether is favored because the radical has a...
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Radical Autoxidation01:20

Radical Autoxidation

3.1K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
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Radical Formation: Overview01:03

Radical Formation: Overview

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A bond can be broken either by heterolytic bond cleavage to form ions or homolytic bond cleavage to yield radicals. A fishhook arrow is used to represent the motion of a single electron in homolytic bond cleavage. There are two main sources from which radicals can be formed:
Radicals from spin-paired molecules:
Radicals can be obtained from spin-paired molecules either by homolysis or electron transfer. While two radicals are formed in the former, an electron is added in the...
2.6K
Radical Formation: Homolysis00:54

Radical Formation: Homolysis

4.3K
A bond is formed between two atoms by sharing two electrons. When this bond is broken by supplying sufficient energy, either two electrons can be taken up by one atom forming ions by the cleavage called heterolysis, or the two electrons are shared by two atoms, with one each creating radicals by the cleavage called homolysis.
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Radical Formation: Addition00:47

Radical Formation: Addition

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Radicals can be formed by adding a radical to a spin-paired molecule. This is typically observed with unsaturated species, where the addition of a radical across the π bond leads to the production of a new radical by dissolving the π bond. For example, the addition of a Br radical to an alkene yields a carbon-centered radical.
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Updated: Jan 26, 2026

Retzius-Sparing Robot-Assisted Radical Prostatectomy
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Robotic-assisted radical prostatectomy: The teaching.

Iván Azael Martínez-Alonso1, Rafael Alberto Valdez-Flores1, Sanjuan Padrón-Lucio1

  • 1Departamento de Urología. Hospital Central Militar. Ciudad de México. México.

Archivos Espanoles De Urologia
|April 5, 2019
PubMed
Summary
This summary is machine-generated.

Robot-assisted radical prostatectomy (RARP) training is evolving with structured modules including virtual models and proctoring. This approach enhances learning efficiency for urologists mastering robotic surgery techniques.

Keywords:
AprendizajeAsistida por RobotCirugía robóticaCurva de aprendizajeEducaciónEducationLearningLearning curveProceso de enseñanzaProstatectomía radicalRadical prostatectomyRobot-assistedRobotic surgeryTeaching process

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Area of Science:

  • Surgical Education
  • Robotic Surgery
  • Medical Simulation

Background:

  • Robot-assisted radical prostatectomy (RARP) has introduced new paradigms in surgical training.
  • Effective teaching methodologies are crucial for mastering complex robotic procedures.

Purpose of the Study:

  • To review current trends and best practices in the teaching and learning process of RARP.
  • To highlight the role of simulation and structured modules in RARP education.

Main Methods:

  • Structured training modules encompassing theoretical learning, simulation, and personalized counseling.
  • Utilizing high-quality simulators and virtual models for practice.
  • Proctorization and immediate post-procedure video analysis.

Main Results:

  • A well-structured, modular approach significantly aids urologists in acquiring the RARP learning curve.
  • Virtual models, simulator training, and proctor feedback shorten the learning process.
  • Continuous learning and skill refinement are emphasized, with advanced trainees becoming instructors.

Conclusions:

  • Virtual models are transforming medical education in robotic surgery.
  • A combination of theoretical knowledge, virtual training, and expert guidance is essential for surgical skill acquisition.
  • Future advancements in virtual models aim to closely replicate real-world surgical scenarios.