Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Stone Masonry01:29

Stone Masonry

272
Stone masonry is a construction technique that uses individual stones to build structures and can be categorized into two main types: rubble and ashlar. Rubble masonry uses uneven, naturally shaped stones such as river rocks or fragments from quarries. This method often requires the mason to select and possibly shape each stone to fit the designated space, ensuring a proper build, even with irregular stone sizes and shapes. Ashlar masonry, on the other hand, employs uniformly cut stones that...
272
Quarrying of Stone01:15

Quarrying of Stone

313
Quarrying is the process of extracting stone from a quarry, where specialized techniques are employed to remove large blocks of stone safely and efficiently. This process can involve controlled explosions or more precision-oriented methods such as cutting and drilling.
One common method involves using a diamond belt saw to cut large blocks from the quarry face. These blocks can be about 50 feet long and 12 feet high. After the initial vertical cut, drilling is performed at the base of the...
313
Types of Building Stone01:30

Types of Building Stone

229
Building stones, essential materials for construction, are extracted from natural rock deposits and processed into specific forms and dimensions suitable for various building applications. These stones are broadly classified into three types based on their geological formation: igneous, sedimentary, and metamorphic.
Igneous rocks are formed from the solidification of magma or lava. An example is granite, known for its durability and resistance to weathering, making it ideal for parts of...
229
Frustration and Conflict: Avoidance-Avoidance, Double-Approach Avoidance01:14

Frustration and Conflict: Avoidance-Avoidance, Double-Approach Avoidance

301
Avoidance-avoidance conflict refers to a psychological situation where a person must choose between two or more unpleasant alternatives. These conflicts are particularly stressful because neither option is desirable. This dilemma is often expressed in sayings like "caught between a rock and a hard place" or "between the devil and the deep blue sea." For instance, individuals who fear dental procedures may find themselves torn between enduring a painful toothache or facing the...
301
Placing Concrete01:17

Placing Concrete

284
The concrete is placed as close as possible to its final position to avoid segregation. The placed concrete is then fully compacted to expel the entrapped air, and the next layer of concrete is laid while the underlying layer is still in the plastic state. The rate at which concrete is placed and compacted is kept equal.
While placing concrete, care is taken to ensure that the concrete is laid in uniform layers, and hand shoveling and moving concrete using poker vibrators is avoided. Also,...
284
Design Example: Aggregate Gradation01:24

Design Example: Aggregate Gradation

218
The right type and quality of aggregates are crucial for concrete as they significantly influence its properties, mix proportions, and cost-effectiveness. If different sources are available for sand, the commonly used fine aggregate in concrete, the selection of sand is primarily based on its gradation.
The grading, or particle-size distribution, of sand is determined using sieve analysis, with standard sizes ranging from 150 μm to 10 mm (ASTM No. 100 sieve to 3⁄8 in. sieve). Sand is...
218

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Communication delay increases procedure time and instructor task load during simulated suturing by novices.

NPJ microgravity·2026
Same author

Autonomous Medical Officer Support Software Technology Demonstrations on the International Space Station.

Telemedicine journal and e-health : the official journal of the American Telemedicine Association·2026
Same author

Multisociety multispecialty position statement on corticosteroid injections and influenza and COVID-19 vaccine administration.

Regional anesthesia and pain medicine·2026
Same author

Multisociety multispecialty consensus recommendations on corticosteroid injections for facet joint and sacroiliac joint pain.

Regional anesthesia and pain medicine·2026
Same author

Language Complexity Shapes Engagement with Orthopaedic Information on Social Media: A Prospective Analysis.

JB & JS open access·2025
Same author

Artificial Intelligence for Patient Education: A Primer, Not a Proxy.

A&A practice·2025

Related Experiment Video

Updated: Nov 16, 2025

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions
15:30

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions

Published on: August 5, 2020

12.1K

Choosing Between a Rock and the Pot Place.

Ariana M Nelson1

  • 1Division of Pain Medicine, Department of Anesthesiology, University of California-Irvine, Irvine, California, USA.

Cannabis and Cannabinoid Research
|February 22, 2021
PubMed
Summary

Healthcare providers lack evidence to answer patient questions about medicinal cannabis due to research barriers. Reclassifying cannabis could enable crucial research into its benefits and risks.

Keywords:
cannabinoid analgesiadrug abusemedical marijuanaopioidspainpublic policy

More Related Videos

Assessment of Mouse Judgment Bias through an Olfactory Digging Task
12:10

Assessment of Mouse Judgment Bias through an Olfactory Digging Task

Published on: March 4, 2022

2.9K
Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
08:16

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity

Published on: March 13, 2014

19.2K

Related Experiment Videos

Last Updated: Nov 16, 2025

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions
15:30

A Telemetric, Gravimetric Platform for Real-Time Physiological Phenotyping of Plant–Environment Interactions

Published on: August 5, 2020

12.1K
Assessment of Mouse Judgment Bias through an Olfactory Digging Task
12:10

Assessment of Mouse Judgment Bias through an Olfactory Digging Task

Published on: March 4, 2022

2.9K
Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
08:16

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity

Published on: March 13, 2014

19.2K

Area of Science:

  • Pain Medicine
  • Cannabis Research
  • Pharmacology

Background:

  • Patients frequently inquire about medicinal cannabis, but healthcare providers often rely on anecdotal evidence due to knowledge gaps.
  • Research into cannabis is hindered by its federal illegal status, creating barriers at institutional and state levels.
  • This is particularly relevant in pain management, where cannabis is increasingly considered.

Purpose of the Study:

  • To highlight the challenges in researching medicinal cannabis.
  • To emphasize the need for reclassification to facilitate scientific inquiry.
  • To discuss the approach to patients curious about cannabis for pain management.

Main Methods:

  • Qualitative perspective from a California-based pain physician.
  • Analysis of barriers to cannabis research.
  • Discussion of patient-provider interactions regarding cannabis.

Main Results:

  • Significant knowledge gaps exist regarding the efficacy and safety of medicinal cannabis.
  • Federal classification of cannabis impedes high-quality research.
  • Physician perspectives underscore the need for evidence-based guidance.

Conclusions:

  • Reclassifying cannabis is essential to overcome research barriers.
  • Streamlining research will clarify the benefits and risks of medicinal cannabis.
  • This is crucial for informed clinical practice and patient care.