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

Global Climate Change01:50

Global Climate Change

29.0K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
29.0K
Le Chatelier's Principle: Changing Concentration02:27

Le Chatelier's Principle: Changing Concentration

66.1K
A system at equilibrium is in a state of dynamic balance, with forward and reverse reactions taking place at equal rates. If an equilibrium system is subjected to a change in conditions that affects these reaction rates differently (a stress), then the rates are no longer equal and the system is not at equilibrium. The system will subsequently experience a net reaction in the direction of a greater rate (a shift) that will re-establish the equilibrium. This phenomenon is summarized by Le...
66.1K
Rates of Change01:20

Rates of Change

134
The rate of change is a central concept in mathematics that quantifies how one variable varies in response to another. It serves as a foundational tool in modeling dynamic systems across disciplines such as physics, biology, economics, and engineering. Understanding both average and instantaneous rates of change enables the analysis of behavior in functions that describe real-world phenomena.Average Rate of ChangeFor a function f(x) defined over an interval [x1,x2], the average rate of change...
134
Work Done During Volume Change01:17

Work Done During Volume Change

5.2K
In mechanics, work is done on an object when the force acting on it displaces the object. In thermodynamics, work done on a system can be estimated when the system's volume changes during any thermodynamic process.
Consider a gas confined to a cylinder fitted with a movable piston at one end. If the gas expands from volume V1 to volume V2, it exerts a force on the piston, such that the piston moves by a distance dr.
The work done by the gas on the piston can be expressed as
5.2K
Net Change Theorem01:22

Net Change Theorem

76
The Net Change Theorem is a fundamental principle in calculus that establishes a direct relationship between a function’s rate of change and its accumulated change over an interval. Mathematically, it states that the definite integral of a function's derivative over a given interval [a,b] yields the net change in the original function:This theorem has significant applications in various real-world scenarios, including physics, economics, and engineering. A particularly useful application...
76
Leveling Effect01:29

Leveling Effect

1.4K
In acid-base chemistry, the leveling effect refers to the limitation imposed by the solvent on the strength of acids and bases in solution. When a base stronger than the solvent's conjugate base is used, it deprotonates the solvent until the base is entirely consumed, making it ineffective against weaker acids. Conversely, an acid stronger than the solvent's conjugate acid protonates the solvent until the acid is depleted, rendering it ineffective against weaker bases. Essentially, the...
1.4K

You might also read

Related Articles

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

Sort by
Same author

Pediatric Autism Diagnosis Accuracy and Confidence: A Comparison of Experienced and Inexperienced Clinicians Making Decisions with and without AI Decision Support.

Research squareĀ·2026
Same author

Unbiased autoantibody screening using nucleic acid protein programmable array in pediatric autoimmune neuropsychiatric disorder associated with streptococcal infections.

Frontiers in behavioral neuroscienceĀ·2026
Same author

Gastroschisis: Is the Combination of Diagnosis and Procedure Code Sufficient for Case-Confirmation?

Birth defects researchĀ·2026
Same author

Distressing Bleeding Symptoms in Interviews of Patients With Hypermobile Ehlers-Danlos Syndrome and Hypermobility Spectrum Disorder.

Haemophilia : the official journal of the World Federation of HemophiliaĀ·2025
Same author

Deep learning for autism detection using clinical notes: A comparison of transfer learning for a transparent and black-box approach.

Artificial intelligence in medicineĀ·2025
Same author

Garden on the Go: A Feasibility Study of a Gardening Program to Support Mental Health and Resilience in Youth with Adverse Childhood Experiences.

Children (Basel, Switzerland)Ā·2025

Related Experiment Video

Updated: Feb 12, 2026

Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter
12:15

Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter

Published on: May 29, 2019

9.2K

Postfolate spina bifida lesion level change.

Carin Eldridge1, Sruti Bandlamuri2, Jennifer G Andrews2

  • 1School of Medicine, University of Arizona, Tucson, Arizona.

Birth Defects Research
|March 26, 2018
PubMed
Summary
This summary is machine-generated.

Folate fortification significantly reduced severe spina bifida (SB) lesions, particularly at the thoracic level. This highlights fortification

Keywords:
folic acidfortificationlesion levelmyelomeningocelespina bifida

More Related Videos

Modeling Stroke in Mice: Focal Cortical Lesions by Photothrombosis
06:07

Modeling Stroke in Mice: Focal Cortical Lesions by Photothrombosis

Published on: May 6, 2021

7.8K
Sectioning Mammary Gland Whole Mounts for Lesion Identification
09:22

Sectioning Mammary Gland Whole Mounts for Lesion Identification

Published on: July 24, 2017

11.2K

Related Experiment Videos

Last Updated: Feb 12, 2026

Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter
12:15

Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter

Published on: May 29, 2019

9.2K
Modeling Stroke in Mice: Focal Cortical Lesions by Photothrombosis
06:07

Modeling Stroke in Mice: Focal Cortical Lesions by Photothrombosis

Published on: May 6, 2021

7.8K
Sectioning Mammary Gland Whole Mounts for Lesion Identification
09:22

Sectioning Mammary Gland Whole Mounts for Lesion Identification

Published on: July 24, 2017

11.2K

Area of Science:

  • Neurology
  • Public Health
  • Pediatrics

Background:

  • Spina bifida (SB) is a major birth defect in the U.S.
  • Folate fortification's impact on SB prevalence is known, but its effect on neurologic function is less understood.
  • This study investigates changes in SB lesion levels before and after food fortification.

Purpose of the Study:

  • To assess the functional neurologic level of spina bifida lesions in the pre- and post-folate fortification eras.
  • To determine if folate fortification has altered the distribution of SB lesion severity.

Main Methods:

  • Retrospective review of medical records from a regional clinic in Arizona.
  • Inclusion criteria: Spina bifida diagnosis (with or without hydrocephalus), born between 1981-1995 (prefortification) and 1999-2013 (postfortification).
  • Comparison of lesion levels between the two eras.

Main Results:

  • Significant difference in functional lesion levels observed post-fortification.
  • An 85% reduction in thoracic level lesions was noted in the postfortification era (p < .005).
  • Mid-lumbar lesions remained the most common type in both eras.

Conclusions:

  • Folate fortification is associated with a significant shift in the distribution of spina bifida lesion levels.
  • The findings suggest a potential improvement in neurologic function related to SB in the post-fortification era.
  • Further national studies with larger sample sizes are recommended to validate these observations.