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

The Periodic Table and Organismal Elements01:27

The Periodic Table and Organismal Elements

23.2K
Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally occurring, and only a few of them are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.
Periodic Table Provides Information...
23.2K
The Periodic Table and Organismal Elements00:57

The Periodic Table and Organismal Elements

204.6K
Overview
204.6K
Elements: Chemical Symbols and Isotopes02:31

Elements: Chemical Symbols and Isotopes

130.0K
A chemical symbol is an abbreviation used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. The same symbol is used to indicate one atom of mercury (microscopic domain) or to label a container of many atoms of the element mercury (macroscopic domain).
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...
130.0K
Electron Configuration of Multielectron Atoms03:26

Electron Configuration of Multielectron Atoms

65.7K
The alkali metal sodium (atomic number 11) has one more electron than the neon atom. This electron must go into the lowest-energy subshell available, the 3s orbital, giving a 1s22s22p63s1 configuration. The electrons occupying the outermost shell orbital(s) (highest value of n) are called valence electrons, and those occupying the inner shell orbitals are called core electrons. Since the core electron shells correspond to noble gas electron configurations, we can abbreviate electron...
65.7K
Composition of Blood Plasma01:24

Composition of Blood Plasma

9.5K
Blood plasma is a fluid that contains approximately 92% water and 8% solutes. The solutes include various types of proteins, which constitute about 7% of the total solutes in the plasma. The high-molecular-weight proteins—albumins, globulins, and fibrinogen—are essential to plasma function. Albumins, making up about 60% of the plasma proteins, maintain the osmotic balance within blood vessels by preventing excessive water leakage. Additionally, albumins serve as carrier proteins,...
9.5K
Fetal Circulation01:14

Fetal Circulation

3.7K
Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
3.7K

You might also read

Related Articles

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

Sort by
Same author

Adverse effect of obesity and dysglycemia on bone microarchitecture and strength in youth: sex-related differences.

The Journal of clinical endocrinology and metabolism·2026
Same author

High-resolution peripheral quantitative computed tomography reliability and accuracy of bone density and morphology properties in children.

JBMR plus·2025
Same author

Comparison of percentile tables and algorithm-based calculators for classification of blood pressures in children and adolescents with obesity: A secondary analysis of a clinical trial.

Journal of paediatrics and child health·2022
Same author

Neurodevelopmental outcomes of extremely preterm infants fed an exclusive human milk-based diet versus a mixed human milk + bovine milk-based diet: a multi-center study.

Journal of perinatology : official journal of the California Perinatal Association·2022
Same author

External validation of a prediction model for estimating fat mass in children and adolescents in 19 countries: individual participant data meta-analysis.

BMJ (Clinical research ed.)·2022
Same author

Is the Antioxidant Capacity of Stored Human Milk Preserved?

Breastfeeding medicine : the official journal of the Academy of Breastfeeding Medicine·2021
Same journal

A Bayesian Modeling Approach to Optimize Longitudinal Biomarker Sampling Schedules Using Hormonal Data.

American journal of human biology : the official journal of the Human Biology Council·2026
Same journal

Polygyny and Child Health in Afghanistan: Understanding Health Risks and Policy Solutions in a Traditional Society.

American journal of human biology : the official journal of the Human Biology Council·2026
Same journal

Peri-Pubertal Height Shifts and Stable Photoperiod-Associated Geographic Patterning Before and After COVID-19 in Japanese Children.

American journal of human biology : the official journal of the Human Biology Council·2026
Same journal

The Evolution of Digit Ratio (2D:4D) From 1998 to 2025: A Bibliometric Analysis.

American journal of human biology : the official journal of the Human Biology Council·2026
Same journal

Correction to "Associations of Obesity, Movement Behaviors, and Socioeconomic Status With Fundamental Movement Skills in Children: Results From the REACT Project".

American journal of human biology : the official journal of the Human Biology Council·2026
Same journal

Response to Letter to the Editor: Association of Air Pollution With Adiposity Rates in Active Runners and Inactive People.

American journal of human biology : the official journal of the Human Biology Council·2026
See all related articles

Related Experiment Video

Updated: Mar 1, 2026

Biochemical Measurement of Neonatal Hypoxia
13:13

Biochemical Measurement of Neonatal Hypoxia

Published on: August 24, 2011

14.4K

Body elemental composition of the neonate: New reference data.

Kenneth J Ellis1,2, Roman J Shypailo1, Richard J Schanler1

  • 1USDA/ARS Children's Nutrition Research Center, Departments of Pediatrics, Baylor College of Medicine.

American Journal of Human Biology : the Official Journal of the Human Biology Council
|May 27, 2017
PubMed
Summary
This summary is machine-generated.

This study measured total body elemental content in 17 neonates using nondestructive methods. Results show strong correlations between body weight and elemental composition, aiding in understanding neonatal nutritional requirements.

More Related Videos

How to Administer Near-Infrared Spectroscopy in Critically ill Neonates, Infants, and Children
07:27

How to Administer Near-Infrared Spectroscopy in Critically ill Neonates, Infants, and Children

Published on: August 19, 2020

12.7K
Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
08:45

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes

Published on: May 10, 2022

2.5K

Related Experiment Videos

Last Updated: Mar 1, 2026

Biochemical Measurement of Neonatal Hypoxia
13:13

Biochemical Measurement of Neonatal Hypoxia

Published on: August 24, 2011

14.4K
How to Administer Near-Infrared Spectroscopy in Critically ill Neonates, Infants, and Children
07:27

How to Administer Near-Infrared Spectroscopy in Critically ill Neonates, Infants, and Children

Published on: August 19, 2020

12.7K
Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
08:45

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes

Published on: May 10, 2022

2.5K

Area of Science:

  • Neonatal physiology
  • Biomedical engineering
  • Pediatric nutrition

Background:

  • Accurate assessment of neonatal body composition is crucial for understanding growth and development.
  • Establishing reference values for elemental content in neonates is essential for clinical and research purposes.
  • Previous methods for determining elemental composition were often invasive or limited in scope.

Purpose of the Study:

  • To quantify the total body elemental content of potassium (K), calcium (Ca), phosphorus (P), sodium (Na), and chlorine (Cl) in neonates.
  • To compare measured elemental content with established reference fetus models.
  • To establish correlations between body weight and elemental composition in the neonatal period.

Main Methods:

  • Utilized nondestructive in situ techniques for elemental analysis.
  • Employed 40K counting and delayed-gamma neutron activation analysis.
  • Examined seventeen neonates postmortem within 10 days of birth, with varying body weights and gestational ages.

Main Results:

  • Total body elemental content of K, Ca, P, Na, and Cl was successfully measured.
  • Significant correlations (r = 0.92-0.98, P < 0.001) were found between body elemental content and body weight.
  • Measured values were compared to reference fetus model estimates.

Conclusions:

  • The study provides valuable data on the elemental composition of neonates.
  • The strong correlation between body weight and elemental content offers a practical approach for estimation.
  • These findings are instrumental in determining optimal postnatal nutritional needs for neonates.