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Related Concept Videos

Two-Way ANOVA01:17

Two-Way ANOVA

The two-way ANOVA is an extension of the one-way ANOVA. It is a statistical test performed on three or more samples categorized by two factors - a row factor and a column factor. Ronald Fischer mentioned it in 1925 in his book 'Statistical Methods for Researchers.'
The two-way ANOVA analysis initially begins by stating the null hypothesis that there is an interaction effect between the two factors of a dataset. This effect can be visualized using line segments formed by joining the means for...
The Ratio of X Chromosome to Autosomes02:45

The Ratio of X Chromosome to Autosomes

In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.  
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female Drosophila...
The Y Chromosome Determines Maleness02:19

The Y Chromosome Determines Maleness

The Y chromosome is a sex chromosome found in several vertebrates and mammals, including humans. In addition to 22 pairs of autosomes, the human males have one X chromosome and one Y chromosome. In these organisms, the presence or absence of the Y chromosome determines the development of male traits.
Evolution
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Regression Toward the Mean01:52

Regression Toward the Mean

Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when researchers try to extrapolate results...
Behavioral Genetics and Its Designs01:23

Behavioral Genetics and Its Designs

Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
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Socioemotional Experience and Gender Development

Social-emotional experiences and cultural influences play significant roles in shaping gender development. During middle childhood, from ages 6 to 11, peer groups become dominant in reinforcing gender norms. Children in this age group often align with same-gender peer groups, which actively encourage behaviors that conform to traditional gender roles. For instance, boys may be discouraged from engaging in activities perceived as feminine, reinforcing culturally dictated norms about masculinity...

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Updated: Jul 5, 2026

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
07:56

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

Published on: January 29, 2018

Determinants of birthweight: gender based analysis.

Samia Halileh1, Niveen Abu-Rmeileh, Graham Watt

  • 1Institute of Community and Public Health, Birzeit University/Ramallah, PO Box 154, Ramallah, Occupied Palestinian Territory. Samia@birzeit.edu

Maternal and Child Health Journal
|May 9, 2008
PubMed
Summary

Birth weight is influenced by maternal factors like age, education, and birth order, with some effects varying by infant gender. These determinants highlight both universal biological influences and culture-specific social factors.

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Last Updated: Jul 5, 2026

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
07:56

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

Published on: January 29, 2018

Area of Science:

  • Perinatal epidemiology
  • Maternal and child health
  • Human reproductive biology

Background:

  • Birth weight is a critical indicator of infant health and development.
  • Understanding determinants of birth weight is essential for public health interventions.
  • Socioeconomic and cultural factors may influence birth weight outcomes.

Purpose of the Study:

  • To investigate the determinants of birth weight in full-term infants.
  • To examine the association between birth weight and infant gender.
  • To analyze factors in the occupied Palestinian territory.

Main Methods:

  • Cross-sectional study design.
  • Stratified random sampling of households in the West Bank and Gaza Strip.
  • Multivariable analysis using analysis of variance for mixed models.

Main Results:

  • Maternal age, education, birth order, and infant sex were significant determinants of birth weight.
  • Maternal education's effect on birth weight was more pronounced in female infants.
  • Birth order's impact on birth weight varied with maternal age.

Conclusions:

  • Birth weight is shaped by universal biological factors and culture-specific social, ethnic, and environmental influences.
  • Gender-specific effects on birth weight determinants were observed.
  • Findings underscore the interplay of biological and sociocultural factors in determining infant birth weight.