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Pedigree Analysis

Pedigree Analysis

Longitudinal Research

Longitudinal Research

Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...

Autism Spectrum Disorder

Autism Spectrum Disorder

Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.

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Updated: Jun 23, 2026

Measurement of the Rheology of Crude Oil in Equilibrium with CO2 at Reservoir Conditions

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Exploring the Association Between Parental Age and Autism Spectrum Disorder Risk in Qatar

Fouad AlShaban^1,2, Éric Fombonne³, Iman Ghazal⁴

¹Neurological Disorders Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar. falshaban@hbku.edu.qa.

Journal of Autism and Developmental Disorders

|January 6, 2026

Summary

No abstract available in PubMed .

Keywords:

Associated factors Autism spectrum disorder Maternal age Paternal age Qatar

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