Good Samaritan

A Good Samaritan is a person who voluntarily helps someone in need, especially a stranger, often without expecting a reward. In psychology, the Good Samaritan concept helps explain altruism and bystander intervention: people must notice a situation, interpret it as an emergency, accept personal responsibility, and choose to act, while time pressure, uncertainty, and the presence of other bystanders can discourage assistance. Research on helping behavior applies this framework to emergencies, community support, and prosocial decision-making, showing how personal values and situational conditions jointly shape whether people provide aid.

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Education

JoVE Science Education - Psychology

Analyzing Situations in Helping Behavior

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2023

Source: Julian Wills & Jay Van Bavel—New York University Social psychologists and personality psychologists both attempt to predict human behavior, but they focus on very different factors. Whereas personality psychologists focus on how personality traits, character, and individual differences affect behavior, social psychologists focus primarily on the power of social situations in shaping behavior. We often underestimate the role that social situations can play in determining behavior. We...

Research

JoVE Journal - Biology
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Primer Extension Capture: Targeted Sequence Retrieval from Heavily Degraded DNA Sources

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Cited by 41 •

2009

We present a method of targeted ancient DNA sequence retrieval, which we used to reconstruct the complete mitochondrial genomes of five Neandertal individuals. Comparison of these sequences with present day humans suggests that Neandertals had a long term low effective population size.

Using Human Induced Pluripotent Stem Cells for the Generation of Tumor Antigen-specific T Cells

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Cited by 4 •

2019

This article describes a method to generate functional tumor antigen-specific induced pluripotent stem cell-derived CD8αβ+ single positive T cells using OP9/DLL1 co-culture system.

Microfluidic Model of Necrotizing Enterocolitis Incorporating Human Neonatal Intestinal Enteroids and a Dysbiotic Microbiome

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Cited by 5 •

2023

This protocol describes an in vitro model of necrotizing enterocolitis (NEC), which can be used for mechanistic studies into disease pathogenesis. It features a microfluidic chip seeded with intestinal enteroids derived from the human neonatal intestine, endothelial cells, and the intestinal microbiome of a neonate with severe NEC.

Breast Milk Enhances Growth of Enteroids: An Ex Vivo Model of Cell Proliferation

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Cited by 16 •

2018

This protocol describes how to establish an enteroid culture system from neonatal mouse or premature human intestine as well as an efficient method to collect milk from mice.

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