My Sibling? A First Glance at Stepsibling and Half-Sibling Relationships

1991 ◽  
Vol 36 (5) ◽  
pp. 413-413
Author(s):  
Elizabeth A. Wehner ◽  
Wyndol Furman
Keyword(s):  
Sibling Relationships ◽  
Half Sibling

IPED2X: A robust pedigree reconstruction algorithm for complicated pedigrees

2014 ◽  
Vol 12 (06) ◽  
pp. 1442007 ◽  
Author(s):  
Dan He ◽  
Eleazar Eskin
Keyword(s):  
Sibling Relationships ◽  
Fundamental Problem ◽  
Reconstruction Algorithm ◽  
Graph Labeling ◽  
Pedigree Reconstruction ◽  
Reconstruction Accuracy ◽  
Recent Method ◽  
Novel Method ◽  
Positive Half ◽  
Half Sibling

Reconstruction of family trees, or pedigree reconstruction, for a group of individuals is a fundamental problem in genetics. Some recent methods have been developed to reconstruct pedigrees using genotype data only. These methods are accurate and efficient for simple pedigrees which contain only siblings, where two individuals share the same pair of parents. A most recent method IPED2 is able to handle complicated pedigrees with half-sibling relationships, where two individuals share only one parent. However, the method is shown to miss many true positive half-sibling relationships as it removes all suspicious half-sibling relationships during the parent construction process. In this work, we propose a novel method IPED2X, which deploys a more robust algorithm for parent construction in the pedigrees by considering more possible operations rather than simple deletion. We convert the parent construction problem into a graph labeling problem and propose a more effective labeling algorithm. We show in our experiments that IPED2X is more powerful on capturing the true half-sibling relationships, which further leads to better reconstruction accuracy.

More Unintended Injuries in Half Sibling Than Full Sibling Households in the UK

2015 ◽  
Vol 36 (3) ◽  
pp. 177-182 ◽  
Author(s):  
Antti O. Tanskanen ◽  
Mirkka Danielsbacka ◽  
Anna Rotkirch
Keyword(s):  
Lower Risk ◽  
Sibling Relationships ◽  
Genetic Relatedness ◽  
Small Children ◽  
Sibling Relations ◽  
Full Sibling ◽  
Predicted Probability ◽  
Different Types ◽  
The Uk ◽  
Half Sibling

Sibling relationships can be a source of both support and conflict. Due to more severe sibling competition, childhood injuries are predicted to increase as genetic relatedness decreases. Here we use the British Millennium Cohort Study (n = 7,143 children) to analyze the risk of accidents for small children in different types of households. Results show that, after controlling for several potential confounding factors, 3-year-old children who lived in same household with their full siblings had a significantly lower risk of injuries (predicted probability 25.3%) than did children who lived with both their full and half siblings (29.6%) or only with their half siblings (29.1%). We conclude that efforts to prevent child maltreatment should pay attention to sibling relations and family composition.

Sibling relationships of children and adolescents with mental disorders–Resource or risk factor?

2020 ◽  
Vol 34 (8) ◽  
pp. 918-926 ◽  
Author(s):  
Sabine Bojanowski ◽  
Emma G. Gotti ◽  
Nora Wanowski ◽  
Joel Nisslein ◽  
Ulrike Lehmkuhl
Keyword(s):  
Risk Factor ◽  
Mental Disorders ◽  
Children And Adolescents ◽  
Sibling Relationships
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