Intralocus sexual conflict (IASC) occurs when a trait under selection in one sex constrains the other sex from achieving its sex-specific fitness optimum. Selection pressures on body size often differ between the sexes across many species, including humans: among men individuals of average height enjoy the highest reproductive success, while shorter women have the highest reproductive success. ...

All school children experience stress at some point in their school careers. This study investigates whether dyslexic children, by way of their educational and social difficulties, experience higher levels of stress at school. The School Situation Survey was used to investigate both the sources and manifestations of stress amongst dyslexic children and non-dyslexic sibling controls. Samples wer...

OBJECTIVES The death of a sibling can trigger grief and depression. Sibling deaths from external causes may be particularly detrimental, since they are often sudden. We aimed to examine the association between the death of an adult sibling from external causes and the risk of suicide among surviving siblings up to 18 years after bereavement. We adjusted for intrafamily correlation in death risk...

This paper presents a new concept in cryptography called the sibling intractable function family SIFF which has the property that given a set of initial strings colliding with one another it is computationally infeasible to nd another string that would collide with the initial strings The various concepts behind SIFF are presented together with a construction of SIFF from any one way function A...

A motor protein called Klp10A ensures that germline stem cells in male fruit flies divide to produce two sibling cells that are equal in size.

OBJECTIVE To examine relationships between empathy, illness concepts, sibling relationship variables, and psychological adjustment among siblings of children with cancer. METHODS Participants were 29 siblings and 14 children diagnosed with acute lymphoblastic leukemia, acute myelocytic leukemia, or non-Hodgkin's lymphoma. Data included self- and parent-report questionnaires completed during a...

OBJECTIVE Examine general emotion expression and sibling-parent emotion communication among Latino and non-Latino white (NLW) siblings of children with intellectual disabilities (ID) and matched comparisons. METHODS 200 siblings (ages 8-15 years) completed the newly developed Sibling-Parent Emotion Communication Scale and existing measures of general emotion expression and psychosocial functi...

Sibling Influence on the Human Capital of the Left Behind While a growing literature has analyzed the effects of parental migration on the educational outcomes of children left behind, this is the first study to highlight the importance of sibling interactions in such a context. Using panel data from the RUMiC Survey, we find that sibling influence on schooling performance is stronger among lef...

This study examined mechanisms by which sibling relationships may buffer the harmful effects of negative peer experiences on the psychological adjustment of children with mental retardation (MR) or learning disabilities (LD). The study broadened existing findings with typically developing children and examined the effects of sibling social competency training on peer experiences and the impact ...

We provide the first empirical evidence on direct sibling spillover effects in school achievement using English administrative data. Our identification strategy exploits the variation in school test scores across three subjects observed at age 11 and 16 and the variation in the composition of school mates between siblings. These two sources of variation have been separately used to identify sch...