The B Chromosome of Pseudococcus viburni: A Selfish Chromosome that Exploits Whole-Genome Meiotic Drive.

Meiosis is generally a fair process: each chromosome has a 50% chance of being included into each gamete. However, meiosis can become aberrant with some chromosomes having a higher chance of making it into gametes than others. Yet, why and how such systems evolve remains unclear.

Is Ockham's razor losing its edge? New perspectives on the principle of model parsimony.

The preference for simple explanations, known as the parsimony principle, has long guided the development of scientific theories, hypotheses, and models. Yet recent years have seen a number of successes in employing highly complex models for scientific inquiry (e.g.

Sisonke Ntwana: Describing the mechanisms of change of an arts-based intervention for pregnant and parenting adolescents experiencing violence and poor mental health in South Africa.

Background: In South Africa, one in five adolescents experience pregnancy and face heightened rates of interpersonal violence and mental health challenges. Yet, few interventions are tailored to them.

Methods: 28 pregnant adolescents reporting past year intimate partner violence and/or non-partner rape were purposively recruited in antenatal clinics in Johannesburg to attend a 6-session arts-based intervention, delivered by 4 graduate art therapy students alongside clinical supervision.

Top Ten Tips Palliative Care Clinicians Should Know About Rheumatology.

Systemic autoimmune rheumatic diseases (SARDs) consist of a broad range of immune-mediated multisystem diseases. They are chronic, incurable illnesses that often present in early to mid-life and can be associated with a high symptom burden, disability, and early mortality. Treatment guidelines for similar chronic, life-limiting conditions with uncertain disease courses now recommend palliative care (PC) assessment at the time of diagnosis.