The evolution of organic material on Asteroid 162173 Ryugu and its delivery to Earth.

The recent return of samples from asteroid 162173 Ryugu provides a first insight into early Solar System prebiotic evolution from known planetary bodies. Ryugu's samples are CI chondrite-like, rich in water and organic material, and primarily composed of phyllosilicate. This phyllosilicate surrounds micron to submicron macromolecular organic particles known as insoluble organic matter.

Structure and replication cycle of a virus infecting climate-modulating alga .

The globally distributed marine alga has cooling effect on the Earth's climate. The population density of is restricted by viruses, including virus 201 (EhV-201). Despite the impact of viruses on the climate, there is limited information about their structure and replication.

Retained products of conception - a retrospective analysis of 200 cases of surgical procedures for the diagnosis of residua postpartum.

Objectives: Postpartum retained products of conception are a relatively rare diagnosis occurring in approximately 1% of cases after spontaneous deliveries and abortions. The most common clinical signs are bleeding and abdominal pain. The diagnosis is based on clinical signs and ultrasound examination.

The amenorrhea as a protective factor for healing of hysterotomy - a retrospective analysis one year postpartum.

Objectives: The good healing of the hysterotomy after cesarean section is important for subsequent pregnancies. However, the factors which improve this healing have not been completely described, yet. In this study, we focused on factors which may affect healing of hysterotomy within one year after delivery, such as menstruation, breastfeeding, and the use of the contraception.

Complications of planned home births in the Czech Republic.

Objectives: This study evaluated complications that can occur during planned home births that require transfer to the hospital. These factors were assessed to improve the current status of deliveries performed outside health care facilities in the Czech Republic.

Materials And Methods: This prospective cohort study included data on 105 cases of complicated home births during 2017 to 2021 using an online form accessible to all hospital maternity wards in the Czech Republic.