Disempowered, passive and isolated: how teenage mothers’ postnatal inpatient experiences in the UK impact on the initiation and continuation of breastfeeding

Teenage mothers in the UK and other developed, English-speaking nations are among those least likely to breastfeed. Evidence suggests more young mothers intend to breastfeed than actually start, indicating that their post-birth experiences militate against initiating breastfeeding. We aimed to explore how the inpatient experiences of a group of young women who gave birth as teenagers influenced their feeding decisions and experiences, and ascertain their ideals for breastfeeding support. Six focus groups or interviews were conducted with 15 women aged 16-20 who had intended to breastfeed or breastfed. Women were recruited from teenage parent groups in Oxfordshire, UK. Ethical approval was obtained from the relevant authorities. Data was analysed inductively using a thematic approach. Three overriding themes of ‘postbirth experience on Labour Ward: disempowered and passive’; ‘the postnatal ward: alien, alone and exposed’; and ‘being there: a need for relational support’ were identified. Sub-themes on Labour Ward were ‘feelings at birth: ’so tired and so dazed’; ‘deliver, stitch, dress’ and ‘initiating feeding’. Participants described care that followed set routines, discouraging their initiating breastfeeding by compounding feelings of dependance and encouraging a passive role as midwives took control, often deciding when and how babies should be fed. Sub-themes on the postnatal ward were ‘an alien environment’; ‘feeling exposed and judged’ and ‘miscommunications’. The young mothers’ breastfeeding support requirements reflected those known to be desired by older women, but they particularly wanted guidance and esteem support to be provided by a health professional, while looking to their peers for emotional support

Smart Skin Patterns Protect Springtails

Springtails, arthropods who live in soil, in decaying material, and on plants, have adapted to demanding conditions by evolving extremely effective and robust anti-adhesive skin patterns. However, details of these unique properties and their structural basis are still unknown. Here we demonstrate that collembolan skin can resist wetting by many organic liquids and at elevated pressures. We show that the combination of bristles and a comb-like hexagonal or rhombic mesh of interconnected nanoscopic granules distinguish the skin of springtails from anti-adhesive plant surfaces. Furthermore, the negative overhang in the profile of the ridges and granules were revealed to be a highly effective, but as yet neglected, design principle of collembolan skin. We suggest an explanation for the non-wetting characteristics of surfaces consisting of such profiles irrespective of the chemical composition. Many valuable opportunities arise from the translation of the described comb-like patterns and overhanging profiles of collembolan skin into man-made surfaces that combine stability against wear and friction with superior non-wetting and anti-adhesive characteristics

Structure and functions of the ventral tube of the clover springtail Sminthurus viridis (Collembola Sminthuridae)

YesSpringtails (Collembola) are unique in Hexapoda for bearing a ventral tube (collophore) on the first abdominal segment. Although numerous studies have been conducted on the functions of the ventral tube, its fine structure has not been thoroughly elucidated to date. In this paper, we observed the jumping behavior of the clover springtail Sminthurus viridis (Linnaeus, 1758) and dissected the ventral tube using light microscopy to elucidate the fine structure and the possible function of the ventral tube. The results show that a pair of eversible vesicles can be extended from the apical opening of the ventral tube. The eversible vesicles are furnished with numerous small papillae, and can be divided into a basal part and a distal part. The eversible vesicles have a central lumen connected to the tiny papillae and leading to the body cavity. The eversible vesicles can reach any part of the body, and may serve as following functions: (a) absorbing moisture; (b) uptaking water; (c) cleaning the body surface; and (d) fastening the body on a smooth surface

Mating and aggregative behaviors among basal hexapods in the Early Cretaceous

Among the many challenges in paleobiology is the inference and reconstruction of behaviors that rarely, if ever, leave a physical trace on the environment that is suitable for fossilization. Of particular significance are those behaviors tied to mating and courtship, individual interactions critical for species integrity and continuance, as well as those for dispersal, permitting the taxon to expand its distribution as well as access new habitats in the face of local or long-term environmental change. In this context, two recently discovered fossils from the Early Cretaceous amber of Spain (ca. 105 mya) give a detailed view of otherwise fleeting ethologies in Collembola. These occurrences are phylogenetically spaced across the class, and from species representing the two major clades of springtailsÐSymphypleona and Entomobryomorpha. Specifically, we report unique evidence from a symphypleonan male (Pseudosminthurides stoechus SaÂnchez-GarcõÂa & Engel, 2016) with modified antennae that may have functioned as a clasping organ for securing females during mating on water's surface, and from an aggregation of entomobryomorphan individuals (Proisotoma communis Sánchez-García & Engel, 2016) purportedly representing a swarming episode on the forest floor. We demonstrate that the mating behavioral repertoire in P. stoechus, which is associated with considerable morphological adaptations, likely implied elaborate courtship and maneuvering for guarantee sperm transfer in an epineustic species. These discoveries reveal significant behaviors consistent with modern counterparts and a generalized stasis for some ancient hexapod ethologies associated with complex mating and courtship and social or pre-social aggregations, so critical to specific constancy and dispersal