A bacterial membrane-disrupting protein stimulates animal metamorphosis.

Unlabelled: Diverse marine animals undergo a metamorphic larval-to-juvenile transition in response to surface-bound bacteria. Although this host-microbe interaction is critical to establishing and maintaining marine animal populations, the functional activity of bacterial products and how they activate the host's metamorphosis program has not yet been defined for any animal. The marine bacterium stimulates the metamorphosis of a tubeworm called by producing a molecular syringe called metamorphosis-associated contractile structures (MACs).

Validating a Promoter Library for Application in Plasmid-Based Diatom Genetic Engineering.

While diatoms are promising synthetic biology platforms, there currently exists a limited number of validated genetic regulatory parts available for genetic engineering. The standard method for diatom transformation, nonspecific introduction of DNA into chromosomes via biolistic particle bombardment, is low throughput and suffers from clonal variability and epigenetic effects. Recent developments in diatom engineering have demonstrated that autonomously replicating episomal plasmids serve as stable expression platforms for diverse gene expression technologies.

Epidemiology and effect of gastrointestinal nematodes on dairy goats in Argentina.

The aim of this work was to study the epidemiology and harmful effects of gastrointestinal nematodes (GINs) on dairy goats maintained in an intensive system. Two groups of goats were studied: untreated group (UG) (subdivided into UGjun goats that kidded in June, and UGjul goats that kidded in July) and treated group (TG) (with no subgroups, treated with monepantel: 3.75 mg/kg, orally, monthly).

Development and tests of a paediatric and neonatal immobilizer for ambulance transfers.

There are many stretcher models able to adequately achieve the spinal immobilization of adult patients during emergency transports but do not work well with children. A paediatric and neonatal immobilizer has been designed, constructed and tested. It is simple, radio-transparent, able to be adequately fastened to an ambulance, adaptable to a wide range of paediatric patient's size, providing a correct spinal immobilization without an excessive immobilization of the rest of the body, without impairing the aperture of an aerial way or the cardiopulmonary resuscitation (CPR) and without reducing the accessibility of the medical personnel to the paediatric patient.