Comparative study on the use of seasoned or unseasoned casks made of wood from different origins for the ageing of Sherry vinegar.

Background: In the present study, the ageing process of Sherry vinegar in used (seasoned) or new casks made of chestnut, American oak, Spanish oak or French oak wood has been investigated, considering that no research has investigated whether this seasoning has a definite influence on the final composition of the aged beverage. The polyphenolic and volatile contents of the aged vinegars were determined and their sensory properties were evaluated. Different statistical tools were applied to the data collected.

Correction: Burnout Subtypes and Absence of Self-Compassion in Primary Healthcare Professionals: A Cross-Sectional Study.

[This corrects the article DOI: 10.1371/journal.pone.

Optimization of the balance between effort and yield in unilateral surgical transfer of mouse embryos.

Surgical transfer of embryos is carried out daily in animal facilities worldwide for the rederivation of mouse strains/lines, among other purposes. Current protocols described in laboratory manuals recommend using a high number of embryos during transfer, typically in the range of 15 up to 25. To optimize the use of resources it is necessary to estimate and relate the effort required and the yield obtained.

Burnout Subtypes and Absence of Self-Compassion in Primary Healthcare Professionals: A Cross-Sectional Study.

Background: Primary healthcare professionals report high levels of distress and burnout. A new model of burnout has been developed to differentiate three clinical subtypes: 'frenetic', 'underchallenged' and 'worn-out'. The aim of this study was to confirm the validity and reliability of the burnout subtype model in Spanish primary healthcare professionals, and to assess the explanatory power of the self-compassion construct as a possible protective factor.

Breast relapse after metastatic alveolar rhabdomyosarcoma: Is it an incurable entity?

Metastatic breast disease is a very rare condition in children. Rhabdomyosarcoma (RMS) is the most common solid primary tumor in children, but only a few cases of breast metastases have been described. We present the case of a young female with a primary pelvic metastatic alveolar RMS, which metastasized to the breast twice and achieved prolonged complete remission with a multimodal approach.