On the use of Carbograph 5TD as an adsorbent for sampling VVOCs: validation of an analytical method.

A standardised method for the analysis of very volatile organic compounds (VVOCs) in indoor air is still missing. This study evaluates the use of Carbograph 5TD as an adsorbent for 60 compounds (47 VVOCs + 13 VOCs) by comparing their recoveries with different spiking modes. The influence of the spiking of the tubes in dry nitrogen, humidified air or along the whole flushing duration mimicking real sampling was investigated.

Cochlear implantation and facial nerve anastomosis to rehabilitate a burnt middle ear.

A 48-year-old man presented to the ENT department of a general hospital after a traumatic event that occurred at work. During arc welding, an incandescent metallic projectile entered the left external auditory canal immediately causing earache, tinnitus, hearing loss, vertigo, and completed peripheral facial palsy on the left side. A burnt middle ear is a rare situation for which very few cases are described in the literature.

Selection of gas standards, gas chromatography column and adsorbents for the measurement of very volatile organic compounds (C-C) in indoor air.

The ISO 16000-6 standard gives directions to adapt the analysis of volatile organic compounds (VOCs) in indoor and test chamber air to very volatile organic compounds (VVOCs). The same techniques with sorbent-based active sampling, thermal desorption and gas chromatography coupled with mass spectrometry (TD-GC/MS) should be used. However, VVOCs require gaseous standards, an adapted GC column and a reliable sampling adsorbent.

Comparing the self-perceived effects of a facial anti-aging product to those automatically detected from selfie images of Chinese women of different ages and cities.

Objective: To assess the agreement, after 1-month application of a popular and efficient anti-aging product, between self-perceived facial signs of aging and those detected and graded by an automatic A.I-based system, using smartphones' selfie images.

Material And Methods: Of 1065 Chinese women, aged 18-60 years, from eight different Chinese cities were recruited.

The intestinal microbial composition in Greylag geese differs with steatosis induction mode: spontaneous or induced by overfeeding.

Background: Relationships between microbial composition and steatosis are being extensively studied in mammals, and causal relations have been evidenced. In migratory birds the liver can transiently store lipids during pre-migratory and migratory phases, but little is known about the implications of the digestive microbiota in those mechanisms. The Landaise greylag goose (Anser anser) is a good model to study steatosis in migratory birds as it is domesticated, but is still, from a genetic point of view, close to its wild migratory ancestor.