71 research outputs found
Micropatterning and dynamic swelling of photo-crosslinkable electroactive Pluronic hydrogel
AbstractThis paper presents the controlled swelling of a novel combination of materials for microsystems: a photopatternable electroactive polymer gel. It is very promising as an actuator material for e.g. biomedical or microfluidic applications as it shows a volume swelling of over 50% upon application of very modest voltages in a liquid environment. We present the synthesis of the novel material, the development of a MEMS compatible fabrication process and the measurements on fabricated test structures
Inventory of current EU paediatric vision and hearing screening programmes
Background: We examined the diversity in paediatric vision and hearing screening
programmes in Europe.
Methods: Themes relevant for comparison of screening programmes were derived from
literature and used to compile three questionnaires on vision, hearing and public-health
screening. Tests used, professions involved, age and frequency of testing seem to influence
sensitivity, specificity and costs most. Questionnaires were sent to ophthalmologists,
orthoptists, otolaryngologists and audiologists involved in paediatric screening in all EU fullmember,
candidate and associate states. Answers were cross-checked.
Results: Thirty-nine countries participated; 35 have a vision screening programme, 33 a
nation-wide neonatal hearing screening programme. Visual acuity (VA) is measured in 35
countries, in 71% more than once. First measurement of VA varies from three to seven years
of age, but is usually before the age of five. At age three and four picture charts, including Lea
Hyvarinen are used most, in children over four Tumbling-E and Snellen. As first hearing
screening test otoacoustic emission (OAE) is used most in healthy neonates, and auditory
brainstem response (ABR) in premature newborns. The majority of hearing testing
programmes are staged; children are referred after one to four abnormal tests. Vision
screening is performed mostly by paediatricians, ophthalmologists or nurses. Funding is
mostly by health insurance or state. Coverage was reported as >95% in half of countries, but
reporting was often not first-hand.
Conclusion: Largest differences were found in VA charts used (12), professions involved in
vision screening (10), number of hearing screening tests before referral (1-4) and funding
sources (8)
Capteurs de flux thermique et de rayonnement infrarouge : principe et applications à la mesure de hautes températures
Développement de modules électroniques permettant de détecter la présence d'une personne ou d'une partie de corps humain
Microcapteurs de flux thermique sur substrat conducteur avec caisson(s) poreux
n° de priorité : EP20050370028 20050922 ; également publié en tant que : WO2007034048 (A1) 2007-03-29 ; EP1767913 (B1) 2011-05-18 ; AT510195 (T) 2011-06-15 ; EP1767913 (B9) 2011-09-2
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