Search Results (3)

Synthetic organic dyes were extensively used by artists in the first half of the 20th century, knowingly or otherwise. This included Andy Warhol and his À la Recherche du Shoe Perdu (c. 1955), a major portfolio of hand-colored prints, a copy of which resides in the collection of The Museum of Modern Art (MoMA). Warhol and his friends were known to use Dr. Ph. Martin’s Synchromatic Transparent Water Colors to bring these prints to life. A historical set of Synchromatic Transparent Watercolors were initially investigated by UV-visible spectroscopy, and samples from the historic set were also characterized by µ-Fourier transform infrared spectroscopy for fingerprint identification. To better elucidate the nature of the mixtures present, thin-layer chromatography was coupled with surface-enhanced Raman spectroscopy to separate the components of all colorants in the set. The dyes decisively identified include Acid Red 73, Acid Red 87, Acid Red 17, Acid Red 103, Basic Red 1, Acid Orange 7, Acid Yellow 23, Acid Green 1, Basic Green 4, Acid Blue 3, Acid Blue 93, Basic Violet 3, Basic Violet 10, Basic Violet 17, and Acid Black 2. Overall, Acid Blue 3, along with Acid Orange 7 and Acid Black 2, were found in the greatest number of dyes in the Dr. Ph. Martin’s set. Data from the historic set was subsequently used for direct comparison with reflectance spectra from the Warhol portfolio using principal component analysis. Microfade testing on a Synchromatic Transparent Watercolors brochure was also conducted to identify fugitive colorants, the results of which were extrapolated to each of the prints in the Warhol portfolio. The analysis provided further insight into the dyes used in À la Recherche du Shoe Perdu and confirmed the extreme light sensitivity of some colorants and the fastness of others. Full article

Recent advances in medical interventions have changed the prognosis for children with infantile-onset spinal muscular atrophy (SMA-1); however, little has been published regarding rehabilitation management. A rapid scoping review was conducted in November 2020 using Medline and CINAHL databases. Evidence supporting use of assistive devices and equipment to enhance participation, mobility, function, and posture in lying, sitting, and standing positions was sought. From 239 articles, only five studies (describing use of augmentative communication, manual and power mobility, supported standing and orthotic devices) met inclusion criteria. Results are presented alongside a case report of a 5-year-old boy (treated with Nusinersen since 7 months-of-age) who uses a variety of devices to enhance his activity and participation in family life. While reclined and tilted sitting positions as well as power mobility were previously considered for children with SMA-1, this child has progressed to supported upright standing, self-propelling a lightweight manual wheelchair indoors, communicating using multiple methods and taking steps in a dynamic mobility device. Power mobility was introduced in a switch-adapted cart at 11 months and he was independently exploring indoors and outside in his power wheelchair before 20 months. Research evidence is limited, but alongside the case report highlights the importance of a comprehensive and proactive approach to enhancing function, fun and participation with family and friends through adaptive equipment for children with significant and life-limiting disabilities. Full article

The collection of papers dedicated to Marvin Charton that we present in this special issue of IJMS covers a variety of fields of scientific research and well represents his wide range of interests – all the contributors are his friends or users of his ideas and the results of his scientific work and have often also been partners in subtle and very fruitful discussions with Marvin.[...] Full article