Results 51 to 60 of about 306,099 (237)
Synthesis and acid resistance of maya blue pigment [PDF]
Archaeometry 48, 1 (2006) 115-130, 2012 Maya blue is an organo-clay artificial pigment composed of indigo and palygorskite. It was invented and frequently used in Mesoamerica in ancient times (eighth to 16th centuries). We analyse in this paper one of the characteristics of Maya blue that has attracted the attention of scientists since its rediscovery in 1931: its high stability against ...
arxiv +1 more source
Dermoscopic findings of the evolving pigmented Spitz nevus in a child
Dermatology Practical & Conceptual, 2022 According to the Authors Guidelines in case of image letters no abstract should be provided.
Joanna Pogorzelska-Dyrbuś +1 more
openaire +3 more sources
BMJ Case Reports, 2013 Pigmented epithelioid melanocytoma (PEM) is a recently proposed term which encompasses those melanocytic tumours previously designated as ‘animal-type melanoma’ or ‘pigment-synthesising melanoma’ and ‘epithelioid blue nevus’, the latter known to be ...
P. Gavriilidis +3 more
semanticscholar +1 more source
Nanoscale cuticle mass density variations influenced by pigmentation in butterfly wing scales [PDF]
arXiv, 2023 How pigment distribution influences the cuticle density within a microscopic butterfly wing scale, and how both impact final reflected color remains unknown. We used ptychographic X-ray computed tomography to quantitatively determine, at nanoscale resolutions, the three-dimensional mass density of scales with pigmentation differences.
arxiv
A non-linear irreversible thermodynamic perspective on organic pigment proliferation and biological evolution [PDF]
J. Phys.: Conf. Ser. 475 012010, 2013, 2013 The most important thermodynamic work performed by life today is the dissipation of the solar photon flux into heat through organic pigments in water. From this thermodynamic perspective, biological evolution is thus just the dispersal of organic pigments and water throughout Earth's surface, while adjusting the gases of Earth's atmosphere to allow the
arxiv +1 more source
Pediatric dermatology, 2012 : SCALP syndrome is an acronym describing the coincidence of sebaceous nevus syndrome, central nervous system malformations, aplasia cutis congenita, limbal dermoid, and pigmented nevus (giant congenital melanocytic nevus).
C. Hsieh +4 more
semanticscholar +1 more source
Turner syndrome presenting with idiopathic regression: A case report
, 2022 Psychiatry and Clinical Neurosciences, Volume 76, Issue 12, Page 680-682, December 2022.
Kosuke Mizobuchi +5 more
wiley +1 more source
Energies, 2020 Cryogen spray cooling (CSC) could be applied clinically for the laser therapy of Ota’s nevus, a dermal hyperplastic pigmented disease with a morbidity rate of 0.1–0.6% in the Asian population.
Jiameng Tian +3 more
semanticscholar +1 more source
A Pilot Study to Evaluate Neurodevelopmental Outcomes in a Pediatric Cohort With Genodermatoses
American Journal of Medical Genetics Part A, EarlyView.ABSTRACT Our study aimed to evaluate cognitive function in individuals with genetic skin disorders involving neuroectoderm (n = 8) compared to individuals with only ectoderm or mesoderm (n = 16) involvement. We hypothesized that neuroectodermal involvement would result in poorer neurocognitive performance.
Sneha A. Rangu +10 more
wiley +1 more source
Deep penetrating nevus: a case report and brief literature review
Diagnostic Pathology, 2006 Background - Deep penetrating nevus (DPN) is a distinct variant of melanocytic nevus and remains a histopathologic challenge to pathologists because of its resemblance to blue nevus, malignant melanoma, pigmented Spitz nevus, and congenital melanocytic ...
Dang Linh M +3 more
doaj +1 more source