Results 41 to 50 of about 134,357 (248)

Gingival Pigmentation and Its Association with Skin Complexion and Periodontal Status Among Patients Attending a Tertiary Hospital in Nigeria: A Cross-Sectional Study

Nigerian Dental Journal
Introduction: Gingival color varies among different races and can be affected by a number of factors including pigmentation. Gingival pigmentation is of aesthetic concern in some individuals and has been linked to skin complexion.
Grace Alade, Ayodele Ogundana
doaj   +1 more source

Impact of gingival pigmentation on laypersons’ perception of smile aesthetics: an observational study [PDF]

Exploration of Medicine
Aim: The study aims to assess laypersons’ perceptions of smile aesthetics before and after gingival depigmentation and to correlate these perceptions with the degree of gingival pigmentation.
Preethi Raj, Shweta Nagesh, Ramanarayana Boyapati   +2 more
doaj   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

Acral melanosis

Pigment International, 2018
The term “acral” means the distal portions of the limbs (hand, foot) and the head (ears, nose). The term acral melanosis is loosely applied to an increase in melanin pigmentation, in a diffuse, reticulate, or focal pattern over the distal parts of the ...
Mala Bhalla, Shimona Garg
doaj   +1 more source

The repeated evolution of stripe patterns is correlated with body morphology in the adaptive radiations of East African cichlid fishes

Ecology and Evolution, 2022
Color patterns are often linked to the behavioral and morphological characteristics of an animal, contributing to the effectiveness of such patterns as antipredatory strategies.
Sabine Urban, Jan Gerwin, C. Darrin Hulsey, Axel Meyer, Claudius F. Kratochwil   +4 more
doaj   +1 more source

Pigment Gallstones

Gastroenterology, 1977
Pigment gallstones are defined as any dark brown-to-black stone, consisting of calcium salts of bilirubin, phosphate, carbonate and other anions, and can be separated into carbonate- and noncarbonate-containing groups. Pigment stones predominate in the rural Orient, in cirrhosis, and in elderly United States patients undergoing cholecystectomy ...
R D, Soloway, B W, Trotman, J D, Ostrow
openaire   +2 more sources

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

Advanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco, Valerio Francesco Annese, Valerio Galli, Ilaria Penna, Debora Russo, Marina Veronesi, Rita Scarpelli, Stefania Sabella, Mario Caironi   +8 more
wiley   +1 more source

Análise da capacidade de remoção de pigmentos da resina composta pelo peróxido de hidrogênio 35%

Revista de Odontologia da UNESP
Resumo Objetivo Avaliar in vitro a capacidade de remoção de pigmentos ocasionados em resina composta após aplicação de peróxido de hidrogênio 35%. Material e método Confeccionaram-se 20 amostras de resina composta Opallis (FGM), cor A1, em matriz ...
Eveline Claudia MARTINI, Fabiana Madalozzo COPPLA, Alessandra REIS, Abraham Lincoln CALIXTO   +3 more
doaj   +1 more source

Cis-regulatory evolution integrated the Bric-à-brac transcription factors into a novel fruit fly gene regulatory network

eLife, 2018
Gene expression evolution through gene regulatory network (GRN) changes has gained appreciation as a driver of morphological evolution. However, understanding how GRNs evolve is hampered by finding relevant cis-regulatory element (CRE) mutations, and ...
Maxwell J Roeske, Eric M Camino, Sumant Grover, Mark Rebeiz, Thomas Michael Williams   +4 more
doaj   +1 more source