Results 31 to 40 of about 1,600,988 (305)
Breaking the 2ⁿ Barrier for 5-Coloring and 6-Coloring [PDF]
, 2021 The coloring problem (i.e., computing the chromatic number of a graph) can be solved in O^*(2ⁿ) time, as shown by Björklund, Husfeldt and Koivisto in 2009. For k = 3,4, better algorithms are known for the k-coloring problem. 3-coloring can be solved in O(
Zamir, Or
core +1 more source
Evaluation of resin composite staining by beverages with acid pH
RGO: Revista Gaúcha de Odontologia, 2022 Introduction: Composite resins are an extensively used esthetic material that has excellent adaptation, reproduces the characteristics of the tooth structure and is suitable for the conditions of the oral environment.
Rayssa Amaral VIEIRA +4 more
doaj +1 more source
Use of the Patent Blue and Air in the Preoperative Marking of Impalpable Breast Lesions
European Journal of Breast Health, 2019 Objective:The goal of this study is to analyze the applicability of the patent blue dye and air in the preoperative marking of impalpable mammary lesions with indication of surgical resection.Materials and Methods:A prospective cohort study was performed.
Walberto Monteiro Neiva Eulálio Filho +4 more
doaj +1 more source
Clean beauty: definitions, distinctions among natural, organic, and vegan cosmetics, and experimental evidence on endocrine disruptors in cosmetics [PDF]
Surgical & Cosmetic DermatologyIn recent years, the demand for eco-friendly cosmetics formulated with safer and more sustainable ingredients has driven the expansion of the global market. The concept of clean beauty has evolved into a philosophy that requires transparency, safety, and
Pedro Vargas +4 more
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Color Stability Evaluation of Different Posterior Composites
Essentials of Dentistry, 2023 Objective: The aesthetic success of composite resins is directly related to surface roughness and color stability. External discolorations on the composite restoration surface due to plaque accumulation or coloring agents can be easily removed from the ...
Azize Demir +2 more
doaj +1 more source
Chemosensors, 2019 This work provides a summary of our results in the area of the experimental development of detection paper for the detection of liquid phase chemical warfare agents (drops, aerosol), the presence of which is demonstrated by the development of ...
Vladimír Pitschmann +5 more
doaj +1 more source
Revista de Odontologia da UNESP, 2020 Introduction Obtaining the result expected during tooth bleaching requires a correct diagnosis of the type of staining presented. The causes of tooth staining differ depending on the etiological factor. Objective To assess the color change caused by the
João Victor Frazão CÂMARA +4 more
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The Influence of Raw Materials on the Stability of Grisaille Paint Layers
Applied Sciences, 2022 Grisaille is a glass-based paint made by mixing metal oxides (iron or copper) with ground lead-silica glass. The different materials used in the grisailles production (coloring agents, base glasses, or vehicles) can significantly impact their long-term ...
Carla Machado +3 more
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Effect of different solutions on color stability of acrylic resin-based dentures
Brazilian Oral Research, 2014 The aim of this study was to evaluate the effect of thermocycling and immersion in mouthwash or beverage solutions on the color stability of four different acrylic resin-based dentures (Onda Cryl, OC; QC20, QC; Classico, CL; and Lucitone, LU).
Marcelo Coelho Goiato +4 more
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EVALUATION OF INTRINSIC COLOR STABILITY OF FACIAL SILICONE ELASTOMER REINFORCED WITH DIFFERENT NANOPARTICLES [PDF]
Alexandria Dental Journal, 2016 NTRODUCTION: Maxillofacial defects are located in a highly visible body area that is identified with one’s identity. An aesthetic and comfortable maxillofacial prosthesis relieves many concerns of the patient and may improve quality of life.
Abushelib Moustafa N. +2 more
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