Results 181 to 190 of about 157,489 (314)

From plant to fabric: Environmental opportunities associated with annatto dye for sustainable development in the textile industry

open access: yesColoration Technology, EarlyView.
Abstract Natural dyes are compounds that occur naturally in several organisms and are classified based on chemical structure and application method. The literature cites several natural dyes used in industrial transformation processes. Annatto dye is used in the food industry, and its biological pigment is extracted from the annatto seed. However, this
Marcel Jefferson Gonçalves   +5 more
wiley   +1 more source

Defining the geographical level of competition: a taxonomy of industry tradability

open access: yesEconomica, EarlyView.
Abstract The paper develops a taxonomy of industry tradability to define the geographical level at which competition takes place. First, it creates a novel dataset that combines production and international trade data for both goods and services industries, defined at a detailed (3‐digit) level of industry aggregation for 15 European countries.
Sara Calligaris   +4 more
wiley   +1 more source

Chasing the perfida Albione: Anglo‐Italian productivity gap in the late 1930s

open access: yesThe Economic History Review, EarlyView.
Abstract This paper presents new estimates of Anglo‐Italian labour productivity levels in manufacturing in the late 1930s, derived using the standard single‐deflation approach. The findings confirm a substantial productivity gap between Italy and the United Kingdom at the aggregate level, alongside pronounced intersectoral heterogeneity.
Tancredi Salamone
wiley   +1 more source

Technical Quality and Students' Perception of Endodontic Preclinical Training Using Natural or LikeReal Artificial Teeth

open access: yesEuropean Journal of Dental Education, EarlyView.
ABSTRACT Introduction This study evaluated and compared the technical quality of treatments performed during the preclinical training using artificial and natural teeth and the students' perceptions regarding their learning process with the 2 groups. Materials and Methods The study assessed the teeth used for preclinical training by 2nd‐year students ...
Gabriela Biagioni   +2 more
wiley   +1 more source

2021 IAS Pulp and Paper Industry Conference Paper Status [PDF]

open access: yes2021 IEEE IAS Pulp and Paper Industry Conference (PPIC), 2021
openaire   +1 more source

Fatigue behaviour of root filled teeth: The role of endodontic sealers and restorative techniques

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract This in vitro study aimed to evaluate the fatigue behaviour of root canal treated teeth, filled with either AH Plus Jet (AHP) or AH Plus Bioceramic Sealer (AHPB) and rehabilitated with either mesio‐occlusal‐distal (MOD) restorations (direct resin composite) or endocrowns (indirect resin composite).
Andressa Weber Vargas   +5 more
wiley   +1 more source

Preparation and Properties of Waste Polypropylene/ Bamboo Fiber Composite

open access: yesBioResources
With the continuous increase of waste PP plastics, how to recycle and reuse waste PP has become particularly important. In this study, waste PP and bamboo fiber (BF) were used as raw materials. The effects of bamboo fiber mesh size, bamboo fiber content,
Miaoyun Wang   +7 more
doaj  

Physicochemical and remineralisation properties of calcium silicate and glass ionomer cements applied in simulated caries‐affected dentine

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract Calcium silicate‐based and glass ionomer cements are often used in caries‐affected dentine. This study investigated the remineralising and physicochemical properties of two calcium silicates and a glass ionomer cement. Human molars with Class I cavities were subjected to pH cycling to simulate caries lesions.
Monika Lukomska‐Szymanska   +7 more
wiley   +1 more source

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