Search results for "Cosmetic"

Estudio arqueológico y arqueométrico de restos de cosméticos hallados en una píxide malacológica en Augusta Emerita (Mérida, Badajoz)

2019

En el presente artículo se da a conocer un hallazgo excepcional localizado en una de las áreas funerarias de la antigua capital de la Lusitania, Augusta Emerita. Concretamente se analizan funcional, tipológica y arqueométricamente una pixide malacológica que contenía durante el momento de su exhumación restos de su contenido. Además se aprovecha la ocasión para realizar un análisis contextual del hallazgo y se pone en relación con el fenómeno del cuidado femenino en época romana

Authenticity as a mental state: A primer

2014

Highlights Philosophy of mind offers a new philosophical foundation for authenticity. Philosophy of mind studies mental states, whose defining property is intentionality. Intentionality is an essential trait in any characterization of authenticity. Experiencing authenticity is a mental state. Authenticity’s role as a theoretical construct is strengthened and amplified.

Zīmola ietekme uz pircēju rīcību patēriņa tirgū: MÁDARA UN Bio2You salīdzinājums.

2021

Bakalaura darbu veido trīs nodaļas, kā arī ievads, secinājumi, priekšlikumi, izmantotās literatūras un avotu saraksts un pielikumi Pirmajā nodaļā autore veica pētāmā jautājuma teorētisko pamatojumu, noskaidrojot zīmola teoriju un ietekmi uz pircēju. Otrajā nodaļā autore izpētīja uzņēmumu “Madara Cosmetics” un ”B2Y” uzņēmuma darbību un salīdzināja zīmolu “MÁDARA” un “Bio2You” veidojošos elementus. Trešajā nodaļa autore veica pētījumu, kurā tika veikta aptauja un intervijas ar diviem mārketinga nozares pārstāvjiem. Nobeigumā ir izstrādāti secinājumi un sniegti priekšlikumi, izmantotās literatūras saraksts un pielikumi. Darbs sastāv no 69 lapām, 4 tabulām, 33 attēliem un 3 pielikumiem.

Determination of Phenolic Endocrine Disruptors in Cosmetics by High-Performance Liquid Chromatography Mass Spectrometry

2017

An analytical method for the simultaneous determination of bisphenol A, 4-t-octylphenol, 4-n-octylphenol, and 4-n-nonylphenol in cosmetic samples has been developed. These compounds have toxic effe...

Quality and Efficacy of Tribulus terrestris as an Ingredient for Dermatological Formulations

2013

Tribulus terrestris L. (Zygophyllaceae) is an annual plant commonly known as Puncture vine. It is dramatically gaining interest as a rich source of saponins. T. terrestris is a promising ingredient for many industries and recent patents on dermatological applications support the use of this plant for cosmetics and hygiene. Nonetheless problems arise in the selection of the material to be used. The extracts of different origins may differ substantially. Natural speciation processes normally influence ‘variations’ in wild-crafted medicinal plants. The genus Tribulus is emblematic. Taxonomic status of T. terrestris is complicated by the wide geographical distribution leading to high levels of…

UV Filters in Sunscreens and other Cosmetics. Regulatory Aspects and Analytical Methods

2007

Near-critical carbon dioxide extraction and liquid chromatography determination of UV filters in solid cosmetic samples: A green analytical procedure

2005

Near-critical carbon dioxide extraction of four UV filters used as sunscreens in lipsticks and makeup formulations is reported. Extraction parameters were optimized. Efficient recoveries were obtained after 15 min of dynamic extraction with a 80:20 CO2/ethanol mixture at 300 atm and 54 degrees C, using a 1.8 mL/min flow rate. Extracts were collected in ethanol, and appropriately diluted with ethanol and 1% acetic acid to obtain a 70:30 v/v ethanol/1% acetic acid solution. The four UV filters were determined by LC with gradient elution using ethanol/1% acetic acid as mobile phase. The accuracy of the analytical procedure was estimated by comparing the results with those obtained by methods b…

Sunscreen analysis

2005

Although there are no official analytical methods for UV filters determination in sunscreen cosmetics, their maximum content are regulated by legislation, and then analytical methods to control these products are necessary. In this paper, analytical methods for UV filters determination in cosmetics, which can be found in the literature, are reviewed. The usefulness of the analytical methods, techniques and sample preparation is discussed. The analytical methods used for the determination of UV filters in other type of samples are commented upon. Moreover, a brief overview of the European Union legislation concerning UV filters is included.

Stopped-flow Fourier-transform infra-red spectrometric speciation of glycolic and lactic acids in cosmetic formulations

2001

The dermatological activity of cosmetic formulations containing alpha-hydroxyacids depends on their different chemical forms, and it is therefore useful to determine these species in the finished products. In the present report a new procedure for studying the protonation equilibria of glycolic and lactic acids by stopped-flow Fourier-transform infra-red (FTIR) spectrometry is described. The procedure was validated for use in the speciation of glycolic and lactic acids in cosmetic formulations, with preferential attention given to glycolic acid, which is the most widely used. Species of these alpha-hydroxyacids can be approximately determined at different pHs and the total content of each a…

Floor of the mouth hemorrhage subsequent to dental implant placement in the anterior mandible

2019

María Peñarrocha-Diago,1 José Carlos Balaguer-Martí,1 David Peñarrocha-Oltra,1 José Bagán,1 Miguel Peñarrocha-Diago,1 Dennis Flanagan2,31Department of Stomatology, University of Valencia, Valencia, Spain; 2Department of Dental Medicine, Lugano University of Switzerland, Lugano, Switzerland; 3Private Practice, Willimantic, CT, USAAbstract: Complications in dental implant surgery are possible. Bleeding complications have been described that may be serious, particularly in the floor of the mouth. We present two cases of sublingual hematomas during dental implant osteotomies that impeded but did not close th…