Progress of proficiency testing in the leather field in China / Zhiding Huang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 107, N° 3 (05-06/2023)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 107, N° 3 (05-06/2023) . - p. 88-92 Titre : Progress of proficiency testing in the leather field in China Type de document : texte imprimé Auteurs : Zhiding Huang, Auteur ; Bo Zhang, Auteur ; Bin Li, Auteur ; Rui Wang, Auteur ; Xugen Feng, Auteur ; Tianming Zuo, Auteur Année de publication : 2023 Article en page(s) : p. 88-92 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Contrôle technique Cuirs et peaux -- Industrie -- Législation -- Chine Essais (technologie) Professionnalisme Qualifications professionnelles -- Attestation Qualité -- Contrôle Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Inspection and testing plays an important role in ensuring product quality and safety and in promoting product quality improvement. Proficiency Testing (PT) is not only an effective technology of quality control for inspection and testing institutions but also an important way to evaluate the ability of inspection and testing institutions. Furthermore, it is a major means available for the supervision and management of inspection and testing institutions by regulatory authorities. The working mechanism, development process and organisation of PT is described and the shortcomings of PT in Chinaʼs leather field are studied in this paper. Finally, suggestions to promote the high-quality and sustainable development of PT in the leather field are put forward, for the purpose of providing a research basis for strengthening the supervision of the inspection and testing industry and promoting the capacity improvement of inspection and testing institutions. Note de contenu : - OVERVIEW OF PT IN THE LEATHER INDUSTRY IN CHINA : Working mechanism of PT in China - Development process of PT in leather field in China - Organisation of PT - ANALYSIS OF ISSUE : The overall situation needs to be sorted out - The organisational mode and use of PT results is inconsistent - The number of PT items are insufficient - PROPOSAL : Evaluate the overall situation - Unified specification and shared information - Strengthen R&D and service supervision - Table 1 : Differences of PT organised by AMR and PTP - Table 2 : List of PT organised by CNCA in leather field in China - Table 3 : Summary of PT organised by PTP in leather field En ligne : https://drive.google.com/file/d/1pHmXhptW5eIJrpF1C44Ec0vD4k2XotNE/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39578 [article]

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Scalp hair loss is not random across follicular units : A new insight into human hair ageing / Junyu Luo in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 45, N° 4 (08/2023)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 45, N° 4 (08/2023) . - p. 548-555 Titre : Scalp hair loss is not random across follicular units : A new insight into human hair ageing Type de document : texte imprimé Auteurs : Junyu Luo, Auteur ; Qili Qian, Auteur ; Wenxin Zheng, Auteur ; Ieva Gripkauskaite, Auteur ; Sijie Wu, Auteur ; Min Zhang, Auteur ; Jinxi Li, Auteur ; Bingfei Fu, Auteur ; Ranjit Bhogal, Auteur ; Peter Murray, Auteur ; Matthew Rowson, Auteur ; Bin Li, Auteur ; Xiangyang Xue, Auteur ; Xuelan Gu, Auteur ; Yajun Yang, Auteur ; Li Jin, Auteur ; David Andrew Gunn, Auteur ; Sijia Wang, Auteur Année de publication : 2023 Article en page(s) : p. 548-555 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cheveux -- Croissance Cheveux -- Vieillissement Dermatologie Différences entre sexes Modèles numériques Index. décimale : 668.5 Parfums et cosmétiques Résumé : - Objectives : Scalp hair has the greatest number of hairs (typically 1–5) per follicular unit but is also the most susceptible body site to hair loss with age. Hence, we set-out to determine the degree to which scalp hair parameters change with age in women and men, any sex differences thereof and whether hair loss is random across follicular units. - Methods : A retrospective cross-sectional study of 200 Chinese men and 200 Chinese women (30–69 years). Image analysis and manual counting methods were used to measure occipital located hair parameters from 6 × 8 mm shaved scalp photographs and plucked hair microscopy images. - Results : Of the five hair parameters, the number of hairs per follicular unit had the greatest (negative) correlation with age in both men and women. Men had a greater number of hairs and follicular units than women on average but had a greater decrease in the number of hairs per follicular unit with age, particularly for the loss of multi-hair (3+) follicular units. The loss of hairs with age was significantly different to that expected by a random loss of hairs across follicular units and better described by a model of increased hair loss risk the greater number of hairs per follicular unit. - Conclusions : We have found evidence of hair loss preferentially occurring in multi-hair follicular units, which was more pronounced in men. These data suggest that part of the reason scalp hair is more susceptible to hair loss than on other body sites is due to the greater presence of multi-hair follicular units on the scalp. Note de contenu : - MATERIALS AND METHODS : Subject selection - Measurement of hair parameters - Data analyses - Modelling loss of hair fibres - RESULTS : Hair parameters and sex differences - Hair parameter changes with age - Hairs per follicle unit and their change with age - Table 1 : Hair parameter characteristics by sex DOI : https://doi.org/10.1111/ics.12851 En ligne : https://drive.google.com/file/d/1MEvrUCIkxUsepl_tUSKwAAZPrRfuR7dB/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39885 [article]

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