Napkin Dermatitis

Oranje, Arnold P.; Bonifazi, E.; Honig, Paul J.; Yan, Albert C.

doi:10.1002/9781119142812.ch20

Cited by 5 publications

(13 citation statements)

References 39 publications

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“…This stellar sample includes only stars with fundamental characteristics demonstrably similar to the Sun (Egeland 2017). Figure 5 shows F UV against F HK for the sample, roughly following well-known non-linear relationships found for very diverse samples of stars (Oranje 1986;Oranje & Zwaan 1985;Schrijver et al 1985;Schrijver 1995). But these linear fits in the log-log plane are not justified any more than, for example, a step function between the two groups of stars.…”

Section: Relationship To Younger Starsmentioning

confidence: 53%

“…A corollary of our work (in the Appendix) is that, when considering "flux-flux" relationships (Oranje 1986;Oranje & Zwaan 1985), one cannot mix spatiallyresolved data for the intensity of spectral features with those of unresolved fluxes from stellar disks, as done by (Schrijver et al 1985;Schrijver 1992Schrijver , 1995 for example. This is most easily seen by considering the passage of one active region across the disk of the Sun or a star.…”

Section: Discussionmentioning

confidence: 98%

“…For this pair of lines the value of γ can be estimated from known logarithmic dependences of Mg II (chromospheric) and transition region lines, where (Oranje 1986), γ ≈ 1.3. Using data from the F8 and G type dwarf stars in Table 2 of Oranje & Zwaan (1985) we would find that F Mg II ∝ S 1.8…”

Section: Well-known Statistical Correlations Exist Betweenmentioning

confidence: 99%

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The Magnetic Future of the Sun

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Egeland

Metcalfe

et al. 2017

ApJ

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We analyze space-and ground-based data for the old (7.0 ± 0.3 Gyr) solar analogs 16 Cyg A and B. The stars were observed with the Cosmic Origins UV Spectrographs on the Hubble Space Telescope (HST) on 23 October 2015 and 3 February 2016 respectively, and with the Chandra X-ray Observatory on 7 February 2016. Time-series data in Ca II data are used to place the UV data in context. The UV spectra of 18 Sco (3.7±0.5 Gyr), the Sun (4.6±0.04 Gyr) and α Cen A (5.4 +1.2 −0.2 Gyr), appear remarkably similar, pointing to a convergence of magnetic heating rates for G2 main-sequence stars older than ≈ 2 − 4 Gyr. But the B component's X-ray (0.3-2.5 keV) flux lies 20× below a well-known minimum level reported by Schmitt. As reported for α Cen A, the coronal temperature probably lies below that detectable in soft X-rays. No solar UV flux spectra of comparable resolution to stellar data exist, but they are badly needed for comparison with stellar data. Center-to-limb (C-L) variations are re-evaluated for lines such as Ca II through to X-rays, with important consequences for observing activity cycles in such features. We also call into question work that has mixed solar intensity-intensity statistics with flux-flux relations of stars.

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Section: Relationship To Younger Starsmentioning

confidence: 53%

Section: Discussionmentioning

confidence: 98%

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The Magnetic Future of the Sun

Judge

Egeland

Metcalfe

et al. 2017

ApJ

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“…Elderly people are more likely to develop dermatitis in winter, which occurs mainly due to the use of antiperspirants and deodorants [ 11 ]. Photosensitivity, skin cancer, and premature aging occur because of UV radiation, which has led to the increased use of UV filters in skin care products.…”

Section: Introductionmentioning

confidence: 99%

“…Photosensitivity, skin cancer, and premature aging occur because of UV radiation, which has led to the increased use of UV filters in skin care products. Hence, this becomes the main reason for an increased risk of photo contact allergy to UV filters [ 11 ]. Most of these cases are caused by the UVA-filtering benzophenone, dibenzoyl methane, isopropyl dibenzoyl methane, and butyl methoxy dibenzoyl methane.…”

Section: Introductionmentioning

confidence: 99%

Questionnaire-Based Study of 392 Women in Abbottabad, Pakistan, to Evaluate the Types of Cosmetic Products Purchased Between December 2018 and March 2019 and Their Associated Adverse Events

Nisar,

Ali,

Shahid

et al. 2024

Med Sci Monit Basic Res

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Background Cosmetics are applied topically to enhance appearance and are commonly used by women of all ages. Cosmetics contain many chemical agents, but the incidence of adverse reactions is low, possibly due to underreporting. This questionnaire-based study included 392 women to evaluate information on the types of cosmetics purchased between December 2018 and March 2019, their use by the women surveyed, and their associated adverse events. Material/Methods A cross-sectional study was conducted among 392 women in Abbottabad, Pakistan, using a pre-structured and validated questionnaire to evaluate information on the types of cosmetics, their use, and their associated adverse events. Part 1 of the study collected information about demographics. Part 2 contained a total of 11 items, and collected the frequency of use of cosmetic on skin and hair care products. Part 3 consisted of 4 items and collected information about problems encountered due to the use of cosmetics. Results In the winter season, 47.7% (n=187) of women preferred chemical-based cosmetic products, while 30.9% (n=121) preferred Ayurvedic products. Among commonly used cosmetic products, 26.9% (n=106) of women used foundations. The most frequently used skin care product was face wash 39.5% (n=155). The most prevalent adverse events related to cosmetics were pimples (19.9%, n=78), redness (17.6%, n=69), and eye discomfort (15.8%, n=62). Furthermore, 51.3% (n=201) strongly agreed that cosmetics aid in getting a whiter complexion. Conclusions The survey concluded that most women preferred cosmetics with a chemical base, which are associated with rashes, redness, and acne. It is important to encourage cosmetovigilance and awareness campaigns among cosmetic product sellers and users.

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