Results 31 to 40 of about 49,161 (194)

Light modulated cnidocyte discharge predates the origins of eyes in Cnidaria

open access: yesEcology and Evolution, 2021
Complex biological traits often originate by integrating previously separate parts, but the organismal functions of these precursors are challenging to infer.
Natasha Picciani   +5 more
doaj   +1 more source

Haemlacria: A mini case series of a rare condition

open access: yesJournal of Family Medicine and Primary Care, 2021
Haemlacria is a rare condition which is not widely mentioned in literature. In this mini case series, we describe two cases with this presentation. Both the patients were women with unilateral presentation of haemlacria in the right eye.
Anita Ambasta   +4 more
doaj   +1 more source

Ocular Photosensitivity Analyzer: An Automated Instrument Designed to Determine Visual Photosensitivity Thresholds

open access: yes, 2021
Photophobia, also called visual photosensitivity is a debilitating symptom and is commonly associated with numerous ophthalmic and neurological pathologies including achromatopsia, dry eye, and traumatic brain injury.
Aguilar, Mariela
core   +2 more sources

Fotossensibilidade induzida pelo piroxicam.

open access: yesActa Médica Portuguesa, 1998
In Portugal, piroxicam is one of the most prescribed non-steroidal anti-inflammatory agents (NSAIDs) and is frequently associated to photosensitivity skin reactions, well known by all dermatologists.
P Varela   +4 more
doaj   +1 more source

Investigation into the photosensitivity of germanium-free antimony co-doped alumino-silicate optical fibres

open access: yes, 2004
Photosensitivity of different concentrations of antimony (Sb) codoped alumino-silicate optical fibres are analysed. Bragg gratings with index modulations of ~3 x 10-4 are reported.
Voo, N.Y.   +4 more
core   +2 more sources

HIV-associated photodermatitis in African populations

open access: yesFrontiers in Allergy, 2023
Photosensitive dermatoses are seen in 5% of HIV-infected persons. These include drug- and chemical-induced photoallergic and phototoxic reactions, chronic actinic dermatitis of HIV, photo lichenoid drug eruptions, and porphyria.
Thuraya Isaacs, Rannakoe Lehloenya
doaj   +1 more source

Variation for Photoperiod and Temperature Sensitivity in the Global Mini Core Collection of Sorghum

open access: yesFrontiers in Plant Science, 2021
Information on photoperiod and temperature sensitivity of sorghum germplasm is important to identify appropriate sources for developing cultivars with a broad adaptation.
Hari D. Upadhyaya   +3 more
doaj   +1 more source

Cavity-enhanced photosensitivity in As2S3 chalcogenide glass

open access: yes, 2010
Cavity-enhanced photosensitivity of As2S3 chalcogenide glass films is measured using planar micro-disk resonators.
J. Hu   +14 more
core   +1 more source

Polymorph-induced photosensitivity change in titanylphthalocyanine revealed by the charge transfer integral

open access: yesNanophotonics, 2019
The crystal form of semiconductor materials is keenly correlated with the photosensitivity of optoelectronic devices. Thus, understanding the crystal form-dependent photosensitivity mechanism is critical.
Li Xiaolong   +5 more
doaj   +1 more source

Automated photosensitivity enhancement in optical fiber tapers

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
An alternative technique that uses a flame-brush at high temperature to enhance UV light photosensitivity in an optical fiber is described. An extreme low-cost air aspirated propane-butane mini-torch is used, which produces a lower temperature flame than
Aleksander Sade Paterno   +2 more
doaj   +1 more source

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