Results 61 to 70 of about 8,027 (200)

Moonlight Duration and Intensity Favour Nocturnal Activity in a Diurnal Desert Bird

open access: yesEthology, Volume 132, Issue 9, Page 629-641, September 2026.
Accelerometer data show that Canarian houbara bustards increase nocturnal activity two‐ to fivefold when the moon is visible, with activity rising as moonlit duration and illumination increase. Both display and non‐display behaviours peaked around full moon, reaching up to half of peak daytime levels, with males increasing visual displays during ...
Juan C. Alonso   +3 more
wiley   +1 more source

Assessment of Interior General and Local Lighting in Carpet Weaving Workshops in Bijar City

open access: yesMuhandisī-i bihdāsht-i ḥirfah/ī, 2014
Background & Objectives : The comfort lighting in the workplace provides employees visual health which can improve safety, visual comfort and enhance performance and product quality.
Rostam Golmohamadi   +3 more
doaj  

Objective Measurement of Tooth Color Using Spectrophotometry and ICDAS: Quantifying CIELAB Color Changes Across Caries Severity

open access: yesJournal of Esthetic and Restorative Dentistry, Volume 38, Issue 9, Page 1802-1813, September 2026.
ABSTRACT Objective The International Caries Detection and Assessment System (ICDAS) is widely used for early caries detection but relies on visual interpretation. Although spectrophotometry objectively quantifies tooth color, variation across ICDAS categories and its relationship with lesion severity remain unclear. The present in vitro study therefore
Farah Rashid, James Dudley
wiley   +1 more source

Daylight Performance Evaluation of Parametric Facades Inspired by Kinetic Systems

open access: yesJournal of Architectural Sciences and Applications
Parametric facade models and daylight analyses have been performed. 4 different kinetic facade examples have been examined for parametric facade models The selected examples are; Penumbra – A Kinetic Daylighting and Shading System, One Ocean Thematic ...
Merve Savrunlu, Türkan İrgin Uzun
doaj   +1 more source

Comparative Analysis of All-Sky Luminous Efficacy Models Based on Calculated and Measured Solar Radiation Data of Four Worldwide Cities

open access: yesInternational Journal of Photoenergy, 2018
Luminous efficacy model uses solar radiation data to generate illuminance data, and its performance also depends on the quality of solar radiation data.
Donghyun Seo
doaj   +1 more source

Impact of Human Melanopsin Gene (OPN4) Polymorphisms (I394T, P10L) on Nocturnal Melatonin and Daily Rhythms in Young Adults

open access: yesJournal of Pineal Research, Volume 78, Issue 5, September 2026.
ABSTRACT The present study investigates the impact of two missense SNPs in the human melanopsin gene OPN4 ‐I394T (rs1079610) and P10L (rs2675703)‐ on non‐image‐forming (NIF) physiological and behavioural outputs in healthy young adults under real‐world conditions.
Jesús Vicente‐Martínez   +5 more
wiley   +1 more source

Enhancing legibility in educational settings: Optimizing projection illuminance for varied indoor ambient illuminance

open access: yesHeliyon
Projectors are common display devices in the educational setting. However, dim projector lightbulbs or well-lit classrooms may cause blurriness in the projected image.
Zhengyin Gu   +8 more
doaj   +1 more source

Environmental Modulation of Physiological Parameters in the Paediatric Intensive Care Unit After Extracorporeal Cardiac Surgery

open access: yesNursing in Critical Care, Volume 31, Issue 5, September 2026.
ABSTRACT Background The paediatric intensive care unit exposes critically ill children to non‐physiological environmental stimuli, such as noise, artificial light and thermal instability, which may interfere with physiological regulation and circadian organization. Aim To examine how environmental conditions in the paediatric intensive care unit (PICU),
Luna López‐Coleto   +14 more
wiley   +1 more source

Intelligent Office Lighting Control Using Natural Light and a GA-BP Neural Network-Based System

open access: yesApplied Sciences
Intelligent lighting control systems are essential for regulating office illumination. Both illuminance levels and uniformity are important factors influencing the comfort of the office lighting environment.
Rongmeng Zhang   +7 more
doaj   +1 more source

Illuminating labyrinths

open access: yesDiscrete Applied Mathematics, 2004
A labyrinth is defined as a set of line segments \(L\) with pairwise disjoint relative interiors and their complement \(E^{2}\diagdown \bigcup L\) connected. In the paper the variants of the illumination problem previously considered for disjoint line segments are presented and analogous lower and upper bounds for minimum number of light sources ...
openaire   +2 more sources

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