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Author (up) Babadi, S.; Ramirez-Inguiez, R.; Boutaleb, T.; Mallick, T.
Title Producing uniform illumination within a rectangular area by using a nonimaging optic Type Journal Article
Year 2018 Publication Applied Optics Abbreviated Journal Appl. Opt.
Volume 57 Issue 31 Pages 9357
Keywords Lighting
Abstract This paper proposes a new design method to create a novel optical element to generate uniform illumination within a rectangular area. Based on this model, an illuminated area is irradiated by two sets of rays; the first one irradiates the target plane after refraction from the top section of the lens, and the second one irradiates from the reflection at the side profile of the lens and then from refraction at the top part of the lens. The results show that a uniformity of over 90% can be achieved.
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Series Volume Series Issue Edition
ISSN 1559-128X ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2046
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Author (up) Babaii, A., Adib-Hajbaghery, M., & Hajibagheri, A.
Title Effect of Using Eye Mask on Sleep Quality in Cardiac Patients: A Randomized Controlled Trial. Type Journal Article
Year 2015 Publication Nursing and Midwifery Studies Abbreviated Journal
Volume 4 Issue 4 Pages
Keywords Human Health
Abstract BACKGROUND:

Patients in coronary care unit are at risk of sleep deprivation. Sleep deprivation can be associated with increased blood pressure and heart rate, raising the risk of developing cardiovascular problems among patients hospitalized in coronary care unit.

OBJECTIVES:

This study was carried out to examine the effect of eye mask on sleep quality in cardiac patients.

PATIENTS AND METHODS:

In this randomized controlled trial, 60 patients who met the inclusion criteria were selected using a convenient sampling method and randomly allocated into the experimental and control groups. Patients in the control group received routine care. However, in the experimental group, patients received routine care and eye mask for three subsequent nights. In the both groups, the sleep quality was assessed using the Pittsburgh sleep quality index. Data were analyzed by the chi-square test, independent samples t-test, Mann-Whitney U, and Wilcoxon signed-rank tests.

RESULTS:

After the study, the median scores of the subjective sleep quality, the sleep latency, the sleep duration, the habitual sleep efficiency, and the sleep disturbances domains, as well as the median score of overall Pittsburgh sleep quality index in the experimental group were significantly lower than those in the control group (P < 0.05). However, no significant differences were observed between the two groups in terms of the use of sleep medications and the daytime dysfunction domains (P > 0.05).

CONCLUSIONS:

Using eye mask can significantly improve the sleep quality in cardiac patients. Therefore, nurses are recommended to use eye mask in combination with current treatments for improving patients' sleep quality.
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Call Number IDA @ intern @ Serial 2303
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Author (up) Baekelandt, S.; Milla, S.; Cornet, V.; Flamion, E.; Ledore, Y.; Redivo, B.; Antipine, S.; Mandiki, S.N.M.; Houndji, A.; El Kertaoui, N.; Kestemont, P.
Title Seasonal simulated photoperiods influence melatonin release and immune markers of pike perch Sander lucioperca Type Journal Article
Year 2020 Publication Scientific Reports Abbreviated Journal Sci Rep
Volume 10 Issue 1 Pages 2650
Keywords Animals
Abstract Melatonin is considered as the time-keeping hormone acting on important physiological functions of teleosts. While the influence of melatonin on reproduction and development is well described, its potential role on immune functions has little been considered. In order to better define an immune modulation by the melatonin hormone, we hypothesized that natural variations of photoperiod and subsequent changes in melatonin release profile may act on immune status of pikeperch. Therefore, we investigated during 70 days the effects of two photoperiod regimes simulating the fall and spring in western Europe, on pikeperch physiological and immune responses. Samples were collected at 04:00 and 15:00 at days 1, 37 and 70. Growth, plasma melatonin levels, innate immune markers and expression of immune-relevant genes in head kidney tissue were assessed. While growth and stress level were not affected by the seasonal simulated photoperiods, nocturnal levels of plasma melatonin were photoperiod-dependent. Innate immune markers, including lysozyme, complement, peroxidase and phagocytic activities, were stimulated by the fall-simulated photoperiod and a significant correlation was made with plasma melatonin. In addition to bring the first evidence of changes in fish immunocompetence related to photoperiod, our results provide an additional indication supporting the immunomodulatory action of melatonin in teleosts.
Address Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, University of Namur, Rue de Bruxelles 61, Namur, B-5000, Belgium
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2045-2322 ISBN Medium
Area Expedition Conference
Notes PMID:32060347; PMCID:PMC7021833 Approved no
Call Number GFZ @ kyba @ Serial 2942
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Author (up) Bagci, S.; Sabir, H.; Muller, A.; Reiter, R.J.
Title Effects of altered photoperiod due to COVID-19 lockdown on pregnant women and their fetuses Type Journal Article
Year 2020 Publication Chronobiology International Abbreviated Journal Chronobiol Int
Volume in press Issue Pages in press
Keywords Human Health; Covid-19; circadian disruption; fetus; lockdown; melatonin; pregnant Women
Abstract Maternal circadian rhythms provide highly important input into the entrainment and programming of fetal and newborn circadian rhythms. The light-dark cycle is an important regulator of the internal biological clock. Even though pregnant women spend a greater part of the day at home during the latter stages of pregnancy, natural light exposure is crucial for the fetus. The current recommended COVID-19 lockdown might dramatically alter normal environmental lighting conditions of pregnant women, resulting in exposure to extremely low levels of natural daylight and high-intensity artificial light sources during both day and night. This article summarizes the potential effects on pregnant woman and their fetuses due to prolonged exposure to altered photoperiod and as consequence altered circadian system, known as chronodisruption, that may result from the COVID-19 lockdown.
Address Department of Cell Systems and Anatomy, UT Health San Antonio , San Antonio, Texas, USA
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Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN 0742-0528 ISBN Medium
Area Expedition Conference
Notes PMID:32519912 Approved no
Call Number GFZ @ kyba @ Serial 3007
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Author (up) Bailey, F.; Sparks, C.P.; Seabrook, A.H.; Vignoles, W.A.; Trotter, A.P.; Gaster, L.; Cooper, W.R.; Shaw, C.M.; Morris, J.T.; Russell, C.N.; Edgcumbe, K.; Boot, H.L.P.; Dow, J.S.; Fedden, S.E.; Mackenzie, J.D.; Sexton, F.P.; Wilkinson, H.D.; Scott, E.K.; Hollis, E.P.; Pearce, S.L.; Frith, J.; Angus, H.W.; Cooper, A.G.; Moon, O.; Sells, F.; Crews, H.C.; Solomon, M.; Chattock, R.A.; Sumpner, W.E.; Augold, A.E.; Morcom, R.K.; Harrison, H.T.
Title Discussion on: “Street lighting by modern electric lamps” Type Journal Article
Year 1911 Publication Journal of the Institution of Electrical Engineers Abbreviated Journal
Volume 46 Issue 205 Pages 46-91
Keywords Lighting; Commentary
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2054-0612 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2740
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