Relevant bibliographies by topics / Ultra-low intensity light stimul

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Academic literature on the topic 'Ultra-low intensity light stimul'

Author: Grafiati
Published: 28 May 2022
Last updated: 30 July 2025

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Journal articles on the topic "Ultra-low intensity light stimul"

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Yu, Yue, Zhanming Li, Zhengtao Zhong, et al. "Effect of Monochromatic Green LED Light Stimuli During Incubation on Embryo Growth, Hatching Performance, and Hormone Levels." Transactions of the ASABE 61, no. 2 (2018): 661–69. http://dx.doi.org/10.13031/trans.12485.

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Abstract. Previous research indicated improvement of incubation by light stimuli. However, the light source arrangement, usually with irradiation from top to bottom, was inconvenient and high in cost. Among the different light colors, the effects of green LED light stimuli during embryo development were inconclusive. In this study, two LED lamps were installed on both sides of egg trays, and the irradiation was directed from the edges to the middle. The effect of green LED light with various light intensities was investigated. A total of 1408 broiler eggs were randomly allocated to high light
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Kast, Richard E., Anton P. Kast, Jürgen Arnhold, et al. "Noninvasive Ultra Low Intensity Light Photodynamic Treatment of Glioblastoma with Drug Augmentation: LoGlo PDT Regimen." Brain Sciences 14, no. 12 (2024): 1164. http://dx.doi.org/10.3390/brainsci14121164.

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This paper presents the basis for LoGlo PDT, a new treatment for glioblastoma. Glioblastoma is currently treated with maximal safe resection, temozolomide, and ionizing irradiation. Mortality in 2024 remains over 80% within several years from diagnosis. Oral 5-aminolevulinic acid (5-ALA) is an FDA/EMA approved drug that is selectively taken up by malignant cells, including by glioblastoma. In photodynamic treatment of glioblastoma, intense intraoperative light causes glioblastoma tissue that has taken up 5-ALA to generate cytotoxic reactive oxygen species. The requirement for intense light flu
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Zhan, Ziheng, Lei Chen, Huigao Duan, Yiqin Chen, Min He, and Zhaolong Wang. "3D printed ultra-fast photothermal responsive shape memory hydrogel for microrobots." International Journal of Extreme Manufacturing 4, no. 1 (2021): 015302. http://dx.doi.org/10.1088/2631-7990/ac376b.

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Abstract Hydrogels with stimuli-responsive capabilities are gaining more and more attention nowadays with prospective applications in biomedical engineering, bioelectronics, microrobot, etc. We develop a photothermal responsive hydrogel based on N-isopropylacrylamide that achieved a fast and reversible deformation manipulated only by near-infrared (NIR) light. The hydrogel was fabricated by the projection micro stereolithography based 3D printing technique, which can rapidly prototype complex 3D structures. Furthermore, with the variation of the grayscale while manufacturing the hydrogel, the
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Mellor, H. E., and J. G. C. Hamilton. "Navigation of Lutzomyia longipalpis (Diptera: Psychodidae) under dusk or starlight conditions." Bulletin of Entomological Research 93, no. 4 (2003): 315–22. http://dx.doi.org/10.1079/ber2003248.

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AbstractThe responses of male and female Lutzomyia longipalpis (Lutz & Neiva) to different wavelengths of light was tested by presenting the sandflies with two light sources simultaneously, a series of test wavelengths between 350–670 nm and a 400 nm control. To test whether L. longipalpis could discriminate between the test and control, three sets of experiments were carried out in which the test wavelengths were presented at higher, equivalent or lower intensity than the control. In all three experiments, ultra-violet (350 nm) and blue-green-yellow (490–546 nm) light was more attractive
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Mei, Jie, Jincan Che, Yunzhu Shi, Yudian Fang, Rongling Wu, and Xuli Zhu. "Mapping the Influence of Light Intensity on the Transgenerational Genetic Architecture of Arabidopsis thaliana." Current Issues in Molecular Biology 46, no. 8 (2024): 8148–69. http://dx.doi.org/10.3390/cimb46080482.

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Light is a crucial environmental factor that influences the phenotypic development of plants. Despite extensive studies on the physiological, biochemical, and molecular mechanisms of the impact of light on phenotypes, genetic investigations regarding light-induced transgenerational plasticity in Arabidopsis thaliana remain incomplete. In this study, we used thaliana as the material, then gathered phenotypic data regarding leaf number and plant height under high- and low-light conditions from two generations. In addition to the developed genotype data, a functional mapping model was used to loc
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Wang, Mengjie, Jin Shen, John C. Thomas, et al. "Particle Size Measurement Using Dynamic Light Scattering at Ultra-Low Concentration Accounting for Particle Number Fluctuations." Materials 14, no. 19 (2021): 5683. http://dx.doi.org/10.3390/ma14195683.

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Dynamic light scattering (DLS) is a popular method of particle size measurement, but at ultra-low particle concentrations, the occurrence of number concentration fluctuations limits the use of the technique. Number fluctuations add a non-Gaussian term to the scattered light intensity autocorrelation function (ACF). This leads to an inaccurate particle size distribution (PSD) being recovered if the normal DLS analysis model is used. We propose two methods for inverting the DLS data and recovering the PSDs when number fluctuations are apparent. One is to directly establish the relationship betwe
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Fusco, B. M., M. Alessandri, V. Campagnolo, and M. Fanciullacci. "Transcutaneous electrical stimulation applied to the infratrochlear nerve induces a homatropine-resistant miosis in humans." Clinical Science 78, no. 5 (1990): 457–62. http://dx.doi.org/10.1042/cs0780457.

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1. Both high- and low-intensity transcutaneous electrical stimuli were applied to the emergence of the infratrochlear nerve in 18 healthy subjects. The effect on the size of the homolateral pupil was investigated. The width of the pupil was also measured when high-intensity transcutaneous electrical stimulation was applied to the contralateral side. 2. The high-intensity pulse resulted in constriction of the pupil when the stimulation was homolateral. The miosis was slow in onset (120 s latency) and long-lasting (80 s). No pupillary changes were detected after either ipsilateral low-intensity
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Lozano-Soto, Elena, Vanesa Soto-León, Simona Sabbarese, et al. "Transcranial static magnetic field stimulation (tSMS) of the visual cortex decreases experimental photophobia." Cephalalgia 38, no. 8 (2017): 1493–97. http://dx.doi.org/10.1177/0333102417736899.

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Background Transcranial static magnetic field stimulation (tSMS) reduces cortical excitability in humans. Methods The objective of this study was to determine whether tSMS over the occipital cortex is effective in reducing experimental photophobia. In a sham-controlled double-blind crossover study, tSMS (or sham) was applied for 10 minutes with a cylindrical magnet on the occiput of 20 healthy subjects. We assessed subjective discomfort induced by low-intensity and high-intensity visual stimuli presented in a dark room before, during and after tSMS (or sham). Results Compared to sham, tSMS sig
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Wang, Peng-Fei, Xi Lin, Lei Liu, et al. "A Semi-Floating Gate Transistor for Low-Voltage Ultrafast Memory and Sensing Operation." Science 341, no. 6146 (2013): 640–43. http://dx.doi.org/10.1126/science.1240961.

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As the semiconductor devices of integrated circuits approach the physical limitations of scaling, alternative transistor and memory designs are needed to achieve improvements in speed, density, and power consumption. We report on a transistor that uses an embedded tunneling field-effect transistor for charging and discharging the semi-floating gate. This transistor operates at low voltages (≤2.0 volts), with a large threshold voltage window of 3.1 volts, and can achieve ultra–high-speed writing operations (on time scales of ~1 nanosecond). A linear dependence of drain current on light intensit
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Colace, Lorenzo, Gaetano Assanto, and Andrea De Iacovo. "Light-Emitting Diodes for Energy Harvesting." Electronics 13, no. 8 (2024): 1587. http://dx.doi.org/10.3390/electronics13081587.

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Energy harvesting is gaining substantial relevance in the realm of ultra-low-power electronics and Internet-of-Things devices with limited access to classic power sources. Several harvesting approaches are available, depending on the energy source; among them, photovoltaic devices benefit from the highest energy density. However, the inclusion of a dedicated photovoltaic cell in a low-power system may result in increased costs and complexity, thus hampering economic sustainability. Conversely, electronic apparatuses often make use of light-emitting-diodes (LEDs), which could be effectively emp
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Dissertations / Theses on the topic "Ultra-low intensity light stimul"

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Ткачук, Роман Андрійович, Роман Андреевич Ткачук та R. A. Tkachuk. "Розвиток теорії і методів побудови засобів високоінформативної електроретинографії". Thesis, Тернопільський національний технічний університет ім. Івана Пулюя, 2012. http://elartu.tntu.edu.ua/handle/123456789/2090.

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Робота виконана в Тернопільському національному технічному університеті імені Івана Пулюя Міністерства освіти і науки, молоді та спорту України. Захист відбувся “17”02. 2012 р. о “9-30” годині на засіданні спеціалізованої вченої ради Д 05.052.02 у Вінницькому національному технічному університеті (21021, м. Вінниця, Хмельницьке шосе, 95, 210 ГНК). З дисертацією можна ознайомитися у бібліотеці Вінницького національного технічного університету (21021, м. Вінниця, Хмельницьке шосе, 95).<br>Дисертацію присвячено вирішенню важливої науково-прикладної проблеми − розвитку теорії і методів побудови
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Books on the topic "Ultra-low intensity light stimul"

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Panagariya, Arvind. New India. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780197531556.001.0001.

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Its GDP having touched $2.6 trillion, India is poised to become the world’s third-largest economy in less than a decade. In doing so, it will have moved one step closer to reclaiming its pre-1820s glory, when it accounted for one-sixth of global output and ranked second in economic size. This rapid movement in the absolute size of the economy will be insufficient, however, to bring prosperity to India’s vast population. Today, 44 percent of the country’s workforce remains in agriculture and another 42 percent in tiny enterprises with fewer than twenty workers. Labor productivity of both sets o
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Book chapters on the topic "Ultra-low intensity light stimul"

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"Absorption spectra measurements of riboflavin with a novel dual-line spectrophotometer." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.23.1.

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We present the first data collected during an experimental campaign conducted at DFA "Ettore Majorana" in Catania, with the aim of testing the performance of a recently developed dual-line spectrophotometer for absorbance measurements, based on a innovative sample holder design replacing standard 1 cm quartz cuvettes. The prototype consists of a 2 cm - radius integrating spherical cavity realized in PTFE, whose walls behave as a lambertian reflector in the UV-Vis spectral region. The high reflectivity of the cavity guarantees a longer photon path length inside the samples (up to a few meters),
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Olaleru, Akin, Eric Maluta, Joseph Kirui, and Olasoji Adekoya. "Hybrid Perovskite Thin Film." In Thin Films Photovoltaics. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.100457.

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Hybrid perovskite thin film offers diverse advantages like low cost deposition techniques, less material consumption and superior optoelectronic properties. These merits including high voltage and high efficiency performance in a wide range of high light intensity are sufficient to distinguish perovskite thin films/devices from their contenders as a thin film technology with greater potential for industrial applications. Perovskite thin film technology demonstrates potency in a variety of applications in optoelectronic devices especially photovoltaic applications. The National Renewable Energy
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Conference papers on the topic "Ultra-low intensity light stimul"

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Xu, L. M., T. P. Huang, M. Alotaibi, and A. Boqmi. "Novel Thermal Stimuli-Responsive Surfactants to Reduce Operation Costs for Chemical Flooding." In SPE Improved Oil Recovery Conference. SPE, 2024. http://dx.doi.org/10.2118/218270-ms.

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Abstract Demulsification of produced fluids in chemical flooding is a costive treatment due to the stable emulsion in the presence of injected surfactants. The objective of this study is to develop unique thermal stimuli-responsive surfactant, which reduces interfacial tension (IFT) at high temperature in reservoir for improving oil production and loses effectiveness when temperature decreases to easily break the produced emulsion at low temperature in surface to reduce operation costs. The surfactant formulation was developed by mixing two different surfactants and one has thermal stimuli-res
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Rahman, Md Mahfuzur, and Amirjan Bin Nawabjan. "28.81 % Efficient, Low Light Intensity and High Temperature Sustainable Ultra-Thin IBC Solar Cell." In 2022 International Virtual Conference on Power Engineering Computing and Control: Developments in Electric Vehicles and Energy Sector for Sustainable Future (PECCON). IEEE, 2022. http://dx.doi.org/10.1109/peccon55017.2022.9851032.

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Fujisawa, Shoichiro, Masaki Okegawa, Kenji Sakami, et al. "On the stimulation and visibility by blinking light emitting block for low vision." In 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1001636.

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Approximately 80% of people with visual impairment have residual visual acuity. As such, the authors have developed a light-emitting block that is placed at the entrance of a pedestrian crossing to support those with visual impairment at night. A blinking light has generally been used for selectively distinguishing the target light source from the surrounding light source. However, this type of blinking (i.e., simple blinking) can be stimulating, making it suitable for night-time road construction sites but not for normal road environments. Therefore, the authors have focused on phase-in-phase
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Tian, Lin, and Goodarz Ahmadi. "Effect of Brownian Dynamics on Ellipsoidal Fibers in Human Tracheobronchial Airways." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-32335.

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In vitro and vivo studies and observation of patients’ tissues have linked the occurrence of respiratory cancer to human exposure to asbestos fibers. While substantial evidences identified the ultra-fine fibers with diameter &lt; 0.25 μm posing the highest carcinogenicity, the details of such correlation is still not fully understood. Particles in the submicron range are known to exhibit random Brownian motion and the intensity are well correlated to inversely to the particle dimension. The process of fiber Brownian motion and the extent that it affects the fiber transport and deposition in hu
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Ribeiro, Martha S., Anderson Z. Freitas, Daniela F. T. Silva, et al. "Comparison of linear polarization degree in health and wounded rat skin." In European Conference on Biomedical Optics. Optica Publishing Group, 2001. http://dx.doi.org/10.1364/ecbo.2001.4433_45.

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Low-intensity laser therapy (LILT) with adequate wavelength, intensity, and dose can accelerate tissue repair. However, there is still disperse information about light characteristics. Several works indicate that laser polarization plays an important role on the wound healing process. This study was conducted to verify the degree of linear polarization in normal and pathological rat skin samples. Artificial burns about 6 mm in diameter were created with liquid N2 on the back of the animals. The degree of polarization was measured in normal and pathological skin samples. It was verified that li
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Hamer, Russell D., and Christopher W. Tyler. "Red- and green-cone pathways have different temporal properties: implications for photometry." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.mkk2.

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Detection of temporally modulated light is linear at high temporal frequencies; near critical flicker frequency (CFF), threshold is determined by the absolute amplitude of the modulation, independent of the luminance or the Weber ratio associated with the stimulus. We measured CFF at 555 nm and 660 nm over a 5-log unit range of intensities. The resulting CFF/logintensity functions were linear, obeying the Ferry-Porter law over the entire range. However, the slope for 555-nm light was significantly steeper, by as much as 17% in the foveola and 25% at 35° eccentricity. If the R- and G-cone pathw
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Koka, Aneesh, and Henry A. Sodano. "Ultra-Long Barium Titanate Nanowire Arrays for Low Frequency Energy Harvesting Applications." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7426.

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Piezoelectric nanowires (NWs) have recently attracted immense interest due to their excellent electro-mechanical coupling behavior that can efficiently enable conversion of low-intensity mechanical vibrations for powering or augmenting batteries of biomedical devices and portable consumer electronics. Specifically, nano-electromechanical systems (NEMS) composed of piezoelectric NWs offer an exciting potential for energy harvesting applications due to their enhanced flexibility, light weight, and compact size. Compared to the bulk form, high aspect ratio NWs can exhibit higher deformation to pr
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Fujisawa, Shoichiro, Shoya Nishimori, Yoshifuru Atsuta, et al. "Stimulation and visibility of flashing lights with different illuminance." In 14th International Conference on Applied Human Factors and Ergonomics (AHFE 2023). AHFE International, 2023. http://dx.doi.org/10.54941/ahfe1003654.

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In this study, we performed a demonstration experiment to determine a highly visible light emission pattern while feeling that the stimulus is suppressed using sensory evaluation. We performed sensory evaluation of stimulus intensity and visibility of simple blinking that repeats on and off and fade-in/fade-out blinking that gradually brightens and fades to investigate the trade-off relationship between stimulus adaptation and arousal. In the experiment, we compared the light-emitting blocks that are constantly lit, simple blinking, and fade-in/fade-out blinking and clarified the relationship
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Vourc’h, Thomas, Julien Léopoldès, and Hassan Peerhossaini. "Phototactic Behaviour of Active Fluids: Effects of Light Perturbation on Diffusion Coefficient of Bacterial Suspensions." In ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ajkfluids2019-4904.

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Abstract Active fluids refer to the fluids that contain self-propelled particles such as bacteria or micro-algae, whose properties differ fundamentally from the passive fluids. Such particles often exhibit an intermittent motion; with high-motility “run” periods separated by low-motility “tumble” periods. The average motion can be modified with external stresses, such as nutrient or light gradient, leading to a directed movement called chemotaxis and phototaxis, respectively. Using cyanobacterium Synechocystis sp.PCC 6803, a model micro-organism to study photosynthesis, we track the bacterial
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Patil, Vishal A., and James A. Liburdy. "Refractive Index Matching With Distortion Measurements in a Bed of Irregularly Packed Spheres." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30571.

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Experimental flow visualization in porous media is often conducted using optical techniques such as PIV and PTV for velocity field estimation and LIF for concentration field measurements. The porous bed is made optically accessible to laser light and imaging by matching refractive indices of the liquid phase to that of the solid matrix, including the channel walls. The methods most commonly employed to match the refractive indices have been to maximize the transmitted intensity through the bed or to rely on refractometers for measurement of the liquid and solid phases. Refractometers with sens
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