scholarly journals Effect of visible light sticks for collecting of adult caddisflies (Trichoptera): A preliminary field study

Zoosymposia ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 153-159
Author(s):  
GORO KIMURA ◽  
RYOICHI B. KURANISHI
Keyword(s):  
Dominant Species ◽  
Uv Light ◽  
Green Light ◽  
Visible Spectrum ◽  
Management Tool ◽  
Light Sources ◽  
Light Traps ◽  
Yellow Light ◽  
Uv Spectrum ◽  
Local Residents

Local residents along the Uji River, Kyoto, Japan, may be exposed to seasonal invasions of adult caddisflies. Ultraviolet (UV)-blocking materials are believed to be an effective pest management tool because adult caddisflies are often attracted to light sources that emit large amounts of UV light. To clarify the effect of the visible spectrum, we collected adult caddisflies using blue, green, and yellow light sticks that did not emit UV light. Traps were operated from 18:30 (sunset: 18:22) on September 2, 2016 to 06:00 (sunrise, 05:31) on September 3, 2016. We collected 382 adults representing eight species of caddisflies. Green light sticks attracted the most numerous individuals (189 adults, seven species), followed by blue (134 adults, seven species), then yellow (59 adults, five species). Paduniella tanidai Nishimoto was the dominant species (331 adults). These results suggest that adult caddisflies are attracted not only to the UV spectrum but also the visible spectrum.

Behavioral response of adult caddisflies (Trichoptera) to blue and green light-emitting diode lamps

Zoosymposia ◽  
2019 ◽  
Vol 14 (1) ◽  
pp. 59-62
Author(s):  
GORO KIMURA ◽  
GORO TAJIKA ◽  
TOSHIHIRO KUSAMA ◽  
TSUTOMU TANIKAWA
Keyword(s):  
Uv Light ◽  
Diversity Index ◽  
Light Emitting Diode ◽  
Broad Band ◽  
Green Light ◽  
Visible Spectrum ◽  
Ultraviolet Spectrum ◽  
White Led ◽  
Light Emitting ◽  
Wiener Diversity Index

To clarify the effect of the visible spectrum, we collected Trichoptera adults using blue, green, and white light-emitting diode (LED) lamps and black light (BL) lamps. Except for white LED lamps, all lamps emitted broad-band wavelengths in the ultraviolet spectrum. A total of 212 adult Trichoptera were trapped. The most individuals were attracted by BL (96), followed blue (74), green (32), and white (10). Hydroptilidae spp. was the most abundant taxa among the lamps (183 individuals, 86.3%), followed by Cheumatopsyche brevilineata (23 individuals, 10.8%). Only Hydroptilidae spp. was common to all lamps. The Shannon–Wiener diversity index (H’) was highest at 0.96 for BL, followed by green (0.53), and blue (0.28). Trichoptera were attracted to both UV light and visible light. These results suggest that BL is the most useful for faunistic investigations of Trichoptera.

An End-Type Fiber-Optic UV Sensor Covered with Mixture of Two UV Sensitive Materials

2013 ◽  
Vol 543 ◽  
pp. 265-268
Author(s):  
Ana V. Joža ◽  
Dragan Z. Stupar ◽  
Jovan S. Bajić ◽  
Bojan M. Dakić ◽  
Zoran Mijatović ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Uv Light ◽  
Visible Spectrum ◽  
Light Sources ◽  
Solar Simulator ◽  
Uv Sensor ◽  
Sensor Configuration ◽  
Uv Lamp ◽  
Hot Melt ◽  
Type Fiber

An end-type fiber-optic UV sensor based on the principle of fluorescence is proposed and demonstrated. The sensor is made of large-core plastic optical fiber with one end covered with mixture of hot melt adhesive and small amount of chlorophyll. As sources of ultraviolet radiation solar simulator and UV lamp are used. Spectra on the sensor output are measured with spectrometer and compared for different UV light sources. Both hot melt adhesive and chlorophyll reacted to UV radiation. The peaks of fluorescent emission are obtained in visible spectrum in range of blue wavelengths (for hot melt adhesive) and in range of red wavelengths (for chlorophyll), which makes this sensor configuration a good solution for signal multiplexing.

scholarly journals COMPARISON OF THE CDC LIGHT TRAP AND THE DYNATRAP® DT2000 FOR COLLECTION OF MOSQUITOES IN SEMI-FIELD AND FIELD SETTINGS

2021 ◽  
Vol 67 (1) ◽  
pp. 69-72
Author(s):  
Nicholas Acevedo
Keyword(s):  
Mosquito Control ◽  
Uv Light ◽  
Mosquito Species ◽  
Functional Limitations ◽  
Light Trap ◽  
Light Sources ◽  
Light Traps ◽  
Original Design ◽  
Cdc Light Trap ◽  
Control Programs

The CDC light trap has been the standard used by mosquito control programs to conduct mosquito and arbovirus surveillance. For the last two decades, this trap has been used with little to no modifications to its original design. Recently, new traps that utilize different light sources, modified designs, and attractants have been developed and evaluated against the CDC light trap. A semi-field and field comparison of the Dynatrap® (Model DT2000) against the CDC light trap was conducted at Anastasia Mosquito Control District. The DT2000 varies from the CDC light trap with a UV light, trapdoor/fan mechanism, and Atrakta lure which is a combination of lactic acid, ammonia, and hexanoic acid. Overall, the DT2000 collected 56% (327/600) of the Ae. aegypti released in the semifield cage, compared to 18.5% (111/600) collected by the CDC light traps. These findings suggest that the DT2000 outperformed the CDC light trap in collecting Ae. aegypti. In the field, the DT2000 collected nine target mosquito species while the CDC light trap collected four target species. The DT2000 averaged 109 ± 97.46 mosquitoes and the CDC light trap averaged 8 ± 4.64 mosquitoes. The DT2000 presented functional limitations in the field as an electrical outlet was required. Study findings suggest that where an electrical outlet is available, the DT2000 may be an alternative to the CDC light trap for mosquito surveillance.

scholarly journals The Contribution of Different Spectral Sections to Increase Fresh Weight of Boston Lettuce

HortScience ◽  
2015 ◽  
Vol 50 (7) ◽  
pp. 1006-1010 ◽  
Author(s):  
Shih-Wei Kong ◽  
Hsin-Ying Chung ◽  
Ming-Yi Chang ◽  
Wei Fang
Keyword(s):  
Plant Growth ◽  
White Light ◽  
Light Emitting Diode ◽  
Green Light ◽  
Light Sources ◽  
Fluorescent Lamp ◽  
Fresh Weight ◽  
Yellow Light ◽  
Light Emitting ◽  
Active Radiation

Six types of light sources [0G, 20G, 40G, cool-white light-emitting diode (LED CW), cool-white fluorescent lamp (FLCW), and plant light fluorescent lamp (TLRA)] were used as the sole light sources to cultivate boston lettuce (Lactuca sativa L. cv. Ostinata). The photosynthetically active radiation (PAR) range was separated into five sections and the contributions of each spectral section on fresh weight (FW) were quantified. The results indicate that the conventional method of separating PAR into red, green, and blue at 100 nm apart was not accurate enough to clarify the contribution of different spectral sections to FW of boston lettuce. Green light (525–575 nm) at less than 30% of PAR is even more important than red (625–700 nm) and blue (400–475 nm) to plant growth. Yellow light (575–625 nm) has very little effect on plant growth.

Immobilization of ZnO Suspension on Glass Substrate to Remove Filtration During the Removal of Remazol Red R from Aqueous Solution

2016 ◽  
Vol 12 (6) ◽  
pp. 4127-4133
Author(s):  
Nazmul Kayes ◽  
Jalil Miah ◽  
Md. Obaidullah ◽  
Akter Hossain ◽  
Mufazzal Hossain
Keyword(s):  
Aqueous Solution ◽  
Glass Substrate ◽  
Uv Light ◽  
Aqueous Suspension ◽  
Light Irradiation ◽  
Zno Films ◽  
Light Sources ◽  
Zno Film ◽  
Semiconductor Oxides ◽  
Remazol Red

Photodegradation of textile dyes in the presence of an aqueous suspension of semiconductor oxides has been of growing interest. Although this method of destruction of dyes is efficient, the main obstacle of applying this technique in the industry is the time and cost involving separation of oxides from an aqueous suspension. In this research, an attempted was made to develop ZnO films on a glass substrate by simple immobilization method for the adsorption and photodegradation of a typical dye, Remazol Red R (RRR) from aqueous solution. Adsorption and photodegradation of  RRR were performed in the presence of glass supported ZnO film. Photodegradation of the dye was carried out by varying different parameters such as the catalyst dosage, initial concentrations of RRR, and light sources. The percentage of adsorption as well as photodegradation increased with the amount of ZnO, reaches a maximum and then decreased. Maximum degradation has been found under solar light irradiation as compared to UV-light irradiation. Removal efficiency was also found to be influenced by the pre-sonication of ZnO suspension.

New Results on Electroluminescence from Porous Silicon

1992 ◽  
Vol 283 ◽  
Author(s):  
Peter Steiner ◽  
Frank Kozlowski ◽  
Hermann Sandmaier ◽  
Walter Lang
Keyword(s):  
Porous Silicon ◽  
Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Uv Light ◽  
Green Light ◽  
Light Emitting ◽  
Porous Region ◽  
First Results

ABSTRACTFirst results on light emitting diodes in porous silicon were reported in 1991. They showed a quantum efficiency of 10-7 to 10-5 and an orange spectrum. Over the last year some progress was achieved:- By applying UV-light during the etching blue and green light emitting diodes in porous silicon are fabricated.- When a p/n junction is realized within the porous region, a quantum efficiency of 10-4 is obtained.

Centers for Disease Control-type light traps equipped with high-intensity light-emitting diodes as light sources for monitoring Anopheles mosquitoes

Acta Tropica ◽  
2018 ◽  
Vol 183 ◽  
pp. 61-63 ◽  
Author(s):  
Benedita Maria Costa-Neta ◽  
Abdias Ribeiro Lima-Neto ◽  
Apoliana Araújo da Silva ◽  
Jefferson Mesquita Brito ◽  
João Vitor Castro Aguiar ◽  
...  
Keyword(s):  
Disease Control ◽  
High Intensity ◽  
Light Emitting Diodes ◽  
Light Sources ◽  
Light Traps ◽  
Light Emitting ◽  
Anopheles Mosquitoes ◽  
Centers For Disease Control ◽  
High Intensity Light

scholarly journals Response of Polycrystalline Solar Cell Outputs to Visible Spectrum and other Light Sources-a Case Study

2018 ◽  
Vol 8 (6) ◽  
pp. 4096
Author(s):  
Ayman Y. Al-Rawashdeh ◽  
Omar Albarbarawi ◽  
Ghazi Qaryouti
Keyword(s):  
Solar Cells ◽  
Visible Spectrum ◽  
Artificial Light ◽  
Light Sources ◽  
Variable Response ◽  
Artificial Illumination ◽  
Different Color ◽  
Color Filters ◽  
Sunlight Radiation

<p>In this case study, two polycrystalline solar modules were installed outdoors (irradiated by sunlight) and indoors (irradiated by artificial lights). The solar cells in both cases were installed using different color filters that allowed the passage of certain light frequencies. The amount of energy produced by each module were measured and compared to a reference module with no filter. The results indicated the variable response of polycrystalline solar cells to natural and artificial light sources, being more responsive in both cases to red band color as could be deduced from their % current outputs (72.5% sunlight radiation; 84.38% artificial light sources). Other colors, including yellow, green, orange and violet afforded acceptable outputs. The results indicated that electrical outputs of indoor solar cells decreased when colored filters were used, but red filter in general afforded the maximum outputs, for both the artificially radiated indoor and naturally radiated outdoor solar cells. The case study suggests the possible complementary advantage of using indoor mounted solar cells for the production of electricity during artificial illumination period of the day.</p>

scholarly journals Beeporter: a high-throughput tool for non-invasive analysis of honey bee virus infection

2021 ◽  
Author(s):  
Jay D. Evans ◽  
Olubukola Banmeke ◽  
Evan C. Palmer-Young ◽  
Yanping Chen ◽  
Eugene V. Ryabov
Keyword(s):  
Virus Infection ◽  
Honey Bee ◽  
High Throughput ◽  
Honey Bees ◽  
High Throughput Screening ◽  
Fluorescent Protein ◽  
Imaging System ◽  
Uv Light ◽  
Light Sources ◽  
Deformed Wing Virus

ABSTRACTHoney bees face numerous pests and pathogens but arguably none are as devastating as Deformed wing virus (DWV). Development of antiviral therapeutics and virus-resistant honey bee lines to control DWV in honey bees is slowed by the lack of a cost-effective high-throughput screening of DWV infection. Currently, analysis of virus infection and screening for antiviral treatments in bees and their colonies is tedious, requiring a well-equipped molecular biology laboratory and the use of hazardous chemicals. Here we utilize a cDNA clone of DWV tagged with green fluorescent protein (GFP) to develop the Beeporter assay, a method for detection and quantification of DWV infection in live honey bees. The assay involves infection of honey bee pupae by injecting a standardized DWV-GFP inoculum, followed by incubation for up to 44 hours. GFP fluorescence is recorded at intervals via commonly available long-wave UV light sources and a smartphone camera or a standard ultraviolet transilluminator gel imaging system. Nonlethal DWV monitoring allows high-throughput screening of antiviral candidates and a direct breeding tool for identifying honey bee parents with increased antivirus resistance. For even more rapid drug screening, we also describe a method for screening bees using 96-well trays and a spectrophotometer.

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