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Articult ◽  
2021 ◽  
pp. 57-68
Author(s):  
Olga V. Kolotvina ◽  

The article reviewed the main cinematic techniques, themes and motives used by J. Val del Omar for the lyrical conceptualization of the image of the city in the film “Vibrations of Granada” (1935) and analyzed their semantics. It demonstrates how the documentary narrative splits into pure representation and an area of allegorical tension, supported by key metaphors as sources of expanded motives. The metaphor of the Garden of Eden represents Granada as an image of Paradise; the use of the motive of water as the main element of drama contributes to the actualization of philosophical semantics and in combination with the green filter through which the film is projected, forms the fabulous-onyric character of the narrative; the visual motive of verticality created by camera angles, editing, etc, acquires the axiological meaning of the city's spiritual aspiration upward. It is revealed that the film’s style was influenced by the optics of cinematic impressionism, the R. Flaherty’s documental aesthetics and the poetic images of F. Garcia Lorca. This artistic program permits consideration of the film as an ethnographically and existentially accentuated version of the films of the “city symphony” of the 1920s and 1930s.


2020 ◽  
Vol 61 ◽  
pp. C273-C287
Author(s):  
Peter Vincent Aquilina ◽  
David Booth ◽  
Brandon Pincombe ◽  
Gary Hanly ◽  
Kym Meaney ◽  
...  

We investigate the use of a yellow-green filter to increase the signal-to-noise ratio (snr) in imaging photoplethysmography (iPPG) and test if high frame rate (HFR) video improves the accuracy of the derived heart rate variability (HRV). This pilot study is associated with a broader program to use iPPG to detect and monitor stress levels using HRV. To improve the snr of the iPPG signal, we employ two HFR colour video cameras of which one was fitted with a yellow-green filter (corresponding to the haemoglobin absorption peak within the visible spectrum). To our knowledge, the benefit of a yellow-green filter has never been explored. The predominant influence on HRV comes from the autonomic nervous system (ANS), which connects directly to the heart and cues the human body to relax or to stress. The linkage of HRV to the ANS makes HRV a proxy for stress levels. The HRV is derived from the iPPG signal by first using a cubic spline interpolation for more precise peak detection, and then calculating the inter-beat intervals from the peak-to-peak time differences. Instead of interpolating the signal, we hypothesise that a more accurate HRV measurement can be obtained using a HFR video camera, in our case at 200 frames per second. References E. B. Blackford, J. R. Estepp, and D. J. McDuff. Remote spectral measurements of the blood volume pulse with applications for imaging photoplethysmography. In G. L. Cote, editor, Optical Diagnostics and Sensing XVIII: Toward Point-of-Care Diagnostics, volume 10501, page 105010Z. International Society for Optics and Photonics, SPIE, 2018. doi:10.1117/12.2291073. M. Brayne. Trauma and Journalism: A Guide For Journalists, Editors and Managers. DART Center for Journalism and Trauma, 2007. https://dartcenter.org/sites/default/files/DCE_JournoTraumaHandbook.pdf. L. F. C. Martinez, G. Paez, and M. Strojnik. Optimal wavelength selection for noncontact reflection photoplethysmography. In Proceedings of the 22nd Congress of the International Commission for Optics: Light for the Development of the World, volume 8011, page 801191. International Society for Optics and Photonics, SPIE, 2011. doi:10.1117/12.903190. Y. Sun, S. Hu, V. Azorin-Peris, R. Kalawsky, and S. E. Greenwald. Noncontact imaging photoplethysmography to effectively access pulse rate variability. J. Biomed. Optics, 18(6):061205, 2013. doi:10.1117/1.JBO.18.6.061205. A. M. Unakafov. Pulse rate estimation using imaging photoplethysmography: generic framework and comparison of methods on a publicly available dataset. Biomed. Phys. Eng. Exp., 4(4):045001, 2018. doi:10.1088/2057-1976/aabd09.


2020 ◽  
Author(s):  
Tom Iwanicki ◽  
Cliff Haman ◽  
Amy Liu ◽  
John S Taylor

Correlations between variation in opsin expression and variation in vision are often assumed but rarely tested. We exposed starry flounder ( Platichthys stellatus ) to either broad spectrum sunlight or green-filtered light in outdoor aquaria for seven weeks and then combined digital-PCR and camouflage experiments to test two hypotheses: i) short-wavelength sensitive opsin expression decreases in a green light environment, and ii) if observed, this change in opsin expression influences colour vision as estimated using a camouflage-based behavioural assay. Of the eight visual opsins measured, Sws1 (UV sensitive) and Sws2B (blue sensitive) expression was significantly lower in fish exposed to green light. However, opsin expression in fish transferred to an arena illuminated with white LED light for three hours after the green light treatment did not differ from broad spectrum controls. Changes in opsin expression in response to artificial light environments have been reported before, but rapid changes over three hours rather than days or weeks is unprecedented. We did not observe a significant difference in a flounder’s camouflage response based on light environment, although broad spectrum fish increased and green-filter fish decreased the pattern contrast when on the blue-green substrate, and this difference approached significance. This pattern is intriguing considering green-filter fish expressed fewer UV and blue opsins and we recommend increased statistical power for future experiments. Together, our results show that starry flounder opsin expression changes rapidly in response to changes in light environment, however, there is no apparent effect on their visually mediated camouflage.


2020 ◽  
Vol 4 (2) ◽  
pp. 194-202
Author(s):  
Andi Friadi

Cervical precancer lesion can generally be seen in the transformation zone. Colposcopy allows us to see an image of enlarge precancer lesion in the transformation zone. The colpocopist should consider some important things to determine the appearance of low-grade lesion or high-grade lesion. Two important things are the description of abnormal epithelium and the description of abnormal blood vessels. The description of the abnormal epithelial seen after administration of acetic acid 3-5%,  acetowhite looks faster and disappears slower. The “white” lesion is more concentrated like the color of shells, with clear border and surface contour. To find the abnormal blood vessels more clearly, we can use the green filter. High-grade lesion shows rough mosaic and rough punctation or both. In addition, finding the cervical blood vessels can help us to determine high-grade lesion. By understanding the description of the epithelial cervix and abnormal blood vessels , we will easily distinguish high-grade lesions from low grade lesion.  Keywords: cervical precancer, colposcopy findings


2020 ◽  
Vol 4 (2) ◽  
pp. 225-233
Author(s):  
Andi Friadi

Cervical precancer lesion can generally be seen in the transformation zone. Colposcopy allows us to see an image of enlarge precancer lesion in the transformation zone. The colpocopist should consider some important things to determine the appearance of low-grade lesion or high-grade lesion. Two important things are the description of abnormal epithelium and the description of abnormal blood vessels. The description of the abnormal epithelial seen after administration of acetic acid 3-5%,  acetowhite looks faster and disappears slower. The “white” lesion is more concentrated like the color of shells, with clear border and surface contour. To find the abnormal blood vessels more clearly, we can use the green filter. High-grade lesion shows rough mosaic and rough punctation or both. In addition, finding the cervical blood vessels can help us to determine high-grade lesion. By understanding the description of the epithelial cervix and abnormal blood vessels , we will easily distinguish high-grade lesions from low grade lesion.  Keywords: cervical precancer, colposcopy findings


2019 ◽  
Vol 7 (1) ◽  
pp. 30
Author(s):  
AshishA Ahuja ◽  
OlukoredeO Adenuga
Keyword(s):  

2016 ◽  
Vol 79 (2) ◽  
Author(s):  
. NURHAIMI-HARIS ◽  
Nurul Siti AYUNINGTIAS ◽  
Irma Herawati SUPARTO

AbstractIn plant tissue culture, the culture vessels are usuallycovered tightly with screw caps, aluminium foils, parafilm,or plastic wrap. This condition restricts the exchange ofgases in culture vessels and will affect negatively thegrowth of explants. The use of ventilated closure improvesthe air quality in culture vessels. Microboxes provided withdifferent types of filter (yellow filter with Kv value13.09 Gas Exchange (GE)/day, green filter with Kv value81.35 GE/day and without filter) on their closure wereexamined as culture vessels for growing rubber explants atmultiplication step. The purpose of this research was toobserve the plant condition in different types of microboxcorresponding to the morphology, stomata and chlorophyllcontent of the shoots. The results showed no significantdifference of shoot height on each microbox. The use ofventilated closure increased significantly new leafformation and decreased leaf fall. Normal size and color ofleaves were found on shoots grown in microbox with greenfilter. Chlorophyll analysis revealed no significantdifferences on three types of microbox, however visualobservation showed that leaves were greener on microboxwith green filter. The stomata condition of shoots onmicrobox with green filter were similar with those ofmother plants in green house, while different condition ofstomata were found on shoots grown in microbox withyellow filter or without filter. In normal environment suchas at the field and green house, most of stomata wereclosed, in microbox provided with filter on the closure,most of stomata were half open, while on microbox withoutfilter most of stomata were wide open.bstrakDalam kultur jaringan tanaman, tabung/botol kulturditutup rapat dengan penutup yang dilengkapi ulir,aluminium foil, parafilm atau plastik wrap. Kondisitersebut menghambat pertukaran udara dalam tabung kultursehingga sering memberikan pengaruh negatif terhadappertumbuhan eksplan. Penggunaan penutup berventilasidapat meningkatkan kualitas udara dalam lingkungantabung/botol kultur. Oleh karena itu microbox denganpenutup berfilter diuji sebagai wadah untuk menumbuhkaneksplan karet pada tahap multiplikasi, yaitu microboxberfilter kuning dengan nilai Kv sebesar 13,09 (GasExchange (GE)/hari dan berfilter hijau dengan nilai Kvsebesar 81,35 GE/hari, sedangkan sebagai kontrol adalahmicrobox tanpa filter (tertutup rapat). Penelitian bertujuanmengamati kondisi tunas di dalam microbox berfilter,meliputi morfologi, stomata dan kandungan klorofil. Hasilpenelitian menunjukkan bahwa tinggi tunas tidak berbedanyata pada masing-masing microbox. Jumlah daun barudan daun gugur berbeda nyata, dimana pembentukan daunbaru terbanyak terdapat pada tunas dalam microboxberfilter kuning maupun hijau. Ukuran dan warna daunterlihat normal pada tunas dalam microbox berfilter hijau.Analisis kandungan klorofil tidak menunjukkan perbedaannyata, namun pengamatan visual menunjukkan bahwa daunlebih hijau pada microbox dengan filter hijau. Kondisistomata daun dari tunas dalam microbox dengan penutupberfilter hijau menyerupai stomata tanaman induk yangterdapat di rumah kaca dan lapangan, sedangkan kondisistomata berbeda ditemukan pada tunas dalam microboxberfilter kuning atau tanpa filter. Pada lingkungan normalseperti lapangan dan rumah kaca, sebagian besar stomatamenutup, pada wadah dengan tutup berfilter stomata agakmembuka sedangkan pada microbox tanpa filter sebagianbesar stomata terbuka lebar.


2016 ◽  
Vol 79 (2) ◽  
Author(s):  
. NURHAIMI-HARIS ◽  
Nurul Siti AYUNINGTIAS ◽  
Irma Herawati SUPARTO

AbstractIn plant tissue culture, the culture vessels are usuallycovered tightly with screw caps, aluminium foils, parafilm,or plastic wrap. This condition restricts the exchange ofgases in culture vessels and will affect negatively thegrowth of explants. The use of ventilated closure improvesthe air quality in culture vessels. Microboxes provided withdifferent types of filter (yellow filter with Kv value13.09 Gas Exchange (GE)/day, green filter with Kv value81.35 GE/day and without filter) on their closure wereexamined as culture vessels for growing rubber explants atmultiplication step. The purpose of this research was toobserve the plant condition in different types of microboxcorresponding to the morphology, stomata and chlorophyllcontent of the shoots. The results showed no significantdifference of shoot height on each microbox. The use ofventilated closure increased significantly new leafformation and decreased leaf fall. Normal size and color ofleaves were found on shoots grown in microbox with greenfilter. Chlorophyll analysis revealed no significantdifferences on three types of microbox, however visualobservation showed that leaves were greener on microboxwith green filter. The stomata condition of shoots onmicrobox with green filter were similar with those ofmother plants in green house, while different condition ofstomata were found on shoots grown in microbox withyellow filter or without filter. In normal environment suchas at the field and green house, most of stomata wereclosed, in microbox provided with filter on the closure,most of stomata were half open, while on microbox withoutfilter most of stomata were wide open.bstrakDalam kultur jaringan tanaman, tabung/botol kulturditutup rapat dengan penutup yang dilengkapi ulir,aluminium foil, parafilm atau plastik wrap. Kondisitersebut menghambat pertukaran udara dalam tabung kultursehingga sering memberikan pengaruh negatif terhadappertumbuhan eksplan. Penggunaan penutup berventilasidapat meningkatkan kualitas udara dalam lingkungantabung/botol kultur. Oleh karena itu microbox denganpenutup berfilter diuji sebagai wadah untuk menumbuhkaneksplan karet pada tahap multiplikasi, yaitu microboxberfilter kuning dengan nilai Kv sebesar 13,09 (GasExchange (GE)/hari dan berfilter hijau dengan nilai Kvsebesar 81,35 GE/hari, sedangkan sebagai kontrol adalahmicrobox tanpa filter (tertutup rapat). Penelitian bertujuanmengamati kondisi tunas di dalam microbox berfilter,meliputi morfologi, stomata dan kandungan klorofil. Hasilpenelitian menunjukkan bahwa tinggi tunas tidak berbedanyata pada masing-masing microbox. Jumlah daun barudan daun gugur berbeda nyata, dimana pembentukan daunbaru terbanyak terdapat pada tunas dalam microboxberfilter kuning maupun hijau. Ukuran dan warna daunterlihat normal pada tunas dalam microbox berfilter hijau.Analisis kandungan klorofil tidak menunjukkan perbedaannyata, namun pengamatan visual menunjukkan bahwa daunlebih hijau pada microbox dengan filter hijau. Kondisistomata daun dari tunas dalam microbox dengan penutupberfilter hijau menyerupai stomata tanaman induk yangterdapat di rumah kaca dan lapangan, sedangkan kondisistomata berbeda ditemukan pada tunas dalam microboxberfilter kuning atau tanpa filter. Pada lingkungan normalseperti lapangan dan rumah kaca, sebagian besar stomatamenutup, pada wadah dengan tutup berfilter stomata agakmembuka sedangkan pada microbox tanpa filter sebagianbesar stomata terbuka lebar.


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