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Articles de revues sur le sujet « Binocular observations »

Auteur : Grafiati

Publié le 10 mars 2023

Mis à jour le 31 juillet 2025

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1

Zhang, Bin, Kazuki Matsuura, Takafumi Mori, et al. "Binocular Deficits Associated With Early Alternating Monocular Defocus. II. Neurophysiological Observations." Journal of Neurophysiology 90, no. 5 (2003): 3012–23. http://dx.doi.org/10.1152/jn.00975.2002.

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Experiencing binocularly conflicting signals early in life dramatically alters the binocular responses of cortical neurons. Because visual cortex is highly plastic during a critical period of development, cortical deficits resulting from early abnormal visual experience often mirror the nature of interocular decorrelation of neural signals from the two eyes. In the preceding paper, we demonstrated that monkeys that experienced early alternating monocular defocus (–1.5, –3.0, or –6.0 D) show deficits in stereopsis that generally reflected the magnitude of imposed monocular defocus. Because thes

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Wensveen, Janice M., Ronald S. Harwerth, and Earl L. Smith. "Binocular Deficits Associated With Early Alternating Monocular Defocus. I. Behavioral Observations." Journal of Neurophysiology 90, no. 5 (2003): 3001–11. http://dx.doi.org/10.1152/jn.00976.2002.

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To study the binocular vision deficits associated with anisometropia, monkeys were reared with alternating monocular defocus, which allowed monocular mechanisms to develop normally while binocular mechanisms were selectively compromised. A defocusing contact lens of –1.5 D, –3 D, or –6 D was worn on alternate eyes on successive days ( n = 3 per lens power) from 3 wk to 9 mo of age. The control subjects were two normally reared monkeys and two human observers. Functional binocular vision was assessed through behavioral measurements of stereoscopic depth discrimination thresholds as a function o

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Testa, V., R. P. Mignani, N. Rea, et al. "Large Binocular Telescope observations of PSR J2043+2740*." Monthly Notices of the Royal Astronomical Society 473, no. 2 (2017): 2000–2003. http://dx.doi.org/10.1093/mnras/stx2512.

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Read, Jenny C. A., and Bruce G. Cumming. "Testing Quantitative Models of Binocular Disparity Selectivity in Primary Visual Cortex." Journal of Neurophysiology 90, no. 5 (2003): 2795–817. http://dx.doi.org/10.1152/jn.01110.2002.

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Disparity-selective neurons in striate cortex (V1) probably implement the initial processing that supports binocular vision. Recently, much progress has been made in understanding the computations that these neurons perform on retinal inputs. The binocular energy model has been highly successful in providing a simple theory of these computations. A key feature of the energy model is that it is linear until after inputs from the two eyes are combined. Recently, however, a modified version of the energy model, incorporating threshold nonlinearities before binocular combination, has been proposed

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de Kleer, Katherine, Michael Skrutskie, Jarron Leisenring, et al. "Resolving Io’s Volcanoes from a Mutual Event Observation at the Large Binocular Telescope." Planetary Science Journal 2, no. 6 (2021): 227. http://dx.doi.org/10.3847/psj/ac28fe.

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Abstract Unraveling the geological processes ongoing at Io’s numerous sites of active volcanism requires high spatial resolution to, for example, measure the areal coverage of lava flows or identify the presence of multiple emitting regions within a single volcanic center. In de Kleer et al. (2017) we described observations with the Large Binocular Telescope during an occultation of Io by Europa at ∼6:17 UT on 2015 March 8 and presented a map of the temperature distribution within Loki Patera derived from these data. Here we present emission maps of three other volcanic centers derived from th

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Isik, Hakan. "Students’ perceptual practices with real and virtual images." Physics Education 58, no. 6 (2023): 065003. http://dx.doi.org/10.1088/1361-6552/acea52.

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Abstract This study examined how university students learn real and virtual images using vision-based perception cues such as binocular parallax, monocular parallax, binocular fuzziness, monocular fuzziness, and convergence. Two activities on the cues were conducted with university students. In the pre-activity, they learned about the perceptual cues and practiced each cue without using a lens or mirror. Then, four setups with convex lenses and concave mirrors were designed, enabling the study of the clues, and in the main activity, the students practiced each cue on the setups. Their experien

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Ono, Hiroshi, Nicholas J. Wade, and Linda Lillakas. "Binocular Vision: Defining the Historical Directions." Perception 38, no. 4 (2009): 492–507. http://dx.doi.org/10.1068/p6130.

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Ever since Kepler described the image-forming properties of the eye (400 years ago) there has been a widespread belief, which remains to this day, that an object seen with one eye is always seen where it is. Predictions made by Ptolemy in the first century, Alhazen in the eleventh, and Wells in the eighteenth, and supported by Towne, Hering, and LeConte in the nineteenth century, however, are contrary to this claimed veridicality. We discuss how among eighteenth-and nineteenth-century British researchers, particularly Porterfield, Brewster, and Wheatstone, the erroneous idea continued and also

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Xie, Wanyi, Yiren Wang, Yingwei Xia, Zhenyu Gao, and Dong Liu. "Angular Calibration of Visible and Infrared Binocular All-Sky-View Cameras Using Sun Positions." Remote Sensing 13, no. 13 (2021): 2455. http://dx.doi.org/10.3390/rs13132455.

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Visible and infrared binocular all-sky-view cameras can provide continuous and complementary ground-based cloud observations. Accurate angular calibration for every pixel is an essential premise to further cloud analysis and georeferencing. However, most current calibration methods mainly rely on calibration plates, which still remains difficult for simultaneously calibrating visible and infrared binocular cameras, especially with different imaging resolutions. Thus, in this study, we present a simple and convenient angular calibration method for wide field-of-view visible and infrared binocul

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Freeman, Alan W. "Multistage Model for Binocular Rivalry." Journal of Neurophysiology 94, no. 6 (2005): 4412–20. http://dx.doi.org/10.1152/jn.00557.2005.

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Binocular rivalry is the alternating perception that occurs when incompatible stimuli are presented to the two eyes: one monocular stimulus dominates vision and then the other stimulus dominates, with a perceptual switch occurring every few seconds. There is a need for a binocular rivalry model that accounts for both well-established results on the timing of dominance intervals and for more recent evidence on the distributed neural processing of rivalry. The model for binocular rivalry developed here consists of four parallel visual channels, two driven by the left eye and two by the right. Ea

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Peng, Gang, Yicheng Zhou, Lu Hu, et al. "VILO SLAM: Tightly Coupled Binocular Vision–Inertia SLAM Combined with LiDAR." Sensors 23, no. 10 (2023): 4588. http://dx.doi.org/10.3390/s23104588.

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For the existing visual–inertial SLAM algorithm, when the robot is moving at a constant speed or purely rotating and encounters scenes with insufficient visual features, problems of low accuracy and poor robustness arise. Aiming to solve the problems of low accuracy and robustness of the visual inertial SLAM algorithm, a tightly coupled vision-IMU-2D lidar odometry (VILO) algorithm is proposed. Firstly, low-cost 2D lidar observations and visual–inertial observations are fused in a tightly coupled manner. Secondly, the low-cost 2D lidar odometry model is used to derive the Jacobian matrix of th

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Ashcraft, Teresa A., Tyler McCabe, Caleb Redshaw, et al. "Deep Large Binocular Camera r-band Observations of the GOODS-N Field." Publications of the Astronomical Society of the Pacific 135, no. 1044 (2023): 024101. http://dx.doi.org/10.1088/1538-3873/aca1e0.

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Abstract We obtained 838 Sloan r-band images (∼28 hr) of the GOODS-North field with the Large Binocular Camera (LBC) on the Large Binocular Telescope in order to study the presence of extended, low surface brightness features in galaxies and investigate the trade-off between image depth and resolution. The individual images were sorted by effective seeing, which allowed for optimal resolution and optimal depth mosaics to be created with all images with seeing FWHM < 0.″9 and FWHM < 2.″0, respectively. Examining bright galaxies and their substructure as well as accurately deblending overl

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Blais, Brian S., Mikhail Y. Frenkel, Scott R. Kuindersma, et al. "Recovery From Monocular Deprivation Using Binocular Deprivation." Journal of Neurophysiology 100, no. 4 (2008): 2217–24. http://dx.doi.org/10.1152/jn.90411.2008.

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Ocular dominance (OD) plasticity is a robust paradigm for examining the functional consequences of synaptic plasticity. Previous experimental and theoretical results have shown that OD plasticity can be accounted for by known synaptic plasticity mechanisms, using the assumption that deprivation by lid suture eliminates spatial structure in the deprived channel. Here we show that in the mouse, recovery from monocular lid suture can be obtained by subsequent binocular lid suture but not by dark rearing. This poses a significant challenge to previous theoretical results. We therefore performed si

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Stollenwerk, Lars, and Mathias Bode. "Lateral Neural Model of Binocular Rivalry." Neural Computation 15, no. 12 (2003): 2863–82. http://dx.doi.org/10.1162/089976603322518777.

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This article introduces a two-dimensionally extended, neuron-based model for binocular rivalry. The basic block of the model is a certain type of astable multivibrator comprising excitatory and inhibitory neurons. Many of these blocks are laterally coupled on a medium range to provide a two-dimensional layer. Our model, like others, needs noise to reproduce typical stochastic oscillations. Due to its spatial extension, the noise has to be laterally correlated. When the contrast ratio of the pictures varies, their share of the perception time changes in a way that is known from comparable exper

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Dineva, Ekaterina, Carsten Denker, Meetu Verma, Klaus G. Strassmeier, Ilya Ilyin, and Ivan Milic. "Sun-as-a-star observations of the 2017 August 21 solar eclipse." Proceedings of the International Astronomical Union 15, S354 (2019): 473–80. http://dx.doi.org/10.1017/s1743921319010019.

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AbstractThe Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) is a state-of-the-art, thermally stabilized, fiber-fed, high-resolution spectrograph for the Large Binocular Telescope (LBT) at Mt. Graham, Arizona. During daytime the instrument is fed with sunlight from the 10-millimeter aperture, fully automated, binocular Solar Disk-Integrated (SDI) telescope. The observed Sun-as-a-star spectra contain a multitude of photospheric and chromospheric spectral lines in the wavelength ranges 4200–4800 Å and 5300–6300 Å. One of the advantages of PEPSI is that solar spectra are recorded

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Tabandeh, H., L. Ranganath, and V. Marks. "Visual Function during Acute Hypoglycaemia." European Journal of Ophthalmology 6, no. 1 (1996): 81–86. http://dx.doi.org/10.1177/112067219600600116.

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Hypoglycaemia symptoms are of particular interest in view of the importance of hypoglycaemia unawareness. Visual symptoms arising during acute hypoglycaemia may be the result of metabolic disturbances in the visual pathways within the central nervous system or impairment of the refractive apparatus of the eye and binocular function. This study investigated the effect of hypoglycaemia upon visual acuity, binocular interaction and contrast sensitivity. Various aspects of visual function were examined in ten normal subjects before, during and after acute insulin-induced hypoglycaemia. A simultane

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Perna, M., M. Curti, G. Cresci, et al. "LBT/ARGOS adaptive optics observations of z ∼ 2 lensed galaxies." Astronomy & Astrophysics 618 (October 2018): A36. http://dx.doi.org/10.1051/0004-6361/201732387.

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Aims. Gravitationally lensed systems allow a detailed view of galaxies at high redshift. High spatial- and spectral-resolution measurements of arc-like structures can offer unique constraints on the physical and dynamical properties of high-z systems. Methods. We present near-infrared spectra centred on the gravitational arcs of six known z ∼ 2 lensed star-forming galaxies of stellar masses of 109−11 M⊙ and star formation rate (SFR) in the range between 10 and 400 M⊙ yr−1. Ground layer adaptive optics (AO)-assisted observations are obtained at the Large Binocular Telescope (LBT) with the LUCI

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Dall’Oglio, G., A. Miriametro, G. Morgante, L. Pizzo, and L. Valenziano. "An Instrument Devoted to the Study of mm/sub-mm Galactic Emission at Dome C." Publications of the Astronomical Society of Australia 13, no. 1 (1996): 44–47. http://dx.doi.org/10.1017/s1323358000020518.

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AbstractAn experiment has been developed in order to map the submillimetre Galactic emission at four different wavelengths between 400 μm and 2 mm at an angular scale of 1°. A binocular telescope system has been realised by means of two off-axis wobbling parabolic mirrors, each one coupled to a two-channel 3He photometer. A first run of observations from Dome C is planned for the Antarctic summer 1995–96.

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Patil, Kishor G., Deeksha Dabrase, and Virendra A. Shende. "Birds of Rawanwadi Region Bhandara, Central India." Malaysian Journal of Medical and Biological Research 5, no. 2 (2018): 109–16. http://dx.doi.org/10.18034/mjmbr.v5i2.459.

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The region of Rawanwadi reservoir is a good habitat for insects, fishes, reptiles as well as birds. Its geographical location is 21.043197 N, 79.729924 E. Observations were done by two visits on every month from May 2015 to April 2016 in the morning and evening hours. Bird observation and recording were done with the help of binocular and digital cameras. Total 143 species of birds were recorded belonging to 15 orders and 41 families. Out of total 143 species 07 are migrant, 95 are Resident and 41 are Resident migrant. Seasonal variation is well marked in birds due to availability of food and

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Verhoef, Bram-Ernst, Rufin Vogels, and Peter Janssen. "Binocular depth processing in the ventral visual pathway." Philosophical Transactions of the Royal Society B: Biological Sciences 371, no. 1697 (2016): 20150259. http://dx.doi.org/10.1098/rstb.2015.0259.

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One of the most powerful forms of depth perception capitalizes on the small relative displacements, or binocular disparities, in the images projected onto each eye. The brain employs these disparities to facilitate various computations, including sensori-motor transformations (reaching, grasping), scene segmentation and object recognition. In accordance with these different functions, disparity activates a large number of regions in the brain of both humans and monkeys. Here, we review how disparity processing evolves along different regions of the ventral visual pathway of macaques, emphasizi

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Piggins, D., and C. J. C. Phillips. "The eye of the domesticated sheep with implications for vision." Animal Science 62, no. 2 (1996): 301–8. http://dx.doi.org/10.1017/s1357729800014612.

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AbstractThe eyes of eighteen female sheep (Ovis aries) were refracted and details of inter ocular distance, pupil size, shape and fundus presence recorded. The sheep eyes generally possessed very low hyperopia with little astigmatism, such physiological optics being expected to produce a well focused retinal image for objects in the middle and long distance. No evidence was found for accommodation, which would have produced a well focused ocular image for near objects. A further 10 sheep had their monocular and binocular visual fields measured. The estimated visual field suggests the existence

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Radach, R., D. Heller, P. Wiebories, and W. Jaschinski. "Binocular Coordination, Fixation Disparity, and Ocular Dominance." Perception 25, no. 1_suppl (1996): 128. http://dx.doi.org/10.1068/v96p0208.

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In a series of experiments we have quantified the spatial and temporal dynamics of binocular coordination. Tasks studied ranged from simple scanning and letter detection to complex visual processing in text reading. In all of these paradigms we found similar eye movement characteristics: in 70% to 90% of the observations, the saccade of the abducting eye is larger, relative differences being in the order of 5% to 15% of the amplitude. During the subsequent fixation the disparity is typically reduced by a convergence movement (about 1 deg s−1), which sometimes exceeds the initial saccade amplit

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Sathick, O. "PRESENT STATUS OF LESSER WHISTLING DUCK (DENDROCYGNA JAVANICA) AMONG THE TOTAL AVIAN SPECIES AT MAVOOR WETLAND, KERALA, SOUTH INDIA." International Journal of Zoology and Applied Biosciences 2, no. 1 (2018): 32–37. https://doi.org/10.5281/zenodo.1311139.

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Avian status of Mavoor wetland at Calicut district, Kerala was studied during the period of June 2015 to March 2016. The line transect method was adopted for direct observation of birds. The observed birds by binocular and habitats were photographed by camera. Observations and counting were recorded monthly four days during morning (6 am - 10 am) and evening (4 pm - 6.30 pm). Almost 41 species of birds were observed including 22 families. Most of the birds were residential and 6 species were recorded as migrant. Local migrant of 7 species of lesser whistling ducks were observed in highest numb

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Pedani, Marco. "Sky Surface Brightness at Mount Graham: UBVRI Science Observations with the Large Binocular Telescope." Publications of the Astronomical Society of the Pacific 121, no. 881 (2009): 778–86. http://dx.doi.org/10.1086/603605.

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ENACHE (TROIA), Stela-Daniela, Nela TALMACIU, Ion MITREA, Monica HEREA, Mihai TALMACIU, and Ionela MOCANU. "OBSERVATIONS ON THE ENTOMOFAUNA EXISTING IN THE CULTURE OF GOJI (LYCIUM BARBARUM)." "Annals of the University of Craiova - Agriculture Montanology Cadastre Series " 53, no. 2 (2024): 69–72. http://dx.doi.org/10.52846/aamc.v53i2.1507.

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The observations were made in 2022 on a goji plantation within the Vinifruct Society, located in Raducaneni, Iasi. To capture the entomofauna, we used Bio-Plantella yellow sticky traps. These were installed in the goji culture in 2022, starting from May until August. The reading of the catches was done periodically, with the naked eye or with the help of a binocular magnifier. The traps were changed every four weeks. Two traps were used at a distance of 10–12 m between them. The determination of the captured material was done with the help of the Raitter and Panin determiners. From the analysi

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Aastrup, P., and A. Mosbech. "Transect width and missed observations in counting muskoxen (Ovibos moschatus) from fixed-wing aircraft." Rangifer 13, no. 3 (1993): 99. http://dx.doi.org/10.7557/2.13.2.1096.

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While conductioning muskox-censuses (Ovibos moschatus) in winter in Jameson Land, NE Greenland, from a fixed-wing aircraft, we examined the width of transects covered. We used a laser range-finder binocular for measuring the distance to observed groups. We found that 1000 m was a reasonable limit for observing a high proportion of the muskoxen present even though it was possible to observe muskoxen from 4000 m or even more. Using two observers on the right side of the aircraft each speaking into a tape recorder with an automatic time signal, we recorded observations and performed a double-obse

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Howard, Ian P. "Alhazen's Neglected Discoveries of Visual Phenomena." Perception 25, no. 10 (1996): 1203–17. http://dx.doi.org/10.1068/p251203.

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The first three books of the Book of Optics written by Alhazen in Cairo in the eleventh century were translated into English by A I Sabra in 1989. Book I deals with optics, the structure of the eye, image formation in the eye, and with the visual pathways. This book inspired all other books on optics from the thirteenth to the seventeenth century and formed the basis upon which Kepler solved the problem of image formation. However, Alhazen's work contained in Books II and III has been almost totally ignored. These two books contain an account of hundreds of observations and experiments carried

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Zhou, Weimin. "Analysis of the Observations for Three Telescopes: EHT, FAST and LBTI." Highlights in Science, Engineering and Technology 88 (March 29, 2024): 278–85. http://dx.doi.org/10.54097/9k8yw745.

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As technology continuously advances, the telescope technologies available to humans are becoming increasingly refined, leading to the discovery of an ever-growing number of phenomena using these telescopes. This allows for a deeper understanding of the universe one inhabits, with more astronomical phenomena receiving scientific explanations. This article primarily seeks to broaden our knowledge in this area by describing three distinct astronomical telescopes. It introduces the components and detection principles of the Event Horizon Telescope (EHT), FAST, and the Large Binocular Telescope Int

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Yan, F., N. Espinoza, K. Molaverdikhani, et al. "LBT transmission spectroscopy of HAT-P-12b." Astronomy & Astrophysics 642 (October 2020): A98. http://dx.doi.org/10.1051/0004-6361/201937265.

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The hot sub-Saturn-mass exoplanet HAT-P-12b is an ideal target for transmission spectroscopy because of its inflated radius. We observed one transit of the planet with the multi-object double spectrograph (MODS) on the Large Binocular Telescope (LBT) with the binocular mode and obtained an atmosphere transmission spectrum with a wavelength coverage of ~0.4–0.9 μm. The spectrum is relatively flat and does not show any significant sodium or potassium absorption features. Our result is consistent with the revised Hubble Space Telescope (HST) transmission spectrum of a previous work, except that t

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Kochanek, Christopher S., Jack M. M. Neustadt, and Krzysztof Z. Stanek. "The Search for Failed Supernovae with the Large Binocular Telescope: The Mid-infrared Counterpart to N6946-BH1." Astrophysical Journal 962, no. 2 (2024): 145. http://dx.doi.org/10.3847/1538-4357/ad18d7.

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Abstract We present JWST MIRI 5.6, 10, and 21 μm observations of the candidate failed supernova N6946-BH1 along with Hubble Space Telescope (HST) WFPC/IR 1.1 and 1.6 μm data and ongoing optical monitoring data with the Large Binocular Telescope. There is a very red, dusty source at the location of the candidate, which has only ∼10%–15% of the luminosity of the progenitor star. The source is very faint in the HST near-IR observations (∼103 L ⊙) and is not optically variable to a limit of ∼103 L ⊙ at the R band. The dust is likely silicate and probably has to be dominated by very large grains, a

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Karmali, Faisal, Stefano Ramat, and Mark Shelhamer. "Vertical skew due to changes in gravitoinertial force: A possible consequence of otolith asymmetry." Journal of Vestibular Research 16, no. 3 (2006): 117–25. http://dx.doi.org/10.3233/ves-2006-16304.

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During the alternating enhanced and reduced "gravity" levels of parabolic flight, subjects noted that a horizontally eccentric point target viewed binocularly in darkness seemed to split into two targets with vertical divergence. The amount of perceived divergence seemed to depend on instantaneous g level. This perceptual observation suggested a vertical misalignment of the eyes (vertical skew), dependent on the magnitude of g level sensed by the otoliths. While performing a different experiment during parabolic flight we recorded binocular eye position and analyzed these data to corroborate t

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Neilson, Peter, Megan Neilson, and Robin Bye. "A Riemannian Geometry Theory of Three-Dimensional Binocular Visual Perception." Vision 2, no. 4 (2018): 43. http://dx.doi.org/10.3390/vision2040043.

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We present a Riemannian geometry theory to examine the systematically warped geometry of perceived visual space attributable to the size–distance relationship of retinal images associated with the optics of the human eye. Starting with the notion of a vector field of retinal image features over cortical hypercolumns endowed with a metric compatible with that size–distance relationship, we use Riemannian geometry to construct a place-encoded theory of spatial representation within the human visual system. The theory draws on the concepts of geodesic spray fields, covariant derivatives, geodesic

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Pedani, M. "Sky surface brightness at Mount Graham II. First JHKs science observations with the Large Binocular Telescope." New Astronomy 28 (April 2014): 63–69. http://dx.doi.org/10.1016/j.newast.2013.10.005.

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Jayadevan, Vijai, Tadamasa Sawada, Edward Delp, and Zygmunt Pizlo. "Perception of 3D Symmetrical and Nearly Symmetrical Shapes." Symmetry 10, no. 8 (2018): 344. http://dx.doi.org/10.3390/sym10080344.

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The human visual system uses priors to convert an ill-posed inverse problem of 3D shape recovery into a well-posed one. In previous studies, we have demonstrated the use of priors like symmetry, compactness and minimal surface in the perception of 3D symmetric shapes. We also showed that binocular perception of symmetric shapes can be well modeled by the above-mentioned priors and binocular depth order information. In this study, which used a shape-matching task, we show that these priors can also be used to model perception of near-symmetrical shapes. Our near-symmetrical shapes are asymmetri

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Izotov, Y. I., T. X. Thuan та N. G. Guseva. "Large binocular telescope observations of new six compact star-forming galaxies with [Ne v] λ3426 Å emission". Monthly Notices of the Royal Astronomical Society 508, № 2 (2021): 2556–74. http://dx.doi.org/10.1093/mnras/stab2798.

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ABSTRACT We report the discovery of [Ne v] λ3426 emission, in addition to He ii λ4686 emission, in six compact star-forming galaxies. These observations considerably increase the sample of eight such galaxies discovered earlier by our group. For four of the new galaxies, the optical observations are supplemented by near-infrared spectra. All galaxies, but one, have H ii regions that are dense, with electron number densities of ∼ 300–700 cm−3. They are all characterized by high H β equivalent widths EW(H β) ∼ 190–520 Å and high O32 = [O iii] λ5007/[O ii] λ3727 ratios of 10–30, indicating young

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Dave, Sanjev, J. K. Manchanda, Sameer Manchanda, Sheena Manchanda, and Chitra Rekha. "Eye ball deviation patterns in traumatic cataract among children in Uttar Pradesh of India." Indian Journal of Clinical and Experimental Ophthalmology 8, no. 3 (2022): 403–8. http://dx.doi.org/10.18231/j.ijceo.2022.082.

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Paediatric cataract is an important cause of treatable childhood blindness, provided it is recognized and managed early. Timely diagnosis, management, and visual rehabilitation of a child with a paediatric cataract are crucial determinants of a favourable prognosis. This particular topic, study of pattern of deviation of eye ball after traumatic cataract in children was selected because of the difference between the firm literature of Keith Lyle and the clinical observations. This study includes analysis of 25 patients. The key findings of this study were: Maximum incidence of traumatic catara

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Hildreth, Ellen C. "Computational studies of the extraction of visual spatial information from binocular and motion cues." Canadian Journal of Physiology and Pharmacology 66, no. 4 (1988): 464–77. http://dx.doi.org/10.1139/y88-076.

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This paper reviews some of the contributions that work in computational vision has made to the study of biological vision systems. We concentrate on two areas where there has been strong interaction between computational and experimental studies: the use of binocular stereo to recover the distances to surfaces in space, and the recovery of the three-dimensional shape of objects from relative motion in the image. With regard to stereo, we consider models proposed for solving the stereo correspondence problem, focussing on the way in which physical properties of the world constrain possible meth

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Raczkowski, D., D. J. Uhlrich, and S. M. Sherman. "Morphology of retinogeniculate X and Y axon arbors in cats raised with binocular lid suture." Journal of Neurophysiology 60, no. 6 (1988): 2152–67. http://dx.doi.org/10.1152/jn.1988.60.6.2152.

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1. We examined the terminal arbors of single, physiologically identified retinogeniculate X and Y axons in 13 adult cats raised from birth with binocular lid suture. We recorded in the optic tract from 146 retinogeniculate axons. We studied the response properties of each axon encountered and attempted to penetrate it for labeling with horseradish peroxidase. 2. We attempted to classify each retinogeniculate axon as X or Y on a standard battery of tests. We thus identified 46 X and 91 Y axons; 5 axons had unusual response properties, and 4 axons were lost before they could be adequately identi

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Rabien, S., R. Angel, L. Barl, et al. "ARGOS at the LBT." Astronomy & Astrophysics 621 (December 19, 2018): A4. http://dx.doi.org/10.1051/0004-6361/201833716.

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Having completed its commissioning phase, the Advanced Rayleigh guided Ground-layer adaptive Optics System (ARGOS) facility is coming online for scientific observations at the Large Binocular Telescope (LBT). With six Rayleigh laser guide stars in two constellations and the corresponding wavefront sensing, ARGOS corrects the ground-layer distortions for both LBT 8.4 m eyes with their adaptive secondary mirrors. Under regular observing conditions, this set-up delivers a point spread function (PSF) size reduction by a factor of 2–3 compared to a seeing-limited operation. With the two LUCI infrar

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Riesenhuber, M., H. U. Bauer, D. Brockmann, and T. Geisel. "Breaking Rotational Symmetry in a Self-Organizing Map Model for Orientation Map Development." Neural Computation 10, no. 3 (1998): 717–30. http://dx.doi.org/10.1162/089976698300017719.

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We analyze the pattern formation behavior of a high-dimensional self-organizing map (SOM) model for the competitive projection of ON-center-type and OFF-center-type inputs to a common map layer. We mathematically show, and numerically confirm, that even isotropic stimuli can drive the development of oriented receptive fields and an orientation map in this model. This result provides an important missing link in the spectrum of pattern formation behaviors observed in SOM models. Extending the model by including further layers for binocular inputs, we also investigate the combined development of

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Arifin, Mahfud, and Rina Devnita. "Micromorphological Characterization of Some Volcanic Soil In West Java." Indonesian Journal on Geoscience 3, no. 4 (2008): 195–203. http://dx.doi.org/10.17014/ijog.3.4.195-203.

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http://dx.doi.org/10.17014/ijog.vol3no4.20082Micromorphological characterization has been studied on six pedons of soils developing in volcanic materials in West Java. The pedons represent deposits of different volcanoes (Mount Tangkuban Perahu, Mount Patuha and Mount Papandayan) with different ages (Pleistocene, Holocene) within two types of volcanisms (andesitic, basaltic), and three agroclimatic zones (A, B1, B2). Undisturbed soil samples were taken from each identifiable horizon for thin section preparations. Observations were carried out by means of a magnifying lens, binocular stereomicr

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Vallely, P. J., M. A. Tucker, B. J. Shappee, J. S. Brown, K. Z. Stanek, and C. S. Kochanek. "Signatures of bimodality in nebular phase Type Ia supernova spectra." Monthly Notices of the Royal Astronomical Society 492, no. 3 (2020): 3553–65. http://dx.doi.org/10.1093/mnras/staa003.

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ABSTRACT One observational prediction for Type Ia supernovae (SNe Ia) explosions produced through white dwarf–white dwarf collisions is the presence of bimodal velocity distributions for the 56Ni decay products, although this signature can also be produced by an off-centre ignition in a delayed detonation explosion. These bimodal velocity distributions can manifest as double-peaked or flat-topped spectral features in late-time spectroscopic observations for favourable viewing angles. We present nebular-phase spectroscopic observations of 17 SNe Ia obtained with the Large Binocular Telescope. C

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READ, JENNY C. A., ANDREW J. PARKER, and BRUCE G. CUMMING. "A simple model accounts for the response of disparity-tuned V1 neurons to anticorrelated images." Visual Neuroscience 19, no. 6 (2002): 735–53. http://dx.doi.org/10.1017/s0952523802196052.

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Disparity-tuned cells in primary visual cortex (V1) are thought to play a significant role in the processing of stereoscopic depth. The disparity-specific responses of these neurons have been previously described by an energy model based on local, feedforward interactions. This model fails to predict the response to binocularly anticorrelated stimuli, in which images presented to left and right eyes have opposite contrasts. The original energy model predicts that anticorrelation should invert the disparity tuning curve (phase difference π), with no change in the amplitude of the response. Expe

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Keles, Engin, Matthias Mallonn, Carolina von Essen, et al. "The potassium absorption on HD189733b and HD209458b." Monthly Notices of the Royal Astronomical Society: Letters 489, no. 1 (2019): L37—L41. http://dx.doi.org/10.1093/mnrasl/slz123.

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ABSTRACT In this work, we investigate the potassium excess absorption around 7699 Å of the exoplanets HD189733b and HD209458b. For this purpose, we used high-spectral resolution transit observations acquired with the 2 × 8.4 m Large Binocular Telescope (LBT) and the Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI). For a bandwidth of 0.8 Å, we present a detection >7σ with an absorption level of 0.18 per cent for HD189733b. Applying the same analysis to HD209458b, we can set 3σ upper limit of 0.09 per cent, even though we do not detect a K-excess absorption. The investigatio

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Zanandréa, Ledilma Inês Duarte Colodetti, Gabriela Mantovanelli Oliveira, Andressa Silva Abreu, and Fausto Edmundo Lima Pereira. "Ocular lesions in gerbils (Meriones unguiculatus) infected with low larval burden of Toxocara canis: observations using indirect binocular ophthalmoscopy." Revista da Sociedade Brasileira de Medicina Tropical 41, no. 6 (2008): 570–74. http://dx.doi.org/10.1590/s0037-86822008000600005.

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To study the frequency of ocular lesions in 30 gerbils infected with 100 embryonated eggs of Toxocara canis, indirect binocular ophthalmoscopy was performed 3, 10, 17, 24, 31 and 38 days after infection. All the animals presented larvae in the tissues and 80% presented ocular lesions. Hemorrhagic foci in the choroid and retina were present in 92% of the animals with ocular lesions. Retinal exudative lesions, vitreous lesions, vasculitis and retinal detachment were less frequent. Mobile larvae or larval tracks were observed in four (13.3%) animals. Histological examination confirmed the ophthal

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Winslow, Donald. "Birdwatching: A field-based unit or short course." Hoosier Science Teacher 47, no. 1 (2024): 25–30. http://dx.doi.org/10.14434/thst.v47i1.37759.

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I taught Birdwatching for the Indiana Academy’s 2023 May Term. The latitude and flexibility of a standalone course provided opportunities for creative student expression. The focus was on recreational observation of birds with a modest introduction to the science of ornithology. Students gained skills in bird identification, interpretation of behavioral observations, and ecological study design. The only textbook was a field guide. Students were instructed to install and use the free mobile app Merlin. We met each morning for a total of 10 class sessions, each 3-4 hours long. Topics included b

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Toh, Y., and J. Y. Okamura. "Behavioural responses of the tiger beetle larva to moving objects: role of binocular and monocular vision." Journal of Experimental Biology 204, no. 4 (2001): 615–25. http://dx.doi.org/10.1242/jeb.204.4.615.

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The larva of the tiger beetle Cicindela chinensis is an ambushing hunter with a body length of 15–22 mm that lives in a tunnel in the ground. It ambushes prey, keeping its head horizontal at the opening of the tunnel. When prey approaches the tunnel, the larva jumps to snap at it. When an object moves beyond its jumping range (approximately 15 mm), however, the larva quickly withdraws deep into the tunnel. These responses are mediated by two of six pairs of stemmata. How does the larva judge the hunting range using such a simple visual system? A previous study suggested that both binocular and

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Marlany Rachman, Ranno, Gabrella Prananda Claudia, and Wa Ode Sitti Warsit Mahapati. "Evaluation of MiniPlast Filters for Microplastic Removal from Laundry Wastewater." Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) 15, no. 3 (2025): 472. https://doi.org/10.29244/jpsl.15.3.472.

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Microplastic pollution is considered a serious threat because it is associated with potential environmental and human health damage due to its bioaccumulation properties and ecological risks. An initiative emerged to make filters that have technical specifications for quality products. MiniPlast Filter is the newest type of filter innovation, implementing a sustainable system in its use in society. This research aims to determine the working system of the MiniPlast Filter in removing microplastics and the efficiency of eliminating microplastics using the MiniPlast Filter tool. The study examin

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Hernández-Lucena, Julia, Federico Alonso-Aliste, Jonatan Amián-Cordero, and José-María Sánchez-González. "Exploring the Effect of Preoperative Stereopsis on Visual Outcomes in Hyperopic Presbyopes Treated with PresbyOND® Laser Blended Vision Micro-Monovision." Journal of Clinical Medicine 12, no. 19 (2023): 6399. http://dx.doi.org/10.3390/jcm12196399.

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We investigated the effects of Laser Blended Vision (LBV) on binocular summation and stereopsis in the treatment of presbyopia and hyperopia. Using a unidirectional, retrospective longitudinal design, data from 318 patients who underwent the Zeiss PresbyOND® LBV surgical procedure at Tecnolaser Clinic Vision Ophthalmology Center in Seville, Spain, were analyzed. The findings indicate that stereopsis quality significantly influenced short-term post-operative visual outcomes in measures like Uncorrected Distance and Near Visual Acuity (UDVA and UNVA). However, the impact of stereopsis on visual

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Nurtamara, Luthfiana, Sri Amintarti, Aulia Ajizah, Riya Irianti, and Dewi Amelia Widiyastuti. "A Workshop on the Utilization of Light Microscope for Biology Education Pre-Service Students of FKIP ULM through the Use of Wet Mount Preparations." Kayuh Baimbai: Jurnal Pengabdian Masyarakat 1, no. 2 (2024): 46–50. http://dx.doi.org/10.69959/kbjpm.v1i2.36.

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Microscopes in learning biology are very important as a tool for students in studying microscopic organisms and objects that cannot be seen by the eye directly. The results of the needs analysis show that biology education students in the Year of 2022 have never received training in the use and maintenance of microscopes and have never used a microscope with a magnification of 1000x. therefore, 98% of the survey results to participants indicate the need for training in the use of microscopes. The training on the use of light microscope was trained to make wet mount preparations of Rhoeo discol

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K C, Binod, Sujan Sapkota, Subarna Maharjan, Arjun Bhattarai, Kabi Raj Paudyal, and Lalu Prasad Paudel. "Mineralogy and texture of the eastern part of the Palung Granite, Lesser Himalaya, central Nepal." Journal of Nepal Geological Society 67 (December 31, 2024): 163–75. https://doi.org/10.3126/jngs.v67i1.74587.

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Geological mapping of the granite body along the Kulekhani-Palung area was carried out and the geological boundary of the granite body was well-traced out in 1:25,000 scales. This study investigates the mineralogical and textural characteristics of the Palung Granite, located in the Lesser Himalaya region of central Nepal, with the primary objective of classifying the granitic massif. Field observations, hand sample analysis, binocular observation of individual grains and thin section studies were carried out to assess the mineralogy and texture of the rocks. The Palung massif reveals four dis

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