There is much evidence to suggest that unaided visual acuity is not an unalterable physiological process. Psychological processes allow some degree of pupil control, blur interpretation, accommodative flexibility, and other cognitive mediation of acuity. ...
National Technical Information Service (NTIS)
Servocontrol infrared optometer applied to study of volitional control of human visual accommodation
NASA Technical Reports Server (NTRS)
Many factors other than retinal image defocus have been found to influence the visual accommodation
The abnormal contraction of ciliary muscles due to the performance of a near visual task for several hours causes various vision problems such as asthenopia and visual loss. However, these problems can be resolved by activating the muscles by alternately repeating negative and positive accommodation. In this study, we have verified the ...
NASA Astrophysics Data System (ADS)
This investigation explored the importance of color as a factor in deterioration of correct visual accommodation and involuntary regression to the resting point of accommodation. The involvement of voluntary control of accommodation processes was manipula...
... Accession Number : ADA131698. Title : Visual Accommodation, the Mandelbaum Effect, and Apparent Size. Descriptive Note : Technical rept.,. ...
DTIC Science & Technology
... Accession Number : ADA074415. Title : Visual Accommodation Responses in a Virtual Image Environment. Descriptive Note : Phase rept.,. ...
... Accession Number : ADA094675. Title : Locus of the Stimulus to Visual Accommodation: Where in the World, or Where in the Eye. ...
... Title : Effects of Magnification and Visual Accommodation on Aimpoint Estimation in Simulated Landings With Real and Virtual Image Displays. ...
... Accession Number : ADA108510. Title : Apparent Size and Visual Accommodation under Day and Night Conditions. Descriptive ...
A summary report of a research effort related to the human visual accommodation system is presented. A theoretical study of the accommodation system was made. Subsequent effort was aimed at the development of specialized instrumentation for experiments de...
Polarity cue for visual accomodation response of trained subjects to target motion direction change,
Accommodation, convergence, and stereoacuity were measured in 19 aviators at sea level and at altitudes to 18,000 feet. Most subjects showed a decrement of all three skills, while none improved. Hypoxia has a detrimental effect on these functions, but the...
Apr 21, 2011 ... Visual amplitude of accommodation. Visual color perception. Visual depth perception. Visual fields. Visual fusional amplitudes ...
NASA Website
The object of this paper is to describe an internet-based system and technique for improving performance on visuomotor tasks. The technique can be used in any setting where the internet can be accessed, and can be adapted for improving a variety of visual tasks. Sample learning curves for acquiring the visual ...
... Accession Number : ADA082433. Title : The Moon Illusion: Apparent Size and Visual Accommodation Distance. Descriptive Note : Interim rept.,. ...
... Accession Number : ADA113706. Title : The Dark Focus of Visual Accommodation: Its Existence, Its Measurement, Its Effects. ...
PurposeMyopia in school-age children has become increasingly prevalent in industrialized countries, especially in Asia. A large population of school-age children still suffers from low visual acuity. We have developed a novel, safe and noninvasive training method to activate a pupillary constriction response during far accommodation that results in ...
PubMed Central
... developed that permits measurement of performance of primates, through the ... One accommodates the primate and provides him with a response ...
... quantification of visual fatigue. visual accommodation, visual performance, dark focus, empty field myopia, space adaptation syndrome, vision testing.
The dark focus or resting state of visual accommodation is that refractive state to which the eye tends to return in the absence of any visual stimulus, as in complete darkness. This tendency is reviewed in terms of past and current attempts at its quanti...
AimTo determine whether eyes implanted with the Lenstec KH?3500 �accommodative� intraocular lenses (IOLs) have improved subjective and objective focusing performance compared to a standard monofocal IOLs.Methods28 participants were implanted monocularly with a KH?3500 �accommodative� IOL and 20 controls with a Softec1 IOL. ...
... duration of near vision tasks have on visual accommodation; and ... 1. 3 The Effects of Age on Amplitude of Accommodation ..... 17 Pý ...
The effects upon range of accommodation and color vision of reduced atmospheric pressure, at partial
Although visual discomfort symptoms associated with near work have been correlated with clinical measures of accommodation, studies using objective recordings have not found corresponding deficits in accommodative function. One problem with previous studies is that accommodation measures have been too brief to ...
PubMed
This review aims to document the efficacy and validity of vision therapy for modifying and improving vision functioning. The paper describes the essential components of the visual system and disorders which can be physiologically and clinically identified. Vision therapy is defined as a clinical approach for correcting and ameliorating the effects of ...
ERIC Educational Resources Information Center
The study investigated how to facilitate teachers in developing their work in improving the teaching and learning of children with visual impairment (CVI) accommodated in ordinary classrooms. The study takes the form of collaborative action research where the researcher works in collaboration with the teachers. The project is being ...
Hyoscine skin patches diminish salivation by their anticholinergic action. The aim of reporting this case series is to present the ophthalmic side effects in children, and to highlight the precautions to take. Five children (two males, three females; age range 8-18y) with quadriplegic cerebral palsy (Gross Motor Function Classification System Level V) and profound intellectual impairment, wearing ...
The purpose of this study was to investigate the prevalence and types of non-strabismic accommodative and/or vergence dysfunctions in primary school children, and to determine the relationship of these dysfunctions to academic achievement. A total of 1031 parents and their children aged 9-13 years responded to the College of Optometrists in Vision Development Quality of Life ...
An apparatus for training of the human visual accommodation system is presented, specifically, useful for training a person to volitionally control his focus to his far point (normaly infinity) from a position of myopia due to functional causes. The funct...
The virtual image symbology of head-up displays (HUDs) is presented at optical infinity to the pilot. This design feature is intended to help pilots maintain visual focus distance at optical infinity. However, the accommodation response could be nearer th...
The effects upon range of accommodation and color vision of reduced atmospheric pressure, at partial and complete elimination of nitrogen, of hypoxia, and of exposure for varying periods of time to restricted visual environment, have been studied alone or...
Current strategies for compressing images neglect to accommodate certain aspects of the human visual
... The results were well accommodated by a summed similarity theory of recognition memory (Kahana & Sekuler, 2002). ...
... Descriptors : *NIGHT VISION, *GOGGLES, CONTROL, VISUAL DEFECTS, BIOFEEDBACK, OPTICAL INSTRUMENTS, NIGHT VISION DEVICES ...
... Descriptors : *PATENTS, *MEDICAL EQUIPMENT, *OPTOMETRY, DISPLAY SYSTEMS, ORIENTATION(DIRECTION), LUMINOSITY, VISUAL AIDS ...
This publication is about the visual quality of structures built to accommodate visitors and park administration and management in the national parks. It is about the relationship of structures to park resources and the complex systems of natural, prehist...
Changes in accommodative dynamics with repeated accommodation were studied in three anesthetized rhesus monkeys and two conscious humans. Maximum accommodation was centrally stimulated via the Edinger�Westphal nucleus in monkeys with a 4 s on, 4 s off paradigm (4 � 4) for 17 min, 4 � 1.5 for 27 min and 2 � 1 for 16 min. Humans ...
A navigation system was installed in many cars, and a large amount of information came to be offered to drivers in recent years. However, characters and symbols on the display are not easy for the aged to see because of a reduction in visual functions. We have proposed a method of deciding an appropriate character size not only for the youth but also for the elderly. This ...
Designing aircraft cockpits to accommodate the wide range of body sizes existing in the U.S. population has always been a difficult problem for Crewstation Engineers. The approach taken in the design of military aircraft has been to restrict the range of body sizes allowed into flight training, and then to develop standards and specifications to ensure that the majority of the ...
PurposeTo evaluate two clinical procedures, MEM and Nott retinoscopy, for detecting accommodative lags 1.00 diopter (D) or greater in children as identified by an open-field autorefractor.Methods168 children 8 to <12 years old with low myopia, normal visual acuity, and no strabismus participated as part of an ancillary study within the screening process ...
This manual describes different types of accommodations educators can use to include students with disabilities in general education classrooms, including accommodations relating to instructional methods and materials, assignments and classroom assessments, time demands and scheduling, learning environment, and use of special communication systems. Chapter ...
Reflections in computer screens are imaged behind the screen and therefore potentially create a conflicting cue to appropriate accommodation response to the plane of screen. We investigated the effect of screen reflections on accommodation response by producing reflections (1.33 D accommodation demand) surrounding and overlying the ...
The human vision system has visual functions for viewing 3D images with a correct depth. These functions are called accommodation, vergence and binocular stereopsis. Most 3D display system utilizes binocular stereopsis. The authors have developed a monocular 3D vision system with accommodation mechanism, which is useful function for ...
This validity study examined differential item functioning (DIF) results on large-scale state standards-based English-language arts assessments at grades 4 and 8 for students without disabilities taking the test under standard conditions and students who are blind or visually impaired taking the test with either a large print or braille form. Using the Mantel-Haenszel method, ...
The purpose of scientific visualization is to improve the ability of a human to analyze and understand data. A goal of visualization is improving productivity. If we measure the success of our visualization by measuring only the increase in productivity, ...
Theoretical and ray-tracing calculations on an accommodative eye model based on published anatomical data, together with wave-front experimental results on 15 eyes, are computed to study the change of spherical aberration during accommodation and its influence on the accommodation response. The three methodologies show that primary ...
We investigated the roles that blur, proximity and vergence cues play in the development of accommodation. Accommodative responses to targets incorporating one or more of these cues were measured for four adults and eight infants at 1.5 and 3 months of age using eccentric photorefraction. Adults showed accurate accommodation to blur ...
The flying fox, Pteropus giganteus, possesses a papillated retina and was previously thought to lack a mechanism for active accommodation. An investigation of the anatomy and physiology of accommodation in this megachiropteran bat revealed that it has a well developed ciliary muscle and that it can actively accommodate through a range ...
As pointed out by Kotulak, vergence/accommodation mismatch in Night Vision Systems, usually due to misadjustments of eyepiece focus, is sometimes a source of visual performance decrement. The increased separation between sensors existing in some modern binocular Helmet Mounted Display systems, creating "hyperstereopsis", was also identified to be ...
. Summer projects at museum help native students, visually handicappedIn addition to theusual flood an exhibit for visually handicapped peoplebegan as a collaborationbetween Rowanand Dr.Sally Rogow to adapt theexhibit to accommodate the visually handicapped. The next step in the preparation
E-print Network
... refraction and accommodation Visual disturbances 368.0 Amblyopia ex anopsia 368.1 Subjective visual disturbances 368.2 Diplopia (double vision ...
Improvement of Visualization of NASA A-Train Data in Google Earth ... Producing the KMZ file for one parameter of vertical data takes only 8 seconds while ...
The effects of auditory biofeedback training on myopia, visual acuity (VA), and psychological distress were evaluated in a controlled prospective study involving 55 mildly myopic (< or = -3.5 D) high school students. These myopes were divided into 2 groups, matched for age and dioptric defect: 33 were treated with visual training and 22 were not; 27 ...
The literature concerning the resting point for accommodation was reviewed. The physiological and anatomical evidence supporting an intermediate resting position were covered in sufficient detail to provide a context within which the behavioral evidence c...
Visual accommodation of 172 naval aviators in the dark was measured and compared to their most recent night carrier landing scores and the average distance at which an adversary aircraft was first sighted during air combat maneuver training. No significan...
Welcome to Information Visualization! I am delighted to be able to introduce to you the first issue of the peer-reviewed international journal dedicated to the research and practice of information visualization. The new journal will cover a variety of aspects of information visualization, ranging from fundamental research to practical ...
This study examined the effects of using a research based print reading program modified to accommodate beginning braille readers using an alphabet or uncontracted braille reading approach with five beginning braille readers. Four of the 5 participants displayed a clear increase in their ability to read high frequency words when they began using the Early Steps reading program ...
Listeners rapidly adjust to talkers' pronunciations, accommodating those pronunciations into the relevant phonemic category to improve subsequent perception. Previous work has suggested that such learning is restricted to pronunciations that are representative of how the speaker talks (Kraljic, Samuel, & Brennan, 2008). If an ambiguous pronunciation, ...
Accommodative response measurement according to angular resolution in autostereoscopic display based on lenticular lens and lens array method is presented. Conflict between accommodation and convergence is one of the most dominant factors leading to visual fatigue in viewing three-dimensional display. The conflict originates from ...
... 4. TITLE AND SUBTITLE Improving the Visual Magnitudes of the Planets in The Astronomical Almanac. 1. Mercury and Venus 5a. ...
Image data acquisition for the coronary arteries is generally implemented during the diastole rest period, in order to suppress blurring due to cardiac movement. The purpose of this study is to improve the semi-automated application to determine the cardiac rest period based on fuzzy logic. The cardiac rest period from 25 subjects were determined based on their normalized ...
Spatial contrast sensitivity varies considerably across the field of view, being highest at the fovea and dropping towards the periphery, in accordance with the changing density, type, and interconnection of retinal cells. This observation has enabled researchers to propose the use of multiple levels of detail for visual displays, attracting the name image foveation. These ...
Purpose:? In this longitudinal study, a group of school children with Down syndrome (DS) and reduced accommodation were prescribed bifocals and followed to investigate the impact of bifocal spectacles on early literacy and visual perceptual skills. The natural progression of early literacy skills in this population along with the changes with bifocals, ...
... On the other hand, the men evidence poorer acuity, more myopia, a tendency toward esophoria and less accommodative ability than is expected ...
You can reset the ranges of your data space to accommodate all your contained visualizations. When you reset your ranges, the following properties of the ...
... a. Visual Accommodation for Cockpit vs HUD Information (continuing ... algorithm development and the incorporation of threat data (Purple Haze) into ...
and visual accommodation - with 382 pilbts, divided into four groups which ..... If the ascents are rapid, the gases dissolved in the humors change from ...
task requiring cognitive activity. When so measured, many nonvisual factors have recently been found to elicit previously unsuspected effects (refs. ...
Accommodation has been suspected as a contributor to size illusions in virtual environments (VE) due to the lack of appropriate accommodative stimuli in a VE for the objects displayed. Previous experiments examining size-constancy in VE have shown that monocular cues to depth that accompany the object are a major contributor to correct size perception. ...
Development of the Arabidopsis Small RNA Project (ASRP) Database, which provides information and tools for the analysis of microRNA, endogenous siRNA and other small RNA-related features, has been driven by the introduction of high-throughput sequencing technology. To accommodate the demands of increased data, numerous improvements and updates have been ...
basic visual elements and to accommodate 3D data. An interdisciplinary scientific visualization course inspired us to choose the three basic types of visual elements. A review of graphic design literature of authors have investigated and classified the basic ele- ments of a visualization in ...
This article discusses strategies for including students with visual impairments in general education settings. It explains categories of visual impairments and how students with visual impairments learn. Auditory learning and visual learning accommodations are addressed, and checklists for ...
improve understanding of their physical and chemical properties, compounds of ... have the requisite liquid crystalline properties. .... Carbon Nanotubes Bend and Buckle to accommodate roughness of the surface of the component to ...
PURPOSE.: To report the effectiveness of various forms of vision therapy/orthoptics in improving accommodative amplitude and facility in children with symptomatic convergence insufficiency (CI) and co-existing accommodative dysfunction. METHODS.: In a randomized clinical trial, 221 children aged 9 to 17 years with symptomatic CI were ...
Page 1. UlI tiLL wt NTSC TR 88-028 00 cQUASI-MONOCHROMATIC VISUAL ENVIRONMENTS AND THE RESTING POINT OF ACCOMMODATION ...
Adaptive Mesh Refinement (AMR) is a highly effective simulation method for spanning a large range of spatiotemporal scales,such as astrophysical simulations that must accommodate ranges from interstellar to sub-planetary. Most mainstream visualization too...
A device was developed that permits measurement of performance of primates, through the visual modality, before and after application of pulsed ionizing radiation. Two platforms were constructed, each featuring 2 degrees of freedom. One accommodates the p...
... (4) The person lacks sufficient visual capacity to perform one or more of the...this section without the assistance of visual aids beyond contact lenses or eyeglasses...physically accommodate the person's handicap is an exit seat. (n) In order to...
Code of Federal Regulations, 2011
Head and eye movements, together with ocular accommodation enable us to explore our visual environment. The stability of this environment is maintained during saccadic and vergence eye movements due to reduced contrast sensitivity to low spatial frequency information. Our recent work has revealed a new type of selective reduction of contrast sensitivity to ...
Disposable dipstick-type DNA biosensors in the form of lateral flow strips are particularly useful for genotyping in a small laboratory or for field testing due to their simplicity, low cost and portability. Their unique advantage is that they enable visual detection in minutes without the use of instruments. In addition, the dry-reagent format minimizes the pipetting, ...
This document presents survey questions concerning rights of students with disabilities in postsecondary education and the responsibilities and rights of faculty and staff. The survey is intended to provide necessary information about disability laws and recent legal decisions to faculty and staff in the context of increasing enrollment of postsecondary students with disabilities and the ...
Visual accommodation plays a critical role in one's visual perception and activities of daily living. Age-related accommodation loss poses an increased risk to older adults' safety and independence. Although extensive effort has been made towards understanding the effect of age on steady-state ...
In the attempt to manage presbyopia, different intraocular lens designs have been proposed such as monofocal IOLs with monovision or multifocal IOLs. Even though the lenses mentioned offer satisfactory visual results, contemporary ophthalmology has not completely answered the presbyopic dilemma by simulating the accommodative properties of the crystalline ...
"The proliferation of graphical user interfaces has had a dramatic impact on the ability to work as a programmer. It is particularly difficult for the blind to create forms for visual programming applications, such as Visual Basic. A scripting language is introduced that enables the blind to create Visual Basic forms without needing to ...
NSDL National Science Digital Library
Science educators must address the needs of visually impaired students by making the appropriate accommodations in the laboratory and science classroom. This article provides practical strategies for engaging visually impaired students in science-related activities. Many of the instructional strategies discussed are applicable to all ...
Cardiovascular disease remains the primary killer worldwide. The heart, essentially an electrically driven mechanical pump, alters its mechanical and electrical properties to compensate for loss of normal mechanical and electrical function. The same adjustment also is performed in the vessels, which constantly adapt their properties to accommodate mechanical and geometrical ...
Adaptive management is a systematic and rigorous scientifically defensible program of learning from the outcomes of management actions, accommodating change, and improving management. The critical requirements and toolboxes of an information management framework, referred to as the Adaptive Management Platform (AMP), to realize the goal of adaptive ...
Energy Citations Database
4 experiments were conducted concerning the development of visual accommodation in 1- to 3-month-old infants. In experiments 1 and 2 dynamic retinoscopy was used to measure accomodation responses at 3 stimulus distances. The results of experiment 1 revealed better accommodative capability from 1 to 3 months than reported originally. ...
This article outlines the work undertaken by Imperial College Healthcare Trust to eliminate mixed sex accommodation in its hospitals. It gives background information on the issue, and details the trust's policy to tackle it, including monitoring and evaluation. PMID:20092209
... 7157, "Improving Visual hUfficlency in Flying," Task No. ... 58 VISUAL STANDARDS FOR FLYING IN US AIR FORCF�.... 61 ...
SERVIR is a regional visualization and monitoring system for Mesoamerica that integrates satellite and other geospatial data for improved scientific knowledge ... ...
NBII National Biological Information Infrastructure
... to the surface at a relatively low cost to the system. ... of perspective greatly improves the training capabilities of visual simulation systems. ...
Investigations for the improvement of flight simulators are reported. Topics include: visual cues in
... Based on notions of human-centered computing (HCC), we offer some suggestions on how to improve the visualizations and tools. ...
In the present study, we examined the visual accommodation of subjects who were gazing fixedly at 3D images from two different displays: a cathode ray tube (CRT) while wearing special glasses and a liquid crystal display (LCD) while not wearing special glasses. The subjects were 3 people aged 20 years (2 people) and 36 years, all with normal vision. ...
During conditions of visual occlusion, pilots are forced to rapidly adapt their scan to accommodate the new observable states via instruments rather than the visual environment. During this transition, the provision of aircraft state information via other than visual modalities improves pilot ...
Although optically based imaging techniques provide valuable functional and physiological information of the retina, they are mostly limited to the probing of the retinal surface and require an unobstructed light path. MRI, in contrast, could offer physiological and functional data without depth limitation. Blood oxygenation level-dependent functional MRI (BOLD fMRI) of the thin rat retina is, ...
The visual environment of a driver in a car or a pilot in an airplane has intervening objects from the vehicle such as A-pillar posts between the windscreen and the doors in the car or cockpit pillars in the airplane. The presence of such objects can bias the observer's visual accommodation response because of the Mandelbaum effect ...
The articles in this special issue make two important contributions to our understanding of the impact of accommodations on test score validity. First, they illustrate a variety of methods for collection and rigorous analyses of empirical data that can supplant expert judgment of the impact of accommodations. These methods range from internal analyses of ...
Previous studies have suggested that targets illuminated by monochromatic (narrow-band) light are less effective in stimulating the eye to change its focus than are black�white (broadband) targets. The present study investigates the influence of target spectral bandwidth on the dynamic accommodation response in eight subjects. The fixation target was a 3.5-cycle?deg ...
Jun 16, 2011 � Description: This paper is a description of a research effort directed to improving the visual image of mobile home parks in the landscape. ...
Treesearch
Children in a tribe of sea-gypsies from South-East Asia have been found to have superior underwater vision compared to European children. In this study, we show that the improved underwater vision of these Moken children is not due to better contrast sensitivity in general. We also show that European children can achieve the same underwater acuity as the Moken children. After ...
Advancements in technology have opened doorways to build new teaching and learning methods. Through conjunctive use of these technologies and methods, a classroom can be enriched to stimulate and improve student learning. The purpose of our research is to ascertain whether or not multi-touch technology enhances students' abilities to better comprehend and retain the knowledge ...
Designed as a resource for two-year college faculty and staff working with students with disabilities, this handbook contains facts about various disabilities, practical suggestions for improving services, and resource points for further information. Following a brief introduction, legal implications regarding disabled students are discussed for postsecondary education ...
The Earth Mover's Distance (EMD) is a similarity measure that captures perceptual difference between two distributions. Its computational complexity, however, prevents a direct use in many applications. This paper proposes a novel Differential EMD (DEMD) algorithm based on the sensitivity analysis of the simplex method and offers a speedup at orders of magnitude compared with its brute-force ...
The purpose of scientific visualization is to improve the ability of a human to analyze and understand data. A goal of visualization is improving productivity. If we measure the success of our visualization by measuring only the increase in productivity, we are missing a key capability of ...
Previous studies have compared visual skills of expert and novice athletes; referees' performance has not been addressed. Visual skills of two groups of expert referees, successful and unsuccessful in decision making, were compared. Using video clips of soccer matches to assess decision-making success of 41 national and international referees from 31 to 42 ...
Virtual globes have become indispensable tools for visualizing, understanding and presenting data from Earth and other planetary bodies. The scientific community has invested much effort into exploiting existing globes to their fullest potential by refining and adapting their capabilities to better satisfy specific needs. For example, Google Earth provides users with the ...
The influence of binocular stereoscopic (3D) television display on the human eye were compared with one of a 2D display, using human visual function testing and interviews. A 40- inch double lenticular display was used for 2D/3D comparison experiments. Subjects observed the display for 30 minutes at a distance 1.0 m, with a combination of 2D material and one of 3D material. ...
The inclusion of students with learning disabilities (LD) in assessment is deemed critical to improve the quality of educational opportunities for these students and to provide meaningful and useful information about student performance. Mandated inclusion and accountability for progress raise many interesting questions regarding how to fairly, effectively, and validly assess ...
Accommodations appearing on this table have been reviewed and do not change the content and/or performance standards of what is being measured by the test. Note: Both Accommodations and Modifications tables are updated periodically by the ODE through a formal review process that employs the Accommodations Panel. The most recent ...
... Off-the-Shelf US Aircraft and Tries to Refit. ... accommodate GPS. The trucking and railroad industries could use ... C. Insist on Design Specifications. ...
... an open-ended update of information. This evolutionary improvement of the hypertext encyclopedia accommodates the continuous addition of new pages and new associative links ... ...
... several audits still in process after several ... improve internal-control processes to accommodate ... not been promptly processed, adequately justified ...
... Relations with the gov.rnment improved considerably after Nguyen Cao Ky became ... Premier Nguyen Cao Ky referred to the possibility of re- ...
The addition of improved visualization capabilities to engineering design applications can help engineers visualize problems better, analyze problems more accurately, and find better solutions. Applications that involve visualization commonly use the visu...
The demand for improved energy storage systems has increased greatly with the evolution of new equipment requiring new and improved battery systems as a power source. Critical characteristics that power sources must accommodate are low cost, high energy d...
Recent technology developments produce an increasingly large volume of information. Therefore visualization of these data requires sophisticated and efficient methods that take the amount of data into account. The information often gets lost or hidden in displays of traditional information visualization techniques. A significant ...
As we approach the twenty-first century, the college population is becoming increasingly diverse. Research suggests that gender, racial and cultural differences can affect a student's response to different teaching methods. How can undergraduate astronomy courses be better designed to accommodate more of these diverse learning styles? This question was the focus of my ...
eye strain and several other problems, including diplopia and accommodation-convergence conflict (also referred to as vergence-focus conflict). Diplopia occurs when the disparity is greater than what the human such as accommodation-convergence conflict and diplopia (see Ware [2004], Linde [2003], and Luebke et al. [2003]). Model
There has long been a need in aircraft simulation for a wide angle visual display that will accommodate the entire crew of a large aircraft type such as a bomber or tanker. This study is concerned with the approach and design of a wide angle display for m...
In two experiments the apparent size of a simulated horizon moon was measured as a function of the distribution of texture in the natural vistas against which it appeared. Size was found to increase as the distance to the dominant textural stimulus to acc...
The need for precise lens accommodation to bring visual targets into sharp focus on the retina is far more urgent at night, when contrast is very low, than in bright daylight. However, it is at precisely this time that many individuals become myopic and f...
Insect attraction and pollination of flowers are controlled by characters such as: color (visual cue); shape (accommodation); opening and pollen dehiscence (timing); volatiles production (smell); and nectar secretion from nectary glands (reward). The floral nectary and its secretion products are tw...
Technology Transfer Automated Retrieval System (TEKTRAN)
Partial contents: Vision--Visual system of the Elasmobranchs (State of the art 1960-1975), Refraction and accommodations of the Elasmobranch eye, Brain organization in the Cartilaginous fishes, and Behavioral studies correlated with central nervous system...
Most humans tend toward myopia when presented with a visual field without sufficient detail to stimulate focusing mechanisms. This means that a pilot flying in darkness, or in an 'empty field' such as empty sky, will be likely to focus nearer the windscre...
Pollinator attraction and pollination of flowers are mediated by characters such as flower color (visual cue); flower shape (accommodation); flower opening and pollen dehiscence (timing); volatiles production (smell); and nectary gland and nectar secretion (reward). This gland and its complex secre...
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The test section could accommodate models with a wing span up to 12" and length ... Available non-intrusive flow-visualization techniques include shadowgraph ...
The prospect of a pilot's vision at night being reduced to a less than optimal state by night myopia has been debated for years in a large body of research. This report casts doubt on the existence of night myopia in young healthy pilots by presenting evi...
Discusses how modern schools require specific lighting systems to accommodate computers and other technologies. Describes special needs for direct and indirect lighting when considering visual display terminals and projectors, and the kind of lighting system best suited for distance learning. Offers ideas on classrooms' physical layout. (RJM)
Shifts in the apparent size and distance of real objects viewed binocularly and monocularly and of objects viewed indirectly through imaging displays are accompanied by shifts in visual accommodation distance. It is hypothesized that relaxation of accommo...
Six subjects on a building roof viewed the outside terrain through a projection device which superposed a full horizon moon on that view. Subjects judged the size of the moon in various scenery configurations by adjusting a comparison disc while accommoda...
...Corporation. The office must be convenient to and have full access to the plant, and must provide the inspector both visual and acoustic privacy. (2) The space provided must be adequate to accommodate the NRC resident inspection staff, a...
...by DOE. The office must be convenient to and have full access to the facility and must provide the inspector both visual and acoustic privacy. (2) The space provided must be adequate to accommodate two full-time inspectors, and other...
...DOE. The office shall be convenient to and have full access to the facility and shall provide the inspector both visual and acoustic privacy. (2) The space provided shall be adequate to accommodate a full-time inspector, a part-time...
... A Light Shaping Diffuser (LSD) installed in a stock flashlight as a replacement to the lens can improve the uniformity of an average flashlight and ...
We investigated whether improved early visual processing on cognitive remediation (CR) exercises generalizes to visual and auditory learning and information manipulation in schizophrenia. Fourteen participants received neuropsychological testing before and after CR consisting of visual, auditory and cognitive ...
Visual accommodation plays a critical role in one�s visual perception and activities of daily living. Age-related accommodation loss poses an increased risk to older adults� safety and independence. Although extensive effort has been made towards understanding the effect of age on steady-state ...
Researchers at the Idaho National Engineering and Environmental Laboratory and Montana State University have undertaken development of MINERVA, a patient-centric, multi-modal, radiation treatment planning system. This system can be used for planning and analyzing several radiotherapy modalities, either singly or combined, using common modality independent image and geometry construction and dose ...