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1
Improving Visual Acuity Performance.
1992-01-01

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)

2
Volitional control of visual accommodation
1971-01-01

Servocontrol infrared optometer applied to study of volitional control of human visual accommodation

NASA Technical Reports Server (NTRS)

3
The non-visual in visual accommodation
1975-01-01

Many factors other than retinal image defocus have been found to influence the visual accommodation

NASA Technical Reports Server (NTRS)

4
Effect of accommodation training by stereoscopic movie presentation on myopic youth
2010-02-01

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)

5
Quasi-Monochromatic Visual Environments and the Resting Point of Accommodation.
1988-01-01

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...

National Technical Information Service (NTIS)

6
Visual Accommodation, the Mandelbaum Effect, and Apparent ...
1979-11-01

... Accession Number : ADA131698. Title : Visual Accommodation, the Mandelbaum Effect, and Apparent Size. Descriptive Note : Technical rept.,. ...

DTIC Science & Technology

7
Visual Accommodation Responses in a Virtual Image ...

... Accession Number : ADA074415. Title : Visual Accommodation Responses in a Virtual Image Environment. Descriptive Note : Phase rept.,. ...

DTIC Science & Technology

8
Locus of the Stimulus to Visual Accommodation: Where in the ...
1979-11-01

... Accession Number : ADA094675. Title : Locus of the Stimulus to Visual Accommodation: Where in the World, or Where in the Eye. ...

DTIC Science & Technology

9
Effects of Magnification and Visual Accommodation on ...
1980-10-01

... Title : Effects of Magnification and Visual Accommodation on Aimpoint Estimation in Simulated Landings With Real and Virtual Image Displays. ...

DTIC Science & Technology

10
Apparent Size and Visual Accommodation under Day and ...

... Accession Number : ADA108510. Title : Apparent Size and Visual Accommodation under Day and Night Conditions. Descriptive ...

DTIC Science & Technology

11
Experimental Study of Visual Accommodation.
1972-01-01

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...

National Technical Information Service (NTIS)

12
Training the visual accommodation system.
1973-01-01

Polarity cue for visual accomodation response of trained subjects to target motion direction change,

NASA Technical Reports Server (NTRS)

13
The Effects of Hypoxia on Certain Aspects of Visual Performance.
1969-01-01

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...

National Technical Information Service (NTIS)

14
Experiment - Life Sciences Data Archive - NASA

Apr 21, 2011 ... Visual amplitude of accommodation. Visual color perception. Visual depth perception. Visual fields. Visual fusional amplitudes ...

NASA Website

15
Improving visual skills: a new internet application
2006-09-01

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 ...

NASA Astrophysics Data System (ADS)

16
The Moon Illusion: Apparent Size and Visual Accommodation ...
1978-11-01

... Accession Number : ADA082433. Title : The Moon Illusion: Apparent Size and Visual Accommodation Distance. Descriptive Note : Interim rept.,. ...

DTIC Science & Technology

17
The Dark Focus of Visual Accommodation: Its Existence, Its ...
1979-11-01

... Accession Number : ADA113706. Title : The Dark Focus of Visual Accommodation: Its Existence, Its Measurement, Its Effects. ...

DTIC Science & Technology

18
Training regimen involving cyclic induction of pupil constriction during far accommodation improves visual acuity in myopic children
2010-04-26

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

19
A VISUAL RESPONSE SYSTEM FOR RESEARCH WITH ...
1969-12-01

... developed that permits measurement of performance of primates, through the ... One accommodates the primate and provides him with a response ...

DTIC Science & Technology

20
Development of a Portable Dark Focus Instrument

... quantification of visual fatigue. visual accommodation, visual performance, dark focus, empty field myopia, space adaptation syndrome, vision testing.

NASA Website

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21
The Dark Focus of Visual Accommodation: Its Existence, Its Measurement, Its Effects.
1979-01-01

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...

National Technical Information Service (NTIS)

22
Subjective and objective performance of the Lenstec KH?3500 �accommodative� intraocular lens
2006-06-01

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. ...

PubMed Central

23
The Effects of Pilot Age, Lighting, and Head-Down Time on ...
1979-02-06

... duration of near vision tasks have on visual accommodation; and ... 1. 3 The Effects of Age on Amplitude of Accommodation ..... 17 Pý ...

DTIC Science & Technology

24
Effect of elimination of nitrogen and/or hypoxia or restricted visual environment on color vision and range of accommodation
1973-01-01

The effects upon range of accommodation and color vision of reduced atmospheric pressure, at partial

NASA Technical Reports Server (NTRS)

25
Accommodation response and visual discomfort.
2009-11-01

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

26
The Efficacy of Optometric Vision Therapy.
1988-02-01

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

27
Developing Teachers' Work for Improving Teaching and Learning of Children with Visual Impairment Accommodated in Ordinary Primary Schools
2008-12-01

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 ...

ERIC Educational Resources Information Center

28
Hyoscine Skin Patches for Drooling Dilate Pupils and Impair Accommodation: Spectacle Correction for Photophobia and Blurred Vision May Be Warranted
2007-06-01

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 ...

ERIC Educational Resources Information Center

29
Relationship between accommodative and vergence dysfunctions and academic achievement for primary school children.
2009-08-26

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 ...

PubMed

30
Visual Accommodation Trainer-Tester.
1983-01-01

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...

National Technical Information Service (NTIS)

31
Magnitude of Visual Accommodation to a Head-Up Display.
1981-01-01

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...

National Technical Information Service (NTIS)

32
Effect of Elimination of Nitrogen and/or Hypoxia or Restricted Visual Environment on Color Vision and Range of Accommodation.
1973-01-01

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...

National Technical Information Service (NTIS)

33
Visibility of DCT Basis Functions: Effects of Contrast Masking
1994-01-01

Current strategies for compressing images neglect to accommodate certain aspects of the human visual

NASA Technical Reports Server (NTRS)

34
Model-Driven Study of Visual Memory
2004-12-01

... The results were well accommodated by a summed similarity theory of recognition memory (Kahana & Sekuler, 2002). ...

DTIC Science & Technology

35
Is Increased Accommodation a Necessary Condition for ...
1994-03-01

... Descriptors : *NIGHT VISION, *GOGGLES, CONTROL, VISUAL DEFECTS, BIOFEEDBACK, OPTICAL INSTRUMENTS, NIGHT VISION DEVICES ...

DTIC Science & Technology

36
Accommodative Amplitude and Speed Measuring Instrument.
1986-10-21

... Descriptors : *PATENTS, *MEDICAL EQUIPMENT, *OPTOMETRY, DISPLAY SYSTEMS, ORIENTATION(DIRECTION), LUMINOSITY, VISUAL AIDS ...

DTIC Science & Technology

37
Visual Quality of Built Environments in National Parks.
1995-01-01

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...

National Technical Information Service (NTIS)

38
Dynamics of accommodative fatigue in rhesus monkeys and humans
2005-01-01

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 ...

PubMed Central

39
Display Method of In-vehicle Display System Based on Reduction in Aged Visual Function
2005-01-01

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 ...

NASA Astrophysics Data System (ADS)

40
Prediction of anthropometric accommodation in aircraft cockpits
2000-01-01

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 ...

NASA Astrophysics Data System (ADS)

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41
Accommodative Lag by Autorefraction and Two Dynamic Retinoscopy Methods
2009-03-01

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 ...

PubMed Central

42
Accommodations: Assisting Students with Disabilities. A Guide for Educators.
1998-12-01

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 ...

ERIC Educational Resources Information Center

43
VDT screen reflections and accommodation response.
1994-04-01

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 ...

PubMed

44
Monocular 3D display unit using soft actuator for parallax image shift
2010-11-01

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 ...

NASA Astrophysics Data System (ADS)

45
Light-weight monocular display unit for 3D display using polypyrrole film actuator
2010-05-01

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 ...

NASA Astrophysics Data System (ADS)

46
Using Differential Item Functioning to Investigate the Impact of Testing Accommodations on an English-Language Arts Assessment for Students Who Are Blind or Visually Impaired
2009-12-01

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, ...

ERIC Educational Resources Information Center

47
Components of Scientific Visualization.
1989-01-01

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, ...

National Technical Information Service (NTIS)

48
The change of spherical aberration during accommodation and its effect on the accommodation response.
2010-11-12

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 ...

PubMed

49
The development of accommodation.
1997-06-01

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 ...

PubMed

50
Visual accommodation in the flying fox (Pteropus giganteus).
1983-01-01

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 ...

PubMed

51
Comparative effects of vergence/accommodation conflicts with different interocular separation and viewing distances
2008-05-01

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 ...

NASA Astrophysics Data System (ADS)

52
Volume 25, Number 15.

. 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

53
Visual Dysfunction Following Blast-Related Traumatic Brain ...
2010-10-27

... refraction and accommodation Visual disturbances 368.0 Amblyopia ex anopsia 368.1 Subjective visual disturbances 368.2 Diplopia (double vision ...

DTIC Science & Technology

54
Improvement of Visualization of NASA A Improvement of Visualization of

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 ...

NASA Website

55
Changes in myopia, visual acuity, and psychological distress after biofeedback visual training.
1996-01-01

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 ...

PubMed

56
Visual Accommodation, the Mandelbaum Effect, and Apparent Size.
1979-01-01

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...

National Technical Information Service (NTIS)

57
Accommodative Status in the Dark of U.S. Navy Fighter Pilots.
1987-01-01

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...

National Technical Information Service (NTIS)

58
Information Visualization
2002-01-01

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 ...

E-print Network

59
Teaching Beginning Braille Reading Using an Alphabet or Uncontracted Braille Approach
2008-09-01

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 ...

ERIC Educational Resources Information Center

60
Perceptual learning evidence for contextually-specific representations.
2011-09-20

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, ...

PubMed

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61
Accommodation measurement according to angular resolution density in three-dimensional display
2011-02-01

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 ...

NASA Astrophysics Data System (ADS)

62
Improving the Visual Magnitudes of the Planets in The ...
2011-05-13

... 4. TITLE AND SUBTITLE Improving the Visual Magnitudes of the Planets in The Astronomical Almanac. 1. Mercury and Venus 5a. ...

DTIC Science & Technology

63
Radiologist model for cardiac rest period determination based on fuzzy rule.
2010-01-01

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 ...

PubMed

64
Multiresolution image compression using image foveation and simulated depth of field for stereoscopic displays
2004-05-01

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 ...

NASA Astrophysics Data System (ADS)

65
Bifocals in Down syndrome study (BiDS): analysis of video recorded sessions of literacy and visual perceptual skills.
2011-09-21

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, ...

PubMed

66
The Longitudinal Health Study: Visual Characteristics of 750 ...
1974-12-19

... On the other hand, the men evidence poorer acuity, more myopia, a tendency toward esophoria and less accommodative ability than is expected ...

DTIC Science & Technology

67
Resetting Dataspace Ranges

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 ...

NASA Website

68
Night Attack Workload Steering Group. Volume 3. Simulation ...
1982-06-01

... a. Visual Accommodation for Cockpit vs HUD Information (continuing ... algorithm development and the incorporation of threat data (Purple Haze) into ...

DTIC Science & Technology

69
MODIFICATIONS OF T-FE OCULAR REFRACTION OF PILOTS AT GeEAT ...

and visual accommodation - with 382 pilbts, divided into four groups which ..... If the ascents are rapid, the gases dissolved in the humors change from ...

NASA Website

70
Effects of Magnification and Visual Accommodation on Aimpoint ...

task requiring cognitive activity. When so measured, many nonvisual factors have recently been found to elicit previously unsuspected effects (refs. ...

NASA Website

71
Accommodation and size-constancy of virtual objects.
2007-12-08

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. ...

PubMed

72
Update of ASRP: the Arabidopsis Small RNA Project database.
2007-11-13

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 ...

PubMed

73
SciVL: A Descriptive Language for 2D Multivariate Scientific Visualization Synthesis

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 ...

E-print Network

74
Effective Classroom Adaptations for Students with Visual Impairments.
2000-12-01

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 ...

ERIC Educational Resources Information Center

75
Materials

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 ...

NASA Website

76
Treatment of Accommodative Dysfunction in Children: Results from a Randomized Clinical Trial.
2011-08-25

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 ...

PubMed

77
Quasi-Monochromatic Visual Environments and the Resting ...
2011-05-15

Page 1. UlI tiLL wt NTSC TR 88-028 00 cQUASI-MONOCHROMATIC VISUAL ENVIRONMENTS AND THE RESTING POINT OF ACCOMMODATION ...

DTIC Science & Technology

78
Production-Quality Tools for Adaptive Mesh Refinement Visualization.
2007-01-01

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...

National Technical Information Service (NTIS)

79
A Visual Response System for Research with Primates.
1969-01-01

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...

National Technical Information Service (NTIS)

80
14 CFR 121.585 - Exit seating.
2011-01-01

... (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

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81
Investigating the mechanisms that may underlie the reduction in contrast sensitivity during dynamic accommodation.
2010-05-01

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 ...

PubMed

82
A nanoparticle-based sensor for visual detection of multiple mutations
2011-04-01

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, ...

NASA Astrophysics Data System (ADS)

83
Faculty and Staff Survey of Knowledge of Disability Laws and Recent Legal Decisions. Postsecondary Accommodations for Academic and Career Success.
1995-12-01

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 ...

ERIC Educational Resources Information Center

84
Effects of age on dynamic accommodation.
2010-07-01

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 ...

PubMed

85
Real and Pseudoaccommodation in Accommodative Lenses.
2011-09-18

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 ...

PubMed

86
Real and Pseudoaccommodation in Accommodative Lenses
2011-09-18

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 ...

PubMed Central

87
Visual programming and the blind: the challenge and the opportunity
2006-01-01

"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

88
Teaching Science to the Visually Impaired
2004-07-01

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 ...

NSDL National Science Digital Library

89
Physiologic cardiovascular strain and intrinsic wave imaging.
2011-08-15

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 ...

PubMed

90
Adaptive Management Platform for Natural Resources in the Columbia River Basin
2002-05-01

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

91
The development of visual accommodation during early infancy.
1980-09-01

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. ...

PubMed

92
Eliminating mixed sex accommodation in hospital to improve patient experience.

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

PubMed

93
Vision in Military Aviation
1958-11-01

... 7157, "Improving Visual hUfficlency in Flying," Task No. ... 58 VISUAL STANDARDS FOR FLYING IN US AIR FORCF�.... 61 ...

DTIC Science & Technology

94
The Mesoamerican Regional Visualization and Monitoring System (SERVIR)

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

95
Texture in a Low Cost Visual System,

... to the surface at a relatively low cost to the system. ... of perspective greatly improves the training capabilities of visual simulation systems. ...

DTIC Science & Technology

96
Integration of visual and motion cues for flight simulator requirements and ride quality investigation
1976-01-01

Investigations for the improvement of flight simulators are reported. Topics include: visual cues in

NASA Technical Reports Server (NTRS)

97
Computer-Aided Visualization in Meteorology

... Based on notions of human-centered computing (HCC), we offer some suggestions on how to improve the visualizations and tools. ...

DTIC Science & Technology

98
Accommodative load for stereoscopic displays
2005-03-01

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. ...

NASA Astrophysics Data System (ADS)

99
Development of a nonlinear estimator-based model of pilot performance during brownout conditions
2006-01-01

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 ...

NASA Astrophysics Data System (ADS)

100
Blood oxygenation level-dependent (BOLD) functional MRI of visual stimulation in the rat retina at 11.7 T.
2010-12-03

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, ...

PubMed

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101
Blood oxygenation level-dependent (BOLD) functional MRI of visual stimulation in the rat retina at 11.7 T.
2010-12-01

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, ...

PubMed

102
Blood oxygenation level-dependent (BOLD) functional MRI of visual stimulation in the rat retina at 11.7 T
2010-12-03

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, ...

PubMed Central

103
Visual accommodation and target detection in the vicinity of a window post.
1989-02-01

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 ...

PubMed

104
Accessible Reading Assessments for Students with Disabilities: Summary and Conclusions
2009-12-01

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 ...

ERIC Educational Resources Information Center

105
Spectral bandwidth and ocular accommodation
1994-01-01

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 ...

E-print Network

106
A method for improved visual landscape compatibility of mobile ...
1979-01-01

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

107
Visual training improves underwater vision in children.
2006-06-27

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 ...

PubMed

108
Physics Learning Strategies with Multi-touch Technology
2011-03-01

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 ...

NASA Astrophysics Data System (ADS)

109
Disability Accommodation Handbook.
1992-09-01

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 ...

ERIC Educational Resources Information Center

110
Differential earth mover's distance with its applications to visual tracking.
2010-02-01

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 ...

PubMed

111
The components of scientific visualization
1989-10-01

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 ...

Energy Citations Database

112
Visual skills involved in decision making by expert referees.
2011-02-01

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 ...

PubMed

113
Crusta: Visualizing High-resolution Global Data
2009-12-01

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 ...

NASA Astrophysics Data System (ADS)

114
Evaluation of stereoscopic display with visual function and interview
1999-05-01

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. ...

NASA Astrophysics Data System (ADS)

115
Mathematics Assessment Accommodations: Implications of Differential Boost for Students with Learning Disabilities
2010-09-01

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 ...

ERIC Educational Resources Information Center

116
Type of Adaptation
2007-01-01

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 ...

E-print Network

117
Policy Recommendations to Improve Selected American ...
1992-04-01

... Off-the-Shelf US Aircraft and Tries to Refit. ... accommodate GPS. The trucking and railroad industries could use ... C. Insist on Design Specifications. ...

DTIC Science & Technology

118
Fire ecology hypertext: a tool for synthesizing and distributing knowledge

... an open-ended update of information. This evolutionary improvement of the hypertext encyclopedia accommodates the continuous addition of new pages and new associative links ... ...

NBII National Biological Information Infrastructure

119
At What Cost? Contingency Contracting in Iraq and ...
2009-06-01

... several audits still in process after several ... improve internal-control processes to accommodate ... not been promptly processed, adequately justified ...

DTIC Science & Technology

120
ACCOMMODATION AND COALITION IN SOUTH VIETNAM
1970-01-01

... Relations with the gov.rnment improved considerably after Nguyen Cao Ky became ... Premier Nguyen Cao Ky referred to the possibility of re- ...

DTIC Science & Technology

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121
Application of Visualization in Structural Engineering Design.
1999-01-01

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...

National Technical Information Service (NTIS)

122
Improved Magnesium/Manganese Dioxide Electrochemical Cell.
1988-01-01

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...

National Technical Information Service (NTIS)

123
Visually Effective Information Visualization of Large Data
2004-01-01

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 ...

E-print Network

124
Accommodating Diverse Learning Styles in Introductory Astronomy Courses for Non-science Majors
1994-12-01

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 ...

NASA Astrophysics Data System (ADS)

125
Foveated Gaze-Contingent Displays for Peripheral LOD Management, 3D Visualization, and Stereo Imaging

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

E-print Network

126
Wide-Angle, Multiviewer Infinity Display Design.
1977-01-01

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...

National Technical Information Service (NTIS)

127
The Moon Illusion: Apparent Size and Visual Accommodation Distance.
1978-01-01

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...

National Technical Information Service (NTIS)

128
Technical Refinement of the Vernier Optometer.
1988-01-01

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...

National Technical Information Service (NTIS)

129
Soybean and Tobacco Floral nectary Glands: their Structural and Functional Similarities and Differences

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)

130
Sensory Biology of Sharks, Skates, and Rays.
1978-01-01

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...

National Technical Information Service (NTIS)

131
Scheiner-Principle Pocket Optometer for Self-Evaluation and Biofeedback Accommodation Training.
1989-01-01

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...

National Technical Information Service (NTIS)

132
SOYBEAN AND TOBACCO FLORAL NECTARIES DIFFER DEVELOPMENTALLY AND FUNCTIONALLY TO PRODUCE NECTAR

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...

Technology Transfer Automated Retrieval System (TEKTRAN)

133
Multifactor Determinants of Visual Accommodation as a ...
1997-11-01

Page 1. Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8. Page 9. Page 10. Page 11. Page 12. Page 13. Page 14. Page 15. Page 16. Page ...

DTIC Science & Technology

134
Jet Exit Facility - NasaCRgis - NASA Langley GIS Team Home Page

The test section could accommodate models with a wing span up to 12" and length ... Available non-intrusive flow-visualization techniques include shadowgraph ...

NASA Website

135
Influence of Subject Expectation on Visual Accommodation in the Dark.
1991-01-01

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...

National Technical Information Service (NTIS)

136
Illuminating Classroom Design.
1995-12-01

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)

ERIC Educational Resources Information Center

137
How Big the Moon, How Fat the Eye.
1977-01-01

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...

National Technical Information Service (NTIS)

138
Apparent Size and Visual Accommodation under Day and Night Conditions.
1979-01-01

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...

National Technical Information Service (NTIS)

139
10 CFR 76.121 - Inspections.
2011-01-01

...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...

Code of Federal Regulations, 2011

140
10 CFR 63.75 - Inspections.
2011-01-01

...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...

Code of Federal Regulations, 2011

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141
10 CFR 60.75 - Inspections.
2011-01-01

...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...

Code of Federal Regulations, 2011

142
Improved Portable Lighting for Visual Aircraft Inspection,

... 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 ...

DTIC Science & Technology

143
Successful computer-based visual training specifically predicts visual memory enhancement over verbal memory improvement in schizophrenia.
2011-07-25

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 ...

PubMed

144
Effects of Age on Dynamic Accommodation
2010-07-01

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 ...

PubMed Central

145
MINERVA-a multi-modal radiation treatment planning system.
2004-11-01

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 ...

PubMed

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