keyword
MENU ▼
Read by QxMD icon Read
search

3D impression eye

keyword
https://www.readbyqxmd.com/read/30028243/how-much-stereoscopic-effect-does-laparoscopy-need-controlled-prospective-randomized-trial-on-surgical-task-efficiency-in-standardized-phantom-tasks
#1
Wolfgang Kunert, Thomas Auer, Pirmin Storz, Manuel Braun, Andreas Kirschniak, Claudius Falch
BACKGROUND: To regain 2-eyed vision in laparoscopy, dual-channeled optics have been introduced. With this optics design, the distance between the 2 front lenses defines how much stereoscopic effect is seen. This study quantifies the impact of an enhanced and a reduced stereo effect on surgical task efficiency. METHODS: A prospective single-blinded study was performed with 20 laparoscopic novices in an inanimate experimental setting. A standard bichannelled stereo system was used to perform a suturing and knotting task...
July 1, 2018: Surgical Innovation
https://www.readbyqxmd.com/read/26395011/bacterial-cellulose-composites-synthetic-strategies-and-multiple-applications-in-bio-medical-and-electro-conductive-fields
#2
REVIEW
Mazhar Ul-Islam, Shaukat Khan, Muhammad Wajid Ullah, Joong Kon Park
Bacterial cellulose (BC), owing to its pure nature and impressive physicochemical properties, including high mechanical strength, crystallinity, porous fibrous structure, and liquid absorbing capabilities, has emerged as an advanced biomaterial. To match the market demand and economic values, BC has been produced through a number of synthetic routes, leading to slightly different structural features and physical appearance. Chemical nature, porous geometry, and 3D fibrous structure of BC make it an ideal material for composites synthesis that successfully overcome certain deficiencies of pure BC...
December 2015: Biotechnology Journal
https://www.readbyqxmd.com/read/25696572/the-left-bundle-branch-block-revised-with-novel-imaging-modalities
#3
J van Dijk, H F J Mannaerts, T Germans, H A Hauer, P Knaapen, C A Visser, O Kamp
Left bundle branch block (LBBB) is related to abnormal cardiac conduction and mechanical asynchrony and is associated with hypertension and coronary artery disease. Improved evaluation of left ventricular (LV) mechanical asynchrony is needed, because of the increasing number of patients with LBBB and heart failure. In this paper, we describe tissue Doppler imaging (TDI), strain (rate) imaging and tissue tracking in LBBB patients. A variety of patterns of mechanical activation can be observed in LBBB patients...
November 2006: Netherlands Heart Journal
https://www.readbyqxmd.com/read/23144596/stereoscopy-and-the-human-visual-system
#4
Martin S Banks, Jenny C A Read, Robert S Allison, Simon J Watt
Stereoscopic displays have become important for many applications, including operation of remote devices, medical imaging, surgery, scientific visualization, and computer-assisted design. But the most significant and exciting development is the incorporation of stereo technology into entertainment: specifically, cinema, television, and video games. In these applications for stereo, three-dimensional (3D) imagery should create a faithful impression of the 3D structure of the scene being portrayed. In addition, the viewer should be comfortable and not leave the experience with eye fatigue or a headache...
May 2012: SMPTE Motion Imaging Journal
https://www.readbyqxmd.com/read/22312187/age-dependent-changes-in-rat-lacrimal-gland-anti-oxidant-and-vesicular-related-protein-expression-profiles
#5
Thiago Martins Batista, Lilian Midori Tomiyoshi, Ana Carolina Dias, Letícia Prates Roma, Carolina Maria Módulo, Leonardo Tannus Malki, Elísio Bueno Machado Filho, Rafael Deminice, Alceu Afonso Jordão, Daniel A Cunha, Eduardo Melani Rocha
PURPOSE: Anti-oxidation and exocytosis are important for maintaining exocrine tissue homeostasis. During aging, functional and structural alterations occur in the lacrimal gland (LG), including oxidative damage to proteins, lipids, and DNA. The aims of the present study were to determine in the aging LG: a) the effects of aging on LG structure and secretory activity and b) changes in the expression of oxidative stress markers. METHODS: To address these goals, tear secretion composition and corneal impression cytology were compared between male Wistar rats of 2 (control) and 24 (aged) months...
2012: Molecular Vision
https://www.readbyqxmd.com/read/21479104/stereo-display-with-time-multiplexed-focal-adjustment
#6
David M Hoffman, Philip J W Hands, Andrew K Kirby, Gordon D Love, Martin S Banks
In stereo displays, binocular disparity creates a striking impression of depth. However, such displays present focus cues-blur and accommodation-that specify a different depth than disparity, thereby causing a conflict. This conflict causes several problems including misperception of the 3D layout, difficulty fusing binocular images, and visual fatigue. To address these problems, we developed a display that preserves the advantages of conventional stereo displays, while presenting correct or nearly correct focus cues...
2009: Proceedings of SPIE
https://www.readbyqxmd.com/read/21438958/digital-image-capture-and-rapid-prototyping-of-the-maxillofacial-defect
#7
Jennifer V Sabol, Gerald T Grant, Peter Liacouras, Stephen Rouse
In order to restore an extraoral maxillofacial defect, a moulage impression is commonly made with traditional impression materials. This technique has some disadvantages, including distortion of the site due to the weight of the impression material, changes in tissue location with modifications of the patient position, and the length of time and discomfort for the patient due to the impression procedure and materials used. The use of the commercially available 3dMDface™ System creates 3D images of soft tissues to form an anatomically accurate 3D surface image...
June 2011: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/18022469/panfacial-fractures-analysis-of-33-cases-treated-late
#8
Dongmei He, Yi Zhang, Edward Ellis
PURPOSE: The aim of this retrospective study was to analyze the characteristics of delayed panfacial fractures and evaluate treatment results. PATIENTS AND METHODS: Thirty-three patients with delayed panfacial fractures were treated in the Maxillofacial Trauma Center of Peking University, School and Hospital of Stomatology between 1998 and 2004. Each patient was examined by computed tomography (CT) scans before operation. For those who had no severe opening restriction, dental impressions were taken to fabricate dental casts...
December 2007: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/7662765/vergence-eye-movement-control-and-multivalent-perception-of-autostereograms
#9
D Reimann, T Ditzinger, E Fischer, H Haken
We introduce a dynamical model for automatic vergence eye movement control. In connection with our dynamical system of binocular model neurons that solves the correspondence problem of stereo-vision, we present a complete model for stereo-vision. Our automatic vergence eye movement control adjusts an image segment, which is of momentary interest to the observer. The adjustment is done in such a way that we only need to define a disparity search range of minimal extension. Recently, a new method of encoding (3D) three-dimensional information in 2D pictures was designed in the form of computer-generated patterns of colored dots...
July 1995: Biological Cybernetics
https://www.readbyqxmd.com/read/1966579/detection-of-the-complement-cd21-epstein-barr-virus-receptor-in-human-lacrimal-gland-and-ocular-surface-epithelia
#10
J Levine, S C Pflugfelder, M Yen, C A Crouse, S S Atherton
CD21, the receptor for the C3d complement fragment, has been reported to be the Epstein-Barr virus (EBV) receptor in B lymphocytes and cultured squamous epithelial cells. This receptor has previously been found to be expressed in the epithelia of nonocular mucosal-associated lymphoid tissues (MALT) which are also sites of persistent EBV infection. We recently found evidence of persistent EBV infection in human ocular MALT and hypothesized that the epithelia in these tissues may also express the complement (C3d)/EBV receptor...
1990: Regional Immunology
1
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"