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Showing 1 to 20 of 57 for “"OCTA"”.

  1. Copper complexes of dinucleating octa-azamacrocyclic ligands

    Dancey, Keith PhilipPolytechnic of North London1982

    … with the appropriate polyamine; I, large-ring octa-aza macrocycles e.g. the 28—membered ring compound 5,6,7,8,15,16,23,24,25,26,33,34— dodecahydrotetrabenzo(e,m,s,a’) (1,4,11,15,18,22,25) octaaza- cyclooctacosine and related 30- and 36- membered ring compounds; II, the "fused" …

    london-metro Repository record

  2. Reactions of Two Spiro(2.5)octa-4,7-Dien-6-Ones and a Spiro(2.5)octa- 1,4,7-Trien-6-One

    Chamot, Dennis IraUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-09T17:36:31Z (GMT). No. of bitstreams: 1 7013270.pdf: 1667347 bytes, checksum: f6406f00b8549fc8eeff7438e64cb578 (MD5) Previous issue date: 1969

    uiuc Repository record

  3. Spin Chemistry of Guest@Host Systems: H₂@C₆₀ and Nitroxide@Octa Acid

    Chen, Judy Yih-Ching2012

    … incarcerated inside a capsule (nitroxide@octa acid) and presents supramolecular effects on paramagnetic interaction between the nitroxide incarcerated inside the capsuleplex with the nitroxide in bulk aqueous media studied by electron paramagnetic resonance (EPR) spectroscopy.

    columbia-diss Repository record

  4. Benefits and accessibility of OCTA imaging for diabetic retinopathy and macular edema

    Rhee, Jae2023

    … Optical Coherence Tomography Angiography (OCTA) is an emerging imaging modality that has advantages to the current standard for assessing retinal microvascular changes in diabetic eye diseases. This study aims to evaluate the cost-effectiveness of different screening strategies …

    bu Repository record

  5. Synthese, Eigenschaften und Topochemie von 2,5-Dimethoxyphenyl- und Chinon-substituierten Octa-3,5-diinen

    Kindermann, OliverUniversität Heidelberg

    … 2,5-Dimethoxyphenyl- und Chinon-substituierten Octa-3,5-diinen. Untersuchungen zur Topochemie zeigten eine ausgeprägte Festkörperphotoreaktivität einiger hergestellter Derivate.

    heid-diss Repository record

  6. Investigations of the Photochemical and Thermal Reactions of Hindered Spiro(2.5)octa-4,7-Dien-6-Ones

    Lunsford, Willie B.University of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-10T23:01:45Z (GMT). No. of bitstreams: 1 7412091.pdf: 4940550 bytes, checksum: 1de9d3117b68810a8da22b813eb9c831 (MD5) Previous issue date: 1973

    uiuc Repository record

  7. High A-scan rate optical coherence tomography angiography for blood flow speed quantification in the retina

    Hwang, YunchanMassachusetts Institute of Technology2024

    Optical coherence tomography angiography (OCTA) offers non-invasive and depth-resolved imaging of the retinal vasculature. While OCTA is widely used to study retinal disease, it traditionally provides limited information about blood flow speed. This thesis introduces a second-generation variable …

    mit Repository record

  8. Evaluation of 1,1-Dimethyl-5,7-Di-T-Butylspiro[2.5]Octa-4,7-Dien-6-One as a Mechanistic Probe for Single Electron Transfer

    Gillmore, Jason G.Virginia Tech1998

    … this work 1,1-dimethyl-5,7-di-t-butylspiro[2.5]octa-4,7-dien-6-one (6) is presented as a new "hypersensitive" probe for single electron transfer to conjugated carbonyl compounds. This new probe functions in a rather unique fashion, allowing interpretation of the mechanism at work on the basis of …

    vt Repository record

  9. Advances in the endoscopic management of esophageal neoplasia using ultrahigh speed endoscopic optical coherence tomography

    Lee, Hsiang-Chieh, Ph. D. Massachusetts Institute of TechnologyMassachusetts Institute of Technology2017

    … provide vascular contrast with OCT angiography (OCTA) in ophthalmology, the translation of OCTA to endoscopic applications has been challenging. The aims of this thesis are: 1) Development of distally actuated imaging devices including a micromotor balloon catheter allowing wide field OCTA …

    mit Repository record

  10. Synthesis of novel red-shifted phthalocyanines

    Yang, JianjunDublin City University2006

    … --y nyl) phthalocyanine; 3,4,12,13,2 1,22,30,3 l-octa(alkyny1) and octa(alkeny1) naphthalocyanines. It was found that the each conjugated alkenyl group causes about 3nm red-shift on the PC Q-band. We also demonstrated the n-conjugation of Ncs lead to a 3.5 - 4 nm red-shift for each alkynyl and a …

    dcu Repository record

  11. Fluorescent ajoenes as a mechanistic probe for cancer

    Cotton, JonathanDepartment of Chemistry2010

    … (E/Z)-1,8-(Bis-p-methoxyphenyl)-2,3,7-trithia-octa-4-ene 7-oxide 17, was developed as a continuation of SAR studies performed by our group, involved the placing p-methoxyphenly groups on the termini of the ajoene pharmacophore.

    cape-town Repository record

  12. Optical Coherence Tomography Angiography for Imaging and Analysis of the Choriocapillaris in Late Age-Related Macular Degeneration

    Moult, Eric MichaelMassachusetts Institute of Technology2021

    … optical coherence tomography angiography (OCTA) technology in conjunction with image analysis and disease modeling approaches. Key study results presented in this thesis include: (1) the development of an OCTA-based method for microvascular velocimetry that is compatible with clinical …

    mit Repository record

  13. I. Syntheses and Structures of the First 10-Phosphorus-3 and 10-Arsenic-3 Species. Ii. Intramolecular Oxidative Cyclization Reactions of Trivalent Arsenic and Carbonyl Functions (Phosphorandiide, Arsorane)

    Culley, Scott AnthonyUniversity of Illinois at Urbana-Champaign2014

    … ,8-dioxa-3,7-di-tert-butyl-1-phosphabicyclo{3.3.0}octa-3,6-diene (ADPO) is described. The compound exhibits a T-shaped molecular geometry about the phosphorus center and represents the first example of a tri-coordinate hypervalent phosphorus (10-P-3). The analogous 10-As-3 compound has also been …

    uiuc Repository record

  14. Electronic Properties and Langmuir-Blodgett Films of Discotic Organic Semiconductors

    Ahmida, MohamedUniversity of Windsor2012

    … orbitals. Objective of the investigation of octa-carboxylic acid and octa-alcohol substituted tetraazaporphyrin (TAP) dyes in Langmuir-Blodgett (LB) monolayers (Chapter 5) is the generation of self-assembled monolayers with the elusive face-on orientation of the TAP macrocycles. Monolayers …

    windsor Repository record

  15. Synthesis, characterization and properties of rigid macromolecules with extended conjugation, using palladium-catalyzed alkynylated polyhaloarenes.

    Akintomide, TemiloluwaUniversity of North Texas2007

    … with trimethylsilylbuta-1,3-diyne, trimethylsilylocta-1,3,5,7-tetrayne, and trimethylsilylhexadeca-1,3,5,7,9,11,13,15-octayne to yield the new 1,3,5-tris(trimethylsilylbuta-1,3-diynyl)benzene and the proposed 1,3,5-tris(8-(trimethylsilyl)octa-1,3,5,7-tetraynyl)benzene and …

    unt Repository record

  16. Optical Coherence Tomography Angiography and wide-field fluorescein angiography in Diabetic Retinopathy

    CASTELLINO, NICCOLO'Università degli studi di Catania2024

    … a coerenza ottica (OCT) e angiografia OCT (OCTA). Tutti i pazienti sono stati sottoposti a una fase di carico di iniezioni di anti-VEGF e poi sono stati trattati su base bimestrale o con un regime di trattamento “treat and extend”(TER). I dati clinici e di imaging sono stati raccolti durante …

    catania Repository record

  17. Theoretical Studies of the Energies and Geometries of Strained Hydrocarbons

    Miller, Mitchell AlanThe Graduate School and University Center of The City University of New York2020

    … III. Ab initio calculations on bicyclo (2.2.2) octa-2,5,7-triene (barrelene), bicyclo (2.2.2) octa-2,5-diene, bicyclo (2.2.2) oct-2-ene, and bicyclo (2.2.2) octane have been performed at the 3-21G, 6-31G* and 6-31G** SCF levels and at the 6-31G* RMP2 level and the contributions of zero-point …

    cuny-grad Repository record

  18. The Reaction Kinetics of Neutral Free Radicals and Radical Ions Studied by Laser Flash Photolysis

    Friedline, Robert AlanVirginia Tech2004

    … SET probes, 5,7-di-tert-butylspiro[2.5]octa-4,7-dien-6-one and 1,1,-dimethyl-5,7-di-tert-butylspiro[2.5]octa-4,7-dien-6-one. The decay rate constants for these radical anions were measured to be greater than 108 s-1, driven by the formation of an aromatic ring.

    vt Repository record

  19. Defined Dimensional Alterations in Enzyme Substrates. Synthesis and Enzymatic Evaluation of Some Lin-Naphthopurines

    Moder, Kenneth PhilipUniversity of Illinois at Urbana-Champaign2014

    … naphthalenes via a combination of bicyclo{4.2.0}octa-1,3,5-triene and aryl trimethylsilyl chemistry led to the synthesis of benzimidazo{5,6-g}-8H-quinazolin-9-one and benzimidazo{5,6-g}-6H,8H-quinazoline-7,9-dione 4.8 (ANGSTROM) laterally extended dimensional derivatives of hypoxanthine and …

    uiuc Repository record

  20. Studies of sodium azide with tetraphenylcyclopentadienones and various analogs

    Davis, Edward A.Virginia Tech1985

    … l,5,7,8–tetraphenyl-2,3,4–triazabicyclo[3.3.0]octa-2,7-dien-6-ones and the 3,4,5,6–tetraphenyl–2(lH)â pyridinones that were formed by an acid catalyzed rearrangement. It was found that the chloro substituent had no effect on the reaction. The methoxy substituent had a moderate effect in that …

    vt Repository record

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