Search results for "Eye"
showing 10 items of 2511 documents
Ortokeratoloģijas ietekme uz acs garuma un refrakcijas izmaiņām bērniem ar miopiju
2017
Darbs uzrakstīts angļu valodā uz 68 lapaspusēm, satur 17 attēlus, 10 tabulas un 73 literatūras atsauces. Darba mērķis bija salīdzināt acu aksiālā garuma un refrakcijas izmaiņas divām grupām tuvredzīgo jauniešu. Vienai grupai tuvredzība tika koriģēta ar ortokeratoloģiskajām kontaktlēcām (OK), bet otrajai ar brillēm. Pēc 18 mēnešiem tuvredzīgo pacientu grupai koriģētai ar brillēm acs aksiālais garums vidēji palielinājās par 0,20 mm, turpretī pacientiem koriģētiem ar OK kontaktlēcām tas bija tikai 0,05 mm. Pacientu grupai koriģētai ar OK kontaktlēcām tuvredzības pieaugums vidēji bija tikai -0,04 D, bet pacientiem koriģētiem ar brillēm tas bija -0,40 D. Refrakcijas izmaiņu atšķirība 0,36 D bija…
What comes first: Combining motion capture and eye tracking data to study the order of articulators in constructed action in sign language narratives
2020
We use synchronized 120 fps motion capture and 50 fps eye tracking data from two native signers to investigate the temporal order in which the dominant hand, the head, the chest and the eyes start producing overt constructed action from regular narration in seven short Finnish Sign Language stories. From the material, we derive a sample of ten instances of regular narration to overt constructed action transfers in ELAN which we then further process and analyze in Matlab. The results indicate that the temporal order of articulators shows both contextual and individual variation but that there are also repeated patterns which are similar across all the analyzed sequences and signers. Most not…
Artificial faces predict gaze allocation in complex dynamic scenes
2019
Both low-level physical saliency and social information, as presented by human heads or bodies, are known to drive gaze behavior in free-viewing tasks. Researchers have previously made use of a great variety of face stimuli, ranging from photographs of real humans to schematic faces, frequently without systematically differentiating between the two. In the current study, we used a Generalized Linear Mixed Model (GLMM) approach to investigate to what extent schematic artificial faces can predict gaze when they are presented alone or in competition with real human faces. Relative differences in predictive power became apparent, while GLMMs suggest substantial effects for real and artificial f…
Emociones y personalidad en la adopción de eWOM, modelo causal y análisis de neuromarketing
2020
El desarrollo de esta tesis, como su título indica, es el análisis del eWOM a través de la personalidad y las emociones en el ámbito del turismo, a través de un a análisis consciente con una encuesta y con un análisis no consciente mediante una herramienta de neuromarketing. La importancia de este trabajo se basa en la progresiva importancia que están teniendo los comentarios online en nuestro día a día, y más concretamente en el sector turístico y en su potencial relación con la personalidad y las emociones a la hora de la reserva en la web. La presente tesis doctoral tiene por finalidad, diseñar y contrastar empíricamente un modelo de relaciones causales, que analiza los efectos en la con…
The role of the hippocampal theta activity in classical eyeblink conditioning in rabbits
2009
Identification and quantification of phosphatidylcholines containing very long chain polyunsaturated fatty acid (VLC-PUFA) in bovine and human retina…
2010
The retina is one of the vertebrate tissues with the highest content in polyunsaturated fatty acids (PUFA). A large proportion of the retinal glycerophospholipids, especially those found in photoreceptor membranes, are dipolyunsaturated molecular species. Among them, dipolyunsaturated phosphatidylcholine molecular species are known to contain very long chain polyunsaturated fatty acids (VLC-PUFA) from the n-3 and n-6 series and having 24 to 36 carbon atoms (C24 to C36) and four to six double bonds. Recent interest in the role of VLC-PUFA arose from the findings that a protein named ELOngation of Very Long chain fatty acids 4 (ELOVL4) is involved in their biosynthesis and that mutations in E…
Bloque de constitucionalidad en el Perú: el momento para su redefinición
2020
El bloque de constitucionalidad corresponde al conjunto de normas y principios que, sin formar parte del texto constitucional, comparten su misma jerarquía y obran como criterios para enjuiciar la constitucionalidad de las leyes. La noción es de origen francés y, conforme ha sido creada, es solo para los franceses. Su desarrollo ha logrado resultados favorables en su país. Sin embargo, luego fue adaptada en España, con una realidad diferente resultando una noción multiforme y confusa. Posteriormente fue trasladad a países latinoamericanos adquiriendo en su arraigo características propias; pero su aplicación en el Perú ha tenido resultados similares al caso español. El estudio pretende, desd…
Uzturs un tā ietekme uz asaru plēvītes kvalitāti
2017
Bakalaura darbs “Uzturs un tā ietekme uz asaru plēvītes kvalitāti” uzrakstīts angļu valodā uz 33 lapām, satur 9 attēlus, 5 tabulas un 35 literatūras atsauces. Darba mērķis: noteikt saistību starp uzturu un asaru plēvītes kvalitāti. Metode: dalībniekiem bija jāievēro noteikta diēta. Viņu asaru plēvītes kvalitāte tika novērota 6 mēnešus – mērījumi tika veikti pirmajā vizītē un tad atkārtoti pēc 1, 3 un 6 mēnešiem ar BUT, Schirmer 1 un TBUT testu. Secinājumi: ievērojot noteiktu diētu, asaru plēvītes kvalitāte uzlabojas visas vecuma grupās, lai gan labāki rezultāti novērojami jaunākās vecuma grupās. Atslēgas vārdi: uzturs, asaru plēvītes kvalitāte, vecuma ietekme, BUT, Schirmer 1, TBUT
Heritability of anterior chamber depth and axial length: a population-based twin study among 66 to 79-year old female twins.
2014
The effects of microwave radiation generated by mobile phones on the tear film
2021
Abstract Electromagnetic radiation (ER) emitted by mobile phones and other modern devices has potentially harmful effects on ocular tissue. Their effects on the eye surface and tear film are little known so far. The aim of this paper was to investigate the effects of ER emitted by the phone mobile on the tear film. For this study, we selected a total of 50 subjects, young, healthy, without chronic treatment, who are not contact lens wearers and who have no history of ophthalmic surgery. Schirmer I test, tear pH and tear ferning test (TFT) were performed on all subjects before (“-pre”) being exposed to ER emitted by the mobile phone and after (“-post”) exposure for 5 minutes, the pH and TFT …