Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"PTZ"”.
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Effects of constitutive and acute Connexin 36 deficiency on brain-wide susceptibility to PTZ-induced neuronal hyperactivity
… We utilize the zebrafish pentylenetetrazol (PTZ; a GABA(A) receptor antagonist) induced seizure model, taking advantage of the compact size and optical translucency of the larval zebrafish brain to assess how PTZ affects brain-wide neuronal activity and Cx36 protein expression. We exposed …
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Evaluation of Seizure Threshold as an Early Behavioral Marker of Disease Progression in the Mouse Model of Mucopolysaccharidosis IIIA
… the chemiconvulsant drug, pentylenetetrazol (PTZ), a GABA receptor inhibitor. The acute intravenous infusion with PTZ did not show threshold differences between the diseased and normal mice. However, chronic administration of a subconvulsive dose of PTZ, resulted in a difference in seizure …
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Impacto de la concentración mínima inhibitoria (cmi) y de los puntos de corte clínicos (clsi y eucast) de las combinaciones betalactámicos / inhibidores de betalactamasas en el pronóstico de bacteriemias por enterobacteriaceae
… (AMC) y piperacilina-tazobactam (PTZ) son betalactámicos en asociación con inhibidores de betalactamasas con actividad frente a bacterias gramnegativas y grampositivas. El objetivo de este proyecto fue, en el caso de piperacilina-tazobactam, evaluar el impacto de la CMI de este …
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Greener Photoredox-Catalyzed Phosphonations of Aryl Halides
… First, the discovery that 10H-phenothiazine (PTZ) enables the transition metal-free phosphonation of aryl halides using trialkyl phosphites will be presented. PTZ serves as a photocatalyst capable of reducing the aryl halide to access aryl radicals, which readily couple with phosphite esters. …
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Developmentally Related Increased Seizure Susceptibility to Pentylenetetrazole in Fragile X Knockout Mice
… than control animals to the chemoconvulsant PTZ as adults, but not as juveniles. Furthermore, the temporal progression suggests that there is a developmental involvement in this seizure susceptibility. The mechanism of the seizure susceptibility and temporal progression are areas for further …
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Mechanisms of axial polarity modification during postembryonic development of the basal bilaterian Convolutriloba macropyga
… tissues are titled the polarity transition zone (PTZ). While this alteration of existing axial polarity seems to be required for subsequent reversal of the AP axis in the budding progeny, the mechanisms that allow for temporary axis modification and reversal are not known. Wnt, Hedgehog, and other …
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Efeitos de crises crônicas e agudas induzidas por pentilenotetrazol sobre a hidrólise de nucleotídeos púricos em soro de ratos adultos
… pelo agente pró-convulsivante pentilenotetrazol (PTZ) sobre a hidrólise dos nucleotídeos ATP, ADP e AMP em soro de ratos, uma vez que formas solúveis de nucleotidases já estão descritas. No modelo agudo os animais receberam apenas 1 injeção de PTZ ou salina, sendo mortos por decapitação em …
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Classifying drug-induced epileptic seizures in zebrafish larvae
… classifying zebrafish larvae having an (PTZ induced) epileptic seizure. The model also computes biomedical parameters describing behavioural attributes of the larvae. Several data mining approaches were implemented for the data, of which best results were obtained for support vector …
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Single-Stranded-Dna Sp6 and T7 Bacteriophage Promoter Plasmids for Engineering Mutant Rnas and Proteins: Extensions and Deletions at the Amino Terminus Which Alter the Activity of Preproparathyroid Hormone Signal Peptide
… replication and secretion of the pSP6(.)f1 or pTZ plasmids as single stranded DNA viral particles. A single species of RNA can be transcribed from these vectors due to the stringent specificity of bacteriophage T7 or SP6 RNA polymerase for their respective promoter DNA sequences. Thus, these …
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Indagine etnofarmacologica su Casimiroa edulis Llave et Lex
… action); it reduced catalepsy haloperidol and PTZ-induced. The extract of bark significantly reduced immobility time in the FST and it increased pentobarbital-induced hypnosis.
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Dynamic Camera Positioning and Reconfiguration for Multi-Camera Networks
… field-of-view, resolution and in case of active PTZ cameras pan,tilt and zoom. Further there is also a possibility of event driven automatic realignment of camera network to better observe the occurring event. Given the above mentioned possibilities, there are two objectives of this doctoral …
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Localization and Optimization Problems for Camera Networks
… systems, we focus on networks of autonomous PTZ cameras. A large set of cameras communicating each other through a network is a widely used architecture in application areas like video surveillance, tracking and motion. First, we consider relative localization in sensor networks, and we …
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Design And Analysis Of Scalable Video Streaming Systems
… and the control of various Pan, Tilt, Zoom (PTZ) video cameras. In particular, we develop a camera management solution that provides the best tradeoff between the subject recognition probability and time complexity. We consider both subject grouping and clustering mechanisms. In subject …
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Regulation of in vivo excitatory/inhibitory balance by the cystine/glutamate exchanger system xc-
… GABAA receptor antagonist, pentylenetetrazole (PTZ). Paradoxically, after repeated repeated/chronic administration of the same chemoconvulsants, SLC7A11sut/sut mice exhibit signs of hypo-excitability, a response polar opposite to that which occurs in SLC7A11+/+ littermate controls. Whether the …
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Deployment, Coverage And Network Optimization In Wireless Video Sensor Networks For 3D Indoor Monitoring
… focus cameras such as the pan, tilt and zoom (ptz), the sensing range of a video sensor can be further regarded as a fan-shape in 2d and pyramid-shape in 3d. Such uniqueness attributed to wireless video sensors and the challenges associated with deployment restrictions of indoor monitoring make …
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Development of Multi-modal Optical Coherence Tomography Imaging Systems and Probes
… probes are built using a piezoelectric (PTZ) cantilever scanner and a micro lens, enabling a 4 mm diameter probe size while achieving a large field of view (2.25 mm2). Finally, we have developed a novel photothermal mid-infrared spectroscopic imaging (MIRSI) OCT technology. Unlike prior …
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Investigating the Impact of Metabolic Dysregulation on Nervous System Development and Function: A Study of CPT2 Deficiency in a Zebrafish Model System
… addition of a convulsant drug pentylenetetrazol (PTZ) compared to control larvae. These data suggest that CPT2 deficiency can be effectively modeled in the vertebrate zebrafish model system and that the inability to properly utilize β-oxidation during early brain development heightens seizure-like …
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Investigating the virtual directing strategies of a virtual cinematographer in an automatic lecture video post-processing system
… mounted 4K cameras are now cheaper than PTZ cameras which makes them a desirable alternative for lecture recordings. Unfortunately, 4K resolution videos are very large, posing a problem for storage and streaming - the file size for a 45 - 60 minute lecture video in 4K can exceed 2GB. Many …
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Neuromodulation by endogenous Interlukin-1β in hippocampus of the murine brain: Regulation of neuronal excitation
… of the seizure threshold. In Aim 1, I used the PTZ acute seizure model and mice lacking IL-1R1 to confirm the previous results demonstrating that IL-1β signaling is required for maintenance of the innate seizure threshold. In Aim 2, using a brain-permeable antagonist of the ATP-activated …
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Multimodal Indexing of Presentation Videos
… into a mosaic are sampled according to the PTZ camera movement, which is computed through least square estimation starting from the luminance constancy assumption. A local features based stitching algorithm is then applied to estimate the homography among a set of video frames and median …