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.
Results
Showing 1 to 20 of 110 for “"L5"”.
-
A Subject Specific Surface Electromyography Model For Estimating L4/L5 Compressive Loading
… a patient specific EMG model for measuring L4/L5 compressive loading. I hypothesize that use of a subject specific muscle force to EMG relationships will reduce percent error of muscle force estimation. Methods: Ten volunteer subjects with tight hamstrings and no history of back injury were …
-
Significance of Specific Force Models in Two Applications: Solar Sails to Sun-Earth L4/L5 and GRAIL Data Analysis Suggesting Lava Tubes and Buried Craters on the Moon
In the trajectory design process, gravitational interaction between the bodies of interest plays a key role in developing the over-arching force model. However, non-gravitational forces, such as solar radiation pressure (SRP), can significantly influence the motion of a spacecraft. Incorporating …
-
Transcriptomic Signatures of Projection Class Neurons for Vocal Control
… layer 5 extratelencephalic-projecting (L5 ET) excitatory neurons of orofacial and hindlimb primary motor cortex. Compared to L5 ET hindlimb neurons, orofacial L5 ETs showed low fold, though significant, molecular specializations, including rudimentary expression patterns found in …
-
Subcortical Inputs Governing Cortical Network Activity
… through the cortical column along the L4→L2/3→L5/6 pathway. This thesis shows that sensory-evoked responses of L5/6 neurons derive from direct thalamocortical synapses, rather than the intracortical pathway. A substantial proportion of L5/6 neurons exhibit sensory-evoked postsynaptic potentials …
-
The influence of kernel size on the millability of wheat
Call number: LD2668 .T4 GRSC 1987 L5
-
Biomechanical Comparison of Lumbar Disc Replacements
… in order, were the harvested state, ProDisc-L at L5-S1, Maverick at L5-S1, and a pedicle screw fixation at L5-S1. ProDisc-L was less flexible than Maverick in flexion but otherwise similar. ProDisc-L and Maverick did not offer any differences in percent rotation contribution compared to the …
-
Evaluation of extracorporeal shockwave for treatment of horses with thoracolumbar pain
… was recorded at T12, T14, T16, T18, L3 and L5 (days 0, 45, 65). MNT was measured at T12, T14, T16, T18, L3 and L5 every 7 days (day 0-56). Change in MNT in 10/12 horses was significant at each timepoint compared to day 0 (P<0.05). MNT increased at all timepoints at 6 sites in 2/12, at 5 …
-
A Multi-Constellation Multi-Frequency GNSS Software Receiver Design for Ionosphere Scintillation Studies
… results of scintillation effects on the new GPS L5 signal based on data collected using a real-time scintillation monitoring and data collection system at HAARP, Alaska. The data collection setup includes a custom narrow band front end that collects GPS L1, L2 IF samples and two reconfigurable …
-
Trunk Biomechanical Responses during Sudden Loading
… 4.1 degrees less trunk flexion, 6.6 Nm less L5/S1 joint moment and 32.0 N less shear force when using staggered stance with right foot forward (the most preferred placement) in comparison to wide stance (the least preferred placement). Asymmetric load releasing position consistently resulted …
-
Design, synthesis and characterization of new iron and aluminium chelating agents
… are: A new family of hydroxypyrone ligands (L4, L5, L6, L7, L8, and L9) has been synthesized and fully characterized. These ligands are easy and cheap to produce; Complex formation equilibria showed good efficiency and selectivity for iron and aluminium. With Fe3+ various protonated 2:3 Fe:L …
-
Elastoplastic response of unidirectional graphite/aluminum under combined tension-compression cyclic loading
… The elastoplastic response of graphite/aluminum l5° off-axis and 90° specimens under tension-compression cyclic loading was subsequently investigated at three temperatures, -l50°F, room temperature and 250°F. The test results showed that the tensile response was predominantly elastoplastic, …
-
Artrodesis lumbares, rigidez del sistema y su repercusión en los discos adyacentes
… de fusión transforaminal del segmento L4-L5. Se estudia el efecto de la rigidez del sistema utilizado entre dos configuraciones diferentes, fusión transforaminal circunferencial 360º o limitada a 270º, a la hora de transferir las cargas a los segmentos móviles adyacentes (L3-L4 y L5-S1), …
-
Computationally Efficient Finite Element Models of the Lumbar Spine for the Evaluation of Spine Mechanics and Device Performance
… In this study a computationally efficient L4-L5 FSU model and a L1-Sacrum multi-segment model were developed and validated. The FSU is a functional spine unit consisting of two adjacent vertebral bodies, in this case L4 and L5. The multi-segment model consists of all lumbar vertebrae and the …
-
Mittelfristige Ergebnisse nach ein- und mehrsegmentalen Spondylodesen der Lendenwirbelsäule
… vorausgegangen. 22 mal wurde das Segment L5/S1, 10 mal das Segment L4/L5 und 41 mal mehrsegmental operiert. Die Operation erfolgte zweizeitig mit einem Abstand von durchschnittlich 13,2 Tagen (10 – 24 Tage). Die klinische und radiologische Nachuntersuchung erfolgte durchschnittlich nach …
-
Top-down and bottom-up interactions for cortical bursting
… widespread high-frequency bursts in L2/3 and L5 pyramidal neurons. Contrary to expectation, bursts exhibited extremely short response latencies, and were most strongly recruited by Gabor stimuli. We further tested the causal contribution(s) of apical dendrites to burst firing and top-down …
-
Selective Neuronal Vulnerability in Neocortices from Patients with C9ORF72-related Neurodegeneration
… (Chapter 3). Upper motor neurons (herein called L5 ETs: layer 5 extratelencephalic-projecting excitatory neurons) were expected to display pathology in c9HRE and served as a positive control. Other vulnerable neuronal populations were identified by examining neurons with similar transcriptomic …
-
A patient specific total disc replacement to treat degenerative disc disease
… the mechanical environment of the native L4/L5 intervertebral disc and evaluate its capacity to support regenerative cell responses under physiological cyclic loads. Finite element (FE) modelling was used as a prescriptive rather than descriptive tool to guide the design of a scaffold-based …
-
Finite Element and Probabilistic Analysis of Soft Tissue Structures of the Human Lumbar Spine
… and performance. Finite element models of the L4-L5 level of the lumbar spine are often used, which include a representation of the intervertebral disc and spinal ligaments. Validation of these models are typically based on torque rotation data from a single subject or the models use average …
-
Estimating Lumbar Spinal Loads During a Golf Swing Using an EMG -Assisted Optimization Model Approach
… was to estimate the lumbar spinal loads at L4--L5 level during a golf swing using musculoskeletal modeling techniques. This study also examined the activation patterns of individual lower trunk muscles during a golf swing using surface electromyographic (EMG) techniques. Data were collected from …
-
Effects of space weathering on the Trojan asteroids
Trojan asteroids orbit at Jupiter's L4 and L5 points. They are included in the D-class of asteroids because of their steep spectral slope. According to spectra of other asteroid classes, the larger the diameter is of a D-class asteroid, the redder the asteroid should be in the visible spectrum. We …
Page 1 of 6