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 42 for “"DBI"”.
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Modulation of hippocampal synaptic transmission by the peptide diazepam binding inhibitor and optogenetic manipulation of astrocytes
… types. The peptide diazepam binding inhibitor (DBI) has complex physiological functions and is capable of both enhancing and attenuating inhibitory synaptic transmission in different brain regions. However, whether DBI modulates hippocampal synaptic transmission or hippocampal-dependent …
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Diffuse Brain Injury Triggers Ultra-Rapid Perisomatic Traumatic Axonal Injury, Wallerian Change, and Non-Specific Inflammatory Responses
A significant component of diffuse brain injury (DBI) is diffuse axonal injury (DAI) which is responsible for the morbidity and mortality associated with this condition. DAI and its experimental counterpart traumatic axonal injury (TAI) result in scattered microscopic pathology characterized by …
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Design and feasibility evaluation of low-cost 3D printing of Horn Antennas
… X-band pyramidal horn achieved a gain of 9.2 dBi with an input reflection coefficient of −11.9 dB at a centre frequency of 10 GHz. This is in agreement with the measured gain and reflection coefficient of the X-band commercial horn. The Ku-band pyramidal horns that have been metallised using …
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Stability of machine learning algorithms
… first one is the decision boundary instability (DBI) which measures the variability of linear decision boundaries generated from homogenous training samples. Incorporating DBI with the generalization error (GE), we propose a two-stage algorithm for selecting the <em>most accurate and stable</em> …
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Using Non-Intrusive Instrumentation to Analyze any Distributed Middleware in Real-Time
Dynamic Binary Instrumentation (DBI) is one way to monitor a distributed system in real-time without modifying source code. Previous work has shown it is possible to instrument distributed systems using standards-based distributed middleware. Existing work, however, only applies to a single …
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Implantable ferrite antenna for biomedical applications
… having a -16 dB reflection coefficient and -18 dBi realized gain at resonance, with a 185 MHz -10 dB bandwidth. The simulated effects of ferrite film loading on antenna performance are investigated, with comparisons made for 5 and 10 µm thick films, as well as for 10 µm thick films with varying …
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Exploring structures and processes of medicines management in elderly hospitalised patients in the United Arab Emirates.
… specific, emerging tool - the Drug Burden Index (DBI) - relating to anticholinergic/sedative agents, which are problematic in the elderly. The aim was to critically appraise, synthesize and present evidence of DBI use. The review protocol was registered with the Joanna Briggs Institute and …
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Spectroscopic measurements and modeling of carbonaceous particle combustion in a shock tube
… Single color diffuse-backlit extinction imaging (DBI-EI) is used for inferring mass loss rates from optical signature decays. For resolving wavelength dependent optical efficiencies, DBI-EI is developed further by combining a supercontinuum source and an imaging spectrograph, extending classical …
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Miniaturized Antenna for Satellite Broadband Application
… Although MEDA also offers a stable gain of 8.5 dBi over the desired range of frequencies, yet it is not high enough for the satellite internet application. Cavity antennas with different types of superstrates are explored here to increase the directivity of the MEDA element. An optimized cavity …
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Cognition, Fatigue, and Health-related Quality of Life in Multiple Sclerosis: Exploring the Role of Polypharmacy and Anticholinergic Medication Burden
… p < .001. Additionally, the Drug Burden Index (DBI) accounted for additional variance in cognitive performance beyond that explained by age, education, MS disease duration, and comorbidities, ΔR2 = .12, F(5, 84) = 7.84, p < .001. Polypharmacy and anticholinergic burden indices did not predict …
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WITHDRAWAL OF LIFE SUSTAINING THERAPY IN NEUROSURGICAL PATIENTS: AN URBAN BIOETHICAL REVIEW
… in patients with devastating brain injury (DBI). The complexity of this decision-making process is multifactorial, including practitioner- and patient-specific variables, as well as surrogate decision-maker bias, inaccuracies in scoring systems, and inconsistencies in guidelines endorsed by …
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Design a high gain UWB mimo uniplanar monopole antenna with FSS array for metallic object microwave imaging
… coupling (S21 about -27 dB) and gain (6-8.5 dBi), and it better than the existing antennas of 3.1-10.6 GHz, _20 dB, and 5.5 dBi, respectively. Additionally, the baggage-scanner scheme is developed as a case study to evaluate the IMAF is 55% higher than that of the MIMO antenna without an FSS …
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Modeling & Development of Wirelessly Coupled Loops for Chip-to-Antenna Communications
… respectively, with a peak gain greater than 5 dBi at the beams broadside (8 dBi in simulation). These results agree quite well, with discrepancies arising primarily from the presence of adhesive between the loops. This adhesive wicked underneath the IC during assembly, which was not accounted …
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Adolescent Literacy: The Case for Using Data-Based Individualization to Improve Student Outcomes
… to implement the data-based individualization (DBI) process. The training of teachers to use DBI will provide teachers with a feasible and sustainable framework for collecting and analyzing the granular level of data necessary to pinpoint deficits and select interventions to address students’ …
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Phase planes in the universe : chaotic cyclic universes and kicking Chameleons
… shown that the addition of a Dirac-Borne-Infeld (DBI) correction - a consistent, high energy modification - to the Chameleon dynamically renders it weakly coupled to matter. This is done without any fine-tuning and ensures the consistency of the Chameleon at all scales without infringing upon its …
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Development of compact dual-band monopole antenna for LTE application
… S11 parameters below -25 dB with gain around 2.2 dBi. The VSWR is 1.07 dB and the overall impedance simulation to optimize the results. After simulation, the antenna is fabricated and does the final testing in comparison with simulation results. The measurement observed very good agreement with …
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Design and analysis of a frequency reconfigurable antenna for wireless communication at 5 GHz
… obtained for all operational modes were above 6 dBi, while the return losses were above -25 dB. In addition, the simulated results showed a gain above 5.8 dB in all states and the total efficiencies were above 85%. The antenna studied in this research has application in the wireless communication …
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Reconfigurable microstrip antennas with tunable radiation pattern characteristics
… -36° to 32° with gain variation from 5.7 to 8.2 dBic, and efficiency from 54% to 75.58% along the scanning range. * Two-dimensional beam scanning antenna, where two orthogonal crossed Yagi-Uda antenna configuration is utilized. The driven element is a square patch excited with a probe coaxial …
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Adaptive beamforming of steerable array monopole antenna for WLAN application
… Furthermore, the antenna gain is improved by 1.3 dBi that achieved a value of 5.3 dBi.The envelope-cross-correlation (ECC) shows magnitudes less than 0.5 among the elements. This algorithm successfully is provided with the optimum reactance values. The proposed approach can be considered a fast …
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Connecting Inflation to Observations Through the Bispectrum
… of this pipeline to obtain a constraint on DBI inflation, and validate our implementation by comparing this constraint to an equivalent one obtained by the Planck collaboration.
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