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 16 of 16 for “"headgear"”.
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Electrode and Headgear Design for Accurate TDCS
… of the sponge electrodes and making a TDCS headgear that ensures the precise placement of the electrodes all while making the process and equipment simpler is one way to increase the use of TDCS. This paper discusses the background on TDCS and other brain stimulation methods and will explain …
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Evaluation and Application of Brain Injury Criteria to Improve Protective Headgear Design
As many as 3.8 million sports-related traumatic brain injuries (TBIs) occur each year, nearly all of which are mild or concussive. These injuries are especially concerning given recent evidence that repeated concussions can lead to long-term neurodegenerative processes. One way of reducing the …
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A Comparison of the Nance Holding Arch and Kloehn Headgear in Maxilliary Molar Anchorage
… The Nance Holding Arch and Kloehn cervical headgear were compared as anchorage devices. A control group received no anchorage mechanics during cuspid retraction. All cuspids were retracted with Hilger's loop retractors.</p> <p>Anchorage loss was measured cephalometrically by comparing the …
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Biomechanics of Head Impacts in Soccer
… interpreted with caution. The ability of soccer headgear to reduce linear and rotational head accelerations during common soccer impacts was examined in the laboratory. Ball-to-head and head-to-head impacts were performed at a range of speeds and impact orientations. Headgear resulted in small …
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Development of a Test Method for Evaluating the Ability of Headgear to Reduce Head Kinematics During Rugby Head Impacts
… and has imposed standards limiting soft-shell headgear's protective capabilities. However, evidence from other contact sports, including soccer, flag football, and rugby, suggests that soft-shell headgear can reduce concussion risk. Instrumented mouthguards (iMGs) provide researchers with …
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The History and Development of the Football Helmet
… study related the changes in design of football headgear, humorous photographic plates included throughout the chronicled data depict graphically the changes which occurred. These photographs provide a proper perspective for an understanding of the present day football helmet.</p> <p>An account …
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An investigation of the effectiveness of miniscrews in orthodontics
… anchorage effectiveness when measured against headgear and transpalatal arch in a randomised clinical trial. <br/><br/><b>Methods</b>: In two systematic reviews, databases were searched, data was extracted, the risk of bias was assessed and meta-analyses were performed when appropriate. In the …
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Investigating Cerebral Function in Neonates Using Diffuse Optical Tomography
… I describe the development and design of DOT headgear for neonates and subsequently apply this in neonatal studies of cerebral function. Firstly, the DOT headgear was applied to healthy neonates to investigate the early stages of vocal specialisation. In this functional activation study, the …
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Munnur hestsins við frumtamningu : forathugun á íslenskum tamningatrippum
… expressed by the horses when introduced to the headgear equipment. For ten weeks, eight horses were started with commonly used headgear equipment in Iceland, applying methods of first basic training practiced at Hólar University College. Three oral examinations were performed on the horses at …
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Discrimination against Veiled Women in the West: Social Isolation
… <em>hijab</em>, veil, and all other religious headgear are used to identify them as targets for discrimination.</p>
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Classification and Treatment of Angle Class II Subdivision Malocculsions
… trends toward less surgery, extractions, and headgear, and towards more reliance on fixed functional use. Ideal correction of midlines was not always achieved, especially in the case of mandibular skeletal asymmetry, with under-correction occurring more commonly than over-correction. Final PAR …
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Sport-related Concussion Incidence and Mechanism of Injury in Male and Female Players at the South African Youth Week Rugby Tournaments: 2011-2018
… SRC incidence were tournament day and the use of headgear. SRC was more likely to occur on day two than day four (p=0.0008), day five (p=0.0002) and day six (p<0.001). Players who did not wear headgear were more likely to sustain a concussion than those who did (p<0.001). Conclusion: Overall SRC …
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Sex-Specific Head Impact Exposure in Rugby: Measurement Considerations and Relationships to Clinical Outcomes
… head impacts, does not require protective headgear, and is played the same for both men and women. The females in our study sustained fewer impacts per session than the males, but their impacts had similar linear acceleration magnitudes. The kinematics of the concussive male impacts were …
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Evaluation of the Treatment Effects of the Functional Regulator of Fränkel in the Correction of Angle Class II Malocclusions
… often exist in these individuals. Traditionally, headgear has been used to restrain forward maxillary growth, or to distalize the maxilla. However, there is evidence that suggests that the majority of Class II skeletal relationships are due to a retrusive mandible, rather than a protrusive …